I have a NI 9403 module that I use with the cDAQ 9171 USB chasis.
I am trying to use 8 IO pins on the NI 9403 module to read data input. However, the NI 9403 module does not have internal pullup to 5V. It only has a pulldown resistor built in. The system providing this data to the NI 9403 module is far away and the signal output is either 0V or no connection. If I add a pullup resistor I need a 5V source but the NI 9403 module does not have a +5V pin that I can use. I can use a 5V wall power supply for this 5V source but that is a more complicated setup.
Is there any way that I can get a 5V source without using external power supply? Thanks for your help!