BTS3900 (Ver.C) Hardware Description(07)(PDF)-En

BTS3900 (Ver.C)

Hardware Description Issue

07

Date

2012-12-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]

Issue 07 (2012-12-30)

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

i

BTS3900 (Ver.C) Hardware Description

About This Document

About This Document Purpose This document provides reference for planning and deploying the BTS3900 (Ver.C) (referred to as BTS3900). It describes the configurations, functions, and specifications of the subracks, boards, and modules, and the details such as cable types, cable connections, and connector specifications.

Product Versions The following table lists the product versions related to this document. Product Name

Product Version

BTS3900

V100R007C00

BTS3900 WCDMA

V200R014C00

BTS3900 GSM

V100R014C00

BTS3900 LTE

V100R005C00

Intended Audience This document is intended for: l

System engineers

l

Base station installation engineers

l

Site maintenance engineers

Organization 1 Changes in BTS3900 (Ver.C) Hardware Description This chapter describes the changes in the BTS3900 (Ver.C) Hardware Description. 2 BTS3900 Cabinet Issue 07 (2012-12-30)


ii


About This Document

This chapter describes the exteriors, boards, modules, and configurations of the BTS3900 cabinet, providing reference for planning and deploying the BTS3900. 3 Modules in the BTS3900 Cabinet This chapter describes the modules in the BTS3900 cabinet such as the RFU, RRU, BBU3900, and EMU. 4 Power Distribution Scheme and Power Devices of the BTS3900 Cabinet This section describes the input voltage range, configurations of upper-level circuit breakers and power cables, power distribution scheme, and components in the power system of the BTS3900 cabinet. 5 Monitoring Scheme and Monitoring Devices of the BTS3900 Cabinet 6 Components in the BTS3900 Cabinet This section describes the components in the BTS3900. 7 BTS3900 Cables The BTS3900 cables consist of the PGND cable, power cable, transmission cable, CPRI cable, signal cable, and RF cable.

Conventions Symbol Conventions The symbols that may be found in this document are defined as follows. Symbol

Description Indicates a hazard with a high level or medium level of risk which, if not avoided, could result in death or serious injury. Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation that, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. Indicates a tip that may help you solve a problem or save time. Provides additional information to emphasize or supplement important points of the main text.

General Conventions The general conventions that may be found in this document are defined as follows. Issue 07 (2012-12-30)


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About This Document

Convention

Description

Times New Roman

Normal paragraphs are in Times New Roman.

Boldface

Names of files, directories, folders, and users are in boldface. For example, log in as user root.

Italic

Book titles are in italics.

Courier New

Examples of information displayed on the screen are in Courier New.

Command Conventions The command conventions that may be found in this document are defined as follows. Convention

Description

Boldface

The keywords of a command line are in boldface.

Italic

Command arguments are in italics.

[]

Items (keywords or arguments) in brackets [ ] are optional.

{ x | y | ... }

Optional items are grouped in braces and separated by vertical bars. One item is selected.

[ x | y | ... ]

Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected.

{ x | y | ... }*

Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected.

[ x | y | ... ]*

Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected.

GUI Conventions The GUI conventions that may be found in this document are defined as follows. Convention

Description

Boldface

Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.

>

Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.

Keyboard Operations The keyboard operations that may be found in this document are defined as follows. Issue 07 (2012-12-30)


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About This Document

Format

Description

Key

Press the key. For example, press Enter and press Tab.

Key 1+Key 2

Press the keys concurrently. For example, pressing Ctrl+Alt +A means the three keys should be pressed concurrently.

Key 1, Key 2

Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.

Mouse Operations The mouse operations that may be found in this document are defined as follows.

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Action

Description

Click

Select and release the primary mouse button without moving the pointer.

Double-click

Press the primary mouse button twice continuously and quickly without moving the pointer.

Drag

Press and hold the primary mouse button and move the pointer to a certain position.


v


Contents

Contents About This Document.....................................................................................................................ii 1 Changes in BTS3900 (Ver.C) Hardware Description..............................................................1 2 BTS3900 Cabinet............................................................................................................................7 2.1 Exterior of the BTS3900 Cabinet.......................................................................................................................8 2.2 Configurations of the BTS3900 Cabinet............................................................................................................8 2.3 Application Scenario of the BTS3900 Cabinet................................................................................................11 2.3.1 Application Scenario of the BTS3900 Cabinet (Only RFUs Configured)..............................................11 2.3.2 Application Scenario of the BTS3900 Cabinet (RRUs and RFUs Configured)......................................15 2.4 BTS3900 Engineering Specifications...............................................................................................................16

3 Modules in the BTS3900 Cabinet.............................................................................................18 3.1 RFU..................................................................................................................................................................19 3.1.1 GRFU.......................................................................................................................................................19 3.1.2 DRFU.......................................................................................................................................................22 3.1.3 WRFU......................................................................................................................................................26 3.1.4 WRFUd....................................................................................................................................................30 3.1.5 WRFUe....................................................................................................................................................33 3.1.6 MRFU......................................................................................................................................................37 3.1.7 MRFUd....................................................................................................................................................41 3.1.8 MRFUe....................................................................................................................................................45 3.1.9 LRFU.......................................................................................................................................................48 3.1.10 LRFUe...................................................................................................................................................52 3.1.11 CRFUd...................................................................................................................................................55 3.2 RRU..................................................................................................................................................................59 3.3 BBU3900..........................................................................................................................................................59 3.3.1 BBU3900.................................................................................................................................................60 3.3.2 BBU3900 Functions................................................................................................................................61 3.3.3 BBU3900 Technical Specifications.........................................................................................................61 3.3.4 BBU3900 Slot Assignment.....................................................................................................................61 3.3.5 GTMU.....................................................................................................................................................88 3.3.6 WMPT.....................................................................................................................................................95 3.3.7 UMPT....................................................................................................................................................101 3.3.8 LMPT.....................................................................................................................................................109 Issue 07 (2012-12-30)


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Contents

3.3.9 WBBP....................................................................................................................................................113 3.3.10 LBBP...................................................................................................................................................119 3.3.11 FAN.....................................................................................................................................................125 3.3.12 UPEU...................................................................................................................................................127 3.3.13 UEIU....................................................................................................................................................130 3.3.14 UTRP...................................................................................................................................................131 3.3.15 USCU...................................................................................................................................................139 3.3.16 UBRI....................................................................................................................................................143 3.3.17 UCIU...................................................................................................................................................145 3.4 GATM............................................................................................................................................................148 3.5 EMU...............................................................................................................................................................149

4 Power Distribution Scheme and Power Devices of the BTS3900 Cabinet.....................150 4.1 Configurations of the Upper-Level Circuit Breakers and Power Cables.......................................................151 4.2 Cabinet Power Distribution............................................................................................................................153 4.3 Power Equipment (AC/DC)............................................................................................................................154 4.3.1 Structure of the Power Equipment AC/DC...........................................................................................154 4.3.2 PMU.......................................................................................................................................................155 4.3.3 PSU (AC/DC)........................................................................................................................................158 4.3.4 Power Subrack (AC/DC).......................................................................................................................160 4.3.5 DCDU-11A............................................................................................................................................161

5 Monitoring Scheme and Monitoring Devices of the BTS3900 Cabinet..........................164 5.1 Monitoring Principles of the Cabinet.............................................................................................................165 5.2 Customized Alarm Inputs...............................................................................................................................166 5.3 Monitoring Boards in the BTS3900 Cabinet..................................................................................................168

6 Components in the BTS3900 Cabinet....................................................................................169 6.1 Fan Assembly.................................................................................................................................................170 6.2 ELU................................................................................................................................................................172

7 BTS3900 Cables..........................................................................................................................173 7.1 List of BTS3900 Cables.................................................................................................................................175 7.2 Cable Connections..........................................................................................................................................180 7.2.1 Power Cable Connections......................................................................................................................180 7.2.2 Transmission Cable Connections..........................................................................................................182 7.2.3 CPRI Cable Connections.......................................................................................................................193 7.2.4 RF Cable Connections...........................................................................................................................207 7.2.5 Inter-BBU Signal Cable Connections....................................................................................................233 7.2.6 Monitoring Signal Cable Connections..................................................................................................235 7.3 Power Cables..................................................................................................................................................237 7.3.1 Input Power Cable for the Cabinet........................................................................................................237 7.3.2 DCDU-11A Power Cable......................................................................................................................239 7.3.3 BBU Power Cable.................................................................................................................................239 7.3.4 Power Cable for the FAN Assembly.....................................................................................................240 Issue 07 (2012-12-30)


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7.3.5 RFU Power Cable..................................................................................................................................241 7.3.6 GATM Power Cable..............................................................................................................................242 7.4 BTS3900 Transmission Cable........................................................................................................................242 7.4.1 E1/T1 Cable...........................................................................................................................................243 7.4.2 FE/GE Ethernet Cable...........................................................................................................................246 7.4.3 FE/GE Fiber Optic Cable......................................................................................................................247 7.4.4 Interconnection Cable Between the FE Electrical Ports........................................................................248 7.4.5 Interconnection Cable Between FE Optical Ports.................................................................................248 7.5 Signal Cables..................................................................................................................................................249 7.5.1 Monitoring Signal Cable for the PMU..................................................................................................249 7.5.2 Monitoring Signal Cable for the Fan Assembly....................................................................................250 7.5.3 Fan Assembly Cascade Signal Cable....................................................................................................250 7.5.4 Monitoring Signal Cable for the EMU..................................................................................................251 7.5.5 Monitoring Signal Cable for the GATM...............................................................................................252 7.5.6 BBU interconnection signal cable.........................................................................................................253 7.5.7 BBU Alarm Cable.................................................................................................................................255 7.5.8 GPS Clock Signal Cable........................................................................................................................256 7.5.9 GPS Jumper...........................................................................................................................................257 7.5.10 Signal Cable for the ELU....................................................................................................................257 7.5.11 Cable Between two Combined Base Stations......................................................................................258 7.5.12 Adapter Used for Local Maintenance..................................................................................................260 7.6 BTS3900 RF Cable.........................................................................................................................................261 7.6.1 RF Jumper..............................................................................................................................................261 7.6.2 Inter-RFU RF Signal Cable...................................................................................................................262 7.7 CPRI Electrical Cable.....................................................................................................................................262 7.8 CPRI Fiber Optic Cable..................................................................................................................................263 7.9 PGND Cables.................................................................................................................................................266 7.10 Equipotential Cable......................................................................................................................................267

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1 Changes in BTS3900 (Ver.C) Hardware Description

Changes in BTS3900 (Ver.C) Hardware Description

This chapter describes the changes in the BTS3900 (Ver.C) Hardware Description.

07 (2012-12-30) This is the seventh commercial release. Compared with 06 (2012-11-10), no topic is added. Compared with 06 (2012-11-10), this issue incorporates the following changes: Content

Change Description

7.5.6 BBU interconnection signal cable

Modified the exterior and length of the BBU interconnection signal cable connecting WBBPf to WBBPf.

Compared with 06 (2012-11-10), no topic is deleted.

06 (2012-11-10) This is the sixth commercial release. Compared with 05 (2012-09-15), this issue includes the following new information: l

3.3.3 BBU3900 Technical Specifications

l

RF Cable Connections for Mixed RFU Configuration

Compared with 05 (2012-09-15), this issue incorporates the following changes:

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Content

Change Description

3.3.7 UMPT

Changed the description of indicators on the UMPT.

4.3.5 DCDU-11A

Added the technical specifications of DCDU-11A.


1



Content

Change Description

l 3.1.6 MRFU

Added the technical specifications of the RFUs.

l 3.1.7 MRFUd l 3.1.8 MRFUe l 3.1.2 DRFU l 3.1.1 GRFU l 3.1.3 WRFU l 3.1.4 WRFUd l 3.1.5 WRFUe l 3.1.9 LRFU l 3.1.10 LRFUe l 3.1.11 CRFUd

Compared with 05 (2012-09-15), no topic is deleted.

05 (2012-09-15) This is the fifth commercial release. Compared with issue 04 (2012-08-05), no topic is added. Compared with issue 04 (2012-08-05), this issue incorporates the following changes: Topic

Change Description

7.6.1 RF Jumper

Added the length of the cable.

7.9 PGND Cables

Changed the length of the cable.

Compared with issue 04 (2012-08-05), no information is deleted.

04 (2012-08-05) This is the fourth commercial release. Compared with issue 03 (2012-06-29), no topic is added. Compared with issue 03 (2012-06-29), this issue incorporates the following changes:

Issue 07 (2012-12-30)

Topic

Change Description

3.3.5 GTMU

Added the TRX specifications of the board.

3.3.10 LBBP

Added the information of combined bandwidths.

3.3.14 UTRP

Deleted the UTRPb4 used in LTE mode. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

2



Topic

Change Description

Transmission Cable Connections for a Single-Mode Base Station 4.1 Configurations of the Upper-Level Circuit Breakers and Power Cables

Deleted the information of MRFU V3.

Compared with issue 03 (2012-06-29), this issue deletes the following topics: l

MRFU V3

l

RF Cable Connections for MRFU V3

03 (2012-06-29) This is the third commercial release. Compared with issue 02 (2012-06-20), this issue adds the following topics: l

3.1.5 WRFUe

l

RF Cable Connections for WRFUe

Compared with issue 02 (2012-06-20), this issue incorporates the following changes: Topic

Change Description

3.3.15 USCU

Added the information of the USCUb14 and USCUb22.

l 7.3.1 Input Power Cable for the Cabinet

Added the length of the cables.

l 7.9 PGND Cables l 7.4.1 E1/T1 Cable l 7.4.2 FE/GE Ethernet Cable l 7.4.3 FE/GE Fiber Optic Cable l 7.5.7 BBU Alarm Cable l 7.5.9 GPS Jumper l 7.5.6 BBU interconnection signal cable


02 (2012-06-20) This is the second commercial release. Compared with issue 01 (2012-04-25), no topic is added. Compared with issue 01 (2012-04-25), this issue incorporates the following changes: Issue 07 (2012-12-30)


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Topic

Change Description

3.3.9 WBBP

Changed the description of the indicators on the boards.

3.3.10 LBBP 3.3.15 USCU l CPRI Cable Connections for a GSM Only Base Station

Added the CPRI cable connections of RFU+RRU configurations in each mode.

l CPRI Cable Connections for a UMTS Only Base Station l CPRI Cable Connections for an LTE Only Base Station l CPRI Cable Connections for a GSM+UMTS Base Station l CPRI Cable Connections for a GSM+LTE Base Station l CPRI Cable Connections for a UMTS+LTE Base Station l CPRI Cable Connections for a Triple-Mode Base Station


01 (2012-04-25) This is the first commercial release. Compared with Draft B (2012-03-20), no topic is added. Compared with Draft B (2012-03-20), this issue incorporates the following changes: Content

Change Description

3.3.6 WMPT

Changed the description of the indicators on the boards.

3.3.7 UMPT 3.3.5 GTMU 3.3.8 LMPT 3.3.9 WBBP 3.3.11 FAN 3.3.12 UPEU 3.3.14 UTRP 3.3.15 USCU

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Content

Change Description

3.3.17 UCIU 3.3.10 LBBP 3.3.16 UBRI 3.3.10 LBBP

Added the cell bandwidth of the LBBP.


Changed the exterior of the inter-BBU signal cable.

Transmission Cable Connections for a Triple-Mode Base Station

Added Transmission Cable Connections in the GU (BBU0) + LO (BBU1) (BBUs cascaded) scenario.

4.3.3 PSU (AC/DC)

Modified the description of Protection LED on the panel of PSU.

Compared with Draft B (2012-03-20), no topic is deleted.

Draft B (2012-03-20) This is the Draft release. Compared with Draft A (2012-02-10), this issue adds the following topics: l

3.1.11 CRFUd

l

RF Cable Connections for CRFUd

Compared with Draft A (2012-02-10), this issue incorporates the following changes: Content

Change Description

2.2 Configurations of the BTS3900 Cabinet

Updated the figures of cabinets.

2.3.1 Application Scenario of the BTS3900 Cabinet (Only RFUs Configured)

Optimized the figures of cabinet configuration.

2.3.2 Application Scenario of the BTS3900 Cabinet (RRUs and RFUs Configured) 6.2 ELU

Updated the figure of ELU.

4.3.3 PSU (AC/DC)

Modified the description of Protection LED on the panel of PSU.

The whole document

Made some editorial changes.

Compared with Draft A (2012-02-10), no topic is deleted.

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Draft A (2012-02-10) This is the Draft release. Compared with MBTS V100R004C00, WCDMA-NodeB V200R013C00, GSM-BTS V100R013C00, eNodeB V100R004C00, this issue adds the following topics: l

2.4 BTS3900 Engineering Specifications

l

Application Scenario of the BTS3900 Cabinet (RRUs and RFUs Configured)

l

3.2 RRU

l

3.3.7 UMPT

l

7.5.11 Cable Between two Combined Base Stations

l

7.5.12 Adapter Used for Local Maintenance

l

CPRI Cable Connections for a Triple-Mode Base Station

l


Compared with MBTS V100R004C00, WCDMA-NodeB V200R013C00, GSM-BTS V100R013C00, eNodeB V100R004C00, this issue incorporates the following change: Content

Change Description

The whole document

Reorganized the document and optimized some descriptions and figures.

Compared with MBTS V100R004C00, WCDMA-NodeB V200R013C00, GSM-BTS V100R013C00, eNodeB V100R004C00, no topic is deleted.

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2 BTS3900 Cabinet

2

BTS3900 Cabinet

About This Chapter This chapter describes the exteriors, boards, modules, and configurations of the BTS3900 cabinet, providing reference for planning and deploying the BTS3900. 2.1 Exterior of the BTS3900 Cabinet The BTS3900 cabinet is a vertical cabinet, which is designed in compliance with the IEC297 standard. 2.2 Configurations of the BTS3900 Cabinet This section describes the interior and components of the BTS3900 cabinet. 2.3 Application Scenario of the BTS3900 Cabinet The BTS3900 supports various cabinets to meet the requirements of different RFU configurations and space required for customer equipment. In different scenarios, BTS3900 can be configured with only RFUs or with both RFUs and the RRUs. 2.4 BTS3900 Engineering Specifications BTS3900 engineering specifications include input power specifications and equipment specifications.

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2 BTS3900 Cabinet

2.1 Exterior of the BTS3900 Cabinet The BTS3900 cabinet is a vertical cabinet, which is designed in compliance with the IEC297 standard. Figure 2-1 shows the exterior of the BTS3900 cabinet. Figure 2-1 Exterior of the BTS3900 cabinet

2.2 Configurations of the BTS3900 Cabinet This section describes the interior and components of the BTS3900 cabinet.

Interior of the BTS3900 DC Cabinet The BTS3900 DC (-48 V) cabinet consists of RFUs, Fan Assembly, BBU3900, and DCDU-11A. Customized equipment can be installed in the remaining space. Figure 2-2 shows the interior and Table 2-1 list components of the BTS3900 DC cabinet.

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2 BTS3900 Cabinet

Figure 2-2 Interior of the BTS3900 DC cabinet

Table 2-1 Components in the BTS3900 DC cabinet

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No.

Module

Optional or Mandator y

Maximum Number Configure d in a Single Cabinet

Remark

1

Filler panel

Optional

-

To ensure normal ventilation of the cabinet, insert a filler panel into the slot in the RFU subrack that is not configured with an RFU.

2

RFU

Mandatory

6

The RFU modulates and demodulates baseband signals and RF signals, processes data, and combines and divides signals.

3

Fan Assembl y

Mandatory

1

The fan dissipates the heat from the cabinet.

4

Air intake vent

-

-

-

5

BBU390 0

Mandatory

1

The BBU3900 processes the baseband signals and enables interaction between the base station and the BSC or RNC.

6

DCDU11A

Mandatory

1

DCDU-11A provides DC power to all components in the cabinet.


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2 BTS3900 Cabinet

No.

Module



Remark

-

Remaini ng space

-

-

There is a 3 U remaining space in the BTS3900 cabinet (-48 V DC) for customized equipment. The BTS3900 cabinet (-48 V DC) can supply power to customized transmission equipment. The customized equipment must be able to work properly at a temperature equal to or higher than 55°C.

Interior of the BTS3900 AC Cabinet The BTS3900 AC cabinet consists of RFUs, fan box, BBU3900, and DCDU-11A. The power system (AC/DC) can be installed in the cabinet. Figure 2-3 shows the interior and Table 2-2 list components of the BTS3900 AC cabinet. Figure 2-3 Interior of the BTS3900 AC cabinet

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2 BTS3900 Cabinet

Table 2-2 Components in the BTS3900 AC cabinet No.

Module



Remark

1

Filler panel

Optional

-

To ensure normal ventilation of the cabinet, insert a filler panel into the slot in the RFU subrack that is not configured with an RFU.

2

RFU

Mandatory

6

The RFU modulates and demodulates baseband signals and RF signals, processes data, and combines and divides signals.

3

Fan Assembl y

Mandatory

1

The fan dissipates the heat from the cabinet.

4

Air intake vent

-

-

-

5

BBU390 0

Mandatory

1

The BBU3900 processes the baseband signals and enables interaction between the base station and the BSC or RNC.

6

DCDU11A

Mandatory

1

-

7

Power equipme nt (AC/ DC)

Optional

1

The power system (AC/DC) converts external 220 V AC single-phase power, 220 V AC three-phase power, and 110 V AC dual-live-wire power into -48 V DC power and provides power for all components in the cabinet.

2.3 Application Scenario of the BTS3900 Cabinet The BTS3900 supports various cabinets to meet the requirements of different RFU configurations and space required for customer equipment. In different scenarios, BTS3900 can be configured with only RFUs or with both RFUs and the RRUs.

2.3.1 Application Scenario of the BTS3900 Cabinet (Only RFUs Configured) This section describes the configurations of a single-mode, dual-mode, and triple-mode base station if only RFUs are configured in a BTS3900 cabinet. Issue 07 (2012-12-30)


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2 BTS3900 Cabinet

Cabinet Configuration Rules l

A maximum of two cabinets can be configured in a site and a maximum of 12 RFUs can be configured in two cabinets of a site. If the number of RFUs exceeds 12, an extra site is required.

l

In a single-mode or dual-mode scenario, only one BBU is configured.

l

In a triple-mode scenario, two BBUs are configured.

l

In a triple-mode scenario, BBU 0 is the root BBU and BBU 1 is the leaf BBU.

l

If cabinets are stacked, the BTS3900 (-48 V DC) cabinet is used preferentially. In special scenarios, for example, the space is insufficient, AC cabinets can be used. However, the highest operating temperature of the cabinets is 50°C.

Cabinet Configurations for a Single- or Dual-Mode Scenario Figure 2-4 and Figure 2-5 show the application scenarios of the BTS3900 in single mode or dual mode. Figure 2-4 BTS3900 in a single- or dual-mode scenario

1. BTS3900 DC (-48V) (single cabinet)

2. BTS3900 AC (single cabinet)

3. BTS3900 DC (-48V) (side-by-side installation)

4. BTS3900 AC (side-by-side installation)

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2 BTS3900 Cabinet

Figure 2-5 BTS3900 DC (-48 V) in a single- or dual-mode scenario (stack installation)

Cabinet Configurations in a Triple-Mode Scenario Figure 2-6 and Figure 2-7 show the application scenario of the BTS3900 cabinet in a triplemode scenario.

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2 BTS3900 Cabinet

Figure 2-6 BTS3900 in a triple-mode scenario (side-by-side installation)

Figure 2-7 BTS3900 DC (-48 V) in a triple-mode scenario (stack installation)

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2.3.2 Application Scenario of the BTS3900 Cabinet (RRUs and RFUs Configured) This section describes the configurations of a single-mode, dual-mode, and triple-mode base station when BTS3900 is configured with both RRUs and RFUs.

Rules for Configuring the Cabinet l

In a single-mode or dual-mode scenario, the BTS3900 supports a maximum configuration of six RFUs with six RRUs. An additional site is needed when configuration exceeds six RFUs and six RRUs.

l

In a triple-mode scenario, the BTS3900 supports a maximum configuration of twelve RFUs with six RRUs. An additional site is needed when configuration exceeds six RFUs and six RRUs.

l

Only the BTS3900 (-48 V DC) cabinet applies to the scenario where both the RRUs and RFUs are configured.

l

The RRUs are connected to the BTS3900 through optical cables, and the RRUs' power is supplied by a DCDU-11B installed on a wall.

l

In a single-mode or dual-mode scenario, only one BBU is configured.

l

In a triple-mode scenario, two BBUs are configured. BBU 0 is the root BBU and BBU 1 is the leaf BBU.

Cabinet Configurations for a Single- or Dual-Mode Base Station Figure 2-8 shows the configurations of the BTS3900 in single mode or dual mode. Figure 2-8 BTS3900 cabinet in single mode or dual mode

Cabinet Configurations for a Triple-Mode Base Station Figure 2-9 shows the configurations of the BTS3900 cabinet in a triple-mode scenario.

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2 BTS3900 Cabinet

Figure 2-9 BTS3900 cabinet in triple mode

2.4 BTS3900 Engineering Specifications BTS3900 engineering specifications include input power specifications and equipment specifications.

Input Power Specifications BTS3900 supports -48 V DC, +24 V DC, 110 V AC, and 220 V AC power input. Table 2-3 lists the input power specifications. Table 2-3 Input power specifications of a BTS3900 Input Power

Voltage Range

-48V DC

-38.4 V DC to -57 V DC

220V AC (single-phase)

176 V AC to 290 V AC

220V AC (three-phase)

176 V AC to 290 V AC

110V AC (dual-live-wire)

90 V AC to 135 V AC

Equipment Specifications Table 2-4 lists the equipment specifications of a BTS3900. Table 2-4 Equipment specifications of a BTS3900 Item

Specification

Dimension (H x W x D)

900mm x 600mm x 450mm Base: 40mm x 600mm x 420mm

Weight Issue 07 (2012-12-30)

≤160kg (full configuration) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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2 BTS3900 Cabinet

NOTE

For other engineering specifications of BTS3900, please refer to 3900 Series Base Station Technical Description.

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3 Modules in the BTS3900 Cabinet

3

Modules in the BTS3900 Cabinet

About This Chapter This chapter describes the modules in the BTS3900 cabinet such as the RFU, RRU, BBU3900, and EMU. 3.1 RFU The radio frequency unit (RFU) modulates and demodulates baseband signals and RF signals, processes data, combines and divides signals. The types of RFUs vary according to different modes. 3.2 RRU The Radio Remote Unit (RRU) converts and forwards signals between the BBU and the antenna system. 3.3 BBU3900 This section presents the exterior of the BBU3900 and describes the boards in the BBU3900 and their panels, functions, indicators, ports, and engineering specifications. 3.4 GATM The GSM Antenna and TMA control Module (GATM) controls the antenna and TMA. 3.5 EMU The Environment Monitoring Unit (EMU) is an environmental monitoring device that monitors environmental conditions of the equipment room.

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3.1 RFU The radio frequency unit (RFU) modulates and demodulates baseband signals and RF signals, processes data, combines and divides signals. The types of RFUs vary according to different modes.

3.1.1 GRFU GSM radio frequency unit (GRFU) is an RF unit of GSM radio filter and applies to GSM only scenario.

Panel GRFUs fall into three types: GRFU V1, GRFU V2, and GRFU V2a. The three types of GRFUs can be identified by their labels. As shown in Figure 3-1, there is "V0" or "V1" on the label of a GRFU V1, there is "V2" on the label of a GRFU V2, and there is "V2a" on the label of a GRFU V2a. Figure 3-1 GRFU panel

Function A GRFU performs modulation and demodulation between baseband signals and radio frequency (RF) signals, processes data, and combines and divides signals. Issue 07 (2012-12-30)


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In addition,the GRFU has the following functions: l

Converts the direct frequency conversion technology, modulates the baseband signals for the GSM TX band. After filtering and amplification, the baseband signals are transmitted to the antenna system through the duplexer.

l

Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After an amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the baseband unit (BBU) for further processing.

l

Provides power control and VSWR detection.

l

Performs reverse power detection.

l

Synthesizes frequencies and tests loops.

l

Generates the common public radio interface (CPRI) clock, recovers the CPRI clock from loss of synchronization, and detects alarms.

