Cover image for Data communications : an overview
Title:
Data communications : an overview
Author:
Sveum, Myron E.
Personal Author:
Publication Information:
Upper Saddle River, N.J. : Prentice Hall, [2000]

©2000
Physical Description:
xii, 352 pages : illustrations ; 25 cm
General Note:
Includes index.
Language:
English
ISBN:
9780130798626
Format :
Book

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Summary

Summary

This textbook covers a broad area with sufficient depth for a one-semester or two-quarter undergraduate course targeted at electronic technicians, electrical engineering technology, computer science, and computer information systems students. Includes more technical material than typical business ne


Table of Contents

1 Basicsp. 1
1.1 Frequently Asked Questions (FAQs)p. 1
1.2 History of Telecommunicationsp. 3
1.3 Standardsp. 5
1.4 Networksp. 9
1.5 Open Systems Interconnect Reference Model (OSI RM)p. 12
1.6 Virtual Communications between Equivalent Layersp. 16
Summaryp. 16
Questionsp. 17
2 Transmission Mediums and the Physical Layerp. 19
2.1 What Is the Physical Layer?p. 19
2.2 Twisted Pair (TP)p. 19
2.3 RS-232 and RS-422Ap. 22
2.4 Coaxial Cablep. 29
2.5 Fiber Opticsp. 31
2.6 Satellitesp. 42
2.7 Nyquist Channel Capacity Lawp. 47
2.8 Shannon-Hartley Channel Capacity Lawp. 48
2.9 Bit Rate versus Baud Ratep. 49
2.10 Troubleshootingp. 50
Summaryp. 56
Questionsp. 56
3 The Data Link Layer (DLL)p. 59
3.1 Data Link Layer Dutiesp. 59
3.2 Control Fieldp. 63
3.3 Upper Level Protocolsp. 64
Summaryp. 65
Questionsp. 65
4 Local Area Networks (LANs)p. 67
4.1 Introduction to LANsp. 67
4.2 Ethernetp. 69
4.3 Token Ring Network (TRN)p. 76
4.4 Token Busp. 84
4.5 High-Speed LANsp. 86
4.6 IEEE 802.2 versus ISO RMp. 89
4.7 Troubleshootingp. 91
Summaryp. 95
Questionsp. 97
5 Network Operating Systems (NOSs)p. 99
5.1 Network Operating Systems (NOSs)p. 99
5.2 PC without a NOSp. 100
5.3 PC with a NOSp. 100
5.4 Peer-to-Peer versus Client/Serverp. 100
5.5 NOS Functionsp. 100
5.6 NOS Vendorsp. 102
5.7 LAN Protocolsp. 103
5.8 NT Server versus NetWarep. 103
5.9 Testing and Troubleshootingp. 104
Summaryp. 105
Questionsp. 105
6 Lan Interconnectionp. 107
6.1 Why Interconnect LANs?p. 107
6.2 Repeaterp. 108
6.3 Bridgep. 108
6.4 Routers and Switchesp. 110
6.5 Gatewayp. 112
Summaryp. 112
Questionsp. 112
7 The Public Switched Telephone System (PSTN)p. 113
7.1 Public Switched Telephone System (PSTN)p. 114
7.2 How Is a Call Handled?p. 114
7.3 ATandT Systemp. 116
7.4 LATAs, IECs, IXCs, and LECsp. 116
7.5 CO-to-Telephone Connectionp. 116
7.6 Strowger Switch and the Rotary Dial Telephonep. 117
7.7 Dual Tone Multi-Frequency (DTMF)p. 119
7.8 Why Switch?p. 119
7.9 Parts of a Callp. 119
7.10 Per Trunk Signalingp. 120
7.11 Common Channel Interoffice Signaling (CCIS)p. 120
7.12 Switching Computersp. 122
