Bscb-mbts Installation Documentation

8/14/2019 Bscb-mbts Installation Documentation

1/38

BSCB

Hardware InstallationDocumentation

Prepared by,

S.Selvapriyan,

Installation Document 1


2/38

Telecom Engineer,

Tamilnadu Circle,

Mob: +91 9842706562

Email: [email protected]

INDEX

1. BSCB Z7 MODEL IN HUBLI

2. BSCB SWITCHING RACKS MOUNTING

3. SERVER RACK

4. POWER SYSTEM INSTALLATION

4.1. DC POWER SUPPLY FOR BSCB4.2. AC POWER SUPPLY FOR SERVER

5. GROUNDING SYSTEM

6. INTERNAL CABLE CONNECTIONS

.

6.1 FRONT BOARD CONNECTION

GLIQV- UIMU CONNECTIONS

6.2 REAR BOARD CONNECTIONS

6.2.1 CLOCK CABLE CONNECTION

6.2.2 RCHUB DISTRIIBUTION

6.2.3 GPS 8K CABLE CONNECTION

6.2.4 GPS PP2S & 16 CHIP CLOCK CABLE

6.2.5 LINE 8K CABLE CONNECTION

6.2.6 RS 485 CABLE

6.2.7 PDSN BSCB CONNECTION6.2.8 BSCB SERVER CONNECTION

6.2.9 CROSS CABINET PWRD 485 CABLE

7. DDF INSTALLATION



3/38

8. GPS ANTENNA INSTALLATION

8.1 MAKING PRIMARY FEEDER CABLE CONNECTOR

8.2 GPS ANTENNA REQUIREMENTS

8.3 GPS FEEDER CABLE SPECIFICATION

8.4 LIGHTNING ARRESTER REQUIREMENTS8.5 GPS GROUNDING CONNECTOR

9. MBTS INTRODUCTION

10.RBTS - INTRODUCTION

11.POWER CABLE AND GROUNDING CABLE

12. MBTS RBTS CONNECTION

12.BALUN CIRCUIT

13.DIP SWITCH SETTINGS

14.ZTE ODF

15.RJ 45 CONNECTOR



4/38

1. BSCB Z7 MODEL IN HUBLI

2.Cabinet Mount:



5/38



6/38



7/38

3.Server Cabinet :

4. POWER SYSTEM INSTALLATION

BSC has two types of power supplies such as:

-48 V DC supply for the BSC and alarm box 220 V AC supply for server, router, Ethernet switch, and background terminals.

MCBs OF SERVER:



8/38

This is the power module of BSCB Server. It consists of two sets of MCBs. Each set

having ten MCBs. The rating of the first MCBs on either side is 32 amps. The ratingof the remaining MCBs are 10 amps.

Olive green GroundBlue- Neutral

Brown: Phase or Line

4.1 AC SUPPLY FOR SERVER:

Power cables from server cabinet to AC distribution cabinet are 3-core fire-resistant

cables.

Three cores are brown, blue and black respectively with a cross-sectional area of 4 mm2

each.



9/38

4.2 CONNECTION OF DC POWER CABLE TO BSCB:

1. For easy connection of power cable and grounding cable, designing of each BSCcabinet is -48 V leading-in box, installed at top of cabinet.

2. BSCB switching rack has 1+1 redundancy for -48V supply.

3. Supply -48 V from DC power cabinet to power distribution plug-in box through filterat top of cabinet. Power module processes it and supplies to each plug-in box through

busbar. -48 V DC power cable is available in 25and 16 mm2 versions.

4. Use 25 mm2

cable Appearance of power cable is be either blue or black. Connect blueone to -48 V DC, and black one to -48 V GND.



10/38


11/38

5. GROUNDING SYSTEM:

1. BSC Grounding

Connect grounding terminal (PE) at top of cabinet to grounding busbar using 35 mm2

stranded copper wire.

Routing of Power cable and grounding cable:



12/38

The grounding cable from BSCB is connected to Indoor Grounding Busbar (IGB).

6.BSCB INTERNAL CABLE CONNECTIONS:

1.FRONT BOARD CONNECTION:2.REAR BOARD CONNECTION

6.1 FRONT BOARD CONNECTIONS:

Optical fiber is used as Media Stream for connecting all the resource shelves.



