{"id":92037,"date":"2024-04-25T15:25:18","date_gmt":"2024-04-25T07:25:18","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=92037"},"modified":"2024-04-25T15:25:46","modified_gmt":"2024-04-25T07:25:46","slug":"tcktxxyjs","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/92037.html","title":{"rendered":"TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u4ecb\u7ecd"},"content":{"rendered":"\n<p>\u3000\u3000<strong>TTL(\u6676\u4f53\u7ba1-\u6676\u4f53\u7ba1\u903b\u8f91)<\/strong>\u662f\u4e00\u79cd\u7535\u8def\u903b\u8f91\uff0c\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u8ba1\u7b97\u673a\u7535\u8def\u7684\u8f93\u5165\u548c\u8f93\u51fa\u4fe1\u53f7\u3002\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u662f\uff0c\u5f53\u7535\u8def\u8f93\u5165\u7aef\u63a5\u6536\u5230\u4e00\u4e2a\u9ad8\u7535\u5e73\u4fe1\u53f7\u65f6\uff0cTTL\u4f1a\u5411\u7535\u8def\u8f93\u51fa\u7aef\u53d1\u51fa\u4e00\u4e2a\u4f4e\u7535\u5e73\u4fe1\u53f7\u3002TTL\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u591a\u79cd\u7535\u8def\u63a7\u5236\uff0c\u5982\u95e8\u7535\u8def\u3001\u79fb\u4f4d\u5bc4\u5b58\u5668\u3001\u8ba1\u6570\u5668\u548c\u65f6\u949f\u7535\u8def\u7b49\u3002\u5728\u4e32\u53e3\u901a\u4fe1\u4e2d\uff0cTTL\u4e0eRS232\u3001RS485\u7b49\u534f\u8bae\u76f8\u6bd4\uff0c\u6700\u5927\u7684\u533a\u522b\u5728\u4e8eTTL\u63a5\u53e3\u5c5e\u4e8e\u5e76\u884c\u65b9\u5f0f\u4f20\u8f93\u6570\u636e\u7684\u63a5\u53e3\uff0c\u800cRS232\u548cRS485\u9075\u5faa\u7684\u662f\u4e32\u884c\u901a\u4fe1\u534f\u8bae\u3002<\/p>\n\n\n\n<p>\u3000\u3000TTL\u7535\u5e73\u6807\u51c6\u89c4\u5b9a\uff0c+5V\u7b49\u4ef7\u4e8e\u903b\u8f91&#8221;1&#8243;\uff0c0V\u7b49\u4ef7\u4e8e\u903b\u8f91&#8221;0&#8243;\u3002\u8fd9\u79cd\u6570\u636e\u901a\u4fe1\u53ca\u7535\u5e73\u89c4\u5b9a\u65b9\u5f0f\uff0c\u88ab\u79f0\u4f5cTTL\u4fe1\u53f7\u7cfb\u7edf\u3002\u4e00\u822c\u7684\u7535\u5b50\u8bbe\u5907\u90fd\u662f\u4f7f\u7528TTL\uff0c\u4e00\u4e9b\u901a\u4fe1\u65b9\u5f0f\u5982RS232\u3001RS485\u3001USB\u7b49\u5728\u4f20\u8f93\u7ebf\u4e0a\u4f7f\u7528\u5dee\u5206\u4fe1\u53f7\u3002TTL\u534f\u8bae\u9002\u7528\u4e8e\u6570\u5b57\u7535\u8def\u548c\u5fae\u5904\u7406\u5668\u7cfb\u7edf\uff0c\u800cRS232\u534f\u8bae\u5e38\u7528\u4e8e\u8ba1\u7b97\u673a\u4e32\u53e3\u901a\u4fe1\u548c\u5de5\u4e1a\u81ea\u52a8\u5316\u63a7\u5236\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u7531\u4e8e\u5927\u591a\u6570MCU\u7684\u4fe1\u53f7\u90fd\u662fTTL\u4fe1\u53f7\uff0c\u4e14\u6570\u636e\u662f\u901a\u8fc7\u4e32\u53e3\u53d1\u9001\u548c\u63a5\u6536\u7684\uff0c\u5982\u679c\u8981\u5c06\u6570\u636e\u653e\u5728485\u901a\u4fe1\u7ebf\u4e0a\u4f20\u8f93\uff0c\u5219\u9700\u8981\u5c06TTL\u4fe1\u53f7\u8f6c\u4e3aRS-485\u7684\u5dee\u5206\u4fe1\u53f7\uff0c\u7136\u540e\u5728AB\u7ebf\u4e0a\u4f20\u8