7.13 Packet Switched Networks (PSN)p. 122
7.14 Echoesp. 123
7.15 PSTN Impairments, Testing, and Troubleshootingp. 123
Summaryp. 126
Questionsp. 128
8 Multiplexing and Codecsp. 129
8.1 Multiplexing, Why?p. 129
8.2 Analog versus Digital Signal Transmissionp. 134
8.3 Analog to Digital (A/D) and Digital to Analog (D/A) Conversionp. 135
Summaryp. 140
Questionsp. 141
9 Modulation and Modemsp. 143
9.1 Why Can't We Connect Our Computer Directly to the Phone Line?p. 144
9.2 Speed versus Bandwidthp. 144
9.3 Modulationp. 145
9.4 Phase Diagramsp. 150
9.5 Bit Rate and Baud Ratep. 150
9.6 Frequency Shift Keying (FSK)p. 150
9.7 Phase Shift Keying (PSK)p. 152
9.8 Transmission Impairmentsp. 156
9.9 Simplex, Half Duplex, Full Duplexp. 158
9.10 Testing and Troubleshootingp. 159
Summaryp. 160
Questionsp. 161
10 T Carrierp. 163
10.1 Why T-1?p. 164
10.2 Multiplexing and De-Multiplexingp. 164
10.3 T-1 Frame Formatp. 166
10.4 E-1p. 168
10.5 Alternate Mark Inversion (AMI)p. 168
10.6 Zero Substitutionp. 169
10.7 D-4 Framing Bitsp. 170
10.8 Costsp. 172
10.9 Testing and Troubleshootingp. 173
Summaryp. 174
Questionsp. 176
11 Integrated Services Digital Network (ISDN)p. 177
11.1 The Goal of ISDNp. 177
11.2 What Is ISDN?p. 177
11.3 Modifying the TP for ISDNp. 179
11.4 ISDN Historyp. 179
11.5 ISDN Typesp. 179
11.6 Connecting to ISDNp. 180
11.7 2 Binary--1 Quaternary (2B1Q)p. 181
11.8 ISDN Superframep. 182
11.9 Link Access Protocol over the D Channel (LAPD)p. 183
11.10 Broadband ISDN versus Narrowband ISDNp. 187
11.11 Testing and Troubleshootingp. 187
Summaryp. 188
Questionsp. 189
12 High-Speed Data to Office and Homep. 191
12.1 Why Are the Data Transfer Speeds to the Office and Home So Slow?p. 191
12.2 Cable Television Modemsp. 192
12.3 Asymmetric Data Subscriber Line (ADSL)p. 193
12.4 High-Speed Satellite Internet Transmissionsp. 194
12.5 Testingp. 195
Summaryp. 195
Questionsp. 196
13 Cellular Communicationsp. 197
13.1 Mobile Communications Problemsp. 198
13.2 United States Standardsp. 198
13.3 Frequency Modulation (FM)p. 200
13.4 Cellsp. 201
13.5 Frequency Reusep. 202
13.6 Mobile Telephone Switching Office (MTSO)p. 203
13.7 Handoffp. 205
13.8 Call Setupp. 206
13.9 Cellular Frequencies in the United Statesp. 207
13.10 N-AMPS (Narrowband AMPS)p. 208
13.11 Aloha Protocolp. 208
13.12 Interim Standard-54 (IS-54)p. 209
13.13 Global System for Mobile (GSM) Communicationsp. 213
13.14 Interim Standard-95 (IS-95)p. 215
13.15 Testing and Troubleshootingp. 218
Summaryp. 218
Questionsp. 220
14 Binary Synchronous Control (BSC), or Bisyncp. 221
14.1 BiSync Characteristicsp. 221
14.2 BiSync Frame Formatp. 222
14.3 BSC Transmission Examplep. 223
14.4 BSC Transmission with Error Examplep. 225
Summaryp. 225
Questionsp. 225
15 X.25 and Frame Relayp. 227
15.1 Why X.25?p. 228
15.2 Switchingp. 228
