BTS3900 WCDMA V200
Installation Guide
Issue: 01 Part Number: 31504728 Date: 2009-06-30 HUAWEI TECHNOLOGIES CO., LTD.
Contents I. Safety Information …………………………………………… 2 II. Information About the Installation ………………………… 3 III. Installing the Base ………………………………………… 7 IV. Installing the Cabinet ……………………………………… 13 V. Installing the Cabinet PGND Cable ……………………… 14 VI. Checking the Equipment and Cables …………………… 15 VII. Installing the Power Cables ……………………………… 17 VIII. Installing the Transmission Cables …………………… 20 IX. Installing the RF Cables ……………………………………24 X. Routing the Cables ………………………………………… 28 XI. Checking the Installation ………………………………… 29 XII. Checking the Power-On Status ………………………… 31 XIII. Appendix ……………………………………………………32 XIV. Change History ……………………………………………44
1
Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
Safety Information Following All Safety Precautions Before any operation, read the instructions and precautions in this document carefully to minimize the possibility of accidents. The Danger, Caution, and Note items in the documents do not cover all the safety precautions that must be followed. They only provide the generic safety precautions for operations. When operating Huawei products and equipment, you must comply with safety precautions and special safety instructions related to corresponding equipment provided by Huawei. The safety precautions in the document are related to only Huawei products. Huawei is not liable for any consequence that results from the violation of universal regulations for safety operations and safety codes on design, production, and equipment use.
Complying with the Local Safety Regulations When operating the device, comply with the local safety regulations. The safety precautions provided in the documents are supplementary. You must comply with the local safety regulations.
Qualified Personnel Only The personnel in charge of installation and maintenance must be trained and master the correct operating methods and safety precautions before beginning work.
Symbols DANGER
Indicates a hazard with a high level of risk, which if not avoided,will result in death or serious injury.
WARNING
Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury.
CAUTION
Indicates a potentially hazardous situation, which if not avoided,could result in equipment damage, data loss, performance degradation, or unexpected results.
TIP
Indicates a tip that may help you solve a problem or save time.
NOTE
Provides additional information to emphasize or supplement important points of the main text.
Safety of Personnel • The high voltage power supply provides power for running the system. Direct contact with the high voltage power supply or contact through damp objects may result in fatal danger. • Non-standard and improper high voltage operations may result in fire and electric shock. • In a thunderstorm, do not perform operations on high voltage and AC power supply facilities or on a steel tower and mast. • Ground the device before powering on the device. Otherwise, the personnel and device are in danger. • Power off the device before performing operations on the power supply equipment. • High power radio-frequency signals are harmful to human body. Before installing or maintaining an antenna on a steel tower or mast with a large number of transmitter antennas, the operator should coordinate with all parties to ensure that the transmitter antennas are shut down. • When handling optical fibers, do not stand close to, or look into the optical fiber outlet with unaided eyes. • Protect yourself when drilling holes. Flying dust may hurt your eyes or you may inhale the dust. • Power off the batteries before connecting the cables to the batteries. Otherwise, casualties may occur. • When working at a height, be cautious about falling objects.
Device Safety • Check the electrical connection of the device before operation and ensure that the device is reliably grounded. • The static electricity generated by the human body may damage the electrostatic sensitive components on the circuit board, such as the large-scale integrated circuit (LIC). Wear an ESD wrist strap or ESD gloves when performing the operation. • When working on batteries, take measures to prevent short circuits in the batteries and electrolyte spill/loss. The electrolyte may erode metal and boards, or even cause rust of the equipment or short circuits in the boards. • When the equipment is unpacked, it must be powered on in 24 hours. The maximum duration of the poweroff state of the equipment is 24 hours during maintenance.
