DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-420CO-DS1 (DS1 CO Trunk)
9
FAIL The NPE of the tested port did not conference the tones correctly. This will
cause noisy and unrelia ble connections.
1. Enter the list configuration board UUCSS command. If the circuit
pack is a TN767B vintage 8 or 9, replace the c ircuit pack with a TN767C
V3 or later. The error log may have error type 1281 entries.
2. Test all administered trunks on the board. If one fails, this could be an
off-board probl em (such as an incoming seizure or an off-hook port
seizure during the test). Retest the board.
3. If all of the ports fail, check the CARR-POW.
4. If several ports fail, check the error log for TONE-BD or TONE-PT errors.
If there are such errors, take the appropriate action. When the TONE
errors have cleared, rerun the test.
5. If the retry passes and troubles have been reported, coord inate
isolation with the CO. Make sure that the switch, the CO, and any NTCE
equipment (the CSU’s) have the correct administration.
6. Replace the circuit pack.
NOTE:
If the conference circuit test fails for all ports on a circuit pack, a -5
volt power problem is indicated. To investigate problems with a power
unit, refer to “CARR-POW”. If a red LED on a TN736 or TN752 power
unit circuit pack is on, replace the pack.
PASS The port can correctly conference multiple connec tions. User-reported
troubles on this port should be investigated by using other p ort tests and by
examining station, trunk, or ex te rnal wiring.
Table 9-176. TEST #7 Conference Circuit Test — Continued
Error
Code Test
Result Description/ Recommendation
Continued on next page