Before we continue, let us again define the concept of information and communication technology. Dsl technology overview dsl overview digital subscriber line dsl is a broadband access technology that enables highspeed data transmissions over the existing copper telephone wires local loops. Dsl uses the standard twistedpair telephone lines that come into every home for normal telephone service. Dsl digital subscriber line is a special service that allows digital data to be delivered to a computer using a normal telephone line. Digital subscriber lines dsls are highspeed internet connections that use standard telephone lines.
It is used to strengthen their awareness and understanding of what digital citizenship is and encourages users of technology to be and become responsible digital citizens. Fast guide to dsl digital subscriber line reference. Digital subscriber line dsl definition and diagram. A new technology that provides high transmission speeds for video and voice to homes over ordinary copper telephone wire. Provides an overview of the technology and a description of the main types of dsl in use today. Find out how dsl uses extra bandwidth to provide a fast internet connection without taking over your phone. Our jargonbusting guide b y n i c o l a b r o o k e s as technology develops, new words are entering the english language every day and its hard to keep up. Digital subscriber line dsl is a technology that transports highbandwidth data over a simple telephone line that is directly connected to a modem. Understanding data communications wiley online books. 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. It is an efficient and economic substitute of existing copper infrastructure including telephone and coaxial cable.
Currently, digital subscriber line dsl and cable modem technologies look to be the most cost effective and practical methods of delivering. Download pdf share understanding the modern call centre. Bank and the download understanding digital subscriber line technology, volume 1 prentice hall ptr, 1999 joint ventures, ian hewitt, 2005, joint ventures, 856 pages. Adsl is a type of digital subscriber line dsl technology, a data communications technology that. What is an asymmetric digital subscriber line adsl. Understanding digital subscriber line technology informit. Describes the digital network used by communications carriers and the methods used to obtain access to the digital highway. Understanding digital subscriber line technology january 1999.
It also offers a comprehensible explanation of issues in this growing field to managers, marketing experts. In line with visual thinking, digital marketin g offers. Asymmetric digital subscriber line adsl definition asymmetric digital subscriber line adsl is a new modem technology that converts existing twistedpair telephone lines into access paths for highspeed communications of various sorts. Adsl is a type of digital subscriber line dsl technology, a data. Typically, the download speed of consumer dsl services ranges from 256 kilobits per second kbits to 24,000 kbits, depending on dsl technology, line conditions and service level implemented. Asymmetric digital subscriber line adsl, featuring faster download speeds than. Apr, 2018 digital subscriber line, xdsl benefits over dialup service, hdsl, sdsl, idsl, isdn dsl, vdsl, adsl, rate adaptive dsl, radsl, etc. Digital subscriber lines dsls are highspeed internet connections that use. Tr348 hybrid access broadband network architecture pdf. Understanding digital subscriber line technology assia.
Understanding digital subscriber line technology thomas starr, john m. Focus on adsl focuses on asymmetric dsl, providing details on how this technology works. Dsl also referred to as xdsl, adsl, hdsl, or radsl uses a much higher bandwidth for transmitting information than the oki fax product is capable of understanding. Find out how dsl uses extra bandwidth to provide a. Before connecting the device, understand how the operating system and. Digital subscriber line dsl technology enables highspeed digital transmission on. Typically, upload speed is lower than download speed for asymmetric digital subscriber line adsl and equal to download speed for the rarer symmetric. As technology develops, new words are entering the english language every day and its hard to keep up. To understand the ways data rates can be increased beyond vdsl rates, and. Digital subscriber line simple english wikipedia, the.
Enter your mobile number or email address below and well send you a link to download the. In telecommunications marketing, the term dsl is widely understood to mean asymmetric digital subscriber line adsl, the most commonly installed dsl technology, for internet access. Download understanding digital subscriber line technology pdf book author, online pdf book editor understanding digital subscriber line technology. It is important to note that digital subscriber line dsl internet service uses traditional phone lines for your internet connection.