2
Prepare for the installation a Installation Tools
Phillips screwdriver (M3 to M6)
Flat-head screwdriver (M3 to M6)
Socket wrench
Torque wrench
Crimping pliers for power cables
RJ-45 crimping pliers
Wire cutter
Rubber hammer
Iron
Wire stripper
Heat gun
Level bar
Long measuring tape
Cleaner
Marking pen
Adjustable wrench (32 mm capacity)
Percussion drill (Ø16)
Multimeter
3
Prepare for the installation b Installation Procedure Start
Prepare for the installation
Installing the base on the concrete floor
Installing the base on the ESD floor
Installing the cabinet
Installing the PGND cable for the cabinet Checking components and cables
Installing power cables
Installing transmission cables
Installing RF cables
Routing cables
Checking the installation
Power-on check
End
4
Prepare for the installation c Hardware Structure of the BTS3900 z The BTS3900 cabinet supports three different kinds of power inputs, that is, -48 V DC, +24 V DC, and 220 V AC. z The hardware structure of the cabinet varies with power distribution. z The +24 V and 220 V BTS3900 cabinets support a maximum of six RFUs, and cannot be stacked with the -48 V BTS3900 cabinet. z The +24 V and 220 V BTS3900 cabinets cannot be installed in stack mode. If the cabinets must be installed in stack mode, the ambient temperature should be decreased to -20℃～50℃.
Hardware structure of the BTS3900 (220 V)
Hardware structure of the BTS3900 (-48 V)
Hardware structure of the BTS3900 (+24 V)
5
Prepare for the installation The cable colors, equipment appearance in this guide is for your reference only. For the appearance of the components, see the components on site.
d
Space Requirements (Unit: mm)
Space requirements of the BTS3900 cabinet installation are described as follows: z The rear of the cabinet can be in contact with the wall. z The side of the cabinet can be in contact with the wall. z An aisle of at least 800 mm wide should be left in front of the cabinet for maintenance. z A space of at least 200 mm is left between the top of the upper cabinet and the roof for easy feeder cabling.
≥200 45 0
900
≥ 80 0
40 42 0
600
6
Installing the Base a Installing the BTS3900 Cabinet on the Concrete Floor 1 Determining the position for installing the cabinet (unit: mm) Mounting hole for the expansion bolt
Hole for fixing the base Front of the base Concrete floor Marking plate Interior wall or reference object
Front edge of the cabinet door Label the board to align the front edge of the cabinet door.
2 Drilling holes at the marked points and then installing the expansion bolts Bolt M12x60 Spring washer Flat washer
Ø16
Expansion tube
。 90 52~60
z Protect yourself when drilling holes. Otherwise, flying dust may hurt your eyes or you may inhale the dust. z The depth of the holes must range from 52 mm to 60 mm. All the holes must be in the same depth. z The expansion tube must be fully buried into the floor to ensure that the cabinet can stand steady on the floor.
7
Installing the Base a Installing the BTS3900 Cabinet on the Concrete Floor 3 Installing the base Placing the insulating spacers Placing the base Installing the expansion bolts
Bolt M12x60 Spring washer Flat washer Insulating washer
M12X60
45N•m
Insulating spacer
8
Installing the Base b Installing the BTS3900 Cabinet on the ESD Floor Specifications of the ESD floor Access hole z There are two types of ESD floor supports for the BTS3900. z One is height- adjustable and the other is height-fixed. z The height of the ESD floor refers to the distance from the concrete floor to the upper surface of the ESD floor.
Mapping between the support type and the height of the ESD floor Support
Type
Height of the ESD Floor
Ⅰ
296 mm - 495 mm
Ⅱ
At least 120 mm, depending on the actual floor height.
Mounting hole
1 Determining the position of the base on ESD floor (unit: mm)
4-Φ16
M12 55 Front of the base ≥800 Front of the cabinet Interior wall or reference object
ESD floor
Front of the base
2 Drilling holes at the marked points on the ESD floor
z Protect yourself when drilling holes. Otherwise, flying dust may hurt your eyes or you may inhale the dust. z After the holes are drilled, use the vacuum cleaner to remove the dust both inside and around the holes. If the inter-hole distance is too long or too short, locate and drill holes again.
9
52~60
Installing the Base b Installing the BTS3900 Cabinet on the ESD Floor 3 Securing the floor with the support temporarily Place the support under the ESD floor, and use bolts M12x70 to secure the floor with the support temporarily.
