Abstract This paper provides an explanation of the DSL technology and its common variations. The hardware components are explained in both descriptive and illustrative form. The paper shows several illustrations giving examples on how the technology can be used. A discussion on the various businesses that would use DSL and the unique advantages and disadvantages, is presented.
Introduction
DSL Technology and Terminology
ADSL
SDSL
HDSL
IDSL
VDSL
Hardware Components of Digital Subscriber Lines - xDSL
Home Use / Small LAN
Other xDSL Standards
DSL Supplier Equipment
DSL Illustrations
Business Applications for xDSL
Summation
Works Referenced
From the Paper "In the current generation of internet connection service technologies available DSL or Direct Service Line is one of the most popular and most viable for a large number of different applications. DSL, in a very general sense, utilizes existing telephone lines to create a direct digital connection to the DSL providers substation where it shares in a guaranteed bandwidth (the size of the bandwidth is determined by pricing structures) on T1 and T3 lines owned or rented by the DSL company. Unlike cable, DSL is not affected by shared traffic. The guarantee of bandwidth means for a consistent connection speed and thus greater predictability of system load and use over the long term. DSL is available at both home and business speeds and has roughly 54% of the broadband consumer market 18.7 million subscribers worldwide, as compared to 11 million cable subscribers ("TeleChoice White Paper Challenges Inaccurate Assumptions about DSL", 1)."
Abstract Two of the options available for inter-company communications are ISDN (Integrated Serial Digital Networks) and DSL (Digital Subscriber Lines). Both have advantages and disadvantages inherent to their design. This paper discusses the pros and cons of utilizing either option and points out the various specialized uses available for both.
Abstract This paper looks at various types of Internet connections including Dial-up, Ethernet, Cable, T1 Line Communications, and DSL. It discusses the characteristics and functions of each. It compares which connection is most suitable for specific needs - personal or office use etc.
Table of Contents
Ethernet
Overview
How Ethernet Works
Advantages
Disadvantages
Setting up Ethernet
Dial-up Modems
How Dial-up Modems Work
Dial-up Modem Advances
Dial-up Modem Standards
Cable Modems
How Cable Modem Works
Cable Modem Standard
Advantages of Cable
Disadvantages of Cable
Digital Subscriber Line
Advantages of DSL Features of DSL DSL vs. Dial-up
DSL vs. ISDN
DSL vs. Cable
Computer requirements for DSL Disadvantages of DSL T1 Communications Line
Characteristics of T1 Line Communications
How T1 Communications Work
Conclusion
Works Cited
From the Paper "Ethernet Overview
Ethernet is the most common way of networking today. Today's Ethernet networks are 10BaseT or 100BaseT, which allows data to pass at 10-100 Megabits per second. Ethernet is a good system because it has stood the test of time, it is easily available and it offers flexibility.
How Ethernet Works
When one Ethernet station transmits all of the stations in the medium hear the transmission. Today the Ethernet refers to both Ethernet implementation and the IEEE 802.3 standards. Ethernet devices attach to a common medium for the electronic signals to pass through. Today, twisted pair or fiber-optic cabling are the most common cables used. The stations or nodes communicate in short messages called frames. In the Ethernet the destination address is the most critical to identify who will receive the frame."
Abstract This paper provides an overview of how DSL technology works, looks at the differences between ADSL (assymetric DSL) and DSL, describes which situations both technologies are more suited for, explains the vast applications of DSL technology and then takes a look at some of the shortcomings of DSL technology.
From the Paper "On May 24, 1844 Samuel Morse-inventor of the telegraph-relayed the first message ever sent electronically: "What hath God wrought!" (Reynolds 9). Clearly, Morse comprehended some of the implications this momentous achievement suggested. It is unlikely, however, that anyone fully grasped what the future would hold for communications. From the telegraph to the telephone to the internet, it appears that man-not God-demands ever progressive technologies to exchange ideas and information with those distanced from him. "This long history of technical innovation in communications ultimately brought forth an era of inexpensive high-speed data services." (Reynolds 9)."
Abstract This paper briefly discusses the different Internet connection technologies available, as well as the ISPs, and analyzes them in the context of their merits and demerits. The connections discussed are dial-up connections, DSL connections, cable connections, and ISDN connections.
