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	<title>专注福禄克测试仪销售与技术 &#187; cat8</title>
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		<title>通信与8类网络布线最新技术标准与应用研讨会</title>
		<link>http://www.faxytech.com/archives/cat8-meeting.html</link>
		<comments>http://www.faxytech.com/archives/cat8-meeting.html#comments</comments>
		<pubDate>Wed, 18 Sep 2019 01:51:03 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[cat8]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=11107</guid>
		<description><![CDATA[2019年9月10日，由广东省电线电缆行业协会和中国信通院泰尔实验室等联合主办的“CCCS 2019 通信与网络布线最新技术标准与应用研讨会”在广东东莞成功召开。来自中国信通院泰尔实验室、上海... ]]></description>
			<content:encoded><![CDATA[<p>2019年9月10日，由广东省电线电缆行业协会和中国信通院泰尔实验室等联合主办的“CCCS 2019 通信与网络布线最新技术标准与应用研讨会”在广东东莞成功召开。来自中国信通院泰尔实验室、上海电缆研究院、中电23所、北京电信规划设计院等科研院所以及来自是德科技、太平洋光电科技、嘉兴海棠等设备和线缆制造商的近160名专家出席了本次研讨会。</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2019/10/tx.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-11108" title="tx" src="http://www.faxytech.com/wp-content/uploads/2019/10/tx.jpg" alt="" width="640" height="1061" /></a></p>
<p>&nbsp;</p>
<p>中国信通院泰尔系统实验室基础产品与设施部主任王晨代表主办方致开幕词。王晨对目前我国信息通信领域建设的现状和中国信通院泰尔实验室在通信线缆、网络布线等方向的工作内容进行了简要的介绍，并对本次与会的专家和来宾表示了热烈的欢迎。</p>
<p>&nbsp;</p>
<p>研讨会第一项内容是广东省电线电缆行业协会秘书长林伟发布了《超五类非屏蔽网线行业自检报告》，对前日开展的超五类非屏蔽网线的行业自检结果进行了多个角度的分析与探讨，指出了目前在超五类非屏蔽网线行业中存在的问题。</p>
<p>&nbsp;</p>
<p>随后，中国信通院泰尔系统实验室基础产品与设施部副主任刘泰做了题为《ICT发展新时代通信电缆发展机遇与挑战》的主题演讲，对我国近年来ICT基础设施建设的成果进行了总结，并从5G、数据中心、物联网与智慧城市、工业网络与车载网络、新型电子产品等五个方面详细分析了未来通信电缆的发展机遇，最后从创新的角度提出了通信电缆发展所面临的挑战。</p>
<p>上海电缆研究所副所长江斌做了题为《IEC高频数据线缆标准动态跟踪及技术解析》的主题演讲，详细解析了高频数据电缆的标准体系、<span class='wp_keywordlink'><a href="http://www.faxytech.com" title="综合布线">综合布线</a></span>市场现状以及数据电缆关键参数的测试方法和工艺提升途径。</p>
<p>原中国移动通信集团设计院有限公司高级工程师张宜做了题为《浅析宽带网络结构与布线应用技术》的主题演讲，对云技术、5G、视频、骨干网、数据中心和边缘云等应用场景下的宽带传输主流应用技术和8类布线进行了深入的讲解。</p>
<p>KEYSIGHT高级射频微波应用工程师吴辉做了题为《高速线缆测试的挑战与解决方案》的主题演讲，对高速线缆的发展趋势、测试需求以及现有的测试解决方案和案例进行了详细的介绍。</p>
<p>&nbsp;</p>
<p>美国西蒙公司大中国区技术服务部经理陈宇通做了题为《浅析8类和TERA》的主题演讲，简述了8类数据电缆的标准化进程，并对西蒙的“TERA”连接器进行了介绍。</p>
<p>北京电信规划设计院有限公司高级工程师孙景毅做了题为《基地级大型云数据中心光网络探讨》的主题演讲，介绍了数据中心综合布线的标准体系和相关技术的发展现状，并以联通云基地为例，探讨了大型数据中心的布线原则和技术要求。</p>
<p>&nbsp;</p>
<p>美国福禄克网络技术指导专家尹岗做了题为《8类线最新标准和测试方法以及制造工艺》的主题演讲，对8类数据电缆的最新标准和测试方法进行了系统的梳理，并对其制造工艺进行了分析。</p>
<p>罗森泰耐世隆有限公司的中国区销售经理罗波做了题为《高性能数据电缆制造解决方案》的主题演讲，对8类数据电缆的导体实心和发泡绝缘的生产工艺和生产设备进行了详细的分析介绍。</p>
<p>&nbsp;</p>
<p>太平洋（聊城）光电科技有限公司研发副总方照诒做了题为《<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/vcsel.html" title="VCSEL垂直腔面发射激光管">VCSEL</a></span>技术简介与未来市场发展趋势》的主题演讲， 对VCSEL技术进行了介绍并对未来光模块和光芯片市场的发展趋势进行了分析。</p>
<p>国家信息传输线质量监督检验中心高级工程师殷海成做了题为《八类对称电缆的布局长度考虑》的主题演讲，从应用的角度对八类对称电缆在实际使用中的布局长度进行了综合的分析。</p>
<p>&nbsp;</p>
<p>VDE测试认证研究院副总经理何绍锋做了题为《局域网用线标准化进程，市场需求及性能评估》的主题演讲，从网络可靠性、数据线缆要求、标准化问题、以太网线缆市场、高频性能评估等多个角度对局域网用线的现状进行了分析。</p>
<p>嘉兴海棠电子有限公司工程部主管姚戌辰做了题为《八类网线制造技术与难点》的主题演讲，对八类网线在屏蔽结构、芯线等生产环节的难点进行了介绍。</p>
<p>&nbsp;</p>
<p>乐庭电线工业（惠州）有限公司技术总监陈丹做了题为《SFP/QSFP高速通信线的应用和制造》的主题演讲，对SFP/QSFP高速通信线的应用场景、技术参数和生产工艺进行了详细的介绍。</p>
<p>研讨会的最后还组织了专家高峰论坛，与会专家与现场的来宾针对通信电缆、连接器的生产、测试等方面的问题进行了深入的交流和探讨。</p>
<p>&nbsp;</p>
<p>伴随着信息通信领域的飞速发展和5G技术的迅速铺开，更加丰富的应用场景、更加庞大的数据传输量以及更高的传输速度都需要新的通信线缆和网络布线技术进行支撑。本次研讨会是一场重点关注通信线缆和网络布线前沿技术的重要会议,聚集了诸多业内精英。通过本次研讨会，有力地促进了通信线缆和网络布线领域的技术发展，为未来信息通信领域的进一步发展打下了坚实的基础。</p>
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		<title>Cat8 八类网线是什么？</title>
		<link>http://www.faxytech.com/archives/cat8.html</link>
		<comments>http://www.faxytech.com/archives/cat8.html#comments</comments>
		<pubDate>Tue, 19 Feb 2019 04:15:43 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[cat8]]></category>
		<category><![CDATA[CAT8类]]></category>
		<category><![CDATA[网线]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=10538</guid>
		<description><![CDATA[若您身处于网络通信行业，相信您应该了解一些以太网线缆，比如说超五类网线、六类网线和七类网线等等。但是您知道Cat8 八类网线&#160;是什么吗？它与五类网线、六类/超六类网线及七类/超... ]]></description>
			<content:encoded><![CDATA[<p><br/></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">若您身处于网络通信行业，相信您应该了解一些以太<span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/%e7%bd%91%e7%ba%bf" title="查看 网线 的全部文章" target="_blank">网线</a></span>缆，比如说超五类网线、六类网线和七类网线等等。但是您知道Cat8 八类网线&nbsp;是什么吗？它与五类网线、六类/超六类网线及七类/超七类网线有着怎么样的区别呢？下面就由深圳连讯达带您认识新一代网络跳线——Cat8 八类网线吧。<br/></span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<h3 _mce_style="margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; font-size: 20px; color: #333333; line-height: 24px; border-bottom: 1px solid #eeeeee;" style="font-size: 20px; font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; white-space: normal; margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; color: rgb(51, 51, 51); line-height: 24px; border-bottom: 1px solid rgb(238, 238, 238);"><span _mce_style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: #000000;" style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: rgb(0, 0, 0);">Cat8 八类网线是什么？