[GreenKeys] TTY 33 & IBM 5150

[Tom Lake]

“John,
I hope you don't mind that I post to the entire group, should someone else want this info too...

There is a socketed shunt module on the bottom right of the original IBM async board, just pull it out and re-insert upside down (so the dot is pointing down) for current loop. If you're going to use slot 8 of an IBM PC or XT a jumper is required on connector J13. Why, I don't know off-hand.”

If you try to put it in slot 8 of a PC (not XT) You’ll have a problem since the PC only has five slots! 8^)

Tom Lake