ZXR105900ESeriesRoutineMaintenance
Table3-1DeviceOperationEnvironmentRequirementsonZXR105900E
MaintenanceItemsReferenceStandard
TemperatureintheequipmentroomlThetemperatureoftheworkingenvironment:23℉
(-5℃)-113℉(45℃)
lThetemperatureofthestoreenvironment:-40℉
(-40℃)-158℉(70℃)
Ifthetemperaturesdonotmeettherequirements,check
whethertheair-conditionsintheequipmentroomare
workingproperly.
HumidityintheequipmentroomlThehumidityoftheworkingenvironment:5%-95%
lThehumidityofthestoreenvironment:5%-99%
Ifthehumidityistoolow,considertoinstallhumidiers.
Ifthehumidityistoohigh,considertoinstalldehumidier.
3.Thedustproofstatusoftheequipmentroomisingoodcondition.Ifallthingsinare
cleanandthereisnodust,thedustproofstatusisingoodcondition.Otherwise,the
dustproofstatusisnotingoodcondition.
3.2CheckingthePowerSupplyintheEquipmentRoom
Purpose
Thistopicdescribeshowtocheckthepowersupplyintheequipmentroomtoensure
thattheACandDCpowersupplyequipmentintheequipmentroomcansupplyproper
operationvoltages.
Steps
1.Checkthepowersupplyequipmentintheequipmentroomandobservethedisplayed
DCworkingvoltage,andmakearecord.
2.Checkthepowersupplyequipmentintheequipmentroomandobservethedisplayed
ACworkingvoltage,andmakearecord.
ReferenceStandards
lThestandardDCworkingvoltage:-48V,allowedvariationrange:-57V--40V.
lACworkingvoltage:220V±22V,50Hz±2.5Hz.
3.3CheckingtheCabinetEnvironment
Purpose
Thistopicdescribeshowtocheckthecabinetenvironmenttoensurethattheserialport
cablesandtheantistaticringhandlesareinstalled.
3-2
SJ-20150114102049-013|2015-01-15(R1.0)ZTEProprietaryandCondential