</span></h3>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">Cat8 八类网线是最新一代双屏蔽（SFTP）的网络跳线，它拥有两个导线对，可支持2000MHz的带宽，且传输速率高达40Gb/s，但它最大传输距离仅有30m，故一般用于短距离数据中心的服务器、交换机、配线架以及其他设备的连接。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<h3 _mce_style="margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; font-size: 20px; color: #333333; line-height: 24px; border-bottom: 1px solid #eeeeee;" style="font-size: 20px; font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; white-space: normal; margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; color: rgb(51, 51, 51); line-height: 24px; border-bottom: 1px solid rgb(238, 238, 238);"><span _mce_style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: #000000;" style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: rgb(0, 0, 0);">Cat8 八类网线的标准</span></h3>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">Cat8 八类网线的相关标准由美国通信工业协会(TIA )TR-43委员会于2016年正式发布，具体如下：</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">1．符合IEEE 802.3bq 25G / 40GBASE-T标准，规定了Cat8 八类网线的最小传输速率，可支持25 Gbps和40 Gbps的网络布线。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">2．符合ANSI / TIA-568-C.2-1标准，规定了Cat8 八类网线的通道和永久链路，并包含电阻不平衡、TCL和ELTCTL的限制。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">3．符合ANSI / TIA-1152-A标准，规定了Cat8 八类网线现场测试仪测量和精度要求。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">4．符合ISO / IEC-11801标准，规定了I/II&nbsp;类Cat8 八类网线的通道和永久链路。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<h3 _mce_style="margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; font-size: 20px; color: #333333; line-height: 24px; border-bottom: 1px solid #eeeeee;" style="font-size: 20px; font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; white-space: normal; margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; color: rgb(51, 51, 51); line-height: 24px; border-bottom: 1px solid rgb(238, 238, 238);"><span _mce_style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: #000000;" style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: rgb(0, 0, 0);">Cat8 八类网线的类别</span></h3>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">在ISO / IEC-11801标准里，根据通道级别将Cat8 八类网线分为了I&nbsp;类和II类，其中I类Cat8 八类网线屏蔽类型为U/FTP和F/UTP，能向后兼容Cat5e、Cat6、Cat6a的RJ45连接器接口；II类Cat8 八类网线屏蔽类型为F/FTP 或 S/FTP，可向后兼容TERA或GG45连接器接口。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<h3 _mce_style="margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; font-size: 20px; color: #333333; line-height: 24px; border-bottom: 1px solid #eeeeee;" style="font-size: 20px; font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; white-space: normal; margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; color: rgb(51, 51, 51); line-height: 24px; border-bottom: 1px solid rgb(238, 238, 238);"><span _mce_style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: #000000;" style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: rgb(0, 0, 0);">Cat8 八类网线与超五类网线、六类网线、超六类网线及七类/超七类网线的区别</span></h3>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">目前市面上常见的网线有超五类网线、六类网线、超六类网线、七类网线及超七类网线这五种类型，那么Cat8 八类网线与这些网线之间存在着怎样的区别呢？下面就是以上网线的参数表：</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><img _mce_style="border: 0px;" title="pic2.jpg" src="http://www.faxytech.com/wp-content/plugins/ueditor/ueditor/php/upload/28671550463419.jpg" _mce_src="http://www.faxytech.com/wp-content/plugins/ueditor/ueditor/php/upload/20190218/15504633213875.jpg" alt="" style="border: 0px;"/></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">由上表可以看出，Cat8 八类网线和七/超七类网线一样，都属于屏蔽型双绞线，能应用于数据中心、高速和带宽密集的地方，虽然Cat8 八类网线的传输距离不如七类/超七类网线的远，但是它的速率和频率却是远超于七类/超七类网线。Cat8 八类网线和超五类网线、六类/超六类网线之间的区别较大，主要体现在速率、频率、传输距离以及应用等方面。</span></p>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<h3 _mce_style="margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; font-size: 20px; color: #333333; line-height: 24px; border-bottom: 1px solid #eeeeee;" style="font-size: 20px; font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; white-space: normal; margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; color: rgb(51, 51, 51); line-height: 24px; border-bottom: 1px solid rgb(238, 238, 238);">超五类网线/六类网线/超六类网线/七类网线的产品推荐</h3>
<table cellspacing="0" width="815" class="mceItemTable">
<tbody _mce_style="margin: 0px; padding: 0px; box-sizing: border-box;" style="margin: 0px; padding: 0px; box-sizing: border-box;">
<tr _mce_style="margin: 0px; padding: 0px; box-sizing: border-box;" style="margin: 0px; padding: 0px; box-sizing: border-box;">
<th class="change_words" _mce_style="margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: #e9f5ff; color: #333333; font-weight: 400; line-height: 30px; font-size: 14px;" width="22%" style="cursor: text; border-top-width: 1px; border-style: dashed; border-right-color: rgb(187, 187, 187); border-bottom-color: rgb(187, 187, 187); border-left-color: rgb(187, 187, 187); margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: rgb(233, 245, 255); color: rgb(51, 51, 51); font-weight: 400; line-height: 30px; font-size: 14px;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">产品名称</span></th>
