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 wit h the following steps.
3.

For Duplicated Tone-Clock circuit pac ks in the master port network:

Switch Tone-Clock circuit packs on the master p ort network with the
set tone-clock UUC command.

For Simplex Tone-Clock circuit packs in the master p ort network:

replace the primary and secondary (if ad ministered) DS1 Interface
circuit packs.
4. Investigate any other SYNC errors.
f. Error Type 2049: the ATM Expansion Interface ci rcuit packs have errors
that affect synchronization. Test the ATM Expansion Interface circuit pac k
with the test board UUCSS command.
This error is cleared by a “leaky b ucket” strateg y and takes up to one hour
to clear (leak away) the error counter onc e 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 p roblem
occurs on Error Types 1, 257, or 513, a WARNING alarm is first raised for
15 to 20 minutes before the alarm is upg raded to a MINOR or MAJOR
alarm.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order p resented below when insp ecting errors in
the system.
Test Synchronization Test (#417)
This test updates all the Synchronization Maintenanc e component circ uit packs
with the correct information reg arding their role in provid ing synchronization for
the system. All the Tone-Clock, ATM Expansion Interface, DS1 Interface, and
UDS1 Interface circuit pac ks in the system are updated through this test. This
test either passes or aborts.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND1
1. D = Destructive, ND = Non-destruc tive
Test Synchronization Test (#417) X X ND