f93\uff0c\u5230\u8fbe\u8282\u70b9\u540e\u518d\u5c06RS-485\u7684\u5dee\u5206\u4fe1\u53f7\u8f6c\u6362\u4e3aTTL\u4fe1\u53f7\uff0c\u4ee5\u4fbf\u7ed9\u8282\u70b9\u7684MCU\u8fdb\u884c\u6570\u636e\u5904\u7406\u3002\u6b64\u5916\uff0cTTL\u901a\u8baf\u548cRS232\u901a\u8baf\u662f\u4e00\u79cd\u7528\u4e8e\u8fde\u63a5\u8ba1\u7b97\u673a\u548c\u5916\u90e8\u8bbe\u5907\u7684\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4eec\u90fd\u9075\u5faa\u7740\u7c7b\u4f3c\u7684\u901a\u4fe1\u65f6\u5e8f\u534f\u8bae\uff0c\u56e0\u6b64\u90fd\u88ab\u901a\u79f0\u4e3a\u4e32\u53e3\u3002<\/p>\n\n\n\n<p>\u3000\u3000TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u662f\u4e00\u79cd\u57fa\u4e8e\u6676\u4f53\u7ba1-\u6676\u4f53\u7ba1\u903b\u8f91\u7684\u7535\u8def\u903b\u8f91\uff0c\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u8ba1\u7b97\u673a\u7535\u8def\u7684\u8f93\u5165\u548c\u8f93\u51fa\u4fe1\u53f7\u3002\u5b83\u901a\u8fc7\u7b80\u5355\u7684\u7535\u5e73\u8f6c\u6362\uff0c\u5b9e\u73b0\u4e86\u6570\u636e\u7684\u4e32\u884c\u4f20\u8f93\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u7535\u5b50\u8bbe\u5907\u548c\u5fae\u5904\u7406\u5668\u7cfb\u7edf\u7684\u901a\u4fe1\u4e2d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u7684\u5177\u4f53\u5de5\u4f5c\u539f\u7406\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u662f\u4e00\u79cd\u57fa\u4e8e\u6676\u4f53\u7ba1\u903b\u8f91(Transistor-transistor Logic)\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u4e3b\u8981\u7528\u4e8e\u7535\u5b50\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u548c\u63a7\u5236\u3002\u5176\u5de5\u4f5c\u539f\u7406\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u7535\u5e73\u6807\u51c6\uff1aTTL\u534f\u8bae\u5b9a\u4e49\u4e86\u903b\u8f91\u9ad8\u7535\u5e73\u548c\u903b\u8f91\u4f4e\u7535\u5e73\u7684\u6807\u51c6\u7535\u538b\u503c\u3002\u5728TTL\u534f\u8bae\u4e2d\uff0c\u903b\u8f91\u9ad8\u7535\u5e73\u901a\u5e38\u8868\u793a\u4e3a+5\u4f0f\u7279\uff0c\u800c\u903b\u8f91\u4f4e\u7535\u5e73\u5219\u8868\u793a\u4e3a0\u4f0f\u7279\u3002\u8fd9\u79cd\u7535\u5e73\u6807\u51c6\u4f7f\u5f97\u4e0d\u540c\u7535\u5b50\u8bbe\u5907\u4e4b\u95f4\u80fd\u591f\u51c6\u786e\u5730\u8bc6\u522b\u548c\u5904\u7406\u6570\u636e\u4fe1\u53f7\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u7535\u538b\u8303\u56f4\uff1a\u5bf9\u4e8e\u5168\u53cc\u5de5\u901a\u4fe1\uff0cTTL\u7535\u5e73\u7684\u903b\u8f911\u8303\u56f4\u662f2.4V\u81f35V\uff0c\u903b\u8f910\u7684\u8303\u56f4\u662f0V\u81f30.5V\u3002\u8fd9\u4e00\u7535\u538b\u8303\u56f4\u6709\u52a9\u4e8e\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u5e94\u7528\u9886\u57df\uff1aTTL\u534f\u8bae\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6570\u5b57\u7535\u8def\u548c\u5fae\u5904\u7406\u5668\u7cfb\u7edf\u4e2d\uff0c\u4f8b\u5