Avaya Definity SI, Руководство по обслуживанию, Страница: 2359 / 2968

SW-CTL (Switch Control)
Issue 4 May 2002 10-1573 555-233-123
b. The 257 errors are reported to the processor by the Switch Control and
indicate possible hardware problems on the TN2401/TN794 NetPkt or
TN777B Netcon circuit pack. The receipt of these errors causes Switch
Control maintenance to run specific Switch Control tests. If there really is a
problem, the Switch Control tests usually causes other errors to be logged.
In the rare case where no other errors are logged but 257 errors are
occurring at a high rate (more than 10 in the last hour), the NetPkt or
Netcon circuit pack should be replaced at the customer’s convenience.
c. If the Aux Data is less than 100, the test may have been interrupted by
LMM operations. Wait 1 minute, then test again. Retry the test a maximum
of 3 times. If the Aux Data is more than 100 or fails two out of three times
with Aux Data less than 100, the NetPkt or Netcon circuit pack needs to be
replaced.
d. A 769 error occurs when the Switch Control reports a loss of timing signals
to the processor. When this error is present, the Switch Control is usually
not alarmed since any Switch Control test failures are really the result of
faulty signals from the PPN cabinet Tone-Clock circuit pack. See TDM-CLK
(TDM Bus Clock) Maintenance documentation for the procedures needed
to diagnose Tone-Clock circuit pack troubles.
e. This error indicates a loss of handshake between SW-CTL and the system
software. Look for and resolve all other SW-CTL errors. In the rare case
where no other errors are logged, but Error Type 1281 is occurring at a
high rate (more than 10 in the previous hour), escalate the problem.
A loss of handshake can be caused by the TN2404/TN790 Processor
circuit pack, the TN2401/TN794 NetPkt (or TN777B Netcon), the TN765
Processor Interface circuit pack, or the M-BUS.
Follow these repair steps:
1. Look for and resolve all other SW-CTL errors.
2. Look for and resolve all other PI-SCI, PI-BD, and PKT-INT errors.
3. If the error indicates a failure in the NetPkt or Netcon circuit pack,
replace the NetPkt or Netcon circuit pack. Boot the system up after
the NetPkt or Netcon circuit pack has been inserted successfully
into the control carrier. Execute the set time command to program
the correct time and date into the time-of-day clock.
4. If the error of loss of handshake persists after the replacement of the
NetPkt or Netcon circuit pack, replace the Processor circuit pack.
Refer to the “Software Upgrade” section to load the system software
from the Memory Card (J58890TG-1 List 3) with the correct software
release into the Processor circuit pack. Boot the system up after the
system software is successfully loaded into the Processor circuit
pack.
NOTE:
If you replace the Processor circuit pack, you need to get a
new license file.