WCDMA BTS3900A Hardware Structure

Internal

WCDMA BTS3900A Hardware Structure BTS3900AV200R010 www.huawei.com

HUAWEI TECHNOLOGIES CO., LTD.

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As an important part of UTRAN, NodeB mainly processes the signals of the physical layer of Uu interface

BTS3900A is a new generation which is produced by Huawei Co. Ltd.


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Upon completion of this course, you will be able to: Master the hardware structure of BTS3900A Master the working principle of different subsystems and boards of BTS3900A Master the cables connection rules of BTS3900A Know typical configurations of BTS3900A


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“BTS3900A Product Description”

“BTS3900A Hardware Description”


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BTS3900A Abbreviations WMPT

WCDMA Main Processing and Transmission Unit

WBBPa

WCDMA Baseband Process unit Type A

WRFU

WCDMA Radio Filter Unit

UBFA

Universal BBU Fan Unit Type A (2U)

UEIU

Universal Environment Interface unit

UELP

Universal E1/T1 Lighting Protection unit

UFLP

Universal FE/GE Lighting Protection unit

UPEU

Universal Power and Environment Interface Unit

UTRP

Universal Transmission Processing Unit

DCDU-01

Direct Current Distribution Unit-01

CPRI

Common Protocol Radio Interface

PSU

The power supply unit

PMU

The power and environment monitoring unit

APM

Advanced power module

APMI

APM power monitor unit Interface board

AFMU

APM fan monitor unit Interface board

FMUA

fan environment monitoring unit


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NodeB Position in UMTS Network UTRAN

UE Uu

CN Iu Iu-CS

RNC Iub Iu-BC

CS

NodeB b Iu

Iu-PS

Iur PS

NodeB Iu-BC

Iub

NodeB

RNC CBC


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NodeB Location Uu Interface

UE

PSTN ISDN PSPDN

TUP,ISUP BTS3900A RNC IU Interface

UE

MSC/SGSN M

MAP

AP

BTS3900A

HLR/AUC/EIR

BTS3900A

SMC UE BTS3900A

HUAWEI TECHNOLOGIES Co., Ltd.

M2000

HUAWEI Confidential

Page 7

Chapter 1 NodeB Overview Chapter 2 BTS3900A Hardware Structure Chapter 3 BTS3900A Typical Configuration


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Chapter 3 BTS3900A Hardware Structure Section 1 BTS3900A Introduction Section 2 Power Modules Structure Section 3 Modules Structure Section 4 Cables


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BTS3900A Appearance


Type

Parameters

Dimensions

600(W)*900(H)*450(D)

Weight under full configuration

≤ 160Kg

3*1 and 3*2 Weight

≤ 120Kg

-48V input range of voltage

-48V DC:-38.4V DC to -57V DC

+24V input range of voltage

+24 DC:+21.6 V DC to +29 V DC

220 AC input range of voltage

220 AC: Single-phase or threephase power cable

110 AC input range of voltage

220 AC: Single-phase or threephase power cable

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Typical Configurations of the BTS3900A Cabinet

1. RF cabinet

2. Power cabinet


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1. RF cabinet

2. Power cabinet


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The BTS3900A cabinet comprises an RF

cabinet and a power cabinet. The extension battery cabinet and transmission cabinet are optional.

1. RF cabinet 2. Power cabinet 3. Transmission cabinet 4. Battery cabinet HUAWEI TECHNOLOGIES CO., LTD.

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BTS3900A Capacity and Characteristics

System capacity specifications: BTS3900A can support up to: uplink and downlink 1536 CEs BTS3900A can support up to: 6*4 cells or 3*8 cells

Characteristics Transmission Type: E1/T1, FE (electrical port ), FE (optical port ), Networking mode: star, chain and tree Synchronization clock sources: Iub interface clock, GPS, and internal clock Handover types: softer handover, soft handover and hard handover Services: CS services, PS services , mixed services and position services Enhanced functions：HSPA, MBMS, RAN sharing and RET as well


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BTS3900A Logical Structure


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RF Cabinet Modules

The BTS3900A cabinet comprises an RF cabinet and a power cabinet. The extension battery cabinet and transmission cabinet are optional.

