CompuServe Messages

I have an old ADM-3 here that I use now and then for debugging stuff, or trying to get my PDP running. I found that in order to use it as a terminal I have to add in a null-modem connector (swap pins 2 and 3). I have used it to log on here before, with a null-modem connection to my actual modem. This peculiarity may be unique to my unit (it was used by electronics students to learn RS232 interfacing, and may have been permanantly altered), but I don't think so. Try using the opposite pins for 2 and 3 and see if it works. I also have operated just fine without pins 4,5,6, or 20 connected. (may also be hacked internally) I also have the maintenance manual for it if you have any specific problems you need to fix. (Never thought I hear about one of these here) Greg