Zte ZXA10 C300 - Page 97

AppendixBGroundingNetworkRequirements
lLaytheincominglowvoltagepowercablesundergroundatadepthofmorethan15
meters.
lLaysignalcablesinthemiddleofthebuilding.Forverticalwiring,trytokeepthe
cableatleast5mawayfromthepolesofthebuilding(especiallythepolesatthefour
corners).
lProtecttheunshieldedcableswithmetaltubes.Keepthecablesintheequipment
roomawayfromthelightningprotectionpole.
lInstallthelightningprotectionSPDnearthecableinletoftheequipmentroom.
ConnectthegroundingcableofthelightningprotectionSPDseparatelyfromthe
groundingbar.
lLay-48Vpowercable,-48Vgroundingcable,andprotectiongroundingcablein
parallelintheequipmentroom.Laythemwiththesignalcables(includingusercables)
inverticaldirection.
lIftheroomfortheaccessequipmentisadjacenttotheroomforthemobileequipment,
arrangethegroundingcablesintheaccessequipmentroomseparatelyfromthe
groundingcablesofthemobiletower.
lDonotlaytheACpowercableoftheremoteunitandremotemodulesinparallelnear
thesignalcables(includingusercables)and-48Vpowercables.
B-3
SJ-20110909101511-005|2011-12-31(R1.1)ZTEProprietaryandCondential