982\u5728\u8ba1\u7b97\u673a\u3001\u624b\u673a\u3001\u673a\u5668\u4eba\u7b49\u7535\u5b50\u8bbe\u5907\u4e4b\u95f4\u7684\u8fde\u63a5\u3002\u5b83\u7684\u4f7f\u7528\u4e0d\u4ec5\u9650\u4e8e\u7279\u5b9a\u7c7b\u578b\u7684\u8bbe\u5907\uff0c\u800c\u662f\u9002\u7528\u4e8e\u591a\u79cd\u7535\u5b50\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u4f20\u8f93\u548c\u63a7\u5236\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u4e0eRS232\u7684\u533a\u522b\uff1a\u867d\u7136RS232\u4e5f\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u4e32\u884c\u901a\u4fe1\u6807\u51c6\uff0c\u4f46\u5b83\u4f7f\u7528\u4e0d\u540c\u7684\u7535\u538b\u8868\u793a\u903b\u8f91\u72b6\u6001\u3002RS232\u4e0eTTL\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u4f7f\u7528\u7684\u7535\u538b\u8303\u56f4\u548c\u903b\u8f91\u7535\u5e73\u6807\u51c6\u4e0d\u540c\u3002\u56e0\u6b64\uff0c\u5728\u8fdb\u884c\u901a\u4fe1\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u901a\u8fc7\u7535\u5e73\u8f6c\u6362\u6216\u4fe1\u53f7\u903b\u8f91\u8f6c\u6362\u6765\u5b9e\u73b0RS232\u4e0eTTL\u4e4b\u95f4\u7684\u4e92\u8f6c\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u5b9e\u9645\u5e94\u7528\uff1a\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5982\u9700\u5c06RS232\u4fe1\u53f7\u8f6c\u6362\u4e3aTTL\u4fe1\u53f7\uff0c\u53ef\u4ee5\u4f7f\u7528MAX232\u82af\u7247\u7b49\u4e13\u7528\u6a21\u5757\u6765\u5b8c\u6210\u7535\u5e73\u8f6c\u6362\u548c\u4fe1\u53f7\u903b\u8f91\u8f6c\u6362\u7684\u5de5\u4f5c\u3002\u8fd9\u8868\u660eTTL\u534f\u8bae\u4e0d\u4ec5\u5728\u7406\u8bba\u4e0a\u5177\u6709\u660e\u786e\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u800c\u4e14\u5728\u5b9e\u8df5\u4e2d\u4e5f\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u548c\u7075\u6d3b\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u901a\u8fc7\u5b9a\u4e49\u660e\u786e\u7684\u7535\u5e73\u6807\u51c6\u548c\u7535\u538b\u8303\u56f4\uff0c\u5b9e\u73b0\u4e86\u7535\u5b50\u8bbe\u5907\u4e4b\u95f4\u9ad8\u6548\u3001\u53ef\u9760\u7684 data transmission and control\u3002\u5176\u5e7f\u6cdb\u7684\u5e94\u7528\u9886\u57df\u548c\u4e0e\u5176\u4ed6\u901a\u4fe1\u6807\u51c6\u7684\u517c\u5bb9\u6027\uff0c\u4f7f\u5176\u6210\u4e3a\u7535\u5b50\u901a\u4fe1\u9886\u57df\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 \u5982\u4f55\u5c06TTL\u4fe1\u53f7\u8f6c\u6362\u4e3aRS485\u7684\u5dee\u5206\u4fe1\u53f7?