Data Communications Networking Devices - 4th Ed.pdf

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To Beverly, Jonathan and Jessicafor their patience understanding and supportÐI love you allTo Dr Alexander Ioffe and family of MoscowÐcongratulations on next year in Jerusalem being eachyear!
CONTENTSPrefaceAcknowledgementsxxiiixxv1. Fundamental Wide Area Networking Concepts 11.1 Communications System Components 21.2 Line Connections 2Dedicated line 2Leased line 2Switched line 3Cost trends 4Factors to consider 41.3 Types of Services and Transmission Devices 5Digital repeaters 6Unipolar and bipolar signaling 6Other digital signaling methods 7Modems 7Signal conversion 7Acoustic couplers 8Signal conversion 8Analog facilities 9DDD 9WATS 10FX 11Leased lines 13Digital facilities 14Digital signaling 14Unipolar non-return to zero 14Unipolar return to zero 16Bipolar return to zero 16Evolution of service offerings 17AT&T offerings 18European offerings 20DSUs 201.4 Transmission Mode 22Simplex transmission 22Half-duplex transmission 22Full-duplex transmission 23Terminal and mainframe computer operations 25Different character displays 261.5 Transmission Techniques 27Asynchronous transmission 27Synchronous transmission 29
Page 3: Copyright # 1986, 1989, 1992, 1999
Page 7 and 8: CONTENTS __________________________
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Page 23 and 24: Data Communications Networking Devi
Page 25 and 26: 1.2 LINE CONNECTIONS ______________
Page 27 and 28: 1.3 TYPES OF SERVICES AND TRANSMISS
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1.8 LINE DISCIPLINE _______________
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1.9 NETWORK TOPOLOGY ______________
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1.10 TRANSMISSION RATE ____________
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1.11 TRANSMISSION CODES ___________
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1.12 ERROR DETECTION AND CORRECTION
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1.13 STANDARDS ORGANIZATIONS, ACTIV
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1.14 THE PHYSICAL LAYER ___________
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1.15 THE DATA LINK LAYER __________
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1.16 INTEGRATED SERVICES DIGITAL NE
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REVIEW QUESTIONS __________________
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Data Communications Networking Devi
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4.1 ACOUSTIC COUPLERS _____________
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4.2 MODEMS ________________________
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4.3 INTELLIGENT MODEMS ____________
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4.5 MULTIPOINT MODEMS _____________
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4.5 MULTIPOINT MODEMS _____________
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4.6 SECURITY MODEMS _______________
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4.7 LINE DRIVERS __________________
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4.8 LIMITED-DISTANCE MODEMS _______
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4.9 BROADBAND MODEMS ______________
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4.10 DIGITAL SERVICE UNITS ________
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4.11 CHANNEL SERVICE UNITS ________
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4.12 PARALLEL INTERFACE EXTENDERS _
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Data Communications Networking Devi
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