The RF cabinet comprises the following entities: WRFU, DCDU , FMUA, and FAN unit. The power cabinet comprises the following entities: BBU, PDU, PMU and PSU.

You can choose to configure the BTS3900A with a battery cabinet and a transmission cabinet. This helps to expand the battery capacity and the installation space for optional user devices.


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RF Cabinet Modules --- WRFU Board

The WRFU consists of the high-speed interface unit, signal processing unit, power amplifier, and duplex unit.


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RF Module --- WRFU Board Type

Label

Connector Type

Description

Port for transceiving RF signals

ANT-RXD

N series female connector

Connecting the antenna subsystem

ANTTX/RXM

N series female connector

CPRI

CPRI_W

SFP female connector

Connecting the BBU, or the upper-level WRFU during the cascading

CPRI_E

SFP female connector

Connecting the lowerlevel WRFU during the cascading

LNA1-IN

QMA female connector

Input port of diversity signals in the antenna channel

LNA0-OUT

QMA female connector

Output port of diversity signals in the antenna channel

Power port

POWER

3V3 power connector

Introducing power

Commissioning port

COM

RJ45 connector

Used for commissioning

Interconnection port for RF receive signals


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RF Module --- WRFU Board Identifier

Status

Meaning

RUN

On

The power input is normal, but the module is faulty.

Off

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

On for 1 second and off for 1 second

The module is functional.

On for 0.125 second and off for 0.125 second

The module is loading software or is not started.

On

The module is in the alarm status.

Off

No alarm is generated.

On

The module is functional and is connected to the BBU.

Off

The module is not connected to the BBU.


The module is in the local test status.

Off (red)

No VSWR alarm is generated.

On (red)

A VSWR alarm is generated.

On (green)

The CPRI link is normal.

On (red)

The interface module fails to receive signals.

Red LED on for 1 second and off for 1 second

The CPRI link is out of lock.

ALM

TX_ACT

VSWR

CPRI_W CPRI_E


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RF Module --- WRFU Board RF specifications:

One WRFU supports four carriers. Each carrier’s maximum output power of WRFU is 80W; The receive sensitivity of single antenna is better than -125.8dBm; The receive sensitivity of two antennas is better than -128.6dBm; The maximum searching ability is180km. The maximum access search radius is configurable with the step size of 300 m; Configuration Type (No Transmit Diversity)

Transmit Diversity Power (W)/Carrier

Typical Power Consumption (W)

Maximum Power Consumption (W)

3*1

80

520

630

3*2

40

610

830

3*4

20

1020

1330


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RF Cabinet Modules --- DCDU-02 Board The direct current distribution unit

(DCDU) module leads power to each component in the cabinet. Functions

DCDU-02 in the 3RFU cabinet or in the left of the 6RFU cabinet

The DCDU supports the 1-way 48 V DC power input and 4-way 48 V DC power output. The DCDU leads -48 V DC power to the WRFU and FMUA in the RF cabinet.

DCDU-02 in the 3RFU cabinet or in the right of the 6RFU cabinet

The DCDU-02 has the built-in surge protector board, which provides 10 kA surge protection capability in differential mode and 15 kA in common mode.


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RF Cabinet Modules --- DCDU-02 Board Name

Label

Description

Wiring terminal for power input

NEG(–)

-48 V NEG input wiring terminal

RTN(+)

-48 V RTN input wiring terminal

Power output port

RFU0 to RFU5, FMUA, and SPARE

•RFU0 to RFU2 supplying power to the three WRFUs in the 3RFU cabinet or in the left of the 6RFU cabinet •RFU3 to RFU5 supplying power to the three WRFUs in the right of the 6RFU cabinet •FMUA supplying power to the FMUA •SPARE is reserved.

