General Description 2-15AC POWER LEDThere is an AC POWER LED for the power supply unit on the rear. The LED turns green andflashes when the power supply unit receives AC power from the power cord, which is connected tothe AC inlet. (Flashing amber indicates no AC power is received in any one of two power suppliesin the redundant configuration.)The LED turns green when the server power switch is turned on. If the LED does not go on whenthe server power switch is turned on or if it turns amber, the power supply unit is probably faulty. Inthis case, contact your service representative to replace the power supply unit.AC inletAC POWERLEDPowersupplyslot 1Powersupplyslot 2NOTES: If one power supply unit fails while an optional power supply ismounted, the system can continue operation with the other powersupply unit (redundant function). The failing power supply unit canbe replaced in hot swap mode (with the power on) without thesystem being stopped. In configuration of two power units, AC power may be suppliedonly to a single power unit through the power cord connected to thepower unit. If so, the power lamp on the other power unit (to whicha power cord is not connected) blinks amber. When a power cord isconnected to the power unit to supply AC power, the lamp changesto blink green. If the lamp still blinks amber, contact your servicerepresentative to ask maintenance.