13/38

GLIQV- UIMU CONNECTIONS:



14/38


RX

TX

RX

TX

RX

TX

RX

TX

UIMU GLIQV CONNECTION

SD1 SD1

UIMU9

UIMU1

0

GLIQV GLIQV

TX

RX

TX

RX

TX

RX

TX

RX

SD2 SD2


15/38

6.2 REAR BOARD CONNECTION:

Ethernet cable is used as Control stream in the rear board side.

6.2.1 CLOCK CABLE DISTRIBUTION:

The system clock cable provides the connection of clock signals (8 K, 16 M and PP2S)from the Clock Generator (CLKG) board to the Universal Interface Module (UIM)

board, to implement system clock distribution. Each system clock cable distributesthe clock signals to six UIM boards in three resource plug-in boxes.

END A END B

BOARD NAME RCLKG RUIM1, RUIM2, RUIM3

PORT NAME CLKOUT CLKIN

CONNECTOR NAME DB 44 DB9



16/38

6.2.2 RCUB DISTRIBUTION:


CLKOUT from RCLKG towards

CLKIN in all the Rear board UIMU &

UIMC.


17/38

ENDA ENDB

BOARD NAME REAR BOARD OF OMP

(RMPB)

UIMU

PORT NAME RCHUB FE C1/2((MASTER &

SLAVE)

RCHUB CONNECTOR:



18/38

End B1

End B2

End B3

End B4

End B5

End B6

End B7

End B8

Label

End A

Label

Label

Label

Label

Label

Label

Label

Label

6.2.3 GPS 8K CLOCK CABLE

The GPS 8 K clock cable sends the 8 K reference clock signals of GPS module to theCLKG for phase locking.

The cable is a 4-core single-strand round wire. Both ends of cable are 8P8C straightcable crimping shielding connectors.

End A is plugging to the position mark with GCM8K on the backplane of GCM

plug-in box, and End B is plugging to the position mark with 8KIN2 on the

RCKG1.

ENDA ENDB

BOARD NAME REAR BOARD OF GCM RCLKG1

PORT NAME GCM 8K 8K IN2

6.2.4 GPS PP2S&16CHIP CLOCK CABLE

The GPS PP2S and 16CHIP clock cable of GCM connects the PP2S and 16CHIP clock

signals of CLKG. The cable is a 4-core single-strand round wire. Both ends of cableare 8P8C straight cable crimping shielding connectors.

End A is plugging to the position mark with GCMCLK0 or GCMCLK1 on the GCM and

End B is plugging to the position marked with PP2S/16CHIP on the RCKG2.

ENDA ENDBBOARD NAME REAR BOARD OF GCM RCLKG1

PORT NAME GCM CLK0 (OR) GCM PP2S/16 CHIP



19/38

CLK1

6.2.5 LINE 8K CABLE:

The line 8 K clock cable sends the 8 K reference clock signals extracting from the line

to the CLKG for phase locking

The cable is a 4-core single-strand round wire. Both ends of cable are 8P8C straightcable crimping shielding connectors, that is, RJ45 connector.

End A is plugging to the position marked with 8KOUT/DEBUG-232 on the Rear Card of

DTB (RDTB) or the position marked with 8KOUT/ARM232 on the Rear Card of Multi-

service Network Interface Card (RMNIC). End B is plugging to the position marked with8KIN1 on the RCKG1.

END A ENDB

BOARD NAME RDTB (OR) RMNIC RCLKG1

PORT NAME 8KOUT/DEBUG-232 (OR)

8KOUT/ARM-232

8KIN1

6.2.6 RS 485 CABLE:

RS485 cable includes PWRD 485, and GPS 485 cable.

PWRD 485 cable

This cable connects the OMP board to the PWRD 485, in order to monitor the

environment of cabinet.

Both ends of the cable are 8P8C straight crimping shielded connectors.

End A is plugging to the position mark with PD 485 on the Rear Board of MP (RMPB)

board, and End B is plugging to the position mark with RS 485 on the back of power

distribution plug-in box.

ENDA ENDBBOARD NAME RMPB (REAR BOARD OFOMP)

POWER MODULE

PORT NAME PD 485 RS 485



20/38

GPS 485 cable

GPS 485 cable connects the OMP to GPS module.

