Can i use a cRIO-9474 module as a low side switch?

A setup I want to test applies continuous 12V to the hot side of the device and controls it by switching ground. The only nearly-suitable module I have available is a cRIO-9474. Looking at the data sheet schematic, it seems as though I could use this module to switch ground by connecting Vsup to my system ground and DO to the device. However, the specs list the min Vsup as 5V. Does this approach sound feasible, or will I mess up the switching transistors by connecting Vsup to ground?
Jeff

Hello, Jeff!
I think the best approach would be to use a cDAQ relay module such as the 9485 or 9481. These will allow you to directly control a relay, and can handle the voltages you're working with. Please let us know if you have further questions on these, or if there is a reason they won't work for your application.
Have a great weekend!
Will Hilzinger | Switch Product Support Engineer | National Instruments

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