ZXSDR BS8800 Installation Criterion

Prepared by-Rajesh K Gaurav

秘密▲BTS installation Position

Front aligned of the BTS Must be done with the adjacent rack

Correct alignment incorrect alignment The vertical deviation of the cabinets shall not exceed 1‰ of the cabinet

height. The front side of the same row of cabinets shall be on the same surface, with a

deviation not more than 5mm allowed. The first cabinets of all the rows shall also be on the same surface, with a

deviation not more than 5mm allowed.

秘密▲Procedure for BTS Grouting

Select the installation position as per the design documents.Minimum required gap with the adjacent rack should be 100mm.

Do marking with the marking template.

Use drill machine to make holes for expansion bolts. Fix the fasteners and then fix the base with insulation pad.

秘密▲

Expansion bolts must be installed properly. Washers must be installed in correct order

i.e. Insulation washer >Flat washer>Spring

washer>Nut

Fix the cabinet.

秘密▲Check vertical and horizontal leveling errors. The front side of the same row of cabinets shall be on the

same surface, with a deviation not more than 5mm allowed. The first cabinets of all the rows shall also be on the same surface, with a deviation not more than 5mm allowed.

秘密▲Installation of cards

Fig 1- Insert the RSU cards Fig 2- Insert the Dummy cards

Fig 3- Do the power cable connections Fig 4- connect monitoring cable

Precaution -Wear ESD Wrist

strip while installation of

cards

秘密▲Internal Cable routing and connections

UBPG

Reserved for

expansion

Keep all cards in the positions as shown below

1st Sec 2nd

Sec

3rd

Sec

秘密▲Prepare lugs

Lug

Core cable

Crimping tool

秘密▲Power cable installation-

The cross sectional areas of the power cables and the ground cables shall comply with the product installation requirements. The cross sectional area of the ground cables shall be at least 35 mm2 and they shall be connected reliably to the indoor ground copper bar. Those of the -48V GND power cable and the -48V power cable shall be at least 25mm2 and they shall be laid straight and connected reliably.

The -48V power cable shall be blue, the -48V GND power cable shall be black, and the ground cable shall be yellow-green.

秘密▲Power cable routing Use white ties at regular intervals

Extra power cable length should not be coiled must be cut

秘密▲Power Cable termination

*Blue Power cable must be terminated to the -48 V.

MCB should be labeled

Maximum two lugs are allowed to terminate at a single terminating point according to the below figures

秘密▲Cable routing at BTS

Ties must be used to fix Jumper cables at BTS end All the jumpers must be routed straightly the bending

radius should not exceed

Hot shrink sleeves must be installed

秘密▲Power cable & Jumper cable routing

White ties must be used at regular intervals

All cables must be routed vertically at BTS. Power cables should be separately routed from

E-1 and signal cables.

秘密▲Antenna & Feeder Installation

秘密▲Antenna installation- Check antenna

mounts are fixed properly using 2 nuts.

2

1

4

3

5

秘密▲ Assemble the antenna clamps. Connect antenna jumpers to the antenna ports. Do the weather proofing of ports.

Weather proofing process-1- Wrap three layer of insulation tape on connector :2- Wrap three layers of water-proof daub.3- Finally, wrap three layer of insulation tape again. Wrapping requirement: Wrap one layer from bottom

upward, one layer from top to bottom, and finally one layer from bottom upward. When wrapping the tape or daub, make sure that the upper layer covers 1/3 of the lower layer. The daub must be stretched to 50%. The tape must be wrapped smoothly.

秘密▲Mounting of Antenna & Feeder

Pulley block

Feeder headbandage

Label

T ie the pull-up rope0.4m and 3.4m away

from the feederPull the feeder away fromthe iron tower with thisrope to avoid damage tothe feeder or feeder head

Pull-up rope

Process for antenna & feeder mounting

秘密▲ Fix the antenna. The azimuth and tilt angle of the installed

antenna must accord with design specifications

Note- maximum interval between two feeder clamps should not increase more than 1~1.5 meters.

The antennas shall be installed below the lightning rod and within its protective range. The protective angle in the plains shall not be more than 45° and in the mountains not more than 30°.

Jumper must be routed 300mm straight at the connectors. Bending radius should not be less than 20times of the feeder diameter.

秘密▲Feeder installation

1. Distance between two clamps should be 1~1.5 meter.

3. Feeder bending should be smooth & radius shouldn’t be less than 20d (d=diameter of feeder).2. Water drip arch must be given at

the feeder window

4. Feeder window must be seal to avoid water inside the shelter

秘密▲Grounding Clip installation If the length of a feeder ≤ 20m, then ground it at two points, one within 2m from the

antenna feeder connector and the other that is near the outdoor feeder window and connected to the outdoor ground bar;

If 20m < its length ≤ 60m, add a ground point with 2m from the point where it leaves the iron tower or the rooftop;

If its length >60m, it is required to add one more ground point for every 20 more meters.

Fig-1 Grounding near feeder connector & antenna jumper

Fig-2 Feeder grounding at tower ladder

Fig-2 Grounding at EGB

秘密▲Standard Grounding

秘密▲Connections & labeling of Feeder

秘密▲Surge Arrester installation & grounding

Surge arrester stand must be fixed properly at the cable tray

Grounding cable of the surge arrester stand must be connected to the EGB.

秘密▲Labeling

Power cable (remote)

Equipment name

POWER CABLE ( R )

ZXDU 300 GND

POWER CABLE ( L )

BTSGND

Power ground

Power cable (local)

Equipment name Power ground

All equipments & cables must be labeled for identification and easy maintenance.

‘R’ marked on labels is short for ‘Remote’. Generally, it is on the left of the label. ‘L’ is for ‘Local’ and usually on the right of the label.

The labels of cable are filled in and stuck correctly and reliably. They must be tidy position and same direction. They must be stuck on a position 2 cm away from their connectors. They can be made in a uniform way according to customer requirement.

秘密▲BTS label structure

EGB Labels Labels of Top BTS

Labels Power cablesLabels of E-1 & Alarm cables

Black cable0V

Blue cable-48V

Yellow greenPGND

秘密▲

Feeder & Jumper cable labels must have minimum 200mm distance from their connector.

Feeder & Jumper Labels

200mm200mm