From the Paper "The Internet has been around for quite some time now and the technology has evolved from its infancy where primarily it was used for information exchange and research purposes towards a more comprehensive medium, which caters to education, entertainment and business. Today an email address has become a mundane thing and the Internet has invaded virtually every conceivable domain of interest. Technology has developed considerably to cater to the demands of the bandwidth hungry web medium giving us a wide variety of choice right from the basic dialup service to high speed broadband and even dedicated internet connections. The ever-increasing scope of the web has created a rat race with the different Internet service providers vying with each other to maximize their share in the market. However all this bandwidth jargon has a confounding effect and even people who use the Internet extensively have a rather poor idea of the different technologies involved."
Abstract This paper explains that WiMAX specializes in point-to-multi-point broadband wireless access corresponding to the fixed wireless version, which is currently being deployed, and the mobile version, which is in varying stages of development and deployment. The author points out that WiMAX proposes challenges to providers of DSL and cable-modem service because its design can accommodate varying ways to transmit data including voice over internet protocol (VoIP). The paper concludes that, if WiMAX continues to find viable needs and fills them, it will enable faster than average speeds, in infinite locations. The paper includes a table and many embedded quotations.
Table of Contents:
Introduction
Technology
History
Comparing Types
Conclusion
From the Paper "Fixed wireless application began back in time with the microwave radio, and has been universally utilized "since the 1940s as a wireless alternative to (wired) private line services." Grabianowski and Brain relate the historical concept of WiMAX in basic terms with the scenario of two computers utilizing "walkie-talkie technology," with each computer being equipped with a walkie-talkie and being capable of transmitting and receiving. Each computer would also be able to "its binary 1s and 0s into two different beeps that the walkie-talkie could transmit and receive and convert back and forth between beeps and 1s/0s."'
Abstract The writer of this paper shows how Broadband is a way to explain how the Internet will embark from the traditional online connection into the freeway of the information system, the combination of digital and fiber optic technology. The paper studies the history of Broadband, its uses and advantages and its use in today's Internet world. Finally, the paper shows - graphically too - the part that broadband will play in the future, both from the Internet and business points of view.
From the Paper "Compared to dial-up modem, the broadband technology could do it much faster, in seconds. Cable modem, wireless, and DSL provides around ten times faster connections compared to dial-up modem, in any capacity the modem has. With the use of cable modem, such large-filed applications like games and movies can also be viewed and played through the original speed and convenience. It is also possible to do the download, browsing, and checking email click-by-click at the same time without any frustrating trouble of logging in and disconnecting from the ISP."
Abstract This essay examines the high-speed communication network. The author investigates the use of and demand for broadband network services, its advantages and disadvantages, the technologies used in providing broadband services and the growing need for this technology.
From the Paper "Traditionally, large corporations or government departments used broadband network services. They used to avail these services by means of ISDN or high speed T1 or T3 lines. However, with the advancement in information technology, a number of high technology services are becoming wide spread. Although, general consumers still do not have direct access to high-speed networks but several service providers are delivering less costly and high-speed services to the general consumers. They are using the cable technology for this purpose. In addition to this, some new entrants in the market are also offering more advanced services to the general consumer such as the Digital Subscriber Line."
Tags:DSL, cable, digital, high, speed, network, service, communication
Abstract SBC Communications Inc. is one of the world's leading data, voice, and Internet service providers. This paper discusses the company's marketing strategies, which it implements to keep its place in the very competitive communications market. It also looks at the future of the company.
From the Paper "By direct internet marketing and a new email switch program, SBC feels they will get a higher rate of return than direct mail, cold calling and other marketing tools used in the past to get customers to switch to SBC. Although not a part of the internet scenario, SBC does still maintain an open community program, English to Spanish marketing approach, new single bill multiple service approach to billing and many other marketing tools geared to create customer satisfaction."
Abstract This paper explains that networking is the process of moving information via computers rather than via any other medium such as paper media or face-to-face communication. The author stresses that, as in the case with larger networks, there are security risks associated with home networks, especially with "always on" broadband Internet services, such as DSL and cable modems. The paper states that, although most people do not think of the Internet as a network, the largest and most global network is the Internet. It is the most wide-reaching and revolutionary type of network that exists today.
Table of Contents
Introduction
Home Networks, Intranets, and the Internet
Home Networks
The Internet
Intranets
From the Paper "A home network essentially allows individuals to link together all of the computers in their home. A home network can allow a family to save money on multiple peripherals such as printers and fax machines and allow the family to access all of the computers and software stored within the computers linked in the household. In addition, ?one of the most compelling reasons to set up a home network is that everyone can be on the Internet at the same time.?"
