拓展|原来这就是工业交换机
<section style="background-color: rgb(255, 255, 255);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -20px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">1</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">工业交换机与行业交换机有什么区别?</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="font-size: 14px;color: rgb(75, 72, 72);line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><span style="color: rgb(249, 110, 87);box-sizing: border-box;"><strong style="box-sizing: border-box;">最大的区别在于：</strong></span><span style="letter-spacing: 1.2px;box-sizing: border-box;">工业级交换机在设计上</span></p><p style="box-sizing: border-box;">遵循了更多的工业级要求，<span style="letter-spacing: 1.2px;box-sizing: border-box;">因此具有比普通交换机更宽的工作温度范围</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">（海康工业交换机工作温度为-30℃~70℃）、更高的防护性能（IP30甚至更高）</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">以及还有无风扇设计等等</span></p><p style="box-sizing: border-box;"><span style="color: rgb(249, 110, 87);box-sizing: border-box;"><strong style="box-sizing: border-box;">总之工业交换机最最主要的就是：</strong></span></p><p style="box-sizing: border-box;"><span style="letter-spacing: 1.2px;box-sizing: border-box;">其适应恶劣环境的能力比普通交换机强。</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">但是行业交换机一般功能（软件特性）上</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">要远远比工业交换机丰富</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">（工业交换机主要是用于接入层，</span></p><p style="box-sizing: border-box;">强调的是防护性、环境适应性）。<span style="letter-spacing: 1.2px;box-sizing: border-box;">海康所有型号工业交换机均为二层，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">如果需要用到三层功能，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">请选择行业机型（-H型）。</span></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -20px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">2</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">工业交换机支持POE吗？</strong></p><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">需要配置光模块吗？</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="font-size: 14px;color: rgb(75, 72, 72);line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">工业交换机<strong style="box-sizing: border-box;"><span style="color: rgb(249, 110, 87);box-sizing: border-box;">不支持POE</span></strong>。<span style="letter-spacing: 1.2px;box-sizing: border-box;">工业交换机都是</span><strong style="letter-spacing: 1.2px;box-sizing: border-box;"><span style="color: rgb(249, 110, 87);box-sizing: border-box;">内置光模块</span></strong><span style="letter-spacing: 1.2px;box-sizing: border-box;">的，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">所以不需要另外配置。</span></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -20px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">3</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">什么是级联型、环网型、混合型？</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: -30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="font-size: 24px;color: rgb(71, 193, 168);letter-spacing: -10px;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="font-size: 14px;color: rgb(75, 72, 72);line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">这是我们对工业交换机产品的一个简单分类，<span style="letter-spacing: 1.2px;box-sizing: border-box;">级联型说明该款型号可以用于级联组网，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">环网型说明它可以用来组建环网，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">混合型同样可用于级联组网但不支持环网功能</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">（混合的原意是指其端口形态丰富，</span></p><p style="box-sizing: border-box;"><span style="letter-spacing: 1.2px;box-sizing: border-box;">如：</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">DS-3D258F-A（</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">4个百兆光口，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">3个百兆电口、</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">1个千兆电口、1个千兆光口）。</span></p><p style="box-sizing: border-box;"><span style="letter-spacing: 1.2px;box-sizing: border-box;">如果只是用于级联组网，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">这三个类型的工业交换机均可搭配使用；</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">但是</span><strong style="letter-spacing: 1.2px;box-sizing: border-box;"><span style="color: rgb(249, 110, 87);box-sizing: border-box;">如果要组建环网，则只能使用环网型。</span></strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -20px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">4</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;line-height: 1.9;letter-spacing: 1px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">环网型交换机可以和普通交换机组建环网吗？</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: -30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="font-size: 18px;color: rgb(71, 193, 168);box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="font-size: 14px;color: rgb(75, 72, 72);line-height: 1.9;letter-spacing: 1.2px;box-sizing: border-box;"><p style="box-sizing: border-box;">使用环网型工业交换机组环网，<strong style="letter-spacing: 1.2px;box-sizing: border-box;"><span style="color: rgb(249, 110, 87);box-sizing: border-box;">环网接点只能是环网型的工业交换机型号</span></strong><span style="letter-spacing: 1.2px;box-sizing: border-box;">，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">目前有DS-3D224F-A、DS-3D228F-A，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">不能掺杂其他型号交换机，</span><span style="letter-spacing: 1.2px;box-sizing: border-box;">如行业型号DS-3E2528-H等。</span></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -15px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">5</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">工业交换机级联注意事项？