Zte NetNumen U31 R06 - Chapter 6 Installation of External Power Cables and Grounding Cables

Chapter6
InstallationofExternal
PowerCablesandGrounding
Cables
Acabinetpowercableobtains-48V/-60VpowerfromaDCpowerdistributioncabinetor
DCpowersupply.Thenthepowerdistributionboxconvertsthe-48V/-60Vpowerinto
multi-wayDCoutputpowertosupplypowertothecomponentsinthecabinet.
Acabinetprotectivegroundingcableconnectsthegroundingpointsofmultiplecabinetsin
parallel,sothatthewholesetofequipmentbecomesanequipotentialbody.
TableofContents
PowerSupplySystemofaCabinet............................................................................
6-1
CablingRequirements................................................................................................6-3
InstallingPowerCablesandGroundingCables..........................................................6-7
6.1PowerSupplySystemofaCabinet
PowerSupplySystem
ThepowersupplysystemofacabinetconsistsoftheACpowersupplysubsystem,
DCpowersupplysubsystem,DCpowerdistributionsubsystem,andtheuniedPower
DistributionUnit(PDU).Forthe–48Vpowersupplysystemwithtwoareasoftripleinput,
seeFigure6-1.
6-1
SJ-20141121113158-006|2014-12-20(R1.0)ZTEProprietaryandCondential