HUAWEI TECHNOLOGIES CO., LTD. BTS3900 WCDMA V200 Install ati on Gui de Issue: 01 Part Number: 31504728 Date: 2009-06-30
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HUAWEI TECHNOLOGIES CO., LTD.
BTS3900 WCDMA V200Installation Guide
Issue: 01Part Number: 31504728Date: 2009-06-30
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Contents
Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
I. Safety Information ……………………………………………
II. Information About the Installation …………………………III. Installing the Base …………………………………………
IV. Installing the Cabinet ………………………………………
V. Installing the Cabinet PGND Cable ………………………
VI. Checking the Equipment and Cables ……………………VII. Installing the Power Cables ………………………………
VIII. Installing the Transmission Cables ……………………
IX. Installing the RF Cables ……………………………………X. Routing the Cables …………………………………………XI. Checking the Installation …………………………………
XII. Checking the Power-On Status …………………………
XIII. Appendix ……………………………………………………
XIV. Change History ……………………………………………
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37
13
1415
17
20
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Following All Safety PrecautionsBefore any operation, read the instructions and precautions in this document carefully to minimize the possibilityof 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 safetyinstructions related to corresponding equipment provided by Huawei. The safety precautions in the documentare related to only Huawei products. Huawei is not liable for any consequence that results from the violation ofuniversal regulations for safety operations and safety codes on design, production, and equipment use.
Complying with the Local Safety RegulationsWhen operating the device, comply with the local safety regulations. The safety precautions provided in thedocuments are supplementary. You must comply with the local safety regulations.
Qualified Personnel OnlyThe personnel in charge of installation and maintenance must be trained and master the correct operatingmethods and safety precautions before beginning work.
Symbols
Safety of Personnel• The high voltage power supply provides power for running the system. Direct contact with the high voltagepower 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 steeltower 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 antennaon a steel tower or mast with a large number of transmitter antennas, the operator should coordinate with allparties 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 onthe circuit board, such as the large-scale integrated circuit (LIC). Wear an ESD wrist strap or ESD gloves whenperforming 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 power-off state of the equipment is 24 hours during maintenance.
Safety Information
Indicates a hazard with a high level of risk, which if not avoided,will result in death or
serious injury.DANGER
WARNING
CAUTION
TIP
NOTE
Indicates a hazard with a medium or low level of risk, which if not avoided, could result
in minor or moderate injury.
Indicates a potentially hazardous situation, which if not avoided,could result in
equipment damage, data loss, performance degradation, or unexpected 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.
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Prepare for the installation
Installation Tools
Phillips screwdriver
(M3 to M6)
Flat-head screwdriver
(M3 to M6)
Socket wrench Torque wrench
Crimping pliers forpower cables
RJ-45 crimping pliers Wire cutter
Rubber hammer Iron Wire stripper
Percussion drill (Ø16) Heat gun Level bar
Multimeter Long measuring tape Cleaner
Marking pen
Adjustable wrench(32 mm capacity)
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Prepare for the installation
Installation Procedure
Prepare for the installation
Start
Installing power cables
Installing transmission cables
Installing RF cables
Routing cables
Checking the installation
End
Installing the base on the
concrete floor
Installing the base on the ESD
floor
Installing the cabinet
Checking components andcables
Power-on check
Installing the PGND cable for
the cabinet
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Prepare for the installation
c Hardware Structure of the BTS3900
The BTS3900 cabinet supports three different kinds of power inputs, that is, -48 V DC, +24 V DC, and 220 V AC. The hardware structure of the cabinet varies with power distribution. The +24 V and 220 V BTS3900 cabinets support a maximum of six RFUs, and cannot be stacked with the -48 VBTS3900 cabinet. The +24 V and 220 V BTS3900 cabinets cannot be installed in stack mode. If the cabinets must be installed instack mode, the ambient temperature should be decreased to -20℃~50℃.