<\/h2>\n\n\n\n<p>\u3000\u3000\u5c06TTL\u4fe1\u53f7\u8f6c\u6362\u4e3aRS485\u7684\u5dee\u5206\u4fe1\u53f7\uff0c\u4e3b\u8981\u6d89\u53ca\u5230\u51e0\u4e2a\u5173\u952e\u6b65\u9aa4\u548c\u7ec4\u4ef6\u3002\u9996\u5148\uff0c\u9700\u8981\u7406\u89e3RS485\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\uff0c\u5b83\u91c7\u7528\u5e73\u8861\u53d1\u9001\u548c\u5dee\u5206\u63a5\u6536\u7684\u65b9\u5f0f\u5b9e\u73b0\u901a\u4fe1\u3002\u8fd9\u610f\u5473\u7740\u53d1\u9001\u7aef\u4f1a\u5c06\u4e32\u884c\u53e3\u7684TTL\u7535\u5e73\u4fe1\u53f7\u8f6c\u6362\u6210\u5dee\u5206\u4fe1\u53f7A\u548cB\u4e24\u8def\u8f93\u51fa\uff0c\u800c\u5728\u63a5\u6536\u7aef\u5219\u5c06\u8fd9\u4e9b\u5dee\u5206\u4fe1\u53f7\u8fd8\u539f\u6210TTL\u7535\u5e73\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u5230\u7535\u8def\u8bbe\u8ba1\u4e0a\uff0c\u4e00\u4e2a\u7b80\u5355\u7684TTL\u8f6cRS485\u7535\u8def\u5305\u62ec\u7279\u5b9a\u7684\u53d8\u538b\u5668\u3001\u653e\u5927\u5668\u548c\u9650\u6d41\u7535\u963b\u3002\u8fd9\u4e9b\u7ec4\u4ef6\u5171\u540c\u4f5c\u7528\uff0c\u80fd\u591f\u5c06TTL\u7535\u5e73\u4fe1\u53f7\u8f6c\u6362\u4e3a\u7b26\u5408RS485\u6807\u51c6\u7684\u7535\u5e73\u3002\u6b64\u5916\uff0c\u8fd8\u6709\u4e13\u95e8\u7684\u8f6c\u6362\u82af\u7247\uff0c\u59828\u811aTTL\u7535\u5e73\u5230RS-485\u7535\u5e73\u7684\u8f6c\u6362\u82af\u7247\uff0c\u5b83\u901a\u8fc7\u7279\u5b9a\u7684\u7ba1\u811a\u5b9a\u4e49\u6765\u5b9e\u73b0\u7535\u5e73\u8f6c\u6362\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u517c\u5bb9TTL\/RS485\u6807\u51c6\u7684\u8f6c\u6362\u5668\uff0c\u8fd9\u79cd\u8f6c\u6362\u5668\u53ef\u4ee5\u5c06TTL\u4fe1\u53f7\u76f4\u63a5\u8f6c\u6362\u6210\u5dee\u5206RS485\u4fe1\u53f7\uff0c\u652f\u63013.3V\u81f35V\u7684TTL\u4fe1\u53f7\u7535\u5e73\uff0c\u5e76\u4e14\u5177\u5907\u7535\u6e90\u9694\u79bb\u529f\u80fd\uff0c\u4ee5\u63d0\u4f9b\u66f4\u7a33\u5b9a\u53ef\u9760\u7684\u4fe1\u53f7\u8f6c\u6362\u3002\u6b64\u5916\uff0c\u8fd8\u6709\u4e00\u4e9b\u5de5\u4e1a\u7ea7\u5bfc\u8f68\u5f0f\u7684\u7535\u6c14\u9694\u79bb\u578bTTL\u8f6cRS485\u4e32\u53e3\u8f6c\u6362\u5668\uff0c\u5b83\u4eec\u80fd\u591f\u5c06TTL\u4fe1\u53f7\u8f6c\u6362\u6210\u5e73\u8861\u5dee\u5206\u7684RS485\u4fe1\u53f7\uff0c\u9002\u7528\u4e8e\u63a5\u53e3\u8f6c\u6362\u3001\u6269\u5145\u8282\u70b9\u6216\u5ef6\u957f\u901a\u4fe1\u8ddd\u79bb\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u603b\u7ed3\u6765\u8bf4\uff0c\u5c06TTL\u4fe1\u53f7\u8f6c\u6362\u4e3aRS485\u7684\u5dee\u5206\u4fe1\u53f7\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7279\u5b9a\u7684\u53d8\u538b\u5668\u3001\u653e\u5927\u5668\u3001\u9650\u6d41\u7535\u963b\u4ee5\u53ca\u4e13\u7528\u7684\u8f6c\u6362\u82af\u7247\u6216\u8f6c\u6362\u5668\u6765\u5b9e\u73b0\u3002\u8fd9\u4e9b\u65b9\u6cd5\u548c\u7ec4\u4ef6\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u9700\u6c42\u548c\u7cfb\u7edf\u914d\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 TTL\u4e0eRS232\u3001RS485\u5728\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u548c\u8ddd\u79bb\u65b9\u9762\u7684\u6bd4\u8f83\u5982\u4f55?