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| Preface | |
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| Acknowledgements | |
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| Fundamental Concepts | |
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| Communications System Components | |
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| Line Connections | |
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| Types of Service and Transmission Devices | |
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| Transmission Mode | |
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| Transmission Techniques | |
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| Types of Transmission | |
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| Line Structure | |
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| Line Discipline | |
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| Transmission Rate | |
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| Transmission Codes | |
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| Error Detection and Correction | |
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| Standards Organizations, Activities and the OSI Reference Model | |
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| The Physical Layer: Cables, Connectors, Plugs and Jacks | |
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| The Data Link Layer | |
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| Integrated Services Digital Network | |
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| Review Questions | |
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| Networks and Internetworking | |
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| Circuit Switched Networks | |
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| Packet Switching Networks | |
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| Local Area Networks | |
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| Wide Area Networks | |
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| Network Architecture and SNA | |
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| Internetworking | |
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| Review Questions | |
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| Data Transmission Equipment | |
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| Acoustic Couplers | |
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| Modems | |
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| Intelligent Modems | |
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| Multiport Modems | |
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| Multipoint Modems | |
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| Security Modems | |
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| Line Drivers | |
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| Limited-Distance Modems | |
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| Digital Service Units | |
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| Channel Service Units | |
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| Parallel Interface Extenders | |
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| Bridges, Routers, and Gateways | |
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| Review Questions | |
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| Data Concentration Equipment | |
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| Multiplexers | |
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| Group-band Multiplexers | |
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| T1 Multiplexers | |
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| Inverse Multiplexers | |
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| Packet Assembler/Disassembler | |
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| Concentrators and Front-end Processors | |
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| Modem- and Line-sharing Units | |
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| Port-sharing Units | |
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| Control Units | |
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| Port Selectors | |
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| Review Questions | |
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| Redundancy and Reliability Aids | |
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| Data Communications Switches | |
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| Line Restoral Units | |
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| Review Questions | |
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| Automatic Assistance Devices | |
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| Automatic Answering Units | |
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| Automatic Calling Units | |
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| Review Questions | |
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| Specialized Devices | |
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| Security Devices | |
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| Protocol Converters | |
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| Speech Plus Data Units | |
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| Voice Digitizers | |
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| Data Compression Performing Devices | |
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| Fiber Optic Transmission Systems | |
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| Review Questions | |
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| Integrating Networking Devices | |
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| Inverse Multiplexing with Multiport Modems | |
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| Network Integration Problems | |
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| Appendix A. Sizing Data Communications Network Components | |
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| A.1 Device Sizing | |
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| A.2 The Erlang Traffic Formula | |
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| A.3 The Poisson Formula | |
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| A.4 Applying the Equipment Sizing Process | |
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| Appendix B. Erlang Distribution Program | |
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| Appendix C. Poisson Distribution Program | |
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| Appendix D. Multidrop Line Routing Analysis | |
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| Index | |