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	<title>专注福禄克测试仪销售与技术 &#187; ANEXT</title>
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		<title>福禄克DSX-8000外部串扰ANEXT测试方法</title>
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		<pubDate>Fri, 27 Apr 2018 06:49:26 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[ANEXT]]></category>
		<category><![CDATA[外部串扰]]></category>

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		<description><![CDATA[外部串扰(Alien Crosstalk) ? 临近布线链路之间的串扰 ? 普遍规律: 1) 影响随着所传输信号频率的增加而增加 2) 链路中的距离越近影响越大 3) 绞结率相同的线对间影响更大 4) 绞结率越低影响越大 5) ... ]]></description>
			<content:encoded><![CDATA[<p><span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/%e5%a4%96%e9%83%a8%e4%b8%b2%e6%89%b0" title="查看 外部串扰 的全部文章" target="_blank">外部串扰</a></span>(Alien Crosstalk)</p>
<p>? 临近布线链路之间的串扰</p>
<p>? 普遍规律:</p>
<p>1) 影响随着所传输信号频率的增加而增加</p>
<p>2) 链路中的距离越近影响越大</p>
<p>3) 绞结率相同的线对间影响更大</p>
<p>4) 绞结率越低影响越大</p>
<p>5) 链路间并行的距离越长影响越大</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2018/04/ANEXT.png" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-9950" title="ANEXT" src="http://www.faxytech.com/wp-content/uploads/2018/04/ANEXT.png" alt="" width="637" height="323" /></a></p>
<p><span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/anext" title="查看 ANEXT 的全部文章" target="_blank">ANEXT</a></span> 测试的被干扰链路选择方法:</p>
<p>1) 长度最长的链路</p>
<p>2) 在同一捆中的电缆</p>
<p>3) 靠近配线架中心的链路</p>
<p>&nbsp;</p>
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