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RS232\u7b80\u4ecb<\/h2>\n

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  RS232\u63a5\u53e3\u7279\u70b9<\/h3>\n

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  DB9\u8fde\u63a5\u5668\u7ed3\u6784<\/h3>\n

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DB9\u5b9a\u4e49<\/h2>\n

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  DB9\u8fde\u63a5\u5668\u5f15\u811a\u5b9a\u4e49<\/h3>\n

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  \u53d1\u9001\u6570\u636e (TX)<\/h4>\n

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  \u63a5\u6536\u6570\u636e (RX)<\/h4>\n

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  DB9\u8fde\u63a5\u65b9\u5f0f<\/h3>\n

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  \u8fde\u63a5\u7ebf\u8def\u9009\u62e9<\/h4>\n

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  \u9488\u811a\u8fde\u63a5\u987a\u5e8f<\/h4>\n

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\u603b\u7ed3<\/h2>\n

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