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© National Instruments Corporation 3 USB-9211/9211A User Guide and Specifications
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the module, take the following
precautions. A hazardous voltage is a voltage greater than 42.4 V
pk
or
60 VDC to earth ground.
Caution Ensure that hazardous voltage wiring is performed only by qualified personnel
adhering to local electrical standards.
Caution Do not mix hazardous voltage circuits and human-accessible circuits on the same
module.
Caution Make sure that devices and circuits connected to the module are properly
insulated from human contact.
Caution When module terminals are live with hazardous voltages, make sure that the
terminals are not accessible by using the high voltage screw terminal enclosure. Refer to
the Assembling the High Voltage Screw Terminal Backshell section for more information.
Software
Software support for your hardware depends on the carrier being used.
Refer to Table 1 for a list of software support.
Examples are included with each software API. Refer to the corresponding
software Getting Started Guide for more information.
Table 1. Devices and Corresponding Components
Device Carrier Software Support
USB-9211 NI 9161 NI-DAQmx Base
USB-9211A NI 9162 NI-DAQmx