Zte ZXMW NR8250 - 134237745 Ms-Ais

Chapter2Alarm
Sub-codeDescription
Eachsubcoderepresentsatimeslot.Theformer63timeslotsareusedforopticalport
1,andthelatter63timeslotsareusedforopticalport2.
EffectontheSystem
ThesignaltransmittedontheSDHlinkisinterrupted.
PossibleCauses
1.Thereceiveunitofupstreamsignalsourceequipmentdetectsinvalidsignals.For
example,thesignalscontaintheTU-AISalarm.
2.ThesignalsentfromtheupstreamequipmenttoNR8250equipmentcontainsthe
LP-RDIinformation.
3.TheRTUBboardthatreportsthealarmisfaulty.
HandlingProcedure
1.CheckwhetherNR8250upstreamequipmentreportsalarmssuchasTU-AIS.
lIfyes,handlethealarmbyreferringtotheTU-AISalarmoftheNR8250
equipment.
lIfno,gotostep2.
2.EnsurethatthesignalssentbyupstreamequipmenttoNR8250equipmentdonot
containtheTU-RDIsignal.
3.ThealarmiscausedbyRTUBboardfailure.Replacetheboard.
2.2.12134237745MS-AIS
AlarmProperty
lAlarmCode:134237745
lAlarmInformation:MSAlarmIndicationSignal(MS-AIS)alarm.Thealarmisreported
ifK2[6-8]inmorethanthreeconsecutiveframesis111.
lAlarmLevel:Major
lAlarmType:CommunicationsAlarm
Sub-codeDescription
lSub-code1:Opticalport1ontheRTUBboard;
lSub-code2:Opticalport2ontheRTUBboard.
EffectontheSystem
ThereceivesignaltransmittedontheSDHlinkisinterrupted.
2-33
SJ-20111008094748-008|2012–05–30(R1.1)ZTEProprietaryandCondential