Power switch

RFU0 to RFU5, FMUA, and SPARE

•RFU0 to RFU2 controlling the current of the three WRFUs in the 3RFU cabinet or in the left of the 6RFU cabinet •RFU3 to RFU5 controlling the current of the three WRFUs in the 6RFU cabinet or in the right of the 6RFU cabinet •FMUA controlling the current of the FMUA •SPARE controlling the current of the SPARE power output port

Alarm output port

SPD ALM

DUDU dry contact alarm output port


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RF Cabinet Modules --- DCDU-02 Board

220 V and 110V AC Power Distribution


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RF Cabinet Modules --- FAN Unit The FAN unit provides the functions of ventilation and heat dissipation for the cabinets.

A FAN unit consists of two independent fans. Functions

Providing forced ventilation and heat dissipation Supporting the temperature detection The FAN unit supports: − Adjustment based on the temperature and adjustment controlled by the main control unit − Fan rotation control function. The FAN unit stops the rotation of the fans when the ambient temperature is low.


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RF Cabinet Modules --- FMUA Board The FMUA module is a fan environment monitoring unit. Functions

Leading -48 V DC power to the FAN unit Collecting environment alarms of the cabinet, such as temperature, humidity, smoke, water, and door status alarms Collecting surge protection alarms of the DCDU Supporting the functions of temperature detection and report Supporting cascaded and extension FMUA through the RS485 port


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RF Cabinet Modules --- FMUA Board

the LEDs on the FMUA.

Identifier

Color

Status

Meaning

RUN

Green


The module runs normally and communicates normally with the BBU.


The power supply is normal but the communications with the BBU is not normal.

OFF

There is no power supply.


Alarms are generates on both the left and right fans of the cabinet.


The fan in the right of the cabinet generates alarms.

ON

The fan in the left side of the cabinet generates alarms.


Other alarms are generated.

OFF

No alarm is generated or there is no power supply.

ALARM

Red


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RF Cabinet Modules --- FMUA Board

the ports on the FMUA module

Port Type

Port

Connector Type

Description

Power port

–48 V

3V3 power connector

-48 V DC power is supplied to the power port.

RS485 communication interface

COM IN

RJ45 connector

Connects to the main control unit.

COM OUT

RJ45 connector

Cascades lower-level FMUA.

TEM

RJ45 connector

Indicates the port for monitoring cabinet temperature.

TEM_HUM ARRESTER

RJ45 connector

Connects the SPD ALM port of the DCDU through the monitoring signal cable between the FUMA and DCDU.

FAN0 and FAN -1

4-pin connector

Connects to the FAN unit in the left of the cabinet through the power cable for the FAN unit.

FAN2 and FAN -3

4-pin connector

Connects to the FAN unit in the right of the cabinet through the power cable for the FAN unit.

Group one (from left to right)

Dry contact connector

Extension Boolean alarm port

Group two (from left to right)


Ports on the FAN unit

Boolean alarm port

Group three (from left to right) Dry contact connector

Ports for the smoke sensor and door status sensor

Group four (from left to right)

Port for the water sensor



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RF Cabinet Modules --- Batteries Batteries in the RF Cabinet

The batteries in the RF cabinet provide NodeBs with power supplies. Batteries are configured in the 3 RFU RF cabinet. Appearance

Batteries in the RF cabinet are classified into two types.

(1) -12 V 50 Ah battery


(2) -12 V 92 Ah battery

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Power Cabinet Modules

The components in the power cabinet are as follows: BBU, SLPU, PDU, PMU/PSU, AFMU, AFMI, and sensors.


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Logical Structure of the BBU3900 Module OMC

External Subsystem

Control Subsystem

Clock mode

Signaling Processing

Operation& Maintenance

Decoding Transmission Adaptation Protocol Processing

FP Processing

RNC

E1/T1 FE Transport Interface


Demodulation Power Control information

Codling Transport Subsystem

Power mode

Modulation

Baseband Subsystem

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Interface CPRI Module

TO WRFU

BBU3900 Module Introduction Full configuration

Typical configuration

Mandatory boards and modules：WMPT, WBBPa, UBFA, and UPEU

The optional boards are the UELP, UFLP, UTRP, and UEIU.


