Substitute cables for SHC68-68-EPM?

[JShan03062]

I have a PXI-6363.  The recommended cable is the SHC68-68-EPM.  I have one of those handy, but need 2.  I found a couple of unused cables laying around (SHC68-68-RMIO & SHC68-68-RDIO).  Can I use either of these as a substitute for an EPM cable?

[WestOfEden · Accepted solution]

I'm not convinced that you can just substitute them, and if they do work it would not be ideal. For one, the SHC68-68-EPM specifies it terminates in a 68 pin VHDCI offset, whereas the others are just VHDCI, but I haven't been able to find information on the difference. Beyond that, they don't list compatibility for X and M series for the RMIO or RDIO cables. While they're all 68 pin cables there are vast differences in wire grouping and shielding, and they're all optimized for different functionality/DAQ cards. I've found the wire mappings for the EPM and RMIO which demonstrates this. 

Wire Mapping List for the SHC68-68-EPM Cable

http://digital.ni.com/public.nsf/allkb/DE2D842E545DE64B86256F78006EAB1A

RMIO Cable Wire Mapping

http://digital.natinst.com/public.nsf/$CXIV/ATTACH-AEEE-88AQJT/$FILE/SHC68-68-RMIO.png

[Paul-D]

For future reference, we do not recommend the RDIO and RMIO cables for the PXIe-6363 due to their signal pairings and more.  

You can check out other PXI-6363 options here: http://www.ni.com/product-documentation/53082/en/

And check out more about DAQ cables here: http://www.ni.com/product-documentation/53943/en/