The meanings of possible values of the dsx1LineStatus MIB object are:


No alarm present

Far end sending LOF (Yellow Alarm)
4
Near end sending LOF
8
Far end sending AIS
16
Near end sending AIS
32
Near end LOF (Red Alarm)
64
Near end loss of signal
128
Near end is looped
256
E1 TS16 AIS
512
Far End sending TS16 LOMF
1024
Near End sending TS16 LOMF
2048
Near End detects a test code
4096
Any other line status
If the dsx1LoopbackState bit is set, the loopback in effect can be determined from the dsx1LoopbackConfig object.