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Date:      Sat, 18 Jul 2009 01:04:19 -0700
From:      perryh@pluto.rain.com
To:        efinley.lists@gmail.com
Cc:        dkelly@hiwaay.net, FreeBSD-Questions@freebsd.org
Subject:   Re: 5000' ethernet?
Message-ID:  <4a618203.bzziFY80xJl2pRP3%perryh@pluto.rain.com>
In-Reply-To: <54e63c320907171229o3e29d0ffo9904bc3d321e01be@mail.gmail.com>
References:  <20090715194718.GA16401@Grumpy.DynDNS.org> <4a602cad.8BLh4Iukknk6sHl6%perryh@pluto.rain.com> <54e63c320907171229o3e29d0ffo9904bc3d321e01be@mail.gmail.com>

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Elliot Finley <efinley.lists@gmail.com> wrote:

> A T1 can only run about 600 feet.  Yes, that's right, 600 feet.
> When people talk about T1s running long distances, the reference
> to 'T1' is only the signalling at the end.  In the middle, that
> "T1" will be carried by other methods such as SONET over fiber for
> very long distances.  For the "last mile" it will be carried on
> HDSL or similar technology.  Or if it's a fairly long copper path,
> it can be carried on T-carrier.

I suspect T-carrier is probably the technology I'm thinking of,
which would have been sufficient to reach from "practically
anywhere" to a telco switching center, even back in the mid-1970's
when a "T1" was considered blazingly fast (and neither fiber nor
HDSL was at all widely used, if they even existed).



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