Principles A GRFU consists of a high-speed interface unit, signal processing unit, power amplifier, and dual-duplexer. Figure 3-2 shows the logical structure of the GRFU. Figure 3-2 Logical structure of the GRFU

Indicators The six indicators on the GRFU panel indicate the operating status of the GRFU. Table 3-1 describes the indicators on the GRFU panel. Table 3-1 Indicators on the GRFU Panel

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Indicato r

Color

Status

Description

RUN

Green

Steady on

There is power supply, but the module breaks down or is verifying the software version.


20



Indicato r

ALM

ACT

VSWR

CPRI0

CPRI1

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Color

Red

Green

Red

Red and green

Red and green

Status

Description

Blinking (on for 1s and off for 1s)

The module works properly.

Blinking (on for 0.125s and off for 0.125s)

The module is loading software.

Off

There is no power supply, or the module breaks down.

Steady on

Alarms (excluding VSWR alarms) are generated, and the module must be replaced.


Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, the necessity for module replacement is uncertain.

Off

No alarm (excluding VSWR alarms) is generated.

Steady on

The module works properly with the TX channel enabled.


The module works properly with the TX channel disabled.

Steady on

The VSWR alarm is generated on the ANT_TX/RXA port.

Off

No VSWR alarm is generated.

Steady green

The CPRI link is available.

Steady red

The reception of the optical module is abnormal, and an alarm is generated.

Blinking red (on for 1s and off for 1s)

The CPRI link has a loss-of-lock error.

Off

The small form-factor pluggable (SFP) module is not properly installed, or the optical module is powered off.

Steady green


Steady red




Off

The SFP module is not properly installed, or the optical module is powered off.


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Ports Table 3-2 describes the ports on the GRFU panel. Table 3-2 Ports on the GRFU Panel Port Type

Silkscree n

Connector Type

Description

RF port

ANT_RX B

DIN connector

Connects to the antenna system

ANT_TX/ RXA

DIN connector

Connects to the antenna system

CPRI0

SFP female connector

Connects to the BBU, or an upper-level RFU in the cascading mode

CPRI1


Connects to a lower-level RFU during the cascading

Interconnectio n port for receiving RF signals

RX_INB

QMA female connector

Receives the diversity signals

RX_OUT A


Transmits the main signals

Power supply port

PWR

3V3 power connector

Feeds in power

Monitoring port

MON

RJ45 connector

Port for monitoring and commissioning

CPRI port

Technical Specifications This section describes the technical specifications of the GRFU, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.2 DRFU Double radio frequency unit (DRFU) is an RF unit of GSM radio filter and applies to GSM only scenario.

Panel Figure 3-3 shows the DRFU panel.

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Figure 3-3 DRFU panel

Function The DRFU performs modulation, demodulation, data processing, and combining and dividing for baseband signals and radio frequency (RF) signals. In addition, the DRFU provides the following functions: l

Converts the direct frequency conversion technology, modulates the baseband signals for the GSM TX band. After filtering and amplification, the baseband signals are transmitted to the antenna system through the duplexer.

l

Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to a baseband unit (BBU) for further processing.

l

Performs power control.

l


l

Synthesizes frequencies and tests loops.

l


A DRFU consists of a high-speed interface unit, signal processing unit, power amplifier, and dual-duplexer. Figure 3-4 shows the logical structure of the DRFU.

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Figure 3-4 Logical structure of the DRFU

Indicators There are six indicators on the DRFU panel, indicating its operating status. Table 3-3 describes the status of the indicators on the DRFU. Table 3-3 Status of the Indicators on the DRFU Indicator

Color

Status

Description

RUN

Green

Steady on






Off


Steady on




Off


Steady on


ALM

ACT

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Red

Green


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Indicator

VSWR

CPRI0

CPRI1

Color

Red

Red and green

Red and green

Status

Description



Steady on

The VSWR alarm is generated on the ANT1 port.


The VSWR alarm is generated on the ANT2 port.


The VSWR alarm is generated on the ANT1 and ANT2 ports.

Off


Steady green


Steady red




Off


Steady green


Steady red




Off


Ports Table 3-4 describes the ports on the DRFU. Table 3-4 Ports on the DRFU

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Port Type

Silkscreen on the Port

Connector Type

Description

Port for transceiving RF signals

ANT1

DIN female connector

Connects to the antenna system.

ANT2


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Port Type

Silkscreen on the Port

Connector Type

Description

CPRI port

CPRI0


Connects to a lower-level radio frequency unit (RFU) during the cascading.

CPRI1 Interconnecti on port for receiving RF signals

Power supply port

RX1/IN

Connects to the BBU, or an upper-level RFU in the cascading mode. QMA female connector

Receives the diversity signals in antenna channel 1.

RX1/OUT

Transmits the diversity signals in antenna channel 1.

RX2/IN

Receives the diversity signals in antenna channel 2.

RX2/OUT

Transmits the diversity signals in antenna channel 2.

PWR

3V3 power connector

Feeds in power.

Technical Specifications This section describes the technical specifications of the DRFU, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.3 WRFU WCDMA Radio Frequency (WRFU) is an RF unit of WCDMA radio filter and applies to UMTS only scenario.

Panel Figure 3-5 shows the panel of the WRFU.

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Figure 3-5 Panel of the WRFU

Functions The functions of the WRFU are as follows: l

Implements the direct frequency conversion technique in the transmit channel. The baseband signals are modulated to WCDMA RF signals. After being filtered and amplified or being combined, the RF signals are transmitted through the duplex filter to the antenna for radio transmission.

l

Receives UL RF signals from the antenna system and then down-converts the received signals to IF signals. After amplification, analog-to-digital conversion, digital downconversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the BBU for further processing.

l

Implements power control and Voltage Standing Wave Ratio (VSWR) detection

l

Provides reverse power detection

l

Provides frequency synthesis and loopback test

l

Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and detects alarms

l

Supports 40 W (2 carriers) and 80 W (4 carriers) power outputs

Principle The WRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplex unit. Figure 3-6 shows the principle of the WRFU. Issue 07 (2012-12-30)


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Figure 3-6 Principle of the WRFU

LEDs Table 3-5 describes the LEDs on the WRFU panel. Table 3-5 LEDs on the WRFU panel Label RUN

ALM

ACT

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Color Green

Red

Green

State

Description

ON


OFF






ON




OFF


ON





28



Label VSWR

CPRI0

CPRI1

Color Red

Red/Green

Red/Green

State

Description

ON (red)

VSWR-related alarms are generated on the ANT_TX/RXA port.

OFF (red)


On (green)

The CPRI links are normal.

On (red)




OFF

The SFP is out of position, or the optical module is powered off.

On (green)


On (red)




OFF

The SFP is out of position, or the optical module is powered off.

Ports Table 3-6 describes the ports on the WRFU panel. Table 3-6 Ports on the WRFU panel Port

Label

Connector

Description

RF port

ANT_RXB

DIN connector

RF RX port for connecting to the antenna system

ANT_TX/ RXA

DIN connector

RF TX/RX port for connecting to the antenna system

CPRI0


Connected to the BBU, or the upper-level WRFU during the cascading

CPRI1


Connected to the lower-level WRFU during the cascading

RX_INB


Receives the diversity signals.

RX_OUTA


Transmits the main signals.

CPRI

Interconnectio n port for RF RX signals

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Port

Label

Connector

Description

Power supply socket

PWR

3V3 power connector

Feeding power

Monitoring port

MON

RJ45 connector


Technical Specifications This section describes the technical specifications of the WRFU, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.4 WRFUd WCDMA Radio Frequency Unit Type D (WRFUd) is an RF unit of WCDMA radio filter and applies to UMTS only scenario.

Panel Figure 3-7 shows a WRFUd panel. Figure 3-7 WRFUd panel

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Functions The functions of the WRFUd are as follows: l

Implements the direct frequency conversion technique in the TX channel. The baseband signals are modulated to WCDMA RF signals. After being filtered and amplified or being combined, the RF signals are transmitted through the duplex filter to the antenna for radio transmission.

l

Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the BBU for further processing.

l

Implements power control and Voltage Standing Wave Ratio (VSWR) detection.

l


l

Synthesizes frequencies and loop tests.

l

Generates the CPRI clock, recovers the CPRI clock from loss of synchronization, and detects alarms.

Principle The WRFUd consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 3-8 shows the logical structure of the WRFUd. Figure 3-8 Logical structure of the WRFUd

LEDs Table 3-7 describes the LEDs on the WRFUd panel. Table 3-7 LEDs on the WRFUd panel

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LED

Color

Status

Description

RUN

Green

On



31



LED

ALM

ACT

VSWR

CPRI0

CPRI1

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Color

Red

Green

Red

Red and green

Red and green

Status

Description



Off




On




Off


On




On



VSWR-related alarms are generated on the ANT_TX/RXB port.


VSWR-related alarms are generated on both the ANT_TX/RXA and ANT_TX/ RXB ports.

Off

No VSWR-related alarm is generated.

On (green)


On (red)




Off


On (green)


On (red)



32



LED

Color

Status

Description



Off


Ports Table 3-8 describes the ports on the WRFUd panel. Table 3-8 Ports on the WRFUd panel Port

Label

Connector

Description

RF port

ANT_TX/ RXB

DIN connector


ANT_TX/ RXA

DIN connector

CPRI0


Port for connecting to the BBU, or the upper-level WRFUd during the cascading

CPRI1


Port for connecting to the lower-level WRFUd during the cascading


RX_INB


Input port of diversity signals in the antenna channel

RX_OUTA


Output port of diversity signals in the antenna channel

Power supply socket

PWR

3V3 power connector

Socket for feeding power

Monitoring port

MON

RJ45 connector


CPRI port

Technical Specifications This section describes the technical specifications of the WRFUd, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.5 WRFUe WCDMA Radio Frequency Unit Type E (WRFUe) is an RF unit of WCDMA radio filter and applies to UMTS only scenario. Issue 07 (2012-12-30)


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Panel Figure 3-9 shows a WRFUe panel. Figure 3-9 WRFUe panel

Functions The functions of the WRFUe are as follows: l

Implements the direct frequency conversion technique in the TX channel. The baseband signals are modulated to WCDMA RF signals. After being filtered and amplified or being combined, the RF signals are transmitted through the duplex filter to the antenna for radio transmission.

l

Receives uplink RF signals from the antenna system and then down-converts the received signals to intermediate frequency (IF) signals. After amplification, analog-to-digital conversion, digital down-conversion, matched filtering, automatic gain control (AGC), the IF signals are sent to the BBU for further processing.

l

Implements power control and Voltage Standing Wave Ratio (VSWR) detection.

l


l

Synthesizes frequencies and loop tests.

l


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Principle The WRFUe consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 3-10 shows the logical structure of the WRFUe. Figure 3-10 Logical structure of the WRFUe

LEDs Table 3-9 describes the LEDs on the WRFUe panel. Table 3-9 LEDs on the WRFUe panel LED

Color

Status

Description

RUN

Green

On




Off




On




Off


ALM

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Red


35



LED

Color

Status

Description

ACT

Green

On




On






Off


On (green)


On (red)




Off


On (green)


On (red)




Off


VSWR

CPRI0

CPRI1

Red

Red and green

Red and green

Ports Table 3-10 describes the ports on the WRFUe panel. Table 3-10 Ports on the WRFUe panel

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Port

Label

Connector

Description

RF port

ANT_TX/ RXB

DIN connector



36



Port

Label

Connector

ANT_TX/ RXA

DIN connector

CPRI0


Port for connecting to the BBU, or the upper-level WRFUe during the cascading

CPRI1


Port for connecting to the lower-level WRFUe during the cascading


RX_INB


Input port of diversity signals in the antenna channel

RX_OUTA


Output port of diversity signals in the antenna channel

Power supply socket

PWR

3V3 power connector

Socket for feeding power

Monitoring port

MON

RJ45 connector


CPRI port

Description

Technical Specifications This section describes the technical specifications of the WRFUe, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.6 MRFU Multi-Mode Radio Frequency Unit (MRFU) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

Panel MRFUs fall into three types: MRFU V1, MRFU V2, and MRFU V2a. The three types of MRFUs can be identified by their labels. As shown in Figure 3-11, there is "V0" or "V1" on the label of a MRFU V1, there is "V2" on the label of a MRFU V2, and there is "V2a" on the label of a MRFU V2a.

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Figure 3-11 MRFU Panel

Function The functions of MRFU are as follows: l

Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals and then transmits the signals to the antenna through the duplexer.

l

Receives radio frequency (RF) signals from the antenna system, down-converts the signals to IF signals, and then transmits them to the baseband unit (BBU) after an amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and Digital Automatic Gain Control (DAGC).

l


l

Provides Voltage Standing Wave Ration (VSWR) detection.

l

Supplies power to the tower mounted amplifier (TMA) and controls the remote electrical tilt (RET) antenna.

l

Controls Digital Predistortion (DPD) based on feedback signals.

l


Principles A MRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplexer. Figure 3-12 shows the principle of the MRFU. Issue 07 (2012-12-30)


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Figure 3-12 Principle of the MRFU

Indicators Table 3-11 describes the indicators on the MRFU. Table 3-11 Indicators on the MRFU Indicato r

Color

Status

Description

RUN

Green

Steady on






Off


Steady on




Off


Steady on

The MRFU works properly with the TX channel enabled.

ALM

ACT

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Red

Green


39



Indicato r

VSWR

CPRI0

CPRI1

Color

Red

Red and green

Red and green

Status

Description


The MRFU works properly with the TX channel disabled.

Steady on

The VSWR alarm is generated on the ANT_TX/RXA port.

Off


Steady green


Steady red

The optical module fails to receive signals.



Off


Steady green


Steady red




Off


Ports Table 3-12 describes the ports on the MRFU. Table 3-12 Port on the MRFU Port Type RF port

CPRI port

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Silkscreen

Connector Type

Description

ANT_RXB

DIN connector


ANT_TX/ RXA

DIN connector


CPRI0


Connects to the BBU

CPRI1


Connects to the BBU


40



Port Type

Silkscreen

Connector Type

Description


RX_INB


Receives the diversity signals

RX_OUTA


Transmits the main signals

Power supply port

PWR

3V3 power connector

Feeding -48 V DC power

Monitoring port

MON

RJ45 connector


Technical Specifications This section describes the technical specifications of the MRFU, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.7 MRFUd Multi-Mode Radio Frequency Unit Type D (MRFUd) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

Panel Figure 3-13 shows a MRFUd panel. Figure 3-13 MRFUd panel

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Functions The functions of the MRFUd are as follows: l

Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals or combines the signals, and then transmits the signals to the antenna through the duplexer.

l

Receives RF signals from the antenna system, down-converts the signals to IF signals, and performs amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and digital automatic gain control (DAGC), and then transmits the signals to the BBU for further processing.

l


l


l

Supplies power to the TMA and controls the RET antenna.

l


l


Principle The MRFUd consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 3-14 shows the logical structure of the MRFUd. Figure 3-14 Logical structure of the MRFUd

LEDs Table 3-13 describes the LEDs on the MRFUd panel.

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Table 3-13 LEDs on the MRFUd panel LED

Color

Status

Description

RUN

Green

On






Off


On




Off


On




On






Off


On (green)


On (red)




Off


ALM

ACT

VSW R

CPRI 0

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Red

Green

Red

Red and green


43



LED

Color

Status

Description

CPRI 1

Red and green

On (green)


On (red)




Off


Ports Table 3-14 describes the ports on the MRFUd panel. Table 3-14 Ports on the MRFUd panel Port

Label

Connector

Description

RF port

ANT_TX/ RXB

DIN connector


ANT_TX/ RXA

DIN connector

CPRI0


Port for connecting to the BBU

CPRI1




RX_INB


Input port for diversity RX

RX_OUTA


Output port for main RX

Power supply socket

PWR

3V3 power connector

Socket for feeding -48 V DC power

Monitoring port

MON

RJ45 connector


CPRI port

Technical Specifications This section describes the technical specifications of the MRFUd, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

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3.1.8 MRFUe Multi-Mode Radio Frequency Unit Type E (MRFUe) is a type of RF unit that can work in multiple radio frequencies. It applies to scenarios such as GO, UO, LO, GU and GL.

Panel Figure 3-15 shows a MRFUe panel. Figure 3-15 MRFUe panel

Functions The functions of the MRFUe are as follows: l

Modulates and converts the signals to the TX band by up-converting the intermediate frequency (IF) signals, filters and amplifies the signals or combines the signals, and then transmits the signals to the antenna through the duplexer.

l

Receives RF signals from the antenna system, down-converts the signals to IF signals, and performs amplification, analog-to-digital conversion, digital down-conversion, matched filtering, and digital automatic gain control (DAGC), and then transmits the signals to the BBU for further processing.

l


l


l

Supplies power to the TMA and controls the RET antenna.

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l


l


Principle The MRFUe consists of the high-speed interface unit, signal processing unit, power amplifier (PA), and duplexer. Figure 3-16 shows the logical structure of the MRFUe. Figure 3-16 Logical structure of the MRFUe

LEDs Table 3-15 describes the LEDs on the MRFUe panel. Table 3-15 LEDs on the MRFUe panel LE D

Color

Status

Description

RU N

Green

On






Off


On




AL M

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Red


46



LE D

ACT

VS WR

CPR I0

CPR I1

Color

Green

Red

Red and green

Red and green

Status

Description

Off


On




On


Off


On (green)


On (red)




Off


On (green)


On (red)




Off


Ports Table 3-16 describes the ports on the MRFUe panel. Table 3-16 Ports on the MRFUe panel Port

Label

Connector

Description

RF port

ANT/ RXB

DIN connector


ANT_T X/RXA

DIN connector


CPRI0



CPRI port

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Port

Label

Connector

Description

CPRI1



Interconnection port for receiving RF signals

RX_IN B



RX_OU TA



Power supply socket

PWR

3V3 power connector

Socket for feeding -48 V DC power

Monitoring port

MON

RJ45 connector


Technical Specifications This section describes the technical specifications of the MRFUe, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.9 LRFU LTE Radio Frequency Unit (LRFU) is an RF unit of LTE Frenquency Division Duplex (FDD) and applies to LTE Only scenario.

Panel Figure 3-17 shows the panel of the LRFU.

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Figure 3-17 Panel of the LRFU

Functions The LRFU processes uplink and downlink services and controls and monitors internal boards or modules. Figure 3-18 shows the logical structure of the LRFU. Figure 3-18 Logical structure of the LRFU

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LEDs Table 3-17 describes the LEDs on the panel of the LRFU. Table 3-17 LEDs on the LRFU Label

Color

Status

Description

RUN

Green

On


Off






On




Off


On

The module works properly (TX channel enabled).


The module is running (TX channel disabled).

On (red)

A VSWR-related alarm is generated at the ANT_TX/RXA port.


A VSWR-related alarm is generated at the ANT_TX/RXB port.


A VSWR-related alarm is generated at the ANT_TX/RXA and ANT_TX/ RXB ports.

Off (red)


On (green)


On (red)




ALM

ACT

VSWR

CPRI0

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Red

Green

Red

Red/Green


50



Label

CPRI1

Color

Red/Green

Status

Description

Off

The SFP module is out of position, or the optical module is powered off.

On (green)


On (red)




Off


Port Table 3-18 describes the ports on the panel of the LRFU. Table 3-18 Ports on the panel of the LRFU Port

Label

Connector

Description

RF port

ANT_T X/RXB

DIN connector


ANT_T X/RXA

DIN connector

CPRI0


Used for the connection to the BBU. CPRI0 port and CPRI1 port work in mutual backup mode.

CPRI1



Power supply socket

PWR

3V3 power connector

Used for feeding -48 V DC input power

Monitoring port

MON

RJ45 connector


CPRI port

Technical Specifications This section describes the technical specifications of the LRFU, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

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3.1.10 LRFUe LTE Radio Frequency Unit Type E (LRFUe) is an RF unit of LTE Frenquency Division Duplex (FDD) and applies to LTE only scenario.

Panel Figure 3-19 shows the panel of the LRFUe. Figure 3-19 Panel of the LRFUe

Functions The LRFUe processes uplink and downlink services and controls and monitors internal boards or modules. Figure 3-20 shows the logical structure of the LRFUe.

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Figure 3-20 Logical structure of the LRFUe

LEDs Table 3-19 describes the LEDs on the panel of the LRFUe. Table 3-19 LEDs on the LRFUe Label

Color

Status

Description

RUN

Green

On


Off






On




Off


On


ALM

ACT

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Red

Green


53



Label

VSWR

CPRI0

CPRI1

Color

Red

Red/Green

Red/Green

Status

Description



On (red)

A VSWR-related alarm is generated at the ANT_TX/RXA port.


A VSWR-related alarm is generated at the ANT_TX/RXB port.


A VSWR-related alarm is generated at the ANT_TX/RXA and ANT_TX/ RXB ports.

Off (red)


On (green)


On (red)




Off


On (green)


On (red)




Off


Port Table 3-20 describes the ports on the panel of the LRFUe. Table 3-20 Ports on the panel of the LRFUe Port

Label

Connector

Description

RF port

ANT_TX/ RXB

DIN connector


ANT_TX/ RXA

DIN connector

RX_INB


Interconnecti on port for Issue 07 (2012-12-30)



54



Port

Label

Connector

Description

receiving RF signals

RX_OUTA



CPRI port

CPRI0



CPRI1



Power supply socket

PWR

3V3 power connector

Used for feeding -48 V DC input power

Monitoring port

MON

RJ45 connector


Technical Specifications This section describes the technical specifications of the LRFUe, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.1.11 CRFUd CDMA radio frequency unit type D (CRFUd) is an RF unit of LTE Frequency Division Duplex (LTE FDD) and applies to LTE only scenarios.

Panel Figure 3-21 shows the CRFUd panel.

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Figure 3-21 CRFUd panel

Functions The CRFUd performs the following functions: l

Receives UL RF signals from the antenna system and then down-converts the received signals to IF signals. After amplification, analog-to-digital conversion, digital downconversion, and matched filtering, the IF signals are sent to the BBU for further processing.

l

Receives DL baseband signals from the BBU, filters DL signals, performs digital-to-analog conversion, and up-converts RF signals to the TX band.

l

Multiplexes RX and TX signals, which enables these signals to share the same antenna path. It also filters the RX and TX signals.

Principles The CRFUd consists of the high-speed interface unit, signal processing unit, power amplifier, and duplex unit. Figure 3-22 shows the logic structure of the CRFUd.

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Figure 3-22 Logic structure of the CRFUd

Indicators Table 3-21 describes the indicators on the CRFUd panel. Table 3-21 Indicators on the CRFUd panel Indicato r

Color

Status

Description

RUN

Green

Steady on

There is power supply, but the CRFUd is faulty or the version is being checked.


The CRFUd works properly.


The CRFUd is loading software.

Steady off

There is no power supply or the CRFUd is faulty.

Steady on

Alarms (not including VSWR-related alarms) are generated and the CRFUd needs to be replaced.


Alarms are generated. The alarms may be caused by the faults on the related boards or ports. Therefore, you must locate the fault before replacing the CRFUd.

Steady off

No alarm (not including VSWR-related alarms) is generated.

Steady on

The CRFUd works properly with the TX channel enabled.

ALM

ACT

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Red

Green


57



Indicato r

VSWR

CPRI0

CPRI1

Color

Red

Red and green

Red and green

Status

Description


The CRFUd works properly with the TX channel disabled.

Steady on

A VSWR-related alarm is generated on the ANT_TX/RXA port.


A VSWR-related alarm is generated on the ANT_TX/RXB port.


A VSWR-related alarm is generated on the ANT_TX/RXA and ANT_TX/RXB ports.

Steady off


Steady green

The CPRI link is functioning properly.

Steady red



The CPRI link is out of lock.

Steady off


Steady green


Steady red



The CPRI link is out of lock.

Steady off


Ports Table 3-22 describes the ports on the CRFUd panel. Table 3-22 Ports on the CRFUd panel

Issue 07 (2012-12-30)

Port Type

Silkscreen

Connector

Description

RF port

ANT_TX/ RXB

DIN connector

Connects to the antenna system.

ANT_TX/ RXA

DIN connector


58



Port Type

Silkscreen

Connector

Description

Interconnecti on port for receiving RF signals

RX_INB

QMA female

Receives diversity signals in the antenna channel.

RX_OUTA

QMA female

Transmits diversity signals in the antenna channel.

CPRI port

CPRI0


Connects to the BBU. CPRI0 port and CPRI1 port work in mutual backup mode.

CPRI1


Connects to the BBU. CPRI1 port and CPRI0 port work in mutual backup mode.

Power supply socket

PWR

3V3 power connector

Feeds -48 V DC input power.

Monitoring port

MON

RJ45 connector

Used for monitoring and commissioning.

Technical Specifications This section describes the technical specifications of the CRFUd, which include supported modes and frequency Bands, RF Specifications, engineering specifications, and antenna capability.

3.2 RRU The Radio Remote Unit (RRU) converts and forwards signals between the BBU and the antenna system. The RRU implements the following functions: l

Receives downlink baseband data from the BBU and sends uplink baseband data for the communication between the BBU and the RRU.

l

The RX channel receives RF signals from the antenna system, down-converts the received signals to IF signals, amplifies the IF signals, and performs analog-to-digital (A/D) conversion. The TX channel filters downlink signals, performs digital-to-analog (D/A) conversion, and up-converts RF signals to the TX band.

l

Multiplexes RX and TX signals, which enables these signals to share the same antenna path. It also filters the RX and TX signals.

For details about various types of RRUs, see the hardware description of the corresponding RRU.

3.3 BBU3900 This section presents the exterior of the BBU3900 and describes the boards in the BBU3900 and their panels, functions, indicators, ports, and engineering specifications.

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3.3.1 BBU3900 The BBU3900, which has a case structure, is 19 inches wide and 2 U high. The dimensions of the BBU3900 are 86 mm x 442 mm x 310 mm (3.39 in. x 17.4 in. x 12.2 in.) (H x W x D), as shown in Figure 3-23. Figure 3-23 BBU3900

The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). It is used during base station commissioning. l

If there is a label on the FAN unit of the BBU, the ESN is printed on the label and a mounting ear of the BBU, as shown in Figure 3-24. Figure 3-24 ESN (1)

l

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If there is no label on the FAN unit of the BBU, the ESN is printed on a mounting ear of the BBU, as shown in Figure 3-25.


60



Figure 3-25 ESN (2)

3.3.2 BBU3900 Functions The BBU3900 is a baseband processing unit. It processes the baseband signals of the base station. The BBU3900 performs the following functions: l

Provides ports for communication between the base station and the BSC or RNC.

l

Provides CPRI ports for communication between the BBU and the RFUs.

l

Provides USB(1) ports. A USB flash drive that stores required software and configuration data can be inserted into the USB port to perform the automatic base station upgrade.

l

Provides an OM channel between the base station and the LMT or the M2000 to operate and maintain the base station.

l

Processes uplink and downlink data.

l

Manages the entire dual-mode system in terms of OM and signaling processing.

l

Provides the system clock. NOTE

(1) The security of the USB port is ensured by encryption. The TST port is used for commissioning the base station rather than importing or exporting the base station configuration.

