<div dir="ltr">yes, more than 300 meters (longer than copper based ethernet allows). Yes to E1, as I understand it, it's just a config change on many cards anyway. I'm specificly looking at pci based t1/e1 cards because I'm finding single port cards on ebay going for 100-200 usd. in some cases I may want to drive a channel bank at the far end, thus t1/e1. anyone have experience on how far these pci based cards will drive when wired back to back?<br>
<br>Eric<br><br><div class="gmail_quote">On Thu, Oct 2, 2008 at 11:34 PM, Gordon Henderson <span dir="ltr"><<a href="mailto:gordon%2Basterisk@drogon.net">gordon+asterisk@drogon.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div></div><div class="Wj3C7c">On Thu, 2 Oct 2008, Eric Fort wrote:<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I presently need to connect a few channels of voice and data between<br>
multiple locations where I own the copper between them. Each location<br>
exceeds 300M from any other location. I'm thinking of generating T1's and<br>
running those between locations. If I use PC based cards wired back to back<br>
(I can do that, right?) what kind of distance can I expect to be able to<br>
span without needing repeaters? What inexpensive cards can you recommend<br>
for use with asterisk? I'm considering either digium or sangoma. Would I<br>
get any better performance if I used a sync-serial card connected to a<br>
separate csu/dsu?<br>
</blockquote>
<br></div></div>
300 metres, right? (not 300 miles?)<br>
<br>
Why stop at T1? Go for E1 :) with the right kit at each end you ought to be able to get 2Mb/sec or more. (distance depending)<br>
<br>
Personally, I'd go for a technology that gave me Ethernet at each end - then it makes it much easier to mix voice and data - But using something like a sync. modem and line driver then you need a media converter of some sorts at each end which might bump up the cost - at the savings of the E1 card in the PC though. Last time I had bare copper to play with (a BT EPS8 circuit) I had a 2Mb modem at each end going into a Cisco 2600 which was running CHDLC over the link and acting as nothing more than a dumb media converter to give me Ethernet at each end. This was 6 years ago though.<br>
<br>
Ah, Looks like the technology has improved somewhat:<br>
<br>
<a href="http://www.blackbox.com/Catalog/Detail.aspx?cid=381,1452,1468&mid=5261" target="_blank">http://www.blackbox.com/Catalog/Detail.aspx?cid=381,1452,1468&mid=5261</a><br>
<br>