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.
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