Chapter 1 Introduction
© National Instruments Corporation 1-7 NI 781xR User Manual
Cables and Optional Equipment
National Instruments offers a variety of products you can use with R Series
devices, including cables, connector blocks, and other accessories listed in
Table 1-2.
Refer to Appendix B, Connecting I/O Signals, for more information about
using these cables and accessories to connect I/O signals to the NI781xR.
Refer to ni.com/products or contact the sales office nearest to you for
the most current cabling options.
Custom Cabling
NI offers a variety of cables for connecting signals to the NI781xR . If you
need to develop a custom cable, a generic unterminated shielded cable is
available from NI. The SHC68-NT-S connects to the NI 781xR VHDCI
connectors on one end of the cable. The other end of the cable is not
terminated. This cable ships with a wire list identifying which wire
corresponds to each NI781 xR pin. Using this cable, you can quickly
connect the NI 781xR signals that you need to the connector of your choice.
Refer to Appendix B, Connecting I/O Signals, for the NI 781xR connector
pinouts.
Table 1-2. Cables and Accessories
Cable Cable Description Accessories
SH68-C68-S Shielded 68-pin VHDCI male
connector to female 0.050 series
D-type connector. The cable is
constructed with 34 twisted wire
pairs plus an overall shield.
Connects to the following standard
68-pin screw-terminal blocks:
• SCB-68
• CB-68LP
• CB-68LPR
•TBX-68
• cRIO-9151—passive backplane
NSC68-5050 Unshielded cable connects from
68-pin VHDCI male connector to
two 50-pin female headers. The
pinout of these headers allows for
direct connection to SSR
backplanes for digital signal
conditioning.
50-pin headers can connect to the
following SSR backplanes for digital
signal conditioning:
• 8-channel backplane
• 16-channel backplane
• 32-channel backplane