Figure 14: Power Supply Module LEDs
Green OK LED2Amber FAIL LED1
The following table describes the power module supply LEDs and their states.
Table 9: Power Supply Module LEDs
Green LED (OK Status)Amber LED (Fail
Status)
OffOffNo power to all power supplies
OffOnPower supply module failure
Includes overvoltage, overcurrent, overtemperature,
and fan failure
Off1 Hz flashingPower supply module warning events
Power supply continues to operate.
With high temperature, high power, and slow fan
1 Hz flashingOffPower is present.
3.3 VSB on (power supply module off)
OnOffPower supply module is OK and on.
Fan Modules
The Firepower 4100 requires six fan modules, which are hot-swappable. They are installed in the rear of the
chassis. The system supports operation with a single fan failure (N+1 fan redundancy), but do not run the
system for an extended amount of time without all fan modules installed. Keep removal and replacement time
at three minutes. Remove and replace one fan module at a time.
If you remove a fan or a fan fails, the other fans operate at full speed, which can be noisy.
Overview
24
Overview
Fan Modules
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