Maintenance Object Repair Procedures
555-233-123
10-976 Issue 4 May 2002
1 FAIL Layer 2 of the primary signaling channel is down:
1. Examine the results of the Primary Signaling Link
Hardware Test (#636) and follow recommendations
provided there.
2. If test #636 passes, the Layer 2 Query test may still fail if
the Signaling Channel at the far end has not been
administered correctly or if it has been busied out. Verify
that the Primary Signaling Channel (D-channel) at the far
end has been administered correctly. Verify that the DS1
port used for the Primary D-channel has not been busied
out at the far end.
2 FAIL Layer 2 of the secondary signaling channel is down.
1. Examine the results of Secondary Signaling Link
Hardware Test (#639) and follow recommendations
provided there.
2. If tests #639 passes, the Layer 2 Query test may still fail if
the Signaling Channel at the far end has not been
administered correctly or if the Signaling Channel has
been busied out. Verify that the Secondary Signaling
Channel (D-channel) at the far end has been administered
correctly. Verify that the DS1 port used for the Secondary
D-channel has not been busied out at the far end.
3 FAIL Both the primary and secondary Channels are down.
1. Examine the results of the Primary and Secondary
Signaling Link Hardware Tests (#636 and #639) and
follow recommendations provided there.
2. If tests #636 and #639 pass, the Layer 2 Query test may
still fail if the Signaling Channels at the far end has not
been administered correctly or if the Signaling Channels
have been busied out. Verify that the Primary and
Secondary Signaling Channel (D-channels) at the far end
have been administered correctly. Verify that the DS1
ports used for the Primary and Secondary D-channels
have not been busied out at the far end.
PASS The Primary Signaling Channel is up and, if administered the
Secondary Channel is up.
Table 10-353. TEST #647 Layer 2 Status Query Test — Continued
Error
Code
Te s t
Result Description/Recommendation
Continued on next page
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