What is a Multiplexer | Data Selector Information | MUX/DEMUX/IMUX

The Key Components Of A Multiplexer

The multiplexer, sometimes referred to as a data selector or mux, is a device used in electronics. The equipment is able to take one of several input signals, digital or analog, and forward it to one line. This is often used to increase the total supply of data that can be transferred through a network over a set amount of time or bandwidth.

These devices works by allowing multiple signals to share a single device or resource. The demultiplexer, also known as demux, uses a single input signal. It also takes one of many several data-output lines connected to the single input. Typically, these devices are used together with demux placed on the receiving end.

Mux and demux are alike and different. While mux function as a multiple-input, single-output device, demux are considered the single-input, multiple-output device. Mux are identifiable through their symbol. The schematic symbol has an isosceles trapezoid on it with long and short parallel sides. On the long side, there are input pins, and on the short side, there is a single output pin.

Multiplexers are often used within the telecommunications field. Within this field, they serve as the equipment that connects multiple input data signals into one output signal that is able to carry several communication channels. This is possible through a process called the multiplex technique. Demux can take the single input signal and carry that over many channels, spreading it over multiple output signals. There are different variations of mux used in telecommunications, such as time-division, statistical, and frequency-division.

This equipment can help cut costs. By connecting demux and mux, over one channel, there are costs savings. To elaborate, the cost of implementing channels for every data source may be pricey. In contrast, utilizing mux and demux systems can cut out some of those expenses making it less expensive. Generally these two devices are combined into on piece of equipment, which is called a multiplexer. There exist digital demux and mux.

These structures can link together. For example, several small mux devices are capable of being chained together to create a large multiplexer. Similarly, using one two-to-one mux and two four-to-one multiplexers, an eight-to-one mux can be constructed.

Mux may be used as a PLD, or programmable logic device. The custom logic circuits are formed by assigning the logic arrangement of the input signals. The selector inputs are then set as logic inputs. This method is particularly useful when the goal is modularity and cost efficiency.

Typically this type of equipment is needed in the fields of computer technology and telecommunications, Overall, they allow the sharing of expensive resources. Imux, better known as inverse multiplexing, serves the alternate function of multiplexing. The inverse method is designed to separate one data stream into multiple data streams. It then transfers that over several communication channels. Finally, it recreates the original data stream. Multiplexing comes in many forms: code division, time division, frequency division and space division. Even within these categories, there are many variations. Multiplexing is possible on a wireless communication. It is done using polarization, phased multi-antenna array, or multiple-input, multiple-output schemes.

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