Hardware structure of the
BTS3900 (-48 V)
Hardware structure of the
BTS3900 (+24 V)
Hardware structure of
the BTS3900 (220 V)
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Prepare for the installation
d Space Requirements (Unit: mm)
The cable colors, equipment appearance in this guide is for your reference only. For the appearance of thecomponents, see the components on site.
Space requirements of the BTS3900 cabinet installation are described as follows:
The rear of the cabinet can be in contact with the wall.
The side of the cabinet can be in contact with the wall.
An aisle of at least 800 mm wide should be left in front of the cabinet for maintenance.
A space of at least 200 mm is left between the top of the upper cabinet and the roof for easy
feeder cabling.
900
40
4 5 0
4 2 0 6 0 0
≥200
≥ 8 0 0
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Installing the Base
Installing the BTS3900 Cabinet on the Concrete Floor
Bolt M12x60
Spring washer Flat washer
Expansion tube
52~60
90
Ø16
Interior wall or reference object
Front of the base
Concrete floor
Mounting hole for the expansion bolt
Hole for
fixing
the
base
1 Determining the position for installing the cabinet (unit: mm)
2 Drilling holes at the marked points and then installing the expansion bolts
Protect yourself when drilling holes. Otherwise, flying dust may hurt your eyes or you may inhale the dust.
The depth of the holes must range from 52 mm to 60 mm. All the holes must be in the same depth. The expansion tube must be fully buried into the floor to ensure that the cabinet can stand steady on the floor.
Marking plate Front edge of
the cabinet door
Label the board to align the front edge of thecabinet door.
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Installing the Base
Installing the BTS3900 Cabinet on the Concrete Floor
3 Installing the base
Placing the insulating spacers
Placing the base
Insulating spacer
Bolt M12x60Spring washer Flat washer
Insulating washer
Installing the expansion bolts
45N•m
M12X60
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Installing the Base
Specifications of the ESD floor
Mapping between the support type and
the height of the ESD floor
Ⅱ At least 120 mm, depending on the
actual floor height.
296 mm - 495 mmⅠ
Height of the ESD Floor Type
Access hole
Support
Mounting hole
Front of the cabinetFront of the base
≥800
55
4-Φ16
M12
ESD floor
Installing the BTS3900 Cabinet on the ESD Floor
There are two types of ESD floor supports for theBTS3900. One is height- adjustable and the other is height-fixed. The height of the ESD floor refers to the distance fromthe concrete floor to the upper surface of the ESD floor.
Protect yourself when drilling holes. Otherwise, flyingdust may hurt your eyes or you may inhale the dust. After the holes are drilled, use the vacuum cleaner toremove the dust both inside and around the holes. If theinter-hole distance is too long or too short, locate and drillholes again.
Interior wall or reference object
2 Drill ing holes at the marked points on the ESD floor
1 Determining the position of the base on ESD floor (unit : mm)
52~60
Front of the base
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Installing the Base
Bolt M12x70
Spring washer 12
Flat washer 12ESD floor
Access hole
Support
Mounting hole
Support of the ESD floor
Concretefloor
ESD floor Position of thebase on theESD floor
Interior wall or reference object
55
≥800
Installing the BTS3900 Cabinet on the ESD Floor
Place the support under the ESD floor, and use bolts M12x70 to secure the floor with the
support temporarily.
3 Securing the floor with the support temporarily
4 Determining the position of the support on the concrete floor (unit: mm)
Front of the cabinetFront of the base
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Installing the Base
ESD floor
Height locking bolt
Height locking bolt
Expansion bolt M12x60
Bolt M12x70
Spring washer Flat washer
Bolt M12x60
Spring washer 12
Flat washer 12
ESD floor Base
Installing the BTS3900 Cabinet on the ESD Floor
5. Drill holes on the ESD floor and install
the expansion bolt assembly.