Access hole
Bolt M12x70 Spring washer 12 Flat washer 12
Support
ESD floor
4 Determining the position of the support on the concrete floor (unit: mm) Mounting hole ESD floor
Position of the base on the ESD floor
Concrete floor
55
≥800
Front of the base Front of the cabinet Interior wall or reference object
10
Support of the ESD floor
Installing the Base b Installing the BTS3900 Cabinet on the ESD Floor 5. Drill holes on the ESD floor and install the expansion bolt assembly.
6. Fixing the support
z Protect yourself when drilling holes. Otherwise, flying dust may hurt your eyes or you may inhale the dust. z The depth of the holes must range from 52 mm to 60 mm. All the holes must be in the same depth. z The expansion tube must be fully buried into the floor to ensure that the cabinet can stand steady on the floor.
Ø16
During this operation, fix the height locking bolts (middle) and then the height locking bolts (side).
M12X60
M12x60 bolt Flat washer 12 Spring washer 12 Expansion tube
90°
45N•m
ESD floor
52~60mm Height locking bolt Height locking bolt Expansion bolt M12x60 Spring washer 12 Flat washer 12 M12X60
7. Installing the base on the ESD floor M12X70
Bolt M12x60 Spring washer 12 Flat washer 12 Insulating washer
45N•m
ESD floor Base
45N•m
Bolt M12x70 Spring washer Flat washer
11
Insulating spacer
Installing the Base c Checking and Adjusting the Levelness of the Base Use a level bar to check the levelness of the base, and then adjust the adjusting bolt until the base is horizontal.
Adjusting bolt installed on site Adjusting bolts M12x25
If the bubble in the level bar is in the middle, you can infer that the base is horizontal.
Level bar
d Measuring the Resistance Between the Base and the Bolts z The resistance between the base and the four expansion bolt assemblies should be respectively measured. z If the resistance is less than 5 megohm, you can infer that the base and the earth are not insulated. In this case, you need to disassemble the expansion bolt and check whether the insulating washer is installed or damaged. If the insulating washer is not installed or damaged, install the washer again and adjust the levelness of the base.
Multimeter
e Installing the Installation Blocks on the Base M12X35
45N•m
M12x35 bolt Spring washer Flat washer Installation block
During the installation, discard the installation blocks delivered with the base and use installation blocks delivered with the cabinet.
12
Installing the Cabinet Installing the cabinet on the base Place the cabinet on the base and push the cabinet gently along the slots.
During the installation, do not place any object on the cabinet top. Otherwise, it may fall into the cabinet.
Use a torque wrench to tighten the cabinet to the base.
M12X25
45N•m
Blot M12x25
If the cabinet is installed with the power subrack before delivery. You should remove the power subrack from the cabinet and also the power cable and PGND cable between the power subrack and the DCDU-01 before installing the cabinet. After the cabinet is installed, install the power subrack and also the power cable and PGND cable.
13
Installing the Cabinet PGND Cable 1. Installing the PGND cable for the -48 V cabinet
M8
PGND cable OT terminal Screw
External grounding bar
2. Installing the PGND cable for the +24 V cabinet
External grounding bar
M8
3 Installing the PGND cable for the 220 V cabinet (its installation method is the same as that of installing the PGND cable for -48 V cabinet shown in the upper figure ) z The cross-sectional area of the PGND cable is 25 mm2. The other end of the PGND cable should be connected to the external grounding bar before the other installation operations can be performed. z To facilitate the operation, you can remove the cabinet door before installing the PGND cable. For details, see pages 32. z The OT terminals of the PGND cable should be made on site. For details, see page 39.
14
Checking the Equipment and Cables a Checking the Equipment
WRFU
FAN
Position of the SLPU (optional) BBU3900 DCDU-01
SLPU
The DIP switches on the WMPT, UELP, and UTRP need to be checked. The UELP and UTRP are optional boards. For details, see pages 40 to 41. The WMPT is installed in the BBU3900. The positions of UELP/UFLP and UTRP are determined according to the configuration of the cabinet. a) If the UTRP is configured, it is installed in the BBU3900 and UELP/UFLP is installed in the SLPU. b) If the UTRP is not configured, UELP/UFLP is installed in the BBU3900.
