NetNumen™U31R06HardwareInstallationGuide
11.2.3ConnectingCables(DCPower)
WhenthealarmboxusesaDCpowersupply,youcanusethe3-meter-longDCpower
cabledeliveredwiththealarmbox,orselectanotherequivalentcable.ForDCpowercable
parameterdescriptions,refertoTable11-1.
Table11-1DCPowerCableParameters
ParameterValueParameterValue
Nominalcross-sectionalarea1mm
2
Jacketthickness0.87mm
Outerdiameter1.3mmOuterdiameterofthe
jacket
6.94mm
Insulationlayerthickness0.65mmRatedvoltage300/500V
Outerdiameteroftheinsulation
layer
2.6mmMaximumtemperature
resistance
70℃
MaximumDCresistance(20℃)20Ω/km--
Note:
TheDCpowercableandnetworkcableshouldbecoveredbytrunkingandsecuredonthe
wall.Cablebendsshouldbesmooth.
Caution!
Donotstrainthecablesbecausethiscandamagethecables.
ThisproceduredescribeshowtoconnecttheDCpowercableandthenetworkcableto
thealarmbox.
Prerequisite
lThepowercableandastraight-throughnetworkcable(RJ-45connector)are
connectedandroutedproperly.
lAscrewdriverandcabletiesareready.
lEnsurethattheDCpowerisswitchedoff.
11-6
SJ-20141121113158-006|2014-12-20(R1.0)ZTEProprietaryandCondential