Understanding digital subscriber line technology thomas. Discusses frequency division multiplexing which forms the foundation for the operation of several types of high speed digital subscriber line. Note xdsl is the generic term for the high speed digital communication technology with telephone line such as adslhdslsdslvdsl. Digital subscriber line simple english wikipedia, the free. Covers the entire dsl family, from isdn at 144 kbs to vdsl at 52 mbs details dsl at all layers of protocol, with special emphasis on the physical layer discusses applications from both provider and enduser points of view gives an insiders view of the telecommunications standards process key.
What is dsl digital subscriber line dsl digital subscriber line is a special service that allows digital data to be delivered to a computer using a normal telephone line. This is achieved by using the frequencies not being used by. Digital subscriber line 2001 international engineering. Dsl technology overview dsl overview digital subscriber line dsl is a broadband access technology that enables highspeed data transmissions over the existing copper telephone wires local loops that connect subscribers homes or offices to their local telephone company central offices cos. Dsl digital subscriber line digital subscriber line or digital subscriber loopdsl is a type of highspeed internet technology that enables transmission of digital data via the wires of a telephone network.
Dsl digital subscriber line is a modem technology that uses existing telephone lines to transport highbandwidth data, such as multimedia and video, to service subscribers. Welcome to the new digizen websitethe digizen website provides information for educators, parents, carers, and young people. Understanding voice over internet protocol voip m atthew d e s antis, uscert this paper discusses the advantages and disadvantages of using voip services, focusing primarily on security issues that may affect those who are new to voip. Digital subscriber line brief introduction youtube. Asymmetric digital subscriber line adsl is a type of dsl technology that provides greater bandwidth and provides higherspeed transmission over traditional copper telephone wires than conventional voice band modem. 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. To understand the ways data rates can be increased beyond vdsl rates, and achieve 100 mbps. In 1991, at the age of 35, cioffi took a leave of absence from stanford to found amati communications corporation. An earlier technology, high data rate dsl hdsl, requires two twisted pairs. His and his students research into discrete multitone modulation dmt became widely adopted in digital subscriber line dsl technology, used commonly for internet access. Digital subscriber line, xdsl benefits over dialup service, hdsl, sdsl, idsl, isdn dsl, vdsl, adsl, rate adaptive dsl, radsl, etc. A good overview of single line dsl technology can be found in books by starr et al.
Understanding voice over internet protocol voip m atthew d e s antis, uscert. Get your kindle here, or download a free kindle reading app. Cordeschi n and pelizzoni c 2007 minimization of download times for large files over wireless channels, ieee transactions on mobile computing, 6. Understanding digital subscriber line technology starr, thomas, cioffi, john m. Digital subscriber line dsl technology transmits data over phone lines without interfering with voice service. Best known as the father of dsl, cioffis pioneering research was instrumental in making digital subscriber line dsl technology practical and has led to over 400. Covers the evolving high speed network access via digital subscriber line, cable modems and wireless communication.
Understanding digital subscriber line technology, volume 1. While both dsl and dialup internet leverage existing telephone lines, dsl uses a frequency that allows calls and data to be transfered at the same time without interference allowing for users to both talk on their phone and use the internet. Definition of information and communication technology. Information and translations of digital subscriber line in the most comprehensive dictionary definitions resource on the web. Because most home users download significantly more than they upload, this type of connection is sufficient. Apr 30, 2018 asymmetric digital subscriber line adsl is a type of dsl technology that provides greater bandwidth and provides higherspeed transmission over traditional copper telephone wires than conventional voice band modem. This allows for filesharing, and the transmission of pictures and graphics, multimedia data, audio and video conferencing and much more. Digital subscriber line digital subscriber line access multiplexer.
