nds: Desirable and Available CONTENTS 9.3.5 Multiple Access to a Communication Satellite 9.3.6 Earth Station Link Engineering 9.3.7 Digital Communication by Satellite 9.3.8 Very-Small-Aperture Terminal (VSAT) Networks Fiber-Optic Communication Links 9.4.1 Applications 9.4.2 Introduction to Optical Fiber as a Transmission Medium 9.4.3 Types of Optical Fiber 9.4.4 Splices and Connectors 9.4.5 Light Sources 9.4.6 Light Detectors 9.4.7 Optical Fiber Amplifiers 9.4.8 Wavelength Division Multiplexing 9.4.9 Fiber-Optic Link Design Coaxial Cable Transmission Systems 9.5.1 Introduction 9.5.2 Description 9.5.3 Cable Characteristics 9.6 Transmission Media Summary Review Exercises References Chapter 10 Data Communications Chapter Objective The Bit-A - Review 10.3 Removing Ambiguity: Binary Convention 10.4 Coding 10.5 Errors in Data Transmission 10.5.1 Introduction 10.5.2 Nature of Errors 10.5.3 Error Detection and Error Correction dc Nature of Data Transmission 10.6.1 dc Loops 10.6.2 Neutral and Polar dc Transmission Systems Binary Transmission and the Concept of Time 10.7.1 Introduction 10.7.2 Asynchronous and Synchronous Transmission 10.7.3 Timing 10.7.4 Bits, Bauds, and Symbols 10.7.5 Digital Data Waveforms Data Interface: The Physical Layer Digital Transmission on an Analog Channel 10.9.1 Introduction 10.9.2 Modulation-Demodulation Schemes 10.9.3 Critical Impairments to the Transmission of 10.9.4 Channel Capacity CONTENTS 10.9.5 Modem Selection Considerations 10.9.6 Equalization 10.9.7 Data Transmission on the Digital Network 10.10 What Are Data Protocols? 10.10.1 Basic Protocol Functions 10.10.2 Open Systems Interconnection (OSI) 10.10.3 High-Level Data-Link Control: A Typical Link-Layer Protocol Review Exercises References Chapter 11 Enterprise Networks I: Local Area Networks What Do Enterprise Networks Do? Local Area Networks (LANs) 11.3 LAN Topologies 11.4 Baseband LAN Transmission Considerations Overview of ANSI/IEEE LAN Protocols 11.5.1 Introduction 11.5.2 How LAN Protocols Relate to OSI 11.5.3 Logical Link Control