Table of Contents - Chapter 12

Long-Distance And Local Loop Digital Technologies


12.1 Introduction 177
12.2 Digital Telephony 177
12.3 Synchronous Communication 179
12.4 Digital Circuits, NIUs, And DSU/CSUs 180
12.5 Telephone Standards 181
12.6 DS Terminology And Data Rates 182
12.7 Lower Capacity Circuits 183
12.8 Intermediate Capacity Digital Circuits 183
12.9 Highest Capacity Circuits 184
12.10 Optical Carrier Standards 185
12.11 The C Suffix 185
12.12 Synchronous Optical NETwork (SONET) 185
12.13 The Local Subscriber Loop 187
12.14 ISDN 187
12.15 Asymmetric Digital Subscriber Line Technology 188
12.16 Other DSL Technologies 191
12.17 Cable Modem Technology 192
12.18 Upstream Communication 193
12.19 Hybrid Fiber Coax 194
12.20 Fiber To The Curb 195
12.21 Head-End And Tail-End Modems 195
12.22 Wireless Alternatives For Special Cases 196
12.23 Broadcast Satellite Systems 196
12.24 Summary 198
Exercises 199