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电子工程专辑
2 年
一文读懂RS-232、RS-422及RS-485串行数据标准的选择及使用
按照技术指标和电气接口有三种常见的串行数据标准:RS-232、RS-422和RS-485。本文将介绍电缆端接技术、多个负载的使用、RS-232菊花链连接、RS-232至RS-485的转换、RS-485至RS-232的转换,以及RS-232端口供电的RS-485转换。 引言 标准的奇妙之处在于有如此之多的选择,这 ...
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