Chapter 3: Subsystem Monitoring
Status Indicating LEDs
3-5
Figure 3-3: PSU Module Rear LED
Color
Status
Static Green
The PSU is operating normally and experiencing no problems
Static Red
The PSU has failed and is unable to continue providing power to the
subsystem.
OFF
The power supply has not been turned on. The PSU module LED will
remain off even if the power cable has been plugged in but the power
switch not turned on.
Table 3-3: PSU module LED definitions
3.3.5 Cooling FAN Module LED
Figure 3-4: Cooling FAN Module LEDs and cooling FAN locations
