
NI 9871 Operating Instructions 2 ni.com
This document describes how to use the National Instruments 9871 
and includes specifications and pin assignments for the NI 9871. 
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 9871. 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.
Safety GuidelinesOperate the NI 9871 only as described in these operating 
instructions.
Hot Surface This icon denotes that the component may be 
hot. Touching this component may result in bodily injury.