demultiplexer
Noun
Meaning
demultiplexer (plural demultiplexers)
(computing, electronics) A device or piece of software used to separate signals that were previously combined using a multiplexer.
Phrases with the word
Examples
A multiplexer is often used with a complementary demultiplexer on the receiving end.
An inverse multiplexer differs from a demultiplexer because the multiple output streams from the former stay inter-related, whereas those from the latter are unrelated.
Note that, as with multiplexers, links are often used in bi-directional pairs and, at either end of the link, an inverse multiplexer will be combined with its reverse (an inverse demultiplexer) and still be called an inverse MUX.
One use for multiplexers is cost saving by connecting a multiplexer and a demultiplexer together over a single channel (by connecting the multiplexer's single output to the demultiplexer's single input).
Because all the phone (and data) lines have been clumped together, none of them can be accessed except through a demultiplexer.
Often, a multiplexer and demultiplexer are combined together into a single piece of equipment, which is usually referred to simply as a "multiplexer".