DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Alarms, Errors, and Troubleshooting
5-103Packet Bus Fault Isolation and Repair
5
Procedure 1
Procedure 1 determines whether any circuit packs that use the packet bus have
faults. For each circuit pack type in Table 5-8
proceed through the steps below.
Check the circuit pack in the order presented by the flowchart which appears
earlier in this discussion unless newly inserted circuit packs are involved. Newly
added boards are the most likely cause of a problem.
1.
Display errors
and
display alarms
for the circuit pack.
2. For any errors or alarms, follow the repair actions recommended in
Chapter 9, ‘‘Maintenance Object Repair Procedures’’
.
3. After following the recommended repair actions,
whether they succeed or
fail
, determine if the packet bus fault is resolved. If so, you are finished.
4. If the packet bus fault is still present, apply this procedure to the next
circuit pack.
5. If there are no more circuit packs in the list, go to Procedure 2.
Procedure 2
Procedure 2 removes and reinserts
port
circuit packs (purple slots), and the
Expansion Interface one or several at a time. Use Procedure 2 for each port
circuit pack in the port network until the problem is resolved
or
all port circuit
packs have been tried.
NOTE:
The Expansion Interface circuit pack should be the last one checked since
removing it disconnects the EPN. To check an active Expansion Interface in
a system with duplicated PNC, use reset pnc interchange to make it the
standby. (Always check the status of the standby before executing an
interchange.)
Table 5-8. Packet Circuit Packs
Circuit Pack Name Circuit Pack Code Associated Maintenance Objects
ISDN-BRI TN556 BRI-BD, BRI-PORT, ABRI-PORT, BRI-SET,
BRI-DAT, ASAI-ADJ
Maintenance/Test TN771D M/T-BD, M/T-PKT
Packet Gateway TN577 PGATE-BD, PGATE-PT
Packet Data TN553 PDATA-BD, PDATA-PT
Universal DS1 TN464F UDS1-BD, ISDN-LNK
Packet Interface TN1655 PKT-INTF
Expansion Interface TN570 EXP-INTF