Protect yourself when drilling holes. Otherwise, flying dustmay hurt your eyes or you may inhale the dust. The depth of the holes must range from 52 mm to 60 mm. All the holes must be in the same depth. The expansion tube must be fully buried into the floor toensure that the cabinet can stand steady on the floor.
During this operation, fix the heightlocking bolts (middle) and then the heightlocking bolts (side).
6. Fixing the support
7. Installing the base on the ESD floor
Insulating washer
Spring washer 12
Flat washer 12
Insulating spacer
M12x60 boltFlat washer 12Spring washer 12
Expansion tube
52~60mm
Ø1690°
45N•m
M12X60
45N•m
M12X60
45N•m
M12X70
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Level bar
Adjusting bolts M12x25
Adjusting bolt
installed on site
Installing the Base
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.
Measuring the Resistance Between the Base and the Bolts
e Installing the Installation Blocks on the Base
If the bubble in the level bar is in the
middle, you can infer that the base is
horizontal.
Multimeter The resistance between the base and
the four expansion bolt assemblies should
be respectively measured.
If the resistance is less than 5 megohm,
you can infer that the base and the earth
are not insulated. In this case, you needto 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.
M12x35 boltSpring washer
Flat washer
Installation block
During the installation, discard the
installation blocks delivered with the base
and use installation blocks delivered withthe cabinet.
45N•m
M12X35
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Installing the Cabinet
Installing the cabinet on the base
Place the cabinet on the base and
push the cabinet gently along the slots.
Use a torque wrench to tighten the
cabinet to the base.
During the installation, do not place any object on
the cabinet top. Otherwise, it may fall into the
cabinet.
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 powersubrack 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.
Blot M12x25
45N•m
M12X25
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Installing the Cabinet PGND Cable
M8
M8
1. Installing the PGND cable for the -48 V cabinet
2. Installing the PGND cable for the +24 V cabinet
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 )
The cross-sectional area of the PGND cable is 25 mm2. The other end of the PGND cable should beconnected to the external grounding bar before the other installation operations can be performed. To facilitate the operation, you can remove the cabinet door before installing the PGND cable. For details, see
pages 32. The OT terminals of the PGND cable should be made on site. For details, see page 39.
PGND cable
OT terminal
Screw
External
grounding bar
External
grounding bar
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Checking the Equipment and Cables
Checking the Equipment
WRFU
FAN
BBU3900
DCDU-01
Position of the SLPU (optional)
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 theconfiguration 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.
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Checking the Equipment and Cables
GPSsignalcable
ELUsignalcable
WRFU
Fan box in thecabinet
BBU power module
Power cable
Power cable
WBBP DCDU-01
E1 surge protection transfer cable (optional)
GPSsignalcable
FE surge protection transfer cable (optional)
UELP
(Optional)
Checklist for the connected cables:1 When being lightly pulled, the CPRI electrical cable doesnot detach from the port.2 The screws on both sides of the DIN-type connector aretightened.3 The power cables are securely connected to the DCDU-01.4 The GPS signal cable is securely connected to the WMPT.
Power cables forthe BBU, RFUs,and FAN unit
CPRI electricalcables andmonitoring cables
Surge protectiontransfer cable
Monitoringcable
WMPT
UFLP
WMPT
Checking the Connected Cables
The upper figure on the right shows the configurationthat the WMPT and UELP are configured in the BBU3900.The lower figure on the right shows the configurationthat the WMPT and UFLP are configured in the BBU3900.The cable connections in position vary with the boardconfigurations. The optional E1/T1 surge protection transfer cable or FE
surge protection transfer cable is used with the UELP/UFLP.
f
f
f
Power cables for the BBU, RFUs, and FAN unit
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Installing the Power Cables
Installing -48 V Power Cables
Power input wiring terminal block
on the DCDU-01: The blue power
cable is connected to the NEG(-)
terminal and the black power cableto the RTN(+) terminal
External power
supply
Input power cable (-48 V)
ToFrom
Installation PositionName
RTN(+)
NEG(-)
Attach labels before routing cables. When cutting the BTS3900 input power cable, reserve an extra length of 300 mm. Add an OT terminal to thecable on site. For details, see page 39.
