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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-225ATM-SYNC (ATM Synchronization)
3
Bus Clock Circuit Status Inquiry test) passes successfully. If Test
#148 fails with an Error Code 2 through 32, refer to TDM-CLK to
resolve the problem. If not, continue with the following steps.
3.
For Duplicated Tone-Clock circuit packs in the master port network:
Switch Tone-Clock circuit packs on the master port network with the
set tone-clock UUC
command.
For Simplex Tone-Clock circuit packs in the master port network:
replace the primary and secondary (if administered) DS1 Interface
circuit packs.
4. Investigate any other SYNC errors.
f. Error Type 2049: the ATM Expansion Interface circuit packs have errors
that affect synchronization. Test the ATM Expansion Interface circuit pack
with the
test board UUCSS
command.
This error is cleared by a “leaky bucket” strategy and takes up to one hour
to clear (leak away) the error counter once it is cleared.
g. Error Types 1, 257, and 513: noise on the DS1 line can cause transient
alarms on synchronization. Therefore, when a synchronization problem
occurs on Error Types 1, 257, or 513, a WARNING alarm is first raised for
15 to 20 minutes before the alarm is upgraded to a MINOR or MAJOR
alarm.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented below when inspecting errors in
the system.
Test Synchronization Test (#417)
This test updates all the Synchronization Maintenance component circuit packs
with the correct information regarding their role in providing synchronization for
the system. All the Tone-Clock, ATM Expansion Interface, DS1 Interface, and
UDS1 Interface circuit packs in the system are updated through this test. This
test either passes or aborts.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive, ND = Non-destructive
Test Synchronization Test (#417) X X ND