<th class="change_words" _mce_style="margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: #e9f5ff; color: #333333; font-weight: 400; line-height: 30px; font-size: 14px;" width="22%" style="cursor: text; border-top-width: 1px; border-style: dashed; border-right-color: rgb(187, 187, 187); border-bottom-color: rgb(187, 187, 187); border-left-color: rgb(187, 187, 187); margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: rgb(233, 245, 255); color: rgb(51, 51, 51); font-weight: 400; line-height: 30px; font-size: 14px;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">屏蔽类型</span></th>
<th class="change_words" _mce_style="margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: #e9f5ff; color: #333333; font-weight: 400; line-height: 30px; font-size: 14px;" width="34%" style="cursor: text; border-top-width: 1px; border-style: dashed; border-right-color: rgb(187, 187, 187); border-bottom-color: rgb(187, 187, 187); border-left-color: rgb(187, 187, 187); margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: rgb(233, 245, 255); color: rgb(51, 51, 51); font-weight: 400; line-height: 30px; font-size: 14px;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">频带宽度</span></th>
<th class="change_words" _mce_style="margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: #e9f5ff; color: #333333; font-weight: 400; line-height: 30px; font-size: 14px;" width="22%" style="cursor: text; border-top-width: 1px; border-style: dashed; border-right-color: rgb(187, 187, 187); border-bottom-color: rgb(187, 187, 187); border-left-color: rgb(187, 187, 187); margin: 0px; padding: 10px 15px; box-sizing: border-box; background-color: rgb(233, 245, 255); color: rgb(51, 51, 51); font-weight: 400; line-height: 30px; font-size: 14px;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">速率</span></th>
</tr>
<tr _mce_style="margin: 0px; padding: 0px; box-sizing: border-box;" style="margin: 0px; padding: 0px; box-sizing: border-box;">
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center; border-left-color: #eeeeee;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">3m Cat5e超五类屏蔽(FTP)网络跳线，卡沟设计，蓝色，PVC</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">屏蔽双绞线（FTP）</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">100MHz</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">1000Mbps</span></td>
</tr>
<tr _mce_style="margin: 0px; padding: 0px; box-sizing: border-box;" style="margin: 0px; padding: 0px; box-sizing: border-box;">
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center; border-left-color: #eeeeee;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">3m Cat6六类非屏蔽(UTP)网络跳线，卡沟设计，黄色，PVC</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">非屏蔽双绞线(UTP)</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">250MHz</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">1000Mbps</span></td>
</tr>
<tr _mce_style="margin: 0px; padding: 0px; box-sizing: border-box;" style="margin: 0px; padding: 0px; box-sizing: border-box;">
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center; border-left-color: #eeeeee;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">3m Cat6a超六类双屏蔽(SFTP)网络跳线，卡沟设计，灰色，PVC</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">双屏蔽双绞线（SFTP）</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">500MHz</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">10Gbps</span></td>
</tr>
<tr _mce_style="margin: 0px; padding: 0px; box-sizing: border-box;" style="margin: 0px; padding: 0px; box-sizing: border-box;">
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center; border-left-color: #eeeeee;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">3m Cat7七类屏蔽(SFTP)网络跳线，卡沟设计，黑色，PVC</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">双屏蔽双绞线（SFTP）</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">600MHz</span></td>
<td class="change_words" _mce_style="margin: 0px; padding: 12px 15px; box-sizing: border-box; font-size: 14px; line-height: 30px; border-bottom-color: #eeeeee; border-right-color: #eeeeee; color: #666666; text-align: center;" style="color: rgb(102, 102, 102); font-size: 14px; margin: 0px; cursor: text; border-style: dashed; border-color: rgb(187, 187, 187) rgb(238, 238, 238) rgb(238, 238, 238) rgb(187, 187, 187); padding: 12px 15px; box-sizing: border-box; line-height: 30px; text-align: center;"><span _mce_style="color: #000000;" style="color: rgb(0, 0, 0);">10Gbps</span></td>
</tr>
</tbody>
</table>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><br/></p>
