61200.055L1-1C
DSX-1 Passthru Option Module
19
Appendix A. Passthru Failure Messages
Appendix A
Passthru Failure Messages
FAILURE MESSAGES AT PO WER-UP
The following messages indicate a probable component
failure on the Passthru Module:
EPROM CS
-
EPROM checksum error
RAM ERR
-
Static RAM error
PASSTHRU ALARM MESSAGES
The following messages indicate an alarm condition on
the Passthru Module:
Red Alarm
-
not able to frame data coming from
the DSX-1 interface; sometimes
referred to as out of frame (OOF)
Yellow Alarm
-
remote alarm indicator (RAI) being
received from the DSX-1 Interface
Blue Alarm
-
receiving unframed all 1s from the
DSX-1 interface, alarm indicator
signal (AIS)
Loss of Signal
-
no signal detected from the DSX-1
interface
