Zte ZXR10 5900E Series - Page 14

ZXR105900ESeriesRoutineMaintenance
OperationClassOperationTypePossibleResult
Riskyoperations
relatedtofans
Itisprohibitedtoplugoutthesystem
fanmoduleswithoutguidancefromthe
professionalpersonnelwhenthesystemis
workingproperly.
Ifafanmoduleispluggedoutandtheperiod
islong,theboardtemperaturemaybetoo
highandthechipmaybedamaged,which
causesafault.
Onlytheprofessionalpersonnelcanclean
thefanmodulesorchangeafanmodulein
accordancewithrelatedoperationalstatuses
duringyearlyroutinecheckorwhenafan
moduleisdamaged.Theoperationaltime
shouldnotbetoolong.
Riskyoperations
relatedtoboards
Itisprohibitedtoplugoutorpluginaboard
withoutwearingantistaticwriststraps.
Staticelectricityproducedbyhumanbodyis
harmfultotheelectroncomponentsonthe
boards.Ifyoudonotweartheantistaticwrist
straps,theboardmaybedamagedbystatic
electricity,whichmakestheboardsnotwork
properly.
Riskyoperations
relatedtocables
Itisprohibitedtopluginorplugoutanetwork
cableonanMPUwithoutguidancefromthe
professionalpersonnel.
Whenaequipmentismanagedthrough
anout-bandnetworkmanagementsystem,
usuallythenetworkcablepluggedinthe
MGMTportontheMPUisconnectedtothe
backgroundnetworkmanagementsystem.If
thenetworkcableispluggedout,thenetwork
managementservermayfailtomonitorthe
equipmentanditwillsendanalarm.This
bringsahiddentroubleforstableoperation
oftheequipment.
RiskyOperationsRelatedtoCommands
Duringroutinemaintenance,somecommandoperationsareriskyandneedtobeavoided
aslistedinTable2-2.
Table2-2RiskyOperationListRelatedtoCommands
OperationClassicationCommandCommandFunctionPossibleResult
ResettingreloadResettingtherackOnlyprofessionaland
trainedpersonnelcan
congurethiscommand
whenupgradingthe
equipmentorhandlinga
seriousfault.Oncethis
commandiscongured,all
serviceswillbeinterrupted
2-2
SJ-20150114102049-013|2015-01-15(R1.0)ZTEProprietaryandCondential