User manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
Maintenance Objects 
3-40ANL-24-L (24-Port Analog Line) 
3
Conference Circuit Test (#7)
This test verifies that the NPE channel for the port being tested can correctly 
perform the conferencing function. 
Any FAIL This test can fail due to on-board or off-board problems. Off-board 
problems include EXP-PN and EXP-INTF faults, TDM-BUS faults, and faults 
associated with the tone detectors/tone generators. Clear all off-board 
problems before replacing the board. A TDM-BUS problem is usually the 
result of a faulty board connected to the backplane, or bent pins on the 
backplane.
1. Look for EXP-PN and/or EXP-INTF errors in the error log. If present, 
refer to “EXP-PN” and “EXP-INTF”.
2. Look for TDM-BUS errors in the error log. If present, refer to 
“TDM-BUS”.
3. Look for TONE-BD and/or TONE-PT errors in the error log. If present, 
refer to “TONE-BD” and “TONE-PT”.
4. Test the board when the faults from Steps 1, 2, and 3 are cleared. 
Replace the board only if the test fails. 
PASS The port is correctly using its allocated time slots. User-reported troubles 
on this port should be investigated by using other port tests, by examining 
station wiring, or by examining the station.
0NO 
BOARD
The test could not relate the internal ID to the port (no board). This could be 
due to incorrect translations, no board is inserted, an incorrect board is 
inserted, or an insane board is inserted.
1. Check to ensure that the board translations are correct. Use the list 
config command, and resolve any problems.
2. If the board was found to be correctly inserted in step 1, issue the 
busyout board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board long command. This should re-establish the 
linkage between the internal ID and the port. If this is not the case, 
check to ensure that there is a valid board inserted.
Table 3-16. TEST #6 NPE Crosstalk Test — Continued
Error 
Code
Te s t 
Result
Description/Recommendation
Continued on next page










