User`s guide

General Description 2-17

AC POWER LED

There is an AC POWER LED for the power supply unit on the rear. The LED turns green and flashes when the power supply

unit receives AC power from the power cord, which is connected to the AC inlet. (Flashing amber indicates no AC power is

received in any one of two power supplies in the redundant configuration.)

The LED turns green when the server power switch is turned on. If the LED does not go on when the server power switch is

turned on or if it turns amber, the power supply unit is probably faulty. In this case, contact your service representative to

replace the power supply unit.

AC POWER LED

AC inlet

Power supply

slot (option)

Power supply

slot (standard)

NOTE: If one power supply unit fails while an optional power supply is mounted, the system can

continue operation with the other power supply unit (redundant function). The failing power

supply unit can be replaced in hot swap mode (with the power on) without the system being

stopped.