Avaya 03-300430 User Manual

The Idle Time Slot test detects noisy time slots on the bus and takes them out-of-service. The 
Tone Detector circuit is told to listen to idle time slots and if it detects any noise on a time slot, it 
returns a failure. At the end of the test, any out-of-service time slots are retested to see if they 
are still noisy and restored to service if they are idle. After every time slot has been tested, 
maintenance counts the number of bad time slots and reports the number to the technician in 
the Error Code field. No more than 220 time slots will be taken out-of-service on one bus and no 
more than 300 will be taken out-of-service on both buses at one time.

None

ABRT

Could not allocate the necessary system resources to run this test. For 

example, maintenance could be running on the Tone Detector circuit and it 

is using the CPTRs.

1115

ABRT

Could not allocate the necessary system resources to run this test.

1. Retry the command at 1-minute intervals up to 3 times.

Any

FAIL

The Error Code indicates the number of bad time slots that were detected. 
The cause of this failure is most likely due to a bad port circuit pack and not 
the TDM bus itself.

1. Execute the command again.

2. If the error persists, check the Error and Alarm Logs for alarms, on the 

port network where the faulted TDM bus resides, on port circuit packs 
from the NPE Crosstalk test. Also check for EXP-INTF alarms 
associated with Error Type 1537.

3. Refer to the appropriate circuit pack’s documentation to clear the 

circuit pack’s problem.

4. Test the TDM bus again. If the error continues, see 

PASS

The success of this test indicates every idle time slot that is supposed to be 

idle are indeed idle. There is no noise on any of the idle time slots.