Multiplexers and demultiplexers are used at which ends of communication systems respectively?

Multiplexers and demultiplexers are fundamental components in communication systems, serving distinct purposes at different stages of the communication process.

1. Multiplexers (MUX): These devices are used at the sending end of a communication system. Their primary function is to combine multiple input signals into a single output signal. This process allows for the efficient transmission of data over a single channel, reducing the required bandwidth and enabling the simultaneous transmission of multiple signals.

2. Demultiplexers (DEMUX): On the receiving end, demultiplexers perform the reverse operation of multiplexers. They take a single input signal and distribute it into multiple output signals. This allows the receiver to separate and access the individual signals that were combined and transmitted from the sender.

In summary, multiplexers are utilized at the transmission end to consolidate multiple signals into one, while demultiplexers are employed at the receiving end to unpack and distribute those signals back to their original forms. This pairing enhances the efficiency and effectiveness of communication systems, allowing them to handle multiple data streams seamlessly.