Lucent Technologies MERLIN LEGEND Release 5.0 Maintenance And Troubleshooting Manual page 237

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting 555-650-140
Central Office Problems
Trunk Errors
After four occurrences, the trunk is put into a maintenance-busy state
and a permanent error is logged.
The CO fails to disconnect when the GS trunk is dropped by the system.
After two occurrences, the trunk is put into a maintenance-busy state and
a permanent error is logged.
Loop-Start (LS) Trunk
No loop current exists when the LS trunk is seized. The port is marked
maintenance-busy , and a permanent error is logged after four occurrences.
Tie Trunk
The following events cause maintenance-busy on a tie trunk.
A seizure of an outgoing tie trunk fails.
A transient error is reported. After four unsuccessful seizure attempts,
the port is marked maintenance-busy and the error becomes permanent.
The CO fails to disconnect.
A transient error is reported. After two occurrences, the port is marked
maintenance-busy and the error becomes permanent.
NOTE:
The test is not run on auto-out tie trunks.
Maintenance-Busy Programming
You can select
there is also a menu selection to include tie trunks.
Maintenance-Busy
as a system programming option. If you do,
Issue 1
June 1997
Page 5-7