Asymmetric digital subscriber line access service adsl connection to the internet that allows for download speeds that are greater than the upload speeds. Understanding digital subscriber line technology pearson. Digital subscriber line, or dsl, was one of the original broadband technologies to get highspeed internet to the premises. Dsl technology achieves broadband speeds over the most universal network media in the world. Digital subscriber line is a technology that assumes digital data does not require change into analog form and back.
Digital subscriber lines an overview sciencedirect topics. Adsl is a technology used to provide a digital highspeed internet access line over a. For that reason, the total data rate of 1 gbps is the combined rates of download and upload speeds. Digital subscriber line dsl is currently the most widespread technique for delivering broadband. Understanding digital subscriber line technology guide books. Understanding and engineering multiplayer internet games armitage, grenville, claypool, mark, branch, philip on. Jan 04, 2017 digital subscriber line dsl is a technology that transports highbandwidth data over a simple telephone line that is directly connected to a modem. John cioffi born november 7, 1956 is an american electrical engineer, educator and prolific inventor who has made contributions in telecommunication system theory, specifically in coding theory and information theory.
It also offers a comprehensible explanation of issues in this growing field to managers, marketing experts, and consumers of dsl technology. Common types of dsl are symmetric digital subscriber line sdsl, with matching. Adsl is characterized by high speeds and always on connectivity. The comprehensive resource on digital subscriber line technology. The false promise of technology in the classroom and how learning can be saved by todd oppenheimer and. Dsl uses digital technology to bring highbandwidth information over ordinary copper. Leading experts in the field have come together to share their insights in a single volume, explaining the past, present. Digital subscriber line dsl is a last mile service that allows consumers to access the internet by using their existing telephone lines. Justifiably, understanding computer terminology can be daunting, but it neednt be impossible. It is like information technology, but ict focuses more on. When shopping for highspeed internet, youll likely come across these three types. Overview adsl can transmit more than 6 mbps to a subscriberenough to provide. Assuming no prior knowledge of the field, it presents an overview of the role of communications, their importance, and the fundamental concepts of using the isos 7layer approach to present the various aspects of networking.
Typically, a home user uses an asymmetric digital subscriber line adsl, in which the download speed is faster than the upload speed. Digital subscriber line dsl linkedin learning, formerly. Pdf understanding digital subscriber line technology book. About the tutorial more commonly known as future proof, fiber to the home ftth is a new technology to deliver a communication signal over optical fiber. With the rapid growth of xdsl technology many people feel confused by what exactly. Digital subscriber line is a family of technologies that are used to transmit digital data over. The intend of this paper is to alleviate some of the uncertainty by explaining what the terms. The comprehensive resource on digital subscriber line technology corporation, paradyne on. Download and donkey books online, epub pdf online audible kindle is an easy way to born, books for discordant. Dsl provides dedicated, pointtopoint, public network access.
Langlois, university of new hampshire interoperability laboratory. Definition of digital subscriber line in the dictionary. A guide to understanding analog fax in digital environments. Read, highlight, and take notes, across web, tablet, and phone. Pdf understanding digital marketingbasics and actions. Definition of digital subscriber line digital subscriber line dsl definition and diagram telecom industry dictionary is a free tool to get technical definitions and lookup industry terms from more than 11,000 terms, acronyms, and definitions. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the. Digital subscriber line technology is a copperloop transmission technology that solves the bottleneck problem often associated with the last mile between network service providers and the users of those network services. With its inside track and extensive level of detail, understanding digital subscriber line technology will be indispensable to telecom and datacom engineers at every level. Pdf understanding digital subscriber line technology. Intel, understanding wifi and wimax as metroaccess solutions. Network architecture, deployment problems and technical solutions vladimir krsti, mirjana stojanovi institut mihajlo pupin, beograd i introduction one of the most talkedabout areas in the telecommunications industry today is digital subscriber line dsl technology. Voice over internet protocol voip is a form of communication that allows you to make phone. Apr 19, 2019 asymmetric digital subscriber line adsl.
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