Fundamentals of Digital Switching

Note that the principles of the elements described above may in one form or another provide for the switching of ... Introduction to Digital Switching 4.1. Digital What? Digital switching is merely the switching of digital signals.

Author: John C. McDonald

Publisher: Springer Science & Business Media

ISBN: 9781468444391

Category: Computers

Page: 432

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The development of low-cost digital integrated circuits has brought digital switching from a concept to an economic reality. Digital switching systems have now found worldwide acceptance and there are very few new switch ing systems being considered either for design or application which are not digital. Digital technology has created new opportunities for innovation including the integration of digital transmission and switching, the combi nation of voice and data services in one switching entity, and the design of switching systems which are economical over a broad range of sizes. In the strict sense, the term "digital switching" refers to a system which establishes a message channel between two terminations where infor mation is represented in digital form. In more common usage, a digital switch usually contains a time-divided network composed of logic gates and digital memory to accomplish the switching function. The intent of this book is to provide an introductory level explanation of the principles of digital switching. These principles apply to both public and PABX switching. The book is aimed at those who apply, design, main tain, or simply wish to understand digital switching techniques. An electri cal engineering degree is definitely not required for comprehension. We have concentrated on explaining digital switching techniques without the use of detailed mathematics. However, each chapter contains a comprehen sive list of references which will lead the reader to sources for a more in-depth study of the many subjects covered.

Fundamentals of Digital Switching

Since the publication of the first edition of Fundamentals of Digital Switching in 1983, there has been substantial improvement in digital switching technology and in digital networks.

Author: John C. McDonald

Publisher: Springer Science & Business Media

ISBN: 9781468498806

Category: Technology & Engineering

Page: 490

View: 691

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Since the publication of the first edition of Fundamentals of Digital Switching in 1983, there has been substantial improvement in digital switching technology and in digital networks. Packet switching has advanced from a low-speed data-oriented switching approach into a robust broadband technology which supports services ranging from low-speed data to video. This technology has eclipsed the flexibility of circuit switching. Fiber optic cable has advanced since the first edition and has substantially changed the technology of transmission. to research in optical devices to find a still better means of This success has led switching. Digital switching systems continue to benefit from the 100-fold improvement in the capabilities of semiconductor devices which has occurred during the past decade. The chip industry forecasts a similar escalation in complexity during the next 10 years. Networks of switching systems have changed due to regulatory policy reform in many nations, including the breakup of the Bell System in the United States, the introduction of new types of carriers in Japan, competition in the United Kingdom, and a reexamination of public policy in virtually all nations. Standards bodies have been productive in specifying new capabilities for future networks involving interactive and distributive services through STM and A TM technologies.

Fundamentals of Telecommunications

Once the reader grasps these concepts, the ideas and notions of digital switching will be much easier to understand. First, the operation of the original step-by-step switch is described. This is followed by a discussion of the crossbar ...

Author: Roger L. Freeman

Publisher: John Wiley & Sons

ISBN: 9780471720935

Category: Technology & Engineering

Page: 720

View: 138

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The Second Edition of this critically-acclaimed text continues the standard of excellence set in the first edition by providing a thorough introduction to the fundamentals of telecommunication networks without bogging you down in complex technical jargon or math. Although focusing on the basics, the book has been thoroughly updated with the latest advances in the field, including a new chapter on metropolitan area networks (MANs) and new sections on Mobile Fi, ZigBee and ultrawideband. You’ll learn which choices are now available to an organization, how to evaluate them and how to develop strategies that achieve the best balance among cost, security and performance factors for voice, data, and image communication.

100 Years of Telephone Switching

1-5 [ 3 ] A.A. Collins , R.D. Pederson , A Time for Innovation , Merle Collins Foundation , 1973 , 184 pp . [ 4 ] J.C. McDonald , Fundamentals of Digital Switching , Plenum , 1983 , 417 pp . [ 5 ] H. Falk , Chipping in to Digital ...

Author: Robert J. Chapuis

Publisher: IOS Press

ISBN: 1586033727

Category: Computers

Page: 596

View: 161

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Explores both the technology and marketing decision-making in a world-wide industry where product purchasers represent long-term decisions. This book deals with the mainstream switching systems required for the public network. It is about the history of core switching systems and signaling.

Digital Communication

K. Cattermole, Principles of Pulse-Code Modulation, Iliffe Books Ltd., London England, 1969. J. C. McDonald, Fundamentals of Digital Switching, Plenum Press, New York, 1983. J. G. Pearce, Telecommunications Switching, Plenum, New York, ...