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Installing the Power Cables
Installing the +24 V Power Cable
+ terminal and -
terminal on the wiring
unit of the power
subrack
External power
supply
Input power cable
(+24 V)
ToFrom
Installation PositionName
1. Installing the PSU
2. Installing the input power cable
M8
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Installing the Power Cables
c Installing the 220 V Power Cable
220 V single-phase AC input
220 V three-phase AC input
110 V dual-live-wire AC input
L1 N1
L1 N1
L2
L3
L1 L2
L1 and N1 terminals
on the wiring unit of
the power subrack
External power supplyInput power cable (220 V
single-phase)
ToFrom
Installation PositionName
Removing the
short-circuiting bars
Short-circuiting
bars bars
When arranging for the power cable on site, do not expose the metal wire.
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Installing the Transmission Cables
Transmission device or RNCE1/T1 port on the WMPTE1 cable (75 ohm)
Transmission device or RNCE1/T1 port on the WMPTE1 cable (120 ohm)
ToFrom
Installation PositionName
Installing the E1 Cable
1. Installing the E1 cable
E1/T1
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. The procedures for installing -48 V DC, +24 V DC, and 220 V AC transmission cables are the same. Thisdocument takes the installation of -48 V DC transmission cable as an example.
Based on transmission mode, only one type of E1/T1 cable needs to be installed. Alternatively, FE cable isinstalled if FE transmission mode is used. Ensure that both ends of the E1 cable are disconnected. Then, weld connectors to the bare wires at one end ofthe E1 cable all at once.
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Installing the Transmission Cables
Installing the E1 cable
The UELP is optional. It can be installed in the SLPU or slot 4 of the BBU3900. The SLPU is also optional. The UTRP is optional. It can be installed in slot 4 of the BBU3900.
2. Installing the E1 cable whenthe UELP is configured
3. Installing the E1 cable when theUTRP is conf igured
INSIDEOUTSIDE
E1/T1(0-3)
E1/T1
(4-7)
Transmission device or
RNC
OUTSIDE port on the UELPE1 cable (when the
UELP is configured)
Transmission device or
RNC
E1/T1(0-3 or E1/T1(4-7) port on the
UTRPE1 cable (when the
UTRP is configured)
ToFrom
Installation PositionName
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Installing the Transmission Cables
Transmission device or RNCFE0 port on the WMPTFE cable
ToFrom
Installation PositionName
Installing the FE Cable
1. Installing the FE cable
FE0
Label the cables before routing them. 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.
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Installing the Transmission Cables
Installing the FE Cable
2. Installing the FE cable when the
UFLP is conf igured
3. Install ing the FE cable when
the UTRP is configured
INSIDE OUTSIDE
FE/GE 0 FE/GE 1
Transmission device or RNCOUTSIDE port on the UFLPFE cable (when
the UFLP is
configured)
Transmission device or RNCFE/GE 0 or FE/GE 1 port on
the UTRP
FE cable (when
the UTRP isconfigured)
ToFrom
Installation PositionName
The UFLP is optional. It can be installed in the SLPU or slot 4 of the BBU3900. The SLPU is also optional.
The UTRP is optional. It can be installed in slot 4 of the BBU3900.
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Installing the RF Cables
At taching Color Rings
2. Attaching color rings
3. Configuration scheme of color r ingsTypical configuration scheme
One blue ringTwo blue rings3
One yellow ringTwo yellow rings2
One red ringTwo red rings1
DiversityMainSector
Other configuration schemes
Three blue ringsFour blue rings3
Three yellow ringsFour yellow rings2
Three red ringsFour red rings1
Diversity (Antenna 2)Main (Antenna 2)Sector
If two antennas of the same system are co-sited, the color ring configuration ofthe second antenna is listed as follows:
3
2
One white ring + two red rings1
Diversity (System 2)Main (System 2)Secto
r
If several systems are co-sited, the color ring configuration of the second
antenna system is listed as follows:
The rules of attaching color rings are subject to the local standards. The color rings should be wrapped correctlyand in the same direction. Each color ring should be wrapped for two or three layers and the upper layer shouldcover the lower one. The spacing between two adjacent rings ranges from 10 mm to 15 mm.