3.3.3 BBU3900 Technical Specifications This section describes the technical specifications of the BBU, which include capacity, transmission ports, input power specifications, equipment specifications, environment specifications, and surge protection specifications. For details about technical specifications of a BBU3900, see section "BBU3900 Technical Specifications" in the 3900 Series Base Station Technical Description.

3.3.4 BBU3900 Slot Assignment This section describes the slot assignment principles for BBU boards in the following scenarios: BBU3900 GSM, BBU3900 UMTS, BBU3900 LTE, BBU3900 GSM+UMTS (GU for short), BBU3900 GSM+LTE (GL for short), BBU3900 UMTS+LTE (UL for short), BBU3900 GU+L (BBU not interconnected), BBU3900 GL+U (BBU not interconnected), BBU3900 GU+L (UCIU+UMPT), BBU3900 GL+U (UCIU+UMPT), and BBU3900 GU+UL (UCIU+UMPT). Issue 07 (2012-12-30)


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Slots in the BBU3900 Slots in the BBU3900 are the same in different scenarios, as shown in Figure 3-26. Figure 3-26 Slots in the BBU3900

BBU3900 GSM Table 3-23 lists the slot assignment principles for the boards in the BBU3900 GSM. Table 3-23 Slot assignment principles for the boards in the BBU3900 GSM Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

GTMU

Mandatory

1

Slots 5 and 6

It must be configured in slot 6, with both slots 5 and 6 occupied.

FAN

Mandatory

1

Slot 16

It must be configured in slot 16.

UPEU

Mandatory

2

Slot 18 or 19

A single UPEU is preferentially configured in slot 19.

USCU

Optional

1

Slot 0 or 1

It is referentially configured in slot 1. When configured with two satellite cards, it is configured in slot 1 (with both slots 0 and 1 occupied).

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UTRP

Optional

1

Slot 0 or 4

It is preferentially configured in slot 4.

UEIU

Optional

1

Slot 18

-

UCIU

Optional

1

Slot 0 or 4


UBRI

Optional

1

Slot 2

-

Figure 3-27 shows the typical configurations of the BBU3900 GSM. Figure 3-27 Typical configuration of the BBU3900 GSM

BBU3900 UMTS Table 3-24 describes the slot assignment principles for the boards in the BBU3900 UMTS. Table 3-24 Slot assignment principles for the boards in the BBU3900 UMTS Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WMPT/UMPT

Mandatory

2

Slot 6 or 7

A single UMPT or WMPT is preferentially configured in slot 7. The UMPT and WMPT cannot be configured simultaneously.

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WBBP

Mandatory

6

Slots 0 to 5

It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3 or 2. l If no more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 2, 4, or 5. The slot assignment principles for the WBBP boards are as follows: l The WBBPd or WBBPf is preferentiall y configured in slot 3 or 2. The WBBPf takes precedence over the WBBPd in slot assignment. l If five or more WBBPs are required, ensure that a WBBP is installed in each of slots

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction 2 and 3. At least one of the WBBPs in slots 2 and 3 is WBBPd or WBBPf. l If both slots 2 and 3 are occupied by the WBBPa or WBBPb boards, exchange boards to ensure that the WBBPd or WBBPf is configured in slot 3 or 2. l If the WBBPf4 is installed in the same BBU as the WBBPf1, WBBPf2, and WBBPf3, the WBBPf4 is preferentiall y installed in slots 2 and 3.

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FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-


65



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UTRP

Optional

2

Slot 0, 1, 4, 5, or 6

A single UTRP is preferentially configured in slot 4. If more UTRPs are required, the UTRP is installed, in descending order of priority, in slot 4, 5, 0, 1, or 6. If several UTRPs are configured, the priority of them as following: UTRPc, UTRP6, UTRP9, UTRP2, UTRP3/UTRP4

USCU

Optional

1

Slot 1 or 0

It is preferentially configured in slot 1. When configured with two satellite cards, it is configured in slot 1 (with both slots 0 and 1 occupied).

Figure 3-28 shows the typical configurations of the BBU3900 UMTS. Figure 3-28 Typical configuration of the BBU3900 UMTS

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BBU3900 LTE Table 3-25 describes the slot assignment principles for the boards in the BBU3900 LTE. Table 3-25 Slot assignment principles for the boards in the BBU3900 LTE Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

LMPT/UMPT

Mandatory

2

Slot 6 or 7

A single LMPT or UMPT is preferentially configured in slot 7. The UMPT and WMPT cannot be configured simultaneously.

LBBP

Mandatory

6

Slots 0 to 5

A single LBBP is preferentially configured in slot 3. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 3, 1, 2, 0, 4, or 5.

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FAN

Mandatory

1

Slot 16

It is configured only in slot 16.

UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

1

Slot 4 or 5



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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

USCU

Optional

1

Slot 0, 1, 4, or 5

A single USCU is preferentially configured in slot 5. A USCU that occupies 1 U space is configured in slot 5 (with both slots 5 and 4 occupied). If slots 4 and 5 are occupied, a USCU is preferentially configured in slot 1, or a USCU that uses a dual-satellite card is configured in slot 1, with both slots 1 and 0 occupied.

Figure 3-29 shows the typical configurations of the BBU3900 LTE. Figure 3-29 Typical configuration of the BBU3900 LTE

BBU3900 GU Table 3-26 describes the slot assignment principles for the boards in the BBU3900 GU.

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Table 3-26 Slot assignment principles for the boards in the BBU3900 GU Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WMPT/UMPT

Mandatory

1

Slot 7

The WMPT or UMPT is configured only in slot 7. The UMPT and WMPT cannot be configured simultaneously.

GTMU

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Mandatory

1

Slots 5 and 6


It is configured only in slot 6 (with slots 5 and 6 occupied).

69



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WBBP

Mandatory

5

Slots 0 to 4

It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3 or 2. l If no more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 2, or 4. If a WBBPd or WBBPf is required, it is installed, in descending order of priority, in slot 3 or 2. If five or more WBBPs are required, ensure that a WBBP is installed in each of slots 2 and 3. At least one of the WBBPs in slots 2 and 3 is WBBPd or WBBPf. The WBBPf takes precedence over the WBBPd during slot assignment.

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

2

Slot 0 or 4

It is preferentially configured in slot 4. The UTRP in GSM mode takes precedence over the UTRP in UMTS mode during slot assignment.

USCU

Optional

1

Slot 0, 1, or 4


UBRI

Optional

1

Slot 2

-

Figure 3-30 shows the typical configurations of the BBU3900 GU. Figure 3-30 Typical configuration of the BBU3900 GU

BBU3900 GL Table 3-27 describes the slot assignment principles for the boards in the BBU3900 GL. Issue 07 (2012-12-30)


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Table 3-27 Slot assignment principles for the boards in the BBU3900 GL Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

LMPT/UMPT

Mandatory

1

Slot 7

It is configured only in slot 7. The UMPT and WMPT cannot be configured simultaneously.

GTMU

Mandatory

1

Slots 5 and 6


LBBP

Mandatory

5

Slots 0 to 4

A single LBBP is preferentially configured in slot 3. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 3, 1, 2, 0, or 4.

FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

2

Slot 0 or 4

It is preferentially configured in slot 4. The UTRP in GSM mode takes precedence over the UTRP in LTE mode during slot assignment.

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

USCU

Optional

1

Slot 0, 1, or 4


UBRI

Optional

1

Slot 2

-

Figure 3-31 shows the typical configurations of the BBU3900 GL. Figure 3-31 Typical configuration of the BBU3900 GL

BBU3900 UL Table 3-28 describes the slot assignment principles for the boards in the BBU3900 UL. Table 3-28 Slot assignment principles for the boards in the BBU3900 UL

Issue 07 (2012-12-30)

Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

LMPT/UMPT

Mandatory

1

Slot 6


WMPT/UMPT

Mandatory

1

Slot 7


LBBP

Mandatory

5

Slot 0, 1, 2, 4, or 5

A single LBBP is configured only in slot 2. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 2, 1, 0, 4, or 5.


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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WBBP

Mandatory

5

Slot 0, 1, 3, 4, or 5

A single WBBP is configured only in slot 3. If more WBBPs are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 4, or 5. If a WBBPd or WBBPf is required, it is configured only in slot 3. The WBBP, which provides a maximum of six CPRI ports, is configured in either slot 2 or slot 3.

FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

2

Slot 4 or 5

It is preferentially configured in slot 4. The UTRP in UMTS mode takes precedence over the UTRP in LTE mode during slot assignment.

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

USCU

Optional

1

Slot 4 or 5


Figure 3-32 shows the typical configurations of the BBU3900 UL. Figure 3-32 Typical configuration of the BBU3900 UL

BBU3900 GU+L (BBUs not Interconnected) BBU3900 GU describes the slot assignment principles for the boards in the BBU supporting the GU mode in the scenario of BBU3900 GU+L (BBUs not interconnected). BBU3900 LTE describes the slot assignment principles for the boards in the BBU supporting the LTE mode in the scenario of BBU3900 GU+L (BBUs not interconnected).

BBU3900 GL+U (BBUs not Interconnected) BBU3900 GL describes the slot assignment principles for the boards in the BBU supporting the GL mode in the scenario of BBU3900 GL+U (BBUs not interconnected). BBU3900 UMTS describes the slot assignment principles for the boards in the BBU supporting the UMTS mode in the scenario of BBU3900 GL+U (BBUs not interconnected).

BBU3900 GU+L (UCIU+UMPT) Table 3-29 describes the slot assignment principles for the boards in BBU0 supporting the GU mode in the scenario of BBU3900 GU+L (UCIU+UMPT).

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Table 3-29 Slot assignment principles for the boards in BBU0 Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WMPT/UMPT

Mandatory

1

Slot 7


GTMU

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Mandatory

1

Slots 5 and 6



76



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WBBP

Mandatory

4

Slots 0 to 3

It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3 or 2. l If no more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, or 2. If a WBBPd is required, it is installed, in descending order of priority, in slot 3 or 2. If five or more WBBPs are required, ensure that two WBBPs are installed in slots 2 and 3. At least one of the two WBBPs is WBBPd.

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FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-


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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UTRP

Optional

1

Slot 0 or 1


USCU

Optional

1

Slot 0 or 1


UBRI

Optional

1

Slot 2

-

UCIU

Mandatory

1

Slot 0, Slot 1, Slot 4, or slot 5

The UCIU is installed in descending order of priority, in slot 4, 5, 0, or 1.

Table 3-30 describes the slot assignment principles for the boards in BBU1 supporting the LTE mode. Table 3-30 Slot assignment principles for the boards in BBU1 Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UMPT

Mandatory

2

Slot 6 or 7

A single UMPT is preferentially configured in slot 7.

LBBP

Mandatory

6

Slots 0 to 5

A single LBBP is preferentially configured in slot 3. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 3, 1, 2, 0, 4, or 5.

FAN

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Mandatory

1

Slot 16



78



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

1

Slot 4 or 5


USCU

Optional

1

Slot 0, 1, 4, or 5

A single USCU is preferentially configured in slot 5. A USCU that occupies 1 U space is configured in slot 5 (with both slots 5 and 4 occupied). If slots 4 and 5 are occupied, a USCU is preferentially configured in slot 1, or a USCU that uses a dual-satellite card is configured in slot 1, with both slots 1 and 0 occupied.

NOTE

The UCIU, UTRP, and USCU are configured in descending order of priority.

BBU3900 GL+U (UCIU+UMPT) Table 3-31 describes the slot assignment principles for the boards in BBU0 supporting the GL mode in the scenario of BBU3900 GL+U (UCIU+UMPT).

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Optional/ Mandatory

Maximum Number

Slot

Restriction

LMPT/UMPT

Mandatory

1

Slot 7

It is configured only in slot 7. The UMPT and WMPT cannot be configured simultaneously. The UMPT must be configured as the main control board in the UCIU+UMPT cascading scenario.

GTMU

Mandatory

1

Slots 5 and 6


LBBP

Mandatory

4

Slot 0 to slot 3

A single LBBP is preferentially configured in slot 3. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 3, 1, 2, or 0.

Issue 07 (2012-12-30)

FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-


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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UTRP

Optional

1

Slot 0 or 1

It is preferentially configured in slot 0. The UTRP in GSM mode takes precedence over the UTRP in LTE mode during slot assignment.

USCU

Optional

1

Slot 0 or 1


UBRI

Optional

1

Slot 2

-

UCIU

Mandatory

1



Table 3-32 describes the slot assignment principles for the boards in BBU1 supporting the UMTS mode. Table 3-32 Slot assignment principles for the boards in BBU1

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UMPT

Mandatory

2

Slot 6 or 7

A single UMPT is preferentially configured in slot 7.


81



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WBBP

Mandatory

6

Slots 0 to 5

It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3 or 2. l If no more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 2, 4, or 5. If a WBBPd or WBBPf is required, it is installed, in descending order of priority, in slot 3 or 2. If five or more WBBPs are required, ensure that a WBBP is installed in each of slots 2 and 3. At least one of the WBBPs in slots 2 and 3 is WBBPd or WBBPf. The WBBPf takes precedence over the WBBPd during slot assignment.

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

2

Slot 0, 1, 4, 5, or 6

A single UTRP is preferentially configured in slot 4. If more UTRPs are required, the UTRP is installed, in descending order of priority, in slot 4, 5, 0, 1, or 6.

USCU

Optional

1

Slot 1 or 0


NOTE


BBU3900 GU+UL (UCIU+UMPT) Table 3-33 describes the slot assignment principles for the boards in BBU0 supporting the GU mode in the scenario of BBU3900 GU+UL (UCIU+UMPT).

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Optional/ Mandatory

Maximum Number

Slot

Restriction

WMPT/UMPT

Mandatory

1

Slot 7


GTMU

Issue 07 (2012-12-30)

Mandatory

1

Slots 5 and 6



84



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

WBBP

Mandatory

4

Slot 0 to slot 3

It is configured in slot 3 by default. l If more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3 or 2. l If no more CPRI ports are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, or 2. If a WBBPd or WBBPf is required, it is installed, in descending order of priority, in slot 3 or 2. If five or more WBBPs are required, ensure that a WBBP is installed in each of slots 2 and 3. At least one of the WBBPs in slots 2 and 3 is WBBPd or WBBPf. The WBBPf takes precedence over the WBBPd during slot assignment.

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Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19


UEIU

Optional

1

Slot 18

-

UTRP

Optional

1

Slot 0 or 1

It is preferentially configured in slot 0. The UTRP in GSM mode takes precedence over the UTRP in UMTS mode during slot assignment.

USCU

Optional

1

Slot 0 or 1


UBRI

Optional

1

Slot 2

-

UCIU

Mandatory

1



Table 3-34 describes the slot assignment principles for the boards in the BBU3900 UL.

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Table 3-34 Slot assignment principles for the boards in the BBU3900 UL Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UMPT

Mandatory

1

Slot 6


UMPT

Mandatory

1

Slot 7


LBBP

Mandatory

5

Slot 0, 1, 2, 4, or 5

A single LBBP is configured only in slot 2. If more LBBPs are required, the LBBP is installed, in descending order of priority, in slot 2, 1, 0, 4, or 5.

WBBP

Mandatory

5

Slot 0, 1, 3, 4, or 5

A single WBBP is configured only in slot 3. If more WBBPs are required, the WBBP is installed, in descending order of priority, in slot 3, 0, 1, 4, or 5. If a WBBPd or WBBPf is required, it is configured only in slot 3. The WBBP, which provides a maximum of six CPRI ports, is configured in either slot 2 or slot 3.

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FAN

Mandatory

1

Slot 16


UPEU

Mandatory

2

Slot 18 or 19



87



Board

Optional/ Mandatory

Maximum Number

Slot

Restriction

UEIU

Optional

1

Slot 18

-

UTRP

Optional

1

Slot 4 or 5

It is preferentially configured in slot 4. The UTRP in UMTS mode takes precedence over the UTRP in LTE mode during slot assignment.

USCU

Optional

1

Slot 4 or 5


NOTE


3.3.5 GTMU The GSM transmission and timing and management unit (GTMU) is the basic transmission and control function entity of the BBU. It provides the reference clock, maintenance port, and external alarm collection port, monitors the power, controls and manages the entire BTS.

Specifications The GTMU is classified into two types: GTMU and GTMUb. Table 3-35 lists the transmission specifications of the GTMU and GTMUb. Table 3-35 Transmission specifications of the GTMU

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Board

Supported Mode

Transmissi on Mode

Number of ports

Port Capacity

Full/HalfDuplex

GTMU/ GTMUb

GSM

TDM over E1/T1

1

Four channels

Full-duplex

Transmissio n over FE optical ports

1

10 Mbit/s and 100 Mbit/s

Full-duplex


88



Board

Supported Mode

Transmissi on Mode

Number of ports

Port Capacity

Full/HalfDuplex

Transmissio n over FE electrical ports

1


Full-duplex

Table 3-36 lists the TRX specifications of the GTMU and GTMUb. Table 3-36 TRX specifications of the GTMU Board

Supported Mode

Transmission Mode

Maximum Carrier Number

GTMU/GTMUb

GSM

TDM

126

IP over FE

60

IP over E1

48

Panel Figure 3-33 and Figure 3-34 show the panels of the GTMU and GTMUb. Figure 3-33 GTMU panel

Figure 3-34 GTMUb panel

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89



Functions The GTMU performs the following functions: l

Controls, maintains, and operates the base station.

l

Supports fault management, configuration management, performance management, and security management.

l

Monitors the fans and power modules.

l

Provides and manages the clock of the base station in centralized mode.

l

Provides the clock output for test.

l

Provides a port for maintenance on the OM system.

l

Supports the transmission of four paths of E1 signals and two paths of FE signals.

l

Provides CPRI ports for communication between the BBU and the RFUs.

Indicators Table 3-37 describes the indicators on the GTMU. Table 3-37 Indicators on the GTMU Silkscreen

Color

Status

Description

RUN

Green

Steady on

There is power supply, but the board is faulty.

Steady off

There is no power supply, or the board is faulty.

On for 1s and off for 1s

The board is running properly.

On for 0.125s and off for 0.125s

Software is being loaded to the board.

Steady on

An alarm is generated, and the board must be replaced.

Steady off

There is no fault.


An alarm is generated and you need to locate the fault before deciding whether to replace the board.

Steady on

The board serves as an active board.


The OML is disconnected.

ALM

ACT

Red

Green

Besides the preceding three indicators, there are some other indicators on the board, indicating the connection status of the FE optical port, FE electrical port, CPRI port, and commissioning Issue 07 (2012-12-30)


90



port. They are near the corresponding ports and have no silkscreen. Table 3-38 describes the indicators. Table 3-38 Indicators for ports Indicator

Color

Status

Description

LIU0 to LIU3

Green

Steady on

An E1/T1 local alarm is generated.


An E1/T1 remote alarm is generated.

Steady off

The link is functional.

Steady green


Steady red

An optical module fails to receive or transmit signals because of the following reasons:

CPRI0 to CPRI5

Red or green

l The optical module is faulty. l The fiber optic cable is broken. Blinking red (on for 1s and off for 1s)

The CPRI link is out of lock because of the following reasons: l There is no mutual lock between dualmode clock sources. l There is mismatched data rate over CPRI ports.

Steady off

l The optical module cannot be detected. l The CPRI cable is not connected.

ETH

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Green (LINK indicator on the left side)

Steady on

The connection is set up successfully.

Steady off

No connection is set up.


91



Indicator

FE0

FE1 (on the GTMUb)

Color

Status

Description

Orange (ACT indicator on the right side)

Blinking

Data is being transmitted or received.

Steady off

No data is being transmitted or received.


Steady on


Steady off


Orange (ACT indicator on the right side)

Blinking


Steady off



Steady on


Steady off


Green (ACT indicator on the right side)

Blinking


Steady off


M_S (on the GTMUb)

-

-

This is the indicator for the reserved port.

EXT (on the GTMUb)

-

-

This is the indicator for the reserved port.

Ports Table 3-39 describes the ports on the GTMU.

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Table 3-39 Ports on the GTMU Silkscreen

Connector

Description

CPRI0 to CPRI5


Data transmission port interconnected to the RF module. It supports the input and output of optical and electrical transmission signals.

EXT (on the GTMUb)


Reserved

ETH(1)

RJ45 connector

Local maintenance and commissioning port

FE0

RJ45 connector

Connected to the routers in the equipment room through FE cables to transmit network information

FE1

DLC connector

Connected to the routers in the equipment room through fiber optic cables to transmit network information

TST(2)

USB connector

Providing reference clock for the test instruments

USB(3)

USB connector

Used for automatic software upgrade through the USB flash drive

E1/T1

DB26 female connector

Used for four E1/T1 inputs and outputs between the GTMU and the UELP or between BSCs

RST

-

Used for resetting the GTMU

NOTE

(1) Before accessing the base station through the ETH port, ensure that an OM port has been opened and the user has obtained required authorities for accessing the base station through the OM port. (2) The TST port is used for commissioning the base station rather than importing or exporting the base station configuration. (3) The security of the USB port is ensured by encryption.

DIP Switch On the GTMU, there are five DIP switches, each of which has four bits. DIP switches S1 and S2 need to be set jointly. The functions of the five DIP switches are as follows: l

S1 is used to select the E1 resistance. Table 3-40 provides details on the DIP switch.

l

S2 is used to select the grounding mode of E1/T1 transmission cables. Table 3-41 provides details on the DIP switch.

l

S3 is reserved.

l

S4 is used to select the E1 bypass. Table 3-42 provides details on the DIP switch.

l

S5 is used for timeslot settings when the E1 bypass is selected. Table 3-43 provides details on the DIP switch.

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93



Table 3-40 Description on S1 DIP Switch

DIP Setting

Description

1

2

3

4

S1

ON

ON

OFF

OFF

The E1 resistance is set to 75 ohm.

OFF

ON

OFF

OFF


ON

OFF

OFF

OFF

The T1 resistance is set to 100 ohm.

Others

Unavailable

NOTE

Bits 3 and 4 of S1 should be kept the factory-delivered configuration, without any manual setting on site. The out-of-factory state should be OFF. If the bits are ON, set them to OFF.


DIP Setting 1

2

3

4

S2

OFF

OFF

OFF

OFF

All the bits are set to OFF by default in all modes.

ON

ON

ON

ON

When error codes are received over the four E1 RX links in 75 ohm, all the bits of S2 must be set to ON to rectify the faults on the E1 links.

Description

Unavailable

Others

Table 3-42 Description on S4

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DIP Switch

DIP Setting 1

2

3

4

S4

ON

ON

ON

ON

Supporting E1 bypass

OFF

OFF

OFF

OFF

Not supporting E1 bypass

Description


94



DIP Switch

DIP Setting 1

2

Description 3

4

Others

Unavailable


DIP Setting

Description

1

2

3

4

S5

ON

ON

ON

ON

Not supporting E1 bypass

OFF

ON

ON

OFF

Supporting E1 bypass of level-1 cascaded base stations

ON

OFF

ON

OFF

Supporting E1 bypass of level-2 cascaded base stations

OFF

OFF

ON

OFF

Supporting E1 bypass of level-3 cascaded BTSs

ON

ON

OFF

OFF


OFF

ON

OFF

OFF


3.3.6 WMPT The WCDMA main processing and transmission unit (WMPT) processes signals for the BBU3900 and manages resources for other boards in the BBU3900.

Specifications Table 3-44 lists the WMPT specifications.

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Table 3-44 WMPT specifications Board

Applicable Mode

Transmissi on Mode

Number of ports

Port Capacity

Full/HalfDuplex

WMPT

UMTS

ATM over E1/T1 or IP over E1/T1

1

Four channels

Full-duplex

Transmissio n over FE optical ports

1


Full-duplex

Transmissio n over FE electrical ports

1


Full-duplex

Panel Figure 3-35 shows the panel of the WMPT. Figure 3-35 WMPT panel

Functions The WMPT performs the following functions: l

Performs functions such as configuration management, equipment management, performance monitoring, signaling processing, and active and standby switchover, and provides OM channel to communicate with the LMT or M2000.

l

Provides a reference clock for the system.

l

Processes signaling and manages resources for other boards in the BBU3900.

l

Provides USB ports. A USB flash drive that stores required software and configuration data can be inserted into the USB port to perform the automatic base station upgrade.

l

Provides a 4-channel E1/T1 port over ATM or IP.

l

Provides an FE electrical port and an FE optical port over IP.

Indicators Table 3-45 describes the indicators on the WMPT panel. Issue 07 (2012-12-30)


96



Table 3-45 Indicators on the WMPT panel Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off



The board is functioning properly.


l Data or software is being loaded to the board. l The board is not started.

ALM

ACT

Red

Green

Steady on


Steady off




Steady on


Steady off

l The board does not serve as an active board. l The board has not been activated. l The board is not providing any services.


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The operation and maintenance link (OML) is disconnected.

97



Silkscreen

Color

Status

Description


The board is being tested, such as an RRU Voltage Standing Wave Ratio (VSWR) test through a USB(2)(3) flash drive.

In addition to the preceding three indicators, there are six indicators on the board panel, which indicate the connection status of the FE optical port, FE electrical port, and commissioning Ethernet port. The six indicators do not have silkscreen on the WMPT panel, whereas they are at both sides of the corresponding ports, as shown in Figure 3-36. Figure 3-36 Port status indicators on the WMPT panel

Table 3-46 describes the port status indicators on the WMPT panel. Table 3-46 Port status indicators Indicator

Color

Status

Description

FE1 optical port status indicators

Green (LINK on the left side)

Steady on


Steady off


Blinking


Steady off


Steady on


Steady off


Orange (ACT on the right side)

FE0 electrical port status indicators

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98



Indicator

ETH port indicators

Color

Status

Description


Blinking


Steady off


Steady on


Steady off


Blinking


Steady off




Ports Table 3-47 describes the ports on the WMPT panel. Table 3-47 Ports on the WMPT panel

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Silkscreen

Connector

Description

E1/T1 port


E1/T1 port

FE0

RJ45 connector

FE electrical port

FE1


FE optical port

GPS

SMA connector

Reserved

ETH(1)

RJ45 connector

Commissioning

TST(2)

USB connector

USB commissioning port

USB(3)

USB connector

USB loading port

RST

-

Used for resetting the WMPT


99


3 Modules in the BTS3900 Cabinet NOTE

(1) Before accessing the base station through the ETH port, ensure that an OM port has been opened and the user has obtained required authorities for accessing the base station through the OM port. (2) The TST port is used for commissioning the base station rather than importing or exporting the base station configuration. (3) The security of the USB port is ensured by encryption.

DIP Switch The WMPT has two DIP switches: SW1 and SW2. SW1 is used to set the work mode of the E1/ T1 signal cable, and SW2 is used to set the resistance of the four E1/T1 signal cables in different modes. Figure 3-37 shows the DIP switch settings of the WMPT. Figure 3-37 DIP switch settings of the WMPT

Table 3-48 and Table 3-49 list the DIP switch settings of the WMPT. Table 3-48 Settings of the DIP switch SW1 on the WMPT DIP Switch SW1

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DIP Status

Description

1

2

3

4

ON

ON

OFF

OFF

T1

OFF

OFF

ON

ON


ON

ON

ON

ON



100



DIP Switch

DIP Status 1

Description 2

3

4

Others

Unavailable

Table 3-49 Settings of the DIP switch SW2 on the WMPT DIP Switch

DIP Status

Description

1

2

3

4

SW2

OFF

OFF

OFF

OFF

Balanced

ON

ON

ON

ON

Imbalanced

Others

Unavailable

3.3.7 UMPT The universal main processing and transmission unit (UMPT) processes signals and manages resources on other boards in the BBU3900.

