DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1239PKT-BUS (Packet Bus)
9
h. The Maintenance/Test packet bus port (M/T-PKT) for this port-network is
not in service. This alarm does not appear for EPNs in Standard or High
Reliability systems since a TN771 is not required there. The error indicates
one or more of the following:
■ The packet bus port has been busied out (indicated by Error Type
18), and a Warning alarm is active against M/T-PKT in the same
port-network. Release the port by entering
release port UUCSS04
.
■ The packet bus port has failed. Look for alarms against M/T-PKT,
and attempt to resolve these alarms.
■ The Maintenance/Test circuit pack was not recognized by the
system at the last system restart. Replace the Maintenance/Test
circuit pack.
■ There is no Maintenance/Test circuit pack in this port-network. One
must be installed.
The TN711 must be installed before other packet bus alarms can be
resolved. (Alarms against a given maintenance object are not resolved
until all alarm-generating conditions have been cleared).
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the following tables. By
clearing error codes associated with the
Packet Circuit Pack Audit Test,
for
example, you may also clear errors generated from other tests in the testing
sequence.
Maintenance/Test Circuit Pack Query Test (#572)
This test queries the Maintenance/Test packet bus port about the state of health
of the packet bus. If the Maintenance/Test circuit pack indicates that the packet
bus has faults, the test fails. The corresponding failure code describes the
severity, type, and number of faults. The test passes if the packet bus is
fault-free.
NOTE:
A Maintenance/Test circuit pack is usually not present in any EPN of a
system without duplicated PNC (Critical Reliability). Customers may
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive; ND = Nondestructive
Packet Circuit Pack Audit Test (#573) X X ND
Maintenance/Test Circuit Pack Query Test (#572) X X ND
