{"id":131,"date":"2018-09-29T14:14:31","date_gmt":"2018-09-29T14:14:31","guid":{"rendered":"http:\/\/web.recologypower.com:9080\/?p=131"},"modified":"2018-10-01T03:56:39","modified_gmt":"2018-10-01T03:56:39","slug":"db9%e6%8e%a5%e5%8f%a3%e5%ae%9a%e4%b9%89%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/www.recologypower.com:9080\/?p=131","title":{"rendered":"DB9\u63a5\u53e3\u5b9a\u4e49\u8be6\u89e3"},"content":{"rendered":"<p><strong>\u4e00\u3001\u516c\u5934\u548c\u6bcd\u5934\uff1a<\/strong><\/p>\n<p>DB9\u662f9\u9488\u7684\u4e32\u53e3\u7ebf\uff0c\u5206\u4e3a\u516c\u5934\u548c\u6bcd\u5934\u3002<\/p>\n<p>\u516c\u5934\uff1a\u6cdb\u6307\u6240\u6709\u9488\u5f0f\u7684\u63a5\u5934\uff08<strong>5\u9488\u671d\u4e0a\uff0c\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u662f1~9<\/strong>\uff09<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-133\" src=\"http:\/\/web.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513085223178-300x129.png\" alt=\"\" width=\"300\" height=\"129\" srcset=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513085223178-300x129.png 300w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513085223178.png 336w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>\u6bcd\u5934\uff1a\u6cdb\u6307\u6240\u6709\u63d2\u69fd\u5f0f\u7684\u63a5\u5934\uff085\u9488\u671d\u4e0a\uff0c\u4ece\u53f3\u5230\u5de6\u4f9d\u6b21\u662f1~9\uff09<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-135\" src=\"http:\/\/web.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513085532464.png\" alt=\"\" width=\"271\" height=\"170\" \/><\/p>\n<p><strong>\u4e8c\u3001\u5404\u7ba1\u811a\u7684\u529f\u80fd\uff1a<\/strong><\/p>\n<p><strong><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-136\" src=\"http:\/\/web.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513093044814.png\" alt=\"\" width=\"248\" height=\"277\" \/> <img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-137\" src=\"http:\/\/web.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170608172610881-300x183.png\" alt=\"\" width=\"451\" height=\"275\" srcset=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170608172610881-300x183.png 300w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170608172610881.png 446w\" sizes=\"(max-width: 451px) 100vw, 451px\" \/><\/strong><\/p>\n<p><strong>\u7ba1\u811a\u5b9a\u4e49\u516c\u5934\u548c\u6bcd\u5934\u6709\u4e00\u4e9b\u533a\u522b\uff0c\u516c\u5934\u76842\u5f15\u811a\u662fRXD\uff0c\u6bcd\u5934\u76842\u5f15\u811a\u662fTXD\u3002<\/strong><\/p>\n<pre id=\"best-content-1017186960\" class=\"best-text mb-10\">1 \u3001DCD\uff08\u00a0Data Carrier Detect\uff09 :\u8f7d\u6ce2\u68c0\u6d4b\u3002\u4e3b\u8981\u7528\u4e8eModem\u901a\u77e5\u8ba1\u7b97\u673a\u5176\u5904\u4e8e\u5728\u7ebf\u72b6\u6001\uff0c\u5373Modem\u68c0\u6d4b\u5230\u62e8\u53f7\u97f3\uff0c\u5904\u4e8e\u5728\u7ebf\u72b6\u6001\u3002\r\n2 \u3001RXD\uff08Receive(rx) Data\uff09:\u6b64\u5f15\u811a\u7528\u4e8e\u63a5\u6536\u5916\u90e8\u8bbe\u5907\u9001\u6765\u7684\u6570\u636e\uff1b\u5728\u4f60\u4f7f\u7528Modem\u65f6\uff0c\u4f60\u4f1a\u53d1\u73b0RXD\u6307\u793a\u706f\u5728\u95ea\u70c1\uff0c\u8bf4\u660eRXD\u5f15\u811a\u4e0a\u6709\u6570\u636e\u8fdb\u5165\uff08\u7535\u8111\u76842\u63a5MAX232\u7684RS232\u7aefTOUT\uff08\u5982PIN7))\u3002\r\n3 \u3001<strong>TXD<\/strong><strong>\uff08<\/strong>Transmit(tx)  Data<strong>\uff09<\/strong>:\u6b64\u5f15\u811a\u5c06\u8ba1\u7b97\u673a\u7684\u6570\u636e\u53d1\u9001\u7ed9\u5916\u90e8\u8bbe\u5907\uff1b\u5728\u4f60\u4f7f\u7528Modem\u65f6\uff0c\u4f60\u4f1a\u53d1\u73b0TXD\u6307\u793a\u706f\u5728\u95ea\u70c1\uff0c\u8bf4\u660e\u8ba1\u7b97\u673a\u6b63\u5728\u901a\u8fc7TXD\u5f15\u811a\u53d1\u9001\u6570\u636e\u3002\r\n4 \u3001<strong>DTR\uff08<\/strong>\u00a0Data Terminal Ready\u00a0<strong>\uff09<\/strong>:\u6570\u636e\u7ec8\u7aef\u5c31\u7eea\uff1b\u5f53\u6b64\u5f15\u811a\u9ad8\u7535\u5e73\u65f6\uff0c\u901a\u77e5Modem\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u8ba1\u7b97\u673a\u5df2\u7ecf\u51c6\u5907\u597d\u3002\r\n5 \u3001GND\uff08Ground\uff09:\u903b\u8f91\u5730\u3002\r\n6 \u3001<strong>DSR\uff08<\/strong>data set ready<strong>\uff09<\/strong>:\u6570\u636e\u8bbe\u7f6e\u5c31\u7eea\uff1b\u6b64\u5f15\u811a\u9ad8\u7535\u5e73\u65f6\uff0c\u901a\u77e5\u8ba1\u7b97\u673aModem\u5df2\u7ecf\u51c6\u5907\u597d\uff0c\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u901a\u8baf\u4e86\u3002\r\n7 \u3001<strong>RTS\uff08<\/strong>Request To Send<strong>\uff09<\/strong>:\u8bf7\u6c42\u53d1\u9001\uff1b\u6b64\u811a\u7531\u8ba1\u7b97\u673a\u6765\u63a7\u5236\uff0c\u7528\u4ee5\u901a\u77e5Modem\u9a6c\u4e0a\u4f20\u9001\u6570\u636e\u81f3\u8ba1\u7b97\u673a\uff1b\u5426\u5219\uff0cModem\u5c06\u6536\u5230\u7684\u6570\u636e\u6682\u65f6\u653e\u5165\u7f13\u51b2\u533a\u4e2d\u3002\r\n8 \u3001CTS\uff08Clear to send\uff09: \u6e05\u9664\u53d1\u9001\uff1b\u6b64\u811a\u7531Modem\u63a7\u5236\uff0c\u7528\u4ee5\u901a\u77e5\u8ba1\u7b97\u673a\u5c06\u6b32\u4f20\u7684\u6570\u636e\u9001\u81f3Modem\u3002\r\n9 \u3001RI \uff08\u00a0Ring Indicator\uff09: Modem\u901a\u77e5\u8ba1\u7b97\u673a\u6709\u547c\u53eb\u8fdb\u6765\uff0c\u662f\u5426\u63a5\u542c\u547c\u53eb\u7531\u8ba1\u7b97\u673a\u51b3\u5b9a\r\n<\/pre>\n<p>\u8981\u60f3\u5b9e\u73b0\u4e32\u53e3\u95f4\u901a\u4fe1\uff0c\u81f3\u5c11\u9700\u8981\u4e09\u4e2a\u5f15\u811a\uff0c\u5373\uff1aRXD,TXD,GND\uff0cRXD\u4e0e\u5176\u4ed6\u4e32\u53e3\u7ebfTXD\u76f8\u8fde\uff0cTXD\u4e0eRXD\u76f8\u8fde\uff0cGND\u4e0eGND\u76f8\u8fde\uff0c\u8fd9\u6837\u5c31\u5b9e\u73b0\u4e86\u4e32\u53e3\u95f4\u901a\u4fe1\u3002\u8be5\u901a\u4fe1\u662f\u5168\u53cc\u5de5\u7684\uff0c\u5373<strong>\u53ef\u4ee5\u540c\u65f6\u53d1\u9001\/\u63a5\u6536\u6570\u636e<\/strong>\uff0c\u867d\u7136\u8bf4\u662f\u4e32\u884c\u7684\uff0c\u4f46\u662f\u56e0\u4e3a\u53d1\u9001\/\u63a5\u6536\u4e0d\u662f\u7528\u7684\u4e00\u4e2a\u901a\u9053\uff0c\u6240\u4ee5\u53ef\u4ee5\u5b9e\u73b0\u5168\u53cc\u5de5\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-138\" src=\"http:\/\/web.