千家论坛_弱电智能化技术与工程讨论(建筑智能,家居智能,人工智能)
标题:
10GBASE-SX能走单模光缆?
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作者:
MicroKiss
时间:
2009-3-16 09:54
标题:
10GBASE-SX能走单模光缆?
招标书上有一条如下:
<p><b>8</b><b>）、万兆室内单模光缆</b></p>
<p>可以支持10GBASE-SX万兆以太网应用及支持1000Base-SX千兆以太网应用，同时又可向下兼容目前的100Mbps及10Mbps以太网应用。</p>
<p> </p>
<p>我只知道1000BASE-SX只能走多模光缆,不能走单模. 而1000BASE-LX既可走多模,又可走单模不知道这个10GBASE-SX能否走单模光缆.小弟我在这抛砖引玉,哪位大侠有这方面的资料,SHOW一下,谢谢! </p>
作者:
wanguhaojie
时间:
2009-3-16 11:08
要积分的
作者:
浊世翩翩浪子
时间:
2009-3-17 10:17
<p>
</p>
作者:
hohoma
时间:
2009-3-17 10:50
<div class="storyTitle">10G光纤规范 不知对楼主有没有帮助</div>
<div class="noDisplay">=========================================================== </div>
<div class="storyInfo"> </div>
<div class="storytext">
<p>光纤凭借其质量小、容量大、传输频带高等特点而成为万兆以太网应用的首选。光收发器主要有两大类：使用多模光纤的发光二极管（LED）和使用单模光纤的激光发光器（Laser）。单模光纤虽然可以满足万兆应用的要求，但是激光发光器成本非常高，而传统的多模光纤只能在几十米的距离内支持万兆传输，无法满足网络主干的应用。为了支持万兆以太网应用，业界开发出VCSEL光源，VCSEL兼具了激光发光器件的性能（如响应速度高、传输光谱窄）和发光二极管的优势（如藕合效率高及成本低廉）。通过优化改进50/125微米光纤与VCSEL配套，可以在850nm波长上10Gb/s应用时支持300米的传输距离，同时在支持千兆应用时，传输距离可以达到900米，而成本相比普通多模光纤增加不多。因此IEEE 在2002 年6 月批准了万兆以太网标准。ISO/IEC 11801也在2002年9月正式颁布了新的多模光纤标准等级，将多模光纤重新分为OM1、OM2和OM3三类，其中OM1指目前传统62.5μm多模光纤，OM2指目前传统50μm多模光纤，OM3就是新增的50μm万兆光纤。传统的62.5μm多模光纤在850nm的带宽只有200MHz，即使在1300nm的带宽也只有 500MHz，根本就无法真正进行万兆传输，而OM3万兆50μm多模光纤在850nm的带宽可以高达2000MHz。 </p>
<p><br/>
<p></p></div>
作者:
hohoma
时间:
2009-3-17 10:50
<p>☆下表为各种光纤进行万兆传输时的带宽和最大距离： </p>
<table width="82%" align="center" border="1">
<tbody>
<tr bgcolor="#cccccc">
<td valign="center" align="middle" width="49%"><span class="style15"><font face="Verdana" size="2">光纤型号</font></span></td>
<td valign="top" align="middle" width="49%"><span class="style15"><font face="Verdana" size="2">带宽<br/>850nm<br/>Mhz*km</font></span></td>
<td valign="top" align="middle" width="49%"><span class="style15"><font face="Verdana" size="2">带宽<br/>1300nm<br/>Mhz*km </font></span></td>
<td valign="center" align="middle" colspan="2"><span class="style15"><font face="Verdana" size="2">1Gbps距离</font></span></td>
<td valign="center" align="middle" colspan="2" height="23"><span class="style15"><font face="Verdana" size="2">10Gbps距离</font></span></td>
<td valign="center" align="middle" width="51%"><span class="style15"><font face="Verdana" size="2">光纤等级</font></span></td></tr>
<tr>
<td>
<div class="style16 style17" align="center"><font size="2">多模</font></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td width="49%">
<div class="style15" align="center"><font size="2">@850nm</font></div></td>
<td width="49%">
<div class="style15" align="center"><font size="2">@1300nm</font></div></td>
<td>
<div class="style15" align="center"><font size="2">@850nm</font></div></td>
<td>
<div class="style15" align="center"><font size="2">@1300nm</font></div></td>
<td>
<div align="center"><font size="2"></font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">标准62.5/125μm</font></div></td>
<td>
<div class="style15" align="center"><font size="2">200</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">275m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">33m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">300m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">OM1</font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">标准50/125μm</font></div></td>
<td>
<div class="style15" align="center"><font size="2">400</font></div></td>
<td>
<div class="style15" align="center"><font size="2">800</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">1000m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">66m</font></div></td>
<td height="23">
<div class="style15" align="center"><font size="2">450m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">OM1</font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">标准50/125/62.5μm</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">82m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">300m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">OM2</font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">50/125μm-110</font></div></td>
<td>
<div class="style15" align="center"><font size="2">600</font></div></td>
<td>
<div class="style15" align="center"><font size="2">1200</font></div></td>
<td>
<div class="style15" align="center"><font size="2">750m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">2000m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">110m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">850m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">OM2+</font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">50/125μm-150</font></div></td>
<td>
<div class="style15" align="center"><font size="2">700</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">750m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">150m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">300m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">OM2</font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">50/125μm-300</font></div></td>
<td>
<div class="style15" align="center"><font size="2">1500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">1000m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">300m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">300m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">OM3</font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">50/125μm-550</font></div></td>
<td>
