Avaya 03-300430 User Manual

143

FAIL

The SNI circuit pack has a loss of signal condition, but no fiber out of 
frame condition. Also, a lightwave transceiver is connected to the SNI 
circuit pack.

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

connected circuit pack is the other endpoint of the fiber-link if no 
DS1C complex is administered (check using 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.

2. Perform the 

 procedure in Maintenance 

Procedures (03-300192).

3. Replace this SNI circuit pack.

4. Replace the connected circuit pack.

144

FAIL

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 

connected circuit pack is the other endpoint of the fiber-link if no 
DS1C complex is administered (check using 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.

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

For 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.

3. Perform the 

 procedure in Maintenance 

Procedures (03-300192).

4. Replace this SNI circuit pack.

5. Replace the connected circuit pack.

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