Table B-1. Alarm Conditions - ADTRAN TSU 610 User Manual

Appendix B. Understanding TR-08
Name
FELP
Loss of Data
OOF
Loss of Signal
BPVs
Protection Line
Switch
B-2
When the TSU 610 receives a FELP alarm, it will loop
the incoming data directly to the outgoing data.
LINE ON is placed in history. The alarms and loop-
back are cleared when FELP is no longer received.
The TSU 610 will send
for 2.5s when it quits receiving the data link on
Alarm
the T-Span. It will also report TR-08 DL Down in the
history. After 2.5s,
are sent across the
The TSU will send
upon receiving an out-of-frame condition. TR-08 DL
Down and
Red Alarm
vere framing errors. After 2.5s,
are sent across the
A Shelf Alarm
The TSU 610 will send
for 2.5s when it stops receiving a signal from
Alarm
the far end. It will also report TR-08 DL Down and
LOS in the history. After 2.5s,
are sent across the
A Shelf Alarm
is declared in history.
Alarm
BPVs that are received at a rate greater than the
threshold set under TR-08 options, will cause
and
Alarm A Shelf Alarm
BPVs remain above the threshold for 2.5s, the TSU
610 will send
Major Alarm
placed in history.
The TSU will not respond to this alarm.
TSU 610 User Manual

Table B-1. Alarm Conditions

Explanation
Minor Alarm
, and
Major Alarm
.
Data Link
and
Minor Alarm
are declared in history for se-
Major Alarm
Data Link
Minor Alarm
Major Alarm
Data Link
to be sent on the DL. If the
on the DL. No events are
and the
A Shelf
A Shelf Alarm
A Shelf Alarm
and
.
and the
A Shelf
and
, and
Red
Minor
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