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RS-232\u662f\u4e00\u79cd\u4f20\u7edf\u7684\u4e32\u884c\u901a\u4fe1\u63a5\u53e3\u6807\u51c6\uff0c\u901a\u5e38\u7528\u4e8e\u5728\u4e00\u5bf9\u4e00\u8fde\u63a5\u6a21\u5f0f\u4e0b\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002\u5b83\u4f7f\u7528\u975e\u5e73\u8861\u4f20\u8f93\u7ebf\uff0c\u901a\u4fe1\u8ddd\u79bb\u8f83\u77ed\uff0c\u5e76\u5bf9\u5e72\u6270\u8f83\u4e3a\u654f\u611f\u3002RS-232\u63a5\u53e3\u5e7f\u6cdb\u5e94\u7528\u4e8e\u8ba1\u7b97\u673a\u4e32\u53e3\u3001\u8c03\u5236\u89e3\u8c03\u5668\u3001\u6253\u5370\u673a\u7b49\u8bbe\u5907\u7684\u8fde\u63a5\u3002<\/p>\n
422\u548c232\u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b\u53ef\u4ee5\u4ece\u7535\u6c14\u7279\u6027\u3001\u4f20\u8f93\u901f\u7387\u548c\u9002\u7528\u573a\u666f\u7b49\u65b9\u9762\u6765\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n
RS-422\u4f7f\u7528\u5e73\u8861\u4f20\u8f93\u7ebf\uff0c\u5177\u6709\u66f4\u597d\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002RS-232\u4f7f\u7528\u975e\u5e73\u8861\u4f20\u8f93\u7ebf\uff0c\u8f83\u6613\u53d7\u5230\u5e72\u6270\u5f71\u54cd\u3002<\/p>\n
RS-422\u652f\u6301\u8f83\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u901a\u5e38\u53ef\u8fbe10Mbps\u3002RS-232\u7684\u4f20\u8f93\u901f\u7387\u8f83\u4f4e\uff0c\u4e00\u822c\u5728100kbps\u4ee5\u5185\u3002<\/p>\n
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