DSL Link

How does DSL Works

How Does DSL Works

How DSL Works

The "Plain Old Telephone Service" or POTS connects your home or small business to a teleph DSL Modem And it's Function one company office over copper wires that are wound around each other and called twisted pair. It is created for us to exchange voice information with the other end of the phone users. This type of transmission is called analog signal. An input device such as a phone set takes an acoustic signal (which is a natural analog signal) and converts it into an electrical equivalent in terms of volume (signal amplitude) and pitch (frequency of wave change). Therefore, that is why we need a modem to modulate and demodulate device the signal into the string of 0 and 1 which the computer recognized. Since the telephone company's signaling is already set up for this analog wave transmission, it's easier for it to use that as the way to get information back and forth between your telephone and the telephone company. The 0 and 1 signal is also known as digital information.

Since the copper wires only allows 56 kbps (analog transmission) amount of data to be transmitted through it, therefore, it is a waste of resources. Where as, With ISDN, which one might think of as a limited precursor to DSL, you can receive up to 128 Kbps. The ability of your computer to receive information is constrained by the fact that the telephone company filters information that arrives as digital data, puts it into analog form for your telephone line, and requires your modem to change it back into digital. In other words, the analog transmission between your home or business and the phone company is a bandwidth bottleneck.

Digital Subscriber Line 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. The most advantage of DSL is , you can use the DSL and your phone line concurrently without have to wait to other finishing using either of the service. Which mean, we can use the phone line and DSL at the same time.