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SNC-BD (Switch Node Clock Circuit Pack)
Issue 1 June 2005 2005
c. Error Type 18: the SNC circuit pack was busied out using busyout board location.
To resolve this error, use release board location to release the SNC circuit pack.
d. Error Type 257: these errors occur when firmware detects failure of the phase-locked loop,
inability to lock, or failure of the clock drivers and the problem is off-board.
1. Enter display errors and if SNC-BD Error Type 1793 exists in the hardware error
log, follow the repair procedures for SNC-BD Error Type 1793.
2. Enter display errors and if no SNI-BD 1025 errors exist in the error log, replace the
active SNC.
3. Enter display errors and if any SNI-BD 1025 errors exist in the error log, follow the
repair procedure in the SNI-BD section for these errors.
e. Error Type 513:This error occurs when the active SNC determines that there is a problem
communicating with the standby SNC via the connecting serial channel.
If the switch node carrier is administered with duplicate SNCs:
1. If the standby SNC (the one with its yellow LED off) has this error, escalate the problem.
(status switch-node also shows the active and standby SNCs.)
2. If the system originally had duplicate SNCs and the standby SNC was removed and
never replaced and the active SNC has not been reset after the standby SNC was
removed, this error will occur.
If you do not intend to replace the SNC:
a. Remove the standby SNC from circuit pack administration using change
circuit-pack.
b. If the problem persists, replace the active SNC circuit pack.
Otherwise:
c. Insert an SNC circuit pack.
3.
Use display errors to check the error log. If SNIs in the switch node carrier also have
problems communicating with the active SNC (i.e., error code 257 is logged against
SNI-BD), then replace the active SNC.
4. Replace the standby SNC circuit pack.
5. Retry test board.
Use display errors to check the error log. If this error is still in the
error log, replace the active SNC.
If the switch node carrier is administered with only one SNC:
● If step 2 above does not apply, replace the SNC.