Re: E1 - RJ45 pinout with ethernet crossover cable

["Miquel van Smoorenburg" <miquels () cistron nl>]

In article <cistron.cvn2v1$kc2$1 () news cistron nl>,
Miquel van Smoorenburg <miquels () cistron nl> wrote:
> In article
> <cistron.Pine.WNT.4.61.0502251117300.4032 () tech1 office toastedmedia net>,
> Sam Stickland  <sam_ml () spacething org> wrote:
> > 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 :/ ).
>
> The pinouts are different. It's easy to make your own E1 crosscable
> though.
>
> E1 uses pairs 4-5 and 3-6, just swap those.
>
>       4-5 <------------> 3-6
>       3-6 <------------> 4-5

I wrote this from memory, and I got it wrong. Sorry. It's not 4/5
and 3/6, but 1/2 and 4/5 (as others undoubtedly will point out).

Mike.