E1/T1 Alarm Indication Signal

E1/T1 Alarm Indication Signal

This is a Traffic hampering alarm

This alarm is reported when the all 1s signal (Alarm Indication Signal, abbreviated as AIS) is detected on the E1/T1 RX port.

Main Reasons for this alarm

?The E1/T1 link is incorrectly configured.

?The E1/T1 transmission link is faulty.

?The local device is faulty.

?The peer device is faulty.

Cables, Connectors and TX devices also need to check.

Thanks for this short note

Good Document