Specifications of the UMPT The UMPT is classified into three types: UMPTa1, UMPTa2, and UMPTa6. Table 3-50 lists the specifications of the UMPTa1, UMPTa2, and UMPTa6. Table 3-50 Specifications of the UMPT Board

Applicable Mode

Transmissi on Mode

Number of ports

Port Capacity

Full/HalfDuplex

UMPTa1

UMTS

ATM over E1/T1 or IP over E1/T1

1

Four channels

-

Transmissio n over FE/ GE electrical ports

1

10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s

Full-duplex

Transmissio n over FE/ GE optical ports

1

100 Mbit/s or 1000 Mbit/s

Full- or halfduplex

IP over E1/ T1

1

Four channels

-

UMPTa2/ UMPTa6

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LTE


101



Board

Applicable Mode

Transmissi on Mode

Number of ports

Port Capacity

Full/HalfDuplex


1

10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s

Full-duplex


1

100 Mbit/s or 1000 Mbit/s

Full- or halfduplex

Panel Figure 3-38, Figure 3-39 and Figure 3-40 show the panels of the UMPT boards. Figure 3-38 UMPTa1 Panel

Figure 3-39 UMPTa2 Panel

Figure 3-40 UMPTa6 Panel

NOTE

In the lower left of the UMPTa1, UMPTa2, and UMPTa6, there are silkscreens UMPTa1, UMPTa2, and UMPTa6, respectively, indicating their board types.

Functions The UMPT performs the following functions: Issue 07 (2012-12-30)


102



l

Performs configuration management, device management, performance monitoring, signaling message processing, and active/standby switchover.

l

Controls all boards in the system.

l

Provides the reference clock for the entire system.

l

Implements transmission and provides absolute time and 1 pulse per second (PPS) reference clock source while being equipped with a single satellite card.

l

Provides four E1 ports and two FE/GE ports to implement basic transmission in compliance with Asynchronous Transfer Mode (ATM), Internet Protocol (IP), and Point-to-Point Protocol (PPP) during the initial configuration.

Ports Table 3-51 describes the ports on the UMPT. Table 3-51 Ports on the UMPT Silkscreen

Connector

Description

FE/GE1


A 100 Mbit/s or 1000 Mbit/s adaptive Ethernet optical port is used for transmitting service data and signaling messages.

FE/GE0

RJ45 connector

A 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s adaptive Ethernet electrical port is used for transmitting service data and signaling messages.

USB(1)

USB connector

The USB port with the USB silkscreen is used for the software upgrade of a base station using a USB flash driver. This port also functions as a commissioning Ethernet port(2). The USB port with the CLK silkscreen functions as the TOD clock or test clock port.

E1/T1


The port is used for four E1/T1 signal inputs and outputs between the UMPT and universal E1/T1 lightning protection unit (UELP) or between base station controllers.

GPS

SMA connector

The GPS port on the UMPTa1 or UMPTa2 is reserved. The GPS port on the UMPTa6 is used for transmitting radio frequency (RF) signals received from the antenna to the satellite card.

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CI


The port is used for BBU interconnection.

RST

-

The port is used to reset the board.


103


3 Modules in the BTS3900 Cabinet NOTE

(1) The security of the USB port is ensured by encryption. (2) When the USB port functions as a commissioning Ethernet port, ensure that an OM port has been opened and the user has obtained required authorities for accessing the base station through the OM port before accessing the base station through the USB port.

Indicators Table 3-52 describes the indicators on the UMPT. Table 3-52 Indicators on the UMPT Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off





l The board is being loaded or configured. l The board is not started.

ALM

ACT

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Red

Green

Steady on

An alarm is generated, and the board needs to be replaced.

Steady off



An alarm is generated, and you need to locate the fault before deciding whether to replace the board.

Steady on



104



Silkscreen

Color

Status

Description

Steady off



The operation and maintenance link (OML) is disconnected.


The board is being tested, such as an RRU Voltage Standing Wave Ratio (VSWR) test through a USB(1) flash drive. NOTE Of UMPT boards, only the UMPTa1 has this status.

In every 4s, the indicator is on for 0.125s and off for 0.125s (eight times) in the first 2s and then off for 2s.

l All cells corresponding to the subrack that houses this board are not activated. l The S1 link is faulty. NOTE Of UMPT boards, only the UMPTa2 and UMPTa6 have this status.

Besides the preceding three indicators, some other indicators indicate the connection status of the FE/GE optical port, FE/GE electrical port, interconnection port, and E1/T1 port. The indicators on the FE/GE optical port, FE/GE electrical port, interconnection port, and E1/T1 port, which have no silkscreen on the boards, are near the corresponding port, as shown in Figure 3-41.

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105



Figure 3-41 Indicators for ports

Table 3-53 describes the indicators. Table 3-53 Indicators for ports Indicator/ Silkscreen

Color

Status

Definition

LINK (silkscreen for the optical port)

Green

Steady on

The connection is normal.

Steady off

The connection is abnormal.

Blinking

Data is being transmitted.

Steady off

No data is being transmitted.

Steady on

The connection is normal.

Steady off

The connection is abnormal.

Blinking

Data is being transmitted.

Steady off

No data is being transmitted.

Steady green

The interconnection link is normal.

Steady red

An optical module fails to receive signals because of one of the following reasons:

ACT (silkscreen for the optical port)

LINK (silkscreen for the electrical port)

ACT (silkscreen for the electrical port)

CI

Orange

Green

Orange

Red or green

l The optical module is faulty. l The optical cable is broken.

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Indicator/ Silkscreen

Color

Status

Definition

Blinking red (on for 0.125s and off for 0.125s)

Cables are connected in one of following incorrect manners: l In the UCIU +UMPT scenario, the S0 port on the UCIU is connected to the CI port on the UMPT. Indicators for the S0 and CI ports are blinking. l The ports are connected in ring topology. Indicators for all incorrectly connected ports are blinking.

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Steady off

The optical module cannot be detected.

R0, R1, R2

Red or green

-

Reserved

L01

Red or green

Steady off

E1/T1 link 0 and 1 is not set up, or an LOS alarm is generated.

Steady green

E1/T1 links 0 and 1 are working properly.

Blinking green (on for 1s and off for 1s)

E1/T1 link 0 is working properly, but E1/T1 link 1 is not set up or an LOS alarm is generated.

Blinking green (on for 0.125s and off for 0.125s)


Steady red

Alarms are generated on E1/T1 links 0 and 1.


107



Indicator/ Silkscreen

L23

Color

Red or green

Status

Definition


An alarm is generated on E1/T1 link 0.



Steady off

E1/T1 link 2 and 3 is not set up, or an LOS alarm is generated.

Steady green

E1/T1 links 2 and 3 are working properly.





Steady red

Alarms are generated on E1/T1 links 2 and 3.





DIP Switch Two DIP switches on the UMPT are labeled SW1 and SW2. Figure 3-42 shows the positions of DIP switches on the UMPT.

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Figure 3-42 Positions of DIP switches on the UMPT

Each DIP switch has four bits. The DIP switches have the following functions: l

SW1 is used to select the E1/T1 mode. Table 3-54 describes the DIP switch.

l

SW2 is used to select the grounding mode of E1/T1 transmission. Table 3-55 describes the DIP switch.

Table 3-54 DIP switch SW1 DIP Switch

SW1

DIP Status

Description

1

2

ON

ON

The E1 resistance is set to 75 ohms.

OFF

ON

The E1 resistance is set to 120 ohms.

ON

OFF

The T1 resistance is set to 100 ohms.

Table 3-55 DIP switch SW2 DIP Switch

DIP Status 1

2

3

4

SW2

OFF

OFF

OFF

OFF

Balanced

ON

ON

ON

ON

Unbalanced

Description

3.3.8 LMPT The LTE main processing and transmission unit (LMPT) manages the entire eNodeB system in terms of OM and signaling processing and provides system clock for the BBU3900.

Specifications Table 3-56 lists the specifications of the LMPT. Issue 07 (2012-12-30)


109



Table 3-56 Specifications of the LMPT Board

Mode

Transmissi on Mode

Number of ports

Port Capacity

Full/HalfDuplex

LMPT

LTE


2

10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s

Full-duplex


2

10 Mbit/s, 100 Mbit/s, and 1000 Mbit/s

Full-duplex

Panel Figure 3-43 shows the LMPT. Figure 3-43 LMPT

Functions The LMPT performs the following functions: l

Enables configuration management, device management, performance monitoring, signaling processing, and radio source management

l

Controls all boards in the system

l

Provides the system clock

l

Enables signal exchange between the eNodeB and MME/S-GW

Indicators There are three indicators on the LMPT panel. Table 3-57 describes the indicators on the LMPT panel and their status. Table 3-57 Indicators on the LMPT panel

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Silkscreen

Color

Status

Description

RUN

Green

Steady on



110



Silkscreen

Color

Status

Description

Steady off




On for 0.125s and l Software or data is being off for 0.125s loaded to the board. l The board is not started. ALM

ACT

Red

Green

Steady on


Steady off




Steady on


Steady off


On for 0.125s and The OML is disconnected. off for 0.125s In every 4s, the indicator is on for 0.125s and off for 0.125s (eight times) in the first 2s and then off for 2s.

l All cells corresponding to the subrack that houses this board are not activated. l The S1 link is faulty.

Besides the preceding three indicators, some other indicators used for indicating the connection status of the FE optical port, FE electrical port, and commissioning Ethernet port have no silkscreen on the board. They are near the ports. Table 3-58 describes the indicators.

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Table 3-58 Indicators Silkscreen

Color

Status

Description

SFP0 and SFP1

Green (LINK)

Steady on


Steady off


Blinking


Steady off


Blinking


Steady off


Steady on


Steady off


Steady on


Steady off


Blinking


Steady off


Orange (ACT)

ETH

Orange (ACT)

Green (LINK)

FE/GE0 to FE/GE1

Green (LINK)

Orange (ACT)

Ports Table 3-59 describes the ports on the panel of the LMPT.

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Table 3-59 Ports on the panel of the LMPT Silkscreen

Connector

Quantity

Description

SFP0 and SFP1


2

FE/GE optical port connecting to the transmission equipment or gateway equipment

ETH(1)

RJ45 connector

1

Commissioning

TST(2)

USB connector

1

Test port

USB(3)

USB connector

1

Software loading

FE/GE0 to FE/GE1

RJ45 connector

2

FE/GE electrical port connecting to the transmission equipment or gateway equipment

GPS

SMA connector

1

GPS port

RST

-

1

Used for resetting the LMPT

NOTE

(1) Before accessing the base station through the ETH port, ensure that an OM port has been opened and the user has obtained required authorities for accessing the base station through the OM port. (2) The TST port is used for commissioning the base station rather than importing or exporting the base station configuration. (3) The security of the USB port is ensured by encryption. NOTE

SFP0 and FE/GE0 ports on the LMPT are used for one GE input. Therefore, they are not used simultaneously. SFP1 and FE/GE1 ports on the LMPT are used for another GE input. Therefore, they cannot be used simultaneously.

3.3.9 WBBP The WCDMA baseband processing unit (WBBP) in the BBU3900 processes baseband signals.

Specifications The WBBP falls into four types, as listed in Table 3-60. NOTE

The WBBP in slot 2 or slot 3 could transfer the received CPRI data to other boards.

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Table 3-60 Specifications of the WBBP Board

Number of Cells Supported

Number of UL CEs

Number of DL CEs

WBBPa

3

128

256

WBBPb1

3

64

64

WBBPb2

3

128

128

WBBPb3

6

256

256

WBBPb4

6

384

384

WBBPd1

6

192

192

WBBPd2

6

384

384

WBBPd3

6

256

256

WBBPf1

6

192

256

WBBPf2

6

256

384

WBBPf3

6

384

512

WBBPf4

6

512

768

Panel The WBBP has four types of panels, as shown in Figure 3-44, Figure 3-45, Figure 3-46, and Figure 3-47. Figure 3-44 Panel of the WBBPa

Figure 3-45 Panel of the WBBPb

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Figure 3-46 Panel of the WBBPd

Figure 3-47 Panel of the WBBPf

NOTE

l The WBBPb1, WBBPb2, WBBPb3, and WBBPb4 have silkscreens WBBPb1, WBBPb2, WBBPb3, and WBBPb4 indicating their board types on the lower left corner of the board panel, respectively. l The WBBPd1, WBBPd2, and WBBPd3 have silkscreens WBBPd1, WBBPd2, and WBBPd3 indicating their board types on the lower left corner of the board panel, respectively. l The WBBPf1, WBBPf2, WBBPf3, and WBBPf4 have silkscreens WBBPf1, WBBPf2, WBBPf3, and WBBPf4 indicating their board types on the lower left corner of the board panel, respectively.

Functions The WBBP performs the following functions: l

Provides CPRI ports for communication with RF modules, and supports CPRI ports in 1 +1 backup mode.

l

Processes uplink and downlink baseband signals.

l

The WBBPd supports interference cancellation (IC) within the board.

l

When the WBBPd is installed in slot 2 or 3 and is connected to an RF module, the WBBPd supports the IC of uplink data.

l

The WBBPf installed in slot 2 or slot 3 supports the baseband interconnection between BBUs.

Indicators There are three indicators on the panel of the WBBP. Table 3-61 describes the indicators on the WBBP and their status. Table 3-61 Indicators on the panel of the WBBP and their status

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Silkscreen

Color

Status

Description

RUN

Green

Steady on



115



Silkscreen

Color

Status

Description

Steady off





l Software or data is being loaded to the board. l The board is not started.

ALM

ACT

Red

Green

Steady on


Steady off




Steady on


Steady off



The power supply for the board is insufficient. NOTE Of all types of WBBP boards, only the WBBPf has this status.

The WBBPa or WBBPb provides three indicators indicating the status of Small Form-factor Pluggable (SFP) links, and the indicators are below the SFP ports. The WBBPd or WBBPf provides six indicators indicating the status of SFP links, and the indicators are above the SFP ports. Table 3-62 describes the indicators. Table 3-62 CPRI port status indicators

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Silkscreen

Color

Status

Description

CPRIx

Red or green

Steady green



116



Silkscreen

Color

Status

Description

Steady red

An optical module fails to receive or transmit signals because of the following reasons: l The optical module is faulty. l The fiber optic cable is broken.


The RF module connected to the CPRI link has a hardware fault.


The CPRI link is out of lock because of following reasons: l There is no mutual lock between dualmode clock sources. l There is mismatched data rate over CPRI ports. l VSWR alarms are generated on the RF module connected to the CPRI link when the USB(1) flash drive is used for VSWR test.

Steady off


NOTE

(1) The security of the USB port is ensured by encryption. The TST port is used for commissioning the base station rather than importing or exporting the base station configuration.

The WBBPf provides an indicator indicating the status of the Quad Small Form-factor Pluggable (QSFP) link, and the indicator is above the QSFP port. Table 3-63 describes this indicator.

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Table 3-63 QSFP port status indicators Silkscreen

Color

Status

Description

HEI

Red or green

Steady green

The inter-BBU transmission link is functional.

Steady red



The interconnection link is out of lock because of the following reasons: l There is no mutual lock between two interconnected BBUs. l There is mismatched data rate over QSFP ports.

Steady off


Ports Table 3-64 describes the three CPRI ports on the panel of the WBBPa and WBBPb. Table 3-64 Ports on the WBBPa and WBBPb panels

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Silkscreen

Connector

Description

CPRIx




118



Table 3-65 describes the six CPRI ports on the panel of the WBBPd. Table 3-65 Ports on the WBBPd panel Silkscreen

Connector

Description

CPRI0, CPRI1, CPRI2, CPRI3/ EIH0, CPRI4/EIH1, CPRI5/EIH2



The WBBPf provides six CPRI ports and one HEI port, as listed in Table 3-66. Table 3-66 Ports on the WBBPf panel Silkscreen

Connector

Description

CPRIx



HEI

QSFP connector

Port interconnected to other baseband boards to share the baseband resources.

3.3.10 LBBP The LTE baseband processing unit (LBBP) in the BBU3900 processes baseband signals.

Specifications An LBBPc supports a maximum of 600 scheduled users and 1800 activated users. An LBBPd supports a maximum of 3600 activated users. When one baseband board supports multiple sectors, the number of RRC connected users is limited by the capability of the baseband board, as shown in Table 3-67. Table 3-67 Users per sector

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Bandwidth

RRC Connected Users per Cell

1.4MHz

168

3MHz

360

5MHz

600 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

119



Bandwidth

RRC Connected Users per Cell

10MHz, 15MHz, and 20MHz

1200

Table 3-68 lists the specifications of the LBBP that is used in the LTE FDD scenario. Table 3-68 Specifications Board

Numbe r of Cells Suppor ted

Cell Bandwidth

Antenna Configuration

Maximum Throughput

LBBP c

3

1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz

3 x 10 MHz, 4T4R channel

l Downlink throughput: 300 Mbit/s

3 x 20 MHz, 2T2R channel 1 x 20 MHz, 4T4R channel

LBBP d1

3



l Downlink throughput: 300 Mbit/s l Downlink throughput: 450 Mbit/s l Downlink throughput: 225 Mbit/s

LBBP d2

3



l Downlink throughput: 600 Mbit/s l Uplink throughput: 225 Mbit/s

Table 3-69 lists the specifications of the LBBP that is used in the LTE TDD scenario.

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Table 3-69 Specifications Board

Numbe r of Cells Suppor ted

Cell Bandwidth

Antenna Configuration

Maximum Throughput

LBBP c

3

5 MHz, 10 MHz, and 20 MHz


l Downlink throughput: 300 Mbit/s

3 x 10 MHz, 4T4R channel 1 x 20 MHz, 8T8R channel LBBP d2

3

5 MHz, 10 MHz, and 20 MHz


l Downlink throughput: 300 Mbit/s l Downlink throughput: 600 Mbit/s l Uplink throughput: 225 Mbit/s

NOTE

l The Antenna Configuration column lists the maximum specifications supported by various types of LBBP. For example, the maximum specification supported by the LBBPc is 3 x 10 MHz, 4T4R channel, then the configurations of 3 x 1.4 MHz, 4T4R channel, of 3 x 3 MHz, 4T4R channel, and of 3 x 5 MHz, 4T4R channel are supported by the LBBPc. l The cells carried on the same baseband processing board must use the same antenna configuration as well as a bandwidth lower than the maximum bandwidth supported by each cell in this antenna configuration. For example, if an LBBPc supports the 3x20 MHz 2T2R antenna configuration, the three cells carried on the LBBPc can use any of the following antenna configurations: 1.4 MHz 2T2R, 3 MHz 2T2R, 5 MHz 2T2R, 10 MHz 2T2R, 15 MHz 2T2R, and 20 MHz 2T2R.

Panel The LBBP has two types of panels, as shown in Figure 3-48 and Figure 3-49. Figure 3-48 LBBPc panel

Figure 3-49 LBBPd panel

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NOTE

The LBBPd1, and LBBPd2 have silkscreens LBBPd1, and LBBPd2 indicating their board types on the lower left corner of the board panel, respectively.

Functions The LBBP performs the following functions: l

Processes uplink and downlink baseband signals.

l

Provides CPRI ports for communication with RF modules.

Indicators On the LBBP panel, there are three indicators, as described in Table 3-70. Table 3-70 Indicators on the LBBP panel Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off






ALM

ACT

Red

Green

Steady on


Steady off



An alarm is generated, and you need to locate the fault before deciding whether to replace the board.

Steady on


Steady off

l The board does not serve as an active board. l The board is not activated. l The board does not provide any services.

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Silkscreen

Color

Status

Description


The power supply for the board is insufficient. NOTE Of all types of LBBP boards, only the LBBPd has this status.

As listed in Table 3-71, the LBBP provides six indicators indicating the Small Form-factor Pluggable (SFP) link status. The indicators are positioned above the SFP ports. Table 3-71 SFP link status indicators Silkscreen

Color

Status

Description

CPRIx

Red or green

Steady green


Steady red



The RF module connected to the CPRI link has a hardware fault.


The CPRI link is out of lock because of the following reasons: l There is no mutual lock between dualmode clock sources. l The data rates of the CPRI ports do not match each other.

Steady off


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The LBBPd provides an indicator that indicates the Quad Small Form-factor Pluggable (QSFP) link status. The indicator is above the QSFP port. Table 3-72 describes the indicator. Table 3-72 QSFP link status indicator Silkscreen

Color

Status

Description

HEI

Red or green

Steady green

The inter-BBU transmission link is functional.

Steady red



The interconnection link is out of lock because of the following reasons: l There is no mutual lock between two interconnected BBUs. l The data rates of the QSFP ports do not match each other.

Steady off


Ports Table 3-73 describes the six CPRI ports on the LBBP panel.

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Table 3-73 LBBP ports Silkscreen

Connector

Quantity

Description

CPRI0 to CPRI5


6

Connected to the RF modules for transmitting service data, clock signals, and synchronization information.

Table 3-74 describes the QSFP port on the LBBPd panel. Table 3-74 QSFP port on the LBBPd panel Silkscreen

Connector

Quantity

Description

HEI

QSFP connector

1

Reserved

3.3.11 FAN The FAN unit for the BBU3900 controls the speed of fans and monitors the temperature of the fan unit. It reports the status of the fans and fan unit, and dissipates heat from the BBU.

Panel The FAN units fall into two types: FAN and FANc, as shown in Figure 3-50 and Figure 3-51. Figure 3-50 FAN

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Figure 3-51 FANc

NOTE

There is a FANc silkscreen on the FANc while the FAN has no such silkscreen.

Functions The FAN unit performs the following functions: l

Controls the fan speed.

l

Reports the status, temperature, and in-position signal of the fans to the main control processing unit.

l

Monitors the temperature at the air intake vent.

l

Dissipates heat.

l

The FANc provides a read-write electronic label.

Indicator There is only one indicator on the panel of the FAN unit, which indicates the operating status of the fans. Table 3-75 describes the indicator. Table 3-75 Indicator on the panel of the FAN unit

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Silkscreen

Color

Status

Description

STATE

Red or green


The module is not registered, and no alarm is reported.


The module is working.


The module is reporting alarms.

Steady off

There is no power supply.


126



3.3.12 UPEU The universal power and environment interface unit (UPEU) for the BBU3900 converts -48 V DC or +24 V DC power into +12 V DC power.

Panel The UPEU is classified into four types: universal power and environment interface unit type a (UPEUa), universal power and environment interface unit type b (UPEUb), universal power and environment interface unit type c (UPEUc), and universal power and environment interface unit type d (UPEUd). The UPEUa, UPEUc, and UPEUd convert -48 V DC power into +12 V DC power, and the UPEUb converts +24 V DC power into +12 V DC power. Figure 3-52, Figure 3-53, Figure 3-54, and Figure 3-55 show the panels of the UPEUa, UPEUb, UPEUc, and UPEUd, respectively. Figure 3-52 UPEUa panel

(1) BBU power switch

(2) 7W2 connector

Figure 3-53 UPEUb panel


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(2) 7W2 connector


127



Figure 3-54 UPEUc panel


(2) 3V3 connector

Figure 3-55 UPEUd panel


(2) 3V3 connector

NOTE

The UPEUc and UPEUd have silkscreens "UPEUc" and "UPEUd" indicating their board types on them, respectively, whereas the UPEUa and UPEUb do not have such silkscreens indicating their board types. The UPEUa and UPEUb, however, can be distinguished by the silkscreens "-48 V" and "+24 V" on them.

Functions The UPEU performs the following functions: l

Converts -48 V DC or +24 V DC power into +12 V DC power, which is the operating voltage of the boards.

l

Provides two ports with each receiving one RS485 signal and another two ports with each receiving four Boolean signals. The Boolean signals can only be dry contact or Open Collector (OC) signals.

Table 3-76 describes the specifications. Table 3-76 Specifications

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Board

Output Power

Backup Mode

UPEUa

The output power of a UPEUa is 300 W.

1+1 backup


128



Board

Output Power

Backup Mode

UPEUc

The output power of a UPEUc is 360 W, and the output power of two UPEUc boards is 650 W.

1+1 backup

UPEUd

The output power of a UPEUd is 650 W.

1+1 backup

NOTE

After the UPEUa is replaced by the UPEUc, the UPEU power consumption data monitored by the M2000 will change. The power consumption data does not only depend on the output power but also on the data collection method. The UPEUc and UPEUa use different methods for collecting power consumption data. Therefore, the decrease in the power consumption shown in the M2000 after the UPEUa is replaced by the UPEUc does not necessarily reflect the actual decrease of power consumption.

Indicator The UPEU has one indicator, which indicates the operating status of the UPEU. Table 3-77 describes the indicator. Table 3-77 Indicator on the UPEU panel Silkscreen

Color

Status

Description

RUN

Green

Steady on

The board is functional.

Steady off


Port The UPEU provides two RS485 signal ports, each receiving one RS485 signal, and two Boolean signal ports, each receiving four Boolean signals. Figure 3-56 shows the slots in the BBU. Figure 3-56 Slots in the BBU

Table 3-78 describes the ports on the UPEU panel. Issue 07 (2012-12-30)


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Table 3-78 Description on the ports Slot

Silkscree n

Connecto r

Quantity

Description

Slot 19

+24 V or -48 V

3V3 or 7W2 connector

1

Introducing +24 V or -48 V DC power

EXTALM0

RJ45 connector

1

Port for Boolean inputs 0 to 3

EXTALM1

RJ45 connector

1


MON0

RJ45 connector

1

Port for RS485 input 0

MON1

RJ45 connector

1


+24 V or -48 V

3V3 or 7W2 connector

1

Introducing +24 V or -48 V DC power

EXTALM0

RJ45 connector

1


EXTALM1

RJ45 connector

1


MON0

RJ45 connector

1


MON1

RJ45 connector

1


Slot 18

3.3.13 UEIU The universal environment interface unit (UEIU) of the BBU3900 transmits monitoring signals and alarm signals from external devices to the main control board.

Panel Figure 3-57 shows the panel of the UEIU. Figure 3-57 Panel of the UEIU

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130



Functions The UEIU performs the following functions: l

Provides two ports with each receiving one path of RS485 signal.

l

Provides two ports with each receiving four paths of Boolean signals. The Boolean signals can only be dry contact or OC signals.

l

Transmits monitoring signals and alarm signals from external devices to the main control board.

Port The UEIU is configured in slot 18 and provides two RS485 signal ports, each transmitting one path of RS485 signals, and two Boolean signal ports, each transmitting four paths of Boolean signals. Table 3-79 describes the ports on the panel of the UEIU. Table 3-79 Ports on the panel of the UEIU Slot

Silkscre en

Connect or

Quanti ty

Description

Slot 18

EXTALM0

RJ45 connector

1


EXTALM1

RJ45 connector

1


MON0

RJ45 connector

1


MON1

RJ45 connector

1


3.3.14 UTRP The universal transmission processing unit (UTRP) is an extended transmission board in the BBU3900 and provides ports connecting to transmission equipment.

Specifications Table 3-80 describes the specifications of the UTRP.

