{"id":30160,"date":"2026-07-16T15:38:32","date_gmt":"2026-07-16T07:38:32","guid":{"rendered":"https:\/\/www.cnspd.com\/?p=30160"},"modified":"2026-07-17T16:42:06","modified_gmt":"2026-07-17T08:42:06","slug":"poe-surge-protector-for-cctv-cameras-and-outdoor-network-equipment","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/","title":{"rendered":"PoE Surge Protector for CCTV Cameras and Outdoor Network Equipment"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"30160\" class=\"elementor elementor-30160\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3332dc2 e-flex e-con-boxed e-con e-parent\" data-id=\"3332dc2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1ea3abd elementor-widget elementor-widget-html\" data-id=\"1ea3abd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"lypoe41\" id=\"poe-surge-protector-guide\">\r\n\r\n  <style>\r\n    .lypoe41 {\r\n      --ly-blue: #004898;\r\n      --ly-blue-dark: #00366f;\r\n      --ly-blue-soft: #eaf3fb;\r\n      --ly-green: #157347;\r\n      --ly-green-soft: #eaf7f0;\r\n      --ly-orange: #a95000;\r\n      --ly-orange-soft: #fff4e8;\r\n      --ly-red: #a52828;\r\n      --ly-red-soft: #fff0f0;\r\n      --ly-text: #1c2936;\r\n      --ly-muted: #5e6c79;\r\n      --ly-line: #d9e1e8;\r\n      --ly-light: #f6f8fa;\r\n      --ly-white: #ffffff;\r\n      --ly-navy: #102b45;\r\n      --ly-shadow: 0 12px 34px rgba(16, 43, 68, 0.08);\r\n      width: 100%;\r\n      color: var(--ly-text);\r\n      font-family: Arial, Helvetica, sans-serif;\r\n      font-size: 17px;\r\n      line-height: 1.72;\r\n    }\r\n\r\n    .lypoe41 *,\r\n    .lypoe41 *::before,\r\n    .lypoe41 *::after {\r\n      box-sizing: border-box;\r\n    }\r\n\r\n    .lypoe41-shell {\r\n      width: min(1180px, calc(100% - 40px));\r\n      margin: 0 auto;\r\n    }\r\n\r\n    .lypoe41 a {\r\n      color: var(--ly-blue);\r\n      text-decoration-thickness: 1px;\r\n      text-underline-offset: 3px;\r\n    }\r\n\r\n    .lypoe41 img,\r\n    .lypoe41 svg {\r\n      display: block;\r\n      max-width: 100%;\r\n      height: auto;\r\n    }\r\n\r\n    .lypoe41 h2,\r\n    .lypoe41 h3,\r\n    .lypoe41 h4 {\r\n      margin-top: 0;\r\n      color: #132536;\r\n      line-height: 1.28;\r\n    }\r\n\r\n    .lypoe41 h2 {\r\n      margin-bottom: 18px;\r\n      font-size: 34px;\r\n    }\r\n\r\n    .lypoe41 h3 {\r\n      margin-bottom: 12px;\r\n      font-size: 24px;\r\n    }\r\n\r\n    .lypoe41 h4 {\r\n      margin-bottom: 8px;\r\n      font-size: 19px;\r\n    }\r\n\r\n    .lypoe41 p {\r\n      margin: 0 0 18px;\r\n    }\r\n\r\n    .lypoe41 ul,\r\n    .lypoe41 ol {\r\n      margin: 0 0 20px;\r\n      padding-left: 24px;\r\n    }\r\n\r\n    .lypoe41 li {\r\n      margin-bottom: 8px;\r\n    }\r\n\r\n    .lypoe41 strong {\r\n      color: #132536;\r\n    }\r\n\r\n    .lypoe41-section {\r\n      padding: 70px 0;\r\n      border-top: 1px solid var(--ly-line);\r\n      scroll-margin-top: 100px;\r\n    }\r\n\r\n    .lypoe41-section:first-of-type {\r\n      border-top: 0;\r\n    }\r\n\r\n    .lypoe41-intro {\r\n      padding: 18px 0 42px;\r\n    }\r\n\r\n    .lypoe41-eyebrow {\r\n      display: inline-flex;\r\n      align-items: center;\r\n      gap: 8px;\r\n      margin-bottom: 14px;\r\n      color: var(--ly-blue);\r\n      font-size: 13px;\r\n      font-weight: 800;\r\n      letter-spacing: 0.09em;\r\n      text-transform: uppercase;\r\n    }\r\n\r\n    .lypoe41-eyebrow::before {\r\n      content: \"\";\r\n      display: block;\r\n      width: 28px;\r\n      height: 3px;\r\n      border-radius: 10px;\r\n      background: var(--ly-blue);\r\n    }\r\n\r\n    .lypoe41-lead {\r\n      max-width: 930px;\r\n      color: #344658;\r\n      font-size: 21px;\r\n      line-height: 1.65;\r\n    }\r\n\r\n    .lypoe41-meta-strip {\r\n      display: flex;\r\n      flex-wrap: wrap;\r\n      gap: 10px;\r\n      margin: 24px 0 0;\r\n    }\r\n\r\n    .lypoe41-meta-item {\r\n      padding: 7px 12px;\r\n      border: 1px solid #d7e2ec;\r\n      border-radius: 999px;\r\n      background: #f7fafc;\r\n      color: #40576b;\r\n      font-size: 13px;\r\n      font-weight: 700;\r\n      line-height: 1.35;\r\n    }\r\n\r\n    .lypoe41-answer {\r\n      margin-top: 28px;\r\n      padding: 30px;\r\n      border: 1px solid #b8d1e8;\r\n      border-left: 6px solid var(--ly-blue);\r\n      border-radius: 16px;\r\n      background: linear-gradient(135deg, #f2f8fd 0%, #ffffff 100%);\r\n      box-shadow: var(--ly-shadow);\r\n    }\r\n\r\n    .lypoe41-answer-label {\r\n      display: inline-block;\r\n      margin-bottom: 12px;\r\n      padding: 5px 11px;\r\n      border-radius: 999px;\r\n      background: var(--ly-blue);\r\n      color: #ffffff;\r\n      font-size: 12px;\r\n      font-weight: 800;\r\n      letter-spacing: 0.06em;\r\n      text-transform: uppercase;\r\n    }\r\n\r\n    .lypoe41-answer p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n\r\n    .lypoe41-answer-grid {\r\n      display: grid;\r\n      grid-template-columns: repeat(3, minmax(0, 1fr));\r\n      gap: 16px;\r\n      margin-top: 24px;\r\n    }\r\n\r\n    .lypoe41-answer-item {\r\n      padding: 19px;\r\n      border: 1px solid #d3e2ee;\r\n      border-radius: 12px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-answer-item span {\r\n      display: block;\r\n      margin-bottom: 7px;\r\n      color: var(--ly-blue);\r\n      font-size: 13px;\r\n      font-weight: 800;\r\n      text-transform: uppercase;\r\n    }\r\n\r\n    .lypoe41-answer-item p {\r\n      margin: 0;\r\n      font-size: 15px;\r\n      line-height: 1.55;\r\n    }\r\n\r\n    .lypoe41-figure {\r\n      width: 100%;\r\n      margin: 34px 0 10px;\r\n    }\r\n\r\n    .lypoe41-figure-frame {\r\n      overflow: hidden;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 16px;\r\n      background: #ffffff;\r\n      box-shadow: var(--ly-shadow);\r\n    }\r\n\r\n    .lypoe41-figure img {\r\n      width: 100%;\r\n      height: auto;\r\n      margin: 0;\r\n      object-fit: contain;\r\n    }\r\n\r\n    .lypoe41-figure figcaption {\r\n      margin-top: 12px;\r\n      padding: 0 4px;\r\n      color: var(--ly-muted);\r\n      font-size: 14px;\r\n      line-height: 1.6;\r\n      text-align: center;\r\n    }\r\n\r\n    .lypoe41-toc {\r\n      margin: 0 0 34px;\r\n      padding: 24px 28px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 14px;\r\n      background: var(--ly-light);\r\n    }\r\n\r\n    .lypoe41-toc-title {\r\n      margin-bottom: 14px;\r\n      color: #17293a;\r\n      font-size: 16px;\r\n      font-weight: 800;\r\n    }\r\n\r\n    .lypoe41-toc-list {\r\n      display: grid;\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      gap: 8px 26px;\r\n      margin: 0;\r\n      padding: 0;\r\n      list-style: none;\r\n    }\r\n\r\n    .lypoe41-toc-list li {\r\n      margin: 0;\r\n    }\r\n\r\n    .lypoe41-toc-list a {\r\n      display: block;\r\n      padding: 5px 0;\r\n      color: #29465f;\r\n      font-size: 15px;\r\n      font-weight: 700;\r\n      text-decoration: none;\r\n    }\r\n\r\n    .lypoe41-toc-list a:hover {\r\n      color: var(--ly-blue);\r\n      text-decoration: underline;\r\n    }\r\n\r\n    .lypoe41-two-col {\r\n      display: grid;\r\n      grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);\r\n      gap: 36px;\r\n      align-items: start;\r\n    }\r\n\r\n    .lypoe41-card-grid {\r\n      display: grid;\r\n      grid-template-columns: repeat(3, minmax(0, 1fr));\r\n      gap: 18px;\r\n      margin-top: 26px;\r\n    }\r\n\r\n    .lypoe41-card {\r\n      height: 100%;\r\n      padding: 23px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 14px;\r\n      background: #ffffff;\r\n      box-shadow: 0 8px 22px rgba(30, 55, 80, 0.05);\r\n    }\r\n\r\n    .lypoe41-card-num {\r\n      display: inline-grid;\r\n      place-items: center;\r\n      width: 36px;\r\n      height: 36px;\r\n      margin-bottom: 15px;\r\n      border-radius: 50%;\r\n      background: var(--ly-blue-soft);\r\n      color: var(--ly-blue);\r\n      font-size: 15px;\r\n      font-weight: 800;\r\n    }\r\n\r\n    .lypoe41-card p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n\r\n    .lypoe41-risk-list {\r\n      display: grid;\r\n      gap: 11px;\r\n      margin-top: 22px;\r\n    }\r\n\r\n    .lypoe41-risk {\r\n      position: relative;\r\n      padding: 15px 16px 15px 46px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 10px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-risk::before {\r\n      content: \"!