DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-949ISDN-SGR (ISDN-PRI Signaling Group)
9
Primary Signaling Link Hardware Check (#636)
The ISDN-PRI Signaling Group D-Channel port depends on the health of the
TN464C/D UDS1 Interface circuit pac k on which it resides. This test will fail if
there are problems with either the ISDN-PRI Primary D-channel port or the UDS1
circuit pack. If th ere are problems with the ISDN-PRI Primary Signaling Channel
port (ISDN-LNK), also investigate the UDS1 circuit pack (UDS1-BD).
Remote Layer 3 Query (#637)
This test will query the far-end switch or ter minal adapter to determine i f the
signaling connec tion is functioning p roperly at Layer 3. It will select a B-c hannel
in the in-service or maintenance servic e state and send an ISDN Layer 3
SERVice message, which requires a response from the far end (similar to
performing Test #256 on an ISDN trunk. The test will not be perfor med if there are
no B-channels in an approp riate ISDN service state (as when none are
administered or they are all out of servic e).
NOTE:
The service state can be d isplayed by using the status trunk <trunk
group/trunk member> or status pri-endpoint command.
As is the case with Test #256 for an ISDN trunk, a PASS only indicates that a
message was composed and sent to the far-end switc h or terminal adapter. The
ISDN PRI Specification allows up to 2 minutes for a response. Chec k the Error
Log for ‘‘ISDN-SGR (ISDN-PRI Signaling Group)’’ errors of type 2305 for eviden ce
of a Remote Layer 3 Query failure.
Error
Code Test
Result Description/ Recommendation
ABORT Internal system error
1. Retry the command at 1-minute intervals a maximum of 5 times.
1700 ABORT Rollabout video abort. The PRI terminal adapter associated with the primary
D-channel port is detached from the circuit p ack. This is a normal abort when
the rollabout video feature is enabled. To complete test on this port, either:
1. Re-attach the disconnected PRI terminal adapter, or
2. Disable the rollabout video feature on this board by entering change ds1
UUCSS and set field ‘‘Alarm when PRI Endpoint Detached?’’ to ‘‘y.’’
8 FAIL There is a problem with the UDS1 TN464C/D Circuit Pack or the ISDN-PRI
Signaling Channel (D-Channel). No ISDN trunk or PRI endpoint calls can be
made until the probl em is resolved.
1. Consult the procedures for the UDS1 TN464C/D Circuit Pack (UDS1-BD)
and the ISDN-PRI Signaling Channel (ISDN-LNK).
PASS The basic physica l connectivity of the p rimary D-channel is intac t and
functional. One might try this test repeatedly to ensure the link is up and to
uncover any transitory problems.