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RS—232C 接口标准是由美国电子工业协会于1969年向外界推荐的一种串行接口技术规约。它主要用于数据终端设备与数据通讯设备之间的二进制串行数据交换。
RS-232C interface standard by the United States Electronics Industry Association in 1969 to the outside world recommended a serial interface protocol. It is mainly used for binary serial data exchange between data terminal equipment and data communication equipment.