\";\r\n      position: absolute;\r\n      top: 15px;\r\n      left: 15px;\r\n      display: grid;\r\n      place-items: center;\r\n      width: 22px;\r\n      height: 22px;\r\n      border-radius: 50%;\r\n      background: var(--ly-orange-soft);\r\n      color: var(--ly-orange);\r\n      font-size: 13px;\r\n      font-weight: 900;\r\n    }\r\n\r\n    .lypoe41-risk strong {\r\n      display: block;\r\n      margin-bottom: 2px;\r\n    }\r\n\r\n    .lypoe41-callout {\r\n      padding: 24px;\r\n      border: 1px solid #c3d9eb;\r\n      border-radius: 14px;\r\n      background: var(--ly-blue-soft);\r\n    }\r\n\r\n    .lypoe41-callout.warning {\r\n      border-color: #efcfad;\r\n      background: var(--ly-orange-soft);\r\n    }\r\n\r\n    .lypoe41-callout.success {\r\n      border-color: #bcdccb;\r\n      background: var(--ly-green-soft);\r\n    }\r\n\r\n    .lypoe41-callout.danger {\r\n      border-color: #e9c4c4;\r\n      background: var(--ly-red-soft);\r\n    }\r\n\r\n    .lypoe41-callout p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n\r\n    .lypoe41-table-wrap {\r\n      width: 100%;\r\n      margin: 26px 0;\r\n      overflow-x: auto;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 14px;\r\n      background: #ffffff;\r\n      -webkit-overflow-scrolling: touch;\r\n    }\r\n\r\n    .lypoe41-table {\r\n      width: 100%;\r\n      min-width: 780px;\r\n      border-collapse: collapse;\r\n    }\r\n\r\n    .lypoe41-table th,\r\n    .lypoe41-table td {\r\n      padding: 16px 17px;\r\n      border-right: 1px solid var(--ly-line);\r\n      border-bottom: 1px solid var(--ly-line);\r\n      text-align: left;\r\n      vertical-align: top;\r\n    }\r\n\r\n    .lypoe41-table th:last-child,\r\n    .lypoe41-table td:last-child {\r\n      border-right: 0;\r\n    }\r\n\r\n    .lypoe41-table tr:last-child td {\r\n      border-bottom: 0;\r\n    }\r\n\r\n    .lypoe41-table th {\r\n      background: #edf3f8;\r\n      color: #18334b;\r\n      font-size: 14px;\r\n      line-height: 1.4;\r\n    }\r\n\r\n    .lypoe41-table td {\r\n      color: #344658;\r\n      font-size: 15px;\r\n      line-height: 1.55;\r\n    }\r\n\r\n    .lypoe41-table tbody tr:nth-child(even) {\r\n      background: #fafcfd;\r\n    }\r\n\r\n    .lypoe41-badge {\r\n      display: inline-block;\r\n      margin-bottom: 5px;\r\n      padding: 4px 9px;\r\n      border-radius: 999px;\r\n      background: var(--ly-blue-soft);\r\n      color: var(--ly-blue);\r\n      font-size: 12px;\r\n      font-weight: 800;\r\n      white-space: nowrap;\r\n    }\r\n\r\n    .lypoe41-badge.high {\r\n      background: var(--ly-orange-soft);\r\n      color: var(--ly-orange);\r\n    }\r\n\r\n    .lypoe41-badge.ok {\r\n      background: var(--ly-green-soft);\r\n      color: var(--ly-green);\r\n    }\r\n\r\n    .lypoe41-decision {\r\n      display: grid;\r\n      gap: 14px;\r\n      margin-top: 26px;\r\n    }\r\n\r\n    .lypoe41-decision-row {\r\n      display: grid;\r\n      grid-template-columns: 42px minmax(0, 1fr) minmax(260px, 0.7fr);\r\n      gap: 16px;\r\n      align-items: center;\r\n      padding: 19px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 13px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-decision-num {\r\n      display: grid;\r\n      place-items: center;\r\n      width: 42px;\r\n      height: 42px;\r\n      border-radius: 10px;\r\n      background: var(--ly-blue);\r\n      color: #ffffff;\r\n      font-weight: 900;\r\n    }\r\n\r\n    .lypoe41-decision-result {\r\n      padding: 11px 13px;\r\n      border-radius: 9px;\r\n      background: var(--ly-blue-soft);\r\n      color: #174d7c;\r\n      font-size: 14px;\r\n      font-weight: 800;\r\n    }\r\n\r\n    .lypoe41-check-grid {\r\n      display: grid;\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      gap: 14px;\r\n      margin-top: 24px;\r\n    }\r\n\r\n    .lypoe41-check {\r\n      position: relative;\r\n      padding: 17px 17px 17px 48px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 11px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-check::before {\r\n      content: \"\u2713\";\r\n      position: absolute;\r\n      top: 16px;\r\n      left: 16px;\r\n      display: grid;\r\n      place-items: center;\r\n      width: 23px;\r\n      height: 23px;\r\n      border-radius: 50%;\r\n      background: var(--ly-green-soft);\r\n      color: var(--ly-green);\r\n      font-size: 14px;\r\n      font-weight: 900;\r\n    }\r\n\r\n    .lypoe41-check strong {\r\n      display: block;\r\n      margin-bottom: 3px;\r\n      font-size: 15px;\r\n    }\r\n\r\n    .lypoe41-check span {\r\n      color: var(--ly-muted);\r\n      font-size: 14px;\r\n      line-height: 1.5;\r\n    }\r\n\r\n    .lypoe41-proof-grid {\r\n      display: grid;\r\n      grid-template-columns: repeat(3, minmax(0, 1fr));\r\n      gap: 16px;\r\n      margin-top: 26px;\r\n    }\r\n\r\n    .lypoe41-proof {\r\n      padding: 21px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 13px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-proof-label {\r\n      display: inline-block;\r\n      margin-bottom: 10px;\r\n      padding: 4px 9px;\r\n      border-radius: 999px;\r\n      background: var(--ly-blue-soft);\r\n      color: var(--ly-blue);\r\n      font-size: 11px;\r\n      font-weight: 800;\r\n      letter-spacing: 0.05em;\r\n      text-transform: uppercase;\r\n    }\r\n\r\n    .lypoe41-proof h3 {\r\n      margin-bottom: 8px;\r\n      font-size: 19px;\r\n    }\r\n\r\n    .lypoe41-proof p {\r\n      margin: 0;\r\n      color: var(--ly-muted);\r\n      font-size: 14px;\r\n      line-height: 1.55;\r\n    }\r\n\r\n    .lypoe41-spec-list {\r\n      counter-reset: specs;\r\n      display: grid;\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      gap: 15px;\r\n      margin-top: 26px;\r\n    }\r\n\r\n    .lypoe41-spec {\r\n      counter-increment: specs;\r\n      position: relative;\r\n      min-height: 112px;\r\n      padding: 19px 18px 18px 58px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 12px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-spec::before {\r\n      content: counter(specs);\r\n      position: absolute;\r\n      top: 18px;\r\n      left: 17px;\r\n      display: grid;\r\n      place-items: center;\r\n      width: 28px;\r\n      height: 28px;\r\n      border-radius: 8px;\r\n      background: var(--ly-blue);\r\n      color: #ffffff;\r\n      font-size: 13px;\r\n      font-weight: 900;\r\n    }\r\n\r\n    .lypoe41-spec strong {\r\n      display: block;\r\n      margin-bottom: 5px;\r\n      font-size: 15px;\r\n    }\r\n\r\n    .lypoe41-spec p {\r\n      margin: 0;\r\n      color: var(--ly-muted);\r\n      font-size: 14px;\r\n      line-height: 1.5;\r\n    }\r\n\r\n    .lypoe41-mistakes {\r\n      display: grid;\r\n      grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      gap: 16px;\r\n      margin-top: 26px;\r\n    }\r\n\r\n    .lypoe41-mistake {\r\n      padding: 20px;\r\n      border: 1px solid #ebcccc;\r\n      border-radius: 12px;\r\n      background: #fffafa;\r\n    }\r\n\r\n    .lypoe41-mistake-title {\r\n      display: flex;\r\n      align-items: flex-start;\r\n      gap: 10px;\r\n      margin-bottom: 7px;\r\n      color: var(--ly-red);\r\n      font-size: 16px;\r\n      font-weight: 800;\r\n    }\r\n\r\n    .lypoe41-mistake-title::before {\r\n      content: \"\u00d7\";\r\n      flex: 0 0 24px;\r\n      display: grid;\r\n      place-items: center;\r\n      width: 24px;\r\n      height: 24px;\r\n      border-radius: 50%;\r\n      background: var(--ly-red-soft);\r\n      color: var(--ly-red);\r\n      font-weight: 900;\r\n    }\r\n\r\n    .lypoe41-mistake p {\r\n      margin: 0;\r\n      color: var(--ly-muted);\r\n      font-size: 14px;\r\n    }\r\n\r\n    .lypoe41-rfq {\r\n      padding: 34px;\r\n      border-radius: 18px;\r\n      background: var(--ly-navy);\r\n      color: #ffffff;\r\n      box-shadow: var(--ly-shadow);\r\n    }\r\n\r\n    .lypoe41-rfq h2,\r\n    .lypoe41-rfq h3,\r\n    .lypoe41-rfq strong {\r\n      color: #ffffff;\r\n    }\r\n\r\n    .lypoe41-rfq p {\r\n      color: #dce8f2;\r\n    }\r\n\r\n    .lypoe41-rfq-grid {\r\n      display: grid;\r\n      grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);\r\n      gap: 34px;\r\n      align-items: start;\r\n    }\r\n\r\n    .lypoe41-copy-box {\r\n      padding: 22px;\r\n      border: 1px solid rgba(255, 255, 255, 0.18);\r\n      border-radius: 12px;\r\n      background: rgba(255, 255, 255, 0.07);\r\n      color: #edf5fb;\r\n      font-family: Consolas, Monaco, monospace;\r\n      font-size: 14px;\r\n      line-height: 1.65;\r\n      white-space: normal;\r\n    }\r\n\r\n    .lypoe41-faq {\r\n      display: grid;\r\n      gap: 12px;\r\n      margin-top: 25px;\r\n    }\r\n\r\n    .lypoe41-faq details {\r\n      overflow: hidden;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 12px;\r\n      background: #ffffff;\r\n    }\r\n\r\n    .lypoe41-faq summary {\r\n      position: relative;\r\n      padding: 19px 52px 19px 20px;\r\n      color: #18334b;\r\n      font-weight: 800;\r\n      cursor: pointer;\r\n      list-style: none;\r\n    }\r\n\r\n    .lypoe41-faq summary::-webkit-details-marker {\r\n      display: none;\r\n    }\r\n\r\n    .lypoe41-faq summary::after {\r\n      content: \"+\";\r\n      position: absolute;\r\n      top: 50%;\r\n      right: 19px;\r\n      width: 25px;\r\n      height: 25px;\r\n      border-radius: 50%;\r\n      background: var(--ly-blue-soft);\r\n      color: var(--ly-blue);\r\n      text-align: center;\r\n      line-height: 25px;\r\n      transform: translateY(-50%);\r\n    }\r\n\r\n    .lypoe41-faq details[open] summary::after {\r\n      content: \"\u2212\";\r\n    }\r\n\r\n    .lypoe41-faq-answer {\r\n      padding: 0 20px 19px;\r\n      color: var(--ly-muted);\r\n    }\r\n\r\n    .lypoe41-faq-answer p:last-child {\r\n      margin-bottom: 0;\r\n    }\r\n\r\n    .lypoe41-reference-list {\r\n      padding-left: 22px;\r\n      color: var(--ly-muted);\r\n      font-size: 14px;\r\n    }\r\n\r\n    .lypoe41-reference-list li {\r\n      margin-bottom: 11px;\r\n    }\r\n\r\n    .lypoe41-reference-list a {\r\n      overflow-wrap: anywhere;\r\n    }\r\n\r\n    .lypoe41-related-grid {\r\n      display: grid;\r\n      grid-template-columns: repeat(4, minmax(0, 1fr));\r\n      gap: 15px;\r\n      margin-top: 25px;\r\n    }\r\n\r\n    .lypoe41-related-card {\r\n      display: block;\r\n      height: 100%;\r\n      padding: 20px;\r\n      border: 1px solid var(--ly-line);\r\n      border-radius: 12px;\r\n      background: #ffffff;\r\n      color: inherit !important;\r\n      text-decoration: none !important;\r\n      transition:\r\n        transform 0.2s ease,\r\n        border-color 0.2s ease,\r\n        box-shadow 0.2s ease;\r\n    }\r\n\r\n    .lypoe41-related-card:hover {\r\n      transform: translateY(-3px);\r\n      border-color: #a9c8e2;\r\n      box-shadow: 0 10px 24px rgba(20, 55, 85, 0.08);\r\n    }\r\n\r\n    .lypoe41-related-card span {\r\n      display: block;\r\n      margin-bottom: 8px;\r\n      color: var(--ly-blue);\r\n      font-size: 12px;\r\n      font-weight: 800;\r\n      letter-spacing: 0.05em;\r\n      text-transform: uppercase;\r\n    }\r\n\r\n    .lypoe41-related-card strong {\r\n      display: block;\r\n      margin-bottom: 7px;\r\n      font-size: 16px;\r\n      line-height: 1.4;\r\n    }\r\n\r\n    .lypoe41-related-card p {\r\n      margin: 0;\r\n      color: var(--ly-muted);\r\n      font-size: 13px;\r\n      line-height: 1.55;\r\n    }\r\n\r\n    .lypoe41-cta {\r\n      margin: 54px 0 22px;\r\n      padding: 38px;\r\n      border-radius: 18px;\r\n      background: linear-gradient(\r\n        135deg,\r\n        var(--ly-blue) 0%,\r\n        var(--ly-blue-dark) 100%\r\n      );\r\n      color: #ffffff;\r\n      text-align: center;\r\n      box-shadow: 0 18px 42px rgba(0, 72, 152, 0.22);\r\n    }\r\n\r\n    .lypoe41-cta h2 {\r\n      margin-bottom: 12px;\r\n      color: #ffffff;\r\n    }\r\n\r\n    .lypoe41-cta p {\r\n      max-width: 780px;\r\n      margin: 0 auto 22px;\r\n      color: #e6f0f8;\r\n    }\r\n\r\n    .lypoe41-btn-row {\r\n      display: flex;\r\n      flex-wrap: wrap;\r\n      justify-content: center;\r\n      gap: 12px;\r\n    }\r\n\r\n    .lypoe41-btn {\r\n      display: inline-flex;\r\n      align-items: center;\r\n      justify-content: center;\r\n      min-height: 48px;\r\n      padding: 12px 23px;\r\n      border: 2px solid transparent;\r\n      border-radius: 8px;\r\n      font-size: 15px;\r\n      font-weight: 800;\r\n      line-height: 1.25;\r\n      text-decoration: none !important;\r\n      cursor: pointer;\r\n      transition:\r\n        transform 0.2s ease,\r\n        background 0.2s ease;\r\n    }\r\n\r\n    .lypoe41-btn:hover {\r\n      transform: translateY(-2px);\r\n    }\r\n\r\n    .lypoe41-btn-primary {\r\n      background: #ffffff;\r\n      color: var(--ly-blue) !important;\r\n    }\r\n\r\n    .lypoe41-btn-secondary {\r\n      border-color: rgba(255, 255, 255, 0.55);\r\n      background: transparent;\r\n      color: #ffffff !important;\r\n    }\r\n\r\n    .lypoe41-source-note {\r\n      margin-top: 18px;\r\n      color: #71808e;\r\n      font-size: 13px;\r\n      line-height: 1.6;\r\n    }\r\n\r\n    @media (max-width: 1440px) {\r\n      .lypoe41-shell {\r\n        width: min(1160px, calc(100% - 48px));\r\n      }\r\n\r\n      .lypoe41-related-grid {\r\n        gap: 14px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 1366px) {\r\n      .lypoe41-shell {\r\n        width: min(1120px, calc(100% - 44px));\r\n      }\r\n\r\n      .lypoe41-section {\r\n        padding: 66px 0;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 1280px) {\r\n      .lypoe41-shell {\r\n        width: min(1080px, calc(100% - 40px));\r\n      }\r\n\r\n      .lypoe41 h2 {\r\n        font-size: 32px;\r\n      }\r\n\r\n      .lypoe41-card {\r\n        padding: 21px;\r\n      }\r\n\r\n      .lypoe41-related-grid {\r\n        grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      }\r\n    }\r\n\r\n    @media (max-width: 1024px) {\r\n      .lypoe41-shell {\r\n        width: calc(100% - 40px);\r\n      }\r\n\r\n      .lypoe41-two-col,\r\n      .lypoe41-rfq-grid {\r\n        grid-template-columns: 1fr;\r\n      }\r\n\r\n      .lypoe41-card-grid,\r\n      .lypoe41-proof-grid {\r\n        grid-template-columns: repeat(2, minmax(0, 1fr));\r\n      }\r\n    }\r\n\r\n    @media (max-width: 912px) {\r\n      .lypoe41 {\r\n        font-size: 16.5px;\r\n      }\r\n\r\n      .lypoe41-answer-grid {\r\n        grid-template-columns: 1fr;\r\n      }\r\n\r\n      .lypoe41-decision-row {\r\n        grid-template-columns: 42px minmax(0, 1fr);\r\n      }\r\n\r\n      .lypoe41-decision-result {\r\n        grid-column: 2;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 820px) {\r\n      .lypoe41-section {\r\n        padding: 58px 0;\r\n      }\r\n\r\n      .lypoe41 h2 {\r\n        font-size: 30px;\r\n      }\r\n\r\n      .lypoe41-lead {\r\n        font-size: 19px;\r\n      }\r\n\r\n      .lypoe41-toc-list,\r\n      .lypoe41-check-grid,\r\n      .lypoe41-spec-list,\r\n      .lypoe41-mistakes {\r\n        grid-template-columns: 1fr;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 768px) {\r\n      .lypoe41-shell {\r\n        width: calc(100% - 32px);\r\n      }\r\n\r\n      .lypoe41-card-grid,\r\n      .lypoe41-proof-grid,\r\n      .lypoe41-related-grid {\r\n        grid-template-columns: 1fr;\r\n      }\r\n\r\n      .lypoe41-answer,\r\n      .lypoe41-rfq,\r\n      .lypoe41-cta {\r\n        padding: 26px;\r\n      }\r\n\r\n      .lypoe41-figure-frame {\r\n        border-radius: 13px;\r\n      }\r\n\r\n      .lypoe41-table th,\r\n      .lypoe41-table td {\r\n        padding: 14px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 600px) {\r\n      .lypoe41 {\r\n        font-size: 16px;\r\n      }\r\n\r\n      .lypoe41-shell {\r\n        width: calc(100% - 28px);\r\n      }\r\n\r\n      .lypoe41-section {\r\n        padding: 50px 0;\r\n      }\r\n\r\n      .lypoe41 h2 {\r\n        font-size: 28px;\r\n      }\r\n\r\n      .lypoe41 h3 {\r\n        font-size: 22px;\r\n      }\r\n\r\n      .lypoe41-answer,\r\n      .lypoe41-rfq,\r\n      .lypoe41-cta {\r\n        padding: 22px;\r\n        border-radius: 14px;\r\n      }\r\n\r\n      .lypoe41-figure {\r\n        margin-top: 26px;\r\n      }\r\n\r\n      .lypoe41-figure figcaption {\r\n        font-size: 13px;\r\n      }\r\n\r\n      .lypoe41-meta-strip {\r\n        gap: 8px;\r\n      }\r\n\r\n      .lypoe41-meta-item {\r\n        width: 100%;\r\n        border-radius: 8px;\r\n      }\r\n\r\n      .lypoe41-decision-row {\r\n        grid-template-columns: 36px minmax(0, 1fr);\r\n        padding: 16px;\r\n      }\r\n\r\n      .lypoe41-decision-num {\r\n        width: 36px;\r\n        height: 36px;\r\n      }\r\n\r\n      .lypoe41-btn-row {\r\n        flex-direction: column;\r\n      }\r\n\r\n      .lypoe41-btn {\r\n        width: 100%;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 540px) {\r\n      .lypoe41-lead {\r\n        font-size: 18px;\r\n      }\r\n\r\n      .lypoe41-toc {\r\n        padding: 20px;\r\n      }\r\n\r\n      .lypoe41-rfq {\r\n        padding: 21px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 480px) {\r\n      .lypoe41-shell {\r\n        width: calc(100% - 24px);\r\n      }\r\n\r\n      .lypoe41 h2 {\r\n        font-size: 26px;\r\n      }\r\n\r\n      .lypoe41 h3 {\r\n        font-size: 21px;\r\n      }\r\n\r\n      .lypoe41-answer {\r\n        border-left-width: 5px;\r\n      }\r\n\r\n      .lypoe41-table {\r\n        min-width: 720px;\r\n      }\r\n\r\n      .lypoe41-faq summary {\r\n        padding: 17px 47px 17px 17px;\r\n      }\r\n\r\n      .lypoe41-faq-answer {\r\n        padding: 0 17px 17px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 430px) {\r\n      .lypoe41-section {\r\n        padding: 46px 0;\r\n      }\r\n\r\n      .lypoe41-answer,\r\n      .lypoe41-rfq,\r\n      .lypoe41-cta {\r\n        padding: 19px;\r\n      }\r\n\r\n      .lypoe41-card,\r\n      .lypoe41-callout,\r\n      .lypoe41-proof {\r\n        padding: 19px;\r\n      }\r\n\r\n      .lypoe41-spec {\r\n        padding-right: 15px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 414px) {\r\n      .lypoe41 h2 {\r\n        font-size: 25px;\r\n      }\r\n\r\n      .lypoe41-answer-item,\r\n      .lypoe41-check,\r\n      .lypoe41-mistake {\r\n        padding-right: 15px;\r\n      }\r\n\r\n      .lypoe41-copy-box {\r\n        padding: 17px;\r\n        font-size: 13px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 390px) {\r\n      .lypoe41-shell {\r\n        width: calc(100% - 22px);\r\n      }\r\n\r\n      .lypoe41-eyebrow {\r\n        font-size: 12px;\r\n      }\r\n\r\n      .lypoe41-lead {\r\n        font-size: 17px;\r\n      }\r\n\r\n      .lypoe41-decision-row {\r\n        gap: 12px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 375px) {\r\n      .lypoe41 h2 {\r\n        font-size: 24px;\r\n      }\r\n\r\n      .lypoe41 h3 {\r\n        font-size: 20px;\r\n      }\r\n\r\n      .lypoe41-card,\r\n      .lypoe41-callout,\r\n      .lypoe41-answer,\r\n      .lypoe41-rfq,\r\n      .lypoe41-cta,\r\n      .lypoe41-proof {\r\n        border-radius: 12px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 360px) {\r\n      .lypoe41 {\r\n        font-size: 15.5px;\r\n      }\r\n\r\n      .lypoe41-shell {\r\n        width: calc(100% - 20px);\r\n      }\r\n\r\n      .lypoe41-btn {\r\n        padding-right: 16px;\r\n        padding-left: 16px;\r\n      }\r\n\r\n      .lypoe41-answer-label {\r\n        font-size: 11px;\r\n      }\r\n    }\r\n\r\n    @media (max-width: 320px) {\r\n      .lypoe41-shell {\r\n        width: calc(100% - 16px);\r\n      }\r\n\r\n      .lypoe41 h2 {\r\n        font-size: 22px;\r\n      }\r\n\r\n      .lypoe41 h3 {\r\n        font-size: 19px;\r\n      }\r\n\r\n      .lypoe41-answer,\r\n      .lypoe41-rfq,\r\n      .lypoe41-cta,\r\n      .lypoe41-card,\r\n      .lypoe41-callout,\r\n      .lypoe41-proof {\r\n        padding: 16px;\r\n      }\r\n\r\n      .lypoe41-decision-row {\r\n        grid-template-columns: 32px minmax(0, 1fr);\r\n        padding: 14px;\r\n      }\r\n\r\n      .lypoe41-decision-num {\r\n        width: 32px;\r\n        height: 32px;\r\n      }\r\n    }\r\n  <\/style>\r\n\r\n  <div class=\"lypoe41-shell\">\r\n\r\n    <div class=\"lypoe41-intro\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Engineering Selection Guide\r\n      <\/div>\r\n\r\n      <p class=\"lypoe41-lead\">\r\n        A PoE surge protector is not selected by the RJ45 connector alone.