Website http://academy-khi.com/ <br />Facebook https://www.facebook.com/academykhi/ <br />Twitter https://twitter.com/academy_khi <br /> <br />Multiplexing <br />Multiplexing is a technique which allows sending multiple signals over a single data link. In simple words, Sharing of the medium between multiple signals. <br /> <br /> <br />Topic <br /> <br />What is Multiplexing (MUX)? <br />What is Demultiplexing? <br />MUX types. <br />FDM Frequency division MUX. <br />TDM Time division MUX. <br />WDM wavelength division MUX. <br />CDM Code division MUX <br /> <br />Demultiplexing <br /> <br />It is reverse order of mux. one into many patterns. <br /> <br />Multiplexer. It is a device that combines multiple signals into one signal. <br />Demultiplexer. It is a device that separates the multiplexed signal. <br /> <br />FDM Frequency Division Mux. <br /> <br />FDM is an analog multiplexing technique. Every input signal is modulated with a carrier frequency to change its characteristics (Frequency). <br /> <br />TDM Time division Mux. <br /> <br />TDM is a digital mux technique. Every transmitter is assigned a time slot to transmit its signal. We have already discussed its application in E1 and T1 lines. <br />Synchronous TDM <br />Asynchronous TDM <br /> <br />WDM Wavelength division mux. <br /> <br />It is an analog technique.It combines multiple wavelengths of an optical signal to transmit in a single optical fiber. We will discuss its application in DWDM topic. <br /> <br />CDM code division mux. <br /> <br />It is a mathematical technique.It does not use the physical properties of the signal. Every signal is assigned with a code to identify it.
