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PEF 20471 E V1.3 application field and working principle

The PEF 20471 E V1.3 is a physical communication interface which enables transmission of data between different equipment. It has been designed to use in a variety of applications which require high speed data transfer in a secure way, including telecommunications, industrial automation, and process control. Therefore, it can be used in a variety of applications, from video surveillance systems and private radio network links to data communication systems in aerospace and marine systems.

The PEF 20471 E V1.3 is based on a controller area network (CAN) physical layer. CAN is a serial transmission protocol which facilitates two-way information exchange between two or more nodes in a communication network. CAN buses are used in electronic systems for communication between different electronic components or subsystems, such as controllers, actuators and power steering systems. Thus, it provides very reliable communication between nodes with low cost and high speed.

The physical layer is the electrical part of the interface, which can be used to transmit and receive digital signals, like binary 1s and 0s. It has features such as high speed data rates, low voltage levels and low power consumption. The physical layer provides the necessary electrical connections between the interface hardware and the interface medium. The physical layer is often the most critical part of the device, since it is responsible for ensuring that the interface meets the performance requirements of the device.

The data link layer is the layer which is responsible for transmitting, receiving, and formatting the data signals. It includes the link, media access control and flow control layers. The link layer is responsible for messaging and error control, while the media access layer determines when each node can access the medium. The flow control layer is responsible for speeding up or slowing down the data flow, and for error correction. The data link layer also communicates with the physical layer and thus ensures that the interface hardware and its components work properly.

At the transport layer, the data is formatted and transported using protocols such as the transmission control protocol (TCP) or the user datagram protocol (UDP). The transport layer is responsible for ensuring that the data is received in correct order and provides flow control. The transport layer is also responsible for error detection, correction, and retransmission.

Finally, the application layer is responsible for the application-specific functions such as authentication, authorization, data transfer, and messaging. It is the layer which enables the communication between the different pieces of equipment, and with the user interface. It is also the layer which enables the application to perform the desired functions, such as streaming audio or video.

Thus, the PEF 20471 E V1.3 is a reliable communication interface which enables high speed data transfer between different equipment in a secure way. It can be used in a variety of applications, from telecommunication to industrial automation, and provides reliable communication with low cost and high speed.

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