User manual
DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si 
555-230-127  
Issue 1
August 1997
Maintenance Object Repair Procedures 
Page 10-744ISDN-SGR (ISDN-PRI Signaling Group) 
10
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 10-246. TEST #647 Layer 2 Status Query Test — Continued
Error 
Code
Test 
Result Description/ Recommendation
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