\r\n        For an outdoor CCTV or network project, the protector must match the\r\n        installation position, Ethernet data rate, PoE type, powered pairs,\r\n        operating voltage, grounding method and environmental enclosure.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-meta-strip\">\r\n        <span class=\"lypoe41-meta-item\">\r\n          Application: PoE CCTV and outdoor Ethernet\r\n        <\/span>\r\n\r\n        <span class=\"lypoe41-meta-item\">\r\n          Audience: Integrators, contractors and OEM buyers\r\n        <\/span>\r\n\r\n        <span class=\"lypoe41-meta-item\">\r\n          Technical review: LEEYEE Technical Team\r\n        <\/span>\r\n\r\n        <span class=\"lypoe41-meta-item\">\r\n          Last updated: July 2026\r\n        <\/span>\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-answer\">\r\n\r\n        <span class=\"lypoe41-answer-label\">\r\n          Quick Answer\r\n        <\/span>\r\n\r\n        <p>\r\n          Outdoor PoE cameras normally require surge protection when the\r\n          Ethernet cable leaves a building, runs along a roof, connects to a\r\n          pole, crosses an exposed area or links equipment with different\r\n          grounding conditions.\r\n        <\/p>\r\n\r\n        <p>\r\n          For a short camera cable mounted on the outside wall of the same\r\n          building, protection at the building entry or network-equipment side\r\n          may be sufficient after a site risk assessment. For a remote pole,\r\n          rooftop camera, parking-lot camera or long outdoor run, a common\r\n          engineering arrangement is to install one PoE SPD near the field\r\n          device and another near the building entry, PoE switch or injector.\r\n        <\/p>\r\n\r\n        <div class=\"lypoe41-answer-grid\">\r\n\r\n          <div class=\"lypoe41-answer-item\">\r\n            <span>Camera side<\/span>\r\n            <p>\r\n              Limits surge energy before it reaches the outdoor camera,\r\n              wireless access point or other field device.\r\n            <\/p>\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-answer-item\">\r\n            <span>Switch side<\/span>\r\n            <p>\r\n              Helps protect the PoE switch, injector, NVR and the wider indoor\r\n              network.\r\n            <\/p>\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-answer-item\">\r\n            <span>Both ends<\/span>\r\n            <p>\r\n              Commonly considered for long, exposed or remote outdoor copper\r\n              links where both connected devices require protection.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <figure class=\"lypoe41-figure\">\r\n        <div class=\"lypoe41-figure-frame\">\r\n          <img loading=\"lazy\"\r\n            src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/poe-cctv-dual-end-surge-protection-architecture.webp\"\r\n            alt=\"Dual-end PoE surge protection architecture for an outdoor CCTV camera and network switch\"\r\n            width=\"1600\"\r\n            height=\"900\"\r\n            loading=\"lazy\"\r\n            decoding=\"async\"\r\n          >\r\n        <\/div>\r\n\r\n        <figcaption>\r\n          Typical dual-end protection architecture for a remote outdoor PoE\r\n          camera, with one SPD near the field device and another at the\r\n          building entry or network-equipment side.\r\n        <\/figcaption>\r\n      <\/figure>\r\n\r\n    <\/div>\r\n\r\n    <nav class=\"lypoe41-toc\" aria-label=\"Page contents\">\r\n\r\n      <div class=\"lypoe41-toc-title\">\r\n        On this page\r\n      <\/div>\r\n\r\n      <ul class=\"lypoe41-toc-list\">\r\n        <li>\r\n          <a href=\"#poe-need\">\r\n            Does a PoE camera need an SPD?\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-location\">\r\n            Where should the SPD be installed?\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-both-ends\">\r\n            Camera side, switch side or both?\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-compatibility\">\r\n            RJ45 and PoE compatibility\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-pairs\">\r\n            Mode A, Mode B and four-pair PoE\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-passive\">\r\n            Standard PoE vs passive PoE\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-standards\">\r\n            PoE standards and power\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-grounding\">\r\n            Grounding and shielding\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-outdoor\">\r\n            Outdoor enclosure requirements\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-model-proof\">\r\n            Model-specific evidence\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-buying\">\r\n            Procurement checklist\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-commissioning\">\r\n            Installation checks\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          <a href=\"#poe-faq\">\r\n            Frequently asked questions\r\n          <\/a>\r\n        <\/li>\r\n      <\/ul>\r\n\r\n    <\/nav>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-need\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Risk Assessment\r\n      <\/div>\r\n\r\n      <div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#does-every-poe-camera-need-a-surge-protector\" >Does Every PoE Camera Need a Surge Protector?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#where-should-a-poe-surge-protector-be-installed\" >Where Should a PoE Surge Protector Be Installed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#camera-side-switch-side-or-both-ends\" >Camera Side, Switch Side or Both Ends?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#does-every-rj45-surge-protector-support-poe\" >Does Every RJ45 Surge Protector Support PoE?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#does-the-poe-spd-support-alternative-a-alternative-b-and-four-pair-poe\" >Does the PoE SPD Support Alternative A, Alternative B and Four-Pair PoE?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#standard-ieee-poe-is-not-the-same-as-passive-poe\" >Standard IEEE PoE Is Not the Same as Passive PoE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#poe-standards-buyers-should-confirm\" >PoE Standards Buyers Should Confirm<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#does-a-poe-surge-protector-need-grounding\" >Does a PoE Surge Protector Need Grounding?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#can-an-indoor-rj45-spd-be-installed-beside-an-outdoor-camera\" >Can an Indoor RJ45 SPD Be Installed Beside an Outdoor Camera?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#what-evidence-should-be-checked-for-the-exact-poe-spd-model\" >What Evidence Should Be Checked for the Exact PoE SPD Model?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#poe-surge-protector-procurement-checklist\" >PoE Surge Protector Procurement Checklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#what-should-be-checked-after-installation\" >What Should Be Checked After Installation?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#common-poe-surge-protection-mistakes\" >Common PoE Surge Protection Mistakes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#information-to-send-before-requesting-a-quote\" >Information to Send Before Requesting a Quote<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#poe-surge-protector-frequently-asked-questions\" >PoE Surge Protector Frequently Asked Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#sources-and-further-reading\" >Sources and Further Reading<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#continue-the-technical-review\" >Continue the Technical Review<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/#need-a-poe-spd-confirmed-for-your-cctv-project\" >Need a PoE SPD Confirmed for Your CCTV Project?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"does-every-poe-camera-need-a-surge-protector\"><\/span>\r\n        Does Every PoE Camera Need a Surge Protector?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <div class=\"lypoe41-two-col\">\r\n\r\n        <div>\r\n          <p>\r\n            No. A PoE SPD should be selected according to the cable route,\r\n            exposure level, grounding arrangement, value of the protected\r\n            equipment and acceptable downtime.\r\n          <\/p>\r\n\r\n          <p>\r\n            A short indoor cable between equipment in the same protected room\r\n            does not have the same exposure as a long copper cable running from\r\n            a control building to a camera on a steel pole.\r\n          <\/p>\r\n\r\n          <p>\r\n            The risk increases when a conductive Ethernet cable extends\r\n            outside the building or connects equipment installed at different\r\n            physical locations.