In this article we will discuss Multiplexing, will make brief discussion on Multiplexing, In last article we discuss about SONET.

In telecommunications and computer networks, multiplexing is a method by which multiple analog or digital signals are combined into one signal over a shared medium. The aim is to share a scarce resource. For example, in telecommunications, several telephone calls may be carried using one wire.

Multiplexing is a popular networking technique that integrates multiple analog and digital signals into a signal transmitted over a shared medium. Multiplexers and de-multiplexers are used to convert multiple signals into one signal. The very purpose of Multiplexing is clearly understood in its definition only – Multiple analog signals or digital data streams are ‘combined into one signal’ over a shared medium. i.e To reduce the number of electrical connections/Wireless Channels for transmission of several signals.

There are mainly two types of multiplexers, namely analog and digital. They are further divided into Frequency Division Multiplexing (FDM), Wavelength Division Multiplexing (WDM), and Time Division Multiplexing (TDM).

  • Frequency division multiplexing.
  • Wavelength division multiplexing.
  • Time division multiplexing.

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