15
Checking the Equipment and Cables b Checking the Connected Cables Power cables for the BBU, RFUs, and FAN unit CPRI electrical cables and monitoring cables Surge protection transfer cable
WRFU
ELU signal cable
Fan box in the cabinet
Power cable
BBU power module
Monitoring cable
Power cable
WBBP Checklist for the connected cables: 1 When being lightly pulled, the CPRI electrical cable does not detach from the port. 2 The screws on both sides of the DIN-type connector are tightened. 3 The power cables are securely connected to the DCDU-01. 4 The GPS signal cable is securely connected to the WMPT.
DCDU-01
Power cables for the BBU, RFUs, and FAN unit
E1 surge protection transfer cable (optional) UELP (Optional)
GPS signal cable
WMPT
z The upper figure f on the right shows the configuration that the WMPT and UELP are configured in the BBU3900. The lower figure f on the right shows the configuration that the WMPT and UFLP are configured in the BBU3900. The cable connections in position f vary with the board configurations. z The optional E1/T1 surge protection transfer cable or FE surge protection transfer cable is used with the UELP/UFLP.
16
FE surge protection transfer cable (optional) UFLP
WMPT
GPS signal cable
Installing the Power Cables z Attach labels before routing cables. z When cutting the BTS3900 input power cable, reserve an extra length of 300 mm. Add an OT terminal to the cable on site. For details, see page 39.
a Installing -48 V Power Cables
RTN(+)
NEG(-)
Name
Input power cable (-48 V)
Installation Position From
To
External power supply
Power input wiring terminal block on the DCDU-01: The blue power cable is connected to the NEG(-) terminal and the black power cable to the RTN(+) terminal
17
Installing the Power Cables b Installing the +24 V Power Cable 1. Installing the PSU
2. Installing the input power cable
M8
Name
Input power cable (+24 V)
Installation Position From
To
External power supply
+ terminal and terminal on the wiring unit of the power subrack
18
Installing the Power Cables c Installing the 220 V Power Cable When arranging for the power cable on site, do not expose the metal wire.
220 V single-phase AC input
L1
N1
Short-circuiting bars bars 220 V three-phase AC input
L1
N1
L2 Removing the short-circuiting bars
L3
110 V dual-live-wire AC input
L1
Name
Input power cable (220 V single-phase)
L2
Installation Position From
To
External power supply
L1 and N1 terminals on the wiring unit of the power subrack
19
Installing the Transmission Cables a Installing the E1 Cable z Attach labels before routing cables. Before routing the E1 cable, attach labels to the cable. For details on the wire assignment of the E1 cable, see pages 42 and 43. z The procedures for installing -48 V DC, +24 V DC, and 220 V AC transmission cables are the same. This document takes the installation of -48 V DC transmission cable as an example.
z Based on transmission mode, only one type of E1/T1 cable needs to be installed. Alternatively, FE cable is installed if FE transmission mode is used. z Ensure that both ends of the E1 cable are disconnected. Then, weld connectors to the bare wires at one end of the E1 cable all at once.
1. Installing the E1 cable
E1/T1
Name
Installation Position From
To
E1 cable (75 ohm)
E1/T1 port on the WMPT Transmission device or RNC
E1 cable (120 ohm)
E1/T1 port on the WMPT Transmission device or RNC
20
Installing the Transmission Cables a Installing the E1 cable z The UELP is optional. It can be installed in the SLPU or slot 4 of the BBU3900. The SLPU is also optional. z The UTRP is optional. It can be installed in slot 4 of the BBU3900.
3. Installing the E1 cable when the UTRP is configured
2. Installing the E1 cable when the UELP is configured
INSIDE
OUTSIDE E1/T1 (0-3)
Name
E1/T1 (4-7)
Installation Position From
To
E1 cable (when the UELP is configured)
OUTSIDE port on the UELP
Transmission device or RNC
E1 cable (when the UTRP is configured)
E1/T1(0-3 or E1/T1(4-7) port on the UTRP
Transmission device or RNC
21
Installing the Transmission Cables b Installing the FE Cable z Label the cables before routing them. z The installation of transmission cables is the same, regardless of which power type is used for the BTS3900. The following description takes installing transmission cables in the -48 V DC BTS3900 cabinet as an example.