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Table 3-80 Specifications of the UTRP Board

Subboard/ Board Type

Supporte d Mode

Transmis sion Mode

Number of ports

Port Capacity

Full/ HalfDuplex

UTRP2

UEOC

UMTS

Transmiss ion over FE/GE optical ports

2

10 Mbit/s, 100 Mbit/ s, and 1000 Mbit/ s

Fullduplex

UTRP3

UAEC

UMTS

ATM over E1/T1

2

Eight channels

Fullduplex

UTRP4

UIEC

UMTS

IP over E1/ T1

2

Eight channels

Fullduplex

UTRPb4

Without a sub-board

GSM

TDM over E1/T1

2

Eight channels

Fullduplex

UTRP6

UUAS

UMTS

STM-1/ OC-3

1

One channel

Fullduplex

UTRP9

UQEC

UMTS

Transmiss ion over FE/GE electrical ports

4


Fullduplex

UTRPc

Without a sub-board

GSM

Transmiss ion over FE/GE electrical ports

4


Fullduplex

Transmiss ion over FE/GE optical ports

2


Fullduplex

UMTS LTE

Panel Figure 3-58 shows the panel of the UTRP2. Figure 3-58 Panel of the UTRP2 (with two optical ports)

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Figure 3-59 shows the panel of the UTRP3 and UTRP4. Figure 3-59 Panel of the UTRP3 and UTRP4 (with eight E1/T1 channels)

Figure 3-60 shows the panel of the UTRPb4 in GSM mode. Figure 3-60 Panel of the UTRP4 (with eight E1/T1 channels)

Figure 3-61 shows the panel of the UTRP6. Figure 3-61 Panel of the UTRP6 (with one STM-1 channel)

Figure 3-62 shows the panel of the UTRP9. Figure 3-62 Panel of the UTRP9 (with four electrical ports)

Figure 3-63 shows the panel of the UTRPc. Figure 3-63 Panel of the UTRPc (with four electrical ports and two optical ports)

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Functions The UTRP performs the following functions: l

Provides extended E1/T1 ports to connect to transmission equipment, supporting ATM, TDM, and IP transmission.

l

Provides electrical and optical transmission ports to connect to transmission equipment.

l

Supports cold backup.

Restriction The GTMUa cannot be used together with the UTRPc.

Indicators Table 3-81 describes the indicators on the UTRP panel. Table 3-81 Indicators on the UTRP panel Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off






ALM

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Red

Steady on


Steady off





134



Silkscreen

Color

Status

Description

ACT

Green

Steady on


Steady off


The ACT indicator on the UTRP board in GSM mode has different status from the ACT indicator on other boards, as listed in Table 3-82. Table 3-82 Status of the ACT indicator on the UTRP board in GSM mode Silkscreen

Color

Status

Description

ACT

Green

Steady on

l Before the configuration takes effect, none or both of the two E1 ports in GSM mode are functional. l The configuration has taken effect.


Before the configuration takes effect, only one E1 port in GSM mode is functional.

Each Ethernet port on the UTRP2, UTRP9, and UTRPc corresponds to two indicators indicating the status of the current link, as listed in Table 3-83. Table 3-83 Status of the indicators for Ethernet ports on the UTRP2, UTRP9, and UTRPc

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Silkscreen

Color

Status

Description

LINK

Green

Steady on

The link is connected properly.


135



Silkscreen

ACT

Color

Orange

Status

Description

Steady off

The link is not connected properly.

Blinking

Data is being transmitted or received on the link.

Steady off

No data is being transmitted or received on the link.

There are three indicators on the UTRPc: R0, R1, and R2, of which the status is listed in Table 3-84. Table 3-84 Status of indicators on the UTRPc Silkscreen

Color

Status

Description

R0

Red or green

Steady off

The board is not working in GSM mode.

Steady green

The board is working in GSM mode.

Steady red

Reserved

Steady off

The board is not working in UMTS mode.

Steady green

The board is working in UMTS mode.

Steady red

Reserved

Steady off

The board is not working in LTE mode.

Steady green

The board is working in LTE mode.

Steady red

Reserved

R1

Red or green

R2

Red or green

NOTE

If multiple indicators are on at the same time, the board works in multiple modes.

Ports Table 3-85 describes the ports on the UTRP2. Issue 07 (2012-12-30)


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Table 3-85 Ports on the panel of the UTRP2 (with 2 optical ports) Silkscreen

Port Type

Quantity

Connector

FE/GE0 and FE/GE1

FE/GE optical port

2


The UTRP3, UTRP4, and UTRPb4 have the same ports, as listed in Table 3-86. Table 3-86 Ports on the panel of the UTRP3, UTRP4, and UTRPb4 (with 8 E1/T1 ports) Silkscreen

Port Type

Quantity

Connector

E1/T1

E1/T1 port

2


Table 3-87 lists the ports on the UTRP6. Table 3-87 Ports on the panel of the UTRP6 (with one STM-1 channel) Silkscreen

Port Type

Quantity

Connector

STM-1/OC-3

STM-1/OC-3

1


Table 3-88 lists the ports on the UTRP9. Table 3-88 Ports on the panel of the UTRP9 (with four electrical ports) Silkscreen

Port Type

Quantity

Connector

FE/GE0 to FE/GE3

FE/GE electrical port

4

RJ45 connector

Table 3-89 describes the ports on the panel of the UTRPc. Table 3-89 Ports on the panel of the UTRPc (with four electrical ports and two optical ports)

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Silkscreen

Port Type

Quantity

Connector

FE/GE0 and FE/GE1

FE/GE optical port

2


FE/GE2 to FE/GE5

FE/GE electrical port

4

RJ45 connector


137



DIP Switch There is no DIP switch on the UTRP2, UTRP6, and UTRP9. There are three DIP switches on the UTRP3, UTRP4, and UTRPb4. SW1 and SW2 are used to set whether to ground the receiver end of the E1 cable, and SW3 is used to set the resistance of the E1 cable. Figure 3-64 shows the DIP switches on the UTRP3 and UTRP4. Figure 3-65 shows the DIP switches on the UTRPb4. Figure 3-64 DIP switches on the UTRP3 and UTRP4

Figure 3-65 DIP switches on the UTRPb4

Table 3-90, Table 3-91, and Table 3-92 list the settings of the DIP switches on the UTRP. Table 3-90 Settings of SW1 on the UTRP DIP Switch SW1

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DIP Setting

Description

1

2

3

4

OFF

OFF

OFF

OFF

Balanced

ON

ON

ON

ON

Imbalanced


138



DIP Switch

DIP Setting 1

Description 2

3

4

Others

Unavailable

Table 3-91 Settings of SW2 on the UTRP DIP Switch

DIP Setting

Description

1

2

3

4

SW2

OFF

OFF

OFF

OFF

Balanced

ON

ON

ON

ON

Imbalanced

Others

Unavailable

CAUTION SW1 and SW2 are set to OFF by default. SW1 corresponds to No.4 to No.7 E1 channels. SW2 corresponds to No.0 to No.3 E1 channels.

Table 3-92 Settings of SW3 on the UTRP DIP Switch

DIP Setting 1

2

3

4

SW3

OFF

OFF

ON

ON

T1

ON

ON

OFF

OFF


ON

ON

ON

ON


Description

Others

Unavailable

3.3.15 USCU This section describes the universal satellite card and clock unit (USCU).

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Specifications The USCU falls into five types, as shown in Table 3-93. Table 3-93 Specifications of the USCU Board

Supported Mode

Supported Satellite Card

USCUb11

LTE

N/A

USCUb12

GSM

RT single-satellite card

UMTS LTE USCUb14

GSM

UBLOX single-satellite card

UMTS LTE USCUb22

GSM

Naviors dual-satellite card

UMTS LTE USCUb21

GSM

K161 dual-satellite card

UMTS LTE

Panel There are five types of USCU: USCUb11, USCUb12, USCUb14, USCUb22, and USCUb21, as shown in Figure 3-66 and Figure 3-67. The USCUb11, USCUb12, and USCUb14 have the same exterior. The USCUb22 and the USCUb21 have the same exterior. Figure 3-66 USCUb11, USCUb12, and USCUb14 panel

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140



Figure 3-67 USCUb22 and USCUb21 panel

(1) GPS port

(2) RGPS port

(3) TOD port

(4) M-1PPS port

(5) BITS port

NOTE

l The USCUb11, USCUb12, and USCUb14 have silkscreens USCUb11 , USCUb12 and USCUb14 indicating their board types on the lower left corner of the board panel, respectively. l The USCUb22 and USCUb21 have silkscreens USCUb22 and USCUb21 indicating their board types on the lower left corner of the board panel, respectively.

Functions The USCU has the following functions: l

The USCUb11 provides ports to communicate with the RGPS (for example the reused equipment of the customer) and BITS equipment. It does not support GPS signals.

l

The USCUb12 contains an RT satelliate card, which does not support RGPS signals.

l

The USCUb14 contains a UBLOX satelliate card, which does not support RGPS signals.

l

The USCUb22 does not support RGPS signals. It uses a Naviors satellite card, which must be purchased locally and installed onsite.

l

The USCUb21 does not support RGPS signals. It uses a K161 satellite card, which must be purchased locally and installed onsite.

Indicators Table 3-94 and Table 3-95 describe the indicators on the USCU. Table 3-94 Indicators on the USCU

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Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off





141



Silkscreen

Color

Status

Description



ALM

Red

ACT

Green

Steady on


Steady off




Steady on


Steady off


Table 3-95 Indicators for the TOD ports Color

Status

Description

Green (on the left)

The green indicator is steady on and the orange indicator is steady off.

The TOD port is configured as an input port.

Orange (on the right)

The orange indicator is steady on and the green indicator is steady off.

The TOD port is configured as an output port.

Ports Table 3-96 describes the ports on the USCU. Issue 07 (2012-12-30)


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Table 3-96 Ports on the USCU Silkscreen

Connector

Description

GPS

SMA connector

The GPS ports on the USCUb12, USCUb21, USCUb14 and USCUb22 receive GPS signals. The GPS port on the USCUb11 is reserved and cannot receive GPS signals.

RGPS port

PCB welded wiring terminal

The RGPS port on the USCUb11 receives RGPS signals. The RGPS ports on the USCUb12, USCUb21, USCUb14 and USCUb22 are reserved and cannot receive RGPS signals.

TOD0 port

RJ45 connector

This port receives or transmits 1PPS+TOD signals.

TOD1 port

RJ45 connector

This port receives or transmits 1PPS+TOD signals, and receives TOD signals from the M1000.

BITS port

SMA connector

This port receives BITS clock signals, supports adaptive input of 2.048 MHz and 10 MHz clock reference source.

M-1PPS port

SMA connector

This port receives 1PPS signals from the M1000.

3.3.16 UBRI The universal baseband radio interface board (UBRI) provides extended CPRI optical or electrical ports to implement convergence, distribution, and multi-mode transmission on the CPRI.

Panel Figure 3-68 shows the panel of the UBRI. Figure 3-68 UBRI panel

Functions The UBRI performs the following functions: l

Provides extended CPRI electrical or optical ports.

l

Performs convergence, distribution, and multi-mode transmission on the CPRI.

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Indicators Table 3-97 describes the indicators on the UBRI panel. Table 3-97 Indicators on the UBRI panel Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off





Software is being loaded to the board.

Steady on

An alarm is generated on the board.

Steady off




Steady on


Steady off

l The board does not serve as an active board.

ALM

ACT

Red

Green

l The board has not been activated. l The board is not providing any services.

The UBRI provides six indicators indicating the status of the CRRI links. The indicators are above the SFP ports. Table 3-98 describes the indicators. Table 3-98 CPRI port status indicators

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Silkscreen

Color

Status

Description

CPRIx

Red or green

Steady green



144



Silkscreen

Color

Status

Description

Steady red

An optical module fails to receive signals because of the following reasons: l The optical module is faulty. l The fiber optic cable is broken.


The CPRI link is out of lock because of the following reasons: l There is no mutual lock between dualmode clock sources. l The data rates of the CPRI ports do not match each other.

Steady off


Ports Table 3-99 describes the ports on the UBRI panel. Table 3-99 Ports on the UBRI panel Silkscreen

Connector

Quantity

Description

CPRI0 to CPRI5


6

Connecting the BBU and the RF module

3.3.17 UCIU The universal inter-connection infrastructure unit (UCIU) interconnects BBUs. It forwards control and synchronization information from one BBU to another.

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Figure 3-69 UCIU panel

Functions The UCIU performs the following functions: l

Supports single- or multi-mode configuration and management. When in multi-mode, it is shared by multiple modes and can be configured and managed by any mode.

l

Interconnects BBUs and forwards control and synchronization information from one BBU to another.

l

Supports co-site of a 3900 series base station and a 3012 series base station.

l

Supports the connection to a UMPT using a fiber optic cable.

Indicators A UCIU provides one DB15 port, three running indicators, and six SFP+ ports for interconnection, with one double-colored indicator on each port. Table 3-100 describes the indicators on the UCIU panel. Table 3-100 Indicators on the UCIU panel Silkscreen

Color

Status

Description

RUN

Green

Steady on


Steady off






ALM

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Red

Steady on


Steady off

There is no fault.




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Silkscreen

Color

Status

Description

ACT

Green

Steady on


Steady off


M0 to M4 and S0

Red or green

Steady green

The inter-BBU transmission link is normal.

Steady red

The optical module fails to transmit or receive signals, or the fiber optic cable is faulty.


Cables are connected in an incorrect manner. For example: l In the UCIU+UMPT scenario, the S0 port on the UCIU is connected to the CI port on the UMPT. Indicators for the S0 and CI ports are blinking. l The ports are connected in ring topology. Indicators for all incorrectly connected ports are blinking.

Steady off


Ports Table 3-101 describes UCIU ports. Table 3-101 UCIU ports

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Silkscreen

Connector

Description

M0 to M4


Primary inter-BBU ports, which connect to the secondary inter-BBU ports.

S0


Secondary inter-BBU port, which connects to the primary inter-BBU port.

GCK

DB15 connector

Provides reference clocks when the base station and a 3012 series base station are combined.


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3.4 GATM The GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.

Panel Figure 3-70 shows the GATM panel. Figure 3-70 GATM panel

Function The GATM has the following functions: l

Controls the RET antenna.

l

Supplies power to the TMA.

l

Reports the RET control signal alarms.

l

Monitors the current from the feeder. NOTE

The GATM cannot support the TMA and RET antenna simultaneously.

LED On the GATM there are three LEDs, which indicate the operating status of the GATM. Table 3-102 describes the LEDs on the GATM. Table 3-102 LEDs on the GATM LED

Color

Status

Description

RUN

Green

ON for 2s and OFF for 2s

The power supply is normal, but the communication with the BBU incurs faults.

ON for 1s and OFF for 1s

The module is functional and communicates with the BBU properly.

OFF

There is no power supply, or the module is faulty.

ON

The AISG link is available.

OFF

The AISG link is unavailable.

ACT

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Green


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LED

ALM

Color

Red

Status

Description

Blinking irregularly

The AISG link is in transmission state.

ON

An alarm is generated, such as an overcurrent alarm.

OFF

The module is functional.

Port ID There are eight ports on the GATM, of which six are used to supply power to the TMA or transmit the RET control signals, one is used to connect the GATM to the BBU, and one is used as an extended RS485 port. In addition, there is also a -48 V DC power supply socket. Table 3-103 describes the ports and socket on the GATM. Table 3-103 Ports and socket on the GATM Port ID

Connector

Function

ANT0 to ANT5

SMA female connector

Providing power and transmitting control signals for the RET antenna

COM1

RJ45 connector

Connecting to the BBU

COM2

RJ45 connector

Serving as an extended RS485 port for connecting to other devices

-48 V

3V3 power connector

Feeding -48 V DC power

3.5 EMU The Environment Monitoring Unit (EMU) is an environmental monitoring device that monitors environmental conditions of the equipment room. The EMU connects to main equipment and performs monitoring functions through the alarm cables. The EMU performs the following functions: l

Provides monitoring ports for the temperature, humidity, water, infrared, door control sensors, Boolean signals, analog signals, and output control signals.

l

Provides the RS485 and RS232 ports for the communication with the base station.

For details about the structure and functions of the EMU, see EMU User Guide.

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4

4 Power Distribution Scheme and Power Devices of the BTS3900 Cabinet

Power Distribution Scheme and Power Devices of the BTS3900 Cabinet

About This Chapter This section describes the input voltage range, configurations of upper-level circuit breakers and power cables, power distribution scheme, and components in the power system of the BTS3900 cabinet. 4.1 Configurations of the Upper-Level Circuit Breakers and Power Cables This section describes the recommended configurations of the upper-level circuit breaker and power cables for the BTS3900. The recommended configurations are all based on a fully configured base station, which has the peak output power. The power requirements for the customer equipment in the cabinet are also considered. 4.2 Cabinet Power Distribution This section describes power distribution modes of the BTS3900 cabinet. 4.3 Power Equipment (AC/DC) The power equipment (AC/DC) converts AC power into -48 V DC power.

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4.1 Configurations of the Upper-Level Circuit Breakers and Power Cables This section describes the recommended configurations of the upper-level circuit breaker and power cables for the BTS3900. The recommended configurations are all based on a fully configured base station, which has the peak output power. The power requirements for the customer equipment in the cabinet are also considered. The upper-level circuit breakers and power cables used by the BTS3900 vary according to the external power supply. NOTE

l All power cables must comply with local standards. l P is short for Pole, indicating the number of switches simultaneously controlled by a pole.

BTS3900 DC In the -48 V DC power supply scenario, the recommended configurations of the upper-level circuit breakers and power cables for the BTS3900 are listed in Table 4-1. Table 4-1 Recommended configurations of the upper-level circuit breakers and power cables for the BTS3900 DC Configuration(1)(2)

Minimum Circuit Breaker Configuration Required by Customer Equipment(3)(4)(5)

Power Cable(8)

Length of the Power Cable

l Four to six highpower RFUs(6) l One BBU

2 x 80A/1P (recommended)

16 mm2 cables (from one DCDU-11A)

≤ 15 m

1 x 160A/1P

35 mm2 low smoke zero halogen (LSZH) cable

l Four to six lowpower RFUs(7)

1 x 80A/1P

16 mm2 cable

1 x 100A/1P

35 mm2 low smoke zero halogen (LSZH) cable

2 x 63A/1P

16 mm2 cable

1 x 80A/1P

16 mm2 cable

l One BBU l One to three highpower RFUs l One BBU

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4 Power Distribution Scheme and Power Devices of the BTS3900 Cabinet NOTE

(1) Even if a base station is configured with both high- and low-power RFUs, configure circuit breakers for this base station as though all configured RFUs are high-power RFUs. (2) If possible, it is suggested to configure the base station with the power configuration for maximum high-power RFUs so as to satisfy all scenarios. If the power configuration has to be in accordance with actual scenarios, the circuit breaker and power cables need to be upgraded in case of base station extension. (3) The power configuration applicable for the scenarios with higher power consumption is also applicable for the scenarios with lower power consumption. (4) The circuit breakers for high load capability are applicable to those for low load capability. The sequence of load capability for circuit breakers is: 1 x 160A > 2 x 80A > 2 x 63A > 1 x 100A > 1 x 80A > 1 x 63A. (5) The power consumption of inner transmission is ignored for the circuit breakers of indoor macro base station. (6) High-power RFUs include: LRFUe, WRFUd, MRFUd, MRFUe, WRFUe, and CRFUd. (7) Low-power RFUs include: DRFU, GRFU, WRFU, MRFU, CRFU, and LRFU. (8) If two external power inputs are supplied, the following requirements must be met: l

The two power inputs must be supplied by the same power cabinet.

l

The circuit breakers used for the two power inputs have the same model and specifications.

l

The power cables for the two power inputs must have the same cross-sectional area and length.

l

When powering on the base station, turn on the two circuit breakers of power input before turning on the circuit breakers for all the RFUs. When powering off the base station, turn off the circuit breakers for all the RFUs before turning off the two circuit breakers of power input.

BTS3900 AC In the 110 V AC or 220 V AC power supply scenario, the recommended configurations of the upper-level circuit breaker and power cables for the BTS3900 are listed in Table 4-2. Table 4-2 Recommended configurations of circuit breakers and power cables Configuration

Power Supply

Circuit Breaker Configuration Required by Customer Equipment

Crosssectional Area of the Input Power Cable

Length of the Power Cable

l One to six high power RFUs(6) l One BBU

220 V AC threephase power

1 x 20A/3P

2.5mm2(9)

≤ 15 m

200 V AC single-phase power

1 x 50A/1P

16mm2(10)

110 V AC duallive-wire power

1 x 50A/2P

NOTE

(9) The AC power cable should be double insulated with 4 cores inside. (10) The AC power cable should be double insulated with 3 cores inside.

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4.2 Cabinet Power Distribution This section describes power distribution modes of the BTS3900 cabinet.

Power Distribution of the BTS3900 Cabinet (-48 V DC) The external power equipment supplies -48 V DC power to the DCDU-11A in the BTS3900 cabinet (-48 V DC), and the DCDU-11A feeds power to each module in the BTS3900 cabinet. Figure 4-1 shows power distribution principles. Table 4-3 describes output ports. Figure 4-1 Power distribution of the BTS3900 cabinet (-48 V DC)

NOTE

MCB: miniature circuit breaker

Table 4-3 Output ports on the DCDU-11A Output Port

Description

LOAD0 to LOAD5

Supplies power to RFU0 to RFU5

LOAD6

Supplies power to the fan box

LOAD7 and LOAD8

Supplies power to the BBU

LOAD9

Serves as a standby output port

Power Distribution of the BTS3900 Cabinet (AC) The external power equipment supplies 220 V AC single-phase or three-phase power, or 110 V AC dual-live-wire power to the BTS3900 cabinet (AC). The power equipment (AC/DC) converts Issue 07 (2012-12-30)


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the AC power into -48 V DC power and feeds the -48 V DC power to the DCDU-11A. Then, the DCDU-11A feeds power to each module in the cabinet. Figure 4-2 shows power distribution principles. Table 4-3 describes output ports. Figure 4-2 Power distribution of the BTS3900 cabinet (AC)

4.3 Power Equipment (AC/DC) The power equipment (AC/DC) converts AC power into -48 V DC power.

4.3.1 Structure of the Power Equipment AC/DC The power equipment (AC/DC) consists of the PMU, PSUs (AC/DC) and power subrack (AC/ DC). Figure 4-3 shows the power equipment (AC/DC).

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Figure 4-3 Power equipment (AC/DC)

(1) PMU

(2) PSUs (AC/DC)

(3) Power subrack (AC/DC)

Table 4-4 describes the components of the power equipment (AC/DC). Table 4-4 Components of the power equipment (AC/DC) Module

Description

PMU

For details, see 4.3.2 PMU.

PSU (AC/DC)

For details, see 4.3.3 PSU (AC/DC).

Power subrack (AC/DC)

For details, see 4.3.4 Power Subrack (AC/ DC).

4.3.2 PMU The power monitoring unit (PMU) provides the functions of power equipment management, power monitoring, and alarm reporting.

Functions The PMU has the following functions: l

Communicates with the BBU or cascaded PMU by using the COM_OUT or COM_IN port.

l

Manages the power equipment and charging and discharging of the batteries.

l

Checks and reports the Boolean values and status of the water sensor, smoke sensor, door status sensor, and standby sensor.

l

Reports the temperature and humidity, battery temperature, and standby analog values.

l

Monitors the power supply and reports alarms, including dry contact alarms.

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Figure 4-4 Exterior of the PMU

Ports and LEDs Figure 4-5 shows the ports, switch, and LED on the front panel of the PMU. Figure 4-5 Ports, switch, and LED on the front panel of the PMU

1. COM_OUT port

2. COM_IN port

3. COM port

2. Battery control switch

5. COM_485 port

6. Power test ports

7. LEDs

-

-

Table 4-5 describes the ports on the PMU.

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Table 4-5 Ports on the PMU Port

Description

COM_OUT and COM_IN ports

The ports are used to connect the PMU and BBU or any other PMU.

COM port

The port is reserved for connecting to an external monitoring board.

Battery control switch

With the ON and OFF control ports, the switch controls the connection to or disconnection from batteries: l To connect to batteries, press and hold the ON port for 5s to 10s. l To disconnect from batteries, press and hold the OFF port for 5s to 10s. CAUTION When operating the battery control switch, insert a small round bar into the hole. When you hear a crack, the batteries are successfully connected or disconnected.

COM_485 port

The port is used for tests.

Power test ports

Two power supply test holes labeled -48 V and 0 V are available for measuring power voltages by using an ordinary multimeter.

Table 4-6 describes the LEDs on the PMU. Table 4-6 LEDs on the PMU

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Label

Color

Status

Description

RUN

Green


The PMU is functional and communicating with the main control board in the BBU properly. (This status does not necessarily mean that the main control board has been configured with the PMU.)


The PMU is functional but fails to communicate with the main control board in the BBU. If the PMU does not communicate with the BBU for one minute, the communication fails.

On or off

The PMU is faulty (when it is not in the power on self-test state).


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Label

Color

Status

Description

ALM

Red

On

The base station reports at least one of the following alarms: l Mains power overvoltage or undervoltage alarm l Busbar overvoltage or undervoltage alarm l PSU alarm l Load power-off alarm

Off

No alarm is generated.

NOTE

Within 3s to 5s after the PMU is powered on, the ALM and RUN LEDs are on for about 3s.

DIP Switch An eight-bit DIP switch is located on the right of a PMU, which is used to define the monitoring address. The DIP switch has been set before delivery, as shown in Figure 4-6. Figure 4-6 Right panel of the PMU

4.3.3 PSU (AC/DC) The power supply unit (PSU) of the AC/DC type converts 220 V AC power into -48 V DC power.

Panel Figure 4-7 shows the panel of a PSU (AC/DC).

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Figure 4-7 Panel of a PSU (AC/DC)

(1) Power LED

(2) Protection LED

(3) Fault LED

Functions l

It converts 220 V AC power into -48 V DC, which is the power input to the DCDU-11A.

l

It monitors and reports alarms related to PSU faults (such as output overvoltage, no output, and fan failure), alarms related to PSU protection (such as overtemperature protection and input overvoltage/undervoltage protection), and the alarm that a board cannot be detected, if any.

LEDs Table 4-7 describes the LEDs on the panel of the PSU (AC/DC). Table 4-7 LEDs on the panel of the PSU (AC/DC) LED

Color

Status

Description

Power LED

Green

On

The power supply is normal.

Off

There is a mains fault (such as no AC input, or overvoltage and undervoltage of AC input), or the PSU has no output.

Off

The PSU works properly.

On

Protection for abnormal function triggered by external factors.

Protection LED

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Yellow


159



LED

Color

Status

Description

Fault LED

Red

Off

The PSU works properly, or the PSU has no output due to a mains fault (such as no AC input, or overvoltage and undervoltage of AC input).

On

The PSU has no output due to one of the following reasons: l output voltage is over high l temperature is over high l fan failure l remote shutdown l internal problems of the PSU

4.3.4 Power Subrack (AC/DC) The power subrack (AC/DC) provides wiring terminals for power inputs and outputs, to which input and output power cables are connected respectively.

Panel Figure 4-8 shows the panel of a power subrack (AC/DC). Figure 4-8 Panel of a power subrack (AC/DC)

(1) Power input wiring terminals

(2) Circuit breakers

(3) Power output wiring terminals

-

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Ports Table 4-8 describes the wiring terminals and circuit breakers on the power subrack (AC/DC). Table 4-8 Wiring terminals and circuit breakers on the power subrack (AC/DC) Wiring Terminal or Circuit Breaker

Description

Power input wiring terminal

The terminals are used for the connection of input power cables.

Circuit breaker

The circuit breakers controls the power output.

Power output wiring terminal

The positive pole is connected to the RTN(+) wiring terminal on the DCDU-11A. The negative pole is connected to the NEG(-) wiring terminal on the DCDU-11A.

4.3.5 DCDU-11A The DCDU-11A provides DC power to all components in the cabinet.

Panel Figure 4-9 shows a DCDU-11A panel. Figure 4-9 DCDU-11A panel

Functions The DCDU-11A performs the following functions: l

Supports one -48 V DC input of 160 A or two -48 V DC inputs of 80 A.

l

Provides ten -48 V DC outputs of a maximum of 25 A.

l

Supplies power to all components in the cabinet.

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Ports Table 4-9 describes wiring terminals, ports, and switches on the DCDU-11A panel. Table 4-9 Wiring terminals, ports, and switches on the DCDU-11A panel Port Type

Label

Connector

Description

Power input wiring terminal

NEG(-)

OT terminal

Negative power input wiring terminal

RTN(+) Power output port

LOAD0 to LOAD9

Positive power input wiring terminal tool-less female connector (pressfit type)

Power output ports: Ports LOAD0 to LOAD5 supply power to RFU0 to RFU5. Port LOAD6 supplies power to the fan assembly. Ports LOAD7 and LOAD8 supply power to the BBU. Port LOAD9 serves as a standby output port.

