"Chris Merrill" wrote in message news:9t5g4vo2rbfl372j6tlia0qvr9a0d1droh@4ax.com... > In my continuing quest to get ADT working with my //c+, I have made a > cable that does not work. > I made a null-modem cable several years ago that I used to transfer files, and also to print to an Imagewriter I. I remember I had a lot of trouble doing it because the IIc+ port is NOT the same as a Mac or IIgs port, even though it's the same type of connector. Unfortunately, I didn't take the greatest notes, but here's what I jotted down: IIc+ IIc Imagewriter II Imagewriter I 2 1 1 20 5 2 3 2 4 3 4 7 3 4 5 3 1 5 2 I think I had some trouble with the pinout of the IIc, because some references listed it backwards. The Imagewriter I connector is a DB25, so you could either adapt it to DB-9 or translate it. You listed wire colors on your diagram, those are not standardized folks, so don't work from the colors unless you've verified them with a continuity checker. Hope that helps, and I swear I'll do a better job of documenting next time. -Paul