Abstract Within the last decade, the internet has gained tremendous popularity as a media of communication, information and business. With this popularity has also come a desire for reliable, high-speed, inexpensive, and continuous service from an Internet Service Provider (ISP) to homes and businesses. The paper shows that for home users today that want fast service, continuous connectivity and a reliable connection, a cable modem connection or one of several variations of a Digital Subscriber Line (DSL) is the method of choice. The paper questions which choice is most advantageous for the home user by showing that each type has its advantages and disadvantages. It also shows that several factors to be considered are an analysis of the purpose of the connection, inherent limitations in the two different systems, price of installation as well as recurring monthly fees, the speed of the connection, and any problems that are solved or created by the choice of system.
From the Paper "Each of these types of systems has limitations. The most obvious being that not every home is wired for cable television. Even for those that do have cable television, unless they are on a system that has been modified from years past, they still will not be able to use their cable connection for connecting to the Internet. Originally cable networks were designed to only transmit data in one direction. Unless the system you can connect through has been converted, you may not be able to use a cable modem."
This paper discusses the use of the telecommunication system Integrated Services Digital Network or ISDN in households and business, which has increased since its proposal in the mid 1980s.
Abstract This paper explains that Integrated Services Digital Network (ISDN) differs from the traditional form of telecommunications, namely the phone line, in that it is the reverse of standard telephone service provisioning. The author stresses that the ISDN should not be viewed as a task of communications but rather as a business solution; having verified that the ISDN service provider supports the desired features, the network designer must select the ISDN equipment and services, which support the company's business requirements. The paper relates that ISDN faces competition with such services as DSL and cable modems, which have been able to provide 10 to 20 times the bandwidth for a cheaper price; however, the one area that other services cannot beat is the voice services.
From the Paper "ISDN brought the "third wave of internetworking to corporations and consumers." What the third wave meant is that ISDN was able to bring networks to small remote offices, individuals who telecommute and those who work from, and those who just want quicker Internets service for personal use. One downside to using ISDN is that it charges for time used. If it is used extensively, than it is more cost effective to lease a separated phone line. Also, network managers who may use ISDN need "to understand that ISDN is not always deployed to the letter of the standards set forth by the International Telecommunications Union (ITU)." "
Abstract This paper describes BellSouth. The author discusses the issues facing the company. The paper points out the way an effective marketing campaign would support the company's tactical and strategic goals.
From the Paper "BellSouth Corporation is a communications services company that serves over ... million local long distance Internet and wireless customers in the United States and other countries. It is a Fortune .... communications services company headquartered in Atlanta, Georgia. BellSouth provides a variety of voice, broadband, data and e-commerce solutions to business customers. In the residential market, it offers digital subscriber line, DSL high-speed Internet access, advanced voice features and other services. BellSouth also provides online and directory advertising service. BellSouth owns approximately ...percent of Cingular Wireless, the nation's second ..."
Abstract This paper forms a business requirement analysis of the Starbucks corporation. The objectives of this business requirements analysis are to define an online catalog system for Starbucks that includes m-commerce (mobile e-commerce) capabilities. This business requirements analysis evaluates both the use cases and requirements of the catalog management system for the Starbucks website, Starbucks.com, and also further evaluates the integration and infrastructure requirements for supporting m-commerce.
Contents:
Executive Summary
Business Requirements Analysis
Use Cases for Catalog Sales Management
Use Cases for Real-time Price, Availability, and Order Status
Technology Project Plan
Starbucks Solution Plans: Catalog Management must include e-Commerce System (includes Order Capture, Order Status, Order Management, and m-commerce Integration)
From the Paper "AMR Research (2003) has stated that fully 70% of the cost of implementing a catalog management system is in changing the behaviors of existing users. Called change management, this area focuses on getting both users internal and external to the company to change how their jobs are done daily.
The internal stakeholders of sales, product management, service, operations, software engineering, and all other support services need to have a comprehensive understanding of the entire launch process first for the catalog management system they will use to sell their specific products. In fact these organizations need to be included in the development processes and cross-functional development meetings so the needs not only for their own departments but also to enable them to synchronize their efforts with others are critical.
For customers, the launch of the new catalog has to stress ease and speed of navigation and the ability to get real-time pricing and availability on any order, anytime. The need for education is the most critical, and the ability to position and promote both catalog management, e-commerce including order capture, and order management applications. "
Tags:DSL, store, configurations, distribution, locations, product, catalogue, server, XML
