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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-224ATM-SYNC (ATM Synchronization)
3
Notes:
a. Error Type 1: problem with the primary DS1 reference. It is cleared when
the primary reference is restored. The following steps should give an
indication of the source of the problem:
1. Check if the primary DS1 interface circuit pack is inserted in the
carrier with the
list configuration board UUCSS
command.
2. Verify that the administered primary reference matches the DS1
reference from the network synchronization plan.
3. Test the primary DS1 interface circuit pack with the
test board
UUCSS long
command. Check the Error Log for DS1-BD or
UDS1-BD errors and refer to the DS1-BD or UDS1-BD (DS1
Interface Circuit Pack or UDS1 Interface Circuit Pack) Maintenance
documentation to resolve any errors associated with the primary
DS1 (DS1 or UDS1) interface circuit pack. If the only errors against
DS1-BD or UDS1-BD are slip errors, then follow the procedures
described in the troubleshooting section above. If no errors are
listed in the Error Log for the primary DS1 interface circuit pack,
continue with the following steps.
4. Test the active Tone-Clock circuit pack in the master port network
with the
test tone-clock UUC long
command. Check the Error Log
for TDM-CLK errors and verify that TDM Bus Clock Test #148 (TDM
Bus Clock Circuit Status Inquiry Test) passes successfully. If Test
#148 fails with an Error Code 2 through 32, refer to the TDM-CLK
(TDM Bus Clock) Maintenance documentation to resolve the
problem.
b. Error Type 257: problem with the secondary DS1 reference. It is cleared
when the secondary reference is restored. Refer to note (a) to resolve this
error substituting
secondary
for
primary
in the preceding resolution
steps.
c. Error Type 513: the ATM switch clock is inferred to be providing the timing
source for the system. The primary and secondary (if administered) are
not providing a valid timing signal. Investigate errors 1 and 257 to resolve
this error.
d. Error Type 1537: over half of the DS1s that are administered with slip
detection enabled through the
Slip Detection?
field set to
y
are
experiencing slips.
e. Error Type 1793: inferred excessive switching of system synchronization
references has occurred. When this error occurs, it is inferred that the ATM
switch clock has become the synchronization reference for the system.
1. Check for timing loops and resolve any loops that exist.
2. Test the active Tone-Clock circuit pack in the master port network
with the
test tone-clock UUC long
command. Check the Error Log
for TDM-CLK errors and verify that TDM Bus Clock Test #148 (TDM