Multiplexing

 

The term “Multiplexing” or “Muxing” is one kind of technique for combining multiple signals like analog as well as digital into one signal over a channel

Muxing (or) multiplexing can be defined as; it is a way of transmitting various signals over a media or single line. A common kind of multiplexing merges a number of low-speed signals to send over an only high-speed link, or it is used to transmit a medium as well as its link with a number of devices. It provides both privacy & Efficiency.

The entire process can be done using a device namely MUX or multiplexer, and the main function of this device is to unite n-input lines for generating a single output line. Thus MUX has many inputs & single output. A device is called DEMUX or demultiplexer is used at the receiving end which divides the signal into its component signals. So It has a single input and a number of outputs.




  • The 'n' input lines are transmitted through a multiplexer and multiplexer combines the signals to form a composite signal.
  • The composite signal is passed through a Demultiplexer and demultiplexer separates a signal to component signals and transfers them to their respective destinations.

Advantages of Multiplexing:

  • More than one signal can be sent over a single medium.
  • The bandwidth of a medium can be utilized effectively.
Types:






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