[aprssig] RS232,TTL and RS422 interfacing

Steve Noskowicz noskosteve at yahoo.com
Tue Jul 5 20:16:52 CDT 2016

Nice reference.  Even ECL and I have quite a bit of it...

I know RS-232 drivers are protected, but simply a diode to TTL seems a bit uncomfortable...

 Regards, Steve Noskowicz
 Science & Technical Advisor

On Tue, 7/5/16, Robert Bruninga via aprssig <aprssig at tapr.org> wrote:

 Subject: [aprssig] RS232,TTL and RS422 interfacing
 To: "TAPR APRS Mailing List" <aprssig at tapr.org>
 Date: Tuesday, July 5, 2016, 1:32 PM
 Here is a nice document that
 shows all the ways to do simple connections between all the
 serial standards, TTL, 232, 422, etc.I just put it in my
 “how-to” folder:http://www.ti.com/lit/an/snla041a/snla041a.pdf Bob,
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