Juniper Networks Juniper M-series M10i - Manual (Page 37)

■ Alarm indication signal (AIS)
■ Equipment failure (does not affect service)
■ Frame error
■ Line code violation
■ Loss of signal (LOS)
■ Out of frame (OOF)
■ Yellow alarm bit (A-bit) disagreements
Alarms, errors, and
events
E3 PIC ■ 37
E3 PIC