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	<title>专注福禄克测试仪销售与技术 &#187; Power-sum near-end cross talk</title>
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		<title>【PSNEXT】- 综合功率近端串扰</title>
		<link>http://www.faxytech.com/archives/psnext-fluke.html</link>
		<comments>http://www.faxytech.com/archives/psnext-fluke.html#comments</comments>
		<pubDate>Wed, 23 Dec 2015 07:53:03 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[fluke参数解释]]></category>
		<category><![CDATA[Power-sum near-end cross talk]]></category>
		<category><![CDATA[PSNEXT]]></category>
		<category><![CDATA[综合功率近端串扰]]></category>

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		<description><![CDATA[PSNEXT- 综合功率近端串扰 的英文全称是：Power-sum near-end cross talk (PSNEXT)，从超五类布线系统开始，为了支持基于1000Base-T的千兆以太网协议，测试参数又多了一个综合功率近端串扰值，该值是考... ]]></description>
			<content:encoded><![CDATA[<p><strong><span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/psnext-fluke.html" title="PSNEXT">PSNEXT</a></span></strong>- 综合功率<span class='wp_keywordlink'><a href=" http://www.faxytech.com/archives/next.html " title="近端串扰">近端串扰</a></span> 的英文全称是：<span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/power-sum-near-end-cross-talk" title="查看 Power-sum near-end cross talk 的全部文章" target="_blank">Power-sum near-end cross talk</a></span> (<span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/psnext" title="查看 PSNEXT 的全部文章" target="_blank">PSNEXT</a></span>)，从超五类布线系统开始，为了支持基于<span style="font-family: 'Times New Roman';">1000Base-T</span><span style="font-family: 宋体;">的千兆以太网协议，测试参数又多了一个<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/psnext-fluke.html" title="综合功率近端串扰">综合功率近端串扰</a></span>值，该值是考虑在实施四对全双工传输时多对线对一对的近端串扰总和，对于千兆传输来说，该值至关重要，其问题的发生与近端串扰基本一致，同时影响更加明显。</span></p>
<p><span style="font-family: 宋体;"><a href="http://www.faxytech.com/wp-content/uploads/2015/12/dtx1800-PSnext.bmp" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-7160" title="福禄克DTX-1800仪器中PSnext" src="http://www.faxytech.com/wp-content/uploads/2015/12/dtx1800-PSnext.bmp" alt="福禄克DTX-1800仪器中PSnext" /></a></span></p>
<p>上图是福禄克<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/dtx-1800.html" title="福禄克FLUKE DTX-1800">DTX-1800</a></span>仪器上显示的PSNEXT参数。</p>
<p><span style="font-family: 宋体;"><a href="http://www.faxytech.com/wp-content/uploads/2015/12/PSNEXT-MAIN.bmp" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-7161" title="PSNEXT于主机" src="http://www.faxytech.com/wp-content/uploads/2015/12/PSNEXT-MAIN.bmp" alt="PSNEXT于主机" /></a> <a href="http://www.faxytech.com/wp-content/uploads/2015/12/PSNEXT-Remote.bmp" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-7162" title="PSNEXT 于远端" src="http://www.faxytech.com/wp-content/uploads/2015/12/PSNEXT-Remote.bmp" alt="PSNEXT 于远端" /></a><br />
</span></p>
<p>PSNEXT于主机（代表主机端的PSNEXT） ? ? ?PSNEXT于远端（代表远端机的PSNEXT）</p>
<p>&nbsp;</p>
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