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <aside class=\"lypoe41-callout warning\">\r\n          <h3>\r\n            Do not assess only direct lightning risk\r\n          <\/h3>\r\n\r\n          <p>\r\n            A camera does not need to be directly struck for damage to occur.\r\n            Nearby lightning, switching events, induced voltage, earth\r\n            potential differences and surges entering through connected power\r\n            or communication lines can also affect sensitive ports.\r\n          <\/p>\r\n        <\/aside>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-risk-list\">\r\n\r\n        <div class=\"lypoe41-risk\">\r\n          <strong>Outdoor pole or mast<\/strong>\r\n          Long exposed cables and metal structures increase the importance of\r\n          coordinated protection and bonding.\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-risk\">\r\n          <strong>Rooftop or building-edge camera<\/strong>\r\n          The cable may run close to lightning protection conductors, metal\r\n          structures, HVAC equipment or exposed roof areas.\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-risk\">\r\n          <strong>Parking area and perimeter surveillance<\/strong>\r\n          Cameras are often far from the network room and connected by long\r\n          buried or overhead copper cables.\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-risk\">\r\n          <strong>Cable entering from outdoors<\/strong>\r\n          The building entry point is a critical boundary where surge energy\r\n          should be controlled before reaching indoor network equipment.\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-risk\">\r\n          <strong>Separate structures<\/strong>\r\n          Copper links between buildings require careful consideration of\r\n          bonding, grounding and the potential difference between earthing\r\n          systems.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-location\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Protection Position\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"where-should-a-poe-surge-protector-be-installed\"><\/span>\r\n        Where Should a PoE Surge Protector Be Installed?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        Install the protector as close as practical to the equipment or\r\n        protection boundary it is intended to protect. Keep the cable section\r\n        between the SPD and the protected port short.\r\n      <\/p>\r\n\r\n      <p>\r\n        Do not route the protected cable directly beside the exposed incoming\r\n        cable for a long distance. Physical separation helps reduce surge\r\n        energy from coupling back into the protected side.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-card-grid\">\r\n\r\n        <div class=\"lypoe41-card\">\r\n          <div class=\"lypoe41-card-num\">1<\/div>\r\n\r\n          <h3>\r\n            Near the camera\r\n          <\/h3>\r\n\r\n          <p>\r\n            Protects the field device from surge energy entering through the\r\n            outdoor Ethernet cable. The protected connection from the SPD to\r\n            the camera should be kept short.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-card\">\r\n          <div class=\"lypoe41-card-num\">2<\/div>\r\n\r\n          <h3>\r\n            At the building entry\r\n          <\/h3>\r\n\r\n          <p>\r\n            Controls surge energy before the outdoor copper cable continues\r\n            into an indoor network room, cabinet or other protected zone.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-card\">\r\n          <div class=\"lypoe41-card-num\">3<\/div>\r\n\r\n          <h3>\r\n            Before the switch or injector\r\n          <\/h3>\r\n\r\n          <p>\r\n            Protects the PoE switch, injector, NVR and connected network\r\n            infrastructure when the entry point and equipment position are\r\n            close together.\r\n          <\/p>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-callout\" style=\"margin-top:24px;\">\r\n\r\n        <h3>\r\n          Protect the boundary, not only the connector\r\n        <\/h3>\r\n\r\n        <p>\r\n          The correct position is determined by where the exposed cable enters\r\n          a protected zone and which device must be protected. An SPD hanging\r\n          beside a switch without the specified bonding path is not a complete\r\n          protection design.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-both-ends\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Placement Decision\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"camera-side-switch-side-or-both-ends\"><\/span>\r\n        Camera Side, Switch Side or Both Ends?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        \u201cAlways use two\u201d and \u201cone SPD is enough\u201d are both oversimplified\r\n        answers. Use the exposure, cable route and protection boundaries to\r\n        make the decision.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-table-wrap\">\r\n\r\n        <table class=\"lypoe41-table\">\r\n\r\n          <thead>\r\n            <tr>\r\n              <th>Project condition<\/th>\r\n              <th>Typical protection approach<\/th>\r\n              <th>Important engineering checks<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n\r\n          <tbody>\r\n\r\n            <tr>\r\n              <td>\r\n                Short indoor cable in one protected room\r\n              <\/td>\r\n\r\n              <td>\r\n                <span class=\"lypoe41-badge\">\r\n                  Risk assessment\r\n                <\/span>\r\n                <br>\r\n                A dedicated PoE SPD may not always be necessary.\r\n              <\/td>\r\n\r\n              <td>\r\n                Check incoming power protection, equipment value and local\r\n                requirements.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Camera mounted on the exterior wall of the same building\r\n              <\/td>\r\n\r\n              <td>\r\n                <span class=\"lypoe41-badge\">\r\n                  Entry-side review\r\n                <\/span>\r\n                <br>\r\n                Consider protection where the cable enters the building or\r\n                near the protected network equipment.\r\n              <\/td>\r\n\r\n              <td>\r\n                Cable exposure, fa\u00e7ade lightning protection, cable length and\r\n                camera bonding.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Camera on a remote pole or parking-lot mast\r\n              <\/td>\r\n\r\n              <td>\r\n                <span class=\"lypoe41-badge high\">\r\n                  Dual-end commonly used\r\n                <\/span>\r\n                <br>\r\n                One near the camera and one at the building entry or switch\r\n                side.\r\n              <\/td>\r\n\r\n              <td>\r\n                Pole bonding, outdoor enclosure, cable route, grounding path\r\n                and separation from power cables.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Long rooftop, perimeter or open-area cable run\r\n              <\/td>\r\n\r\n              <td>\r\n                <span class=\"lypoe41-badge high\">\r\n                  Dual-end commonly used\r\n                <\/span>\r\n              <\/td>\r\n\r\n              <td>\r\n                Cable shielding, lightning zones, induced surge exposure and\r\n                SPD coordination.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Copper Ethernet link between separate buildings\r\n              <\/td>\r\n\r\n              <td>\r\n                <span class=\"lypoe41-badge high\">\r\n                  Protect both boundaries\r\n                <\/span>\r\n              <\/td>\r\n\r\n              <td>\r\n                Assess equipotential bonding and different earth potentials.\r\n                Consider whether fibre is the better system solution.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                High-value PTZ camera or critical security system\r\n              <\/td>\r\n\r\n              <td>\r\n                <span class=\"lypoe41-badge ok\">\r\n                  Coordinated protection\r\n                <\/span>\r\n              <\/td>\r\n\r\n              <td>\r\n                Protect the communication line and confirm coordinated AC or\r\n                DC power protection for the complete system.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n          <\/tbody>\r\n        <\/table>\r\n\r\n      <\/div>\r\n\r\n      <figure class=\"lypoe41-figure\">\r\n        <div class=\"lypoe41-figure-frame\">\r\n          <img loading=\"lazy\"\r\n            src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/poe-surge-protector-installation-scenarios.webp\"\r\n            alt=\"PoE surge protector placement for wall-mounted, pole-mounted and inter-building CCTV installations\"\r\n            width=\"1600\"\r\n            height=\"900\"\r\n            loading=\"lazy\"\r\n            decoding=\"async\"\r\n          >\r\n        <\/div>\r\n\r\n        <figcaption>\r\n          Protection placement varies between short exterior-wall cables,\r\n          remote pole-mounted cameras and copper Ethernet connections between\r\n          separate buildings.