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. If there are six sectors in the antenna system, the color rings for sector 4, 5, and 6 are purple, orange, and greenrespectively.
One white ring + two yellow rings
One white ring + two blue rings
One white ring + one yellow ring
One white ring + one red ring
One white ring + one blue ring
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Installing the RF Cables
Installing the RF Jumper
ANT_RXB
ANT_TX/RXA
ANT_RXB
ANT_TX/RXA
3 RFUs; 3 sectors
The installation sequence is from top tobottom and from both sides to the middle. When bending the RF jumpers, do notdamage the jackets of the jumpers.
To facilitate future capacity expansion by stackingcabinets, ensure that an extra length of 300 mm isreserved for each jumper. If a single cabinet is installed, the RF jumpers are
routed along the left and right cable troughs. When adding a DIN connector, use a wrench totighten it until the fastening torque is 25 N•m to 35N•m. The connectors of the jumpers should be properlyadded and securely linked to the modules. The requirement for bending radius of the 1/2-inchsuper-flexible jumper is more than 50 mm.
6 RFUs; 6 sectors
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RX_INB、RX_OUTA
ANT_TX/RXA
6 RFUs; 3 sectors
When bending the RF jumpers, do not damagethe jackets of the jumpers.
Installing the RF Cables
Installing the RF Jumper
Connections between RX_INB and RX_OUTA:
FromRFU
RFU0&1RFU0: RX_INB RFU1: RX_OUTA
RFU0: RX_OUTA RFU1: RX_INB
RFU2: RX_INB RFU3: RX_OUTA
RFU2: RX_OUTA RFU3: RX_INB
RFU4: RX_INB RFU5: RX_OUTA
RFU4: RX_OUTA RFU5: RX_INB
RFU2&3
RFU4&5
To
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Routing the Cables
Routing Cables of a Single Cabinet
Top view of a single cabinet
PGND cable
Jumper
E1/T1 cableor FE cable
BTS3900 input
power cable
Jumper
Routing Cables of Stacked Cabinets
PGND cable
BTS3900 input
power cable
Jumper of the upper cabinet
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)
E1/T1 cableor FE cableJumper of the
lower cabinetJumper of
the lowercabinet
The routing of -48 V DC cabinet, +24 V DC cabinet, and 220 V AC cabinet is the same.
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Checking the Installation
Labels are correct, legible, and complete.9
The front doors and locks of the cabinets can be opened and closed flexibly.8
The external paint is satisfactory.7
Cabinets are clean and meet the dustproof requirement.6
Cabinets are clean. There is no dust inside or outside the cabinets.5
All screws are tightened, especially for electrical connection. The flat washers and
spring washers must be complete and cannot be installed reversely.4
The horizontal error of the cabinets should be less than 3 mm. The vertical error should
not exceed 3 mm.3
The base is securely installed.2
The installation position of a cabinet complies with the engineering design and space
requirements.
1
ItemSN
All the stuff around the BTS3900 is neat, clean, and intact.4
There are no adhesive tapes, cable ties, wastepaper, or packing bags around the
BTS3900.
3
There are no unnecessary adhesive tapes or cable ties left on the cables.2
There are no fingerprints or other smudges on the surface of the BTS3900.1
ItemSN
Checklist for Installation Environment
Checklist for Cabinet Installation
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Checking the Installation
ItemSN
Extra cable ties are cut off. The cut surface does not have any sharp edges12
Both ends of all cables are clearly labeled.11
The cable routing facilitates maintenance and capacity expansion.10
The power cables and PGND cables are bound separately from other cables.9
All cables are neatly bound with ties installed at even intervals, to a proper tightness,
and in the same direction.
