DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1411SNC-BD (Switch Node Clock Circuit Pack)
9
SNC On-Board Test (#778)
This test is non-destructive.
This test queries the SNC circuit pack for status of the background tests run
on-board. These background tests include an SNC on-board microcontroller test,
clock test, an SNC on-board Stratum 3 oscillator test, and TPN microcontroller
test.
FAIL The SNC circuit pack reported failures or retransmitted a cleared failure
message.
1. Check the error and alarm logs for SNC-BD, SNC-LINK, or SNC-REF
entries. Use the display errors and display alarms commands with
category PNC. Fix any problems found by referring to the SNC Board,
SNC Link, or SNC Reference Error Log Entries tables in this section and
follow the associated repair procedures.
2. If no SNC-BD, SNC-LINK, or SNC-REF errors exist in the error and alarm
logs, retry the command.
PASS No problems are detected on the board.
0NO
BOARD
No board was detected by the test.
1. Check that SNC board is properly translated and inserted.
2. Run the test again. If it fails, reset the board. An SNC should be reset
instead of reseating the circuit pack. The reset board command should
almost never be used on an SNC. It may be necessary to use the reset
board command if the SNC circuit pack gets into a mode where it cannot
communicate with software. If an SNC with active errors and alarms is
reset, the errors and alarms may take a while to come back, therefore the
reset board command can mask real problems.
3. Run the test again. If it fails, the ID chip on board may be bad. Replace
the board and retest.
Table 9-552. TEST #777 Failure Audit — Continued
Error
Code
Tes t
Result Description/ Recommendation
Continued on next page
