me to a telephone company. This connection allows users to exchange voice information by converting an acoustic signal (the voice) into an electrical equivalent (analog wave). This existing analog wave transmission only uses a small portion (about 4KHz) of the available 1MHz frequencies for voice transmission. The remaining frequencies can be used for transmitting data. The only limitation is that you must be within 18,000 feet of the CO (Central Office). DSL is a technology that assumes digital data does not require a change from analog form and back. By sending digital data back and forth from your PC to the phone company, your computer does not have to modulate and demodulate the information as it does when using a modem. This allows digital data to be transmitted from your computer to the phone company, achieving a much wider bandwidth. The signal is separated (modulated) so that both the computer and the telephone can be used simultaneously without interruption. Typically, the layout of a DSL network can be split into two parts: The customer’s premises and the central office (CO). The customer’s PC is connected to a DSL modem, which is then connected to the POTS (Plain Old Telephone System). Data and voice are then split as they are transmitted to the CO. Voice goes to the PSTN (Public Switched Telephone Network) and data goes to the DSLAM (DSL Access Multiplexer). Data is then routed to the Carrier Network, the ISP (Internet Service Provider) and on to the Internet. Speeds of DSL can vary greatly depending on the proximity of your home to the central office. Homes in close proximity may be able to receive data rates up to 6.1 megabits per second, enabling continuous transmission of motion, video, audio and 3-D effects. Typically, however, single connections will provide downstream rates of 1.544 Mbps to 512 Kbps and an upstream rate of approxima

Some topics in this essay:
Subscriber Line, Office DSL, SW Bell, Speeds DSL, FTC DSL, ADSL GLite, LANs Internet, Finally VDSL, Information Technology, According ADSLcom, central office, telephone companies, copper wires, customer’s premises, digital subscriber line, subscriber line, phone company, dsl technology, existing copper, high-speed internet, digital data, central office co, switched telephone network, existing copper wires, public switched telephone,