1. Installing the FE cable
FE0
Name
FE cable
Installation Position From
To
FE0 port on the WMPT
Transmission device or RNC
22
Installing the Transmission Cables b Installing the FE Cable z The UFLP is optional. It can be installed in the SLPU or slot 4 of the BBU3900. The SLPU is also optional. z The UTRP is optional. It can be installed in slot 4 of the BBU3900.
2. Installing the FE cable when the UFLP is configured
INSIDE
3. Installing the FE cable when the UTRP is configured
OUTSIDE FE/GE 0
Name
FE/GE 1
Installation Position From
To
FE cable (when the UFLP is configured)
OUTSIDE port on the UFLP
Transmission device or RNC
FE cable (when the UTRP is configured)
FE/GE 0 or FE/GE 1 port on Transmission device or RNC the UTRP
23
Installing the RF Cables Label the cables before routing them.
a Attaching Color Rings Name
Installation Position One End
The Other End
RF jumper
Jumper connector on the feeder ANT port on the RFU panel side
Inter-WRFU signal cable
RX IN port on the panel of one WRFU
RX OUT port on the panel of the other WRFU
z Sectors and RF channels are differentiated by the color and quantity of the attached color rings. z Determine the color ring configuration scheme before attaching color rings. Check the positions of the color rings after attaching them.
1. Positions of the color rings
Antenna Positions of the color rings: Outdoor jumper 200 mm from the outdoor jumper connector 200 mm from the outdoor feeder connector Feeder
Within 1000 mm down from the tower
1000 mm from the feeder window Feeder window 200 mm from the indoor feeder connector 200 mm from the indoor jumper connector
Indoor jumper
24
Installing the RF Cables a Attaching Color Rings 2. Attaching color rings
The rules of attaching color rings are subject to the local standards. The color rings should be wrapped correctly and in the same direction. Each color ring should be wrapped for two or three layers and the upper layer should cover the lower one. The spacing between two adjacent rings ranges from 10 mm to 15 mm.
3. Configuration scheme of color rings Typical configuration scheme Sector
Main
Diversity
1
Two red rings
One red ring
2
Two yellow rings
One yellow ring
3
Two blue rings
One blue ring
Other configuration schemes If two antennas of the same system are co-sited, the color ring configuration of the second antenna is listed as follows: Sector
Main (Antenna 2)
Diversity (Antenna 2)
1
Four red rings
Three red rings
2
Four yellow rings
Three yellow rings
3
Four blue rings
Three blue rings
If several systems are co-sited, the color ring configuration of the second antenna system is listed as follows: Secto Main (System 2) r 1 One white ring + two red rings
Diversity (System 2) One white ring + one red ring
2
One white ring + two yellow rings One white ring + one yellow ring
3
One white ring + two blue rings
One white ring + one blue ring
z If main and diversity do not need to be differentiated, by default, the RF signals outgoing from the left RF modules are main signals and those outgoing from the right RF modules are diversity signals. z If there are six sectors in the antenna system, the color rings for sector 4, 5, and 6 are purple, orange, and green respectively.
25
Installing the RF Cables b Installing the RF Jumper 3 RFUs; 3 sectors z The installation sequence is from top to bottom and from both sides to the middle. z When bending the RF jumpers, do not damage the jackets of the jumpers.
ANT_RXB ANT_TX/RXA
z To facilitate future capacity expansion by stacking cabinets, ensure that an extra length of 300 mm is reserved for each jumper. z If a single cabinet is installed, the RF jumpers are routed along the left and right cable troughs. z When adding a DIN connector, use a wrench to tighten it until the fastening torque is 25 N•m to 35 N•m. z The connectors of the jumpers should be properly added and securely linked to the modules. z The requirement for bending radius of the 1/2-inch super-flexible jumper is more than 50 mm.
