3Com 3C10241 How To Do

If the power supply, a port, or the Call Processor fails on your NBX V3000 system, you must remove your disk
drive assembly from the failed unit and install it in a replacement chassis, as described in this instruction sheet.
CAUTION: Always wear a properly grounded anti-static strap when you remove the cover from the
NBX V3000 system.
To install the NBX V3000 chassis:
1 If the system is running, shut down the NBX V3000 system software:
a Use the administrator login to open the NBX NetSet utility, and then click Operations > Reboot/Shutdown.
b Click Shutdown, and then wait a moment for the message that verifies that it is safe to turn the power off.
CAUTION: You must shut down the system software before you remove power from the NBX V3000
system to avoid file corruption problems.
2 Turn off the power switch on the back of the NBX V3000, and then disconnect the power cord.
3 If necessary, remove the NBX V3000 from the rack, and then remove the two rack mounting brackets.
4 Remove the nine screws (three from each side and three from the back) that secure the top cover.
5 Slide the cover slightly to the rear of the unit, and
then lift the cover off.
6 Remove the disk drive assembly. Refer to Figure 1:
a Remove the ribbon connector 1, the power
connector 2, and the jumper cable 3, from the
disk drive assembly. Take note of how each
connector is keyed to its connection.
b Remove the two screws 4, that hold the disk
drive assembly to the chassis.
c Lift the disk drive assembly from the four brass
corner clips that hold it to the chassis. You
must pull up firmly until the disk drive
assembly pops free from the corner clips.
7 Install the disk drive into the replacement chassis:
a Make sure the labels 5, on the disk drive
assembly are next to the power supply 6. Press
on each corner of the disk drive assembly until
you feel the corner clips seat firmly.
b Replace the two screws 4, that hold the disk drive assembly to the chassis.
c Attach the jumper cable 3, the power connector 2, and the ribbon connector 1, to the disk drive assembly.
8 If your NBX V3000 includes the optional memory upgrade (Figure 2), transfer the memory module to the
new chassis:
a To remove the memory module, slide both locking tabs away from the module until it pops up, and
then pull the module from the socket.
b Slide the new memory module into the socket. Press it into the socket until the cutouts on the side of
the module line up with the locking tabs, and then press down on the module until it locks into
place.
R
EPLACING THE
C A
HASSIS SSEMBLY
3C10241 — NBX V3000 Analog Chassis Replacement
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3C NBX
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Figure 1 NBX V3000 Internal Components
1
2
3
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V3000
4 5 6