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 <title><![CDATA[RS232不足之处，那个说法正确？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969.html]]></link>
 <description><![CDATA[Latest 50 replies of RS232不足之处，那个说法正确？]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[手册说15M]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1702485.html]]></link>
 <author><![CDATA[于国红]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 28 Sep 2015 14:02:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[RS 232传输距离短，可考虑485，那个长。呵呵]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1697284.html]]></link>
 <author><![CDATA[saintpluto87]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 11 Sep 2015 06:20:11 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[25米没有问题，有时候看现场环境]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694711.html]]></link>
 <author><![CDATA[lizhiliang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Sep 2015 06:18:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[官方数据，15米]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694699.html]]></link>
 <author><![CDATA[firedphoenix]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Sep 2015 05:55:06 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[RS232确实是短距离传输]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694281.html]]></link>
 <author><![CDATA[unorder]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Sep 2015 00:53:45 +0000]]></pubdate>
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<item>
 <title><![CDATA[Re:不足之处，那个说法正确？]]></title>
 <description><![CDATA[RS232通讯距离短，速率低，单端传送]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694238.html]]></link>
 <author><![CDATA[wwwjun168]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 31 Aug 2015 14:22:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[15米左右，如果用屏蔽好点的线，三五十米也没问题，再长就没试过了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694225.html]]></link>
 <author><![CDATA[wang0214]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 31 Aug 2015 13:05:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我触摸屏与PLC 232通讯，10米的线有时候就会出现通讯延时的，触摸屏响应比较慢，这个要看实际情况的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694154.html]]></link>
 <author><![CDATA[yy249677480]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 31 Aug 2015 06:41:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[手册上说15米，我实际使用过25米。50米这个没试过。

原文一句话里不应该一会用英尺，一会用米的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694153.html]]></link>
 <author><![CDATA[ymmfa]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 31 Aug 2015 06:37:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;没有50米，适用距离50英尺即1楼所说的15米左右。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694042.html]]></link>
 <author><![CDATA[zhtokokk]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 31 Aug 2015 00:18:18 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[50英尺=15.239999976835米 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1527969#1694028.html]]></link>
 <author><![CDATA[最远是多远]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 30 Aug 2015 16:30:49 +0000]]></pubdate>
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