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* Re: [gentoo-user] serial console
  @ 2005-07-31  4:10 99% ` Bob Sanders
  0 siblings, 0 replies; 1+ results
From: Bob Sanders @ 2005-07-31  4:10 UTC (permalink / raw
  To: gentoo-user

On Sat, 30 Jul 2005 19:20:36 -0400
"David H. Askew" <dhaskew@earthlink.net> wrote:

> I was looking around and found a Cisco console cable in a box of old
> junk.  It has, surprise surprise, RJ-45 on one side, and 9-pin serial on
> the other.  Would that work?
> 

Maybe, but Cisco is known for having a "special" pinout.

Best bet is to get a build-it-yourself RJ45 to DB9F adaptor - about
US$2.90, and the associated pin pusher - cause you'll mess up a
few times.

you;ll need to figure out which pins are transmit and receive - 2, and 3 on the DB9
side.  Also, note that different brands of RJ45 to DB9F connectors have
different color codes for the wires.  Typically you'll use 5 of the 8 wires, so best to
create a map on paper.  There is supposed to be the Yost standard, but certain
folks do violate it at times - Cisco, Dell, etc.  So you need to know the RS232 pinout
of your system.

Here are some pretty decent resources -

	http://www.ossmann.com/5-in-1.html
	http://yost.com/Computers/RJ45-serial/

Bob
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gentoo-user@gentoo.org mailing list



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