什么是POE和POC
<pstyle=" overflow-wrap: break-word; letter-spacing: normal; orphans: 2; widows: 2; word-spacing: 0px; white-space: normal; box-sizing: border-box; list-style: none;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans CN", sans-serif, "Apple Color Emoji", "Segoe UI Emoji" color: rgb(5, 7, 59)">POE和POC是两种不同的供电技术，主要应用在网络设备和视频传输等领域。以下是关于POE和POC的详细介绍：</p><h3 style=" overflow-wrap: break-word; letter-spacing: normal; orphans: 2; widows: 2; word-spacing: 0px; white-space: normal; box-sizing: border-box; list-style: none;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans CN", sans-serif, "Apple Color Emoji", "Segoe UI Emoji" color: rgb(5, 7, 59); border: none">POE（Power Over Ethernet）</h3>
<ol style=" overflow-wrap: break-word; letter-spacing: normal; orphans: 2; widows: 2; word-spacing: 0px; white-space: normal; box-sizing: border-box; list-style-image: none;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans CN", sans-serif, "Apple Color Emoji", "Segoe UI Emoji" color: rgb(5, 7, 59)">
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<pstyle=" overflow-wrap: break-word; box-sizing: border-box; list-style: none">定义：POE，即以太网供电技术，是一种在现有的以太网布线基础架构不作改动的情况下，为一些基于IP的终端（如IP电话、AP、IP摄像头等）传输数据信号的同时，还能为此类设备提供直流供电的技术。</p>
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<pstyle=" overflow-wrap: break-word; box-sizing: border-box; list-style: none">工作原理：POE技术通过CAT.5及以上的网线，在差分线上传输数字网络信号的同时，给受电设备（PD）供电。供电设备（PSE）会检测并分类PD，然后通过网络电缆的数据线上的直流电源，以供给PD所需的电力。同时，PSE还会在网络电缆的数据线上传输数据。</p>
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<pstyle=" overflow-wrap: break-word; box-sizing: border-box; list-style: none">优势：</p>
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<li style=" overflow-wrap: break-word; list-style: none; box-sizing: border-box">简化了布线，降低了成本。</li>
<li style=" overflow-wrap: break-word; list-style: none; box-sizing: border-box">提高了部署的灵活性，特别是在终端设备需要安装在距离地面比较高的天花板或室外时。</li>
<li style=" overflow-wrap: break-word; list-style: none; box-sizing: border-box">提供了更稳定和可靠的电力供应，确保了设备的持续运行。</li>
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<pstyle=" overflow-wrap: break-word; box-sizing: border-box; list-style: none">应用领域：POE技术广泛应用于网络摄像头、监控设备、医疗设备、教育技术设备、零售行业POS系统以及工业自动化领域的传感器、监控设备和控制系统等。</p>
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<h3 style=" overflow-wrap: break-word; letter-spacing: normal; orphans: 2; widows: 2; word-spacing: 0px; white-space: normal; box-sizing: border-box; list-style: none;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans CN", sans-serif, "Apple Color Emoji", "Segoe UI Emoji" color: rgb(5, 7, 59); border: none">POC（Power Over Coaxia）</h3>
<ol style=" overflow-wrap: break-word; letter-spacing: normal; orphans: 2; widows: 2; word-spacing: 0px; white-space: normal; box-sizing: border-box; list-style-image: none;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans CN", sans-serif, "Apple Color Emoji", "Segoe UI Emoji" color: rgb(5, 7, 59)">
<li style=" overflow-wrap: break-word; list-style: inherit; box-sizing: border-box">定义：POC，即基于同轴线的供电技术，是一种在同轴电缆传输信号的同时又能传输高清视频和电源供电的技术，三者在一根同轴线上传输。</li>
<li style=" overflow-wrap: break-word; list-style: inherit; box-sizing: border-box">工作原理：POC技术利用同轴电缆作为传输介质，在同轴电缆中叠加传输信号、高清视频和电源供电。</li>
<li style=" overflow-wrap: break-word; list-style: inherit; box-sizing: border-box">特点：POC技术相对POE技术来说，应用较少，但在特定的应用场景（如同轴视频监控系统）中可能具有优势。</li>
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<pstyle=" overflow-wrap: break-word; letter-spacing: normal; orphans: 2; widows: 2; word-spacing: 0px; white-space: normal; box-sizing: border-box; list-style: none;Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans CN", sans-serif, "Apple Color Emoji", "Segoe UI Emoji" color: rgb(5, 7, 59)">综上所述，<a href="https://www.ebyte.com/news/3702.html" style="margin: 0px; padding: 0px; overflow-wrap: break-word; color: rgb(51, 102, 153);">POE和POC</a>是两种不同的供电技术，各有其特点和应用领域。POE技术以其广泛的适用性和灵活性在网络设备和视频传输等领域得到了广泛应用，而POC技术则可能在特定的应用场景中具有独特的优势。</p>
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