3
M
ain
te
na
nc
e
–
R
ep
la
cin
g a
P
ow
er
S
up
ply
NR6-8
Serial ATA II Disk Array Systems
Replacing a Power Supply
The NR6-8 is equipped with a Power Supply Fail Indicator LED at the front of the unit that
turns red when one of the power supplies fails. The message “Power x failure” appears
on the LCD panel, where x refers to power suply 1 or 2 and an audible alert sounds.
Note
Turn off the audible alert by pressing the Up and Down function but-
tons on the front panel twice simultaneously.
Power supplies are hot swappable, which means that they can be inserted and removed
while the disk array is powered on and operating. To prevent data loss, never remove both
power supplies at the same time while the unit is on and operating. Follow these instructions
to replace a failed power supply.
1
Identify the power supply that has failed.
COM
COM
Fan 2/4
P/S 2
Fan 1/3
HOST 1
LAN
Power Supply 1
Power Supply 2
2
Remove the power cable from the power supply connector at the rear of the unit.
Note
The system is equipped with auto switching power supplies that
can run on 100 to 240 VAC.
3
Loosen the power supply retaining screw.
FAN 2/4
FAN 1/3
P/S 2
COM
HOST 1
COM
LAN
Power Supply
retaining screw
13
www.netcomusa.com
