[72614] in North American Network Operators' Group
T1 short-haul vs. long-haul
daemon@ATHENA.MIT.EDU (Andre Oppermann)
Wed Jul 21 08:25:57 2004
Date: Wed, 21 Jul 2004 14:25:16 +0200
From: Andre Oppermann <nanog-list@nrg4u.com>
To: nanog@nanog.org
Errors-To: owner-nanog-outgoing@merit.edu
I'm having a few questions about T1 line support in the US because I have to procure
some Router/Network hardware for US branches of a company (I am from Europe).
Normally in Europe when you order an E1 (G.703) connection the Telco delivers a
NTU (Network termination Unit) which normally is a (S)HDSL modem converting from
two-wire DSL to four-wire E1 electrical. The cable between the NTU and the Router
is normally very short, a few feet/meters.
o How is this normally done in the US by the Telcos for T1 lines?
o I assume the difference between T1 short-haul and long-haul is the cable length.
But what is it used for? Is it still common to have long-haul T1 connections
either within buildings or towards the central office of the Telco? Would I be
fine with buying short-haul-only interfaces in any common scenario?
o What is "Wet T1 Capable"? What is it used for and who needs this?
o What else is important in dealings with US Telcos when ordering and using T1
leased-line services?
Thanks for any input.
--
Andre
