Appendix d tsu 600 system messages – ADTRAN TSU 600 User Manual
Page 127
Appendix D. TSU 600 System Messages
61200.076L1-1
TSU 600 User Manual
115
Appendix D
TSU 600 System Messages
This appendix lists and defines the alarm and status
messages that appear on the TSU screen.
ALARM MESSAGES: Network Interface (NI)
Red Alarm
NI unable to frame align with
incoming signal
Yellow Alarm
Remote alarm indication (RAI)
being received from far end
Blue Alarm
Unframed all ones (1s) (AIS)
being
received at NI
Loss of Signal
No signal detected at NI
STATUS MESSAGES: Network Interface (NI)
Payload On
Payload loopback activated
Line On
Loopback off
Loopback Off
All loopbacks deactivated
Factory Restore
Factory setting restored
Power On
Unit powered on
Self Test
Internal self-test performed
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