[Soekris] Second Serial Port as RJ45?

Mark Smith mark at halibut.com
Tue Nov 26 23:48:39 UTC 2002

On Wed, Nov 27, 2002 at 12:21:50AM +0100, Bernd Walter wrote:
> I've never seen anything else than GND on 4 or 5, and TX/RX on 3/6 on
> modern devices but different use of the remaining pins.
> Even my old xyplex systems agree on these lines.

Digiboard: TX/RX are on 4/5, GND on 3/6.

The EIA standard.  Apparently, I was wrong.  You don't even get a Data/GND
pair with EIA.  Can someone explain the logic behind this for me?

I also remember incorrectly with the Livingston; it does use the
Cisco standard.

Oy.  Here's a device that I've never heard of (BayTech) that uses
a totally different pin-out than I've ever seen.  This site also
lists pin-outs to go from a BayTech to a bunch of other devices,
so you could use that as a guide to see what pin-out those other
devices use.

Suffice to say, there is no good "standard."   This is why I suggest
that which is probably most common (certainly most common in my 
machine rooms) which is the Cisco "standard."  It also makes the
most sense to me.

Mark Smith - finger mark at halibut.com for GPG v1.0.1 public key
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