Unit 1- 1.3

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  • Created by: AK786
  • Created on: 17-10-16 18:24

Fibre Optic networking cable- 5 uses

-Medical (Used as light guides, lasers for surgery).

-Data storage (data transmission)

-The Internet (large amounts of data at high speeds therefore used in internet cables)

-Cable Television (Ideal for transmitting signals for HD TVs because they have greater bandwidths and speed).

-Telephone (calling abroad or within the country is easier a you can connect faster and have a clear conversation from both ends.

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Fibre Optic networking cable- 3 characteristics

-Uses light to transmit information rather than electrical signals.

-Not prone to electrical interference.

-works by a light signal being 'launched' at one end of the glass thread core. The light is reflected internally down the fibre until it reaches the other end.           Lightsensitive electronics then pick up the signal.

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Fibre Optic networking cable- Purpose

-Has much greater bandwidth than metal cables, therefore can carry more data faster.

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Fibre Optic networking cable- Justification, 3

-The thinner the fibre optic cable = better signal 

-The signal is transmitted through a glass rod or a core as a beam of light.

-Optical fibre transmission is uni-directional (one direction only), so you need at least 2 fibre optic cables to allow bidirectional (2 directions) transmission.

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Fibre Optic networking cable- Differences betwee

-Less bulky than fibre optic cables, lighter, more flexible and carry mores data.

-Can break easily as its fragile.

-More expensive that ordinary UTP network cable 

-Transmitter in router sends light pulses representing binary code. When the data is received, it is decoded back to its binary form and the computer displays the message.

-Interference from electronic devices isn’t a concern as it uses light.

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