Cabling StandardsCabling Standards

IndoorIndoor

Indoor cablingIndoor cabling

Jumper cablingJumper cabling

Power cablingPower cabling

Grounding CableGrounding Cable

IP transmission cableIP transmission cable

Installing Grounding For BTS 3900Installing Grounding For BTS 3900

NodeB grounding point

All the grounding should be Terminated on the grounding Bus bar

NodeBTriplexerPower systemTransmission Rack

Make sure grounding for

Power cable installation for BTS3900

Power cable routed to DCDUwe use 16mm square cableBlue cable to –ve terminalBlack to +ve terminal

Power cable should be termimated with Lugs in power systemPower cables should be neatly labelled with Ring labels

IP transmission cable

IP TXN cable from WMPTWill be connected toEMS6 Board in RTN

FE transmission Cable Routing Standard

FE0 port in WMPT

FE1 port in EMS6

WRFU Topology

WRFU ports

Wrong style of IP transmission cable routing

Jumper cabling

Jumper cables should be cut as per Exact length requiredThere should be any extra loop forJumper Should be groomed properly with tiesJumper should be routed through cable tray

Triplexer installation on Indoor Cable ladder Triplexer installation on Indoor Cable ladder

Desired way for installing Triplexer

Should use C clamps for Fixing the Triplexer on the indoor cable ladderThe Steel ties normally coming in packing along with Triplexer is not allowed to use in the indoor.All the triplexers should be grounded to Main Bus bar.

Triplexer fixed with Steel ties on indoor ladder not accepted.Steel ties can easily cause injury and also makes maintanence a difficult task

Sample Scenario

The power cable and jumper cable shouldn’tCross each other.Power cable should have minimum 3cm gapBetween power cable .IF cable and IP cableJumper should not have sharp bends

Connector preparationThere should not be any sharpBend as seen in picture at the Connector will degrade Signal quality

Every connector should be fixed with heat shrinktube

Common snags found In North Emirates project

Power and jumper cable cross

Power and IF cable cross

Should make sure that after installation that the cables are all labeled properlyCabinet label should be pasted.Power cables should be terminated properly at rectifier and cabinetMake Sure no crossing between power cable and Data cables.Make sure all the RF connectors are tight and no swap in connectionsAll cables should be neatly groomed using ties.Remember to use only one color tie in Indoor.

Final Check

Thank youThank you