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Tele-Communication (Telecom) Terms Glossary and Dictionary
Multiplexer
A multiplexer, also known as mux or muldex, is a device that encodes information from two or more data sources (usually a power of two) into a single channel. The multiplexer has a single output, which has the same value as the selected data input. They are used in situations where the cost of implementing separate channels for each data source is more expensive than the cost and inconvenience of providing the multiplexing/demultiplexing functions.
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