NI 9421/9423 2 ni.com
This document describes how to use the National Instruments 9421
and National Instruments 9423 and includes specifications and
terminal assignments for the NI 9421/9423. In this document, the
NI 9421 with screw terminal, NI 9421 with DSUB, and NI 9423
are referred to inclusively as the NI 9421/9423. Visit
ni.com/
info
and enter rdsoftwareversion to determine which
software you need for the modules you are using. For information
about installing, configuring, and programming the system, refer to
the system documentation. Visit
ni.com/info and enter
cseriesdoc for information about C Series documentation.
Note The safety guidelines and specifications in this
document are specific to the NI 9421/9423. The other
components in the system might not meet the same safety
ratings and specifications. Refer to the documentation for
each component in the system to determine the safety
ratings and specifications for the entire system. Visit
ni.com/info and enter cseriesdoc for information
about C Series documentation.