Appendix D. System Messages

DSX-1 (PBX) Interface

The following messages indicate a condition on the Base DSX-1 (PBX) interface:

Red Alarm

Not able to frame data coming to the DSX-1

 

interface; sometimes referred to as out-of-

 

frame (OOF)

Yellow Alarm

Remote alarm indicator (RAI) being

 

received by the DSX-1 interface

Blue Alarm

Receiving unframed all 1s at the DSX-1

 

interface [alarm indicator signal (AIS)]

Loss of Signal

No signal detected by the DSX-1 interface

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

TR-08 DL Down*

TR-08 data link is down

TR-08 DL Up*

TR-08 data link is up

Minor Alarm*

Loss of sync, carrier los, BPV threshold

 

exceded, or data link failure

Major Alarm*

Conditions for a minor alarm have contin-

 

ued for greater than 2.5 seconds

TR-08 alarm messages appearing in the alarm or history log have been received from the far end. If the NI detects one of the aove conditions, it will send the appropriate alarm (if enabled) to the far end but no message will ap- pear in the alarm or history log.

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ADTRAN TSU 120e user manual Status Messages, DSX-1 PBX Interface