Date: Thu, 26 Jul 2001 08:34:33 -0400 From: Christopher Sean Hilton <chris@vindaloo.com> To: Doug Young <dougy@brizzie.org> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: null modem wiring Message-ID: <20010726083433.C15490@andale.vindaloo.com> In-Reply-To: <026101c115b5$b17ce220$8200a8c0@apana.org.au>; from dougy@brizzie.org on Thu, Jul 26, 2001 at 07:30:11PM %2B1000 References: <026101c115b5$b17ce220$8200a8c0@apana.org.au>
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On Thu, Jul 26, 2001 at 07:30:11PM +1000, Doug Young wrote:
> Would someone please direct me to a simple english explanation
> (ideally with a diagram rather than the obligatory martian text) of
> the "pin to pin" wiring for null modem cable to work between two
> FreeBSD 4.3 machines
>
> I've tried the example provided in the handbook but its wording is quite
> confusing & other websites have various different configurations (none
> of which work properly)
>
I use the Null modem pinouts from "The C Programmers Guide to Serial
Communications", J. Campbell. It's an old book so it will be tough to find
but if you have to play with RS232C serial it's a great reference. These
cables have worked great for me in all types of serial applications. Sun,
RS/6000, PC etc. I used to use one of these cables to do ftp installs of
FreeBSD 2.0.5 over slip to a laptop which did not have PCMCIA or a CD-ROM
drive. I was able to run the install at 115.2 kbaud with no problems.
--
Chris Hilton chilton-at-vindaloo-dot-com
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"All I was doing was trying to get home from work!"
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