TRS-80 Model 100: Phone port pinout

From: Roger Merchberger <>
Date: Sun Feb 6 15:26:43 2005

Rumor has it that Tom Owad may have mentioned these words:
>I need a quick bit of info from somebody with a Model 100:
>In TELCOM, set STAT TO M8N1E and hit F4 to enter TERM mode. Does your
>system give a brief high-pitched beep and then freeze, even before
>displaying the Prev/Down/Up/Full menu options?

Yea -- check your other switch - the "ORG/ANS" switch. It's barking out a
CD for you for the other machine to detect -- necessary 'way back in the
day' if you were calling into the machine remotely.

[[ ORG meaning 'originating' - you are initiating the call
    ANS meaning 'answer' - someone initiates the call; the M100
        needs to spit out a Carrier Detect for the remote machine
        to recognize. ]]

>I've found that mine (both of mine, now...) do this only with the modem
>setting, and I've also discovered an intermittent short in my acoustic
>cable, so I'm wondering if I damaged something.

Mine 'locks' every time (<SHIFT><BREAK> regains control) but only audibly
whines at me when the 'DIR/ACP' switch is on DIR, or direct connection.
I've never owned the an acoustic coupler for it, so I can't test that mode.

Roger "Merch" Merchberger

Roger "Merch" Merchberger  --  SysAdmin, Iceberg Computers
(?||?)  If at first you don't succeed, nuclear warhead
  _)(_   disarmament should *not* be your first career choice.
Received on Sun Feb 06 2005 - 15:26:43 GMT

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