Avaya Definity SI, Maintenance Manual, Page: 2515 / 2968

TDM-CLK (TDM Bus Clock)
Issue 4 May 2002 10-1729 555-233-123
4
or
8 FAIL The local oscillator on the Tone-Clock circuit pack has failed.
16
or
32 FAIL The circuitry on the Tone-Clock circuit pack used to detect
synchronization timing errors has failed.
1. Errors 2, 4, 8, 16, and 32 indicate that there is poor
synchronization between port networks and external
facilities. It may be noticeable to the customer in the form
of errors in data communications. The Tone-Clock circuit
pack is defective. See How to Replace the Tone-Clock
Circuit Pack in the TONE-BD section.
64 FAIL This message is only sent when an uplink message has
reported the loss of valid synchronization timing information
coming into this Port Network. It has been reported in
TDM-CLK Error Log entries; one or more of 1025, 1281, 1537,
2049 and 2305.
1. Resolve the errors indicated. No separate corrective
action is required.
65 FAIL The tone-clock is currently not able to lock on to the current
synchronization reference. If this tone-clock is in the master
port networK:
1. Examine the error log for any DS1-BD, SYNC or other
TDM-CLK errors and resolve as applicable.
2. Run this test again via the test tone-clock UUC command.
3. Examine the DS1 measurements to determine if the
facility is healthy.
4. Administer a new synchronization reference.
5. Replace the DS1 board currently supplying the reference.
If this tone-clock is in the slave port networK:
1. Examine the error log for any SYNC, EXP-INTF or other
TDM-CLK errors.
2. Run this test again via the test tone-clock UUC command.
Table 10-636. TEST #148 TDM Bus Clock Circuit Status Inquiry Test — Continued
Error
Code Test
Result Description/Recommendation
Continued on next page