How does DSL Work?

How a DSL connection works is quite similar to how a telephone works – it also makes use of a copper wire. These telephone copper wires have extensive space, and it can carry more than your telephone conversation. It has a large bandwidth, or a range of frequencies, than that is required for a voice telephone call. DSL then makes use of these spaces to bring information visible on the line without disturbing the conversations on the telephone. The complete plan of DSL is just to match specific frequencies to tasks at hand.

To understand how DSL works, you must need to understand how a telephone line works first – or to telephone professionals, the POTS or Plain Old Telephone Service. Traditional phone service was created to let you exchange voice information with other phone users and the type of signal used for this kind of transmission is called an analog signal. One of the ways in which the POTS works is to actually limit the frequency of what a phone conversation can carry over the wire. A normal telephone conversation has a frequency range between 0-3,400 hertz, which is a very small portion of the range of frequencies. There are some phone lines which actually carry several million hertz, as compared to a normal phone conversation. By having such a tiny small space in the copper wire, the telephone system can actually squeeze in other range of frequencies without having to worry about disrupting the flow of conversation.

This is where the Digital Subscriber Line (DSL) connection comes in, as the equipment can send more digital rather than analog data, and this can actually maximize the power of the phone line. DSL is a technology that assumes digital data does not require change into analog form and back. Digital data is transmitted to your computer directly as digital data and this allows the phone company to use a much wider bandwidth for transmitting it to you. Meanwhile, if you choose, the signal can be separated so that some of the bandwidth is used to transmit an analog signal so that you can use your telephone and computer on the same line and at the same time.

Knowing how a DSL connection works makes you treasure indeed that you have a one-of-a kind system in your phone line.

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