National Instruments NI 9482 User Manual And Specifications page 8

The I/O port of this product is rated for
Caution
Measurement Category II; however, it is neither designed
nor tested for compliance with the transient immunity
requirements for Electrical Fast Transients or lightning
Surge, which are normally applied to ports intended for
connection to the electrical distribution system. For
applications where connection to the electrical distribution
system is desired, ensure that the I/O port is provided with
appropriate transient protection.
NI 9482 | © National Instruments | 7
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