DSL Connection is an extremely high-speed connection that uses the same wires as a standard telephone line.

Below are some advantages of DSL:
The speed is greater than a standard modem
DSL does not always require new wiring…..
A DSL connection works better when you’re nearer to the central office of the supplier. The further away you get from the central office, the poorer the signal becomes.
The connection is faster for receiving data than it’s for sending information on the internet.

In this article, we describe how a DSL connection manages to squeeze additional information through a normal phone line — and allows you to make regular telephone calls when you are online.

Telephone Lines
Then you understand that a normal telephone installation in America consists of a pair of copper wires the phone company installs in your house if you’ve read How Phones Work. DSL use this “extra capacity” to carry advice on the cable without disturbing the line’s ability to carry conversations. The whole strategy is dependant on fitting special frequencies to certain jobs.

You should know a few matters about a standard telephone line — the type that phone professionals phone POTS, for Plain Old Telephone Service to comprehend DSL. One of many ways that POTS makes the most of gear and the telephone company’s cables is by restricting the frequencies the switches, phones and other gear will take. This range of frequencies is miniature. And the cables have the possibility to manage frequencies up to several million Hertz typically.

The use of such a modest part of the total bandwidth of the cable is historic — recall the telephone system has been for about a century, in place, using a pair of copper cables to each house. The telephone system can package tons of cables into a tiny space without worrying about interference between lines by restricting the frequencies carried over the lines. Modern equipment that sends digital rather than analog information can safely use much more of the ability of the telephone line. DSL does only that.