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u65b9\u9762\uff0cTTL\u7684\u901f\u5ea6\u6bd4RS485\u8981\u5feb\u3002TTL\u53ef\u4ee5\u8fbe\u5230\u6bcf\u79d2\u51e0\u5341\u4e07\u6b21\u7684\u903b\u8f91\u64cd\u4f5c\uff0c\u800cRS485\u7684\u901f\u5ea6\u53ea\u80fd\u8fbe\u5230\u6bcf\u79d2\u51e0\u5341\u4e07\u6b21\u7684\u6570\u636e\u4f20\u8f93\u3002\u8fd9\u8868\u660e\u5728\u5904\u7406\u901f\u5ea6\u4e0a\uff0cTTL\u5177\u6709\u4f18\u52bf\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u6570\u636e\u4f20\u8f93\u8ddd\u79bb\u65b9\u9762\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u901a\u8baf\u8ddd\u79bb\u7684\u987a\u5e8f\u662f\uff1aTTL < RS232 < RS485.\u5177\u4f53\u6765\u8bf4\uff0cTTL\u7684\u901a\u8baf\u8ddd\u79bb\u4e00\u822c\u57281\u7c73\u4ee5\u5185\uff0cRS232\u7684\u901a\u8baf\u8ddd\u79bb\u4e3a15\u7c73\uff0c\u800cRS485\u7684\u901a\u8baf\u8ddd\u79bb\u53ef\u8fbe1.2km\u3002\u8fd9\u8bf4\u660e\u5728\u957f\u8ddd\u79bb\u901a\u4fe1\u65b9\u9762\uff0cRS485\u548cRS232\u76f8\u6bd4TTL\u6709\u660e\u663e\u7684\u4f18\u52bf\u3002<\/p>\n\n\n\n<p>\u3000\u3000TTL\u5728\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u65b9\u9762\u4f18\u4e8eRS485.\u4f46\u5728\u6570\u636e\u4f20\u8f93\u8ddd\u79bb\u65b9\u9762\uff0cRS485\u548cRS232\u5747\u4f18\u4e8eTTL\u3002\u8fd9\u4e9b\u5dee\u5f02\u4f7f\u5f97\u5b83\u4eec\u5404\u81ea\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002\u4f8b\u5982\uff0cTTL\u7531\u4e8e\u5176\u9ad8\u901f\u7279\u6027\uff0c\u66f4\u9002\u5408\u4e8e\u9700\u8981\u5feb\u901f\u5904\u7406\u903b\u8f91\u64cd\u4f5c\u7684\u5185\u90e8\u677f\u5361\u901a\u4fe1;\u800cRS485\u548cRS232\u5219\u56e0\u5176\u8f83\u957f\u7684\u4f20\u8f93\u8ddd\u79bb\uff0c\u66f4\u9002\u5408\u4e8e\u8bbe\u5907\u95f4\u6216\u66f4\u8fdc\u8ddd\u79bb\u7684\u901a\u4fe1\u9700\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cTTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u6297\u5e72\u6270\u80fd\u529b\u8f83\u5f31\uff1a\u4e0eRS232\u3001RS485\u7b49\u901a\u4fe1\u534f\u8bae\u76f8\u6bd4\uff0cTTL\u7684\u6297\u5e72\u6270\u80fd\u529b\u8f83\u5f31\u3002\u5728\u67d0\u4e9b\u5e72\u6270\u573a\u5408\u4e0b\uff0cTTL\u901a\u4fe1\u7684\u8106\u5f31\u6027\u4f1a\u66f4\u52a0\u660e\u663e\uff0c\u8fd9\u5c31\u9700\u8981\u91c7\u53d6\u63aa\u65bd\u6765\u63d0\u5347\u5176\u6297\u5e72\u6270\u80fd\u529b\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u4f20\u8f93\u8ddd\u79bb\u9650\u5236\uff1aTTL\u901a\u4fe1\u7684\u7406\u8bba\u6700\u5927\u4f20\u8f93\u8ddd\u79bb\u4e3a2\u7c73\uff0c\u4f46\u5b9e\u9645\u5e94\u7528\u4e2d\u5efa\u8bae\u4e0d\u8981\u8d85\u8fc750cm\u3002\u8fd9\u4e2a\u9650\u5236\u4e0e\u7535\u78c1\u73af\u5883\u6709\u5173\uff0c\u4e3b\u8981\u53d7\u9650\u4e8eTTL\u5668\u4ef6\u7684\u5e26\u8d1f\u8f7d\u80fd\u529b\u548c\u6297\u5e72\u6270\u80fd\u529b\u7684\u5f71\u54cd\u3002\u6b64\u5916\uff0c\u5f53\u8ddd\u79bb\u8d85\u8fc71\u7c73\u65f6\uff0c\u6570\u636e\u4e22\u5931\u73b0\u8c61\u4f1a\u6bd4\u8f83\u4e25