Both ends of cable are 8P8C straight crimping shield connectors.

End A is plugging to the position mark with GPS 485 on the Rear Board of MP

(RMPB) board, and End B is plugging to the position mark with RS 485 on the

backplane of GCM plug-in box.

ENDA ENDB

BOARD NAME RMPB (REAR BOARD OF

OMP)

REAR BOARD OF GCM

PORT NAME GPS 485 RS 485

6.2.7 PDSN BSCB

BOARD NAME: RMNIC (REAR BOARD OF IPCF)

PORT NAME: FE1

6.2.8 BSCB- SERVER:

BOARD NAME: RMPB (REAR BOARD OF OMP)

PORT NAME: OMC2

6.2.9 CONNECTING CROSS-CABINET PWRD485 MONITORING CABLESystem is expands, BSC cabinet cannot accommodate all plug-in boxes, and one or

more BSC cabinets connecting the PWRD485 monitoring cables.

Open the back door of cabinet, Top of cabinet is PWRDB connector board. The board

has two PWRD 485 interfaces for connecting various cabinets.



21/38

X2

RS485

X4

RS485

X2

RS485

X4

RS485

X2

RS485

X4

RS485

OMP

Rack1 Rack2 Rackn

The monitoring cable is a common straight-through network cable.

NOTE:

RGIM is the rear board of SDTB.

RMPB is the rear board of OMP.RCLKG1, RCLKG2 are the rear boards of CLKG.

RMNIC is the rear board of IPCF

.



22/38

7. ZTE DDF:

7.1 DDF Mounting: FRONT VIEW



23/38

7.2 DDF MOUNTING: BACK VIEW

8. GPS CABLE INSTALLATION

8.1 MAKING PRIMARY FEEDER CABLE CONNECTORS:

GPS feeder made of a 9, 1/2" or 7/8" coaxial cable.

Before installing the feeder, cut a cable of appropriate length according to the site condition and make itsconnectors.

Perform following steps to make feeder connectors:

0 Stripping

Strip GPS feeder to expose 16.7 mm of shielding layer and then strip shieldinglayer to expose 6.2 mm of core.

6.2

16.7

Unit: mm



24/38



25/38

Put nut, crimping tube, and bush of GPS feeder connector on the cable, and then placepins of connector vertically on crimper.



26/38

3. Welding core:

Put solder wires into the pin and melt the solder wires with an electronic iron. Then,

insert cable cores into the welded solder wires, to finish welding of pins and cable

cores. Shielding layer of cable opened and covered on the bush.

1 4 65 7 8 932

1. Pin 2. Solder paste 3. Cable core 4.Insulation washer 5. Bush

6. Cable shielding 7. Crimping tube 8. Nut 9. Cable



27/38



28/38

8.2 GPS ANTENNA REQUIREMENTS

Install GPS antenna in open sky with wide view, to ensure that it can trace as manysatellites as possible. Do not install GPS antenna under microwave antenna, high-

voltage lines, and television-transmitting tower or within the radiation range of the

main lobe of a mobile system antenna.

GPS antenna is mounting on a tower or roof.

1. Tower mounted GPS antenna.

Install GPS antenna in lightning protection area at 45 on the lower part of tower, nomore than five meters above ground. Fix pole of GPS antenna at horizontal distance of 30

cm from tower.

8.3 GPS FEEDERS SPECIFICATION

Use feeders of different specifications depending upon the actual length of GPS

feeder.

1. Use 9 feeder if length of GPS feeder is less than 80 m.

2. Use 1/2" feeder if length of GPS feeder is less than 100 m.

3. Use 7/8" feeder if length of GPS feeder is more than 100 m.



29/38

8.4 LIGHTNING ARRESTER REQUIREMENTS

Install lightening arrester between the GPS antenna and BSC cabinet. Lighteningarrester consists of Two-ends.

One end is calls device and other ends antenna. The device end is connecting to the

N-type double-male conversion connector through BSC cabinet.

The other end antenna is connecting to the N-type double-female conversionconnector through GPS antenna.

8.5 GPS GROUNDING CONNECTOR:

The GPS grounding kit is connecting to the outdoor grounding copper busbar with the

grounding cable of six mm2.



