DSL Technology

Paper Summary:

This paper provides an explanation of the DSL technology and its common variations. The hardware components are explained in both descriptive and illustrative form. The paper shows several illustrations giving examples on how the technology can be used. A discussion on the various businesses that would use DSL and the unique advantages and disadvantages, is presented.

Introduction
DSL Technology and Terminology
ADSL
SDSL
HDSL
IDSL
VDSL
Hardware Components of Digital Subscriber Lines - xDSL
Home Use / Small LAN
Other xDSL Standards
DSL Supplier Equipment
DSL Illustrations
Business Applications for xDSL
Summation
Works Referenced

From the Paper:

"In the current generation of internet connection service technologies available DSL or Direct Service Line is one of the most popular and most viable for a large number of different applications. DSL, in a very general sense, utilizes existing telephone lines to create a direct digital connection to the DSL providers substation where it shares in a guaranteed bandwidth (the size of the bandwidth is determined by pricing structures) on T1 and T3 lines owned or rented by the DSL company. Unlike cable, DSL is not affected by shared traffic. The guarantee of bandwidth means for a consistent connection speed and thus greater predictability of system load and use over the long term. DSL is available at both home and business speeds and has roughly 54% of the broadband consumer market 18.7 million subscribers worldwide, as compared to 11 million cable subscribers ("TeleChoice White Paper Challenges Inaccurate Assumptions about DSL", 1)."

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