<h3 _mce_style="margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; font-size: 20px; color: #333333; line-height: 24px; border-bottom: 1px solid #eeeeee;" style="font-size: 20px; font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; white-space: normal; margin: 10px 0px 0px; padding: 0px 0px 12px; box-sizing: border-box; color: rgb(51, 51, 51); line-height: 24px; border-bottom: 1px solid rgb(238, 238, 238);"><span _mce_style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: #000000;" style="margin: 0px 0px 5px; padding: 0px 0px 0px 12px; box-sizing: border-box; line-height: 20px; display: inline-block; position: relative; color: rgb(0, 0, 0);">总结</span></h3>
<p _mce_style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;" style="font-family: Georgia, &quot;Times New Roman&quot;, &quot;Bitstream Charter&quot;, Times, serif; font-size: 13px; white-space: normal;"><span _mce_style="color: #000000;">虽然目前Cat8 八类网线的应用并不广泛，但随着网络布线对传输性能的要求越来越高，相信日后Cat8 八类网线会逐渐成为数据中心<span class='wp_keywordlink'><a href="http://www.faxytech.com" title="综合布线">综合布线</a></span>系统的主流产品。</span></p>
<p><span _mce_style="color: #000000;"><br/></span></p>
<p><br/></p>
]]></content:encoded>
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		</item>
		<item>
		<title>Category8 Cat8类布线相关问题</title>
		<link>http://www.faxytech.com/archives/cat8-faq.html</link>
		<comments>http://www.faxytech.com/archives/cat8-faq.html#comments</comments>
		<pubDate>Fri, 19 Oct 2018 02:21:29 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[cat8]]></category>
		<category><![CDATA[Fluke]]></category>
		<category><![CDATA[softing]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=10307</guid>
		<description><![CDATA[问：第8类标准什么时候会批准？ ANSI / TIA-568-C.2-1标准于2016年6月批准发布，该标准包含8类组件构建的支持25GBASE-T和40GBASE-T应用的8类布线要求.ISO / IEC 11801- 1包含了对8.1类组件构建的Class I类布线... ]]></description>
			<content:encoded><![CDATA[<p><strong>问：第8类标准什么时候会批准？</strong> ANSI / TIA-568-C.2-1标准于2016年6月批准发布，该标准包含8类组件构建的支持25GBASE-T和40GBASE-T应用的8类布线要求.ISO / IEC 11801- 1包含了对8.1类组件构建的Class I类布线和8.2类组件构建的Class II类布线的要求，已于2017年11月获得批准。</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2018/10/CAT8.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-10308" title="CAT8" src="http://www.faxytech.com/wp-content/uploads/2018/10/CAT8.jpg" alt="" width="474" height="266" /></a></p>
<p><strong>问：8类布线的主要特点是什么？</strong></p>
<p><strong></strong>它们将如何影响数据中心基础设施？Class I类，Class II类和8类布线的特性为2 GHz，旨在支持包含不超过2个连接器的30米布线通道。这些通道和他们支持的新兴25G / 40GBASE-T应用专门针对在服务器到交换机连接的数据中心“边缘”进行部署。数据中心设计人员可以安排他们的机架和机柜布局，以支持当前这些位置的最大30米通道连接，当技术变得可用时，将能够很好地迁移到25G / 40GBASE-T。</p>
<p><strong>问：8类布线的性能如何比其前代版本有所改进？</strong></p>
<p><strong></strong>有趣的是，对于除<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/return_loss.html" title="回波损耗">回波损耗</a></span>以外的每个传输参数，ISO / IEC FA级别的信道和永久链路限制比针对Class I类和8类至1 GHz规定的更严格。在内部串扰参数的情况下，差异是显著的; FA类的指标超过Class I级和8类性能20 dB！Class I类和第八类确实有一个优势，因为它们的带宽比FA类增加一倍。 Class II要求是业界所见过的平衡双绞线布线的最严格性能规范。最终的结果是，Class I类，Class II类和8类布线将为支持25 Gb / s和更高的传输速率提供前所未有的信噪比余量。  ?<a href="http://www.faxytech.com/wp-content/uploads/2018/10/cat8-2.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-10318" title="cat8-2" src="http://www.faxytech.com/wp-content/uploads/2018/10/cat8-2.jpg" alt="" width="500" height="165" /></a></p>
<p><strong>问：8类布线主要用于支持40GBASE-T吗？</strong></p>
<p><strong></strong> <strong> </strong>Class I类，Class II类和8类布线具有独特的通道拓扑，经过优化，可支持25GBASE-T和40GBASE-T服务器交换数据中心的连接。</p>
<p><strong>问：8类布线是否可以向下兼容较低类别的布线？</strong></p>
<p><strong></strong> <strong> </strong>Class I类，Class II类和8类布线将向下兼容较低等级和布线类别。例如，可以在类EA频道中使用类别8连接器，并确保类EA频道的性能。</p>
<p><strong>问：对于类别8是否需要新型连接器，或者是否可以使用模块化八位模块化RJ-45接口？</strong></p>
<p><strong></strong> I类和8类布线规范支持模块化RJ-45类型连接器。仅当类别8.2电缆与非RJ-45接口（如西蒙TERA?连接器）配合使用时，才能实现与Class II类布线相关的性能。</p>
<p><strong>问：第8类电缆与第6A类和第7A类电缆物理相似，可以利用现有的基础设施和终端方法安装第8类电缆吗？</strong></p>
<p><strong></strong> <strong> </strong>Class I类，Class II类和8类布线将具有类似的“外观”和“感觉”，以降低布线的等级并且安装方法不会有显着差异。这种布线可以安装在现有的通道和导管中;但是，现有的基础设施需要升级以支持25GBASE-T和40GBASE-T。</p>
<p><strong>问：8类布线是否需要更多功率？</strong></p>
<p><strong></strong> <strong> </strong>Class I类，Class II类和8类布线不需要更多的电力来运行。实际上，由于较低的直流电阻和<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/insertion-loss.html" title="插入损耗">插入损耗</a></span>，这些电缆可以更有效地支持远程供电应用（例如以太网供电或“PoE”）并提供更好的散热。然而，更高速的以太网设备倾向于消耗更多的功率，预计第一代25G / 40GBASE-T设备每个端口的功耗将比10GBASE-T设备消耗更多。随着技术的发展，25G / 40GBASE-T设备端口功耗很可能会与10GBASE-T设备端口功耗相当。</p>
<p><strong>问：8类布线的到来是否会影响采用7A类布线？</strong> <strong> </strong>于Class II类通道的性能可以通过目前市售的许多7A类连接器（例如西蒙TERA?）来实现，所以最终用户不应该看到Class I类和8类产品的到来，这会显着改变可用高速布线选项。事实上，Class II类布线所提供的卓越性能可能会鼓励更多的用户采用由非RJ型连接器构建的全屏蔽布线解决方案。此外，尽管保证25GBASE-T应用支持还为时过早，但现在已经努力确定现有已安装的FA / 7A类电缆的性能</p>
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		<title>哪些连接器系统可以支持“CAT8”？</title>
		<link>http://www.faxytech.com/archives/cat8-conn.html</link>
