Avaya S8700 Maintenance Manual page 2353

For multi-connect configurations

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Table of Contents

TIE-DS1 (DS1 Tie Trunk)

Table 8-633. 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.

The port can correctly conference multiple connections. User-reported troubles

on this port should be investigated using other port tests and by examining

station, trunk, or external wiring.

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. To investigate problems with a 631DB AC or 645B

DC power unit, see

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

8-393. If a red LED on TN736 or TN752 power unit circuit pack is on,

replace the pack.

Continued on next page

Issue 1 May 2002

Troubleshooting