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Re: 2 Wire T1 - HDLC
From: "Hunter Pine" <hunter () compuhelp com>
Date: Mon, 14 May 2001 19:22:50 -0400


Actually, you're wrong.

I suggest you go to www.paradyne.com and do a search for the DSL Sourcebook.
It'll be on the top of the list of hits. Fill out their little form and look
at Chapter 3: DSL Basics. The third page down or so, the section is "HDSL
Enters the scene". It clearly states that HDSL is a 2 circuit system, 4
lines.

You are, however, correct in that HDSL can do more than T1 speeds. It can do
E1's as well, and even a little bit faster, up to 1.168mbps per line.
(that's roughly 2.33mbps to make myself clear).

Hunter Pine
Vice President, Network Operations
hunter () compuhelp com
CompuHelp Technologies
11 Lispenard Street
New York, NY 10013
212-995-2955 x21
http://www.compuhelp.com

----- Original Message -----
From: "John A. Tamplin" <jat () liveonthenet com>
To: "Hunter Pine" <hunter () compuhelp com>
Cc: "mike harrison" <meuon () highertech net>; <nanog () nanog org>
Sent: Monday, May 14, 2001 7:13 PM
Subject: Re: 2 Wire T1 - HDLC


On Mon, 14 May 2001, Hunter Pine wrote:

That was my mistake Mike. HDSL is NOT two SDSL lines by definition. It's
just two circuits running symmetric 768k DSL (not SDSL) bonded to form a
single1.5mb line.

Umm, no.  HDSL rides a single pair, and provides more than 1.5Mb.

John A. Tamplin jat () jaet org
770/436-5387 HOME 4116 Manson Ave
770/431-9459 FAX Smyrna, GA  30082-3723



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