Re: Does anyone know how to switch individual serial port lines on/off ?

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#14

From: P.Bennett
Date: Wed, 01 Nov 1995 06:25

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In article <476c4i$op9@news.dmpe.CSIRO.AU>, m.ballard@chem.csiro.au (Mat Ballard) writes...
>hi there !
> 
>i'd appreciate any help or pointers on how to do the following.
> 
>i need to switch an individual serial port line on and off: ie:
>make pin #1 +5V, and pins #2 - #37 0V.

Assuming standard wiring on a DB-25 connector, pin 1 is frame ground, so you
can't make it +5!

If you can direcly

Peter Bennett VE7CEI                | Vessels shall be deemed to be in sight
Internet: bennett@triumf.ca         | of one another only when one can be
Packet: ve7cei@ve7kit.#vanc.bc.ca   | observed visually from the other
TRIUMF, Vancouver, B.C., Canada     |                          ColRegs 3(k)
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Message-ID: <31OCT199522255095@erich.triumf.ca>

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Path: arc1-ca.pugleaf.net!erich.triumf.ca!bennett
From: bennett@erich.triumf.ca (P.Bennett)
Newsgroups: comp.os.ms-windows.programmer,comp.lang.c,comp.lang.basic,comp.lang.basic.misc,comp.lang.basic.visual.misc
Subject: Re: Does anyone know how to switch individual serial port lines on/off ?
Date: 31 Oct 1995 22:25 PST
Organization: TRIUMF: Tri-University Meson Facility
Distribution: world
Message-ID: <31OCT199522255095@erich.triumf.ca>
References: <476c4i$op9@news.dmpe.CSIRO.AU>
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