A generic reference to related DSL technologies such as ADSL SDSL IDSL HDSL and VDSL.
Digital subscriber loop service, where x refers to A, H, or V protocols.
Designation for igital ubscriber ine technology enabling simultaneous two-way transmission of voice and high-speed data over ordinary copper phone lines. An DSL line designates one that is asymmetrical in that the downloading of information from the Internet is much faster than the uploading of information from the home or office computer to the Internet. This characteristic fits well with most Internet browsing requirements, where one "click" on an Internet link at the computer is followed by a large amount of data being sent from the Internet back to the computer.
Generic acronym used to refer to any DSL service. The "x" can be replaced with a variety of letters, such as "a" for Asymmetric DSL and "s" for Symmetric DSL.
refers collectively to all types of Digital Subscriber Lines. See "ADSL" for more details.
xDSL is a generic name of the DSL technology that allows high-speed data communication through the existing telephone line (copper wires). It includes ADSL, VDSL, HDSL and SDSL which are collectively called xDSL. As xDSL uses frequencies higher than those for an ordinary telephone, it allows users to use both of them at the same time. The disadvantages are that a user cannot use it together with ISDN due to interference and cross-talk, which depends on the distance between the user and his telephone exchange.
This is a 'catch-all' phrase encompassing the family of DSL technologies (ADSL, SDSL...)
X standing for a variety of digital subscriber loop techniques. This is a telephone company offering where ADSL is the most current and most hyped service offering. There are other forms such as IDSL, HDSL, SDSL, VDSL, etc. Basically, they all represent different signal coding techniques created to transmit in a digital fashion at higher rates that previously allowed on the public telephone network. These XSDL services use the same telephone lines as the modem or ISDN connections, however, ADSL connection rates can be 1,544,000 bps or higher. Most home users would settle for 128,000, 256,000 or 384,000 bps because of cost. This technique also supports simultaneous connections, that is talking on one connection to the ADSL modem, while being connected to the Internet on another connection from your PC to the ADSL modem. The user PC connection is typically an Ethernet interface, requiring a plug-in card for the PC or laptop.
A group term see ADSL,HDSL, SDSL and VDSL (equipment information)
Refers to the various flavors of DSL (Digital Subscriber Loop). All encompassing term.
