I'm not quite sure what it is that you want. Hopefully, I can do some questioning such that you can come back with a little more information for me.
Looking at a PXI E Series device, do you want to know how the device signals route to the different pins via the pinout of the device? Do you want to know where the signals get routed on the back of the device, where it gets plugged into the PXI backplane?
After reading your post, it sounds like you want to use a PXI card without using a PXI chassis. Is that correct? You want to connect a ribbon cable to it? Hopefully you can clear some of these things up for me such that I can provide you with a sufficient answer.
I can direct you to some information regarding how
National Instruments PXI Boards Map to the PXI Backplane. You can also find common cables and connectors in the following document -
Multifunction DAQ Accessories.
Sorry I couldn't be of more immediate help.
Jared A