Author: John R. Barry

Publisher: Springer Science & Business Media

ISBN: 9781461502272

Category: Technology & Engineering

Page: 838

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This book concerns digital communication. Specifically, we treat the transport of bit streams from one geographical location to another over various physical media, such as wire pairs, coaxial cable, optical fiber, and radio. We also treat multiple-access channels, where there are potentially multiple transmitters and receivers sharing a common medium. Ten years have elapsed since the Second Edition, and there have been remarkable advances in wireless communication, including cellular telephony and wireless local-area networks. This Third Edition expands treatment of communication theories underlying wireless, and especially advanced techniques involving multiple antennas, which tum the traditional single-input single-output channel into a multiple-input multiple-output (MIMO) channel. This is more than a trivial advance, as it stimulates many advanced techniques such as adaptive antennas and coding techniques that take advantage of space as well as time. This is reflected in the addition of two new chapters, one on the theory of MIMO channels, and the other on diversity techniques for mitigating fading. The field of error-control coding has similarly undergone tremendous changes in the past decade, brought on by the invention of turbo codes in 1993 and the subsequent rediscovery of Gallager's low-density parity-check codes. Our treatment of error-control coding has been rewritten to reflect the current state of the art. Other materials have been reorganized and reworked, and three chapters from the previous edition have been moved to the book's Web site to make room.

Planning and Architectural Design of Integrated Services Digital Networks

M. Decina, A. Roveri, "ISDN (Integrated Services Digital Network) Architectures and Protocols, in Advanced Digital Communications", Ed. K. Feher, 1987, pp. 40132. J. McDonald, (Ed), "Fundamentals of Digital Switching", Plenum Press, ...

Author: A. Nejat Ince

Publisher: Springer Science & Business Media

ISBN: 9781461522331

Category: Technology & Engineering

Page: 491

View: 781

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Planning and Architectural Design of Integrated Services Digital Networks: Civil and Military Applications provides a comprehensive treatment of ISDNs: how to plan and design them architecturally and how to implement them so that they meet certain given user requirements ranging from a variety of service demands to transmission performance, security, reliability/availability, capability for growth, interoperability with other ISDN and non-ISDN networks and, of course, cost. The book concentrates on the application of ISDN concepts and standards to the planning and design of real costed networks to meet certain specified user requirements. Where there are multiple options, considerations and rationale on the choice of network aspects and standards are discussed. The unique feature of the book, compared with other books on ISDN, is that it expounds an original methodology which starts from an assumed or given set of complete user requirements and proceeds to designing a complete network taking into account the technology and standards of ISDN, as well as some constraints including cost which may be imposed. Planning and Architectural Design of Integrated Services Digital Networks describes computer-aided design tools employed for dimensioning the network for various traffic loads and for assessing its traffic carrying performance for assessing different precedence categories and network configurations, transmission conditions and routing algorithms which may be static-deterministic or dynamic-adaptive. Aspects such as surveillance and control, security, survivability and EMP protection are also addressed. Planning and Architectural Design of Integrated Services Digital Networks: Civil and Military Applications is an excellent reference source and may be used as a text for advanced courses on the subject.

Digital Communication

K. W. Cattermole, Principles of Pulse Code Modulation, Iliffe Books Ltd., London England (1969). J. C. McDonald, Fundamentals of Digital Switching, Plenum Press, New York (1983). J. G. Pearce, Telecommunications Switching, Plenum, ...

Author: Edward A. Lee

Publisher: Springer Science & Business Media

ISBN: 9789400913035

Category: Technology & Engineering

Page: 713

View: 280

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This book concerns digital communication. Specifically, we treat the transport of bit streams from one geographical location to another over various physical media, such as wire pairs, coaxial cable, optical fiber, and radio waves. Further, we cover the mul tiplexing, multiple access, and synchronization issues relevant to constructing com munication networks that simultaneously transport bit streams from many users. The material in this book is thus directly relevant to the design of a multitude of digital communication systems, including for example local and metropolitan area data net works, voice and video telephony systems, the integrated services digital network (ISDN), computer communication systems, voiceband data modems, and satellite communication systems. We extract the common principles underlying these and other applications and present them in a unified framework. This book is intended for designers and would-be designers of digital communication systems. To limit the scope to manageable proportions we have had to be selective in the topics covered and in the depth of coverage. In the case of advanced information, coding, and detection theory, for example, we have not tried to duplicate the in-depth coverage of many advanced textbooks, but rather have tried to cover those aspects directly relevant to the design of digital communication systems.

Report of the Administrator

Central Office Equipment – TE & CM 323 , “ Fundamentals of Digital Techniques and Switching ” , was completed during the year . This new section details the basic aspects of digital technology as well as the more complex process of ...

Author: United States. Rural Electrification Administration

Publisher:

ISBN: MINN:31951D00708627U

Category: Electricity in agriculture

Page:

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Automatic digital switching technician AFSC 29570

... of your time to self - study of a CDC to improve your performance as an automatic digital switching technician . ... Automatic Digital Switching Technician , is to furnish you with the information that fulfills the fundamentals of ...

Author:

Publisher:

ISBN: MINN:31951002924650Z

Category:

Page:

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