Chapter2
RiskyOperationsDuring
RoutineMaintenance
NotesforRiskyOperationsDuringRoutineMaintenance
Riskyoperationsreferstotheoperationsthatmaycausepersonalinjury,accidents,
equipmentdamageorserviceinterruption.
Caution!
Onlythequaliedandprofessionallytrainedpersonnelcandotheriskyoperations.Before
theoperations,itisnecessarytoconsidertheworstsituationsthatmayappearandmake
solutionsforsuddenevents.
RiskyOperationsRelatedHardware
Duringroutinemaintenance,somehardwareoperationsarerisky,aslistedinT able2-1.
Table2-1RiskyOperationListRelatedtoHardware
OperationClassOperationTypePossibleResult
ItisprohibitedtoplugoutorplugintheAC
powersupplylterofZXR105900Ewithpower
on.
IftheACpowersupplylterispluggedinor
pluggedoutwhentheequipmentisworking,
therewillbeaequipmentexceptionandthe
serviceswillbeinterrupted.
IftheZXR105900EACpowersupplymodule
isdamaged,chooseanappropriatetimeto
handlethefault.Theltershouldbepowered
offwhilehandlingthedamage.
Riskyoperations
relatedpower
supplies
Withoutprofessionalguidance,itisprohibited
tooperatethevariousairswitches,including
theswitchesontheequipmentpowersupply
module,inthedistributionboxinthecabinet,
andinthedistributioncabinet.
Onlytheprofessionalpersonnelcanoperate
variouspowersuppliesinaccordancewith
relatedstatusesduringupgrading,service
handover,capacityextendingorseriousfaults.
Thisresultneedtobegivenrst,thenhandling
instructions.
2-1
SJ-20150114102049-013|2015-01-15(R1.0)ZTEProprietaryandCondential