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<DIV> </DIV>
<DIV> </DIV>
<DIV>------ Original Message ------</DIV>
<DIV>From: "Tony Kasule" <<A href="mailto:timotsmith@gmail.com">timotsmith@gmail.com</A>></DIV>
<DIV>To: "Asterisk Users Mailing List - Non-Commercial Discussion" <<A href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</A>></DIV>
<DIV>Sent: 30/06/2015 8:34:47 p.m.</DIV>
<DIV>Subject: Re: [asterisk-users] Help With Physical Layer</DIV>
<DIV> </DIV>
<DIV id=x1db55e20916c4cb9af57913f3a2a8f54>
<BLOCKQUOTE class=cite2 cite=CAGdS5J9MJX4iCjmYobSWacz7e6-Q+3zgQ0Y+VD+xVEm5XCrKwQ@mail.gmail.com type="cite">
<DIV dir=ltr>Hello,
<DIV><BR></DIV>
<DIV>Anyone to help me with this issue? It has never worked :(</DIV></DIV>
<DIV class=gmail_extra></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV><SPAN id=x1a14f34505964e4d8c0abaff7f5f6cbe>
<DIV>Hi Tony</DIV>
<DIV> </DIV>
<DIV>I'm not familiar with the card you but 120 ohm is usually twisted pair, and 75 ohm is coax (usually). If it is changeable its usually done with jumpers on the card. I have used RAD modems before and their cable will have a specific pinout that you need to match. I doubt your digium card by default matches the pins, but maybe, and perhaps maybe your alcatel did. There will be a tx pair and an rx pair and you need to make sure they connect to the rx and tx pairs on the digium preferably with the same polarity. If you are getting no signal I would think its that. You can use a multimeter to check for voltage on the pins. </DIV>
<DIV> </DIV>
<DIV>Once you get that sorted another catch maybe timing. You will need to take E1 timing from one or other of the Telco's, with one as the primary source. If they for some reason aren't synced you will get errors every so often</DIV>
<DIV> </DIV>
<DIV>Good luck</SPAN> </DIV>
<DIV> </DIV>
<DIV>Cheers Duncan</DIV></DIV>
<BLOCKQUOTE class=cite2 cite=CAGdS5J9MJX4iCjmYobSWacz7e6-Q+3zgQ0Y+VD+xVEm5XCrKwQ@mail.gmail.com type="cite">
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Wed, May 20, 2015 at 11:34 AM, Tony Kasule <SPAN dir=ltr><<A href="mailto:timotsmith@gmail.com">timotsmith@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir=ltr>Hello users,
<DIV><BR></DIV>
<DIV>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.</DIV>
<DIV><BR></DIV>
<DIV>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.</DIV>
<DIV><BR></DIV>
<DIV>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.</DIV>
<DIV><BR></DIV>
<DIV>Has anyone here experienced this? What other things can I try?</DIV>
<DIV><BR></DIV>
<DIV>Thank you!</DIV>
<DIV><BR></DIV>
<DIV>Regards,</DIV>
<DIV>Tim</DIV></DIV></BLOCKQUOTE></DIV><BR></DIV></BLOCKQUOTE></DIV></BODY></HTML>