Specifications

SQ: 1-39
RS3: Service Quick Reference Guide
Troubleshooting
Restoring Redundant FICs
When a primary FIC with redundancy fails, the redundant FIC takes over.
The failed FIC lights its red LED or flashes its green LED. Replace the
failed FIC and determine that the new FIC has its green LED lighted and
that the FIC Status screen shows no error for the FIC. The “Health” field of
the primary FIC will still show “Bad”.
The original configuration must be restored to have redundancy effective
again.
WARNING
Do not pull the redundant FIC to force a switch back to the
primary FIC. This introduces a “double hardware failure”
and may result in unexpected operation.
-
To restore FIC redundancy:
1. Call up the RIOB screen.
2. Put the RIOB in MANUAL.
3. Highlight the line:
Reset Backup of Line n (Press Enter)
and press [ENTER].
This restores the primary FIC and resets the backup FIC for
backup action. The Health field of the primary FIC will now show
“Good”.
4. Put the RIOB in AUTO.
Normal redundancy operation is restored.