This new edition of this popular text focuses on telecommunication systems and services, predominantly in a business context. The contents provide concise, accessible and non-mathematical coverage of scientific and technical principles of telecommunication, their application in the wide variety of telecommunication
services available and the functional characteristics of these services. Over 50% of the text relates to business services, and the strategic issues they raise. The text is therefore ideally suited to all HND and degree courses for which students need to have an understanding of the technological background to
modern methods of telecommunication and the criteria that underpin intelligent business decisions.
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A BASIC PRINCIPLES 1 Telecommunication systems
Line system characteristics
Radio system characteristics
32 other sections not shown
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a.c. waveform amplitude analog signal antenna attenuation band bandwidth basic binary BISDN cable miles called carrier wave carry CCITT Centrex channel common channel signalling communications complete conductors connected cost countries decimal designed developed devices dialling digital exchanges DQDB node ducts economic electronic equipment frequency frequency modulation inlets Inmarsat Intelsat ISDN kbit/s layer leased line Mbit/s mobile modulating signal multiplexing noise operator optical fibre ordinary OSI model outlets PABX packet switched pair PCM systems possible private network protocol PSTN public network pulse radio received reed relay routed samples satellites selector shown in fig sideband standards stations subscribers supplementary services Telecom telecommunications telephone exchange teletex telex terminal traffic transmission transmitted usually Viewdata virtual private network voice circuits voltage wire