BTS3900 Wcdma Installation Guide

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HUAWEI TECHNOLOGIES CO., LTD.

BTS3900 WCDMA V200Installation Guide

Issue: 01Part Number: 31504728Date: 2009-06-30



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 ……………………………………………

2

37

13

1415

17

20

2428

29

31

3244



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.



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)




Installation Procedure


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




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)




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



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.



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



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.


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



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


55

≥800


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



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


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



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



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



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



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.



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



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.




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


1. Installing the PSU

2. Installing the input power cable

M8




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


Removing the

short-circuiting bars

Short-circuiting

bars bars

When arranging for the power cable on site, do not expose the metal wire.



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


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.




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





Transmission device or RNCFE0 port on the WMPTFE cable

ToFrom


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.




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


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.





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




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



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 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


RFU4: RX_INB RFU5: RX_OUTA


RFU2&3

RFU4&5

To



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.



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



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



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



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



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



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.



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





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



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



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.



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.



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.



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



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



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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Documents

BTS3900 Wcdma Installation Guide