		<comments>http://www.faxytech.com/archives/cat8-conn.html#comments</comments>
		<pubDate>Tue, 16 Oct 2018 08:29:34 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[ansi]]></category>
		<category><![CDATA[cat8]]></category>
		<category><![CDATA[TIA]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=10312</guid>
		<description><![CDATA[具有RJ45接口的CAT 8（ANSI / TIA）/ 8.1（ISO / IEC）连接器和具有“非RJ45”接口（例如TERA，ARJ45，GG45和MMCPRO）的CAT 8.2（仅ISO / IEC）连接器可用于构建高达2000MHz带宽的结构化布线。支持25 / 40GBASE-T（IE... ]]></description>
			<content:encoded><![CDATA[<div>
<p>具有RJ45接口的CAT 8（ANSI / <span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/tia" title="查看 TIA 的全部文章" target="_blank">TIA</a></span>）/ 8.1（ISO / IEC）连接器和具有“非RJ45”接口（例如TERA，ARJ45，GG45和MMCPRO）的CAT 8.2（仅ISO / IEC）连接器可用于构建高达2000MHz带宽的结构化布线。支持25 / 40GBASE-T（IEEE 802.3bq）应用。</p>
</div>
<p>&nbsp;</p>
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		<title>“CAT8”是否得到批准？</title>
		<link>http://www.faxytech.com/archives/cat8-pz.html</link>
		<comments>http://www.faxytech.com/archives/cat8-pz.html#comments</comments>
		<pubDate>Mon, 15 Oct 2018 08:29:01 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[cat8]]></category>
		<category><![CDATA[ISO11801]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=10310</guid>
		<description><![CDATA[“CAT8”是否得到批准？ 是和否。 有不同版本的“CAT8”，它们处于不同的批准阶段。 美国版本的CAT8已于2016年秋季在ANSI/TIA-568-C.2-1标准中获得了批准。 ISO11801第三版国际标准中包含了两种CAT8的... ]]></description>
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<p>“CAT8”是否得到批准？</p>
</div>
<div>
<div>
<div id="c7529">
<div>
<div>
<p>是和否。</p>
<p>有不同版本的“CAT8”，它们处于不同的批准阶段。</p>
<p>美国版本的CAT8已于2016年秋季在ANSI/TIA-568-C.2-1标准中获得了批准。</p>
<p><span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/iso11801" title="查看 ISO11801 的全部文章" target="_blank">ISO11801</a></span>第三版国际标准中包含了两种CAT8的版本，将于2017年秋季获得批准。</p>
<p>&nbsp;</p>
<p>ISO 11801第三版将包含两个不同的 “CAT8” 性能等级：Class I 采用基于Class EA的RJ45连接器，这与美国的ANSI/TIA CAT8标准大致相同。Class II 采用非RJ45的连接器并且将Class FA的频率扩展至2000MHz。</p>
<p>无论是Class I还是Class II都支持40GBase-T的以太网。</p>
<p>&nbsp;</p>
<p>除了上述之外，自2014年以来还有一个TR ISO11801-9901的标准描述了基于非RJ45系统支持40GBase-T的布线。这个最早的第一版40GBase-T布线标准将在2017年被ISO11801第三版取代。</p>
<p>您还必须区分布线标准和测试标准。布线测试是在一套单独的标准中定义的。</p>
<p>&nbsp;</p>
<p>TIA 1152-A标准于2016年秋季获得批准，其中规定了基于ANSI / TIA Cat8性能等级的结构化布线认证所需的参数和准确性。</p>
<p>相应的IEC 61935-1第5版标准将于2017年秋季批准。它规定了基于ISO / IEC性能等级至Class II级的结构化布线认证所需的参数和准确性。它还区分了Class I和Class II在测试2000MHz频率时的精度极限值。</p>
<p>&nbsp;</p>
<p>两种标准定义了如何测试从CAT5E到CAT8.2元器件构成的布线，以及哪些精度需要达到2GHz频率范围。</p>
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</div>
<p>&nbsp;</p>
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		<title>CAT8类布线技术相关问题解答</title>
		<link>http://www.faxytech.com/archives/cat8-ans.html</link>
		<comments>http://www.faxytech.com/archives/cat8-ans.html#comments</comments>
		<pubDate>Tue, 09 Jan 2018 11:58:46 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[cat8]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=9603</guid>
		<description><![CDATA[Category 8 Cabling Fact Sheet Q: What is Category 8 Cabling? A: Category 8 cabling is a new category of cabling that has been developed to support 25GBASE-T and 40GBASE-T applications developed by the IEEE. &#160; Q: Who developed the Category 8 standard... ]]></description>
			<content:encoded><![CDATA[<h1 id="article-title">Category 8 Cabling Fact Sheet</h1>
<div id="article-body">
<p><strong>Q:</strong> What is Category 8 Cabling?</p>
<p><strong>A</strong>: Category 8 cabling is a new category of cabling that has been developed to support 25GBASE-T and 40GBASE-T applications developed by the IEEE.</p>
<p>&nbsp;</p>
<p><strong>Q:</strong> Who developed the Category 8 standard?</p>
<p><strong>A:</strong> The Category 8 standard was developed by the ANSI/TIA-568 standards body, more specifically, the TR42.7 committee. The document that details Category 8 cabling is ANSI/TIA-568-C.2-1, and was published in November 2016 as a standard, therefore Category 8 is no longer in a draft format.</p>
<p>&nbsp;</p>
<p><strong>Q:</strong> What is unique about Category 8 cabling as opposed to Category 6A cabling or previous balanced twisted pair copper cabling categories?</p>
<p><strong>A:</strong> Category 8 cabling has a greater throughput capability; it can support transmission of data up to 40Gbps over balanced twisted pair copper cabling. The solution is a shielded solution&#8211;there is no unshielded variant. Therefore, careful attention must be paid to shield terminations when installing the solution. All previous categories of balanced twisted pair copper cabling supported a Permanent Link Length of 90m (295’) and a channel of 100m (328’). Category 8 has a maximum Permanent Link Length of 24m (78’) and a maximum Channel length of 30m (100’) when supporting 25Gbps and 40Gbps speeds. Category 8 cabling can support data speeds of 10Gbps and lower at a full 100m (328’) Channel configuration. ?When field-testing Category 8 solutions, the installation is tested from 1MHz to 2000MHz, whereas Category 6A balanced twisted pair copper cabling is only field tested from 1MHz to 500MHz.</p>