8
The connectors of all cables are securely connected, especially those at the bottom of
the cabinet.
7
The flat washers and spring washers are well mounted on all wiring terminals.6
Bare wires and lug handles at the wiring terminals are tightly wrapped with insulating
tapes or heat-shrinkable tubes.
5
The lugs at both ends of the power cable or the PGND cable are securely soldered or
crimped.
4
The redundant part of the power cable or PGND cable is stripped off rather than coiled.3
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.
2
All self-made PGND cables must be copper-based with proper wire diameters. No
switch, fuse, or short circuit is allowed on the cable.
1
c Checklist for the Electrical Connection of the Cabinet
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Checking the Power-On Status
Start
End
No
Clear the fault
Power off the BBU
Power off the WRFUs
Yes
VSWR: OFF steady
The normal status of the LEDs oneach WRFU is as follows:
RUN: flashing at 0.5 Hz(ON for 1s and OFF for 1s)
ALM: OFF steady
TX_ACT: ON steady
CPRI0 and CPRI1:green and ON steady
The normal status of the LEDs onthe 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 RUN LEDon the UPEU is ON steady.
The normal status of the LEDs oneach WBB Pis as follows:
RUN: flashing at 0.5 Hz
(ON for 1s and OFF for 1s) ALM: OFF steady
The normal status of the STATE
LED on the UBFA is that the LED
flashes at 0.5 Hz (ON for 1s andOFF for 1s).
The voltage of the DCDU-01 output
from -38.4 V to -57 V DC is allowed.
The normal status of the LEDs on thePMU is as follows:
RUN: 0.25s ON, 0.25s OFF
ALM: OFF steady
The normal status of the LEDs oneach PSU is as follows:
Power input LED: ON steady
Protection LED: OFF steady
Fault LED: OFF steady
Power off the BTS3900
Clear the fault
Power off the FAN unit
No
No
No
No
Yes
Yes
Yes
Yes
Power on the BTS3900
Are all LEDs on the PSUs
and PMU normal (optional)?
Power on the DCDU-01
Is the DCDU-01 output voltage normal?
Set the FAN power switch on the
DCDU-01 to ON
Does the FAN unit work properly?
Are all LEDs on the BBU normal?
Set the BBU power switch on the
DCDU-01 to ONClear the fault
Clear the fault
Are all LEDs on the WRFUs
normal?
Set the WRFU power switches on
the DCDU-01 to ON
a
b
c
d
a
b
c
d
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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.
After the spring pin is rotated towards the
installation hole, rotate it clockwise until it
is tight against the cabinet door.
When removing the cabinet door, make sure
that it does not fall off suddenly and hurt
operators.
After the cabinet door is installed, install the
equipotential cable for the cabinet door.
Appendix
Removing the Cabinet Door
Installing the Cabinet Door
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Appendix
Installing the Cabinets in Side-by-Side Mode
Before installing two cabinets side by side, you must ensure that the two bases of the cabinets are
installed closely. When two cabinets are combined, the left cabinet is the primary cabinet, and the right cabinet is the extensioncabinet.
Connecting
piece
1. Remove the connecting piece on the top of each cabinet.
2. Rotate the connecting piece by 90 degree, connect the connecting
piece to the other cabinet, and then fix the connecting pieces with bolts.
c
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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.
2. Remove the front door and equipotential cable of the upper cabinet.For details, see page 32.
When old and new cabinets are stacked, the upper cabinet is the newone. For details, see the corresponding installation scenario.
3. Remove the cover plate on the top of the upper cabinet.
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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.
45N•m
M12X60
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Appendix
e
PGND Cable
Equipotential Cable
Grounding Bar
4. For +24 V cabinets in stack
mode
3. For +24 V cabinets in side-by-side
mode
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.
