Ac Power Lamp - NEC Express5800/120Rd-2 Service Manual

AC POWER Lamp

There is an AC POWER lamp for the power supply unit on the rear. The lamp turns green and
flashes when the power supply unit receives AC power from the power cord, which is connected
to the AC inlet.
The lamp turns green when the server power switch is turned on. If the lamp 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 sales representative to replace the power supply unit.
If one power supply unit fails while an optional power supply is
NOTE:
installed, 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
powered down.
Power supply slot 1 Power supply slot 2
AC POWER lamp
System Overview 1-15
AC inlet for
power
supply slot 1
AC inlet for
power
supply slot 2