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513091627744-300x232.png\" alt=\"\" width=\"300\" height=\"232\" srcset=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513091627744-300x232.png 300w, http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2018\/09\/20170513091627744.png 351w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>\u00a0 \u4e09\u3001\u8fa8\u522b\u662f\u4ea4\u53c9\u4e32\u53e3\u7ebf\u4e0e\u76f4\u8fde\u4e32\u53e3\u7ebf<\/strong><\/p>\n<p><strong>\u00a0 \u00a0 \u00a0<\/strong><strong>\u00a0 \u00a0\u00a0<\/strong>\u7528\u4e07\u7528\u8868\u6d4b\u4e00\u4e0b\uff0c\u5982\u679c2\u548c2\u901a\uff0c3\u548c3\u901a\u5219\u4e3a<strong>\u76f4\u8fde\u4e32\u53e3\u7ebf<\/strong>\uff1b\u5982\u679c2\u548c3\u901a\uff0c3\u548c2\u901a\u5219\u4e3a<strong>\u4ea4\u53c9\u4e32\u53e3\u7ebf\u3002\u5176\u5b9e\u4e5f\u5f88\u7b80\u5355\uff1a<\/strong><\/p>\n<p><strong>\u00a0 \u00a0 \u76f4\u8fde\u7ebf\uff1a\u4e00\u822c\u7528\u4e8e\u516c\u6bcd\u5934\u7684\u63a5\u6cd5<br \/>\n<\/strong><\/p>\n<p><strong>\u00a0 \u00a0\u00a0\u4ea4\u53c9\u7ebf\uff1a\u4e00\u822c\u7528\u4e8e\u4e00\u5bf9\u516c\u5934\u6216\u4e00\u5bf9\u6bcd\u5934\u7684\u63a5\u6cd5\uff08\u5c31\u50cf\u4e0a\u9762\u90a3\u4e2a\u56fe\u4e00\u6837\uff09<\/strong><\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; \u672c\u6587\u6765\u81ea qicheng777 \u7684CSDN \u535a\u5ba2 \uff0c\u5168\u6587\u5730\u5740\u8bf7\u70b9\u51fb\uff1ahttps:\/\/blog.csdn.net\/qicheng777\/article\/details\/71775068?utm_source=copy<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"slide-text-bg2\">\n<h3>\u4e00\u3001\u516c\u5934\u548c\u6bcd\u5934\uff1a DB9\u662f9\u9488\u7684\u4e32\u53e3\u7ebf\uff0c<\/h3>\n<\/div>\n<div class=\"flex-btn-div\"><a href=\"http:\/\/www.recologypower.com:9080\/?p=131\" class=\"btn1 flex-btn\">\u9605\u8bfb\u66f4\u591a<\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"_links":{"self":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/131"}],"collection":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=131"}],"version-history":[{"count":3,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/131\/revisions"}],"predecessor-version":[{"id":139,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/131\/revisions\/139"}],"wp:attachment":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=131"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}