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- Дата: 9-11-2020, 12:03
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Автор: Dawoud Shenouda Dawoud, Peter Dawoud
Издательство: River Publishers
Год: 2020
Страниц: 534
Язык: английский
Формат: pdf (true)
Размер: 59.7 MB
Data communication standards are comprised of two components: The "protocol" and "signal/data/port specifications for the devices involved." The protocol describes the format of the message and the meaning of each part of the message. To connect any device to the bus, an external device must be used as an interface which will put the message in a form which fulfills all the electrical specifications of the port. These specifications are called the "Standard." The most famous such serial communication standard is the RS-232. In IT technology, communication can be serial or parallel. Serial communication is used for transmitting data over long distances. It is much cheaper to run the single core cable needed for serial communication over a long distance than the multicore cables that would be needed for parallel communication.