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Chapter: Computer Networks - Physical Layer

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Transmission media

Transmission media are actually located below the physical layer and are directly controlled by the physical layer.

Transmission media:

 

Transmission media are actually located below the physical layer and are directly controlled by the physical layer. Figure 1.26 shows the position of transmission media in relation to the physical layer.


A transmission medium can be broadly defined as anything that can carry information from a source to a destination.

 

In telecommunications, transmission media can be divided into two broad categories: guided and unguided. Guided media include twisted-pair cable, coaxial cable, and fiber-optic cable. Unguided medium is free space.



 

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