6 RFUs; 6 sectors
ANT_RXB
ANT_TX/RXA
26
Installing the RF Cables b Installing the RF Jumper
6 RFUs; 3 sectors
RX_INB、RX_OUTA
ANT_TX/RXA
When bending the RF jumpers, do not damage the jackets of the jumpers.
Connections between RX_INB and RX_OUTA: RFU
From
To
RFU0 : RX_INB
RFU1 : RX_OU TA
RFU0 : RX_OU TA
RFU1 : RX_INB
RFU2 : RX_INB
RFU3 : RX_OU TA
RFU2 : RX_OU TA
RFU3 : RX_INB
RFU4 : RX_INB
RFU5 : RX_OU TA
RFU4 : RX_OU TA
RFU5 : RX_INB
RFU0&1
RFU2&3
RFU4&5
27
Routing the Cables The routing of -48 V DC cabinet, +24 V DC cabinet, and 220 V AC cabinet is the same.
a Routing Cables of a Single Cabinet Top view of a single cabinet
PGND cable E1/T1 cable or FE cable
Jumper BTS3900 input power cable
Jumper
b Routing Cables of Stacked Cabinets a. Route and bind the cables in the same way as that in “Routing Cables of a Single Cabinet”. b. Route 12 feeders directly from the upper cabinet along the WRFU panel. At that time, remove the routing baffle plate on the top of the upper cabinet.
Cables routed from the cabinet (stacked, upper cabinet)
PGND cable Jumper of the lower cabinet
E1/T1 cable or FE cable Jumper of the lower cabinet
BTS3900 input power cable Jumper of the upper cabinet
28
Checking the Installation a Checklist for Cabinet Installation SN
Item
1
The installation position of a cabinet complies with the engineering design and space requirements.
2
The base is securely installed.
3
The horizontal error of the cabinets should be less than 3 mm. The vertical error should not exceed 3 mm.
4
All screws are tightened, especially for electrical connection. The flat washers and spring washers must be complete and cannot be installed reversely.
5
Cabinets are clean. There is no dust inside or outside the cabinets.
6
Cabinets are clean and meet the dustproof requirement.
7
The external paint is satisfactory.
8
The front doors and locks of the cabinets can be opened and closed flexibly.
9
Labels are correct, legible, and complete.
b Checklist for Installation Environment SN
Item
1
There are no fingerprints or other smudges on the surface of the BTS3900.
2
There are no unnecessary adhesive tapes or cable ties left on the cables.
3
There are no adhesive tapes, cable ties, wastepaper, or packing bags around the BTS3900.
4
All the stuff around the BTS3900 is neat, clean, and intact.
29
Checking the Installation c Checklist for the Electrical Connection of the Cabinet SN
Item
1
All self-made PGND cables must be copper-based with proper wire diameters. No switch, fuse, or short circuit is allowed on the cable.
2
According to wiring diagram of the power system, check whether the grounding cables are securely connected, whether the AC lead-in and cables inside the cabinet are properly connected, and whether the screws are tightened.
3
The redundant part of the power cable or PGND cable is stripped off rather than coiled.
4
The lugs at both ends of the power cable or the PGND cable are securely soldered or crimped.
5
Bare wires and lug handles at the wiring terminals are tightly wrapped with insulating tapes or heat-shrinkable tubes.
6
The flat washers and spring washers are well mounted on all wiring terminals.
7
The connectors of all cables are securely connected, especially those at the bottom of the cabinet.
8
All cables are neatly bound with ties installed at even intervals, to a proper tightness, and in the same direction.
9
The power cables and PGND cables are bound separately from other cables.
10
The cable routing facilitates maintenance and capacity expansion.
11
Both ends of all cables are clearly labeled.
12
Extra cable ties are cut off. The cut surface does not have any sharp edges
30
Checking the Power-On Status Start
Clear the fault Power on the BTS3900
Power off the BTS3900
a Are all LEDs on the PSUs and PMU normal (optional)?
