索书号：TN91/D639(2) (MIT)
The essential guide to telecommunications
Contents
Part I fundamentals
- Basic concepts
Analog and digital
Bauds bits bytes and codes ----- getting down to basics
Bandwidth----- measuring capacity
Compression and multiplexing
Lans mans and wans
- Telephone systems and cabling
Telephone systems----- from stand-alone to connected telephones
Add-on sales to key systems, pbxs and centrex systems
Lan/pbx/acd connectivity to enhance productivity
Media: fiber and unshielded twisted pair copper
Part II
- Industry overview
The bell system prior to and after 1984
Competitive access providers (caps) to competitive local exchange carriers (clecs)
Resellers
- Local competition and the telecommunications act of 1996
Local competition prior to the telecommunications act of 1996
Regulations prior to the telecommunications act of 1996
Factors leading to passage of the telecommunications act of 1996
The telecommunications act of 1996
Summary
- The public network
Switched services----- local and long distance calling
Dedicated services
Network intelligence and signaling
Part III
- Advanced technologies the internet convergence and wireless
Specialized network services
Voice or data paths over one telephone circuit
The capacity of 28 T-1 lines 672 channels
Isdn----- integrated services digital network
Digital subscriber line technology
Frame relay- a shared wide area network service
ATM- ASYNCHRONOUS TRANSFER MODE
Sonet- synchronous optical network
- Modems and access devices
Transferring data from computers to telephones lines
Dce- connections to telephone lines
Modems-
Analog telephone lines with digital devices
Nt1s- connecting devices to a digital line
Csu/dsus- connecting devices to digital line
Cable modems – using cable TV facilities for data communications
Cable TV set-top boxes
- The internet
The history of the internet
The world wide web----- linking and graphics
E-mail----- computers that send store and receive messages
Privacy on the world wide web
Internet service providers and portals
Internet addresses
Electronic commerce and advertising on the web
Web congestion----- world wide wait
Intranets----- impact of web technology with customers partners and vendors
Security on the world wide web----- establishing trust
Conclusion----- reliability security and capacity
- Convergence
Savings on carriers’ networks
Technical advances leading to improvements in ip networks
Examples of converged networks
Applications for convergence
Summary
- Wireless services
Historical background of mobile and cellular services
Cellular telephone service----- advanced mobile phone services（AMPS）
Pcs----- personal communications services
Cellular vendors
Smart devices for internet and remote access
Called party pays----- an impediment to cellular usage
Wireless for local telephone service
Cellular services for data communications
Specialized mobile radio ----- originally for voice
Paging services
Low earth orbiting satellite networks (LEOs) middle earth orbiting satellites (MEOs)
Time division multiple access and code division multiple access
- Glossary
- bibliography
Abstract
With this book, you will get an understanding of telecommunications----- even if you have no technical background at all. in this revised best seller, leading consultant Annabel Z.Dodd teaches you everything you must know to understand the telecommunications industry. You will fide up-to-the-minute coverage of today’s hottest technologies.