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RS-422 和 RS485 标准概述与系统配置_英文
时间:2019-07-26
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ANSI TIA/EIA-422 and TIA/EIA-485 standards, commonly known as RS-422 and RS-485, respectively, specify balanced data-transmission schemes for transmitting data over long distances in noisy environments. These standards are compared, and their basic differences and similarities are discussed. Techniques for impedance matching to minimize line reflections in several applications are presented, with laboratory test results.
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