Redline AN-30 System User Manual page 17

The LEDs are able to report multiple alarm conditions as shown in the following table:
LOS = Loss of Signal
LFA = Loss of Frame Alignment
AIS = Alarm Indication Signal
RAI = Remote Alarm Indication
Redline Communications
Alarm LED
ALARM
(Amber)
AIS + LFA Off
AIS + RAI Flashes
RAI + LFA Flashes
Page 17 of 80
AN-30 System User Manual
Sync LED
(Green)
Blink
Off
Flashes
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