Library Table of Contents Index Previous Page (Alt-p) Next Page (Alt-n) Comments

Monitoring the power supply

LEDs on the power supply  Top

The FAS270/270c power supply has four LEDs. The LEDs indicate whether the power supply or the integrated fan module is functioning normally or whether there are problems with the hardware. You can also identify any hardware failure associated with the power supplies from the error messages displayed on your appliance console.

A normal functioning power supply shows the "check mark" green LED on the far left as on, with the rest of the amber LEDs off. A power supply fault turns on the appropriate amber LED, and causes the check mark LED to turn off.

Location of LEDs  Top

Each power supply is encased in a device carrier and housed at the rear of your appliance. The following illustration shows the location of the power supply LEDs.

Interpreting power supply LEDs  Top

The following table describes how to interpret the power supply LEDs.

Fault condition

Description

LEDs

PSU status normal

AC missing for this PSU

Fan fault

Output voltage, current, temperature fault

N

Normal operation

On

Off

Off

Off

1

Power supply failure

Off

Off

Off

On

2

Fan failure

Off

Off

On

Off

3

No power to this PSU

Off

On

Off

On

Library Table of Contents Index Previous Page (Alt-p) Next Page (Alt-n) Comments