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SNI-BD (SNI Circuit Pack)
Issue 1 June 2005 2111
145 FAIL 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
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 Fiber link fault isolation
procedure in Maintenance
Procedures (03-300192).
3. Replace this SNI circuit pack.
4. Replace the connected circuit pack.
146 FAIL The SNI circuit pack has a fiber out of frame condition, and a loss of
signal 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 Fiber link fault isolation
procedure in Maintenance
Procedures (03-300192).
4. Replace this SNI circuit pack.
5. Replace the connected circuit pack.
Table 756: TEST #989 SNI Fiber Out of Frame Query (continued)
Error
Code
Test
Result
Description / Recommendation
5 of 6