Avaya S8700 Maintenance Manual page 1912

For multi-connect configurations

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Table of Contents

Maintenance-Object Repair Procedures

Table 8-486. Test #7 Conference Circuit Test — Continued

Description / Recommendation

The NPE of the tested port did not conference the tones correctly. This can

cause noisy and unreliable connections.

1. Enter the list configuration board UUCSS command. If the circuit pack

2. Test every administered trunk on the board. If one fails, this could be an

3. If every port fails, check the CARR-POW (see note below).

4. If several ports fail, check the error log for TONE-BD or TONE-PT errors. If

5. If the retry passes and troubles have been reported, coordinate isolation

6. Replace the circuit pack.

Issue 1 May 2002

is a TN767B vintage 8 or 9, replace the circuit pack with a TN767C V3 or

later. The error log may have error type 1281 entries.

off-board problem (such as an incoming seizure or an off-hook port seizure

during the test). Retest the board.

there are such errors, take the appropriate action. When the TONE errors

have cleared, rerun the test.

with the far-end PBX. Make sure that the near- and far-end switches and

any NTCE equipment (the CSUs) have the correct administration.

If the conference circuit test fails for every port on a circuit pack, a -5 Volt

power problem is indicated. If a TN736 or TN752 power unit circuit pack

is present, either the 631DB AC power unit or the 676B DC power unit

may be defective. (The 631DB power unit is used in a medium cabinet

cabinet powered by a DC power source.) The system may contain a

TN736 or TN752 power unit or a 631DB AC power unit, but not both

types of power units. See

to investigate problems with either a 631DB AC or a 645B

DC power unit. If a red LED is lit on TN736 or TN752 power unit circuit

pack, replace the pack.

''CARR-POW (Carrier Power Supply)'' on

Continued on next page

Troubleshooting