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标题: 请教一个问题,可能大家平时也没有注意过。 [打印本页]

作者: caxysj    时间: 2010-6-21 13:08
标题: 请教一个问题,可能大家平时也没有注意过。
<p>网线有UTP 5E ,UTP 6E,UTP 5B</p>
<p>其中这个B个E分别代表什么意思?</p>
<p>6类线有 UTP 6E的吧</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
作者: LIZH718    时间: 2010-6-21 19:40
我也不太懂,刚入行。5E是超五类,6E是超6类,5B可能是5类的意思。
作者: yanzj    时间: 2010-6-21 20:06
好象不提超六类吧
作者: yinlijun    时间: 2010-6-22 15:57
求解。。。
作者: ycbsz    时间: 2010-6-23 10:07
不明白。没有听过
作者: 恶魔的温柔    时间: 2010-6-25 16:37
<p>那都是简称,你可以去具体了解一下</p>
作者: 看世界    时间: 2010-6-25 21:52
不明白    。。   关注中。。
作者: 橙橙小猪    时间: 2010-6-26 07:01
【金正昆全集】会展礼仪(2009年8月出版,最新)
作者: lanyork    时间: 2010-6-26 09:59
<li><a title="Category 1="1"  cable" href="http://en.wikipedia.org/wiki/Category_1_cable"><b>Cat 1</b></a>: <font color="red">Currently unrecognized by TIA/EIA.</font> Previously used for <a title="Plain old="old"  telephone="telephone"  service" href="http://en.wikipedia.org/wiki/Plain_old_telephone_service">POTS</a> telephone communications, ISDN and doorbell wiring.
<li><a title="Category 2="2"  cable" href="http://en.wikipedia.org/wiki/Category_2_cable"><b>Cat 2</b></a>: <font color="red">Currently unrecognized by TIA/EIA.</font> Previously was frequently used on 4&nbsp;Mbit/s <a title="Token ring" href="http://en.wikipedia.org/wiki/Token_ring">token ring</a> networks.
<li><a title="Category 3="3"  cable" href="http://en.wikipedia.org/wiki/Category_3_cable"><b>Cat 3</b></a>: <font color="green">Currently defined in <a title="TIA/EIA-568-B" href="http://en.wikipedia.org/wiki/TIA/EIA-568-B">TIA/EIA-568-B</a>,</font> used for data networks using frequencies up to 16&nbsp;MHz. Historically popular for 10&nbsp;Mbit/s <a title="Ethernet" href="http://en.wikipedia.org/wiki/Ethernet">Ethernet</a> networks.
<li><a title="Category 4="4"  cable" href="http://en.wikipedia.org/wiki/Category_4_cable"><b>Cat 4</b></a>: <font color="red">Currently unrecognized by TIA/EIA.</font> Defined up to 20&nbsp;MHz, and was frequently used on 16&nbsp;Mbit/s token ring networks.
<li><strong class="selflink"><b>Cat 5</b></strong>: <font color="red">Currently unrecognized by TIA/EIA.</font> Defined up to 100&nbsp;MHz, and was frequently used on 100&nbsp;Mbit/s Ethernet networks. May be unsuitable for 1000BASE-T gigabit ethernet.
<li><a title="Category 5="5"  cable" href="http://en.wikipedia.org/wiki/Category_5_cable#Category_5"><b>Cat 5e</b></a>: <font color="green">Currently defined in <a title="TIA/EIA-568-B" href="http://en.wikipedia.org/wiki/TIA/EIA-568-B">TIA/EIA-568-B</a>.</font> Defined up to 100&nbsp;MHz, and is frequently used for both 100&nbsp;Mbit/s and 1000BASE-T Gigabit Ethernet networks.
<li><a title="Category 6="6"  cable" href="http://en.wikipedia.org/wiki/Category_6_cable"><b>Cat 6</b></a>: <font color="green">Currently defined in <a title="TIA/EIA-568-B" href="http://en.wikipedia.org/wiki/TIA/EIA-568-B">TIA/EIA-568-B</a>.</font> Defined up to 250&nbsp;MHz, more than double category 5 and 5e.
<li><a title="Category 6="6"  cable" href="http://en.wikipedia.org/wiki/Category_6_cable#Category_6a"><b>Cat 6a</b></a>: <font color="green">Currently defined in <a class="new" title="ANSI/TIA/EIA-568-B.2-10 (page does="does"  not="not"  exist)" href="http://en.wikipedia.org/w/index.php?title=ANSI/TIA/EIA-568-B.2-10&amp;action=edit&amp;redlink=1">ANSI/TIA/EIA-568-B.2-10</a> and <a title="ISO/IEC 11801" href="http://en.wikipedia.org/wiki/ISO/IEC_11801">Amendment 1 and 2 of ISO/IEC 11801</a>.</font> Defined up to 500&nbsp;MHz, double that of category 6. Suitable for <a class="mw-redirect" title="10 gigabit="gigabit"  Ethernet" href="http://en.wikipedia.org/wiki/10_gigabit_Ethernet#10GBASE-T">10GBase-T</a>.
<li><a title="Category 7="7"  cable" href="http://en.wikipedia.org/wiki/Category_7_cable"><b>Cat 7</b></a>: <font color="green">Currently defined in <a title="ISO/IEC 11801" href="http://en.wikipedia.org/wiki/ISO/IEC_11801">ISO/IEC 11801</a> Class F cabling.</font> Defined up to 600&nbsp;MHz. This standard specifies four individually-shielded pairs (S/FTP) inside an overall shield.
<li><a title="Category 7="7"  cable" href="http://en.wikipedia.org/wiki/Category_7_cable#Category_7a"><b>Cat 7a</b></a>: <font color="green">Currently defined in <a title="ISO/IEC 11801" href="http://en.wikipedia.org/wiki/ISO/IEC_11801">Amendment 1 and 2 of ISO/IEC 11801</a> Class FA cabling.</font> Defined up to 1,000&nbsp;MHz. Cable constructions is S/FTP. </li>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>没有5B这种线~&nbsp; E表示为 “超”。</p>
作者: taian0123    时间: 2010-6-26 11:56
<p>不懂,学习求解中</p>
作者: liaozixiang    时间: 2010-6-30 15:42
<p>Class EA/Cat 6A增强型六类布线系统,即我们常说的超六类</p>
作者: 天狼星主    时间: 2010-7-2 18:01
&nbsp;不懂
作者: cm3120041    时间: 2010-7-22 16:41
学习中
作者: w247741945    时间: 2010-7-22 17:35
E可以当做增强型的意思看。。5类是普通,,5e就是超5,,,俗称增强型网线
作者: yyinnan    时间: 2010-7-22 21:58
<p>没听说过5b</p>
作者: zjjlugang    时间: 2010-7-23 08:53
学习
作者: rabbitdance    时间: 2010-7-23 09:20
没听过5B,6E,超五类是5E,一般说的超6类指的是6A
作者: chenzhichao0601    时间: 2010-7-23 10:09
还真没听过5B呵呵
作者: yzq191412069    时间: 2010-7-23 10:48
不明白。。。
作者: liutongxin    时间: 2010-7-23 14:11
没有5B这种线
作者: xianfodao    时间: 2010-7-24 10:45
B?你在哪家歪厂进的线哦????
作者: lzyplier    时间: 2010-7-24 21:46
<p>看看</p>
作者: lzyplier    时间: 2010-7-24 21:47

作者: leontao    时间: 2010-7-24 22:54
好像没有见到过5B,LZ传张5B的图来看看呢




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