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class="none"><img src="static/image/common/arw_r.gif" class="vm" alt="回帖奖励" /></span> <span class="pipe show">|</span><a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=298887&extra=&ordertype=2" class="show">正序浏览</a> <span class="pipe show">|</span><a href="javascript:;" onclick="readmode($('thread_subject').innerHTML, 1191858);" class="show">阅读模式</a> </div> </div> </div><div class="pct"><style type="text/css">.pcb{margin-right:0}</style><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1191858"> <i class="pstatus"> 本帖最后由 飞速光纤-polly 于 2016-8-31 14:25 编辑 </i><br /> <br /> <div align="left"><font color="#000000"><font face="宋体"><font size="3">如今，40G网络已经逐步发展成为长距离网络传输应用的骨干网。而40G QSFP+ SR4光模块被广泛应用在40G短距离网络传输中。一般来说，40G QSFP+ SR4光模块可以在850nm波长环境下工作，在OM4多模中可支持高达150米的40G光纤网络传输。QSFP+ SR4光模块采用MTP/MPO双通道网络传输接口设计，只需搭配不同的连接<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>，便可保证在不同的应用中以多种方法将QSFP+ SR4光模块与其它设备相连。此外，由于40G网络布线比10G更为困难，往往需要更多的光纤跳线和间隔，下面将介绍几种高密度QSFP+ SR4光模块布线方法，供大家参考。</font></font></font></div><div align="left"><font face="宋体"><font style="font-size:10.5pt"><font color="#000000"> </font></font></font></div><div align="left"><strong><font face="宋体"><font style="font-size:12pt"><br /> </font></font></strong></div><div align="left"><strong><font face="宋体"><font style="font-size:12pt">40G QSFP+ SR4光模块40G到40G的传输中应用</font></font></strong></div><div align="left"><font face="宋体"><font size="3"><font color="#000">在</font><font color="#000">40G光纤网络环境下进行40G到40G的传输。如图1简单说明了如何通过QSFP+ SR4光模块实现40G到40G的多模传输。在两个40G交换机上分别插入两个QSFP+ SR4光模块。那么这两个光模块可以通过MTP主干多模光纤跳线连接起来。这是QSFP + SR4光模块最简单的连接使用方法。</font></font></font></div><div align="center"> <ignore_js_op> <img style="cursor:pointer" id="aimg_96160" aid="96160" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/201608/31/140559gf6sffk9650sd32f.jpg" file="data/attachment/forum/201608/31/140559gf6sffk9650sd32f.jpg.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_96160_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>A_副本_副本.jpg</strong> <em class="xg1">(38.02 KB, 下载次数: 34)</em></p> <p> <a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=OTYxNjB8YTY5Njg1Yjh8MTc2NjM1NzE4OXwwfDI5ODg4Nw%3D%3D&nothumb=yes" target="_blank">下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_96160" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=96160&handlekey=savephoto_96160">保存到相册</a> </p> <p class="xg1 y">2016-8-31 14:05 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> </div><div align="center"><font face="宋体">图</font>1</div><br /> <div align="left"><font size="3"><font color="#000000"><font face="宋体">在某些情况下，同一时间和同一地点都需要与</font><font face="宋体">40G光模块连接，这意味着增加了两种光纤跳线的数量和布线难度。为了便于更好的线缆管理和更高密度的布线，图2为您展示48口1U机架式MTP机箱的连接方法。在标准1U机架式机箱中可以容纳多达四个12口MTP光纤适配器面板。在48口MTP机箱的帮助下，简化40G网络下的线缆管理。</font></font></font></div><div align="center"> <ignore_js_op> <img style="cursor:pointer" id="aimg_96161" aid="96161" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/201608/31/140641hls8k72pn8n6kzks.jpg" file="data/attachment/forum/201608/31/140641hls8k72pn8n6kzks.jpg.