千家论坛_智能建筑与智能家居技术交流社区

标题: 六类水晶头和五类水晶头区别是什么及五类模块和六类模块的区别 [打印本页]

作者: chenhui384148 时间: 2009-10-15 21:26
标题: 六类水晶头和五类水晶头区别是什么及五类模块和六类模块的区别
请教大家
不甚感激

作者: dintek 时间: 2009-10-16 09:52
首先：六类五类符合的标准不一样
再次：NXET值不一样
三、线规也不一样
四、耐插拔的次数也不一样
五、所能承受的最大拉力也不一样
六、最重要的是支持的带宽不同
七、端子脚位间距也不一样，其串音效果也不同

作者: l05611002 时间: 2009-10-16 10:34
看了楼上的回答  我更迷惑了

作者: 黄炜 时间: 2009-10-16 10:39
不懂，请来个大侠！谢谢

作者: 李杰南南 时间: 2009-10-21 11:20
学习了

作者: miumu 时间: 2009-10-26 15:16
不懂，请来个大侠！谢谢

作者: qrwei 时间: 2009-10-27 12:24
<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">    有如六类电缆及接插件（水晶头），六类跳线是高精密产品，需要在极为稳定的环境下生产及测试，以确保产品的性能表现，所以<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">TIA<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准，建议六类跳线应用于工厂内特定环境下控制生产，而不应用于安装现场随便制作而成，所以自己卡6类水晶头，一般真正能通过测试的机会不大，也只是当超5类用，说是6类的也只是心理安慰，或者说是对6类系统的一种误解。<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">             <span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">虽然外表上六类与超五类模块没有多大的区别，但六类模块有更高的传输性能。例如：在<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">100MHZ<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">范围下，一<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"> <span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">个超五类模块的<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">NEXT<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">值是<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">43db,<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">而六类模块的值是<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">54db<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。换句话说，一个超五类模块相比于六类模块会产生<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">12<span style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New="New" Roman'; mso-hansi-font-family: 'Times New="New" Roman'; mso-bidi-font-family: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">倍的噪音，而这个性能改善有赖于科技的改进、生产程序的改善、物料的控制等，以致大大增加成本。<span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Times New="New" Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">

作者: atxdzwuqi 时间: 2009-10-27 13:23
六类比超五类贵

作者: siduoli555 时间: 2009-10-27 16:42
学习

作者: yu0033 时间: 2009-10-28 11:37
大部分人只能用六类线当成超五类来用。呵呵

作者: xuriwr 时间: 2009-10-28 11:48
 六类、超五类都是综合布线的标准。 我想你若想了解，六类、超五类水晶头及六类、超五类模块的区别。 最好是先查一下，什么是超五类、什么是六类。 这个明白了。你的问题就明白了。

作者: wwwxbp 时间: 2009-10-28 13:44
学习

作者: yaojie1411 时间: 2009-10-28 14:32
学习

作者: nbhope07yang 时间: 2010-10-23 15:42
不错~

欢迎光临千家论坛_智能建筑与智能家居技术交流社区 (http://bbs.qianjia.com/)