串行端口 Serial port
（重定向自Serial line）
串行接口（Serial port）又称「串行端口」，主要用于串行式逐位数据传输。常见的有一般电脑应用的RS-232（使用 25 针或 9 针连接器）和工业电脑应用的半双工RS-485与全双工RS-422。
Serial line
中文百科
英语百科
Serial port 串行端口
（重定向自Serial line）
In computing, a serial port is a serial communication interface through which information transfers in or out one bit at a time (in contrast to a parallel port). Throughout most of the history of personal computers, data was transferred through serial ports to devices such as modems, terminals and various peripherals.
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