On Tue, Jun 09, 2009 at 12:56:25PM +0200, Eric Cathelinaud wrote:
> Thanks a lot for this layer 1 debugging tutorial. It helped me a lot since i
> was thinking I did something wrong with mISDN. I checked the step 3 and find
> out that my ISDN card was working fine.
> Then I tried to invert my twinax plugs and it worked. I think there is a
> mistake in the wiki.
> It's written in
http://bs11-abis.gnumonks.org/trac/wiki/BS11_Configuration :
> - left Y01 PCM in (from BSC): RJ45 pin 4,5
> - Y02 PCM out (to BSC): RJ45 pin 1,2
>
> but for me it works with :
> Y01 PCM : RJ45 pin 1,2 (orange / white orange for a straight cable)
> Y02 PCM : RJ45 pin 4,5 (blue / white blue for a straight cable)