\r\n        <\/figcaption>\r\n      <\/figure>\r\n\r\n      <div class=\"lypoe41-callout warning\" style=\"margin-top:24px;\">\r\n\r\n        <h3>\r\n          Two SPDs do not solve every inter-building risk\r\n        <\/h3>\r\n\r\n        <p>\r\n          Where copper Ethernet connects separate structures, the designer\r\n          must also assess the earthing systems and equipotential bonding.\r\n          Fibre should be evaluated when eliminating the conductive connection\r\n          is technically and commercially practical.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-compatibility\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Product Compatibility\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"does-every-rj45-surge-protector-support-poe\"><\/span>\r\n        Does Every RJ45 Surge Protector Support PoE?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        No. RJ45 describes the physical connection, not the complete\r\n        electrical and transmission performance of the protector.\r\n      <\/p>\r\n\r\n      <p>\r\n        Two products may both have RJ45 sockets but support different data\r\n        rates, operating voltages, powered pairs, PoE power levels, cable\r\n        categories and grounding methods.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-decision\">\r\n\r\n        <div class=\"lypoe41-decision-row\">\r\n\r\n          <div class=\"lypoe41-decision-num\">\r\n            1\r\n          <\/div>\r\n\r\n          <div>\r\n            <strong>\r\n              What is the required Ethernet data rate?\r\n            <\/strong>\r\n            <br>\r\n            10\/100 Mbps, 1 Gigabit, 2.5 Gigabit, 5 Gigabit or 10 Gigabit.\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-decision-result\">\r\n            Do not accept \u201cRJ45 compatible\u201d as the answer.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-decision-row\">\r\n\r\n          <div class=\"lypoe41-decision-num\">\r\n            2\r\n          <\/div>\r\n\r\n          <div>\r\n            <strong>\r\n              Which PoE type and power class are used?\r\n            <\/strong>\r\n            <br>\r\n            IEEE 802.3af, 802.3at, 802.3bt Type 3 or 802.3bt Type 4.\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-decision-result\">\r\n            Confirm maximum continuous current and the complete power path.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-decision-row\">\r\n\r\n          <div class=\"lypoe41-decision-num\">\r\n            3\r\n          <\/div>\r\n\r\n          <div>\r\n            <strong>\r\n              How many pairs carry data and power?\r\n            <\/strong>\r\n            <br>\r\n            Check two-pair and four-pair operation and confirm which\r\n            conductors are protected.\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-decision-result\">\r\n            High-power PoE requires particular attention to all four pairs.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-decision-row\">\r\n\r\n          <div class=\"lypoe41-decision-num\">\r\n            4\r\n          <\/div>\r\n\r\n          <div>\r\n            <strong>\r\n              What cable and shielding arrangement is used?\r\n            <\/strong>\r\n            <br>\r\n            Cat5e, Cat6, Cat6A, UTP, FTP or another shielded construction.\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-decision-result\">\r\n            Confirm shield continuity and the intended bonding method.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-callout danger\" style=\"margin-top:24px;\">\r\n\r\n        <h3>\r\n          A common procurement mistake\r\n        <\/h3>\r\n\r\n        <p>\r\n          A 100 Mbps PoE protector may power the camera successfully but become\r\n          a bottleneck when the project requires Gigabit transmission. A\r\n          Gigabit label also does not automatically prove compatibility with\r\n          every PoE++ power level.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n      <p class=\"lypoe41-source-note\">\r\n        Availability depends on the selected model. Do not assume that every\r\n        LEEYEE or third-party RJ45 SPD supports every data rate or PoE type\r\n        listed in this guide.\r\n      <\/p>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-pairs\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Powered-Pair Arrangement\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"does-the-poe-spd-support-alternative-a-alternative-b-and-four-pair-poe\"><\/span>\r\n        Does the PoE SPD Support Alternative A, Alternative B and Four-Pair PoE?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        This question is especially important when a project uses older\r\n        10\/100 Mbps equipment, Gigabit Ethernet or high-power IEEE 802.3bt\r\n        devices.\r\n      <\/p>\r\n\r\n      <p>\r\n        Alternative A and Alternative B are also commonly described as Mode A\r\n        and Mode B. The buyer should confirm the actual pin assignment and\r\n        protected conductors rather than relying only on the marketing name.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-table-wrap\">\r\n\r\n        <table class=\"lypoe41-table\">\r\n\r\n          <thead>\r\n            <tr>\r\n              <th>PoE arrangement<\/th>\r\n              <th>How power is carried<\/th>\r\n              <th>What the SPD buyer must confirm<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n\r\n          <tbody>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Alternative A\r\n                <\/strong>\r\n                <br>\r\n                Often called Mode A\r\n              <\/td>\r\n\r\n              <td>\r\n                Power is applied through the pairs that also carry Ethernet\r\n                data in 10\/100 Mbps links.\r\n              <\/td>\r\n\r\n              <td>\r\n                Confirm protection of the required data and power conductors,\r\n                operating voltage, polarity and continuous current.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Alternative B\r\n                <\/strong>\r\n                <br>\r\n                Often called Mode B\r\n              <\/td>\r\n\r\n              <td>\r\n                In 10\/100 Mbps links, power can be applied through the pairs\r\n                that are not used for data transmission.\r\n              <\/td>\r\n\r\n              <td>\r\n                Confirm that the required spare pairs are protected and that\r\n                the product supports the project\u2019s actual pin assignment.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Gigabit Ethernet\r\n                <\/strong>\r\n              <\/td>\r\n\r\n              <td>\r\n                All four pairs participate in data transmission.\r\n              <\/td>\r\n\r\n              <td>\r\n                Confirm full eight-conductor signal protection, channel\r\n                bandwidth, insertion loss and return-loss performance.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Four-pair PoE\r\n                <\/strong>\r\n                <br>\r\n                IEEE 802.3bt\r\n              <\/td>\r\n\r\n              <td>\r\n                Power is delivered across both pairsets while all four pairs\r\n                can also carry data.\r\n              <\/td>\r\n\r\n              <td>\r\n                Confirm all-pair protection, continuous current capacity,\r\n                voltage drop, temperature rise and the supported PoE type.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n          <\/tbody>\r\n        <\/table>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-callout\">\r\n\r\n        <h3>\r\n          \u201cAll pairs protected\u201d should be supported by evidence\r\n        <\/h3>\r\n\r\n        <p>\r\n          Ask for the exact model\u2019s conductor diagram, transmission\r\n          specification and test report. A generic eight-pin RJ45 drawing does\r\n          not prove that every conductor has the correct protection circuit or\r\n          power-current capacity.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-passive\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Critical Compatibility Check\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"standard-ieee-poe-is-not-the-same-as-passive-poe\"><\/span>\r\n        Standard IEEE PoE Is Not the Same as Passive PoE\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <div class=\"lypoe41-two-col\">\r\n\r\n        <div>\r\n\r\n          <p>\r\n            Standard IEEE PoE equipment uses defined detection,\r\n            classification and power-delivery procedures. Passive PoE may\r\n            apply voltage directly to selected RJ45 pins without the same\r\n            negotiation process.\r\n          <\/p>\r\n\r\n          <p>\r\n            Some outdoor wireless equipment, bridges, access points and\r\n            proprietary CCTV systems use passive 24V, passive 48V or another\r\n            vendor-specific arrangement.\r\n          <\/p>\r\n\r\n          <p>\r\n            The fact that both systems use an RJ45 connector does not make\r\n            their surge protectors interchangeable.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <aside class=\"lypoe41-callout danger\">\r\n\r\n          <h3>\r\n            Confirm passive PoE before ordering\r\n          <\/h3>\r\n\r\n          <p>\r\n            Verify the DC voltage, polarity, pin assignment, maximum current,\r\n            cable pairs and equipment manufacturer requirements. Do not assume\r\n            that a protector marked 802.3af, 802.3at or 802.3bt is suitable for\r\n            a proprietary passive PoE system.