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Chapter 12. RAS, monitoring, and troubleshooting 681

PSU status

Each PSU has three LEDs that display the status of its activity. The LEDs are the same for the

control and expansion units.

Figure 12-23 shows the PSU status LEDs.

Figure 12-23 PSU status LEDs

The meaning of each LED is shown in Table 12-8.

Table 12-8 PSU status LEDs

Name and

position

Color State Meaning

Input status

(top)

Green Solid Input power is available.

Off No input power is available.

Output

status

(middle)

Green Solid PSU is providing DC output power.

Off PSU is not providing DC output power.

Fault

(bottom)

Amber Solid A fault exists with the PSU.

Blinking The PSU is being identified. A fault might exist.

Off No fault is detected.

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