© National Instruments Corp. 17 NI 9265 Operating Instructions and Specifications
Safety
Maximum Voltage1
Connect only voltages that are within the following limits.
Channel-to-COM or Vsup-to-COM...±40 V max

Isolation Voltages

Channel-to-channel...........................No isol ation between
channels
Channel-to-earth ground, Vsup-to-earth ground,
or COM-to-earth ground
Continuous................... .............. 250 Vrms,
Measurement Category II
Withstand....................................2,300 Vrms, verified by a 5 s
dielectric withstand test
Measurement Category II is for measurements performed on
circuits directly connected to the electrical distribution system.
This category refers to local-level electrical distribution, such as
1 The maximum voltage that can be applied between any channel or Vsup terminal
and a COM terminal without damaging the module or other devices.