Re: T1 short-haul vs. long-haul

["Stephen J. Wilcox" <steve () telecomplete co uk>]

On Wed, 21 Jul 2004, Andre Oppermann wrote:

> 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.

FYI I'm in the UK, this is not normal in all europe i guess.. they usually
present as unbalanced g703.

I dont know the answers to the below as I've never had a T1 in the US.. but I 
think its important particularly when ordering in a market your not familiar 
with to request the telco gives you a specification.

Even if you get the answers to the questions, dont assume this applies to all 
circuits from all telcos in NA.. get the spec and confirm with your supplier 
that you are getting what you expect. If you order the wrong thing it will cost 
money..

Steve

> 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.