<p>&nbsp;</p>
<p><strong>Q:</strong> What connectors does Category 8 cabling use to perform at these higher frequencies?</p>
<p><strong>A:</strong> The ANSI/TIA Category 8 solution utilizes an 8 position modular 8 connector (commonly known as RJ45) and was designed to be backward compatible with the existing 8 position modular connectors that are utilized in structured cabling from Category 5e through to Category 6A. This was a key requirement from the active equipment manufacturers to maintain compatibility with the billions of RJ45 connectors in use around the world. The international standards body is following a similar approach, their Class I links are made up of Category 8.1 components, the connectors being backward compatible with the commonly used 8 position modular style (RJ45).</p>
<p>&nbsp;</p>
<p><strong>Q:</strong> So what else are the international standards bodies doing concerning Category 8?</p>
<p><strong>A:</strong> The international standards bodies ISO and IEC have designated two cabling variants to support 25Gbps and 40Gbps; they are Category 8.1 and Category 8.2. As stated earlier, Category 8.1 components are used to construct Class I links. They are backward compatible with the RJ45 connector interface for categories 6A, 6 and 5e as specified in ISO/IEC 11801 and EN 50173. Category 8.2 components are used to construct Class II links. Category 8.2 components are backward compatible with components used to construct Class F and Class FA links.?<strong>Category 8.2 connector interfaces ARE NOT BACKWARD COMPATIBLE with the RJ45 jacks of existing cabling. </strong> The international standards bodies ISO and IEC are expected to publish a new version of ISO/IEC 11801 (Edition 3) during 2017.</p>
<p>&nbsp;</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2018/01/comparisonchart.png" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-9604" title="comparisonchart" src="http://www.faxytech.com/wp-content/uploads/2018/01/comparisonchart.png" alt="" width="593" height="82" /></a></p>
<p><em>Table 1. ?Category 8 Solution Types Comparison Chart</em></p>
<p>&nbsp;</p>
<p><strong>Q:</strong> How can I make sure my newly installed Category 8 solution will work?</p>
<p><strong>A: </strong>The standards bodies have developed new field testing standards to support these new types of Category 8 cabling links. The ANSI/TIA body published in November 2016 a newly revised field test standard. The document is ANSI/TIA-1152-A, and is an update of the older ANSI/TIA-1152 document. The new document covers the testing of Category 8 installations and all the previous Categories of 6A, 6 and 5e, in the one document. The document provides test limits for making the tests and accuracy levels for the field tester carrying out these tests. A field tester for Category 8 testing needs to meet or exceed the Level 2G accuracy requirements. Further, the international standards bodies of ISO and IEC are expected to publish a revised version of ISO/IEC 61935-1, to be Edition 5, later in 2017. This document is currently in draft format and will support the field-testing of the new Class I and Class II links, plus the testing of the existing Class D to Class FA links. This document will also introduce a new accuracy class for a field tester, to be known as Level VI.</p>
<p>&nbsp;</p>
<p><strong>Q:</strong> Do these new field test standards require new tests or different styles of tests?</p>
<p><strong>A:</strong> While the required tests will be familiar to anyone who has performed field testing on balanced copper twisted pair cabling, it needs to be understood that the accuracy requirements for the tester performing these tests has been tightened, plus the frequency range extended to 2000MHz, as mentioned previously, Level 2G Accuracy for the ANSI/TIA-1152-A standard, and Level VI for the draft ISO/IEC 61935-1 Edition 5 standard.</p>
<p>The ANSI/TIA-1152-A standard has added several new tests to the field-testing requirements, those tests are optional for the moment, plus they have clarified the wire map requirement for Level 2G testers when measuring shields for Category 8 cabling. For a Level 2 G tester, because Category 8 cabling is shielded, there is also a requirement to check the continuity of the screen to the remote end of the cabling. The actual wording is “… for Level 2G testers it is understood that the screen continuity is tested along the path of the cabling”. (Refer to section 4.2.2 of ANSI/TIA-1152-A)? This is a new requirement that only the most advanced field testers can provide. ?The optional tests that the TIA has included are; dc Loop Resistance (already a requirement in ISO/IEC 61935-1), dc Resistance Unbalance within a Pair and dc Resistance Unbalance between pairs. These resistance balance measurements will be required to certify a link is capable of supporting the proposed IEEE802.3bt Power over Ethernet Plus Plus (PoE ++) standard.</p>