Power switch

SW0 to SW9

-

The power switches SW0 to SW9 control the ports LOAD0 to LOAD9 respectively, controlling the power supplies to the BBU3900, RFUs, and fan assembly.

Technical Specifications Table 4-10 describes the technical specifications of the DCDU-11A. Table 4-10 Technical Specifications of the DCDU-11A Item

Specification

Dimension (H x W x D)

The DCDU-11A is 1 U (44.45 mm or 1.75 in.) high and can be installed in a 19 inch cabinet or rack. Its dimensions are as follows: l 42 mm x 442 mm x 220 mm (1.65 in. x 17.4 in. x 8.66 in.) (without mounting ears) l 42 mm x 482.6 mm x 220 mm (1.65 in. x 19 in. x 8.66 in.) (with mounting ears)

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-48 V DC port, differential mode: 2kV (1.2/50μs)


162



Item

Specification -48 V DC port, common mode: 4kV (1.2/50μs)

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5

5 Monitoring Scheme and Monitoring Devices of the BTS3900 Cabinet

Monitoring Scheme and Monitoring Devices of the BTS3900 Cabinet

About This Chapter 5.1 Monitoring Principles of the Cabinet The BTS3900 cabinet is managed by monitoring boards, such as the FMU and PMU. Each monitoring board is connected to the MON port on the BBU. They collect alarms of all components and report the alarms to the BBU by using the RS485 serial bus. 5.2 Customized Alarm Inputs When customer equipment generates an alarm, the alarm must be reported to the BBU. 5.3 Monitoring Boards in the BTS3900 Cabinet The monitoring boards of the BTS3900 collect monitoring signals and then report the monitoring signals to BBU3900.

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5.1 Monitoring Principles of the Cabinet The BTS3900 cabinet is managed by monitoring boards, such as the FMU and PMU. Each monitoring board is connected to the MON port on the BBU. They collect alarms of all components and report the alarms to the BBU by using the RS485 serial bus. l

The FMU is configured in the FAN Assembly of BTS3900 DC cabinet or BTS3900 AC cabinet. For details about functions of the monitoring ports on the FMU, see 6.1 Fan Assembly.

l

The PMU is configured in the BTS3900 AC cabinet. For details about functions of the monitoring ports on the PMU, see 4.3.2 PMU.

Two BBUs are required in an evolution from a dual-mode scenario as shown in Figure 5-1 to a triple-mode scenario as shown in Figure 5-2 or in a new triple-mode scenario as shown in Figure 5-2. The BBU0 is installed in the cabinet 0, and the BBU1 is installed in the cabinet 1. In a triple-mode scenario, all the monitoring equipment is connected to BBU0. The monitoring principles of the triple-mode scenario are the same as those of the dual-mode scenario. NOTE

In this document, the two BBUs in a triple-mode scenario are described as BBU0 and BBU1. The BBU 0 is root BBU, and the BBU 1 is leaf BBU.

Figure 5-1 Monitoring system for the BTS3900 DC (-48V) cabinet

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Figure 5-2 Monitoring system for the BTS3900 AC cabinet

NOTE

Refer to 5.2 Customized Alarm Inputs for monitoring principle of the EMU.

5.2 Customized Alarm Inputs When customer equipment generates an alarm, the alarm must be reported to the BBU. Customized alarms are reported to the BBU by any of the following methods: l

The alarms are collected by the UPEU or UEIU in the BBU.

l

The alarms are collected by the EMU.

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For details about the configuration of customized alarms, see the related initial configuration guide.

Monitoring Board Configuration The configuration of the monitoring boards in the BTS3900 depends on the number of customized alarm inputs, as listed in Table 5-1. Table 5-1 Configuration of monitoring boards in the BTS3900 Cabinet Type

Number of Dry Contact Alarm Inputs

Monitoring Board

-48 V DC cabinet or AC cabinet

1 to 8

UPEU

1 to 16

UPEU+UEIU

1 to 32

UPEU+UEIU+EMU

NOTE

l Analog values can be monitored only by the EMU. l The EMU with sensors can be configured based on site requirements.

Customized Alarms Collected by the UPEU or UEIU Each UPEU or UEIU in the BBU supports eight Boolean alarm inputs. A maximum of two UPEUs or UPEU+UEIU can be configured for the BBU to receive 16 Boolean alarm inputs. This method can be used for the configuration of fewer than 16 customized alarm inputs. The method of collecting customized alarms by using the UPEU or UEIU is shown in Figure 5-3. Figure 5-3 Customized alarms collected by the UPEU or UEIU

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Customized Alarms Collected by the EMU If there are more than 16 Boolean alarm inputs, an EMU can be configured for the BTS3900. Each EMU supports 32 Boolean alarm inputs and two RS485 signal inputs, the cable connections are shown in Figure 5-4. l

BTS3900 cabinet (-48 V DC): The EMU is connected to the MON1 port on the UPEU in the BBU.

l

BTS3900 cabinet (AC): The EMU is connected to the COM OUT port on the PMU in the power equipment (AC/DC).

Figure 5-4 Customized alarms collected by the EMU

5.3 Monitoring Boards in the BTS3900 Cabinet The monitoring boards of the BTS3900 collect monitoring signals and then report the monitoring signals to BBU3900. A BTS3900 cabinet is monitored by the FMU and PMU. 6.1 Fan Assembly describes the exterior, function, and ports of FMU. PMU describes the exterior, function, and ports of PMU.

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6

6 Components in the BTS3900 Cabinet

Components in the BTS3900 Cabinet

About This Chapter This section describes the components in the BTS3900. 6.1 Fan Assembly A fan assembly consists of a fan tray, four fans, and an FMU. 6.2 ELU The Electronic Label Unit (ELU) reports the cabinet type automatically to facilitate troubleshooting.

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6.1 Fan Assembly A fan assembly consists of a fan tray, four fans, and an FMU.

Exterior of the Fan Assembly Figure 6-1 shows the exterior of a fan assembly. Figure 6-1 Exterior of the Fan Assembly

(1) Fan

(2) Fan tray

(3) FMU

Function of the Fan Assembly The fan assembly performs the following functions: l

Provides forced ventilation and heat dissipation for the cabinet.

l

Monitors the temperature.

l

Supports fan speed adjustment based on temperature or controlled by the BBU.

l

Stops the fans when the ambient temperature is low.

FMU Figure 6-2 shows the ports on the FMU board.

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Figure 6-2 Ports on the FMU board

Table 6-1 and Table 6-2 describes the LEDs and Ports on the FMU board. Table 6-1 LEDs on the FMU board LED

Color

Status

Meaning

RUN

Green


The unit is functional but fails to communicate with the BBU or upperlevel FMU.


The unit is functional and is communicating with the BBU or upper-level FMU.

Off

There is no power supply, or the module is faulty.


The module is reporting alarms.

Off

No alarm is generated.

ALM

Red

Table 6-2 Ports on the FMU board

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Port Type

Label

Connector Type

Description

Power port

-48 V

3V3 power connector

The port is used to introduce the -48 V DC power supply.

Sensor port

SENSOR

RJ45 connector

The port is connected to the ELU.

Communicatio n port

COM OUT

RJ45 connector

The port is connected to the lower-level FMU.

COM IN

RJ45 connector

The port is connected to the BBU or upper-level FMU.


171



6.2 ELU The Electronic Label Unit (ELU) reports the cabinet type automatically to facilitate troubleshooting. The ELU is installed in the left side of the air intake vent. Figure 6-3 shows the position and exterior of the ELU in a BTS3900 cabinet. Figure 6-3 ELU

1. ELU

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2. RJ45 connector


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7 BTS3900 Cables

7

BTS3900 Cables

About This Chapter The BTS3900 cables consist of the PGND cable, power cable, transmission cable, CPRI cable, signal cable, and RF cable. NOTE

The colors of cables vary according to the countries and areas where Huawei products are delivered. If cables are purchased at local market, the colors of the cables must comply with the rules and regulations.

7.1 List of BTS3900 Cables The cables of a BTS3900 cabinet consist of PGND cables, power cables, transmission cables, CPRI cables, signal cables, and RF cables. 7.2 Cable Connections The power cables, transmission cables, CPRI cables, monitoring signal cables, and RF cables in a cabinet must be connected on the basis of separate cable connection principles. 7.3 Power Cables The power cables of the BTS3900 consist of the input power cable for the BTS3900 cabinet, DCDU-11A power cable, BBU power cable, power cable for the fan box, RFU power cable, and GATM power cable. 7.4 BTS3900 Transmission Cable The BTS3900 transmission cable includes E1/T1 cable, FE/GE cable, FE/GE Fiber Optic Cable, Interconnection Cable Between the FE Electrical Ports, and Interconnection Cable Between the FE Optical Ports. 7.5 Signal Cables The BTS3900 signal cables includes the monitoring signal cable for the PMU, monitoring signal cable for the fan box, monitoring signal cable for the EMU, BBU alarm cable, GPS clock signal cable, and signal cable for the ELU. 7.6 BTS3900 RF Cable The BTS3900 RF cables are the RF jumper and inter-RFU RF signal cable. 7.7 CPRI Electrical Cable The CPRI electrical cable enables high speed communication between the BBU3900 and the RFU. Issue 07 (2012-12-30)


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7.8 CPRI Fiber Optic Cable CPRI fiber optic cables are classified into multi-mode fiber optic cables and single-mode fiber optic cables. They transmit CPRI signals. 7.9 PGND Cables The PGND cables are used to ensure proper grounding of the cabinet and the modules in the cabinet. The maximum length of a PGND cable is 15 m (49.21 ft). 7.10 Equipotential Cable When the battery cabinet is working with the power cabinet, one cabinet should be grounded through connecting the equipotential cable to the other cabinet.

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7.1 List of BTS3900 Cables The cables of a BTS3900 cabinet consist of PGND cables, power cables, transmission cables, CPRI cables, signal cables, and RF cables.

PGND Cables and Power Cables The PGND cables and power cables are listed in Table 7-1. Table 7-1 PGND cables and power cables Category

Cables to be installed onsite

Cable

One End Connector

Installatio n Position

Connector


OT terminal

Main ground terminal on the cabinet

OT terminal

External ground bar

7.10 Equipotenti al Cable

OT terminal

Wiring terminal for an equipotentia l cable

OT terminal

Wiring terminal for an equipotential cable

7.3.1 Input Power Cable for the Cabinet

OT terminal

NEG(-) and RTN(+) wiring terminals on the DCDU-11A

OT terminal

External power equipment

OT terminal

Wiring terminal for power input of the power subrack (AC/DC)

OT terminal

External power equipment

OT terminal

PGND terminals on the modules

OT terminal

PGND terminal inside the cabinet

PGND Cables (PGND cable for the cabinet)

(-48 V power cable) 7.3.1 Input Power Cable for the Cabinet (AC power cable) Cables installed before delivery

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The Other End

7.9 PGND Cables (PGND cable for the modules)


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Category

Cable

One End

The Other End

Connector


Connector


7.3.5 RFU Power Cable

3V3 power connector

PWR port on an RFU

Tool-less female connector (pressfit type)

One of the LOAD0 to LOAD5 ports on the DCDU-11A

7.3.4 Power Cable for the FAN Assembly

3V3 power connector

-48V port on the fan box


LOAD6 port on the DCDU-11A

7.3.3 BBU Power Cable

3V3 power connector

PWR port on the UPEU


One of the LOAD7 to LOAD8 ports on the DCDU-11A

7.3.2 DCDU-11A Power Cable

OT terminal

RTN(+) wiring terminal on the DCDU-11A

OT terminal

RTN (+) wiring terminal for power output of the power subrack (AC/ DC)

OT terminal

NEG(-) wiring terminal on the DCDU-11A

OT terminal

NEG(-) wiring terminal for power output of the power subrack (AC/ DC)

(Black)

7.3.2 DCDU-11A Power Cable (Blue)

Transmission Cables The transmission cables are listed in Table 7-2.

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Table 7-2 Transmission cables Category


Cable

One End

The Other End

Connector


Connector


7.4.1 E1/T1 Cable

DB26 male connector

E1/T1 port on the GTMU, WMPT or UTRP

Bare wire

External transmission equipment

7.4.2 FE/GE Ethernet Cable

RJ45 connector

FE0 port on the GTMU, WMPT, LMPT, or UTRP

RJ45 connector


7.4.3 FE/GE Fiber Optic Cable

LC connector

SFP0 or SFP1 port on the GTMU, WMPT, LMPT, or UTRP

l FC connecto r


l SC connecto r l LC connecto r

Cables installed before delivery

7.4.4 Interconnec tion Cable Between the FE Electrical Ports

RJ45 connector

FE0 port on the GTMU

RJ45 connector

FE0 port on the WMPT

7.4.5 Interconnec tion Cable Between FE Optical Ports

LC connector

FE1 port on the GTMU

LC connector

FE1 port on the WMPT

CPRI Cables The CPRI cables are listed in Table 7-3.

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Table 7-3 CPRI cables Category

Cable

One End

The Other End

Connector


Connector


SFP20 male connector

CPRI port on the GTMU, WBBP, or LBBP

SFP200 male connector

CPRI port on the RFU


7.7 CPRI Electrical Cable


The BTS3900 cabinet is delivered with boards installed, and the CPRI cables in the cabinet are already installed. The CPRI cables between multiple cabinets may need to be installed based on configurations onsite.

Signal Cables The signal cables are listed in Table 7-4 Table 7-4 Signal cables Category


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Cable

One End

The Other End

Connector


Connector


7.5.4 Monitoring Signal Cable for the EMU

DB9 male connector

RS485 port on the EMU

RJ45 connector

MON1 port on the UPEU or UEIU

7.5.7 BBU Alarm Cable

RJ45 connector

EXT-ALM0 port on the UPEU or UEIU

RJ45 connector

External alarm device

7.5.8 GPS Clock Signal Cable

SMA male connector

GPS port on the USCU

Type N female connector

GPS surge protector


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Category


Cable

One End

The Other End

Connector


Connector


7.5.3 Fan Assembly Cascade Signal Cable

RJ45 connector

COM OUT port on the upper-level fan box

RJ45 connector

COM IN port on the lowerlevel fan box

7.5.1 Monitoring Signal Cable for the PMU

RJ45 connector

COM_IN port on the left of the PMU

RJ45 connector

MON1 port on the UPEU

7.5.2 Monitoring Signal Cable for the Fan Assembly

RJ45 connector

COM IN port on the fan box

RJ45 connector

MON0 port on the UPEU or UEIU

7.5.10 Signal Cable for the ELU

RJ45 connector

NOTE The lowerlevel fan box communicat es with the BBU using the upperlevel fan box.

NOTE The upperlevel fan box communicat es with the BBU directly.

NOTE If there is no BBU in the cabinet, the cable should be bound at right side.

ELU

RJ45 connector

SENSOR port on the fan box

RF Cables The RF cables are listed in Table 7-5. Table 7-5 RF cables Category

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Cable

7.6.1 RF Jumper

One End

The Other End

Connector


Connector


DIN elbow male connector

Port on the RFU

DIN straight male connector

Antenna system


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Category


Cable

7.6.2 InterRFU RF Signal Cable

One End

The Other End

Connector


Connector


QMA elbow male connector

RX OUT port on the RFU

QMA elbow male connector

RX IN port on another RFU

7.2 Cable Connections The power cables, transmission cables, CPRI cables, monitoring signal cables, and RF cables in a cabinet must be connected on the basis of separate cable connection principles.

7.2.1 Power Cable Connections This section describes power cable connections of the BTS3900 cabinet.

Power Cable Connections of the BTS3900 DC (-48 V) Cabinet Figure 7-1 shows the power cable connections of the BTS3900 DC (-48 V) cabinet. Figure 7-1 Power cable connections of the BTS3900 DC (-48 V) cabinet

Table 7-6 describes the power cables of the BTS3900 DC (-48 V) cabinet. Issue 07 (2012-12-30)


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Table 7-6 Power cables of the BTS3900 DC (-48 V) cabinet SN

Description

P0 to P5

For details, see 7.3.5 RFU Power Cable.

P6

For details, see 7.3.4 Power Cable for the FAN Assembly.

P7 and P8

For details, see 7.3.3 BBU Power Cable.

P9 and P10

For details, see 7.3.1 Input Power Cable for the Cabinet.

Power Cable Connections of the BTS3900 AC Cabinet The BTS3900 supports 220 V AC three-phase input, 220 V AC single-phase input, and 110 V AC dual-live-wire input. The following description takes the 220 V AC single-phase input as an example. Figure 7-2 shows the power cable connections of the BTS3900 AC (220 V) cabinet. Figure 7-2 Power cable connections of the BTS3900 AC (220 V) cabinet

Table 7-7 describes the power cables of the BTS3900 AC (220 V).

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Table 7-7 Power cables of the BTS3900 AC (220 V) cabinet SN

Description

P0 to P5

For details, see 7.3.5 RFU Power Cable.

P6

For details, see 7.3.4 Power Cable for the FAN Assembly.

P7 and P8

For details, see 7.3.3 BBU Power Cable.

P9 and P10

For details, see 7.3.2 DCDU-11A Power Cable.

P11 and P12

For details, see 7.3.1 Input Power Cable for the Cabinet.

7.2.2 Transmission Cable Connections This section introduces the principle of connecting transmission cables with different configuration.

Transmission Cable Connections for a Single-Mode Base Station In GSM only, UMTS only, or LTE only mode, use the E1/T1 cable, FE/GE cable, or optical cable to transmit data. This section describes transmission cable connections for each mode.

Configuration principles l

In LTE only mode, use preferentially the FE/GE optical cable to transmit data.

Application Scenario Table 7-8 describes the transmission cable connections for a single-mode base station in different transmission modes. Table 7-8 Transmission cable connections for a single-mode base station

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Trans missi on Mode

Mode Supp orted

Application Scenario

Legend

Trans missio n over the E1 Cable

GSM Only

Scenario 1: The UTRP is not configured. The transmission cable is connected to the E1/T1 port on the GTMU.

"1" in the Figure 7-3 shows the cable connections in scenario 1.

Scenario 2: The UTRP is configured. The transmission cables are connected to the E1/T1 ports on the GTMU and UTRP.


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Trans missi on Mode

Mode Supp orted


Legend

UMTS Only

Scenario 1: The UTRP is configured. The transmission cable is connected to the E1/T1 port on the UTRP.


Scenario 2: The UTRP is not configured. The transmission cable is connected to the E1/T1 port on the WMPT or UMPT.

Trans missio n over the FE Cable

LTE Only

The UMPT is configured. The transmission cable is connected to the E1/T1 port on the UMPT.

"3" in the Figure 7-3 shows the cable connections.

GSM Only

Scenario 1: The UTRPc is configured. The transmission cable is connected to the FE/GE optical port or electrical port on the UTRPc.


Scenario 2: The UTRP is not configured. The transmission cable is connected to the FE/GE optical port on the GTMU. Scenario 3: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port on the GTMU. UMTS Only

Scenario 1: The UTRPc is configured. The transmission cable is connected to the FE/GE optical port or electrical port on the UTRPc. Scenario 2: The UTRP2 is configured. The transmission cable is connected to the FE/GE optical port on the UTRP2.


Scenario 3: The UTRP9 is configured. The transmission cable is connected to the FE/GE electrical port on the UTRP9. Scenario 4: The UTRP is not configured. The transmission cable is connected to the FE/GE optical port or electrical port on the WMPT or UMPT. LTE Only

Scenario 1: The UTRPc is configured. The transmission cable is connected to the FE/GE optical port or electrical port on the UTRPc. Scenario 2: The UTRP is not configured. The transmission cable is connected to the FE/GE optical port or electrical port on the LMPT or UMPT.


Figure 7-3 shows the cable connections supported by each mode.

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Figure 7-3 Transmission cable connections for a single-mode base station

T1: 7.4.1 E1/T1 Cable

T2: 7.4.3 FE/GE Fiber Optic Cable -

Transmission Cable Connections for a Dual-Mode Base Station in Common Transmission Mode In GSM+UMTS, GSM+LTE, or UMTS+LTE mode, common transmission can be used. This section describes transmission cable connections for each mode.

Configuration Principles l

In GSM+UMTS mode using TDM common transmission, the transmission cables are connected to the GTMU or the UTRP on the GTMU.

l

In GSM+UMTS mode using IP common transmission, the transmission cables are connected to the WMPT or UMPT, or the UTRP on the UMTS side.

l

In GSM+LTE mode, the transmission cables are preferentially connected to the LMPT or UMPT, or the UTRP on the LTE side.

l

In UMTS+LTE mode, the transmission cables are preferentially connected to the LMPT or UMPT, or the UTRP on the LTE side.

Application Scenario Table 7-9 describes the transmission cable connections for a dual-mode base station in different transmission modes.

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Table 7-9 Transmission cable connections for a dual-mode base station in common transmission mode

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Trans missi on Mode

Mode Supp orted


Legend

TDM Comm on Trans missio n

GSM +UMT S

Scenario 1: The UTRP is not configured. The transmission cable is connected to the E1/T1 port on the GTMU. Scenario 2: The UTRP is configured. The transmission cable is connected to the E1/T1 port on the UTRP.


IP Over E1/T1 Comm on Trans missio n

GSM +UMT S

Scenario 1: The UTRP is not configured. The transmission cable is connected to the E1/T1 port on the WMPT or UMPT. The WMPT or UMPT is interconnected to the GTMU using the electrical port or optical port.


Scenario 2: The UTRP is configured. The transmission cable is connected to the E1/T1 port on the UTRP. The WMPT or UMPT is interconnected to the GTMU using the electrical port or optical port. GSM +LTE

The UTRP is configured. The transmission cable is connected to the E1/T1 port on the UTRP. The LMPT or UMPT is interconnected to the GTMU using the electrical port or optical port.


UMTS +LTE

The UTRP is configured. The transmission cable is connected to the E1/T1 port on the UTRP. The LMPT or UMPT is interconnected to the WMPT or UMPT using the electrical port or optical port.



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Trans missi on Mode

Mode Supp orted

IP over GSM FE/GE +UMT Comm S on Trans missio n


Legend



Scenario 2: The UTRP2 is configured. The transmission cable is connected to the FE/GE optical port on the UTRP2. The GTMU is interconnected to the UTRP using the optical port. Scenario 3: The UTRP is not configured. The transmission cable is connected to the FE/GE optical port on the WMPT or UMPT. The WMPT or UMPT is interconnected to the GTMU using the electrical port. Scenario 4: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port on the WMPT or UMPT. The WMPT or UMPT is interconnected to the GTMU using the optical port. Scenario 5: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port or optical port on the WMPT or UMPT. The WMPT or UMPT is interconnected to the GTMU through the backplane.

GSM +LTE

Scenario 1: The UTRPc is configured. The transmission cable is connected to the FE/GE optical port or electrical port on the UTRPc. Scenario 2: The UTRP is not configured. The transmission cable is connected to the FE/GE optical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the GTMU using the electrical port.


Scenario 3: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the GTMU using the optical port. Scenario 4: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port or optical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the GTMU through the backplane.

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Trans missi on Mode

Mode Supp orted


Legend

UMTS +LTE



Scenario 2: The UTRP is not configured. The transmission cable is connected to the FE/GE optical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT using the electrical port. Scenario 3: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT using the optical port. Scenario 4: The UTRP is not configured. The transmission cable is connected to the FE/GE electrical port or optical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT through the backplane. Route Backu p Mode with IP Comm on Trans missio n

GSM +UMT S

Scenario 1: The transmission cables are connected to the electrical ports on the WMPT or UMPT and the GTMU. The WMPT or UMPT is interconnected to the GTMU using the optical port. Scenario 2: The transmission cables are connected to the optical ports on the WMPT or UMPT and the GTMU. The WMPT or UMPT is interconnected to the GTMU using the electrical port.

GSM +LTE

Scenario 1: The transmission cables are connected to the electrical ports on the LMPT or UMPT and the GTMU. The LMPT or UMPT is interconnected to the GTMU using the optical port. Scenario 2: The transmission cables are connected to the optical ports on the LMPT or UMPT and the GTMU. The LMPT or UMPT is interconnected to the GTMU using the electrical port.



Scenario 3: The transmission cables are connected to the optical ports on the LMPT or UMPT and the GTMU. The LMPT or UMPT is interconnected to the GTMU through the backplane.

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Trans missi on Mode

Mode Supp orted


Legend

UMTS +LTE

Scenario 1: The transmission cables are connected to the electrical ports on the LMPT or UMPT and the WMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT using the optical port.


Scenario 2: The transmission cables are connected to the optical ports on the LMPT or UMPT and the WMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT using the optical port. Hybrid Trans missio n

UMTS +LTE

Scenario 1: The transmission cables are connected to the E1/T1 port on the WMPT or UMPT and the FE/GE optical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT using the electrical port.


Scenario 2: The transmission cables are connected to the E1/T1 port on the WMPT or UMPT and the FE/GE electrical port on the LMPT or UMPT. The LMPT or UMPT is interconnected to the WMPT or UMPT using the optical port.

Figure 7-4 shows the cable connections supported by each mode.

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Figure 7-4 Transmission cable connections for a dual-mode base station in common transmission mode

T1: 7.4.1 E1/T1 Cable

T2: 7.4.4 Interconnection Cable Between the FE Electrical Ports

T3: 7.4.3 FE/GE Fiber Optic Cable

T4: 7.4.5 Interconnection Cable Between FE Optical Ports

T5: 7.4.2 FE/GE Ethernet Cable

-

Transmission Cable Connections for a Dual-Mode Base Station in Non-Common Transmission Mode In GSM+UMTS, GSM+LTE, or UMTS+LTE mode, independent transmission can be used. This section describes transmission cable connections for each mode.

Application Scenario Table 7-10 describes the transmission cable connections for a dual-mode base station in different transmission modes. Issue 07 (2012-12-30)


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Table 7-10 Transmission cable connections for a dual-mode base station in non-common transmission mode Trans missi on Mode

Mode Supp orted


Legend

GSM E1/T1 +UMT S E1/ T1

GU

The transmission cables are connected to the E1/T1 port on the WMPT or UMPT and the GTMU.


GSM FE/GE +UMT S FE/ GE

GU

Scenario 1: The transmission cables are connected to the FE optical port on the WMPT or UMPT and the GTMU.


GSM E1/T1 +LTE FE/GE

GL

Scenario 2: The transmission cables are connected to the FE electrical port on the WMPT or UMPT and the GTMU. Scenario 1: The UTRP is not configured. The transmission cables are connected to the E1/T1 port on the GTMU and the FE optical or electrical port on the LMPT or UMPT. Scenario 2: The UTRP is configured on the GSM side. The transmission cables are connected to the E1/T1 ports on the GTMU and UTRP and to the FE electrical or optical port on the LMPT or UMPT.

UMTS FE/GE +LTE FE/GE

GL

UMTS E1/T1 +LTE FE/GE

UL

Scenario 1: The transmission cables are connected to the FE electrical port on the LMPT or UMPT and the GTMU. Scenario 2: The transmission cables are connected to the FE optical port on the LMPT or UMPT and FE electrical port on the GTMU. Scenario 1: The UTRP is not configured. The transmission cables are connected to the E1/T1 port on the WMPT or UMPT and the FE optical or electrical port on the LMPT or UMPT. Scenario 2: The UTRP is configured on the UMTS side. The transmission cable is connected to the E1/T1 port on the UTRP and to the FE electrical or optical port on the LMPT or UMPT.

