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Referencing Ground on the DAQPad 6015/6016

Hardware: Multifunction DAQ (MIO)>>Basic>>DAQPad-6015 for USB, Multifunction DAQ (MIO)>>Basic>>DAQPad-6016 for USB w/Screw Term, Multifunction DAQ (MIO)>>Basic>>DAQPad-6015 for USB w/BNC Term, Multifunction DAQ (MIO)>>Basic>>DAQPad-6015 for USB w/Mass Term

Problem: I have a DAQPad 6015/6016, and I am wondering if the ground pins are connected to earth ground. I know that USB devices without an external power supply (like the USB 6008/6009) use a system ground since there is no path to earth ground. Does the 6016 use this system ground reference when I connect to one of its ground pins, or is there a connection to earth ground through the power supply?

Solution: The DAQPad 6015 and 6016 ground pins are connected to earth ground. The USB ground and the external power supply ground are tied together with some resistors, so the two grounds are essentially one and the same.

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Report Date: 11/30/2005
Last Updated: 12/21/2005
Document ID: 3RTCAK0Q

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