This variable indicates the Line Status of the interface. It contains loopback, failure, received 'alarm' and transmitted 'alarms information. If the zhloopbackState bit is set, the loopback in effect can be determined from the loopbackConfig object. The various bit positions are: noAlarm(1) No alarm present rcvFarEndLOF(2) Far end LOF (a.k.a., Yellow Alarm) xmtFarEndLOF(4) Near end sending LOF Indication rcvAIS(8) Far end sending AIS xmtAIS(16) Near end sending AIS lossOfFrame(32 Near end LOF (a.k.a., Red Alarm) lossOfSignal(64) Near end Loss Of Signal loopbackState(128) Near end is looped ts16AIS(256) E1 TS16 AIS rcvFarEndLOMF(512) Far End Sending TS16 LOMF xmtFarEndLOMF(1024) Near End Sending TS16 LOMF rcvTestCode(2048) Near End detects a test code otherFailure(4096) any line status not defined here unavailSigState(8192) Near End in Unavailable Signal State netEquipOOS(16384) Carrier Equipment Out of Service