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RS422\u662f\u4e00\u79cd\u5355\u5411\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u7528\u4e8e\u8fde\u63a5\u4e24\u53f0\u7535\u8111\uff0c\u5b9e\u73b0\u8fdc\u7a0b\u6570\u636e\u4f20\u8f93\u3002RS422\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u6700\u5927\u53ef\u8fbe4\u5343\u7c73\u3002\u5b83\u8fd8\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u6570\u636e\u4f20\u8f93\u683c\u5f0f\uff0c\u5305\u62ecRS-232\u3001RS-422\u3001RS-485\u548cRS-530\u3002\u6b64\u5916\uff0c\u5b83\u8fd8\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u901f\u7387\uff0c\u6700\u9ad8\u53ef\u8fbe10 Mbps\u3002<\/p>\n
RS422\u7684\u7f3a\u70b9\u5728\u4e8e\u5b83\u662f\u4e00\u79cd\u5355\u5411\u901a\u4fe1\u6280\u672f\uff0c\u53ea\u80fd\u5b9e\u73b0\u5355\u5411\u6570\u636e\u4f20\u8f93\uff0c\u65e0\u6cd5\u5b9e\u73b0\u53cc\u5411\u901a\u4fe1\u3002\u6b64\u5916\uff0c\u5b83\u4e5f\u4e0d\u80fd\u652f\u6301\u591a\u79cd\u6570\u636e\u4f20\u8f93\u683c\u5f0f\uff0c\u53ea\u80fd\u652f\u6301RS-232\u3001RS-422\u3001RS-485\u548cRS-530\u683c\u5f0f\u3002<\/p>\n
RS485\u662f\u4e00\u79cd\u53cc\u5411\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u7528\u4e8e\u8fde\u63a5\u4e24\u53f0\u7535\u8111\uff0c\u5b9e\u73b0\u53cc\u5411\u6570\u636e\u4f20\u8f93\u3002RS485\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93\uff0c\u6700\u5927\u53ef\u8fbe4\u5343\u7c73\u3002\u5b83\u8fd8\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u6570\u636e\u4f20\u8f93\u683c\u5f0f\uff0c\u5305\u62ecRS-232\u3001RS-422\u3001RS-485\u548cRS-530\u3002\u6b64\u5916\uff0c\u5b83\u8fd8\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u901f\u7387\uff0c\u6700\u9ad8\u53ef\u8fbe10 Mbps\u3002<\/p>\n
RS485\u7684\u4f18\u70b9\u5728\u4e8e\u5b83\u662f\u4e00\u79cd\u53cc\u5411\u901a\u4fe1\u6280\u672f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u53cc\u5411\u6570\u636e\u4f20\u8f93\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u4f20\u8f93\u683c\u5f0f\uff0c\u5305\u62ecRS-232\u3001RS-422\u3001RS-485\u548cRS-530\u683c\u5f0f\u3002\u6b64\u5916\uff0c\u5b83\u8fd8\u53ef\u4ee5\u652f\u6301\u591a\u79cd\u901f\u7387\uff0c\u6700\u9ad8\u53ef\u8fbe10 Mbps\u3002<\/p>\n
RS485\u7684\u7f3a\u70b9\u5728\u4e8e\u5b83\u7684\u4f20\u8f93\u8ddd\u79bb\u6709\u9650\uff0c\u6700\u5927\u53ea\u80fd\u652f\u63014\u5343\u7c73\u7684\u8ddd\u79bb\u3002\u6b64\u5916\uff0c\u5b83\u4e5f\u4e0d\u80fd\u652f\u6301\u591a\u79cd\u6570\u636e\u4f20\u8f93\u683c\u5f0f\uff0c\u53ea\u80fd\u652f\u6301RS-232\u3001RS-422\u3001RS-485\u548cRS-530\u683c\u5f0f\u3002<\/p>\n
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