User's Manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
 Maintenance Objects
3-1086TDM-CLK (TDM Bus Clock) 
3
TDM Bus Clock PPM Inquiry Test (#150)
This test evaluates the quality of the synchronization source for the Tone-Clock 
circuit pack
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.
66 FAIL There is an on-board failure of TDM clock hardware.
1. Use test tone UUCSS long to resolve the problem. The long test resets 
the board and is required to reload on-board RAM associated with the 
TN2182”s DSPs. The effect is that tone detectors are taken out of 
service momentarily and tones are removed from the TDM bus for 
about 10 seconds. This means that no dial tone or touch tones are 
available during this interval. It probably will not affect calls in progress, 
but could cause a call origination to abort or a user will not get dial tone 
when going off hook. 
2. If the test passes and the alarm does not resolve, retest (test tone 
UUCSS long clear).
3. If the test passes, terminate the repair process. If it fails, replace the 
circuit pack at the customer’s convenience.
66 FAIL There is an on-board failure of TDM clock hardware.
1. Replace the Tone-Clock circuit pack.
  PASS TDM Bus Clock Circuit Status is sane. There are no clock-detection circuit 
problems on the Tone-Clock circuit pack.
Table 3-482. TEST #150 TDM Bus Clock PPM Inquiry Test 
Error 
Code
Te st 
Result Description/ Recommendation
ABORT The system could not allocate the necessary resources for the test.
1001 ABORT The system could not allocate the necessary resources for the test.
1. Wait 1 minute, and retry the test.
Continued on next page
Table 3-481. TEST #148 TDM Bus Clock Circuit Status Inquiry Test — Continued
Error 
Code
Te s t 
Result Description/ Recommendation
Continued on next page










