Avaya S8700 Maintenance Manual page 1563

For multi-connect configurations

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FIBER-LK (Fiber Link)

Table 8-326. Test #756 SNI Off-Board Destructive Facility Test — Continued

Description / Recommendation

The data is not correctly looped around on Endpoint 2 of the fiber link (list

fiber-link can be used to display fiber link endpoints).

1. Check the lightwave transceiver.

2. Replace the lightwave transceiver. If a fiber out-of-frame condition exists

3. Replace the SNI circuit pack.

No problems associated with this test are detected on the SNI(s).

SNI Destructive Facility Test (#757)

This test is destructive.

The SNI runs a destructive loop around of the on- and off-board loop arounds.

This test returns the result of the on-board loop around, while Test 756 returns the

result of the off-board loop around.

For SNI-to-SNI fiber links, this test is run on both SNI circuit pack endpoints of the

and lightwave transceivers are used, check that the lightwave transceivers

are of the same type (both are 9823a or both are 9823b). If they are not

the same type, replace one of the lightwave transceivers.

Continued on next page

Issue 1 May 2002

Troubleshooting