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A demultiplexer is an electronic device that separates a multiplex signal into its component parts. It is used when a circuit wishes to send a signal to one of many devices.

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A demultiplexer is an electronic device that separates a multiplex signal into its component parts. It is used when a circuit wishes to send a signal to one of many devices.

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Demultiplexing, or separating several previously multiplexed signals.

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A demultiplexer is the opposite of a multiplexer. In electronic devices, a demultiplexer is a logical circuit which takes a single input and sends out this input to one of several outputs available. During this process the output that has been selected is assigned the value 1, while the other outputs are assigned the value 0. The definition is slightly different when we are talking about demultiplexers in the context of networking. In the networking context, a demultiplexer is a device that receives multiple signals that have been transmitted on one line and then decodes these single line signals into separate multiple signals. A demultiplexer is usually always used in tandem with a multiplexer. Demultiplexers can be analog demultiplexers or digital demultiplexers. Digital demultiplexers generally function as decoders.

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They find use in Clock demultiplexer,Security monitoring system,Synchronous data transmission system

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synchronization between the multiplexer and demultiplexer is a major issue in data transmission. if the multiplexer and demultiplexer are out of synchronization a bit belonging to one channel may be received by the wrong channel. for dis reason , one or more synchronization bits are usually added to the beginning of each frame. these bits, called framing bit , follow a pattern, frame to frame, that allow the demultiplexer to syncronize with the incoming steam so that it can separate the time slots accurately. in most cases, this syncronization information consists of one bit

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