Article View: sci.electronics
Article #2844TTY33 and KIM1
From: Ron Watkins
Date: Mon, 13 Apr 1992 23:54
Date: Mon, 13 Apr 1992 23:54
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I just picked up an old ASR33 teletype from the U of Arizona bid-sale. I would like to interface this with my KIM-1 6502 processor. What I don't have is any knowledge of the interface. I know it uses 20ma current loop. But I also know that I need to install a TTY-KB switch on the KIM bus, but I don't know which two pins need to be put on a switch. I also took a look inside the tty and found that the wiring diagram for the KIM to TTY seems to be using different pin numbers than I have on my tty. They told me to hook wires from the KIM to the TTY using terminal block X (which I can't seem to find) or to P2 pin locations identified by number. My pins on my p2 are identified by alphabetic letters not numbers. If anyone knows the pinout of the TTY or the switch location for TTY-KB on the KIM, please e-mail me a note. Thanks, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ron Watkins [ron@argus.lpl.arizona.edu] / _____ / 931 Gould-Simpson bldg. / / / / University of Arizona / /____/ / Tucson, AZ. 85712 / / / (602) 621-8606 /_____ unar & / lanetary /_____ ab.
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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!asuvax!ncar!noao!amethyst!salado!argus.lpl.Arizona.EDU!ron From: ron@argus.lpl.Arizona.EDU (Ron Watkins) Newsgroups: sci.electronics,rec.radio.amature Subject: TTY33 and KIM1 Keywords: tty33 teletype kim-1 Message-ID: <1992Apr13.235456.2291@salado.rc.arizona.edu> Date: 13 Apr 92 23:54:56 GMT Sender: ron@argus.lpl.arizona.edu Distribution: usa Organization: Lunar and Planetary Lab, U of AZ Lines: 19