Appendix F
Modifying and Installing I/O Expansion Boards
VXIpc 800/700 Series User Manual
F-6
©
National Instruments Corporation
•
Contact of the board with the SIMMs should not cause electrical
shorts (because of through-hole component leads on the side of the
plug in board that contacts the SIMMs).
•
Contact of the board with the SIMMs does not cause physical stress
to the plug-in board.
•
Contact of the board with the SIMMs does not cause physical stress
to the riser board into which the plug-in board is inserted.
Figure F-6 shows the length restrictions for ISA cards for the
VXIpc-860 when tall SIMMs are used.
Figure F-6. Length Restrictions for ISA Plug-In Boards Used with the VXIpc-860
when SIMMs Taller than 0.85 in. Are Used
Installing an I/O Board
The following material applies equally to all models in the VXIpc 800
Series.
Materials Needed
You need the following pieces to install an expansion board in the
VXIpc-800.
•
A user-defined panel is required on the expansion boards based
on National Instruments blank PCI or ISA panels. The panel
should be manufactured from 0.03 in. (0.76 mm) thick 1010 cold
rolled steel. The finish should be 0.0003 in. (0.008 mm) nickel
plate over 0.0001 in. (0.003 mm) copper flash. Contact National
Instruments if you have any questions about specifications for
user-defined panels.
Heat Sink
ISA Board
Possible Support
Bracket Positions
.85 in. High
SIMMs
8.4 in. max
Riser Card
Front Panel
VXI Connector