© National Instruments Corporation 3 NI USB-9229/9239 User Guide and Specifications
Caution Make sure that devices and circuits connected to the module are properly
insulated from human contact.
Caution When module terminals are hazardous voltage LIVE (>42.4Vpk/60 VDC), you
must ensure that devices and circuits connected to the module are properly insulated from
human contact. You must use the NI 9971 connector backshell kit to ensure that the
terminals are not accessible.
Figure 3 shows the NI 9971 connector backshell.
Figure 3. NI 9971 Connector Backshell
Refer to the Installing the NI USB-9229/9239 Device for more information
about installing the backshell.
Related Documentation
Each application software package and driver includes information about
writing applications for taking measurements and controlling measurement
devices. The following references to documents assume you have
NI-DAQmx8.7 or later, and where applicable, version 7.1 or later of the
NIapplication software.

NI-DAQmx for Windows

The DAQ Getting Started Guide describes how to install your NI-DAQmx
for Windows software, your NI-DAQmx-supported DAQ device, and
how to confirm that your device is operating properly. Select Start»All
Programs»National Instruments»NI-DAQ»DAQ Getting Started
Guide.
The NI-DAQ Readme lists which devices are supported by this version of
NI-DAQ. Select Start»All Programs»National Instruments»NI-DAQ»
NI-DAQ Readme.