Zte ZXMW NR8250 - Page 60

ZXMWNR8250AlarmandNoticationHandlingReference
lAlarmLevel:Critical
lAlarmType:CommunicationsAlarm
Sub-codeDescription
lSub-code1:Themodulationanddemodulationpartisunlocked;
lSub-code2:TheCPUrunningissuspendedinmodulationanddemodulation;
lSub-code3:TheprotectionfunctioninitializationfortheRMUboardfails.
EffectontheSystem
lForsubcode1:
1.Innon-protectionmode,thetrafcisinterrupted.
2.Inprotectionmode,ifboththeactiveandstandbytrafcunitsareunlocked,the
trafcisinterrupted;otherwise,theactive/standbychangeoverisperformed.
lForsubcode2:
1.Innon-protectionmode,thetrafcisinterrupted.
2.Inprotectionmode,ifboththeactiveandstandbytrafcunitsaresuspended,the
trafcisinterrupted;otherwise,theactive/standbychangeoverisperformed,and
theserviceisnotaffected.
lForsubcode3:
Thereceive-endprotectionfunctionthatRMUisconguredwithdoesnottakeeffect,
thustheprotectioncannotbeimplemented.
PossibleCauses
1.Thecongurationsatbothendsareincorrect.
2.Thelocaltransceiverandtheremotetransceiverarefaulty.
3.TheNR8250shelfatthelocalendisfaulty.
HandlingProcedure
1.CheckwhetherthecongurationsatthetwoendsincludingODUfrequency,
modulationmodes,andbandwidthareconsistent.
lIfyes,gotostep2.
lIfno,itindicatesthatthecongurationisincorrect.Issuethedataagain.
2.Checkwhetherthelocalendreportstheunlockalarm(alarmcode:134239928).
lIfyes,replacetheRMUboardatthelocalend.
lIfno,gotostep3.
3.Checkwhethertheremoteendreportstheunlockalarm(alarmcode:134239928).If
yes,replacetheRMUboard.
4.Whenthealarmofsub-code3isreported,coldstarttheactiveandstandbyRMU
boards.Ifthealarmpersists,gotostep5.
5.ReplacetheactiveandslaveRMUboardsthatreportthealarm.Ifthealarmpersists,
replacetheN8250shelfatthelocalend.
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SJ-20111008094748-008|2012–05–30(R1.1)ZTEProprietaryandCondential