<p>&nbsp;</p>
<p><strong>Q:</strong> Are the two field test standards similar or will I need two different test regimes?</p>
<p><strong>A:</strong> Yes, the two test standards are very similar, below are two comparison tables showing ANSI/TIA and ISO/IEC requirements for field-testing. One field test instrument and one test regime will cover all requirements.</p>
<p>&nbsp;</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2018/01/fieldtestingrequirements.png" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-9605" title="fieldtestingrequirements" src="http://www.faxytech.com/wp-content/uploads/2018/01/fieldtestingrequirements.png" alt="" width="586" height="398" /></a></p>
<p>&nbsp;</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2018/01/installationtestingrequirements.png" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-9606" title="installationtestingrequirements" src="http://www.faxytech.com/wp-content/uploads/2018/01/installationtestingrequirements.png" alt="" width="592" height="385" /></a></p>
</div>
<p>&nbsp;</p>
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		<title>网络分析仪招标技术选型</title>
		<link>http://www.faxytech.com/archives/wl-tech-4.html</link>
		<comments>http://www.faxytech.com/archives/wl-tech-4.html#comments</comments>
		<pubDate>Wed, 31 May 2017 07:44:22 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[技术专栏]]></category>
		<category><![CDATA[cat6]]></category>
		<category><![CDATA[cat8]]></category>
		<category><![CDATA[网络分析仪]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=8901</guid>
		<description><![CDATA[&#160; （一）支持铜缆测试功能： 1、支持以下认证测试标准：（1）GB/T 50312-2016（2）TIA 568-C.2 CAT 5e, 6, 6A, draft CAT 8（3）ISO/IEC 11801, EN 50173 Class D, E, EA, F, FA（4）Draft Class I &#38; Class II（5）永久链路... ]]></description>
			<content:encoded><![CDATA[<p>&nbsp;</p>
<p><strong>（一）支持<span class='wp_keywordlink'><a href="http://www.faxytech.com/products/testers/cable" title="铜缆测试仪">铜缆</a></span>测试功能：</strong></p>
<p>1、支持以下认证测试标准：（1）GB/T 50312-2016（2）TIA 568-C.2 CAT 5e, 6, 6A, draft CAT 8（3）ISO/IEC 11801, EN 50173 Class D, E, EA, F, FA（4）Draft Class I &amp; Class II（5）永久链路与信道（6）CAT 5e, 6, 6A, 7, 7A 与跳线2、测试频率范围 1- 2500 MHz。3、操作方式：主机\远端机同时都具有6寸灵敏触控 LCD 显示屏方便操作。4、双端自动测试最长距离：500m。5、自动测试时间 &#8211; CAT6A 9 秒。6、模块使用寿命：通道：10000次、链路：5000次。7、支持的电缆链路测试指标(通道/永久链路) ：接线图\回路电阻\长度\传输延迟和延迟偏差\<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/insertion-loss.html" title="衰减">衰减</a></span>\线对间<span class='wp_keywordlink'><a href=" http://www.faxytech.com/archives/next.html " title="近端串扰">近端串扰</a></span>功率\线对间远端衰减串扰比功率\<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/return_loss.html" title="回波损耗">回波损耗</a></span>\ACRN\PSACRN。8、高级诊断功能：回波损耗和近端串扰的时域故障定位（TDR &amp; TDX）。</p>
<p><strong>（二）支持光纤测试功能：</strong></p>
<p>1、支持测试标准： ★GB/T 50312-2016、GB 50847-2012、IEC 14763-3、TIA 568 C.3。2、双向测试850/1300 多模光纤和 1310/1550 单模光纤。3、光纤参数：衰减： 0 to 31 dB, ±0.2 dB；长度： 0 to 20,000m, ±1.5m。</p>
<p><strong>（三）扩展功能：</strong></p>
<p>1、可扩展“光纤到户”和“光纤到用户单元”的用户光纤测试，即：双向、双波长、单芯、单模、衰减与长度测试。2、可扩展测试<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/multifiber-pro.html" title="福禄克Fluke MPO">MPO</a></span> 光纤测试套件模块。3、可扩展矢量网络分析功能（VAN）模块。</p>
<p><strong>（四）专业测试结果管理软件：</strong></p>
<p>1、生成 PDF 或 CSV 格式的详细或汇总的现场报告带有相应公司的标志。2、提供详细的带有独立的标签图形的已保存的结果。3、放大图的高准确度是为分析和研究 。4、通过 USB 数据线或 USB 闪存盘。5、实现了设备和工作站之间的简单连接 。6、通过 USB 线连接实现远程控制，用作演示或教育目的。</p>
<p><strong>（五）其他特性：</strong></p>
<p>1、接口：探针接口，RJ45以太网接口，USB 接口，耳机接口，电源插口。2、外壳：橡胶包裹的高强度塑料。3、冲击：通过站立 1.5 米跌落测试。4、电源支持： AC 100-240V to 12V, 3A 电源适配器。5、输入过电压保护： 防止电信电压。6、电池：可拆卸和重复充电锂电池。7、电池容量： 大于 8 小时连续使用时间。8、内部储存容量： 2000 条铜缆图表型测试结果。9、扩展储存： 可支持64G U盘。10、支持语言：中文，英语等。11、工作<span class='wp_keywordlink'><a href="http://www.faxytech.com/products/testers/temp" title="温度测试">温度</a></span>： 0 to 40 °C。12、存放温度： 20 to 60 °C。13、相对湿度： 10% to 80%。</p>
<p>&nbsp;</p>
<p>推荐型号：FLUKE <span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/dsx8000.html" title="福禄克FLUKE DSX-8000">DSX-8000</a></span> ? ?PSIBER ?WX4500</p>
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		<title>2017 测试领域三大趋势</title>
		<link>http://www.faxytech.com/archives/2017-test.html</link>
		<comments>http://www.faxytech.com/archives/2017-test.html#comments</comments>
		<pubDate>Fri, 27 Jan 2017 01:36:53 +0000</pubDate>
		<dc:creator>深圳连讯</dc:creator>
				<category><![CDATA[新闻资讯]]></category>
		<category><![CDATA[cat8]]></category>
