[78229] in North American Network Operators' Group
RE: E1 - RJ45 pinout with ethernet crossover cable
daemon@ATHENA.MIT.EDU (Alex Bligh)
Fri Feb 25 10:58:04 2005
Date: Fri, 25 Feb 2005 15:32:21 +0000
From: Alex Bligh <alex@alex.org.uk>
Reply-To: Alex Bligh <alex@alex.org.uk>
To: "Hannigan, Martin" <hannigan@verisign.com>,
Sam Stickland <sam_ml@spacething.org>, nanog@nanog.org
Cc: Alex Bligh <alex@alex.org.uk>
In-Reply-To: <A206819EF47CBE4F84B5CB4A303CEB7A2424F1@dul1wnexmb01.vcorp.ad.vrsn.com>
Errors-To: owner-nanog@merit.edu
--On 25 February 2005 09:43 -0500 "Hannigan, Martin"
<hannigan@verisign.com> wrote:
> Not that I know of, but I've never attempted what you
> describe. Putting the baluns in the loop will destroy the
> framing i.e. it's going to try and convert b8zs/ami to 802.x.
How does a balun destroy the framing (or rather line coding)? It's just a
pair of transformers, and hence AC characteristics pass through intact.
All you've done is converted impedance (and, IIRC, line voltage).
Alex
