E1 - RJ45 pinout with ethernet crossover cable

[Sam Stickland <sam_ml () spacething org>]

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