15.3 X.25 Facilities or Featuresp. 231
15.4 X.25 and Related Specificationsp. 232
15.5 X.25 and the OSI RMp. 232
15.6 X.25 Packet and LAP/B Framep. 235
15.7 Packet Headersp. 236
15.8 X.25 Calling Sequencep. 239
15.9 Link Access Protocol/Balanced (LAP/B)p. 240
15.10 Frame Relayp. 241
15.11 Frame Relay Testing and Troubleshootingp. 242
Summaryp. 244
Questionsp. 246
16 Asynchronous Transfer Mode (ATM) and Sonetp. 247
16.1 Why Asynchronous Transfer Mode (ATM)?p. 248
16.2 ATM Supports All Types of Digital Transmissionsp. 250
16.3 ATM Cell Formats (Types)p. 250
16.4 ATM Layersp. 252
16.5 SONET (Synchronous Optical NETwork)p. 255
16.6 SONET and SDHp. 255
16.7 SONET Modelp. 255
16.8 SONET Format and Overhead Portioningp. 256
16.9 Synchronous Payload Envelope (SPE) Synchronizationp. 258
16.10 ATM Testing and Troubleshootingp. 258
16.11 SONET Testing and Troubleshootingp. 260
Summaryp. 260
Questionsp. 262
17 SNA, TCP/IP, and Murphy's Lawp. 263
17.1 Murphy's Lawp. 263
17.2 TCP/IP versus SNAp. 264
17.3 Connectionless versus Connection Orientedp. 265
17.4 Relative Complexityp. 265
17.5 Advanced Peer-to-Peer Networking (APPN)p. 265
17.6 Final Thoughtsp. 266
Questionsp. 266
18 TCP/IP and the Internetp. 267
18.1 History of TCP/IP and the Internetp. 268
18.2 Purpose of the Internetp. 268
18.3 Datagramsp. 268
18.4 TCP/IP Layers versus the OSI RMp. 270
18.5 Data Flowp. 271
18.6 Layer Descriptionp. 271
18.7 TCP/IP Frame Structurep. 275
18.8 IP Headerp. 276
18.9 TCP Headerp. 277
18.10 IP Addressingp. 278
18.11 IP Connectionsp. 279
18.12 IP Domainsp. 279
18.13 Address Resolution Protocol (ARP)p. 279
18.14 Domain Name Service (DNS)p. 279
18.15 So What's on the Internet, and How Do We Find It?p. 280
18.16 World Wide Web (WWW)p. 281
18.17 Troubleshootingp. 281
Summaryp. 282
Questionsp. 284
19 Systems Network Architecture (SNA)p. 285
19.1 SNA Systems Network Architecture (SNA)p. 286
19.2 SNA Layersp. 287
19.3 SNA Network Examplesp. 287
19.4 SNA Hardwarep. 288
19.5 SNA Operating Systemsp. 290
19.6 Sessionsp. 292
19.7 Advanced Peer-to-Peer Network (APPN)p. 292
19.8 Bit Oriented Framingp. 292
19.9 Management and Troubleshootingp. 296
Summaryp. 297
Questionsp. 299
A1 Cyclic Redundant Code (CRC)p. 301
A1.1 CRC Mathematical Examplep. 301
A1.2 CRC Hardware Implementationp. 303
A1.3 How Good Is CRC?p. 303
A1.4 Problemsp. 303
A2 Decibels and Powerp. 305
A2.1 Decibelsp. 305
A2.2 dBm or Decibels Referenced to One Milliwattp. 306
A2.3 Final Commentsp. 309
A2.4 Problemsp. 309
A3 Queue Theoryp. 311
A3.1 How Many?p. 311
A3.2 Traffic Intensityp. 311
A3.3 Poission Distributionp. 313
A3.4 Erlang B and Erlang Cp. 313
A3.5 Problemsp. 326
A4 Fourier Seriesp. 329
A5 Wide Area Protocols (WAN)p. 335
A.5.1 Lower Level Protocolsp. 335
A.5.2 Upper Level Protocolsp. 338
A6 Data Communications Experimentsp. 339
Glossaryp. 341
Indexp. 351