Activity 3.3.1 Utilities

1. Activity 3.3.1 Utilities Kurt Smith Trevor Brotz Mark Brooks Austin Nar Garrett Hanzek

2. Telecommunications:the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television. - Dictionary.com Telecommunications

3. The History of Telecommunications • 1200 B.C.- Homer mentions signal fires in his work, Illiad. • 700 B.C.-300 A.D.- Carrier Pigeons were used during the Olympic Games. • 1843- FAX invented by Scottish Physicist Alexander Bain. • 1876- Alexander Graham Bell invented the Telephone. • 1945- Arthur C. Clarke proposes communications satellites. • 1992- The World Wide Web is created.

4. Typical Sizing Requirements for Telecommunications • A TR serving less than • 5000 sq ft. must be at least 10' x 8' in size • A TR serving area larger than 5000sq ft. and less than or equal to 8000 sq ft must be 10' x 9' in size • A TR serving an are a larger than 8000 sq ft. and less than or equal to 10,000 must be 10'x 11' in size • A minimum of four 4 inch vertical riser conduits or sleeves are required between TR s.

5. Method of Measuring Usage of Telecommunications • Erlangs- help telecommunication network designers understand traffic patterns within their voice networks. • Are used to work out how many lines are required between a telephone system and a central office. • http://www.erlang.com/whatis.html

6. Providers and their Distribution Methods • Providers: Time Warner Cable, Vonage, Windstream, Verizon, AT&T, Sprint, Direct T.V. • Distrbution Methods: Satelites, telephone lines, cable lines, cell phone towers.