Axel Griese
New Member
- Joined
- Oct 5, 2009
- Messages
- 3
Anybody have the docs for the U5 and U15 setting on the Original IBM PC Async Card 1502074?
I am particulary looking for the DB25 pinout for when it's in TTY Current Loop mode, and how to set U5 and U15 for that mode.
Right now I have:
U5: J1-J4 open, J5-J8 closed
U15: J9 and J10 open, J11 and J12 closed
Thanks.
AG
I am particulary looking for the DB25 pinout for when it's in TTY Current Loop mode, and how to set U5 and U15 for that mode.
Right now I have:
U5: J1-J4 open, J5-J8 closed
U15: J9 and J10 open, J11 and J12 closed
Thanks.
AG