Guide Book For Hardware Installation Quality.ppt

Guide Book For Hardware Installation QualityEngineering service department2009-7-9

Guide Book For Hardware Installation QualityCabinet Installation & internal routingIndoor Installation & Cable layingOutdoor Installation & Cable layingIGB and EGB InstallationCable label StandardOther Problem

Cabinet Installation & internal routingIndoor Installation & Cable layingOutdoor Installation & Cable layingIGB and EGB InstallationCable label StandardOther Problem

Cabinet InstallationInsulating pad must be installed & fixed the cabinet base with bolt firmly; Check the level of the base, from the base of the four areas checked.

Insulating pad isnt fixed

BTS must be fixed on the foundation firmly;Flat and spring washer must be used;spring washer must be placed between flat washer and nut.

Cabinet isnt fixed firmly; (Serious problem) Indoor BTSOutdoor BTS

Cabinet rack should not have a vertical deviation exceeding 1 of its height;

The racks, doors and top baffles should not be seriously damaged or deformed, without scratch or paint peeling off;RightWith scratch

The cables in front of the cabinet must be routed neatly.

The PGND cable of the door should be connected firmly;The direction of PGND must according to the photo, and the door can open & close easily.

Each front panel of a rack should be equipped with one antistatic wrist strapWear the antistatic wrist strap when plugging/unplugging the boards

The dummy handle bars and dummy panels shall all be installed.


The power cable, signal cable, and ground cable should be bundled and laid separately;Redundant cables must be fixed firmly and neatly on the rack;All of the cables must be whole section without joints midway.

The wiring should be level horizontally or straight vertically without across.The minimum bending radius of a feeder should not be smaller than 20 times the radius of this feeder.

For Sharing Site, if theres no enough place to route, GND & PGND cable tied with other cables is permitted.Measure the length of cables & design the routing before route can make the cables neatly.

Indoor cables must use white strap to bind, Outdoor cables must use black strap to bind;When the straps are tightened, the excessive part should be cut off leaving no burr;When the strapped cables are laid, the strap end should be applied in the same direction for cables in the same direction;The straps used to tie cables should be tightened with proper force.

Surge Arrester stand must be cut 4cm from the bottom end, so that it can be easily fixed into the place between Cable Tray and Shelter Top.Surge Arrester stand must be insulated with cable tray.

The length of E1 must be properly and routing neatly;DDF Box grounding cable should be connected to IGB.

Redundant fiber must be coiled in the fiber tail box or fixed after coiling. And the fiber tail should be covered with protective tube.

Power cable and Power alarm cable must be fixed in the right bolts firmly;Rack-top Power box must be installed and sealed properly.Power Alarm Cable

Must fixed the power cables firmly and insulated tape is needed;All the electrodes must be correctly

PGND of battery must be connected to IGB separately;Temperature sensor must be fixed properly and firmly on the battery;

PGND connect together & dont connect to IGBNo temperature sensors

Routing of AC cables from DG to PIU & PIU to City Electricity Board must be protected by GI Pipe under the earth & Flexi Pipe outside the ground;After connection , GI Pipe ,Flexi pipe & shelter hole should be properly sealed.

Indoor equipments and cable tray must be connected to IGB separately;Cable tray must be connected together by grounding cable.


Must make the joint between antenna and jumper better;At the joint between jumper and antenna, 30cm jumper should be kept straight with the antenna.

Feeder grounding clip must be connected to EGB before leave the tower;The grounding cable that come from feeder grounding clip must point to the equipment.

Installing the feeder grounding clip, the grounding cable that come from clip must point to the BTS, because the lightning come from the aspect of antenna and flow to the EGB.

Outdoor cable tray must be connected together by grounding cable;Outdoor cable tray needs to be connected to EGB.

Outdoor equipment, cable tray and feeder must be connected to EGB;EGB must be connected to Grounding System.

Feeder grounding clip installation standard: First wrap the insulating tape 3 layers insideHow to make Proper taping of Feeder grounding clip

second wrap the waterproof adhesive tape 3 layers middle, and then wrap the insulating tape 3 layers outside;

the end, bundle black tie at both ends;

To install a feeder window on the roof of a building to lead in a feeder, the feeder window should be sealed properly.

A waterproof arch shall be made before antenna feeder goes into the shelter and at the fixed position of the outdoor jumper.


Copper lugs should be used according to the core diameters and bolt diameters;A flat washer and spring washer should be used with a bolt when a copper lug is fixed, and the spring washer should be placed between the flat washer and the nut;IGB & EGB must be connected to grounding system separately.


Print out the labels or written neatly on the labels;Cover label surface by transparent tapes;Cut the edge of the label with a blade, and then can remove the labels easily.

Each terminal of power cable, grounding cable, signal cable, and IF cable should be marked with one label;Labels shall be pasted in consistent direction, and the side indicating the cable direction shall be upturned or face the maintenance side, which is easy to read;

A label should be written neatly and printed out. If circumstances do not permit, technical lettering should be applied. The content format should conform to product specifications, and indicate local and remote positions, which should not be marked simply with numerals.


Every vendor team must have complete tools for installation.

Feeder connector knifeMulti-meterelectric percussion drillmulti-functional crimping plierVSWR testeranxiliary drill bitsCross screwdriverhack sawvacuum cleanerFlathead screwdriverCompassshape-nose pliersHammerRulerdiagonal pliersdual-purpose spannerPliershydraulic crimperadjustable wrenchesassorted filesHot blower

The cabinets shall not be used to store sundries such as tools or spare parts. There shall be no redundant or waste engineering materials such as cable ties or bolts inside the cabinets.Project materials must be cleaned

The equipment room shall be clean and orderly, wastes such as packing boxes shall be removed, and project materials should be taken back and reused.Project materials must be cleaned

Sketch Map of Connection of TMA

Grounding System & TMA Installation

Precautions of Tower Top Amplifier InstallationGenerally, TMA is not within full 890MHz-960MHz band. Hence it should be tested separately as uplink and downlink frequency band when testing standing wave ratio after installation;The installation position of offset T connector must be closer to antenna than that of lightning arrestor; otherwise it will result in CDU fuse blowout.

Guide Book For Hardware Installation Quality.ppt

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