No
Yes
a The normal status of the LEDs on the PMU is as follows: RUN: 0.25s ON, 0.25s OFF ALM: OFF steady The normal status of the LEDs on each PSU is as follows: Power input LED: ON steady Protection LED: OFF steady Fault LED: OFF steady
Power on the DCDU-01
b
b
The voltage of the DCDU-01 output from -38.4 V to -57 V DC is allowed.
No Is the DCDU-01 output voltage normal?
c Yes Set the FAN power switch on the DCDU-01 to ON
Clear the fault
Power off the FAN unit
The normal status of the LEDs on the WMPT is as follows: • RUN: flashing at 0.5 Hz (ON for 1s and OFF for 1s) • ALM: OFF steady ACT: ON steady The normal status of the STATE LED on the UBFA is that the LED flashes at 0.5 Hz (ON for 1s and OFF for 1s).
No Does the FAN unit work properly?
The normal status of the RUN LED on the UPEU is ON steady.
Yes Set the BBU power switch on the DCDU-01 to ON
Clear the fault
c
Power off the BBU Are all LEDs on the BBU normal?
No
Yes
d
Set the WRFU power switches on the DCDU-01 to ON
Clear the fault
d
Power off the WRFUs Are all LEDs on the WRFUs
The normal status of the LEDs on each WBB Pis as follows: RUN: flashing at 0.5 Hz (ON for 1s and OFF for 1s) ALM: OFF steady
No
normal?
Yes End
31
The normal status of the LEDs on each WRFU is as follows: RUN: flashing at 0.5 Hz (ON for 1s and OFF for 1s) ALM: OFF steady TX_ACT: ON steady VSWR: OFF steady CPRI0 and CPRI1: green and ON steady
Appendix a Removing the Cabinet Door
Remove the equipotential cable from the lower part of the cabinet door. After that, rotate the spring pin counterclockwise by 90 degrees and press the pin to remove the cabinet door.
When removing the cabinet door, make sure that it does not fall off suddenly and hurt operators.
b Installing the Cabinet Door After the spring pin is rotated towards the installation hole, rotate it clockwise until it is tight against the cabinet door.
After the cabinet door is installed, install the equipotential cable for the cabinet door.
32
Appendix c Installing the Cabinets in Side-by-Side Mode z Before installing two cabinets side by side, you must ensure that the two bases of the cabinets are installed closely. z When two cabinets are combined, the left cabinet is the primary cabinet, and the right cabinet is the extension cabinet.
1. Remove the connecting piece on the top of each cabinet.
Connecting piece
2. Rotate the connecting piece by 90 degree, connect the connecting piece to the other cabinet, and then fix the connecting pieces with bolts.
33
Appendix d Installing Cabinets in Stack Mode 1. Remove the fillers and connecting pieces from the top of the lower cabinet, and then install the delivered installation blocks at the rear on the top of the cabinet. When old and new cabinets are stacked, the upper cabinet is the new one. For details, see the corresponding installation scenario.
2. Remove the front door and equipotential cable of the upper cabinet. For details, see page 32. 3. Remove the cover plate on the top of the upper cabinet.
34
Appendix d Installing Cabinets in Stack Mode 4. Tighten all the screws and secure the cabinets.
When installing the upper cabinet, remove the WRFUs of the upper cabinet first for the convenience of operation.
M12X60
45N•m
35
Appendix e Installing PGND cable in Stack Mode and Side-by-Side Mode 1. For -48 V cabinets in side-by-side mode Grounding Bar
M8
2. For -48 V cabinets in stack mode
M6
M6
M6
M6
PGND Cable Equipotential Cable
36
Appendix e Installing PGND cable in Stack Mode and Side-by-Side Mode 3. For +24 V cabinets in side-by-side mode
4. For +24 V cabinets in stack mode
Grounding Bar
M8
M8
M6
M6
M6 M6
PGND Cable Equipotential Cable
The methods of installing equipotential cables and PGND cables for the 220 V cabinets in side-by-side mode and stack mode are the same as those for the -48 V cabinets. For details, see page 36.
