Multiplexer used in Multiplexing

In telecommunications and computer networks, multiplexing (also known as muxing) is a technique where multiple analog message signals or digital data streams are combined into one signal more than a shared medium. The goal is always to share a pricey resource. As an example, in telecommunications, several telephone calls may be carried one wire. The multiplexed signal is transmitted more than a communication channel, which might be a physical transmission medium. The multiplexing divides the capacity with the high-level communication channel into several low-level logical channels, one for each and every message signal or data stream to be transferred. A reverse process referred to as demultiplexing can extract the first channels about the receiver side. Multiplexing originated in telegraphy within the 1870s, and it is now widely applied in communications.

A device that performs the multiplexing is known as multiplexer (MUX), plus a device that performs the opposite process is called a demultiplexer (DEMUX). As an example, Video Multiplexer is a form of MUX which used in video multiplexing. And in electronics, a multiplexer (or mux) is really a device that selects one of the analog or digital input signals and forwards the chosen input right into a single line. A multiplexer of 2n inputs has n select lines, which are utilized to select which input line to deliver to the output. Multiplexers mostly are utilized to boost the level of data that can be sent within the network in just a specific amount of your time and bandwidth. A multiplexer is also known as a data selector. An electric multiplexer makes it possible for several signals to share with you one device or resource, as an example one A/D converter a treadmill communication line, as opposed to having one device per input signal.

A multiplexer is frequently used in combination with a complementary demultiplexer around the receiving end. A digital multiplexer can be considered like a multiple-input, single-output switch, and a demultiplexer as a single-input, multiple-output switch. The schematic symbol for a multiplexer is definitely an isosceles trapezoid with the longer parallel side containing the input pins as well as the short parallel side containing the output pin. The schematic on the right shows a 2-to-1 multiplexer around the left and an equivalent activate the best.

One use for multiplexers is financial savings by connecting a multiplexer plus a demultiplexer (or demux) together on the single channel (by connecting the multiplexer single output to the demultiplexer single input). The image off to the right demonstrates this. A Video+Data Multiplexer will help you about this work. In this instance, the expense of implementing separate channels for each repository is more epensive compared to the cost and inconvenience of supplying the multiplexing/demultiplexing functions. In the receiving end of the data link a complementary demultiplexer is normally required to break single data stream back into the original streams. In some cases, the far end system might have more functionality when compared to a simple demultiplexer therefore, as the demultiplexing still exists logically, it might never actually happen physically. This could be typical where a multiplexer serves a number of IP network users and then feeds directly into a router which immediately reads the content of the entire link into its routing processor and then does the demultiplexing in memory where it will likely be converted into IP sections.

Often, a multiplexer and demultiplexer are used together into a single device, which can be usually described simply as a multiplexer. Both items are required at both sides of the transmission link because most communications systems transmit both in directions. In analog circuit design, a multiplexer can be a special type of analog switch that connects one signal selected from the 3 major inputs with a single output. There are lots of kinds of Multiplexers in FiberStore, the best fiber optic network supplier in China.