Excalibur
User Manual
41
9M02-7573-A001-EN
Version 3.0
Appendix II: System Fault/Status Messages
OCU Fault/Status Messages
The OCU has a ‘STATUS’ LED indicator that displays the current system status to the operator. When an OCU
fault is detected, the ‘STATUS’ LED will illuminate red and signal this with a series of blinks. Refer to the following
table for the blink sequence and the corresponding fault messages.
Note that any repairs or replacements should be made only by Cattron trained technicians.
OCU STATUS LED
INDICATION
FAULT
ACTION
2 flashes
TransKey cannot be read
Plug in the Transkey
3 flashes
TransKey configuration is incorrect
Check the Transkey configuration*
4 flashes
Fault in the low-voltage test during switch-on
Switch the OCU ‘OFF’ then ‘ON’ again
Replace/charge battery pack
If fault persists, investigate fault*
Change OCU board*
Return OCU for repair
5 flashes
Switch-on sequence not performed correctly
Switch the OCU ‘OFF’ then ‘ON’ again
6 flashes
Fault during reading of command initiator
Investigate fault*
Change OCU board/keyboard*
Return OCU for repair
7 flashes
Incorrect RF module or RF module incorrectly
configured
Replace the RF module or correct the
configuration*
Return OCU for repair
8 flashes
General system fault
Investigate fault*
Change OCU board*
Return OCU for repair
9 flashes
Low Power Supply voltage
Replace/charge battery pack
Change OCU board*
Return OCU for repair
10 flashes
Hardware Fault
Change OCU board*
Return OCU for repair
*Cattron customer-trained technicians only.
If necessary, contact the Cattron sales department at
for the replacement part number
applicable to your system configuration.
