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> </p>
<p> </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 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 MHz. Historically popular for 10 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 MHz, and was frequently used on 16 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 MHz, and was frequently used on 100 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 MHz, and is frequently used for both 100 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 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&action=edit&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 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 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 MHz. Cable constructions is S/FTP. </li>
<p> </p>
<p> </p>
<p>没有5B这种线~ 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
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
啊作者: 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