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_96161_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>B_副本_副本.jpg</strong> <em class="xg1">(197.31 KB, 下载次数: 34)</em></p> <p> <a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=OTYxNjF8OTE5MGFhNGF8MTc2NjM1NzE4OXwwfDI5ODg4Nw%3D%3D&nothumb=yes" target="_blank">下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_96161" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=96161&handlekey=savephoto_96161">保存到相册</a> </p> <p class="xg1 y">2016-8-31 14:06 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> </div><div align="center"><font face="宋体">图</font>2</div><br /> <div align="left"><font color="#000000"><strong><font face="宋体"><font style="font-size:12pt">40G QSFP+ SR4光模块40G到</font></font></strong><strong><font face="宋体"><font style="font-size:12pt">1</font></font></strong><strong><font face="宋体"><font style="font-size:12pt">0G的传输中应用</font></font></strong></font></div><div align="left"><font face="宋体"><font size="3"><font color="#000000">QSFP+ SR4是一个平行光模块，这意味着，它各使用四个光纤接口同时进行接收。40G的光纤信号可以被分成4个10G信号，以满足40G到10G网络传送的需求。光纤芯数在10G分配端增加。通常可以用来熔接MTP-8LC分支光纤跳线。为了更好的线缆管理，我们建议采用1U 96口机箱，将MTP盒子前端的四个10G LC端口与HD MTP 40G端口相连。四个10G-SR SFP+盒式机箱，插在10G交换机/端口处，可以被连接到相应的LC端口上，实现40G到10G之间的双工网络传输。</font></font></font></div><div align="center"> <ignore_js_op> <img style="cursor:pointer" id="aimg_96162" aid="96162" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/201608/31/140720zx9a4zk242krq426.jpg" file="data/attachment/forum/201608/31/140720zx9a4zk242krq426.jpg.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_96162_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>C_副本_副本.jpg</strong> <em class="xg1">(64.94 KB, 下载次数: 34)</em></p> <p> <a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=OTYxNjJ8Zjk1OTNkZmJ8MTc2NjM1NzE4OXwwfDI5ODg4Nw%3D%3D&nothumb=yes" target="_blank">下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_96162" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=96162&handlekey=savephoto_96162">保存到相册</a> </p> <p class="xg1 y">2016-8-31 14:07 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> </div><div align="center"><font face="宋体">图</font>3</div><br /> <div align="left"><font face="宋体"><font size="3">对于高密度网络布线，我们仍推荐使用如图3，48口MTP 1U机架式机箱。它可以提供高密度的40G MTP网络布线。MTP-8LC分支光纤跳线可采用40G到10G之间传输信号（如下图4所示）。</font></font></div><div align="center"> <ignore_js_op> <img style="cursor:pointer" id="aimg_96163" aid="96163" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/201608/31/140752pwi06wzmlsllmm64.jpg" file="data/attachment/forum/201608/31/140752pwi06wzmlsllmm64.jpg.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_96163_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>D_副本_副本.jpg</strong> <em class="xg1">(41.4 KB, 下载次数: 34)</em></p> <p> <a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=OTYxNjN8MjhiOWNiNzR8MTc2NjM1NzE4OXwwfDI5ODg4Nw%3D%3D&nothumb=yes" target="_blank">下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_96163" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=96163&handlekey=savephoto_96163">保存到相册</a> </p> <p class="xg1 y">2016-8-31 14:07 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> </div><div align="center"><font face="宋体">图</font>4</div><br /> <div align="left"><font face="宋体"><font style="font-size:12pt"> </font></font></div><div align="left"><strong><font face="宋体"><font style="font-size:12pt">结论</font></font></strong></div><div align="left"><font face="宋体"><font size="3">根据其并行传输模式，QSFP+ SR4光模块可以满足多种灵活性布线网络应用。上述仅列举几个常用的连接方法，对于QSFP+ SR4光模块的详细布线方法取决于实际应用和网络布线环境。其他相关产品的连接方法列在下表中，飞速光纤（Feisu.com）愿与大家一同学习，共同进步。</font></font></div><div align="left"><div align="center"> <ignore_js_op> <img style="cursor:pointer" 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