Tandata TD1100 printer port

As I mnentioend the other night, I've added the parallel printer port to that TD1100 viewdata terminal. The output is a DA15 socket, and in fact the hardest part of adding the port was cutting the back panel of the unit ot allow the conenctor to come through. I had to remove the back panel entirely from the PCB, which invovled desoldering the line wires and the mains wiring.... Anyway. I then had to make a cable from the DA15 to a 36 pin Microribbon conenctor to conenct ot a Cnetronics-interfaced printer. As I mentioend, I'd gueessed as to what the signals were, so I sued those guesses for the initial wiring. Connected the unit to an old Epson FX80+ and pressed the 'print' key on the terminal. It printed. Some garbage, some readable text. I then rememebred the pritner setup screen (type 'P#' at the dialer screen) and found it was set to 'teletext compatible' -- i.e. it would handle the various teletxt/viewdata controll codes and graphics. I reset it to 'ASCII text' and tried again. This time it printed correctly -- almsot. It was double-spacign the lines. I then realsied that the pritner had previously been used with a BBC micro, a machine that, by default, sends only a <CR> as a newline. There's a DIP swithc in most old Epsons to cater for this, it foces the AutoFeedXT line on the inteface conenctor low. Only problem was, I didn't haev the printer manaul. Oh well, I just took it apart and traced the conenctions from the AutoFeedXT pin through the filter resistor to a DRIP swithc. Turnrf it off (so it no longer asserted the AutoFeedXT signal) and put the pritner together. This time it worked fine. My gueses on the printer port signals had probed to be correct. In case anyoen else wants to do it, here's the wirelist (and colours) of the cable I made : 1 o----D3------Or----o 5 2 o----D6------Bu----o 8 3 o----D7------Pu----o 9 4 o----D0------Bk----o 2 5 o----D4------Y-----o 6 6 o----D5------Gn----o 7 7 o----Err/----R/Bu--o 32 8 o----Gnd-----Gy----o 19 9 o----Gnd-----W-----o 30 10 o----D1------Be----o 3 11 o----D2------R-----o 4 12 o----Init/---Tq----o 31 13 o----Stb/----Pk----o 1 14 o----Ack/----R/Y---o 10 15 o----Busy----R/Gn--o 11 DA15P 36 pin Microribbon -tony