[asterisk-users] Digium TE220 supported protocol

[Benoit]

Laurent a écrit :
> Le 19.01.2009 08:50, Benoit a écrit :
>   
>> Laurent a écrit :
>>     
>
>   
>> Well, the telcos techs said a straight cable should do the trick, but 
>> since i didn't get any isdn link up
>> with the straight, i built a crossover like what you described, with no 
>> luck either.
>>
>>     
>
> Did you check (like with a multimeter or something similar) the
> connectivity of your cable ? the first E1 crossover cable I made
> had a problem (entirely my own fault) and I thought it didn't
> work. The way I checked was by connecting the two ports of the
> Digium card with the crossover cable, and when I saw the LEDs turn
> red I knew my cable was not good.
>   
Yes !

That was it, i tested my cable with a multimeter, but i have been caught
by the mirror
effect on the diagram. Rebuilding the cable using correct numbering and
voila!
The link is up now !

Thanks a lot (and a trick for the telco tech that assured me a straight
cable would work).