Avaya S8700 Maintenance Manual page 2211

For multi-connect configurations

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Table of Contents

SNI-BD (SNI Circuit Pack)

Table 8-583. TEST #989 SNI Fiber Out of Frame Query — Continued

Description / Recommendation

The SNI circuit pack has a loss of signal condition, but no fiber out of frame

condition. Also, no lightwave transceiver is connected to the SNI circuit pack.

1. Check that the connected circuit pack is physically installed. The

2. If a lightwave transceiver is not supposed to be present, go to step 2. For

3. Perform the Fiber Fault Isolation Procedure described in Chapter 5.

4. Replace this SNI circuit pack.

5. Replace the connected circuit pack.

The SNI circuit pack has a fiber out of frame condition and a loss of signal

condition. Also, a lightwave transceiver is connected to the SNI circuit pack.

1. Check that the connected circuit pack is physically installed. The

2. Perform the Fiber Fault Isolation Procedure described in Chapter 5.

3. Replace this SNI circuit pack.

4. Replace the connected circuit pack.

connected circuit pack is the other endpoint of the fiber-link if no DS1C

complex is administered (check via list fiber-link). Otherwise, if a DS1C

complex is administered, the connected circuit pack is the DS1C circuit

pack connected to the SNI circuit pack.

example, an SNI connected to a DS1C circuit pack or an SNI with a

metallic connection does not have a lightwave transceiver. Otherwise,

check the lightwave transceiver connections. If OK, replace the lightwave

transceiver. If a fiber out-of-frame condition exists and lightwave

transceivers are used, check that the lightwave transceivers are of the

same type, that is, both are 9823a or both are 9823b. If they are not the

same type, replace one of the lightwave transceivers:

9823a is used for distances up to 4900 feet.

9823b is used for distances up to 25,000 feet.

connected circuit pack is the other endpoint of the fiber-link if no DS1C

complex is administered (check via list fiber-link). Otherwise, if a DS1C

complex is administered, the connected circuit pack is the DS1C circuit

pack connected to the SNI circuit pack.

Continued on next page

Issue 1 May 2002

Troubleshooting