Appendix E
Modifying and Installing I/O Expansion Boards
VXIpc -850 Series User Manual
E- 4
© National Instruments Corporatio n
Installing an I/O Board
Materials Needed
You need the following pieces to install an expansion board in the
VXIpc-850.
•
User-defined panel is required on the expansion boards based on
National Instruments blank PCI or ISA panels. Contact National
Instruments for a list of specifications for user-defined panels.
As an alternative , you can modify the blank panels provided with
the VXIpc -850. Custom panel design services are available from
National Instruments for a nominal fee.
•
PEM nut or a 4-40 nut with lock washer ( hole diameter should be
0.125 in ).
•
4-40 x 1/4 in. stainless steel panhead screw .
Installation Steps
Follow these steps to install the expansion board.
1. Notice that the VXIpc-850 includes two card guides that can be
rotated to secure the top of either a PCI or an ISA plug-in board.
You may use one or both of these card guides, depending on the
length of your installed board. Loosen the screw holding the guide
and rotate the guide to the uppermost position for PCI boards or
the lowermost position for ISA boards .
2. Replace the manufacturer-supplied panel bracket with the custom
bracket. The two holes in the bracket align with existing holes in
the VXIpc -850 front panel.
3. Seat
the board firmly in one of the expansion bus connectors.
4. Affix the board to the front panel with the two screws. You can use
a PEM nut on the back (far) side of the bracket, or a 4-40 nut with
lock washer ( hole diameter should be 0.125 in. ). In either case, use
a 4-40 x 1/4 in. stainless steel panhead screw to mount the
board/bracket assembly to the front panel.
