[78215] in North American Network Operators' Group
E1 - RJ45 pinout with ethernet crossover cable
daemon@ATHENA.MIT.EDU (Sam Stickland)
Fri Feb 25 06:21:29 2005
Date: Fri, 25 Feb 2005 11:25:33 +0000 (GMT Standard Time)
From: Sam Stickland <sam_ml@spacething.org>
To: nanog@nanog.org
Errors-To: owner-nanog@merit.edu
Hi,
Quick question: If I have two E1 ports (RJ45), then will running a
straight ethernet cable between the two ports have the same affect as
plugging a ballan into each port and using a pair of coax (over a v.
short distance).
Likewise would using an ethernet crossover cable have the same affect as
swapping the pairs round on one balland.
Or are the pinouts different to ethernet? I tried googling but couldn't
find anything (perhaps because I can't seem to spell ballan :/ ).
Sam