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BBU3900 Module Introduction F

SLOT0

SLOT4

A

SLOT1

SLOT5

SLOT2

SLOT6

SLOT3

SLOT7

N

PWR0 PWR1

Slot number definition

Active and standby definition for UTRP and WMPT boards F

WBBP

UTRP

A

WBBP

UTRP

N

WBBP

WMPT

WBBP

WMPT

PWR

PWR

Slot boards definition HUAWEI TECHNOLOGIES CO., LTD.

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BBU Module --- WMPT Board IP transmission on Electrical Port: RJ45

Loading

Testing

GPS antenna: SMA

LEDs Commissioning: RJ45

IP transmission Optical signals: SFP

4E1: DB26

Board number：

maximum is 2 for one BBU3900,mandatory board, working in active and standby mode Main Functions：

Providing OM functions Controlling other boards in the system and providing the reference clock Providing USB ports for automatic NodeB upgraded Providing transmission port for Iub interface Providing OM channels HUAWEI TECHNOLOGIES CO., LTD.

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BBU Module --- WMPT Board LEDs of running status of WMPT: Label

Color

Status

Description

RUN

Green

ON

The board has power input, yet the board is faulty.

OFF

The board has no power input.

1s ON, 1s OFF

The board is running as configured.

0.125s ON, 0.125s OFF

The software is being loaded to the board, or the board is not in use.

ON

The board is reporting alarms and is faulty.

OFF

The board is operational.

ON

The board is in active mode.

OFF

The board is in standby mode.

ALM

ACT

Red

Green


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BBU Module --- WMPT Board

LED

Color

Status

Description

LEDs beside the FE1 and FE0 optical port

Green

ON

The connections are functional.

OFF

The connections are faulty.

Blinking

There is ongoing data transmission.

OFF

There is no data transmission.

ON

The connections are functional.

OFF

The connections are faulty.

Blinking

There is ongoing data transmission.

OFF

There is no data transmission.

Yellow

LEDs beside the ETH port

Green Yellow


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BBU Module --- WMPT Board DIP Switch : The WMPT has two DIP switches: SW1 for setting the E1/T1 working

mode and SW2 for setting the protection ground for the E1. Settings of SW1 Bit

T1 Mode

120-ohm E1 Balanced Mode

75-ohm E1 Unbalanced Mode

1

ON

OFF

ON

2

ON

OFF

ON

3

OFF

ON

ON

4

OFF

ON

ON

Settings of SW2


Bit

75-ohm E1 Unbalanced Mode

Description

1

ON

2

ON

The RRING is for connected to the protection ground.

3

ON

4

ON

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BBU Module --- WBBPa Board CPRI 0 ~2 (1.25G-2.5G): SFP

LEDs

Board number： mandatory, maximum is 6 Main Functions：

Providing the CPRI interface for communication between the BBU and the WRRU or WRFU Processing uplink and downlink baseband signals and support HSUPA and HSDPA function Supporting 1+1 backup of the CPRI interface According to the board processing capability, WBBP module will include seven specifications. Current WBBP is the A version, called WBBPa.


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BBU Module --- WBBPa Board LED of running status of board : Label

Color

Status

Description

RUN

Green

ON


OFF

The board has no power input or is faulty.

1s ON, 1s OFF


0.125s ON

Software is being loaded to the board.

0.125s OFF ACT

ALM

CPRI0 -2

Green

Red

Red

Green

ON


OFF

The board is not in use.

OFF


ON


OFF

The optical module is not in position, or the CPRI electrical cable is not securely connected.

ON

The optical module or the electrical port is in position, yet the received signals are lost.

Blinking

The associated CPRI link is out of lock.

