Owner's Manual

Troubleshooting and Recovery 447
IOM
(Common)
Green, glowing steadily Powered on
Green, blinking Firmware is being uploaded
Green, dark Powered off
Blue, glowing steadily Normal/stack master
Blue, blinking User-enabled module identifier
Amber, glowing steadily Not used
Amber, blinking Fault
Blue, dark No fault/stack slave
IOM (Pass
through)
Green, glowing steadily Powered on
Green, blinking Not used
Green, dark Powered off
Blue, glowing steadily Normal
Blue, blinking User-enabled module identifier
Amber, glowing steadily Not used
Amber, blinking Fault
Blue, dark No fault
Fan Green, glowing steadily Fan working
Green, blinking Not used
Green, dark Powered off
Amber, glowing steadily Fan type not recognized, update
CMC firmware
Amber, blinking Fan fault; tachometer out of range
Amber, dark Not used
Table 12-14. LED Color and Blinking Patterns
(continued)
Component LED Color, Blinking Pattern Meaning