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.