ON

The associated CPRI link is operational.


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UFAN Board

Board number： mandatory, maximum is 1 Main Functions：

Controlling the fan speed Reporting the fan status to the WMPT Detecting the temperature of the fan board Label

Color

Status

Description

STATE

Green

0.125s ON,

The module is not registered, and no

0.125s OFF

alarm is reported.

1s ON, 1s OFF

The module is operational.

ON

The module is reporting alarms.

Red


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BBU Module --- UPEU Board

Panel of the UPEA

Panel of the UPEB

+24V to +12V

-48V to +12V

Board number： mandatory, maximum is 2, 1+1 backup Main Functions：

Converting -48 V or +24 V DC power input to +12 V DC power that is supported by boards Reporting alarms related to input and output under voltage Providing transmission ports for RS485 signals and dry contact alarm signals HUAWEI TECHNOLOGIES CO., LTD.

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BBU Module --- UPEU Board LED: The UPEU has one LED, indicating the running status of the board.

Label

Color

Status

Description

RUN

Green

ON


OFF

The board has no power input, or the board is faulty.

Socket and Port: The UPEU has one socket and four ports.

Label

Quantity

Connector Type

Function

PWR

1

3V3

DC power input

EXT-ALM1

1

RJ45

Transmitting dry contact alarm signals

EXT-ALM0

1

RJ45

MON1

1

RJ45

MON0

1

RJ45


Transmitting RS485 environment monitoring signals

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BBU Module --- UTRP Board

The UTRP provides ports for eight E1s/T1s and implements transport such as IP and ATM between the BBU3900 and the RNC. 4 E1:DB26

Label

Color

Status

Description

RUN

Green

ON


OFF

The board has no power input or is faulty.

1s ON, 1s OFF


0.125s ON, 0.125s OFF

Software is being loaded to the board.

2s ON, 2s OFF

The board is under test.

ON

The board is in active mode.

OFF

The board is in standby mode.

OFF


ON


ACT

ALM

Green

Red


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BBU Module --- UEIU Board Board number:

maximum is 2

The UEIU Functions：

Connecting to an external monitoring device and transmitting RS485 signals to the WMPT Connecting to an external alarm device and transmitting dry contact alarm signals to the WMPT Port : The UEIU has four ports.


Label

Connector Type

MON0

RJ45

MON1

RJ45

EXT-ALM0

RJ45

EXT-ALM1

RJ45

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BBU Module --- SLPU Board UFLP The auxiliary devices of the

UELP

BBU3900. The devices are the SLPU, UELP, and UFLP SLPU: The signal lightning

protection unit is an optional module of the BTS3900 cabinet (-48 V) or the power distribution cabinet. The UFLP and the UELP

are optional units that are installed in the SLPU.


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BBU Module --- UELP Board UELP: The universal E1/T1 lightning protection (UELP) unit is a universal E1/T1

The UELP can be optionally installed in the SLPU or the BBU. Each UELP supports the surge protection of 4-way E1/T1 signals. DB26

DB25

E1 Connection: E1 E1

Indoor DDF


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BBU Module --- UELP Board DIP Switch: The UELP has one DIP switch, which is used to select whether the

receive terminal is grounded. The DIP switch has four bits.

DIP Switch S1


DIP Status

Description

1

2

3

4

ON

ON

ON

ON

Used for the 75 Ω unbalanced mode

OFF

OFF

OFF

OFF

Used for other modes except the 75 Ω unbalanced mode

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BBU Module --- UFLP Board UFLP: The universal FE lightning protection (UFLP) board is optionally installed in the

SLPU or BBU. Each UFLP supports 2-way FE surge protection.

