Sorry Robert, but you would need to get those kinds of things through here.
This forum would have no help for how to build hardware devices that interact with Xerox hardware.
I am trying to build a new foreign interface device. I have also ordered the Foreign interface kit. But I just got a RS232 cable. Does any of you have any documentation on how to develop a new FID?
The FID is planned to be used for 3rd party accounting.