The Ultimate Modem Handbook: Your Guide to Selection, Installation, Troubleshooting, and Optimization - Softcover

Lewart, Cass R.

Softcover

ISBN 10: 0138494150 ISBN 13: 9780138494155

Publisher: Prentice Hall, 1997

Synopsis

The purpose of the book is to educate the reader in technical aspects, recent developments, applications and features of one of the most important and versatile data communications devices -- the modem. The book guides the communication professional as well as the average PC to make cost-effective purchasing decisions by selecting intelligently between types and features of modems, communications software and on-line services. The book will then help users to install, maintain and troubleshoot modems. This book will provide all the answers.

About this title

From the Author

Explantion of basics and latest developments in data communi
I am an electrical engineer and I wrote this 426-page book to introduce the PC user to the theory and practice of modems and data communications. The book will bring you up to date on both the basics, such as Nyquist and Shannon theorems, and on the latest developments - 56K modems, ISDN, ADSL, cable modems and much more. The book includes a CD with a modem test program and a search engine with database of Usenet news groups. For additional information check the Publisher's Web page or contact the author at rlewart@injersey.com. Table of Contents: Preface Introduction Part 1 - Modems and Data Communications 1. Introduction to Data Communications Why Do We Need Modems Basic Data Communications Terms Public Telephone Network (PSTN) OSI Model of the Data Network Deregulation of the Telephone Industry 2. How Fast Will That Modem Go Basic Limitations - Nyquist and Shannon Measures of Transmission Rate - Baud, Bits and Bytes 3. Modulation Techniques Amplitude Modulation Frequency Modulation Phase Modulation Constellation Diagrams Quadrature Amplitude Modulation Trellis Modulation Susceptibility to Error Computing Bit Error Rates 4. Data Communications Protocols ITU-T V. Series Standards Birth of a Standard High Speed Saves Money Data Compression and Error Detection Current Standards for Data Transmission Current Standards for Fax Transmission MNP Protocols 5. Asynchronous and Synchronous Transmission Start, Stop and Data Bits in Asynchronous Transmission Synchronous Transmission Hardware Considerations 6. The Serial Interface RS232-C Serial Interface Connecting an External Modem to a Serial Port Connecting Two Computers With Null Modem Serial Interfaces Other Than RS232-C Interface Converters Comparison of UART Chips Part 2 - Modems for the Personal Computer User 7. Selecting the Right Modem Built-In or External Modem? Fax Modem Other Features to Choose From How Well Will My Modem Work 8. Modem Installation Modem Preparation Plugging it All Together Data and Fax Letting the Computer Know About the Modem Letting the Software Know About the Modem Monitoring the Modem With a Simple Circuit 9. Talking to the Modem Modes of Operation Making the Modem Listen Flow Control AT Commands - Basic, Extended and Proprietary S Registers 10. Data Communications Software Terminal Emulation Software Facsimile and OCR Software Internet Browsers Voice Communication Software on the ISP Server File Transfer Protocols Zip and Unzip Encode and Decode Data Encryption 11.Connecting to the World Bulletin Boards Specialized Services Sales and Telecommuting Internet - The World Listens and Talks to You 12. A Look Inside a Modem - Modem on a Chip Basic Characteristics of the RC Chip Set Functional Description of the RC Chip Set Modem Chip Set Interfaces Modem Building Blocks Complete Modem Mathematical Modem Simulation AT Commands accepted by the Rockwell Chip Set Part 3 - Specialized Modems 13. Commercial Voice Band Modems Historical Perspective PSTN and Private Line Equalization Signaling and Battery Options Listing of Commercial Voice Band Modems 14. ISDN, Cable, LAN, Wireless, Cellular and 56K Modems ISDN Modems - Setting Up an ISDN Connection Cable Modems - Promises and Reality LAN Modems Wireless Modems Cellular Modems What Makes Those 56K Modems Tick 15. Short Haul Modems Limited Distance Modems AC Modems for Control Applications Part 4 - Testing and Troubleshooting 16. Testing and Troubleshooting of Modems and Their Interfaces Modem Indicator Lights Use of &T Commands for Self-Testing Modem Testing With Specialized Equipment Testing RS232-C Signals With a Break-Out Box Modem Test Software Specific Problem Troubleshooting 17. Transmission Facility Testing Attenuation Distortion Measurements Delay Distortion Measurements Noise Measurements Phase Jitter Measurements Eye Pattern Testing Specialized Transmission Measuring Sets Part 5 - Look Into the Future 18. What Will The Future Bring Better Subscriber Loops, ADSL Network Growth Killer Applications and More Power on the Desktop Network Computer - PC versus NC Glossary Appendices A1 Modem Related URLs A2 List of Modem Manufacturers A3 ASCII Table Index

From the Back Cover

The expert guide to choosing, using and troubleshooting modems!

In the age of the Internet, modems are more important than they've ever been. But they're still more mysterious than they ought to be. In Modems in the Information Age, a professional communications engineer explains everything you need to know to select, install and troubleshoot modems.

Discover:

• How 56K modems work: Will your phone line support them?
• ISDN, cable, cellular, and wireless modems: How to choose and use them
• How to set your modem up right the first time
• Tips on streamlining modem installation and setup
• How to speed up Internet browsing
• Select Usenet newsgroups with included software

Modems in the Information Age provides detailed, step-by-step guidance on modem testing and troubleshooting. Learn what those modem indicator lights mean, how to use the testing capabilities of the AT command language, and how to test serial ports. The book comes with sophisticated modem test software, and simple instructions on how to use it.

Understand every category of communications software-including terminal emulators, fax and OCR software, Internet browsers, voice communications software, FTP, compression, encoding and decoding, and even encryption. If you're a communications professional, you'll also find invaluable coverage of specialty modems, including commercial voiceband, wireless, and short haul modems.

Ever wondered just how modems work? You're in the right place. Lewart explains the theory of modems, demonstrates the theoretical and practical limits on their performance-and takes a close look at the chipset at the heart of today's most popular modems.

You can't make the most of modem technology if you don't understand it. No matter who you are, Modems in the Information Age will make you a smarter modem buyer, and a more effective modem user.

Edition details

• Publisher: Prentice Hall
• Publication date: 1997
• ISBN 10: 0138494150
• ISBN 13: 9780138494155
• Binding: Paperback
• Language: English
• Number of pages: 426