Monday, 13 April 2015

What is Transmission medium and Why We use it in Networking

For transmission medium is the physical medium used for sending data over the network. Most existing networks currently used as a transmission medium coaxial cable or twisted pair wire cable and fiber optic cable. The wireless medium using radio waves, microwaves or infrared is also used, these media are slower than cable or fiber optics.

Or any physical medium that can carry information in the form of electromagnetic signals can be used in local area networks as the transmission medium.

Transmission lines are the backbone of the network, including information between nodes is transmitted. To make the transmission of information several techniques are used, but the most common are: baseband and broadband.

The different types of network: EtherNet, Token Ring, FDDI, etc. They can use different cable types and communication protocols.

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