37
Appendix f Waterproofing Outdoor Cables z The joint is wrapped with waterproof tapes for 20 mm at each side. z Wrap the joint spirally upward, downward, and then upward again. In other words, the joint is wrapped by three layers of insulating tape. Do not cut the tape when wrapping the joint.
Waterproof tape
z When you wrap the waterproof tape, the upper layer of the tape covers over 50% of the lower layer. z Insulting tapes cover waterproof tapes and extend 20 mm over the waterproof tape at each side.
Insulating tape Wrap three layers of waterproof tapes.
Squeezing the tapes
Wrap three layers of insulating tapes. Cable tie
Cable tie
Squeezing the tapes
38
Binding the cables with cable ties at both ends
Appendix g Assembling OT Terminals and Cables Lead the cable through the heat-shrinkable tube and place the OT terminal on the exposed conductor.
Strip off the cable jacket in L1 length to expose the conductor of the cable.
L1 L2
L1 Heat-shrinkable tube
Conductor of the cable
When stripping off the cable jacket, do not damage the conductor of the cable.
z The OT terminal should be in close contact with the insulated jacket of the cable. z After you place the OT terminal on the conductor, ensure that the length of the exposed conductor (indicated by L2 in the above figure) does not exceed 2 mm.
Use the crimping pliers to crimp the end of the OT terminal and the conductor of the cable.
Install the heat-shrinkable tube.
Crimping pliers
39
Appendix h Check the DIP switches. 1. Removing or installing a board
BBU3900 configuration
0
Please wear the ESD wrist strap before removing or installing a board. Default board configuration: a) The WBBP is configured in slots 2 and 3, and WMPT is configured in slot 7. b) The optional boards UTRP or UELP/UFLP is preferentially configured in slot 4. If both the UTRP and UELP/UFLP are configured, the UTRP is configured in slot 4 and the UELP/UFLP is configured in the SLPU.
Removing a board
The methods of installing boards in or removing boards from the BBU3900 and SLPU are the same.
Installing a board
40
Appendix h Check the DIP switches.
2. Checking the DIP switches on the WMPT
75-ohm E1
120-ohm E1
T1
3. Checking the DIP switch on the UELP
75-ohm E1
Other modes
41
Appendix i Pin Assignment for the Wires of the E1 Cable 1. Pin assignment for the wires of the 75-ohm E1 coaxial cable
Pin on the DB26 Male Connector
Wire Type
X1.1
Tip
X1.2
Ring
X1.3
Tip
Coaxial SN
Label RX1+
1 RX1RX2+ 3 X1.4
Ring
X1.5
Tip
RX2RX3+ 5
X1.6
Ring
RX3-
X1.7
Tip
RX4+
X1.8
Ring
X1.19
Tip
7 RX4TX1+ 2 X1.20
Ring
TX1-
X1.21
Tip
TX2+
X1.22
Ring
X1.23
Tip
4 TX2TX3+ 6 X1.24
Ring
X1.25
Tip
TX3TX4+ 8
X1.26
Ring
TX4-
42
Appendix i Pin Assignment for the Wires of the E1 Cable 2. Pin assignment for the wires of the 120-ohm E1 twisted pair cable
Pin on the DB26 Male Connector
Wire Color
X.1
Blue
X.2
White
X.3
Orange
Wire Type
Label RX1+
Twisted pair RX1RX2+ Twisted pair X.4
White
RX2-
X.5
Green
RX3+
X.6
White
X.7
Brown
Twisted pair RX3RX4+ Twisted pair X.8
White
X.19
Gray
RX4TX1+ Twisted pair
X.20
White
TX1-
X.21
Blue
TX2+
X.22
Red
X.23
Orange
Twisted pair TX2TX3+ Twisted pair X.24
Red
TX3-
X.25
Green
TX4+
X.26
Red
Twisted pair TX4-
43
Change History This describes the changes in the BTS3900 WCDMA Installation Guide versions. Issue 01 (2009-06-30) This is the first commercial release.
44
HUAWEI TECHNOLOGIES CO., LTD. Huawei Industrial Base Bantian Longgang Shenzhen 518129 People’s Republic of China www.huawei.com