<div class="style15" align="center"><font size="2">3500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">500</font></div></td>
<td>
<div class="style15" align="center"><font size="2">1000m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">550m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">N.A </font></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">单模</font></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td>
<div class="style15" align="center"><font size="2">@1310m</font></div></td>
<td>
<div class="style15" align="center"><font size="2">@1550nm</font></div></td>
<td colspan="2">
<div class="style15" align="center"><font size="2">1310/1383/1550nm</font></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td></tr>
<tr>
<td>
<div class="style15" align="center"><font size="2">标准9/125μm</font></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td>
<div class="style15" align="center"><font size="2">5000m</font></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td>
<td colspan="2">
<div class="style15" align="center"><font size="2">10000m-40000m</font></div></td>
<td>
<div align="center"><span class="style16"><span class="style17"><font face="Verdana" size="2"> </font></span></span></div></td></tr></tbody></table><br/>☆<font size="2"><font face="Verdana"><span class="style15"><font size="3">下表为各种光纤的带宽和衰减</font></span></font></font>
<table width="82%" align="center" border="1">
<tbody>
<tr bgcolor="#cccccc">
<td valign="top" align="middle" width="22%"><span class="style15"><font face="Verdana" size="2">光纤型号</font></span></td>
<td valign="top" align="middle" colspan="3"><span class="style15"><font face="Verdana" size="2">带宽(Mhzkm)</font></span></td>
<td valign="center" align="middle" colspan="2" height="23" rowspan="2"><span class="style15"><font face="Verdana" size="2">衰减(db/km)</font></span></td></tr>
<tr bgcolor="#cccccc">
<td valign="top" align="middle" height="57"></td>
<td valign="top" align="middle" colspan="2"><span class="style15"><font face="Verdana" size="2">OFB<br/>Overfilled<br/>Bandwidth<br/>全模式带宽</font></span></td>
<td valign="top" align="middle"><span class="style15"><font face="Verdana" size="2">EMB<br/>Effective Modal<br/>Bandwidth<br/>有效模带宽</font></span></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">多模</font></span></div></td>
<td width="11%">
<div align="center"><span class="style15"><font face="Verdana" size="2">@850nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">@1300nm</font></span></div></td>
<td width="26%">
<div align="center"><span class="style15"><font face="Verdana" size="2">@850nm</font></span></div></td>
<td width="12%">
<div align="center"><span class="style15"><font face="Verdana" size="2">@850nm</font></span></div></td>
<td width="17%">
<div align="center"><span class="style15"><font face="Verdana" size="2">@1300nm</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">标准62.5/125μm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">200</font></span></div></td>
<td width="12%">
<div align="center"><span class="style15"><font face="Verdana" size="2">500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">220</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">3.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1.0</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">标准50/125μm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">510</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">3.5</font></span></div></td>
<td height="23">
<div align="center"><span class="style15"><font face="Verdana" size="2">1.5</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">50/125μm-150</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">700</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">850</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">3.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1.5</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">50/125μm-300</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">2000</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">3.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1.5</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">50/125μm-550</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">3500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">500</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">4700</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">3.0</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.7</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">单模</font></span></div></td>
<td>
<div align="center"> </div></td>
<td>
<div align="center"> </div></td>
<td>
<div align="center"> </div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">@1310nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">@1550nm</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">标准9/125μm</font></span></div></td>
<td>
<div align="center"> </div></td>
<td>
<div align="center"> </div></td>
<td>
<div align="center"> </div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.3</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.4</font></span></div></td></tr></tbody></table><br/>
作者:
hohoma
时间:
2009-3-17 10:51
☆<font size="2"><font face="Verdana"><span class="style15"><font size="3">下表尾单模光缆于不同波段的衰减和色散值</font></span></font></font>
<table width="82%" align="center" border="1">
