{"id":1182,"date":"2019-11-19T09:33:41","date_gmt":"2019-11-19T01:33:41","guid":{"rendered":"http:\/\/iqotom.com\/?p=1182"},"modified":"2019-11-19T09:33:43","modified_gmt":"2019-11-19T01:33:43","slug":"rs232%e5%92%8crs485%e9%80%9a%e8%ae%af%e6%8e%a5%e5%8f%a3%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"http:\/\/iqotom.com\/?p=1182","title":{"rendered":"RS232\u548cRS485\u901a\u8baf\u63a5\u53e3\u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"\n<p>\u3000\u3000\u7b80\u5355\u5730\u8bf4\uff0c<a href=\"https:\/\/baike.baidu.com\/item\/RS-232?fromtitle=rs232&amp;fromid=3555506\">RS-232<\/a>\u4e0e<a href=\"https:\/\/baike.baidu.com\/item\/RS-485?fromtitle=rs485&amp;fromid=3555602\">RS-485<\/a>\u7684\u533a\u522b\u4e3b\u8981\u5728\u4e8e\uff1a\u4f20\u8f93\u65b9\u5f0f\u4e0d\u540c\u3001\u4f20\u8f93\u8ddd\u79bb\u4e0d\u540c\u3001RS-232 \u53ea\u5141\u8bb8\u4e00\u5bf9\u4e00\u901a\u4fe1 <\/p>\n\n\n\n<ol><li>\u4f20\u8f93\u65b9\u5f0f\u4e0d\u540c\u3002 RS-232\u91c7\u53d6\u4e0d\u5e73\u8861\u4f20\u8f93\u65b9\u5f0f\uff0c\u5373\u6240\u8c13\u5355\u7aef\u901a\u8baf. \u800cRS485\u5219\u91c7\u7528\u5e73\u8861\u4f20\u8f93\uff0c\u5373\u5dee\u5206\u4f20\u8f93\u65b9\u5f0f<\/li><li> \u4f20\u8f93\u8ddd\u79bb\u4e0d\u540c\u3002RS-232\u9002\u5408\u672c\u5730\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u4f20\u8f93\u8ddd\u79bb\u4e00\u822c\u4e0d\u8d85\u8fc720m\u3002\u800cRS-485\u7684\u4f20\u8f93\u8ddd\u79bb\u4e3a\u51e0\u5341\u7c73\u5230\u4e0a\u5343\u7c73 <\/li><li> RS-232 \u53ea\u5141\u8bb8\u4e00\u5bf9\u4e00\u901a\u4fe1\uff0c\u800cRS-485 \u63a5\u53e3\u5728\u603b\u7ebf\u4e0a\u662f\u5141\u8bb8\u8fde\u63a5\u591a\u8fbe128\u4e2a\u6536\u53d1\u5668 <\/li><\/ol>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"535\" height=\"343\" src=\"http:\/\/iqotom.com\/wp-content\/uploads\/2019\/11\/rs232_1.png\" alt=\"\" class=\"wp-image-1185\" srcset=\"http:\/\/iqotom.com\/wp-content\/uploads\/2019\/11\/rs232_1.png?v=1585627855 535w, http:\/\/iqotom.com\/wp-content\/uploads\/2019\/11\/rs232_1-300x192.png?v=1585627855 300w\" sizes=\"(max-width: 535px) 100vw, 535px\" \/><figcaption>RS232<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u6269\u5c55\u8d44\u6599<\/strong><\/h2>\n\n\n\n<ol><li> RS-232\u88ab\u5b9a\u4e49\u4e3a\u4e00\u79cd\u5728\u4f4e\u901f\u7387\u4e32\u884c\u901a\u8baf\u4e2d\u589e\u52a0\u901a\u8baf\u8ddd\u79bb\u7684\u5355\u7aef\u6807\u51c6 <\/li><li> RS-232\u91c7\u53d6\u4e0d\u5e73\u8861\u4f20\u8f93\u65b9\u5f0f\uff0c\u5373\u6240\u8c13\u5355\u7aef\u901a\u8baf.\u6536\u3001\u53d1\u7aef\u7684\u6570\u636e\u4fe1\u53f7\u662f\u76f8\u5bf9\u4e8e\u4fe1\u53f7\u5730\uff0c\u5982\u4eceDTE\u8bbe\u5907\u53d1\u51fa\u7684\u6570\u636e\u5728\u4f7f\u7528DB25\u8fde\u63a5\u5668\u65f6\u662f2\u811a\u76f8\u5bf97\u811a\uff08\u4fe1\u53f7\u5730\uff09\u7684\u7535\u5e73 <\/li><li> \u5178\u578b\u7684RS-232\u4fe1\u53f7\u5728\u6b63\u8d1f\u7535\u5e73\u4e4b\u95f4\u6446\u52a8\uff0c\u5728\u53d1\u9001\u6570\u636e\u65f6\uff0c\u53d1\u9001\u7aef\u9a71\u52a8\u5668\u8f93\u51fa\u6b63\u7535\u5e73\u5728+5\uff5e+15V\uff0c\u8d1f\u7535\u5e73\u5728-5\uff5e-15V\u7535\u5e73\u3002\u5f53\u65e0\u6570\u636e\u4f20\u8f93\u65f6\uff0c\u7ebf\u4e0a\u4e3aTTL\uff0c\u4ece\u5f00\u59cb\u4f20\u9001\u6570\u636e\u5230\u7ed3\u675f\uff0c\u7ebf\u4e0a\u7535\u5e73\u4eceTTL\u7535\u5e73\u5230RS-232\u7535\u5e73\u518d\u8fd4\u56deTTL\u7535\u5e73 <\/li><li> \u9488\u5bf9rs232\u63a5\u53e3\u7684\u4e0d\u8db3\uff0c\u4e8e\u662f\u5c31\u4e0d\u65ad\u51fa\u73b0\u4e86\u4e00\u4e9b\u65b0\u7684\u63a5\u53e3\u6807\u51c6\uff0crs-485\u5c31\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u5b83\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a <br>\uff11\uff09 rs-485\u7684\u7535\u6c14\u7279\u6027\uff1a\u903b\u8f91\u201c1\u201d\u4ee5\u4e24\u7ebf\u95f4\u7684\u7535\u538b\u5dee\u4e3a+(2-6) v\u8868\u793a\uff1b\u903b\u8f91\u201c0\u201d\u4ee5\u4e24\u7ebf\u95f4\u7684\u7535\u538b\u5dee\u4e3a-(2-6)v\u8868\u793a\u3002\u63a5\u53e3\u4fe1\u53f7\u7535\u5e73\u6bd4rs-232\u964d\u4f4e\u4e86\uff0c\u5c31\u4e0d\u6613\u635f\u574f\u63a5\u53e3\u7535\u8def\u7684\u82af\u7247\uff0c \u4e14\u8be5\u7535\u5e73\u4e0ettl\u7535\u5e73\u517c\u5bb9\uff0c\u53ef\u65b9\u4fbf\u4e0ettl \u7535\u8def\u8fde\u63a5 <br>\uff12\uff09 rs-485\u7684\u6570\u636e\u6700\u9ad8\u4f20\u8f93\u901f\u7387\u4e3a10mbps\u00a0 <br>\uff13\uff09 rs-485\u63a5\u53e3\u662f\u91c7\u7528\u5e73\u8861\u9a71\u52a8\u5668\u548c\u5dee\u5206\u63a5\u6536\u5668\u7684\u7ec4\u5408\uff0c\u6297\u5171\u6a21\u5e72\u80fd\u529b\u589e\u5f3a\uff0c\u5373\u6297\u566a\u58f0\u5e72\u6270\u6027\u597d <br>\uff14\uff09 rs-485\u63a5\u53e3\u7684\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u6807\u51c6\u503c\u4e3a4000\u82f1\u5c3a\uff0c\u5b9e\u9645\u4e0a\u53ef\u8fbe 3000\u7c73\uff0c\u53e6\u5916rs-232\u63a5\u53e3\u5728\u603b\u7ebf\u4e0a\u53ea\u5141\u8bb8\u8fde\u63a51\u4e2a\u6536\u53d1\u5668\uff0c\u5373\u5355\u7ad9\u80fd\u529b\u3002\u800crs-485\u63a5\u53e3\u5728\u603b\u7ebf\u4e0a\u662f\u5141\u8bb8\u8fde\u63a5\u591a\u8fbe128\u4e2a\u6536\u53d1\u5668\u3002\u5373\u5177\u6709\u591a\u7ad9\u80fd\u529b\uff0c\u8fd9\u6837\u7528\u6237\u53ef\u4ee5\u5229\u7528\u5355\u4e00\u7684rs-485\u63a5\u53e3\u65b9\u4fbf\u5730\u5efa\u7acb\u8d77\u8bbe\u5907\u7f51\u7edc <br><\/li><\/ol>\n\n\n\n<p>\u8f6c\u8f7d\uff1a <a href=\"https:\/\/zhidao.baidu.com\/question\/381450152.html\">https:\/\/zhidao.baidu.com\/question\/381450152.html<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000\u3000\u7b80\u5355\u5730\u8bf4\uff0cRS-232\u4e0eRS-485\u7684\u533a\u522b\u4e3b\u8981\u5728\u4e8e\uff1a\u4f20\u8f93\u65b9\u5f0f\u4e0d\u540c\u3001\u4f20\u8f93\u8ddd\u79bb\u4e0d\u540c\u3001RS-232 \u53ea\u5141\u8bb8\u4e00\u5bf9\u4e00\u2026 <span class=\"read-more\"><a href=\"http:\/\/iqotom.com\/?p=1182\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":1185,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95,63],"tags":[96,97],"_links":{"self":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1182"}],"collection":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1182"}],"version-history":[{"count":3,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1182\/revisions"}],"predecessor-version":[{"id":1186,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1182\/revisions\/1186"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/media\/1185"}],"wp:attachment":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1182"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}