How Are The Various Grounds Related In PCI/PXI R Series Devices?

Updated Feb 5, 2018

Reported In


  • PXIe-7846
  • PCIe-7846

Issue Details

I have a PCI/PXI R Series device and I noticed that the various functions of the R Series card each have their own ground. How are these grounds such as DGND, AIGND and AOGND related to each other?


All of the ground lines available on the front connectors of R Series devices are tied together internally and referenced to the PXI or PCI chassis ground connection.

Additional Information

There is some limited isolation between differently labeled ground lines, but they will all be referenced to earth ground attached to the chassis that the devices reside in. For example, there is some isolation between digital and analog ground, but they will both be referenced to earth ground.


Not Helpful