© National Instruments Corporation 3 NI USB-9229/9239 User Guide and SpecificationsCaution Make sure that devices and circuits connected to the module are properlyinsulated from human contact.Caution When module terminals are hazardous voltage LIVE (>42.4Vpk /60 VDC), youmust ensure that devices and circuits connected to the module are properly insulated fromhuman contact. You must use the NI 9971 connector backshell kit to ensure that theterminals are not accessible.Figure 3 shows the NI 9971 connector backshell.Figure 3. NI 9971 Connector BackshellRefer to the Installing the NI USB-9229/9239 Device for more informationabout installing the backshell.Related DocumentationEach application software package and driver includes information aboutwriting applications for taking measurements and controlling measurementdevices. The following references to documents assume you haveNI-DAQmx 8.7 or later, and where applicable, version 7.1 or later of theNI application software.NI-DAQmx for WindowsThe DAQ Getting Started Guide describes how to install your NI-DAQmxfor Windows software, your NI-DAQmx-supported DAQ device, andhow to confirm that your device is operating properly. Select Start»AllPrograms»National Instruments»NI-DAQ»DAQ Getting StartedGuide.The NI-DAQ Readme lists which devices are supported by this version ofNI-DAQ. Select Start»All Programs»National Instruments»NI-DAQ»NI-DAQ Readme.