Appendix A. System Messages - ADTRAN DUAL Nx56/64 1200142L1# User Manual

Appendix A
ALARM MESSAGES
Network Interface (NI)
61200142L1-1
System Messages
Red Alarm
NI unable to align frame with incoming signal
Yellow Alarm
Remote alarm indication (RAI) being received from the
far end
Blue Alarm
Unframed all 1s (AIS) being received at NI
Loss of Signal
No signal detected at NI
Dual Nx56/64 Option Module User Manual A-1