[asterisk-users] Help With Physical Layer

[Dale Noll]

On Tue, Jun 30, 2015 at 3:34 AM, Tony Kasule <timotsmith at gmail.com> wrote:

> Hello,
>
> Anyone to help me with this issue? It has never worked :(
>
> On Wed, May 20, 2015 at 11:34 AM, Tony Kasule <timotsmith at gmail.com>
> wrote:
>
>> Hello users,
>>
>> I have a Digium Te235 and asterisk 13  which have worked well with 1
>> carrier but we have failed to add a 2nd carrier. The second telco brings
>> their E1 line over finer, terminated in a RAD modem and they give me
>> ethernet to the E1 card. It's the first time i am having install such a
>> solution, which ideally would be not a big problem.
>>
>> However, The  physical layer has failed to come up! I have tried the same
>> setup in an Alcatel OmniOCX and it works well. I can confirm that the port
>> is also well configured because when I interchange the cables (with the
>> exiting cable from the other telco), the alarm clears emmediately for the
>> 1st telco and becomes RED for the 2nd telco. A loop also clears the alarm
>> on both ports.
>>
>> The telco has told me to make sure that Line Impedance is 120 ohms but
>> There's no where to set that and when I was reading, I was told that E1 is
>> already 120 ohms so no need to change anything.
>>
>> Has anyone here experienced this?  What other things can I try?
>>
>> Thank you!
>>
>> Regards,
>> Tim
>>
>
>
Have you tried a E-1 Cross Over cable from your RAD modem to the Digium
card?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20150630/9bf3c485/attachment-0001.html>