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 <title><![CDATA[为什么有的用户用RS485传不到1200米？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156.html]]></link>
 <description><![CDATA[Latest 50 replies of 为什么有的用户用RS485传不到1200米？]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加中继器吧，否则肯定不行的！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1479464.html]]></link>
 <author><![CDATA[liujunbo111]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Tue, 27 Aug 2013 01:04:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[干拢也是问题，这里因干拢通迅常报错。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1479444.html]]></link>
 <author><![CDATA[prince188]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Tue, 27 Aug 2013 00:21:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1479416.html]]></link>
 <author><![CDATA[ganxiangbao]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Mon, 26 Aug 2013 16:46:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21][s:28][s:32][s:17][s:39][s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1478273.html]]></link>
 <author><![CDATA[houxiyong]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Sat, 24 Aug 2013 01:21:18 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习拉]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1476805.html]]></link>
 <author><![CDATA[wuming9999]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Tue, 20 Aug 2013 01:19:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第3楼catfree于2012-11-19 12:41发表的&nbsp;&nbsp;:
必须强弱电分开加双绞线，加锡纸屏蔽
[/quote]
为什么要用双绞线&nbsp;&nbsp;一直没搞懂这个问题&nbsp;&nbsp;求赐教]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1474329.html]]></link>
 <author><![CDATA[月光蛋炒饭]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Mon, 12 Aug 2013 00:40:24 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1454865.html]]></link>
 <author><![CDATA[yuchai001]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Mon, 17 Jun 2013 00:50:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[理论上告诉你了要传送1200,波特率在9600才能传那么远,还要考虑干扰!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1454850.html]]></link>
 <author><![CDATA[tkggtdkjpl]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Mon, 17 Jun 2013 00:21:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[增长见识了啦]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1454681.html]]></link>
 <author><![CDATA[gzqzh]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Sun, 16 Jun 2013 09:51:43 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[導線決定一切~]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1453463.html]]></link>
 <author><![CDATA[momo0720]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Thu, 13 Jun 2013 01:15:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[RS485/422选用什么电缆好 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1450937.html]]></link>
 <author><![CDATA[qisong423]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Wed, 05 Jun 2013 05:11:30 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1439310.html]]></link>
 <author><![CDATA[飞仔]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Sun, 05 May 2013 14:42:48 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[必须强弱电分开加双绞线，加锡纸屏蔽]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1379598.html]]></link>
 <author><![CDATA[catfree]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Mon, 19 Nov 2012 04:41:36 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[长见识]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1378664.html]]></link>
 <author><![CDATA[kefang084]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Fri, 16 Nov 2012 09:24:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习啦&nbsp;&nbsp;[s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1414156#1378476.html]]></link>
 <author><![CDATA[pmq2657416]]></author>
 <category><![CDATA[资料互助]]></category>
 <pubdate><![CDATA[Fri, 16 Nov 2012 02:38:03 +0000]]></pubdate>
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