What is the Communication Media or Communication Channels? Types of media?

What is the Communication Media or Communication Channels? Types of media?

Communication Media or Communication Channels

Communication media or communication channels are those media through which data can be sent or travelled from one place to another place in the communication network.

Types of media:

Communication Media two types

i) Bounded Media (Cable communication)

1 . Twisted pair

  1. Coaxial cable
  2. Optical fiber

ii) Unbounded Media (Wireless communication)

  1. Radio wave
  2. Microwave
  3. Wireless

Twisted Pair Cable:

In twisted pair cable communication two copper wires are twisted. The wires are separated by covering them insulated plastic materials (casing or jacket).

Types:

  1. UTP (UnshieldedTwisted Pair)
  2. STP (Shielded Twisted Pair)

Advantages:

1.Available in local market.

2.Low price.

3.Easy to installation.

Disadvantages:

1.Low bandwidth (kbps-mbps)

2.Short distance communication. (maximum 100 meter)

Applications: Telephone line, LAN etc.

Coaxial Cable:

In coaxial cable communication a single heavy copper wire is used. The wire is covered with insulated plastic foam. Then a net of wires are used to surround the plastic insulation. Finally a heavy plastic casing or jacketĀ  is used to protect the inner two layers from external harm.

Types:

  1. Thinnet coaxial cable (light and flexible with low bandwidth)
  2. Thicknet coaxial cable (heavy and non-flexible with high bandwidth)

Advantages:

1.Available in local market.

2.Medium price.

3.Medium bandwidth. (mbps-gbps)

Disadvantages:

1.A bit costly.

2.Medium distance communication. (maximum 1 k.m)

Applications: Cable TV line, MAN etc.

 

Optical Fiber Cable

 

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