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Asymmetric Digtal Subscriber Line (ADSL) use is one of the general Digital Subscriber Line (xDSL) techniques. While it has been around in the laboratory for about ten years, this particular technique has since shifted to the special evaluation site to the beginnings of consumer access. By the time this book is available, some mass provision of ADSL to the general consumer market will be available. | ADSL Standards Implementation and Architecture Table of Contents ADSL Standards Implementation and Architecture by Charles K. Summers CRC Press CRC Press LLC ISBN 084939595X Pub Date 06 21 99 Introduction Acknowledgments Chapter 1 Analog and Digital Communication 1.1 Communication Forms 1.1.1 Analog 1.1.2 Digital Transmission Coding 1.2 Transmission Media 1.2.1 Copper Wiring 1.2.2 Other Transmission Media 1.3 Switching and Routing 1.3.1 Basics of Switching 1.3.2 Circuit-Switches and Packet-Switches 1.3.3 Routers 1.3.3.1 LANs and WANs 1.3.3.2 Functions of the Router 1.4 Multiplexing 1.5 Infrastructure Limits 1.5.1 Distance Limitations on Local Loops 1.5.2 Loading Coils 1.5.3 Repeaters Amplifiers and Line Extenders 1.5.4 Bridged Taps 1.5.5 Digital Loop Carriers DLCs 1.5.6 Summary 1.6 Bottlenecks 1.6.1 Host I O Capacity 1.6.2 Access Line Capacity 1.6.3 Long-distance Line Capacity 1.6.4 Network Saturation 1.6.5 Server Access Line and Performance 1.6.6 Summary Chapter 2 The xDSL Family of Protocols ADSL Standards Implementation and Architecture Table of Contents 2.1 From Digital to Analog 2.2 Digital Modems 2.3 The ITU-T ADSL and ISDN 2.4 ADSL Standardization 2.4.1 Standards Bodies 2.4.2 ADSL Standards Bodies 2.4.2.1 ADSL Forum and UAWG 2.4.2.2 ANSI 2.4.2.3 ETSI 2.4.2.4 ITU-T 2.5 The xDSL Family of Protocols 2.5.1 56K Modems 2.5.2 BRI ISDN DSL 2.5.2.1 Physical Layer 2.5.2.2 Switching Protocol 2.5.2.3 Data Protocols 2.5.3 IDSL 2.5.4 HDSL HDSL2 2.5.4.1 Signaling Using Channel Associated Signaling 2.5.4.2 Signaling Using Primary Rate Interface ISDN 2.5.4.3 HDSL2 or SHDSL 2.5.5 SDSL 2.5.6 ADSL RADSL 2.5.7 CDSL ADSL lite 2.5.8 VDSL 2.6 Summary of the xDSL Family Chapter 3 The ADSL Physical Layer Protocol 3.1 CAP QAM 3.2 Discrete Multitone 3.3 ANSI T1.413 3.3.1 Bearer Channels 3.3.2 ADSL Superframe Structure 3.3.2.1 Fast Data and interleaved Data 3.3.2.2 Fast byte 3.3.2.3 Sync Byte and SC Bits 3.3.2.4 Indicator Bits 3.3.2.5 CRC Bits ADSL Standards Implementation and .