30/38

9. MBTS:

9.1 INTRODUCTION:

In remote regions that need wide coverage and only have a small number of users, theapplication of high-capacity macro BTS cannot put the equipment into full play, and

furthermore, the equipment room environment in remote regions can hardly meet the

requirements of macro BTS. To satisfy the market needs, ZTE CORPORATION develops

ZXCBTS CDMA micro base transceiver station and remote station products.

MBTS:



31/38

9.2 Specification of the MBTS:

1. Dimensions of a single cabinet: The dimensions of the integrated equipment (height

width depth): 630mm 400mm 285mm.

The internal design capacity is about 580mm 396mm 200mm.

2. Weight of a single shelf: About 37kg.2. Weight of a single shelf: About 37kg.

3. 220V AC power, with a power supply range: 150VAC~300VAC;3. 220V AC power, with a power supply range: 150VAC~300VAC;

Power Consumption: 370WPower Consumption: 370W

4. -48V DC power, with a power4. -48V DC power, with a power

Supply range:-40VDC~-57VDCSupply range:-40VDC~-57VDC

Power Consumption: 370WPower Consumption: 370W

5.5. The grounding resistance of the shelf should be less than or equal to five ohms.

6. Operating temperature: -30C ~+55C;Storage temperature: -40C ~+75C;

1. Relative humidity: 5%~98%.

8. Requirement for the noise figure of a micro-BTS:

Noise figure of a micro-BTS: -55dB.

10. RBTS:

1. A ZXCBTS CDMA remote station does not have the TFS and BDS. To form a

ZXCBTS CDMA remote station, just replace the BDM with an RFM.

Clock for RBTS:

The clock of a remote station is optically transmitted to the RFM board of the remote

station via an OIM sub-board inserted on the BDM. The RFM board needs a phase lock

loop to convert the 16CHIP digital clock transmitted via fiber to the 12M analog signal,

in order to provide the RF part with a local oscillation signal.

11. POWER CABLE AND GROUNDING CABLE:



32/38

Grounding terminal No. Color of Core Power Polarity

1 Blue -48V

2 Red -48V

3 Black -48VGND

4 Yellowish green -48VGND

Power cables should be arranged in order. If the power cables are distributed in parallel

with E1 signal lines, a horizontal space of 200mm is required between them.

BOTTOM VIEW OF MBTS:

BOTTOM VIEW OF RBTS:


Power supply


33/38

GROUNDING FOR MBTS:

The PGND cable of the micro-BTS adopts the olivine or yellow copper-core cable with

the cross-section area of 16 mm2, which is connected to the indoor PGND copperbusbar reliably.



34/38

12. CONNECTION BETWEEN MBTS AND RBTS:

BDM BOARD OF MBTS:

One end of the fiber cable is connected to OIM Board in MBTS and anotherend is connected to RFM Board in RBTS.



35/38

RFS BOARD OF RBTS

13.BALUN CIRCUIT:

The Impedance of the MBTS is 75 ohm. The Impedance of the BSCB is 120

ohm.

Balun circuit is used to convert 75 ohm into 120 ohm. End A is connected to MBTS. End

B (RJ 45connector) is connected to ZTE DDF.


Towards DDF


36/38

E1 Cable:

We are using the RJ 45 Connector to connect the E1 cable from MBTS to DDF throughBALUN circuit. In RJ 45 connector,

1,2 - TX4,5 - Rx

This pair is one E1 cable.

14. DIP SWITCH:

Set the PATH ID by setting the DIPswitch on the BDM based on the E1 cable connections

with the CDSU of the BSC. Please refer the following diagram for setting the DIP switch.

PATH_ID12

PATH_ID2

PATH_ID3

PATH_ID0

4

ON

OFF

When PATH_ID=1, the DIP switch is set as:

When PATH_ID=5, the DIP switch is set as:

ON

OFF

ON

OFF

3

1

INDICATOR:

If E1 is through, HL3 Indicator in MBTS will be in off position.

HL3 YellowThe first E1

synchronization indicator

On: out of synchronization; off: synchronization

Off: Indicates the first E1 is connected.Off



37/38

15.ZTE ODF:



38/38

FC connector

AT BSCB end

SC connector

AT ODF end

Documents

Bscb-mbts Installation Documentation