Chapter2Alarm
lAlarmLevel:Major
lAlarmType:CommunicationsAlarm
Sub-codeDescription
lSub-code1:Opticalport1ontheRTUBboard;
lSub-code2:Opticalport2ontheRTUBboard.
EffectontheSystem
ThereceivesignaltransmittedontheSDHlinkisinterrupted.
PossibleCauses
1.TheregeneratorsectiontraceidenticationJ0isincorrect.TheactualJ0valueis
inconsistentwiththepresetvalue.
2.TheRTUBboardthatreportsthealarmisfaulty.
HandlingProcedure
1.EnsurethatthepresettraceidenticationofVC-4channel(J0)oftheNR8250
upstreamequipmentis-ZTE-MW-NR8250-.
lIfyes,gotostep2.
lIfno,modifythetraceidenticationofVC-4channel(J0)-ZTE-MW-NR8250-.
2.ThealarmiscausedbyRTUBboardfailure.Replacetheboard.
2.2.26134237934E1-AIS
AlarmProperty
lAlarmCode:134237934
lAlarmInformation:
Thealarmindicatesthateverybitofthedigitalsignalis"1".
Thealarmisreportedifatleast255consecutivebitsinthereceivedsignalis"1".
lAlarmLevel:Critical
lAlarmType:CommunicationsAlarm
Sub-codeDescription
lSub-code1:E1port1onthepanel;
lSub-code2:E1port2onthepanel;
lSub-code3:E1port3onthepanel;
lSub-code4:E1port4onthepanel;
lSub-code5:E1port5onthepanel;
lSub-code6:E1port6onthepanel;
lSub-code7:E1port7onthepanel;
lSub-code8:E1port8onthepanel;
2-43
SJ-20111008094748-008|2012–05–30(R1.1)ZTEProprietaryandCondential