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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1204SW-CTL (Switch Control)
10
Switch Control Reset Test (#93)
This test is destructive.
This test resets the Switch Control and determines if it can successfully go
through its initialization sequence. The test is destructive since there is the
possibility of losing some control messages to or from port circuit packs.
other FAIL Messages could not be looped back through the control channel interface. If
this is a standard system, the customer probably cannot make or receive calls.
1. This failure could be due to either a Netcon circuit pack failure or the loss
of system timing signals. If the Switch Control is alarmed, then suspect a
Netcon circuit pack failure. If the Switch Control is not alarmed, investigate
the possible loss of system timing signals before replacing the Netcon
circuit pack. Test #94 also fails if the system timing signals are lost. If Test
#94 passes, do not suspect the loss of timing signals.
2. Run the Short Test Sequence several times to make sure that this failure is
occurring consistently, run the Long Test Sequence to reset the Switch
Control. Sometimes running the Long Test Sequence may clear the
problem. If the test is still failing, proceed to Step 3 or 4.
3. If the system can process calls, replace the Netcon board.
4. If calls cannot be made, replace the Netcon board immediately.
5. The procedure for replacing the Network Control circuit pack (DATA-BD)
in a High or Critical Reliability system is described in Chapter 6,
‘‘Reliability Systems: A Maintenance Aid’’. The procedure for doing the
same in systems without High or Critical Reliability is described in Chapter
5, ‘‘Routine Maintenance Procedures’’.
PASS The control channel interface between the processor and the Switch Control is
working correctly.
Table 10-414. TEST #92 Control Channel Interface Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page