............................................................................................................................................................
5
Is the
excessive holdover mode active
condition still present?
If...
Then...
Yes
Continue with
No
Proceed to
............................................................................................................................................................
6
From the System View menu, select
View
→
Timing/Sync
.
Result:
The View Timing/Sync window opens.
............................................................................................................................................................
7
Is Synchronization Autoreconfiguration enabled and Mode Switching
revertive?
If...
Then...
Yes
Both timing references have failed.
Click
Close
on the View Timing/Sync
window. Continue with
No
One timing reference failed. Click
Close
on the View Timing/Sync
window. Proceed to
............................................................................................................................................................
8
Repair the timing references according to local procedures and then
proceed to
............................................................................................................................................................
9
Select the other timing reference. From the System View menu, select
Fault
→
Timing/Sync Protection Switch
→
System Timing
Reference/Source Switch
, select
MANUAL
, and click
OK
.
............................................................................................................................................................
10
Repair the failed timing reference according to local procedures.
............................................................................................................................................................
11
From the System View menu, select
Fault
→
Timing/Sync
Protection Switch
→
Clock Mode Switch
, select
Normal
, and click
OK
.
Procedure 5-16: Clear
″
excessive holdover
″
alarm
Trouble clearing procedures
....................................................................................................................................................................................................................................
5 - 5 0
Lucent Technologies
365-372-333 R2.1
Issue 4, June 2005