3Com 10002211 manual This message is immediately overwritten with

22COREBUILDER 6000 EXTENDED SWITCHING SOFTWARE REVISION 8.2.3

To remove a faulty power supply and replace it with a new unit, follow these steps:

1Turn off the power supply according to the safety and removal procedures in the Installation Guide that is shipped with the new power supply. The system control panel displays the following message (where n designates power supply 1 or power supply 2):

Power Supply n: Input Failure

2Remove the power supply. The system generates a sound, and the system control panel displays the following message:

Power supply n extracted.

3Insert the new power supply, following the safety warnings and instructions in the Installation Guide that comes with the new power supply. The system displays this message:

Inserted

This message is immediately overwritten with:

Input Failure

4Turn on the power supply. The system generates a sound and the system control panel displays this message:

Input restored

Power Supply Warning Messages. This release of system software now displays these power supply warning messages on the control panel when appropriate:

■+5V Failure

The power supply +5-volt input has failed.

■+12V Failure

The power supply +12-volt input has failed.

■ +5V Restored

The power supply +5-volt input is restored.