UMTS FE/GE +LTE FE/GE

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UL

Scenario 1: The transmission cables are connected to the FE electrical port on the LMPT or UMPT and the WMPT or UMPT. Scenario 2: The transmission cables are connected to the FE optical port on the LMPT or UMPT and FE electrical port on the WMPT or UMPT.






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Figure 7-5 shows the cable connections supported by each mode. Figure 7-5 Transmission cable connections for a dual-mode base station in non-common transmission mode

T1: 7.4.1 E1/T1 Cable

T3: 7.4.3 FE/GE Fiber Optic Cable

T5: 7.4.2 FE/GE Ethernet Cable

-

Transmission Cable Connections for a Triple-Mode Base Station This section describes the transmission cable connections for a triple-mode base station. In this document, the two BBUs are described as BBU0 and BBU1 for better understanding. l

In an expanded base station, BBU0 is the BBU installed during the initial site construction, and BBU1 is the BBU installed during the capacity expansion.

l

In a new base station, BBU0 is the BBU working in GSM+UMTS or GSM+LTE mode, and BBU1 is the BBU working in LTE Only or UMTS Only mode.

l

The difference between the GL+UO scenario and UO+GL scenario is as follows: the GL +UO scenario is applicable to both an expanded base station and a new base station, while the UO+GL scenario is applicable only to an expanded base station.

Application Scenario Table 7-11 shows the transmission cable connections for a triple-mode base station. Table 7-11 Transmission cable connections for a triple-mode base station

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Triple-Mode Scenario

Mode Specification

Reference

GU (BBU 0)+LO (BBU 1) (BBU Not Cascaded)

BBU 0 works in GSM +UMTS mode and BBU 1 works in LTE only mode.

l Dual-mode includes common and non-


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Mode Specification

Reference

GL (BBU 0)+UO (BBU 1) (BBU Not Cascaded)

BBU 0 works in GSM+LTE mode and BBU 1 works in UMTS only mode.

UO (BBU 0)+GL (BBU 1) (BBU Not Cascaded)

BBU 0 works in UMTS only mode and BBU 1 works in GSM+LTE mode.

GO (BBU 0)+UL (BBU 1) (BBU Not Cascaded)

BBU 0 works in GSM only mode and BBU 1 works in UMTS+LTE mode.

common transmission. For details, see the Transmission Cable Connections for a DualMode Base Station in Common Transmission Mode and the Transmission Cable Connections for a DualMode Base Station in Non-Common Transmission Mode. l For details about the transmission cable connections for a singlemode base station, see the Transmission Cable Connections for a Single-Mode Base Station.

GU (BBU 0)+LO (BBU 1) (BBU Cascaded)

BBU 0 works in GSM +UMTS mode and BBU 1 works in LTE only mode.

For details, see the "1" or "2" in the Figure 7-6

GL (BBU 0)+UO (BBU 1) (BBU Cascaded)

BBU 0 works in GSM+LTE mode and BBU 1 works in UMTS only mode.

For details, see the "3" or "4" in the Figure 7-6

GU (BBU 0)+UL (BBU 1) (BBU Cascaded)

BBU 0 works in GSM +UMTS mode and BBU 1 works in UMTS+LTE mode.

For details, see the "5" in the Figure 7-6

Figure 7-6 shows the transmission cable connections for a triple-mode base station.

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Figure 7-6 Transmission cable connections for a triple-mode base station

T1:7.4.3 FE/GE Fiber Optic Cable

7.2.3 CPRI Cable Connections The CPRI cables are connected in star or chain topology. In star topology, each RFU is connected to the BBU separately. In chain topology, the RFUs are cascaded before connected to the BBU.

CPRI Cable Connections for a GSM Only Base Station This section describes the CPRI cable connections for a base station in GSM only mode.

CPRI Cable Connections for a GSM Only Base Station which is configured with only RFUs Figure 7-7 shows the cable connections in the following situation: The GRFU/DRFU with a star topology work in dual-band mode serving three sectors.

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Figure 7-7 CPRI cable connections (1)

Figure 7-8 shows the cable connections in the following situation: The GRFU/DRFU work in dual-band mode serving three sectors. A pair of two GRFUs/DRFUs working in the same sector with different bands are cascaded. Figure 7-8 CPRI cable connections (2)

CPRI Cable Connections for a GSM Only Base Station which is configured with RFUs and RRUs The GRFUs/DRFUs work in single-band mode and serve three sectors. The GRFUs/DRFUs in the same sector are cascaded. The RRU3004s/RRU3008s work in single-band mode, serve three sectors, and are connected in the star topology. Figure 7-9 shows the CPRI cable connections in this scenario. NOTE

If RFUs and RRUs can work in GSM mode, the GTMUb must be configured in a BBU3900. The RFUs working in GSM mode are connected to the GTMUb, and the RRUs working in GSM mode are connected to the UBRI.

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CPRI Cable Connections for a UMTS Only Base Station This section describes the CPRI cable connections for a base station in UMTS only mode.

CPRI Cable Connections for a UMTS Only Base Station which is configured with only RFUs Figure 7-10 shows the CPRI cable connections in the following situation: The BBU is configured with the WBBPb, the WRFUs work in single-band mode and do not support MIMO, and the base station supports a maximum of three sectors. Figure 7-10 CPRI cable connections (1)

Figure 7-11 shows the CPRI cable connections in the following situation: The BBU is configured with the WBBPb, the WRFUs work in single-band mode and supports MIMO or supports expanded bandwidth and carriers, the base station supports a maximum of three sectors, and two WRFUs work in the same sector are cascaded. Issue 07 (2012-12-30)


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Figure 7-12 shows the CPRI cable connections in the following situation: The BBU is configured with the WBBPd, the WRFUs work in single-band mode and supports MIMO or supports expanded bandwidth and carriers, the base station supports a maximum of three sectors, and two WRFUs work in the same sector are cascaded. Figure 7-12 CPRI cable connections (3)

CPRI Cable Connections for a UMTS Only Base Station which is configured with RFUs and RRUs The RFUs and RFUs work in single-band mode. The WRFUs serve three sectors, and support MIMO configuration or support expanded bandwidth and carriers. The WRFUs in the same sector are cascaded. The RRU3804s serve three sectors and are connected in the star topology. Figure 7-13 shows the CPRI cable connections in this scenario.

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CPRI Cable Connections for an LTE Only Base Station This section describes the CPRI cable connections for a base station in LTE only mode.

CPRI Cable Connections for a LTE Only Base Station which is configured with only RFUs Figure 7-14 shows the CPRI cable connections in the following situation: The LRFUs work in single-band mode, use 10 MHz or 20 MHz bandwidth, support 2T2R MIMO, and the base station supports a maximum of three sectors. Figure 7-14 CPRI cable connections (1)

Figure 7-15 shows the CPRI cable connections in the following situation: The LRFUs work in single-band mode, use 10 MHz bandwidth, support 4T4R MIMO, and each pair of RFUs serve one sector. Issue 07 (2012-12-30)


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Figure 7-16 shows the CPRI cable connections in the following situation: The LRFUs work in single-band mode, use 20 MHz bandwidth, support 4T4R MIMO, and each pair of RFUs serve one sector. Figure 7-16 CPRI cable connections (3)

Figure 7-17 shows the CPRI cable connections in the following situation: The MRFUs work in single-band mode, use 20 MHz bandwidth, support 2T2R MIMO, and each pair of MRFUs serve one sector.

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CPRI Cable Connections for a LTE Only Base Station which is configured with RFUs and RRUs The LRFUs work in single-band mode, use 20 MHz bandwidth, and support 4T4R MIMO. The LRFUs serve three sectors, and each pair of LRFUs serve one sector. The RRU3221s work in single-band mode, use 20 MHz bandwidth, and support 2T2R MIMO. The RRU3221s serve three sectors. Figure 7-18 shows the CPRI cable connections in this scenario. Figure 7-18 CPRI cable connections (3)

CPRI Cable Connections for a GSM+UMTS Base Station This section describes the CPRI cable connections for a base station in GSM+UMTS mode.

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CPRI Cable Connections for a GSM+UMTS Base Station which is configured with only RFUs Figure 7-19 shows the CPRI cable connections when the MRFUs with a dual-star topology work in single-band mode and support three sectors. Figure 7-19 CPRI cable connections (1)

Figure 7-20 shows the CPRI cable connections when the MRFUs with a dual-star topology work in single-band mode and support MIMO and three sectors. Figure 7-20 CPRI cable connections (2)

Figure 7-21 shows the CPRI cable connections in the following situation: The DRFUs/GRFUs with a star topology work in single-band mode, and serve six sectors. WRFUs work in singleband mode, support three sectors and two WRFUs in the same sector are cascaded.

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CPRI Cable Connections for a GSM+UMTS Base Station which is configured with RFUs and RRUs NOTE


Figure 7-22 shows the CPRI cable connections when a GU base station is configured with RFUs and RRUs and meets the following conditions: l

The GRFUs/DRFUs work in single-band mode and serve three sectors. Two GRFUs/ DRFUs in the same sector are cascaded.

l

The RRU3908s work in single-band mode, serve three sectors, and are connected in the dual-star topology.


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CPRI Cable Connections for a GSM+LTE Base Station This section describes the CPRI cable connections for a base station in GSM+LTE mode.

CPRI Cable Connections for a GSM+LTE Base Station which is configured with only RFUs Figure 7-23 shows the CPRI cable connections when the MRFUs with a dual-star topology work in single-band mode and support three sectors. Figure 7-23 CPRI cable connections (1)

Figure 7-24 shows the CPRI cable connections in the following situation: The DRFUs/GRFUs work in single-band mode and two pairs of DRFUs/GRFUs in the same sector are cascaded. The LRFUs with a star topology work in single-band mode, support three sectors and 2T2R MIMO. Figure 7-24 CPRI cable connections (2)

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CPRI Cable Connections for a GSM+LTE Base Station which is configured with RFUs and RRUs Figure 7-25 shows the CPRI cable connections in this scenario. l

The GRFUs/DRFUs work in single-band mode, and serve three sectors. The GRFUs/ DRFUs in the same sector are cascaded.

l

The RRU3908s work in single-band mode, serve three sectors, and are connected in the dual-star topology. NOTE



CPRI Cable Connections for a UMTS+LTE Base Station This section describes the CPRI cable connections for a base station in UMTS+LTE mode.

CPRI Cable Connections for a UMTS+LTE Base Station which is configured with only RFUs Figure 7-26 shows the CPRI cable connections in the following situation: The WRFUs work in single-band mode, support a maximum of three sectors, and do not support MIMO. The LRFUs with a star topology work in single-band mode, use 10 MHz bandwidth, and support 2T2R MIMO.

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Figure 7-27 shows the CPRI cable connections in the following situation: The WRFUs work in single-band mode, support a maximum of three sectors, and support MIMO. Three LRFUs with a star topology in the secondary cabinet work in single-band mode, use 10 MHz bandwidth, and support three sectors and 2T2R MIMO. Figure 7-27 CPRI cable connections (2)

Figure 7-28 shows the CPRI cable connections in the following situation: The WRFUs work in single-band mode and supports MIMO or supports expanded bandwidth and carriers. The LRFUs with a star topology work in single-band mode, use 10 MHz bandwidth, support 2T2R MIMO, and each pair of RFUs serve one sector.

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CPRI Cable Connections for a UMTS+LTE Base Station which is configured with RFUs and RRUs Figure 7-29 shows the CPRI cable connections in this scenario. l

The WRFUs work in dual-band mode. Both the WRFUs working in the high frequency band and the WRFUs working in the low frequency band serve three sectors. The WRFUs are connected in the star topology.

l

The RRU3221s work in single-band mode, serve three sectors, use 10 MHz bandwidth, support 2T2R MIMO, and are connected in the star topology.


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A triple-mode base station solution can support the following six scenarios: GU+LO (BBUs not interconnected), GL+UO (BBUs not interconnected), UO+GL (BBUs not interconnected), and GU+L (UCIU+UMPT). A single baseband unit (BBU) can support a maximum of two modes, and two BBUs are required for a Triple-mode base station. NOTE


GU+LO (BBUs not Interconnected) In the GU+LO (BBUs not interconnected) scenario, BBU 0 works in GSM+UMTS mode. CPRI Cable Connections for a GSM+UMTS Base Station shows the CPRI cable connections in this scenario. In the GU+LO (BBUs not interconnected) scenario, BBU 1 works in LTE only mode. CPRI Cable Connections for an LTE Only Base Station shows the CPRI cable connections in this scenario.

GL+UO (BBUs not Interconnected) In the GL+UO (BBUs not interconnected) scenario, BBU 0 works in GSM+LTE mode. CPRI Cable Connections for a GSM+LTE Base Station shows the CPRI cable connections in this scenario. In the GL+UO (BBUs not interconnected) scenario, BBU 1 works in UMTS only mode. CPRI Cable Connections for a UMTS Only Base Station shows the CPRI cable connections in this scenario.

UO+GL (BBUs not Interconnected) In the GL+UO (BBUs not interconnected) scenario, BBU 0 works in UMTS only mode. CPRI Cable Connections for a UMTS Only Base Station shows the CPRI cable connections in this scenario. In the GL+UO (BBUs not interconnected) scenario, BBU 1 works in GSM+LTE mode. CPRI Cable Connections for a GSM+LTE Base Station shows the CPRI cable connections in this scenario.

GU+L (UCIU+UMPT) In the GU+L (UCIU+UMPT) scenario where the base station is configured with only RFUs, BBU 0 and BBU 1 are interconnected by UCIU and UMPT to support the GSM, UMTS, and LTE modes. Figure 7-30 shows the CPRI cable connections in this scenario.

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Figure 7-30 CPRI cable connections in the GU+L (UCIU+UMPT) scenario(1)

In the GU+L (UCIU+UMPT) scenario where the base station is configured with RFUs and RRUs, BBU 0 and BBU 1 are interconnected by UCIU and UMPT to support the GSM, UMTS, and LTE modes. Figure 7-31 shows the CPRI cable connections in this scenario. Figure 7-31 CPRI cable connections in the GU+L (UCIU+UMPT) scenario(2)

7.2.4 RF Cable Connections This section describes the RF cable connections for various types of RF modules.

RF Cable Connections for DRFUs The DRFU supports two carriers. The following description is based on the RF cable connections for DRFUs with a single sector. Issue 07 (2012-12-30)


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Cable Connections in 1T2R Mode With one TX channel and two RX channels, the following items are configured for one carrier: l

A pair of dual-polarized antennas

l

One DRFU

Figure 7-32 describes the RF cable connections. Figure 7-32 Cable connections in 1T2R mode (1)

With one TX channel and two RX channels, the following items are configured for two carriers: l


l

One DRFU

Figure 7-32 shows the RF cable connections. With one TX channel and two RX channels, the following items are configured for four carriers: l


l

Two DRFUs

Figure 7-33 describes the RF cable connections.

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Figure 7-33 Cable connections in 1T2R mode (2)

Cable Connections in 2T2R Mode With two TX channels and two RX channels, the following items are configured for one carrier: l


l

One DRFU

Figure 7-32 shows the RF cable connections. With two TX channels and two RX channels, the following items are configured for two carriers: l


l

Two DRFUs

Figure 7-33 shows the RF cable connections.

RF Cable Connections for GRFUs The GRFU supports six carriers. The following description is based on the RF cable connections for GRFUs with a single sector. The GRFU supports only the 1T2R configuration.

Cable Connections with Three Carriers The following items are configured for three carriers: l Issue 07 (2012-12-30)

A pair of dual-polarized antennas Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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One GRFU

Figure 7-34 describes the RF cable connections. Figure 7-34 Cable connections with three carriers

Cable Connections with Nine Carriers The following items are configured for nine carriers: l


l

Two GRFUs


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Figure 7-35 Cable Connections with Nine Carriers

Cable Connections with 14 Carriers The following items are configured for 14 carriers: l

Two pairs of dual-polarized antennas

l

Three GRFUs


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Figure 7-36 Cable connections with 14 carriers

Cable Connections with 24 Carriers The following items are configured for 24 carriers: l


l

Four GRFUs


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Figure 7-37 Cable connections with 24 carriers

RF Cable Connections for WRFUs The WRFU supports four carriers. The following description is based on the RF cable connections for WRFUs with a single sector.

Cable Connections in 1T2R Mode With one TX channel and two RX channels, the following items are configured for one to four carriers: l


l

One WRFU


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With one TX channel and two RX channels, the following items are configured for five to eight carriers: l


l

Two WRFUs


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Cable Connections in 2T2R Mode With two TX channels and two RX channels, the following items are configured for one to four carriers: l


l

Two WRFUs


Cable Connections in 2T4R Mode With two TX channels and four RX channels, the following items are configured for one to four carriers: l


l

Two WRFUs


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Figure 7-40 Cable connections in 2T4R mode

Cable Connections in 2x2 MIMO Mode The base station in UMTS only mode supports 2x2 MIMO. Figure 7-39 shows the cable connections.

RF Cable Connections for WRFUd The WRFUd supports a maximum of six carriers. The following description is based on the RF cable connections for WRFUds with a single sector.



l

One WRFUd


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Figure 7-41 Cable connections in 2T2R (I)

With two TX channels and two RX channels, the following items are configured for five to eight carriers: l


l

Two WRFUds.

Cable Connections in 4T4R Mode With four TX channels and four RX channels, the following items are configured for one to four carriers: l


l

Two WRFUds


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Figure 7-42 Cable connections in 4T4R mode (II)

RF Cable Connections for WRFUe The WRFUe supports a maximum of six carriers. The following description is based on the RF cable connections for WRFUes with a single sector.



l

One WRFUe


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With two TX channels and two RX channels, the following items are configured for five to eight carriers: l


l

Two WRFUes.



l

Two WRFUes


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RF Cable Connections for LRFUs The LRFU supports a single carrier. The following description is based on the RF cable connections for LRFUs supporting a single sector. The LRFU supports only the 2T2R configuration.

RF Cable Connections in 2T2R Mode In 2T2R mode, the following items are configured: l

A dual-polarized antenna

l

An LRFU

Figure 7-45 shows RF cable connections.

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Figure 7-45 RF cable connections in 2T2R mode

RF Cable Connections in 4T4R mode In 4T4R mode, the following items are configured: l

Two dual-polarized antennas

l

Two LRFUs


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RF Cable Connections for LRFUe The LRFUe supports one carrier. The following description is based on the RF cable connections for LRFUes with a single sector.



l

One LRFUe


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l

Two LRFUes


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RF Cable Connections for MRFUs The MRFU supports six carriers. The following description is based on the RF cable connections for MRFUs with a single sector. The MRFU supports only the 1T2R configuration.

RF Cable Connections in G4U2 Mode When the GSM system is configured with four carriers and the UMTS system is configured with two carriers, the following items are required: l


l

One MRFU

Figure 7-49 shows the RF cable connections in G4U2 mode.

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Figure 7-49 RF cable connections in G4U2 mode

RF Cable Connections in G6U2 Mode When the GSM system is configured with six carriers and the UMTS system is configured with two carriers, the following items are required: l


l

Two MRFUs

Figure 7-50 shows the RF cable connections in G6U2 mode.

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Figure 7-50 RF cable connections in G6U2 mode

RF Cable Connections in Single-mode Scenarios In GSM only mode, a single MRFU supports a maximum of six carriers. Figure 7-49 shows the corresponding RF cable connections. In UMTS only mode, a single MRFU supports a maximum of four carriers. Figure 7-49 shows the corresponding RF cable connections.

RF Cable Connections for MRFUd The MRFUd supports a maximum of eight GSM carriers, six UMTS carriers, or two LTE carriers. The following description is based on the RF cable connections for MRFUds with a single sector.

Cable Connections in 2T2R Mode With two TX channels and two RX channels, the following items are configured: l


l

One MRFUd


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Figure 7-51 Cable connections in 2T2R

Cable Connections in 4T4R Mode With four TX channels and four RX channels, the following items are configured: l


l

Two MRFUds


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Figure 7-52 Cable connections in 4T4R mode

RF Cable Connections for MRFUe The MRFUe supports a maximum of eight GSM carriers, four UMTS carriers, or two LTE carriers. The following description is based on the RF cable connections for MRFUes with a single sector.

Cable Connections in 1T2R Mode With one TX channel and two RX channels, the following items are configured: l


l

One MRFUe


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Figure 7-53 Cable connections in 1T2R

Cable Connections in 2T4R Mode With two TX channels and four RX channels, the following items are configured: l


l

Two MRFUes


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RF Cable Connections for CRFUd The CRFUd supports a single carrier. The following description is based on the RF cable connections for CRFUd with a single sector.

Cable Connections in 2T2R Mode In 2T2R mode, the following items are configured: l


l

One CRFUd


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RF Cable Connections in 4T4R mode In 4T4R mode, the following items are configured: l


l

Two CRFUds


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RF Cable Connections for Mixed RFU Configuration Different models of RFUs can be configured in the same base station to expand the system capacity or supports multimode radio access technologies (RATs). This section describes the RF cable connections for mixed RFU configuration.

Cable Connections Table 7-12 RF cable connections for mixed RFU configuration

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Initial Scenario

Mixed Configuration Scenario

Illustration

In UMTS 3x2 mode, each sector is configured with one WRFU of 40 W. This WRFU supports two UMTS carriers.

In UMTS 3x6 mode, each sector is configured with one WRFU of 80 W. This WRFU supports four UMTS carriers.

See illustration 1 in Figure 7-57.

In GSM S4/4/4 mode, each sector is configured with one MRFU V1 that supports four GSM carriers.

To support 3x5 MHz of LTE, one MRFU V2 is added to each sector. The MRFU V2 and MRFU V1 are configured to support one LTE carrier.



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Initial Scenario

Mixed Configuration Scenario

Illustration

In GSM S8/8/8 mode, each sector is configured with two GRFU V2 (1800 MHz). Each GRFU V2 (1800 MHz) supports four GSM carriers.

To support GSM S8/8/8+LTE 3x15 MHz, one GRFU V2 (1800 MHz) in each sector is replaced with one MRFUd (1800 MHz). The MRFUd (1800 MHz) works in GL mode, supporting four GSM carriers and one LTE carrier.


Illustration of Cable Connections Figure 7-57 RF cable connections for mixed RFU configuration

7.2.5 Inter-BBU Signal Cable Connections Two BBUs in a triple-mode base station can be cascaded to expand the mode supporting capability, two BBUs in a single-mode base station can be cascaded to expand the service processing capability of a single mode. Issue 07 (2012-12-30)


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When two BBUs in a base station are cascaded to achieve the GUL triple-mode, BBU0 is the root BBU, and BBU1 is the leaf BBU.

UCIU+UMPT In a triple-mode base station, the UCIU in BBU0 can be connected to the UMPT in BBU1 to achieve the GUL triple-mode. In a UMTS only base station, the UCIU in BBU0 can be connected to the UMPT in BBU1 to expand the UMTS service processing capacity. Any port from M0 to M4 on the UCIU in BBU0 can be connected to the CI port on the UMPT in BBU1, as shown in Figure 7-58. NOTE

In UCIU+UMPT mode, the UMPT must be configured as the main control board of BBU1. Table 7-13 lists the BBU configurations in UCIU+UMPT mode.

Table 7-13 BBU configurations Scenario Description

BBU0

BBU1


GU

L

GL

U

GU

UL

U

U

Single-Mode Scenario

Figure 7-58 Signal cable connection between the UCIU and the UMPT

WBBPf+WBBPf In the UCIU+UMPT mode, the WBBPfs in the two BBUs can be connected to transmit baseband data. As shown in Figure 7-58, the HEI ports on the WBBPfs in BBU0 and BBU1 are connected. NOTE

In SRAN7.0, only the WBBPf in slot 2 or 3 of a BBU can be connected to the WBBPf in another BBU.

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Figure 7-59 Signal cable connection between the WBBPfs

7.2.6 Monitoring Signal Cable Connections The monitoring signal cable connections vary depending on the BTS3900 cabinet type and number of UPEUs and UEIUs configured in the BBU. NOTE

If any equipment in the following figures is not configured on site, ignore the equipment and its cable connections.

Monitoring Signal Cable Connections of the BTS3900 DC (-48V) cabinet The monitoring signal cable connections of the BTS3900 DC (-48V) cabinet are shown in Figure 7-60, and the monitoring signal cables are described in Table 7-14. Figure 7-60 BTS3900 DC (-48V) Signal Cables

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Table 7-14 Monitoring Signal Cables of the BTS3900 DC (-48V) cabinet Cable SN

Description

S1 and S2

Refer to 7.5.10 Signal Cable for the ELU.

S3

Refer to 7.5.2 Monitoring Signal Cable for the Fan Assembly.

S4

Refer to 7.5.3 Fan Assembly Cascade Signal Cable.

S5

Refer to 7.5.4 Monitoring Signal Cable for the EMU.

S6 and S7

Refer to 7.5.5 Monitoring Signal Cable for the GATM.

Monitoring Signal Cable Connections of the BTS3900 AC Cabinet The monitoring signal cable connections of the BTS3900 AC cabinet are shown in Figure 7-61, and the monitoring signal cables are described in Table 7-15. Figure 7-61 Monitoring signal cable connections of the BTS3900 AC cabinet

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Table 7-15 Monitoring signal cables of the BTS3900 AC cabinet Cable SN

Description

S1 and S2

For details, see 7.5.10 Signal Cable for the ELU.

S3

For details, see 7.5.2 Monitoring Signal Cable for the Fan Assembly.

S4

For details, see 7.5.3 Fan Assembly Cascade Signal Cable.

S5 and S6

For details, see 7.5.1 Monitoring Signal Cable for the PMU.

S7

For details, see 7.5.4 Monitoring Signal Cable for the EMU.

S8 and S9

For details, see 7.5.5 Monitoring Signal Cable for the GATM.

7.3 Power Cables The power cables of the BTS3900 consist of the input power cable for the BTS3900 cabinet, DCDU-11A power cable, BBU power cable, power cable for the fan box, RFU power cable, and GATM power cable.

7.3.1 Input Power Cable for the Cabinet The input power cable for a cabinet feeds DC power into the cabinet. The maximum length of an input power cable is 15 m (49.21 ft).

-48 V Power Cable The -48 V power cable feeds -48 V DC power into the cabinet. Figure 7-62 shows a -48 V power cable, and Table 7-16 describes a -48 V power cable. Figure 7-62 -48 V power cable

(1) OT terminal

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Table 7-16 Description of a -48 V power cable Cable

Color

Cross-Sectional Area

Aperture of the OT Terminal

-48 V power cable

Blue

35 mm2 for 1 x 160 A power

M6

Black

16 mm2 for 2 x 80 A power

AC Power Cable The BTS3900 cabinet supports three types of AC power input: 220 V AC single-phase, 220 V AC three-phase, and 110 V AC dual-live-wire power. The AC power cable feeds AC power into the cabinet. Figure 7-63 shows an AC power cable. Table 7-17 describes an AC power cable. Figure 7-63 220 V AC single-phase power cable

(1) OT terminal

NOTE

Different types of 220 V AC power cable have different structures and consist of different number of internal wires. Figure 7-63 shows a 220 V AC single-phase power cable.

Table 7-17 Description of a 220 V AC power cable Cable

Cable Name



220 V AC threephase power cable

L1 wire

4 mm2

M6

L2 wire L3 wire N wire

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220 V AC singlephase power cable

L wire

110 V dual-livewire power cable

L1 wire

16 mm2

N wire 16 mm2

L2 wire


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The colors and structures of cables delivered by Huawei vary depending on the country and area. If cables are purchased at local markets, the cables must comply with the local rules and regulations.

7.3.2 DCDU-11A Power Cable The power equipment (AC/DC) feeds -48 V DC power into the DCDU-11A by using a DCDU-11A power cable.

