NEC SA2500 User Manual - page 86
User Guide
83
www.nec-computers.com
Hot-Swappable Power Supply Features
This hot-swappable power supply consists of three independent power modules. If one
of the modules should fail, the other two will supply power to the system until you can
change the failed module. The failed module can be hot-swapped.
Notes connect all three power modules to power outlets to
ensure continuous operation.
When a power module is operating normally, the LED is lit green. Should it fail (or the
power module switched off, or unplugged), a buzzer will sound, and the LED will turn
off. Press the Fan Failure, Overheat and Power Supply Failure button (
see “Front
View” on page 14
) on the front panel to turn off the alarm.
Hot-Swapping a Power Module
Figure 14: Hot-swappable Power Supply
A: Power module switch
B: Power module input receptacle
C: Power module removal clips
D: Power module LED
E: Power supply bracket screw
F: Power supply bracket
1. Identify the power module you need to swap (its LED is turned off).
2. Switch it off (A) and disconnect the power cord from both sides (power outlet
and system).