IP Cable Connection. Transmission Equipment LAN switch or Router


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Power Cabinet Modules --- APMI The APMI board refers to APM Power Monitor unit Interface board. Function

Transfers the APM30 serial port communication signals, Boolean input/output signals, and EMI signals. Protects the dry contact input/output signals and RS485 signals (connected to the BBU/BTS)


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Power Cabinet Modules --- APMI

Port

Connector Type

Quantity

Function

RS422

RJ45 connector

1

Connecting the monitoring signal cable between the PMU and the APMI

TX+, TX-, RX+, RX-

2-pin molex connector

2

Connecting the monitoring signal cable between the APMI and the BBU

IN1-IN3


3

Connecting the dry contact alarm input cable

OUT1


1

Connecting the optical coupling alarm output cable


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Power Cabinet Modules --- AFMU

The AFMU board refers to APM Fan Monitor unit Interface Board.

Function Provides DC power supply to the APMI and AFMU boards through the DC power port Supplies DC power to the two fans at the top of the cabinet and reports the alarms of the fans Reports the alarms of the internal ambient temperature sensor, air inlet temperature sensor, and air outlet temperature sensor The alarm signals of the AFMU board is transported to the APMI board through the signal transfer cable and then is reported to the BBU


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Power Cabinet Modules --- AFMU

SN

Port

Function

1

ALM

Connecting the monitoring signal cable between the AFMU and the APMI

2

DC INPUT

Connecting the DC power cable of the AFMU

LED

Silkscreen

Color

Status

Description

Operation LED

RUN

Green

ON steady

About 1 minute after the AC or DC power-on

Blinking for 1s ON and 1s OFF

The system is working properly.

Blinking for 0.125s ON and 0.125s OFF

The serial port communication is disrupted. The other communication is normal.

OFF steady

The system is not powered on.

ON steady

An alarm is generated.

OFF steady

No alarm is generated, or the system is not powered on.

Alarm LED

ALM

Red


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Power Cabinet Modules --- PDU The

PDU (short for Power Distribution Unit) performs AC or DC power distribution.

SN

Description

1

AC wiring terminals •For the 110 V dual-live-wire input, use L2 •For the single-phase 220 V/three-phase 220 V input, use N1 and N2

2

AC wiring terminals •For the 110 V dual-live-wire input, use L1 •For the single-phase 220 V/three-phase 220 V input, use L1, L2 and L3

3

AC output wiring terminals (Lout1, Lout2)

4

AC output wiring terminals (Nout1, Nout2)

5

AC input MCB

6

AC output MCB (controls the power supply to the heating film or heaters)

7

DC output MCBs (SW0-SW9)

8

DC output wiring terminals (LOAD0-LOAD9)


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220V AC Power Subrack --- PSU(AC/DC) Board Function The power subrack consists of the PMU, PSU (AC/DC) and the wiring unit of the

power subrack (220 V). The power subrack (AC/DC) converts the 220 V AC power to the -48 V DC power.

(1) Power running LED (2) Protection LED (3) Fault LED 220V AC Single Cabinet HUAWEI TECHNOLOGIES CO., LTD.

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220V AC Power Subrack --- PSU(AC/DC) Board LED

Color

Status

Meaning

Power running LED

Green

On

Normal

Off

There are faults (such as no AC input, or overvoltage and undervoltage of AC input) on the mains, or the PSU has no output.

Protection LED

Yellow

Off

Normal

On

Temperature pre-alarm or fan pre-alarm

Off

Normal, or the PSU has no output because of faults (such as no AC input, or overvoltage and undervoltage of AC input) on the mains.

On

There is no output because of output overvoltage shutdown, fan fault, overtemperature shutdown, remote shutdown, or internal problems of the PSU.

Fault LED

Red


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220V AC Power Subrack --- PMU Board The power and environment monitoring unit (PMU) is the unit for monitoring the power and the environment. The PMU provides perfect power system management, power distribution detection, and alarm report functions.

(1) LEDs

(2) Power supply test ports

(3) RS232/RS422 port

(4) Battery control switches

(1) Backplane port

(2) DIP switch

(5) COM port HUAWEI TECHNOLOGIES CO., LTD.