Exterior Figure 7-64 shows a DCDU-11A power cable. Figure 7-64 DCDU-11A power cable

(1) OT terminal

Description Table 7-18 describes the DCDU-11A power cable. Table 7-18 DCDU-11A power cable Power Equipment Type

Color



Power equipment (AC/DC)

Blue

16 mm2

M6

Black

7.3.3 BBU Power Cable Through a BBU power cable, the DCDU-11A feeds -48 V DC power into a BBU.

Exterior Figure 7-65 shows a BBU power cable.

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Figure 7-65 BBU power cable

(1) 3V3 power connector

(2) Tool-less female connector (pressfit type)

Pin Assignment Table 7-19 describes the pin assignment for the wires of the BBU power cable. Table 7-19 Pin assignment for the wires of the BBU power cable Wire

X1 End

X2 End

Color Most Area

Other Area

W1

A3

B1

Black

Blue

W2

A1

B2

Blue

Grey

7.3.4 Power Cable for the FAN Assembly The power cable for the FAN box feeds -48 V DC power into the fan assembly.

Exterior Figure 7-66 shows a power cable for the fan assembly. Figure 7-66 Power cable for the fan assembly


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Pin Assignment Table 7-20 describes the pin assignment for the wires of the power cable for the fan assembly. Table 7-20 Pin assignment for the wires of the power cable for the fan assembly Wire

X1 End

X2 End

Color Most Area

Other Area

W1

A3

B1

Black

Blue

W2

A1

B2

Blue

Grey

7.3.5 RFU Power Cable The RFU power cable feeds -48 V DC power into the RFU.

Exterior Figure 7-67 shows an RFU power cable. Figure 7-67 RFU power cable



Pin Assignment Table 7-21 describes the pin assignment for the wires of the RFU power cable. Table 7-21 Pin assignment for the wires of the RFU power cable Wire

W1 Issue 07 (2012-12-30)

X1 End

A3

X2 End

B1

Color Most Area

Other Area

Black

Blue


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Wire

W2

X1 End

A1

X2 End

B2

Color Most Area

Other Area

Blue

Grey

7.3.6 GATM Power Cable The GATM power cable feeds -48 V DC power into the GATM.

Exterior Figure 7-68 shows a GATM power cable. Figure 7-68 GATM power cable



Pin Assignment Table 7-22 describes the pin assignment for the wires of the GATM power cable. Table 7-22 Pin assignment for the wires of the GATM power cable Wire

X1 End

X2 End

Color Most Area

Other Area

W1

A1

B2

Blue

Grey

W2

A3

B1

Black

Blue

7.4 BTS3900 Transmission Cable The BTS3900 transmission cable includes E1/T1 cable, FE/GE cable, FE/GE Fiber Optic Cable, Interconnection Cable Between the FE Electrical Ports, and Interconnection Cable Between the FE Optical Ports. Issue 07 (2012-12-30)


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7.4.1 E1/T1 Cable An E1/T1 cable transmits baseband signals from BBU to the external transmission equipment. The maximum length of a E1/T1 cable is 50 m (164.04 ft).

Exterior The E1/T1 cable is of three types: 75-ohm E1 coaxial cable, 120-ohm E1 twisted pair cable, and 100-ohm T1 twisted pair cable. One end of the E1 cable is a DB26 male connector. The connector at the other end of the cable is prepared on site based on site requirements. Figure 7-69 shows an E1/T1 cable. Figure 7-69 E1/T1 signal cable

(1) DB26 male connector

Table 7-23 lists different types of 75 ohm E1 coaxial cables. Table 7-23 Different types of 75 ohm E1 coaxial cables Cable

One End

The Other End

75 ohm E1 coaxial cable

DB26 male connector

L9 male connector L9 female connector SMB female connector BNC male connector SMZ male connector SMZ female connector

Pin Assignment Table 7-24, Table 7-25, and Table 7-26 describe the pin assignment for the wires of the E1/T1 cable. Issue 07 (2012-12-30)


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Table 7-24 Pin assignment for the wires of the 75-ohm E1 coaxial cable Pin on the DB26 Male Connector

Type(1)

Coaxial Unit No.

Wire Label

X1.1

Tip

1

RX1+

X1.2

Ring

X1.3

Tip

X1.4

Ring

X1.5

Tip

X1.6

Ring

X1.7

Tip

X1.8

Ring

X1.19

Tip

X1.20

Ring

X1.21

Tip

X1.22

Ring

X1.23

Tip

X1.24

Ring

X1.25

Tip

X1.26

Ring

RX13

RX2+ RX2-

5

RX3+ RX3-

7

RX4+ RX4-

2

TX1+ TX1-

4

TX2+ TX2-

6

TX3+ TX3-

8

TX4+ TX4-

NOTE

(1) "Tip" refers to a wire in the E1 coaxial cable and "Ring" refers to an external conductor of the cable.

Table 7-25 Pin assignment for the wires of the 120-ohm E1 twisted pair cable

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Pin on the DB26 Male Connector

Wire Color

Wire Type

Wire Label

X.1

Blue

Twisted pair

RX1+

X.2

White

X.3

Orange

X.4

White

X.5

Green

X.6

White

RX1Twisted pair

RX2+ RX2-

Twisted pair


RX3+ RX3-

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Wire Color

Wire Type

Wire Label

X.7

Brown

Twisted pair

RX4+

X.8

White

X.19

Gray

X.20

White

X.21

Blue

X.22

Red

X.23

Orange

X.24

Red

X.25

Green

X.26

Red

RX4Twisted pair

TX1+ TX1-

Twisted pair

TX2+ TX2-

Twisted pair

TX3+ TX3-

Twisted pair

TX4+ TX4-

Table 7-26 Pin assignment for the wires of the 100-ohm T1 twisted pair cable

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Wire Color

Wire Type

Wire Label

X.1

Blue and white

Twisted pair

RX1+

X.2

White and blue

X.3

Orange and white

X.4

White and orange

X.5

Green and white

X.6

White and green

X.7

Brown and white

X.8

White and brown

X.19

Gray and white

X.20

White and gray

X.21

Blue and red

X.22

Red and blue

X.23

Orange and red

X.24

Red and orange

X.25

Green and red

RX1Twisted pair

RX2+ RX2-

Twisted pair

RX3+ RX3-

Twisted pair

RX4+ RX4-

Twisted pair

TX1+ TX1-

Twisted pair

TX2+ TX2-

Twisted pair

TX3+ TX3-

Twisted pair


TX4+

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Wire Color

X.26

Red and green

Wire Type

Wire Label TX4-

7.4.2 FE/GE Ethernet Cable The FE/GE Ethernet cable connects the BBU to the external transmission equipment through routing equipment and transmits baseband signals. The maximum length of an FE/GE Ethernet cable is 50 m (164.04 ft).

Exterior The FE/GE Ethernet cable is a shielded straight-through cable, which has an RJ45 connector at each end. Figure 7-70 shows an FE/GE Ethernet cable. Figure 7-70 FE/GE Ethernet cable

(1) RJ45 connector

Pin Assignment Table 7-27 describes the pin assignment for the wires of the FE/GE Ethernet cable. Table 7-27 Pin assignment for the wires of the FE/GE Ethernet cable

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Pin on the RJ45 Connector

Wire Color

Wire Type


X1.2

Orange

Twisted pair

X2.2

X1.1

White and orange

X1.6

Green

X1.3

White and green

X1.4

Blue

X1.5

White and blue

X1.8

Brown

X2.1 Twisted pair

X2.6 X2.3

Twisted pair

X2.4 X2.5

Twisted pair


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Wire Color

X1.7

White and brown

Wire Type

Pin on the RJ45 Connector X2.7

7.4.3 FE/GE Fiber Optic Cable An FE/GE fiber optic cable transmits optical signals between the BBU3900 and the transmission equipment. This cable is optional. The maximum length of an FE/GE fiber optic cable is 20 m (65.62 ft).

Exterior The FE/GE fiber optic cable has an LC connector at one end and an FC connector, SC connector, or LC connector at the other end, as shown in Figure 7-71, Figure 7-72, Figure 7-73. Figure 7-71 FE/GE fiber optic cable (with the FC and LC connectors)

Figure 7-72 FE/GE fiber optic cable (with the SC and LC connectors)

Figure 7-73 FE/GE fiber optic cable (with the LC connectors)

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CAUTION To connect a BBU3900 and a transmission device by using FE/GE optical fiber patch cords, adhere to the following rules: l

The TX port on the BBU3900 must be connected to the RX port on the transmission equipment.

l

The RX port on the BBU3900 must be connected to the TX port on the transmission equipment.

7.4.4 Interconnection Cable Between the FE Electrical Ports This cable connects the FE electrical ports on two main control boards to enable IP-based cotransmission.

Exterior The interconnection cable between the FE electrical ports has an RJ45 connector at each end, as shown in Figure 7-74. Figure 7-74 Interconnection cable between FE electrical ports

(1) RJ45 connector

7.4.5 Interconnection Cable Between FE Optical Ports This cable connects the FE optical ports on the GTMU and WMPT to achieve co-transmission in IP mode.

Exterior The interconnection cable between the FE optical ports has an LC connector at each end, as shown in Figure 7-75. Figure 7-75 Interconnection cable between FE optical ports

(1) LC connector

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7.5 Signal Cables The BTS3900 signal cables includes the monitoring signal cable for the PMU, monitoring signal cable for the fan box, monitoring signal cable for the EMU, BBU alarm cable, GPS clock signal cable, and signal cable for the ELU.

7.5.1 Monitoring Signal Cable for the PMU The monitoring signal cable for the PMU transmits the environment alarm information collected by the PMU to the BBU.

Exterior Figure 7-76 shows the monitoring signal cable for the PMU. Figure 7-76 Monitoring signal cable for the PMU

(1) RJ45 connector

Pin Assignment Table 7-28 describes the pin assignment for the wires of the monitoring signal cable for the PMU. Table 7-28 Pin assignment for the wires of the monitoring signal cable for the PMU

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X1 End

X2 End

Wire Color

Wire Type

X1.1

X2.1

White

Twisted pair

X1.2

X2.2

Orange

X1.3

X2.3

White

X1.6

X2.6

Green

X1.5

X2.5

White

X1.4

X2.4

Blue

X1.7

X2.7

White

X1.8

X2.8

Brown


Twisted pair

Twisted pair

Twisted pair

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7.5.2 Monitoring Signal Cable for the Fan Assembly The monitoring signal cable for the fan assembly is used for the BBU to monitor the running status of the fan assembly.

Exterior Figure 7-77 shows the monitoring signal cable for the fan assembly. Figure 7-77 Monitoring signal cable for the fan assembly

(1) RJ45 connector

Pin Assignment Table 7-29 describes the pin assignment for the wires of the monitoring signal cable for the fan assembly. Table 7-29 Pin assignment for the wires of the monitoring signal cable for the fan assembly X1 End

X2 End

Color

Type

X1.1

X2.1

White

Twisted pair cable

X1.2

X2.2

Orange

X1.3

X2.3

White

X1.6

X2.6

Green

X1.5

X2.5

White

X1.4

X2.4

Blue

X1.7

X2.7

White

X1.8

X2.8

Brown

Twisted pair cable

Twisted pair cable

Twisted pair cable

7.5.3 Fan Assembly Cascade Signal Cable Fan assembly cascade signal cable is used to connect two fan assemblies.

Exterior Figure 7-78 shows the fan assembly cascade signal cable. Issue 07 (2012-12-30)


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Figure 7-78 fan assembly cascade signal cable

(1) RJ45 connector

Pin Assignment Table 7-30 describes the pin assignment of the fan assembly cascade signal cable. Table 7-30 Pin assignment of the fan assembly cascade signal cable X1 End

X2 End

Color

Type

X1.1

X2.1

White

Twisted pair cable

X1.2

X2.2

Orange

X1.3

X2.3

White

X1.6

X2.6

Green

X1.5

X2.5

White

X1.4

X2.4

Blue

X1.7

X2.7

White

X1.8

X2.8

Brown

Twisted pair cable

Twisted pair cable

Twisted pair cable

7.5.4 Monitoring Signal Cable for the EMU The monitoring signal cable for the EMU transmits monitoring signals from the EMU to the BBU.

Exterior Figure 7-79 shows the monitoring signal cable for the EMU.

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Figure 7-79 Monitoring signal cable for the EMU

(1) RJ45 connector


Pin Assignment Table 7-31 describes the pin assignment for the wires of the monitoring signal cable for the EMU. Table 7-31 Pin assignment for the wires of the monitoring signal cable for the EMU Pin on the RJ45 Connector


Wire Color

Wire Type

Label

X1.1

X2.3

White

Twisted pair

TX+

X1.2

X2.7

Orange

X1.5

X2.6

White

X1.4

X2.2

Blue

TXTwisted pair

RXRX+

7.5.5 Monitoring Signal Cable for the GATM This cable connects the BBU and GATM, enabling the BBU to transmit control signals to the GATM and enabling the GATM to report alarms to the BBU.

Structure Figure 7-80 shows the monitoring signal cable for the GATM.

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Figure 7-80 Monitoring signal cable for the GATM

(1) RJ45 connector

Pin Assignment Table 7-32 describes the pin assignment for the wires of the monitoring signal cable for the GATM. Table 7-32 Pin assignment for the wires of the monitoring signal cable for the GATM X1 End

X2 End

Wire Color

Wire Type

X1.1

X2.1

White

Twisted pair

X1.2

X2.2

Orange

X1.3

X2.3

White

X1.6

X2.6

Green

X1.5

X2.5

White

X1.4

X2.4

Blue

X1.7

X2.7

White

X1.8

X2.8

Brown

Twisted pair

Twisted pair

Twisted pair

7.5.6 BBU interconnection signal cable The BBU interconnection signal cable connects BBU0 and BBU1 to forward information between the BBUs.

Cable Type BBU interconnection signal cables are classified into different types based on their functions, as listed in Table 7-33.

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Table 7-33 Cable type Cable

Function

Installation Position

BBU interconnection signal cable

Forwards control and synchronization information from one BBU to another

Connects the UMPT and the UCIU

Forwards baseband information from one BBU to another

Interconnects two WBBPf boards

Exterior The BBU interconnection signal cable connecting UCIU to UMPT forwards control and synchronization information from one BBU to another. When two BBUs are installed in the same cabinet, the BBU interconnection signal cable is 2 meters long, as shown in Figure 7-81. When two BBUs are installed in two cabinets, the BBU interconnection signal cable is 10 meters long, as shown in Figure 7-82. Figure 7-81 BBU interconnection signal cable (1)

(1) DLC connector

(2) Breakout cable

Figure 7-82 BBU interconnection signal cable (2)

(1) DLC connector

(2) Armoured cable

(3) Breakout cable

The BBU interconnection signal cable connecting WBBPf to WBBPf forwards baseband information from one BBU to another, as shown in Figure 7-83. When two BBUs are installed in the same cabinet, the BBU interconnection signal cable is 2 meters long. When two BBUs are installed in two cabinets, the BBU interconnection signal cable is 10 meters long.

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Figure 7-83 BBU interconnection signal cable (3)

(1) QSFP connector

(2) QSFP connector

7.5.7 BBU Alarm Cable A BBU alarm cable transmits alarm signals from external alarm equipment to a BBU. The maximum length of a BBU alarm cable is 20 m (65.62 ft).

Exterior The BBU alarm cable has an RJ45 connector at each end, as shown in Figure 7-84. One RJ45 connector at one end, however, may be removed and an appropriate terminal may be added according to the field requirements. Figure 7-84 BBU alarm cable

(1) RJ45 connector

Pin Assignment Table 7-34 shows the wire sequence of the BBU alarm cable. Table 7-34 Pin assignment for the wires of the BBU alarm cable

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BBU Alarm Port

Pin on the RJ45 Connecto r

Wire Color

Wire Type


Description

EXTALM1

X1.1

White and orange

Twisted pair

X2.1

Boolean input 4+

X1.2

Orange

X2.2

Boolean input 4- (GND)

X1.3

White and green

X2.3

Boolean input 5+

Twisted pair


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BBU Alarm Port

EXTALM0


Wire Color

X1.6

Green

X1.5

White and blue

X1.4

Blue

X1.7

White and brown

X1.8

Brown

X1.1

White and orange

X1.2

Orange

X1.3

White and green

X1.6

Green

X1.5

White and blue

X1.4

Blue

X1.7

White and brown

X1.8

Brown

Wire Type

Twisted pair

Twisted pair

Twisted pair

Twisted pair

Twisted pair

Twisted pair


Description

X2.6


X2.5

Boolean input 6+

X2.4


X2.7

Boolean input 7+

X2.8


X2.1

Boolean input 0+

X2.2

Boolean input 0+ (GND)

X2.3

Boolean input 1+

X2.6


X2.5

Boolean input 2+

X2.4


X2.7

Boolean input 3+

X2.8


7.5.8 GPS Clock Signal Cable The GPS clock signal cable is used to transmit GPS clock signals from the GPS antenna system to the BBU. The GPS clock signals serve as the clock reference of the BBU. This cable is optional.

Exterior The GPS clock signal cable has an SMA male connector at one end and an N-type female connector at the other end, as shown in Figure 7-85.

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Figure 7-85 GPS clock signal cable

(1) SMA male connector

(2) N-type female connector

7.5.9 GPS Jumper This section describes a GPS jumper that is used when a GPS surge protector is installed in a cabinet. The maximum length of a GPS jumper is 100 m (328.08 ft).

Exterior There are N50 straight male connectors at both ends of a GPS jumper, which connects the GPS surge protector and GPS antenna. Figure 7-86 shows a GPS jumper. Figure 7-86 GPS jumper

(1) N50 straight male connector

7.5.10 Signal Cable for the ELU The signal cable for the ELU is used to report the cabinet type information detected by the ELU to the fan assembly.

Exterior Figure 7-87 shows the signal cable for the ELU.

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Figure 7-87 Signal cable for the ELU

(1) RJ45 connector

Pin Assignment Table 7-35 describes the pin assignment for the wires of the signal cable for the ELU. Table 7-35 Pin assignment for the wires of the signal cable for the ELU X1 End

X2 End

Wire Color

Wire Type

X1.1

X2.1

White

Twisted pair

X1.2

X2.2

Orange

X1.3

X2.3

White

X1.6

X2.6

Green

X1.5

X2.5

White

X1.4

X2.4

Blue

X1.7

X2.7

White

X1.8

X2.8

Brown

Twisted pair

Twisted pair

Twisted pair

7.5.11 Cable Between two Combined Base Stations When a 3012 series base station and a 3900 series base station are installed side-by-side, the cable between two combined base stations is used to connect the universal cascading interface unit (UCIU) in the 3900 series base station and the cabinet top backplane for DTRU BTS (DCTB) or DGLUb in the 3012 series base station.

Exterior There are two types of cables that can be used to connect two combined base stations. Figure 7-88 shows the cable connected to the DCTB in the 3012 series base station.

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Figure 7-88 Cable between two combined base stations (1)

(1) MD36 male connector


Figure 7-89 shows the cable connected to the DGLUb in the 3012 series base station. Figure 7-89 Cable between two combined base stations (2)


Pin Assignment As shown in Figure 7-88, the cable has a DB15 male connector at one end and an MD36 male connector at the other end. Table 7-36 lists the pin assignment for the wires of the cable. Table 7-36 Pin assignment for the wires of the cable between two combined base stations (1)

Issue 07 (2012-12-30)


Pin on the MD36 Male Connector

Color

Wire Type

X1.1

X2.6

White

Twisted pair

X1.2

X2.7

Blue

X1.3

X2.11

White

X1.4

X2.12

Orange

X1.5

X2.2

White

X1.10

X2.3

Green

X1.6

X2.15

White

X1.11

X2.16

Brown

X1.12

X2.10

White


Twisted pair

Twisted pair

Twisted pair

Twisted pair 259


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Pin on the MD36 Male Connector

Color

X1.15

X2.28

Gray

X1.shell

X2.shell

Shield

Wire Type

-

As shown in Figure 7-89, the cable has a DB15 male connector at both ends. Table 7-37 lists the pin assignment for the wires of the cable. Table 7-37 Pin assignment for the wires of the cable between two combined base stations (2) Pin on the DB15 Male Connector


Color

Wire Type

X1.1

X2.1

White

Twisted pair

X1.2

X2.2

Blue

X1.3

X2.3

White

X1.4

X2.4

Orange

X1.5

X2.5

White

X1.10

X2.10

Green

X1.6

X2.6

White

X1.11

X2.11

Brown

X1.12

X2.12

White

X1.15

X2.15

Gray

X1.shell

X2.shell

Shield

Twisted pair

Twisted pair

Twisted pair

Twisted pair

-

7.5.12 Adapter Used for Local Maintenance An adapter used for local maintenance connects the USB port on the UMPT to an Ethernet cable during local maintenance.

Exterior The adapter used for local maintenance has a USB connector at one end and an Ethernet connector at the other end, as shown in Figure 7-90.

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Figure 7-90 Adapter used for local maintenance

(1) USB connector

(2) Ethernet connector

Pin Assignment Table 7-38 describes the pin assignment for the wires of the adapter used for local maintenance. Table 7-38 Pin assignment for the wires of the adapter used for local maintenance Pin of the USB Connector

Wire Color

Wire Type

Pin of the Ethernet Connector

X1.9

Blue

Twisted pair

X2.1

X1.8

White

X1.6

Orange

X1.5

White

X1.Shell

-

X2.2 Twisted pair

X2.3 X2.6

Shield

X2.Shell

7.6 BTS3900 RF Cable The BTS3900 RF cables are the RF jumper and inter-RFU RF signal cable.

7.6.1 RF Jumper The RF jumper connects the RFU and the feeder of the antenna system for signal exchange between the base station and the antenna system. A fixed-length RF jumper is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m (19.68 ft), or 10 m (32.81 ft) long. A variable-length RF jumper has a maximum length of 6 m (19.68 ft).

Exterior Figure 7-91 shows an RF jumper.

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Figure 7-91 RF jumper

(1) DIN straight male connector

(2) DIN elbow male connector

NOTE

Macro base stations use super-flexible 1/2-inch jumpers.

7.6.2 Inter-RFU RF Signal Cable The inter-RFU RF signal cable is used for transmitting the received diversity signals between two RFUs. The cable connects the RX IN port on one RFU and the RX OUT port on another RFU.

Structure Figure 7-92 shows the inter-RFU RF signal cable. Figure 7-92 Inter-RFU RF signal cable

(1) QMA elbow male connector

7.7 CPRI Electrical Cable The CPRI electrical cable enables high speed communication between the BBU3900 and the RFU.

Exterior The CPRI electrical cable is an SFP high speed transmission cable that has an SFP20 male connector at each end, as shown in Figure 7-93. Figure 7-93 CPRI electrical cable

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7.8 CPRI Fiber Optic Cable CPRI fiber optic cables are classified into multi-mode fiber optic cables and single-mode fiber optic cables. They transmit CPRI signals. NOTE

l An ODF can be used when the distance between a BBU and an RRU or the distance between interconnected RRUs is longer than 100 m (328.08 ft). l A single-mode fiber optic cable connects a BBU to an ODF or connects an ODF to an RRU.

The maximum length of a CPRI fiber optic cable is 150 m (492.12 ft) When the fiber optical cable connects a BBU and an RRU. The length of a CPRI fiber optic cable is 10 m (32.81 ft) when the fiber optical cable connects two RRUs.

Exterior Figure 7-94 shows a fiber optic cable between a BBU and an RRU or between RRUs, with a DLC connector at each end. Figure 7-94 Fiber optical cable between a BBU and an RRU or between RRUs

(1) DLC connector

(2) Branch optical fiber

(3) Label on the branch optical fiber

When a fiber optical cable connects a BBU and an RRU, the optical fibers on the BBU side and RRU side are 0.34 m (0.013 in.) and 0.03 m (0.0012 in.) long, respectively. When a fiber optical cable connects two RRUs, the optical fibers on both RRU sides are 0.03 m (0.0012 in.) long. Figure 7-95 shows the connections for a CPRI fiber optic cable between a BBU and an RRU.

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Figure 7-95 Connections for a CPRI fiber optic cable between a BBU and an RRU

(1) CPRI fiber optic cable between a BBU and an RRU

Figure 7-96 shows a single-mode fiber optic cable between a BBU and an ODF or between an ODF and an RRU, with a DLC connector at one end and an FC connector at the other end. Figure 7-96 Single-mode fiber optic cable between a BBU and an ODF or between an ODF and an RRU

(1) DLC connector

(2) Branch optical fiber

(3) Label on the branch optical fiber

(4) FC connector

When a single-mode fiber optic cable connects a BBU and an ODF, the optical fibers on the BBU side and ODF side are 0.34 m (0.013 in.) and 0.8 m (0.031 in.) long, respectively. When a single-mode fiber optic cable connects an ODF and an RRU, the optical fibers on the RRU side and ODF side are 0.03 m (0.013 in.) and 0.8 m (0.031 in.) long, respectively. Figure 7-97 shows the connections for a single-mode CPRI fiber optic cable between a BBU and an ODF or between an ODF and an RRU.

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Figure 7-97 Connections for a single-mode fiber optic cable between a BBU and an ODF or between an ODF and an RRU

(1) Single-mode CPRI fiber optic cable between a BBU (2) Single-mode CPRI fiber optic cable between an and an ODF ODF and an RRU

NOTE

A CPRI fiber optic cable must be connected to optical modules in the CPRI ports. A multi-mode fiber optic cable and single-mode fiber optic cable are connected to multi-mode optical modules and single-mode optical modules, respectively.

Pin Assignment Table 7-39, Table 7-40, and Table 7-41 describe the labels on and recommended connections for fiber optic cables of an optical assembly. Table 7-39 Labels on and recommended connections for optical fibers of an optical assembly between a BBU and an RRU Label

Connected To

1A

CPRI RX port on the RRU

1B

CPRI TX port on the RRU

2A

TX port on the BBU

2B

RX port on the BBU

Table 7-40 Labels on and recommended connections for optical fibers of a fiber optic cable between RRUs

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Label

Connected To

1A

CPRI RX port on RRU 1

1B

CPRI TX port on RRU 1 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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Label

Connected To

2A

CPRI TX port on RRU 0

2B

CPRI RX port on RRU 0

Table 7-41 Labels on and recommended connections for optical fibers of a single-mode optical assembly between a BBU and an ODF or between an ODF and an RRU Label

Connected To

1A

RX port on the BBU or CPRI RX port on the RRU

1B

TX port on the BBU or CPRI TX port on the RRU

2A

ODF

2B

ODF

7.9 PGND Cables The PGND cables are used to ensure proper grounding of the cabinet and the modules in the cabinet. The maximum length of a PGND cable is 15 m (49.21 ft).

PGND Cable for the Cabinet The PGND cable for the cabinet is green and yellow with a cross-sectional area of 25 mm2. Figure 7-98 shows the PGND cable for the cabinet. Figure 7-98 PGND cable for the cabinet

(1) OT terminal (25 mm2, M8)

PGND Cable for the Modules The PGND cable for the modules is green and yellow with a cross-sectional area of 6 mm2. Figure 7-99 shows the PGND cable for the modules.

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Figure 7-99 PGND cable for the modules

(1) OT terminal (6 mm2, M4)

7.10 Equipotential Cable When the battery cabinet is working with the power cabinet, one cabinet should be grounded through connecting the equipotential cable to the other cabinet.

Structure The equipotential cable is a single cable with OT terminals at both ends. It is a yellow and green cable with cross-sectional area of 16 mm2. The OT terminals should be made on site. Figure 7-100 show the equipotential cable. Figure 7-100 Equipotential cable

(1) OT terminals (16 mm2, M6)

Issue 07 (2012-12-30)

(2) OT terminals (16 mm2, M8)


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BTS3900 (Ver.C) Hardware Description(07)(PDF)-En

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