</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: -20px 0% 20px;text-align: right;box-sizing: border-box;"><section class="" style="background-color: rgb(255, 129, 36);height: 1px;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="text-align: justify;font-size: 14px;line-height: 1.8;box-sizing: border-box;"><p style="white-space: normal;box-sizing: border-box;">工业交换机在使用光口级联时，一定要配对；</p><p style="white-space: normal;box-sizing: border-box;">即一端用A口，另一端必须用B口，不能同时出现A对A、B对B的情况，如下图所示。</p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;overflow: hidden !important;box-sizing: border-box;"></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -15px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">6</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">可以支持多少台级联，若组环网、节点数量？</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: -20px 0% 20px;text-align: right;box-sizing: border-box;"><section class="" style="background-color: rgb(255, 129, 36);height: 1px;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: -30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="font-size: 24px;color: rgb(71, 193, 168);box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="text-align: justify;font-size: 14px;color: rgb(75, 72, 72);line-height: 1.8;box-sizing: border-box;"><p style="white-space: normal;box-sizing: border-box;">级联理论上是没有数量限制的，如果使用千兆光口级联，可以参照以下带宽计算模型。环网节点建议单个网控制在20台以内。</p><p style="white-space: normal;box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="text-align: justify;font-size: 14px;color: rgb(75, 72, 72);line-height: 1.8;box-sizing: border-box;"><p style="white-space: normal;box-sizing: border-box;">工业交换机的光口都是千兆的，如果通过光口级联，考虑到以太网链路开销，有效带宽利用率在75%，通常会有一定的预留（30%），所以我们是按45%来计算，如此一来，最后一级交换机到中心的带宽为450M，如果IPC的规格均相同，假设为10Mbps，那么该段级联区域共计可承载IPC为45路，设每台工业交换机接入4台IPC，则共计可级联45/4=11台（先下取整）。</p><p style="white-space: normal;box-sizing: border-box;">其实原则就是看设备间的互连带宽，假如A、B间为1000M，可用带宽为450M，那么A这边就可以接45台摄像机，而B承载的自身和A的流量之和，因此AB级联后，AB总共接入的摄像机数量也是45台，而不是AB分别能接45台，同理，若还有C承载了ABC的流量之和，即为ABC共计只能接入45台摄像机。然后再计算每台交换机接入多少台摄像机就可以得出级联的台数了。</p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 20px 0% 10px;text-align: center;box-sizing: border-box;"><section class="" style="display: inline-block;width: 85%;vertical-align: top;background-color: rgb(94, 188, 198);box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="font-size: 13px;margin: -15px 0% 3px;box-sizing: border-box;"><section class="" style="display: inline-block;border-width: 1px;border-style: solid;border-color: rgba(255, 155, 225, 0);background-color: rgb(255, 255, 255);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(94, 188, 198);box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">9</strong></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: 5px 0% 10px;box-sizing: border-box;"><section class="" style="color: rgb(255, 255, 255);font-size: 14px;box-sizing: border-box;"><p style="box-sizing: border-box;"><strong style="box-sizing: border-box;">组建环网，距离太长的问题？</strong></p></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin: -20px 0% 20px;text-align: right;box-sizing: border-box;"><section class="" style="background-color: rgb(255, 129, 36);height: 1px;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="display: inline-block;width: 100%;vertical-align: top;border-style: dotted;border-width: 1px;border-radius: 0px;border-color: rgb(5, 85, 80);padding: 10px;box-sizing: border-box;"><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: -30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section class="" style="font-size: 24px;color: rgb(71, 193, 168);box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="text-align: justify;font-size: 14px;color: rgb(75, 72, 72);line-height: 1.8;box-sizing: border-box;"><p style="white-space: normal;box-sizing: border-box;">在使用环网型工业交换机组建环网时，可能会出现光纤距离过长的情况（环网节点手拉手相连，最后一个节点回来与第一个节点连接时，距离会产生过长的问题，超出光口传输距离限制），如下图所示。</p><p style="white-space: normal;box-sizing: border-box;"><br style="box-sizing: border-box;"></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;overflow: hidden !important;box-sizing: border-box;"></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="box-sizing: border-box;"><section class="" style="text-align: justify;font-size: 14px;line-height: 1.8;box-sizing: border-box;"><p style="white-space: normal;box-sizing: border-box;"><span style="letter-spacing: 0px;line-height: 1.8;box-sizing: border-box;"><br style="box-sizing: border-box;"></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="letter-spacing: 0px;line-height: 1.8;box-sizing: border-box;">此时建议错开组环，如下图所示。</span><br style="box-sizing: border-box;"></p><p style="white-space: normal;box-sizing: border-box;"><span style="letter-spacing: 0px;line-height: 1.8;box-sizing: border-box;"><br style="box-sizing: border-box;"></span></p></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;overflow: hidden !important;box-sizing: border-box;"></section></section></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="margin-top: 0.5em;margin-bottom: 0.5em;text-align: center;box-sizing: border-box;"> <section class="" style="width: 0.6em;height: 0.6em;margin: -0.9em auto 0.9em;box-sizing: border-box;"><section style="width: 100%;height: 100%;margin-left: 1px;border-radius: 100%;background-color: rgb(249, 110, 87);box-sizing: border-box;"></section></section></section></section><section class="Powered-by-XIUMI V5" style="box-sizing: border-box;" powered-by="xiumi.us"><section class="" style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;"><section class="" style="max-width: 100%;vertical-align: middle;display: inline-block;overflow: hidden !important;box-sizing: border-box;"></section></section></section></section><p><br></p>
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