without any other hardware than 2 bare ass pci based t1/e1 cards wired back to back how far can one go between them? additional hardware defeats the purpose.
Eric On Fri, Oct 3, 2008 at 3:01 AM, Gordon Henderson <[EMAIL PROTECTED]<[EMAIL PROTECTED]> > wrote: > On Fri, 3 Oct 2008, Eric Fort wrote: > > 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? >> > > Looks like this is the thing then: > > http://www.blackbox.com/Catalog/Detail.aspx?cid=381,1452,1468&mid=5362 > > Just over $1000 a pair... > > couple that with an OpenVox PRI card at one end, channel bank at the other, > and off you go... > > Gordon > > > >> Eric >> >> On Thu, Oct 2, 2008 at 11:34 PM, Gordon Henderson < >> [EMAIL PROTECTED] <[EMAIL PROTECTED]> < >> [EMAIL PROTECTED] <[EMAIL PROTECTED]>>> wrote: >> >> On Thu, 2 Oct 2008, Eric Fort wrote: >>> >>> I presently need to connect a few channels of voice and data between >>> >>>> multiple locations where I own the copper between them. Each location >>>> exceeds 300M from any other location. I'm thinking of generating T1's >>>> and >>>> running those between locations. If I use PC based cards wired back to >>>> back >>>> (I can do that, right?) what kind of distance can I expect to be able to >>>> span without needing repeaters? What inexpensive cards can you >>>> recommend >>>> for use with asterisk? I'm considering either digium or sangoma. Would >>>> I >>>> get any better performance if I used a sync-serial card connected to a >>>> separate csu/dsu? >>>> >>>> >>> 300 metres, right? (not 300 miles?) >>> >>> 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) >>> >>> 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. >>> >>> Ah, Looks like the technology has improved somewhat: >>> >>> http://www.blackbox.com/Catalog/Detail.aspx?cid=381,1452,1468&mid=5261 >>> >>> From the UK site: >>> >>> Or even: >>> >>> http://www.blackbox.com/Catalog/Detail.aspx?cid=425,1423,1424&mid=4946 >>> >>> (same thing from the UK site:) >>> >>> >>> >>> http://www.blackbox.co.uk/solutions/display.asp?cs=dvh&id=1&doc=lb300a-r2&tx=LAN&sx=Network%20Appliances >>> >>> You need a pair, obviously... >>> >>> Hm. US site is $305, UK £253. Rip-off Britain again by the looks of >>> it.... >>> >>> As for inexpensive cards - OpenVox. Their E1 cards seem to work OK, but >>> if >>> using a LAN extender, then they're not neeed at all... >>> >>> Gordon >>> >>> _______________________________________________ >>> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >>> >>> AstriCon 2008 - September 22 - 25 Phoenix, Arizona >>> Register Now: http://www.astricon.net >>> >>> asterisk-users mailing list >>> To UNSUBSCRIBE or update options visit: >>> http://lists.digium.com/mailman/listinfo/asterisk-users >>> >>> > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2008 - September 22 - 25 Phoenix, Arizona > Register Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
_______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users