		<category><![CDATA[DSX-5000]]></category>
		<category><![CDATA[PoE]]></category>
		<category><![CDATA[测试技术]]></category>

		<guid isPermaLink="false">http://www.faxytech.com/?p=8489</guid>
		<description><![CDATA[今天是除夕了，连讯达祝愿所有的客户朋友除夕快乐。连讯达在这辞旧迎新之际，我们总是会预测新一年测试领域的最大发展趋势是什么。 显而易见，物联网(IoT)将仍然是所有网络布线的主要... ]]></description>
			<content:encoded><![CDATA[<p>今天是除夕了，连讯达祝愿所有的客户朋友除夕快乐。连讯达在这辞旧迎新之际，我们总是会预测新一年测试领域的最大发展趋势是什么。</p>
<p>显而易见，物联网(IoT)将仍然是所有网络布线的主要驱动力——包括从LAN到数据中心的各个环节。对于LAN，我们将会看到比以往任何时候都多的设备仍然使用双绞线<span class='wp_keywordlink'><a href="http://www.faxytech.com/products/testers/cable" title="铜缆测试仪">铜缆</a></span>网络布线；而数据中心要求高速光纤链路，并且随着企业需要访问、发送和储存的数据越来越多，对高速光纤链路的需求也将随之扩展。</p>
<p>但是从网络布线和测试的角度，这些变化意味着什么呢？我们接下来深入了解一下。</p>
<p><img title="1484876437908053748.jpg" src="http://www.flukenetworks.com.cn/ueditor/jsp/upload/image/20170120/1484876437908053748.jpg" border="0" alt="1484876437908053748.jpg" vspace="0" width="600" height="250" /></p>
<p><strong>LAN中功率更高、新应用层出不穷</strong></p>
<p>越来越多的设备连接到LAN的一个关键因素是能够采用不断改进的<span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/poe" title="查看 PoE 的全部文章" target="_blank">PoE</a></span>（Power over Ethernet）技术为这些设备供电。预计IEEE 802.3bt PoE 标准将于2017获批，我们很快就会看到通过全部四个线对提供60W功率的 3 型PoE 和90W功率的 4型PoE 。</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2017/01/POE.webp_.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-8490" title="POE" src="http://www.faxytech.com/wp-content/uploads/2017/01/POE.webp_.jpg" alt="" width="595" height="335" /></a></p>
<p>虽然 思科公司 的 UPOE 已经能够提供 60W 功率，但2017年获批的 PoE 标准将为更多支持 PoE 的设备打开大门。再加上可通过 HDBASE-T提供最高 100W 直流功率以及视频信号，为 PoE LED 照明、LED 电视、数字标牌等铺平了道路。</p>
<p>同时，许多企业会尽量充分利用已安装的设施来支持较新的技术。2016年9月批准的新2.5/5GBASE-T IEEE 802.3bz标准以5e类和6类线缆为目标，这些线仍然占据全部设施的80%以上。这些新标准主要为了支持最新的 802.11ac Wi-Fi 应用，将为2017年的更多 2.5g/5GBASE-T 产品和部署奠定基础。</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2017/01/2-5g-5GBASE-T.webp_.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-8491" title="2-5g-5GBASE-T.webp" src="http://www.faxytech.com/wp-content/uploads/2017/01/2-5g-5GBASE-T.webp_.jpg" alt="" width="600" height="303" /></a></p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2017/01/2-5g-5GBASE-T.webp_.jpg" class="highslide-image" onclick="return hs.expand(this);"></a>从测试的角度来讲，这些趋势推动了<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/resistance.html" title="直流环路电阻">直流环路电阻</a></span>和直流电阻不平衡方面的测试需求，以保证能够通过四对Type 3和Type 4 PoE 线缆进行正确的以太网传输——特别是千兆及以上以太网。而对于那些希望在现有5类和6类设施上部署最新 802.11ac Wi-Fi 的人来说，因为并非所有5e和6类线缆都支持此类速度，所以需要根据新2.5/5GBASE-T 标准对现有设施进行测试。</p>
<p>幸运的是，<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/dsx-5000.html" title="福禄克FLuke DSX-5000">DSX-5000</a></span> CableAnalyzer (使用最新固件)可以轻松完成所有这些测试。</p>
<p>&nbsp;</p>
<p><strong>数据中心中涌现的一些新名词</strong></p>
<p>为了访问、传输和储存比以往更多的信息，许多企业的数据中心通过云和托管设施帮助其实现容量和服务的低成本扩展，也有一些企业会升级自己的光纤链路。无论是何种数据中心类型，铜缆和光纤技术都在向满足这一需求方向发展。</p>
<p>随着TIA批准8类布线系统的ANSI/TIA-568-C.2-1标准，可以保证2017年将有8类布线解决方案可用于数据中心中交换机与服务器距离为30米或以下的较短连接。这些产品上市后，请关注我们对这些新标准的支持通告——以及升级现有<span class='wp_keywordlink_affiliate'><a href="http://www.faxytech.com/tag/dsx-5000" title="查看 DSX-5000 的全部文章" target="_blank">DSX-5000</a></span>的途径，以支持此类链路。</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2017/01/cat8.webp_.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-8492" title="cat8.webp" src="http://www.faxytech.com/wp-content/uploads/2017/01/cat8.webp_.jpg" alt="" width="640" height="126" /></a></p>
<p>光纤也会有一些变化。宽带多模光纤(WBMMF)，现在称为OM5，将具备953 nm波长的带宽特性以支持波分复用，这为在双工光纤连接上运行100 Gig以及未来在当前8芯<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/multifiber-pro.html" title="福禄克Fluke MPO">MPO</a></span>接口上运行400 Gig 应用打开了大门。</p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2017/01/tbc.jpg" class="highslide-image" onclick="return hs.expand(this);"><img class="alignnone size-full wp-image-8493" title="tbc" src="http://www.faxytech.com/wp-content/uploads/2017/01/tbc.jpg" alt="" width="500" height="329" /></a></p>
<p><a href="http://www.faxytech.com/wp-content/uploads/2017/01/tbc.jpg" class="highslide-image" onclick="return hs.expand(this);"></a>好消息是新OM5光纤的测试不会很复杂。除针对953 nm波长规定的的<span class='wp_keywordlink'><a href="http://www.faxytech.com/archives/insertion-loss.html" title="衰减">衰减</a></span>参数外，其所有指标均与之前的多模光纤相同。如果您现在正在按照首选方法测试850 nm和1300 nm波长，对OM5同样适用。</p>
<p>&nbsp;</p>
<p><strong>测试仪持续发展</strong></p>
<p>在我们坚信已经为2017年的测试做好准备的同时，测试仪本身的快速发展也使全球开始体验到IoT和云计算带来的诸多利益。</p>
<p>随着越来越多福禄克网络的测试仪用户逐渐熟悉、适应<span class='wp_keywordlink'><a href="http://www.faxytech.com/linkware" title="fluke Linkware">LinkWare</a></span> Live (目前已上传近三百万组结果)，2017年将有大量测试结果从任意位置上传而不是将结果带回办公室。因为可以随时随地在任何设备上与相关人员——工程师、安装人员、项目经理和顾问——共享结果，这意味着团队的整体生产力和故障排除速度都会提高。</p>
<p>而且，由最熟悉项目的人员进行远程设置，以及通过资产跟踪查看测试仪的地理位置，不但提高了准确度，还节省了时间——无论过去还是未来，这都是大势所趋。</p>
<p>&nbsp;</p>
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