\r\n          <\/p>\r\n\r\n        <\/aside>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-table-wrap\">\r\n\r\n        <table class=\"lypoe41-table\">\r\n\r\n          <thead>\r\n            <tr>\r\n              <th>System<\/th>\r\n              <th>Buyer information required<\/th>\r\n              <th>Main risk when incorrectly selected<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n\r\n          <tbody>\r\n\r\n            <tr>\r\n              <td>\r\n                IEEE 802.3af \/ at \/ bt\r\n              <\/td>\r\n\r\n              <td>\r\n                PoE type, power class, PSE output, PD demand, cable category\r\n                and network speed.\r\n              <\/td>\r\n\r\n              <td>\r\n                Insufficient current capacity, incorrect pair protection,\r\n                excessive voltage drop or reduced data performance.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Passive PoE\r\n              <\/td>\r\n\r\n              <td>\r\n                Exact voltage, polarity, pin assignment, powered pairs,\r\n                maximum current and device model.\r\n              <\/td>\r\n\r\n              <td>\r\n                Incorrect clamping voltage, wrong polarity assumptions or an\r\n                incompatible current path.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Proprietary high-power system\r\n              <\/td>\r\n\r\n              <td>\r\n                Manufacturer wiring diagram, startup demand, operating voltage,\r\n                peak current and required transmission rate.\r\n              <\/td>\r\n\r\n              <td>\r\n                Overheating, voltage drop, failed startup or damage to the\r\n                connected equipment.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n          <\/tbody>\r\n        <\/table>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-standards\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        PoE Power Levels\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"poe-standards-buyers-should-confirm\"><\/span>\r\n        PoE Standards Buyers Should Confirm\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        Network speed and PoE power are separate specifications. Confirm both.\r\n        A protector must carry the required DC power without excessive voltage\r\n        drop or temperature rise while maintaining the required Ethernet\r\n        signal performance.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-table-wrap\">\r\n\r\n        <table class=\"lypoe41-table\">\r\n\r\n          <thead>\r\n            <tr>\r\n              <th>PoE type<\/th>\r\n              <th>IEEE reference<\/th>\r\n              <th>Maximum PSE output<\/th>\r\n              <th>Approx. power available at PD<\/th>\r\n              <th>Buyer confirmation for the SPD<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n\r\n          <tbody>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Type 1 \/ PoE\r\n                <\/strong>\r\n              <\/td>\r\n\r\n              <td>\r\n                IEEE 802.3af\r\n              <\/td>\r\n\r\n              <td>\r\n                15.4 W\r\n              <\/td>\r\n\r\n              <td>\r\n                About 13 W\r\n              <\/td>\r\n\r\n              <td>\r\n                Working voltage, powering arrangement, data rate and protected\r\n                conductors.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Type 2 \/ PoE+\r\n                <\/strong>\r\n              <\/td>\r\n\r\n              <td>\r\n                IEEE 802.3at\r\n              <\/td>\r\n\r\n              <td>\r\n                30 W\r\n              <\/td>\r\n\r\n              <td>\r\n                25.5 W\r\n              <\/td>\r\n\r\n              <td>\r\n                Continuous current, connector temperature, voltage drop and\r\n                supported cable length.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Type 3 \/ PoE++\r\n                <\/strong>\r\n              <\/td>\r\n\r\n              <td>\r\n                IEEE 802.3bt\r\n              <\/td>\r\n\r\n              <td>\r\n                Up to 60 W\r\n              <\/td>\r\n\r\n              <td>\r\n                Up to approximately 51 W\r\n              <\/td>\r\n\r\n              <td>\r\n                Four-pair compatibility, current per path and all-pair signal\r\n                performance.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                <strong>\r\n                  Type 4 \/ High-Power PoE\r\n                <\/strong>\r\n              <\/td>\r\n\r\n              <td>\r\n                IEEE 802.3bt\r\n              <\/td>\r\n\r\n              <td>\r\n                Up to 90 W\r\n              <\/td>\r\n\r\n              <td>\r\n                Up to approximately 71 W\r\n              <\/td>\r\n\r\n              <td>\r\n                Confirm that the exact SPD model is rated and tested for the\r\n                required high-power four-pair application.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n          <\/tbody>\r\n        <\/table>\r\n\r\n      <\/div>\r\n\r\n      <p class=\"lypoe41-source-note\">\r\n        These power figures describe the PoE system category. They do not prove\r\n        that a particular SPD model is compatible. Final approval must use the\r\n        ordered protector\u2019s datasheet and test evidence.\r\n      <\/p>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-grounding\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Grounding and Bonding\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"does-a-poe-surge-protector-need-grounding\"><\/span>\r\n        Does a PoE Surge Protector Need Grounding?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        The protector needs the discharge and bonding path specified by its\r\n        manufacturer. Without that path, the SPD may not divert surge energy\r\n        as intended.\r\n      <\/p>\r\n\r\n      <p>\r\n        Not every product uses the same construction. Some PoE SPDs provide a\r\n        dedicated earth terminal. Other products are designed to bond through\r\n        a grounded metal enclosure, DIN rail, shielded connector system or\r\n        another manufacturer-defined mounting method.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-check-grid\">\r\n\r\n        <div class=\"lypoe41-check\">\r\n          <strong>\r\n            Use the specified bonding method\r\n          <\/strong>\r\n\r\n          <span>\r\n            Do not invent a grounding method that is not shown in the product\r\n            instructions.\r\n          <\/span>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n          <strong>\r\n            Keep the bonding path short\r\n          <\/strong>\r\n\r\n          <span>\r\n            Long, coiled or indirect conductors add impedance during fast\r\n            transient events.\r\n          <\/span>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n          <strong>\r\n            Check the metal pole connection\r\n          <\/strong>\r\n\r\n          <span>\r\n            A camera mounted on a metal pole does not automatically mean the\r\n            SPD is correctly bonded.\r\n          <\/span>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n          <strong>\r\n            Coordinate both ends\r\n          <\/strong>\r\n\r\n          <span>\r\n            For dual-end protection, confirm how both locations relate to the\r\n            site equipotential bonding system.\r\n          <\/span>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n          <strong>\r\n            Confirm shield continuity\r\n          <\/strong>\r\n\r\n          <span>\r\n            Shielded cables, connectors, patch panels and couplers must be\r\n            considered as one complete channel.\r\n          <\/span>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n          <strong>\r\n            Protect the power system too\r\n          <\/strong>\r\n\r\n          <span>\r\n            A signal-line SPD does not replace surge protection required on\r\n            the AC or DC supply feeding the switch and CCTV equipment.\r\n          <\/span>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-callout warning\" style=\"margin-top:24px;\">\r\n\r\n        <h3>\r\n          Shielded cable is not automatically a complete SPD solution\r\n        <\/h3>\r\n\r\n        <p>\r\n          Shielding can be an important part of the system, but its function\r\n          depends on the camera, PSE, connectors, patch panels and grounding\r\n          arrangement. Follow the approved design for the complete link rather\r\n          than treating the cable shield as a universal replacement for an\r\n          external protector.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-outdoor\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Environmental Selection\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"can-an-indoor-rj45-spd-be-installed-beside-an-outdoor-camera\"><\/span>\r\n        Can an Indoor RJ45 SPD Be Installed Beside an Outdoor Camera?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        Only when it is installed inside a suitable enclosure and the complete\r\n        assembly meets the environmental conditions of the site.