From: utzoo!decvax!ucbvax!C70:info-cpm Newsgroups: fa.info-cpm Title: MX-80 Serial boards Article-I.D.: ucb.1185 Posted: Tue May 25 23:51:40 1982 Received: Sat May 29 06:07:55 1982 >From CAIN@Mit-Ai Tue May 25 23:51:28 1982 CAIN@MIT-AI 05/25/82 19:23:21 Re: MX-80 Serial boards To: MSCHILLER.COOP*MC at MIT-AI CC: INFO-CPM at MIT-AI Mike, There is a wire on the main board that controls where the MX-80's input comes from. I assume that the motherboard of the F/T is the same as the 80 non F/T, and that's true on mine. When you install the serial (or IEEE or any other board) on the Epson, this wire goes to a pin on the interface, effectivly shutting out input from the parallel port. You might be able to rig up a switch though ...I really don't know (never had to try). Hope this helps a bit Jonathan