<tbody>
<tr bgcolor="#cccccc">
<td valign="top" align="middle" width="16%" rowspan="2"></td>
<td valign="top" align="middle" width="14%" rowspan="2"></td>
<td valign="center" align="middle" width="16%" rowspan="2"><span class="style15"><font face="Verdana" size="2">标准单模光纤</font></span></td>
<td valign="center" align="middle" width="17%" rowspan="2"><span class="style15"><font face="Verdana" size="2">零水峰单模光纤</font></span></td>
<td valign="top" align="middle" colspan="2" height="22"><span class="style15"><font face="Verdana" size="2">NZDS非零色散位移光纤</font></span></td></tr>
<tr bgcolor="#cccccc">
<td valign="top" align="middle" height="14"><span class="style15"><font face="Verdana" size="2">长途网络</font></span></td>
<td valign="top" align="middle" height="14"><span class="style15"><font face="Verdana" size="2">局域网络</font></span></td></tr>
<tr>
<td rowspan="4">
<div align="center"><span class="style15"><font face="Verdana" size="2">衰减标准值（db/km）</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1310nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.33</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.34</font></span></div></td>
<td width="19%">
<div align="center"><span class="style15"><font face="Verdana" size="2">N/A</font></span></div></td>
<td width="18%">
<div align="center"><span class="style15"><font face="Verdana" size="2">0.35</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1383nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.40</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.31</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.32</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.32</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1550nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.19</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.19</font></span></div></td>
<td height="23">
<div align="center"><span class="style15"><font face="Verdana" size="2">0.20</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.20</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1625nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.21</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.21</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.21</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0.21</font></span></div></td></tr>
<tr>
<td rowspan="3">
<div align="center"><span class="style15"><font face="Verdana" size="2">色散标准值（db/km）</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1310nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">0</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">N/A</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">－11.5</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1550nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">16.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">16.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">4.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">4.5</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1625nm</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">23</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">23</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">10.5</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">8.5</font></span></div></td></tr></tbody></table><br/>☆<font size="2"><font face="Verdana"><span class="style15"><font size="3">下表为各种光源支持的传输速率</font></span></font></font>
<table width="82%" align="center" border="1">
<tbody>
<tr bgcolor="#cccccc">
<td valign="top" align="middle" width="20%"></td>
<td valign="center" align="middle" width="21%"><span class="style15"><font face="Verdana" size="2">LED</font></span></td>
<td valign="center" align="middle" width="27%" height="25"><span class="style15"><font face="Verdana" size="2">VCSEL</font></span></td>
<td valign="center" align="middle" width="32%"><span class="style15"><font face="Verdana" size="2">DFB/FP激光发光器</font></span></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">成本</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">低</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">适中</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">高</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">用途</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">多模光纤</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">多模光纤</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">单模光纤</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">最高支持应用</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">1Gbps</font></span></div></td>
<td height="23">
<div align="center"><span class="style15"><font face="Verdana" size="2">12.5Gbps</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">40Gbps</font></span></div></td></tr>
<tr>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">实际标准最高用途</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">622M bps</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">10Gbps</font></span></div></td>
<td>
<div align="center"><span class="style15"><font face="Verdana" size="2">40Gbps</font></span></div></td></tr></tbody></table>
作者:
dnew
时间:
2009-3-17 10:53
恩
作者:
yangqifu
时间:
2009-3-17 11:01
<p>应该可以的阿</p>
作者:
yinqin9685
时间:
2009-3-17 11:27
<p>收藏了</p>
<p> </p>
作者:
佛山小鸟
时间:
2009-3-17 11:40
理论上应该可以用的，实际要考虑设备、成本、等原因
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