[asterisk-users] t1 cards

[Eric Fort]

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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