[gentoo-user] serial console

[gentoo-user] serial console

[David H. Askew]

I want to setup a serial console to one of my servers.  I realize that
this will require a specific type of cable.  As I understand it, the
cable will have an RJ-45 connector on the host side, and a serial
connector on the server side.  I'm assuming since my server only has a
standard 9-pin connector, thats what I need.

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?

Just thought I'd ask before I start ... perhaps it will save me some
hair ....


any help would be appreciated ...

- Dave

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Re: [gentoo-user] serial console

[Bob Sanders]

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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