MK>am trying to convert the audio output tones from a terminal node
MK>controller to a rs-232/rs432/mil-188 format. how can i do this.
MK>when converting the rs-232 back to the audio tones for input into
MK>the terminal node controller would i be limited to a single set
MK>mark freq. and a single set space freq.? in other words no wide/narrow
MK>or more than one mark or space freq.?
MK>any  help/info. on how to connect two terminal node controllers together
MK>via rs-232/rs-432/mil-188 protocol would be great.
Whew.  Once upon a time I had a Burr Brown controller (for machine
control purposes) that ran with the RS432 and someone gave me an offer I
couldn't refuse before I completed a similar conversion project.
It was eons ago and I've got my notes on it buried somewhere, but what I
do remember is that mailorder component suppliers like Newark sell
integrated circuit chips that will convert just about anything to just
about anything else, even ASCII-to-IBM Selectric conversons, if you can
imagine that.  Buy the right conversion chip and it's certain that the
other info you need will be included in the factory docs.
Also, in most good university tech libraries, you can find the details
that establish just about any ANSI, ASCII, SECS, IEEE standards, which,
in many cases, are identical to milspecs.  The usual differences between
milspec and commercial are just tolerances.
MK>is there any software that would cause a computer to listen to
MK>pactor/gtor/packet with a rs-232 serial input into the back of the
MK>computer? if this software exists i won't even need the terminal node
MK>controller in this application as the input for the units prior
MK>to the radio in this application accept rs-232/rs-432/mil-188 only.
MK>tnx 73's de mike kendall ke6cvh/mars-nnn0kye
Hmmmm, last time I looked, there was such a thing but it comes with a
card that you put in your computer which, seems to me, is a de facto
TNC.  Don't think there's a way around that 'un yet...leastwise I
haven't heard of one.  Good luck.
                                73 73's,
                                Diane
                                KC7LJG
 * SLMR 2.1a * Waddaya mean, the "right part"?!  Parts is parts.
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