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

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#18

From: Mr D.J. Burbridge
Date: Fri, 03 Nov 1995 10:05

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In article <47bibk$24c@news.gate.net> bhutto@gate.net (William Hutto) writes:
>In article <31OCT199522255095@erich.triumf.ca>,
>   bennett@erich.triumf.ca (P.Bennett) wrote:
>>In article <476c4i$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)
>>GPS and NMEA info and programs: ftp://sundae.triumf.ca/pub/peter/index.html
>
>I'd be happy to know where to find pin 37 on a DB-25 connector.

At the other end? :-)
-- 
============================================================================
| David Burbridge (d.burbridge@ic.ac.uk) | Change is inevitable...         |
| Mech Eng Dept, Imperial College, London|  except from a vending machine! |
============================================================================

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Path: arc1-ca.pugleaf.net!news.cc.ic.ac.uk!djbur
From: djbur@ic.ac.uk (Mr D.J. Burbridge)
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: 3 Nov 1995 10:05:03 GMT
Organization: Imperial College of Science, Technology and Medicine, London
Message-ID: <47cpgf$gko@oban.cc.ic.ac.uk>
References: <476c4i$op9@news.dmpe.CSIRO.AU> <31OCT199522255095@erich.triumf.ca> <47bibk$24c@news.gate.net>
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