DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1712TDM-BUS (TDM Bus)
9
2. Power down the port network.
3. Replace all of the TDM/LAN Cable Assemblies and both TDM/LAN Bus
Terminators.
4. Restore power to the port network.
5. Run the
test tdm P
command to determine if the TDM Bus fault is still
present.
command to determine if the TDM Bus fault is still present.
6. If the TDM Bus fault is resolved, the procedure is completed. Otherwise,
go to Part 2.
Processor Port Network:
1. Terminate the TDM Bus so that it extends only across the Active SPE
control carrier.
2. Determine if the TDM Bus fault is still present by running the
test tdm P
command. While the TDM bus is extended only across SPE control
carriers the non-control channel test (#297) will not run on the non-control
channel because of the absence of a Tone Detector on the shortened bus.
After the TDM Bus tests are run once, run the
set tdm PC
command to
move the control channel to the non-active bus (the
status
port-network P
command will show which bus is currently active). After
the bus switch has occurred, run the
command will show which bus is currently active). After the bus switch has
occurred, run the
test tdm P
command again to determine if the newly
active bus is faulted.
3. If none of the TDM Bus tests fail, extend the TDM Bus to another carrier. If
that carrier is an SPE control carrier, repeat this procedure beginning at
step 2. If the carrier is not an SPE control carrier, the
test tdm P
command
only needs to be executed once since there is now a Tone Detector
present on the bus and both the control and non-control channels will be
tested in one test sequence.
4. If some of the TDM Bus tests fail, and since Procedures 2 and 3 have not
resolved the problem, the added carrier(s) are defective and must be
replaced.
Expansion Port Networks:
1. Terminate the TDM Bus so that it extends only across the carrier that
contains the Active Expansion Interface.