Installing PGND cable in Stack Mode and Side-by-Side Mode
M6
M6M8
M8 M6
M6
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Appendix
f Waterproofing Outdoor Cables
The joint is wrapped with waterproof tapes for 20 mm ateach side.
Wrap the joint spirally upward, downward, and thenupward again. In other words, the joint is wrapped by threelayers of insulating tape. Do not cut the tape whenwrapping the joint.
When you wrap the waterproof tape, the upper layer ofthe tape covers over 50% of the lower layer.
Insulting tapes cover waterproof tapes and extend 20 mmover the waterproof tape at each side.
Waterproof tape
Insulating tape
Wrap three layers of waterproof tapes.
Wrap three layers of insulating tapes.
Squeezing the tapes
Cable tie
Cable
tie
Squeezing the tapesBinding the cables with
cable ties at both ends
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Appendix
Assembling OT Terminals and Cables
Lead the cable through the heat-shrinkabletube and place the OT terminal on theexposed conductor.
Strip off the cable jacket in L1 length toexpose the conductor of the cable.
L2
L1
L1Heat-shrinkable
tubeConductor of thecable
Use the crimping pliers to crimp the endof the OT terminal and the conductor ofthe cable.
Install the heat-shrinkable tube.
Crimping pliers
When stripping off the cable jacket, do not damagethe conductor of the cable.
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 notexceed 2 mm.
The OT terminal should be in close contact withthe insulated jacket of the cable.
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Appendix
h Check the DIP switches.
1. Removing or installing a boardBBU3900 configuration
Default board configuration:
a) The WBBP is configured in slots 2 and 3, and WMPT isconfigured in slot 7.
b) The optional boards UTRP or UELP/UFLP is preferentiallyconfigured in slot 4. If both the UTRP and UELP/UFLP areconfigured, the UTRP is configured in slot 4 and the UELP/UFLP isconfigured in the SLPU.
Removing a board Installing a board
The methods of installing boardsin or removing boards from theBBU3900 and SLPU are the same.
0
Please wear the ESD wrist strap before removing or installing aboard.
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Appendix
2. Checking the DIP switches on the WMPT
3. Checking the DIP switch on the UELP
75-ohm E1
75-ohm E1 120-ohm E1
T1
Other modes
h Check the DIP switches.
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TX4-RingX1.26
TX4+8
TipX1.25
TX3-RingX1.24
TX3+6
TipX1.23
TX2-RingX1.22
TX2+4
TipX1.21
TX1-RingX1.20
TX1+2
TipX1.19
RX4-RingX1.8
RX4+7
TipX1.7
RX3-RingX1.6
RX3+5
TipX1.5
RX2-RingX1.4
RX2+3
TipX1.3
RX1-RingX1.2
RX1+1
TipX1.1
LabelCoaxial SNWire TypePin on the DB26 Male Connector
Appendix
i Pin Assignment for the Wires of the E1 Cable
1. Pin assignment for the wires of the 75-ohm E1 coaxial cable
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TX4-RedX.26
TX4+Twisted pair
GreenX.25
TX3-RedX.24
TX3+Twisted pair
OrangeX.23
TX2-RedX.22
TX2+Twisted pair
BlueX.21
TX1-WhiteX.20
TX1+Twisted pair
GrayX.19
RX4-WhiteX.8
RX4+Twisted pair
BrownX.7
RX3-WhiteX.6
RX3+
Twisted pair
GreenX.5
RX2-WhiteX.4
RX2+Twisted pair
OrangeX.3
RX1-WhiteX.2
RX1+Twisted pair
BlueX.1
LabelWire TypeWire Color Pin on the DB26 Male Connector
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
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Change History
This describes the changes in the BTS3900 WCDMA Installation Guide versions.
Issue 01 (2009-06-30)
This is the first commercial release.
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