\u91cd\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u7535\u6e90\u566a\u58f0\u95ee\u9898\uff1a\u7535\u6e90\u566a\u58f0\u4f1a\u5bf9TTL\u4fe1\u53f7\u4f20\u8f93\u9020\u6210\u5e72\u6270\u3002\u4e3a\u4e86\u51cf\u5c0f\u7535\u6e90\u566a\u58f0\u5bf9\u4fe1\u53f7\u4f20\u8f93\u7684\u5f71\u54cd\uff0c\u53ef\u4ee5\u91c7\u7528\u7a33\u538b\u7535\u6e90\u3001\u6ee4\u6ce2\u7535\u5bb9\u7b49\u65b9\u5f0f\u6765\u4f18\u5316\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u5e03\u5c40\u548c\u8fde\u63a5\u95ee\u9898\uff1a\u5e03\u5c40\u4e0d\u5408\u7406\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u4f20\u8f93\u4e0d\u7a33\u5b9a\u3002\u56e0\u6b64\uff0c\u4f18\u5316\u5e03\u5c40\uff0c\u786e\u4fddTX\u7ebf\u4e0eRX\u7ebf\u5e73\u884c\u4e14\u76f4\u987a\uff0c\u662f\u63d0\u5347TTL\u901a\u4fe1\u7a33\u5b9a\u6027\u7684\u5173\u952e\u63aa\u65bd\u4e4b\u4e00\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u786c\u4ef6\u95ee\u9898\uff1a\u786c\u4ef6\u95ee\u9898\u4e5f\u662f\u5bfc\u81f4TTL\u4e32\u53e3\u901a\u4fe1\u5931\u8d25\u7684\u4e00\u4e2a\u5e38\u89c1\u539f\u56e0\u3002\u4f8b\u5982\uff0c\u7535\u8111\u4e2d\u5b89\u88c5\u7684\u9a71\u52a8\u4e0d\u6b63\u786e\u6216\u8005USB\u8f6c422\u8f6c\u6362\u5668\u5b58\u5728\u95ee\u9898\uff0c\u90fd\u53ef\u80fd\u5bfc\u81f4\u65e0\u6cd5\u6b63\u5e38\u901a\u8baf\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u63a5\u6536\u4e71\u7801\u548c\u4e32\u53e3\u5360\u7528\u95ee\u9898\uff1a\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u63a5\u6536\u4e71\u7801\u548c\u4e32\u53e3\u5360\u7528\u7684\u95ee\u9898\uff0c\u8fd9\u4e9b\u95ee\u9898\u53ef\u80fd\u7531\u591a\u79cd\u56e0\u7d20\u5f15\u8d77\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u786c\u4ef6\u6545\u969c\u3001\u8f6f\u4ef6\u914d\u7f6e\u9519\u8bef\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u9762\u4e34\u7684\u4e3b\u8981\u6311\u6218\u5305\u62ec\u6297\u5e72\u6270\u80fd\u529b\u8f83\u5f31\u3001\u4f20\u8f93\u8ddd\u79bb\u9650\u5236\u3001\u7535\u6e90\u566a\u58f0\u95ee\u9898\u3001\u5e03\u5c40\u548c\u8fde\u63a5\u95ee\u9898\u3001\u786c\u4ef6\u95ee\u9898\u4ee5\u53ca\u63a5\u6536\u4e71\u7801\u548c\u4e32\u53e3\u5360\u7528\u95ee\u9898\u3002\u9488\u5bf9\u8fd9\u4e9b\u6311\u6218\uff0c\u9700\u8981\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u6765\u4f18\u5316TTL\u901a\u4fe1\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 TTL\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u5728\u73b0\u4ee3\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000TTL(\u6676\u4f53\u7ba1-\u6676\u4f53\u7ba1\u903b\u8f91)\u6280\u672f\u5728\u73b0\u4ee3\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u5e94\u7528\u6848\u4f8b\u5e7f\u6cdb\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul 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