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220V AC Power Subrack --- PMU Board Identifier

Color

Status

Meaning

RUN

Green

On for 1 second and

The module is functional, and the communication with the

off for 1 second

main control unit is normal.

On for 0.125 second

The module runs normally but the communication with the

and off for 0.125

main control unit fails.

second

If the PMU does not communicate with the main control unit for one minute, the communication fails. In this situation, the RUN LED blinks four times every second.

ALM

Red

On/Off

The PMU is faulty (not in the power-on self-check state).

On

The following alarms are reported: •Mains overvoltage or undervoltage alarm •Busbar overvoltage or undervoltage alarm •Power module alarm •Load shutdown alarm

Off


No alarm is generated.

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220V AC Power Subrack --- PMU Board Port

Purpose

RS232/RS422 port

Communicating with the main control unit

Battery control

The battery control switch has two control ports ON and OFF, which are

switch

used for powering on and off the battery. •Press and hold the port ON for 5s to 10s until the battery is powered on. •Press and hold the port OFF for 5s to 10s until the battery is powered off. CAUTION: •You need to insert a small round bar into the hole when you operate the battery control switch. When you hear a crack, the battery is powered on or off. •To operate the battery control switch on the front panel of the PMU, insert a small round pole into the hole.

Power supply test

Two power supply test holes -48 V and 0 V are available for measuring

port

power voltages through an ordinary multimeter.

COM port

Connecting the external signal transfer board

Backplane port

Connecting the backplane


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220V AC Power Subrack --- PMU Board

DIP Switch: The DIP switch is located on the rear panel of the PMU. The DIP switch has eight bits, which are set to OFF before delivery.


Bit 3

Bit 2

Bit 1

Bit 0

Monitoring Address

0

0

0

0

0000

0

0

0

1

0001

0

0

1

0

0010

0

0

1

1

0011

0

1

0

0

0100

0

1

0

1

0101

0

1

1

0

0110

0

1

1

1

0111

1

0

0

0

1000

1

0

0

1

1001

1

0

1

0

1010

1

0

1

1

1011

1

1

0

0

1100

1

1

0

1

1101

1

1

1

0

1110

1

1

1

1

1111

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BBU3900 Cable Connection


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Cables --- PGND Cable PGND Cable

OT terminal

Name

Color

Cross-Sectional Area

One End Is Connected to ...

The Other End Is Connected to ...

PGND cable of the BTS3900 WCDMA cabinet

Green and yellow

The cross-sectional area of a wire is 25 mm2.

PGND terminal on the right side of the cabinet

External grounding bar of the cabinet

PGND cable of the DCDU

Green and yellow


PGND terminal on the right side of the DCDU panel

PGND terminal on the right side of the cabinet

Front door PGND cable

Green and yellow


PGND terminal at the front door of the cabinet

PGND terminal in the cabinet


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Cables --- Power Cable Power Cable Between the DCDU and the BBU


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Cables --- Transmission Cable

E1 Cable

FE Cable

E1 Surge Protection Transfer Cable


FE Surge Protection Transfer Cable

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Cables --- CPRI Cable This describes the CPRI electrical cable. It helps to implement high speed

communication between the BBU3900 and the WRFU. Appearance : The CPRI electrical cable is an SFP high speed transmission

cable that has a SFP200 male connector at each end

One End

The Other End

CPRI port on the WBBP

CPR1_W port on the WRFU


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Chapter 1 Fourth Generation NodeB Overview Chapter 2 BTS3900A Hardware Structure Chapter 3 BTS3900A Typical Configuration


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BTS3900A Typical Configuration The BTS3900A supports omni-directional, 2-sector, 3-sector, and 6-sector

configurations. It also supports smooth capacity expansion from 1 x 1 to 3 x 8. This takes the WBBPa module that supports 3-sector and WRFU module that

supports 80 W/4 carrier as an example to describe the configurations of the BTS3900A


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Page 68

Thank You www.huawei.com

WCDMA BTS3900A Hardware Structure

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