Zte ZXMW NR8120D - Page 28

ZXMWNR8120A/8120DMaintenanceGuide
Figure3-1RadioLinkLoopbackSettingPane
3.SelectLoopbackEnableforthecorrespondingloopbackitemssuchasMFLoopback
andIFLoopback,enterthecorrespondingLoopbackTime,clicktheApplybutton,
andverifythattheBitErrorRate(BER)iszero.
lIftheBERiszero,theE1servicebetweenthelocalerrorbittesterandthelocal
RCMUC/RMEAisnormal.
lIftheBERisnotzero,theE1servicebetweenthelocalerrorbittesterandthe
localRCMUC/RMEAisabnormal,andthefaultexistsbetweenthelocalerrorbit
testerandthelocalRCMUC/RMEA.
TDMLoopback
ThefollowingdescribestheTDMloopbacktestprocedure:
1.Connecttheequipmenttoanerrorbittester.
2.LogintotheWEBLMTsystem,Intheleftnavigationtree,selectTDM>Port
Conguration,andsetthePortStatusofthecorrespondingporttoPortEnable.
3.Intheleftnavigationtree,selectMaintenance>TDMPortLoopback.TheTDM
loopbacksettingpaneisdisplayedontheright,seeFigure3-2.
3-2
SJ-20150804150350-006|2015-09-17(R1.0)ZTEProprietaryandCondential