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dsl: Definition and Recommended Links

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DSL or xDSL, is a family of technologies that provide digital data transmission over the wires of a local telephone network. DSL originally stood for digital subscriber loop, although in recent years, the term digital subscriber line has been widely adopted as a more marketing-friendly term for ADSL, which is the most popular version of consumer-ready DSL. DSL uses high frequency, while regular telephone uses low frequency on the same telephone line.

Typically, the download speed of consumer DSL services ranges from 256 kilobits per second (kbit/s) to 24,000 kbit/s, depending on DSL technology, line conditions and service level implemented. Typically, upload speed is lower than download speed for Asymmetric Digital Subscriber Line (ADSL) and equal to download speed for the rarer Symmetric Digital Subscriber Line (SDSL).

Source: Wikipedia (http://en.wikipedia.org/wiki/DSL)

other great electronics sites:ee toolbox site

• • dsl
    • DSL or xDSL, is a family of technologies that provide digital data transmission over the wires of a local telephone network. DSL originally stood for digital subscriber loop, although in recent years, the term digital subscriber line has been widely adopted as a more marketing-friendly term for ADSL, which is the most popular version of consumer-ready DSL. DSL uses high frequency, while regular telephone uses low frequency on the same telephone line.

      Typically, the download speed of consumer DSL services ranges from 256 kilobits per second (kbit/s) to 24,000 kbit/s, depending on DSL technology, line conditions and service level implemented. Typically, upload speed is lower than download speed for Asymmetric Digital Subscriber Line (ADSL) and equal to download speed for the rarer Symmetric Digital Subscriber Line (SDSL).

      Source: Wikipedia (http://en.wikipedia.org/wiki/DSL)

      (Note: The Electronic Engineers Toolbox provides an alternative set of featured links for this word at http://www.cera2.com/dsl.htm)

      Featured Links:

      Asymmetric Digital Subscriber Line (ADSL)

      Asymmetric digital subscriber line (ADSL) is a new modem technology that converts existing twisted-pair telephone lines into access paths for high-speed communications of various sorts. Overview ADSL can transmit more than 6 Mbps to a subscriber - enough to provide Internet access, video-on-demand, and LAN access.
      http://www.iec.org/online/tutorials/adsl/

      Fundamentals of DSL Technology

      Fundamentals of DSL Technology begins with an introductory three-chapter examination of DSL copper transmission channels, reviewing the basic telephone environment, the physical-layer twisted pair, and the noise environment in the twisted pair channel. The book then explores line codes - laying the foundation for later chapters about other aspects of DSL design - and discusses the basic objectives of DSL service, comparing DSL to other...
      http://www.amazon.com

      Multi-Access Gateways for Fixed & Mobile Networks

      Present day network architectures assume a dedicated gateway device serving each separate access network. So a 3G network is served by a GGSN or PDSN, and a DSL network is served by a B-RAS. Vendors are increasingly touting the capabilities of newer platforms to support multiple gateway devices either across multiple fixed or multiple wireless networks, and even across both fixed and wireless networks. This Webinar will describe changes in...
      http://www.lightreading.com

      University of New Hampshire's InterOperability Lab (IOL)

      The UNH-IOL offers collaborative testing programs in over 20 different data networking and storage technologies, including: 10BASE-T Ethernet 10 Gigabit Ethernet Backplane Bridge Functions DLNA ICV DSL Fast Ethernet Fibre Channel Gigabit Ethernet IPv6 iSCSI iWARP OpenFabrics Power over Ethernet Routing SAS SATA VoIP Wireless LAN Z-Wave Join now »
      http://www.iol.unh.edu/

      Digital Subscriber Line

      Topics include Asymmetric Digital Subscriber Line (ADSL), ADSL Technology, and Very-High-Data-Rate Digital Subscriber Line (VDSL).
      http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/adsl.htm

      Ralink Enters DSL Market with Complete Integrated Access Device (IAD) Designs that include ADSL2+

      Ralink Technology, Inc. (TAIEX 3534, Ralink), a leading developer of high performance wired and wireless networking solutions, today announced its two next generation xDSL2+ 11n Wi-Fi IAD (Integrated Access Device) solutions known as the TC3182P2V + and TC3182LEV. Designed as an all-in-one solution for service providers looking to provision rapidly growing markets around the globe, the TC3182x series offers the greatest cost to performance...
      http://www.ralinktech.com

      Asymmetric Digital Subscriber Line (ADSL)

      Asymmetric digital subscriber line (ADSL) is a new modem technology that converts existing twisted-pair telephone lines into access paths for high-speed communications of various sorts. Overview ADSL can transmit more than 6 Mbps to a subscriber enough to provide Internet access, video-on-demand, and LAN access. In interactive mode it can transmit more than 640 kbps in both directions. This increases the existing access capacity by more...
      http://www.iec.org/online/tutorials/adsl/index.asp

      DSL Forum

      DSL Forum is a consortium of more than 400 leading industry players covering telecommunications, equipment, computing, networking and service provider companies. The Forum is focussed on the complete portfolio of digital subscriber line (DSL) technologies designed to deliver ubiquitous broadband services for a wide range of situations and applications that will continue the transformation of our day-to-day lives in an on-line world.
      http://www.dslforum.org/

      Digital Subscriber Line (DSL) and the Evolution of Asynchronous Transfer Mode (ATM)

      Overview Deregulation, together with increasing consumer and business demand for high bandwidth services, has led to increased competition among service providers. This increase in competition has, in turn, presented providers with an important set of business challenges. With increased competition, it becomes critical for providers to market and press for innovative services. Providers must move up the value chain in service delivery,...
      http://www.iec.org/online/tutorials/dsl_atm/

      Advanced Management and Provisioning of Next-Generation DSL

      Next-generation, service-capable networks are defined as networks that are capable of differentiating between subscribers and subscriber sessions and of understanding application requirements over the network. In comparison to the public Internet, where all traffic competes for resources with equal priority and without control structure, next-generation networks segregate traffic types, users sessions, or individual users into defined access...
      http://www.iec.org/online/tutorials/manage_next/index.asp

      Explanation: these links are provided as part of our EE glossary project, which seeks to identify the most prominent keywords in embedded systems, embedded software, realtime and rtos, dsp (digital signal processing), system-on-a-chip, microprocessors and microcontrollers, and other constituent elements for embedded systems. While we seek to keep most of the links up-to-date, the user is refered to other primary electronic-based search sites such as: cera2.com, embedded.com, or EDN Magazine. If you have any suggestions of links or definitions, please email!

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