Lucent Technologies 555-233-119 Switc h Contr ol Reset Test,

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-997SW-CTL (Switch Control)
3
faulty signals from the PPN cabinet Tone-Clock circuit pac k. See
TDM-CLK (TDM Bus Clock) Maintenance documenta tion for the
procedures needed to diagnose Tone-Clock circuit pac k troubles.
e. This error indicates a loss of hands hake 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, b ut Error Type 1281 is occurring at a
high rate (more than 10 in the previous hour), esc alate the problem.
A loss of handshake is caused by the Processor circuit pac k. Follow these
repair steps:
1. Look for and resolve all other SW-CTL errors.
2. Look for and resolve all other PKT-CTRL errors.
3. If the error indicates a failure in the Processor c ircuit pack, replac e
the Processor circuit pac k. Boot the system up after the Processor
circuit pack has been inserted succ essfully into the control carrier.
4. If the error of loss of handshake persists after the rep lacement of
the Processor circuit pac k, consider the replacem ent of the control
carrier. It’s possible that the backplane of the c ontrol carrier may be
defective.
Recommended Repair Kits: Processor circuit pack (TN798) with
correct software release.
f. The Aux Data for this error is not meaningful. The 1793 errors are in-line
errors that indicate a possib le problem with the interfac e between the
Switch Control and the processor. The receipt of these errors causes
Switch Control maintenance to run spec ific Switch Control tests. If there
really is a problem, the Switch Control tests usual ly causes other errors to
be logged. In the rare case where no other errors are logged b ut 1793
errors are occurring at a hig h rate (more than 10 in the last hour), the
Processor circuit pack should be replaced at the customer’s convenience.
g. This error indicates bad clock detection c ircuitry on the Processor circuit
pack. Replace the Processor c ircuit pack acc ording to the control carrie r
circuit pack rep lacement procedures.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order p resented in the table below when
inspecting errors in the sy stem. By clearing error codes associated with the
Switc h Contr ol Reset Test, for example, you may also clear errors generate d from
other tests in the testing sequenc e.