billdeg
Technician
Hi all...I have wired up a connector (pins 9,11,18,25) from an IBM async card installed in an IBM XT which I attached to my teletype terminal strip on the other end. The teletype works fine with other computers, but I tried three nice-shape async cards, the teletype never stopped chattering (ready mode). I need to check the async cards more closely, but I am going with the assumption for now that at least one card works.
I flipped the jumper chip on async card's U5 per the manual.
According to my notes
http://vintagecomputer.net/browse_thread_record.cfm?id=422&tid=1
You're also supposed to flip a jumper on J13...where is J13?
Anyone got an IBM PC attached to a teletype (now or in the past)....I would appreciate some tips/ideas. I will proceed with voltage testing of each pin looking for clues.
Bill
I flipped the jumper chip on async card's U5 per the manual.
According to my notes
http://vintagecomputer.net/browse_thread_record.cfm?id=422&tid=1
You're also supposed to flip a jumper on J13...where is J13?
Anyone got an IBM PC attached to a teletype (now or in the past)....I would appreciate some tips/ideas. I will proceed with voltage testing of each pin looking for clues.
Bill