[asterisk-users] t1 cards
Nick B.
nick at pelagiris.org
Mon Oct 6 16:18:56 CDT 2008
Have you considered fiber?
Nick
On Sun, Oct 05, 2008 at 07:52:54PM -0700, Eric Fort wrote:
> Here's a couple of distances I'm looking to cover (distances are +- 10%):
>
> 1 at 400M
> 1 at 600M
> 1 at 1800M
> 1 at 2400M
>
> some of these links may already have pots circuits complete with occasional
> ringing voltage in the same conduit (but likely not the same cable). how
> far can I push the distance of E1 over copper using only 2 cards back to
> back?
>
> Eric
>
> On Sun, Oct 5, 2008 at 5:19 PM, Andrew Joakimsen <joakimsen at gmail.com>wrote:
>
> > How much further than 300m? It might be very well possible to just
> > lower the speed to 10M and just use that.... If you already have some
> > quality Cat5 cable between both points it's worth a shot. I support
> > some sites with this arrangement and I've had to find 10M hubs for
> > replacement hardware (the previous guy insisted that only a particular
> > model HP print server would work, coincidently that model only has a
> > 10M Ethernet port)... it's not something I would advise someone to
> > setup but if cost is a concern I wouldn't rule it out -- it certainly
> > can work and be reliable in the real world.
> >
> >
> >
> > On Fri, Oct 3, 2008 at 3:14 AM, Eric Fort <eric.fort at gmail.com> 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?
> >
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