Data communications : a user's guide / Ken Sherman.

Format:

Book

Author/Creator:

Sherman, Kenneth.

Language:

English

Subjects (All):

Computer networks.

Data transmission systems.

Physical Description:

xxv, 597 pages, 1 unnumbered folded leaf of plates : illustrations (some color) ; 24 cm

Edition:

Third edition.

Place of Publication:

Englewood Cliffs, N.J. : Prentice Hall, [1990]

Summary:

Now in its third edition, the widely used Data Communications: A User's Guide continues to provide a thorough and practical introduction to the world of data communications from the user's point of view. Written at an introductory level for those who need a real-world, practical, comprehensive look at the data communications field, all information is presented in a nontechnical, conversational tone to facilitate easy understanding.

Recently updated with feedback from both industry and student sources, this text has the right mix of depth and clarity necessary to explain the basics of data communication and to incorporate them with the concepts of new services such as local area networks, packet switching, network architectures, and satellites.

Contents:

1 Background of Data Communications and Terminology 1

A. Background 1

B. History of Communications 2

C. History of Computers 5

2 Basics of Information Flow 7

A. Background and Overview 7

B. Simple Circuit Composition 9

C. Telegraph Equipment 12

D. Baudot Equipment and Teletypes 14

E. Modern Network Connections 22

3 Carriers, Services, and Regulations 23

A. Types of Carriers 26

B. Types of Service 35

C. Regulatory Agencies 37

D. Tariffs 38

E. Interconnection and Certification 41

F. Carrier Systems 44

G. Open Network Architecture (ONA) 46

H. Special Network Services 47

I. Documentation 50

J. Canadian Carriers and Services 52

4 Communications Media 59

A. Elementary Communications Theory 59

B. Communications Conductors 62

C. Other Considerations 72

D. AT&T Premises Distribution System/IBM Cabling System 74

5 Interfaces 83

A. Background 83

B. Loop Current 83

C. RS/EIA232 and MIL-STD-188 85

D. RS449, RS422, RS423, and EIA530 94

E. CCITT International Interfaces 100

F. Data Access Arrangements 108

G. PBX Interfaces 108

H. Automatic Call Unit (ACU) 111

I. Other Interfaces 114

6 Circuit Types and Their Uses 117

A. Background 117

B. Point to Point 119

C. Multipoint/Multidrop or Multistation 119

D. Dial Network 121

E. Dedicated 121

7 Data Codes 123

A. Background 123

B. Code Sets and Purpose: Baudot, BCD, EBCDIC, ASCII, and Others 125

C. Control Codes 131

D. Format Effectors 134

8 Synchronous and Asynchronous 136

A. Background 136

B. Asynchronous Transmission 137

C. Synchronous Transmission 138

D. Other Related Factors 147

9 Protocols 150

A. Background 150

B. Half Duplex 153

C. Full Duplex 156

D. Full/Full Duplex (SDLC) 156

E. Half-Duplex/Full-Duplex Comparisons 166

F. ARQ Half-Duplex Protocols 168

G. Flow-Control Protocols 171

H. PC Protocols 172

I. Modem Protocols 176

J. Protocol Conversion 179

K. Dial-Up and Dedicated Handshaking 182

10 Modems and Modulation 189

A. Background 189

B. Distance versus Transmission Rate Considerations 190

C. Signal Shapes 193

D. Analog Modes of Modulation: AM, FM, PM 196

E. Multibit Modulation 198

F. Modem Considerations 211

G. Other Modem-Related Equipment 219

H. Circuit Devices and Operation 224

I. Autodial Modems 227

J. Other Transmission Mechanisms 231

11 Multiplexers 236

A. Background 236

B. Basic Theory 238

C. Phantom Circuit 239

D. Frequency-Division Multiplexing 239

E. Time-Division Multiplexing 240

F. Intelligent/Statistical Multiplexers 243

G. T-1 Multiplexer 248

12 Other Network Hardware 252

A. Background 252

B. Concentrators 253

C. Message Switches 255

D. Communications Front Ends 258

13 Data Transmission Integrity, Forward Error Correction, Compression, Encryption 262

A. Background 262

B. Echo Checks 264

C. Parity Checks: VRC, LRC, BCC, Checksum 265

D. Cyclic Redundancy Check (CRC) 268

E. Forward Error Correction: Hamming, BCH, Convolutional, Block 271

F. Data Compression Techniques 275

G. Encryption 281

H. Integration of Functions 288

14 Voice and Data Switching 290

A. Terminology 291

B. Key Systems 293

C. PBX Equipment Generations 296

D. Analog to Digital Conversion (CODECs) 297

E. PBX 302

F. PBXs versus LANs 307

G. Data Switches 311

15 Local Area Networks (LANs) 315

A. Background and Overview 315

B. Topologies 316

C. Standards 319

D. Bandwidth 321

E. Operational Characteristics 322

F. Interconnection 341

G. Other Types of LANs 343

H. Fiber Distributed Data Interface 346

16 The Digital World with ISDN 349

A. Background 349

B. The Digital Circuit 350

C. Equipment 354

D. Digital Services 357

E. T-1 361

F. ISDN-Integrated Services Digital Network 370

17 Packet Switching 384

A. Concept and Description 384

B. Interfaces 390

C. Operation 395

18 Network Architectures 408

A. Background 408

B. Open Systems Interconnect (OSI) 409

C. Systems Network Architecture (SNA) 416

D. Other Network Architectures 427

E. Systems Application Architecture 434

F. MAP/TOP 435

G. Transmission Control Protocol/Interface Protocol (TCP/IP) 439

H. The Future 442

19 Satellites, Video, Radio, Facsimile, and Microwave 445

A. Satellites 445

B. Video 457

C. Cellular Radio 461

D. Facsimile 463

E. Microwave 464

20 Communication System Transactions, Applications, and Formats 467

A. Background 467

B. Inquiry/Response (I/R) 467

C. Record Update (R/U) 468

D. Data Entry (DE) 468

E. Data Collection (DC) 469

F. Message Switching 469

G. Process Control (PC) 470

H. Command and Control (CC) 470

I. Batch 470

J. Diagnostics 471

K. Distributed Applications 471

L. Formats 476

21 Transmission Bandwidths and Impairments 486

A. Background 486

B. Channel Bandwidth and Frequencies 487

C. Transmission Impairments 487

D. Error Rates and Their Measurement 495

E. Line Conditioning and Equalization 497

22 Network Management and Control 502

A. Background 502

B. Concept 503

C. Access Interface Devices 506

D. Test Equipment Configurations 509

E. Test Standards 514

F. Analog Signal Parameters 515

G. Digital Signal Parameters 518

H. Digital Information Parameters 520

I. Test Equipment 521

J. Test Sequences for Problem Isolation 526

K. Backup and Alternative Procedures 532

L. Vendor-Provided Network Management Facilities 534

M. Telephone System Management 539

23 Design Considerations 542

A. Centralization versus Decentralization 542

B. Design Requirements 545

C. Response Times 546

D. Capacity/Throughput 552

E. Network Modeling 556

24 System Implementation and Support 558

A. Background 558

B. Documentation 559

C. Procedures 561

D. Standards 562

E. Personnel 562

F. Vendor Interfacing 564

Appendix A. Organization Addresses 567

Appendix B. Data Communications Reference Texts 568.

Notes:

Bibliography: page 568.

Includes index.

ISBN:

0131990926 :

OCLC:

19628442