\r\n      <\/p>\r\n\r\n      <p>\r\n        The RJ45 protector\u2019s own IP rating, cable glands, connector seals,\r\n        drainage, condensation control and operating temperature must all be\r\n        considered.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-card-grid\">\r\n\r\n        <div class=\"lypoe41-card\">\r\n\r\n          <div class=\"lypoe41-card-num\">\r\n            A\r\n          <\/div>\r\n\r\n          <h3>\r\n            Indoor cabinet\r\n          <\/h3>\r\n\r\n          <p>\r\n            DIN-rail or compact indoor units can be suitable when installed\r\n            inside a protected network cabinet with the required bonding.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-card\">\r\n\r\n          <div class=\"lypoe41-card-num\">\r\n            B\r\n          <\/div>\r\n\r\n          <h3>\r\n            Outdoor junction box\r\n          <\/h3>\r\n\r\n          <p>\r\n            Confirm enclosure IP rating, gland sealing, internal mounting,\r\n            condensation risk and space for the grounding conductor.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-card\">\r\n\r\n          <div class=\"lypoe41-card-num\">\r\n            C\r\n          <\/div>\r\n\r\n          <h3>\r\n            Direct outdoor mounting\r\n          <\/h3>\r\n\r\n          <p>\r\n            Use a product specifically designed and approved for direct wall,\r\n            pole or exposed outdoor installation.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-table-wrap\">\r\n\r\n        <table class=\"lypoe41-table\">\r\n\r\n          <thead>\r\n            <tr>\r\n              <th>Environmental item<\/th>\r\n              <th>What the buyer should confirm<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n\r\n          <tbody>\r\n\r\n            <tr>\r\n              <td>\r\n                Ingress protection\r\n              <\/td>\r\n\r\n              <td>\r\n                SPD enclosure rating or the rating of the complete external\r\n                junction box.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Temperature\r\n              <\/td>\r\n\r\n              <td>\r\n                Minimum and maximum operating temperature at the actual pole,\r\n                roof or roadside location.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Humidity and condensation\r\n              <\/td>\r\n\r\n              <td>\r\n                Internal condensation prevention, drainage and sealed cable\r\n                entry.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Corrosion\r\n              <\/td>\r\n\r\n              <td>\r\n                Housing, terminals, screws and mounting materials for coastal,\r\n                industrial or high-humidity locations.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Mechanical mounting\r\n              <\/td>\r\n\r\n              <td>\r\n                DIN rail, wall, panel, pole, junction-box or rack installation.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>\r\n                Cable management\r\n              <\/td>\r\n\r\n              <td>\r\n                Bend radius, strain relief, shield termination and separation\r\n                of protected and unprotected cables.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n          <\/tbody>\r\n        <\/table>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-model-proof\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Model-Specific Verification\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"what-evidence-should-be-checked-for-the-exact-poe-spd-model\"><\/span>\r\n        What Evidence Should Be Checked for the Exact PoE SPD Model?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        This guide explains how to select a product category. It is not a\r\n        substitute for the datasheet, installation instructions and test\r\n        evidence of the exact model being ordered.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-callout danger\">\r\n\r\n        <h3>\r\n          Do not transfer specifications from one RJ45 model to another\r\n        <\/h3>\r\n\r\n        <p>\r\n          A non-PoE Ethernet SPD, a 100 Mbps PoE SPD, a Gigabit PoE SPD and a\r\n          four-pair PoE++ SPD can use similar-looking RJ45 housings while\r\n          having very different circuits and operating limits.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-proof-grid\">\r\n\r\n        <div class=\"lypoe41-proof\">\r\n\r\n          <span class=\"lypoe41-proof-label\">\r\n            Document 1\r\n          <\/span>\r\n\r\n          <h3>\r\n            Exact model datasheet\r\n          <\/h3>\r\n\r\n          <p>\r\n            Check the model number, operating voltage, continuous current,\r\n            supported PoE type, network speed, cable category, mounting method\r\n            and environmental rating.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-proof\">\r\n\r\n          <span class=\"lypoe41-proof-label\">\r\n            Document 2\r\n          <\/span>\r\n\r\n          <h3>\r\n            Surge test data\r\n          <\/h3>\r\n\r\n          <p>\r\n            Confirm the test waveform, test mode, current per conductor or\r\n            pair, voltage protection values and the applicable standard\r\n            edition.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-proof\">\r\n\r\n          <span class=\"lypoe41-proof-label\">\r\n            Document 3\r\n          <\/span>\r\n\r\n          <h3>\r\n            Transmission performance\r\n          <\/h3>\r\n\r\n          <p>\r\n            Review the supported Ethernet rate, insertion loss, return loss\r\n            and other channel-performance data required by the project.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-proof\">\r\n\r\n          <span class=\"lypoe41-proof-label\">\r\n            Test 4\r\n          <\/span>\r\n\r\n          <h3>\r\n            PoE current and voltage-drop test\r\n          <\/h3>\r\n\r\n          <p>\r\n            High-power projects should confirm continuous current,\r\n            temperature rise and voltage drop at the intended PoE load.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-proof\">\r\n\r\n          <span class=\"lypoe41-proof-label\">\r\n            Drawing 5\r\n          <\/span>\r\n\r\n          <h3>\r\n            Protected-pair diagram\r\n          <\/h3>\r\n\r\n          <p>\r\n            Confirm which conductors are protected and whether the model\r\n            supports Alternative A, Alternative B, Gigabit and four-pair\r\n            powering as required.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-proof\">\r\n\r\n          <span class=\"lypoe41-proof-label\">\r\n            Drawing 6\r\n          <\/span>\r\n\r\n          <h3>\r\n            Grounding and installation drawing\r\n          <\/h3>\r\n\r\n          <p>\r\n            Verify the LINE and EQUIPMENT direction, bonding terminal,\r\n            enclosure connection and maximum recommended lead arrangement.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"lypoe41-callout success\" style=\"margin-top:24px;\">\r\n\r\n        <h3>\r\n          What LEEYEE should confirm before quotation\r\n        <\/h3>\r\n\r\n        <p>\r\n          LEEYEE should match the buyer\u2019s application to an actual available\r\n          model and provide the applicable datasheet and supporting documents.\r\n          No speed, PoE type, test standard or surge rating should be assumed\r\n          until the exact model is confirmed.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-buying\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        B2B Procurement\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"poe-surge-protector-procurement-checklist\"><\/span>\r\n        PoE Surge Protector Procurement Checklist\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        Do not issue an order using only \u201cRJ45 PoE surge protector\u201d as the\r\n        description. The supplier needs enough information to confirm both\r\n        transmission and surge-protection performance.\r\n      <\/p>\r\n\r\n      <figure class=\"lypoe41-figure\">\r\n\r\n        <div class=\"lypoe41-figure-frame\">\r\n          <img loading=\"lazy\"\r\n            src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/poe-surge-protector-oem-selection-checklist.webp\"\r\n            alt=\"PoE surge protector selection and OEM ordering checklist for CCTV and outdoor network projects\"\r\n            width=\"1600\"\r\n            height=\"900\"\r\n            loading=\"lazy\"\r\n            decoding=\"async\"\r\n          >\r\n        <\/div>\r\n\r\n        <figcaption>\r\n          Confirm network speed, PoE type, powered pairs, cable shielding,\r\n          surge performance, grounding, mounting and OEM requirements before\r\n          issuing a purchase order.\r\n        <\/figcaption>\r\n\r\n      <\/figure>\r\n\r\n      <div class=\"lypoe41-spec-list\">\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Application\r\n          <\/strong>\r\n\r\n          <p>\r\n            Fixed IP camera, PTZ camera, wireless access point, intercom,\r\n            access control or other PoE equipment.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Equipment model\r\n          <\/strong>\r\n\r\n          <p>\r\n            Provide the exact camera, access point, switch or injector model\r\n            whenever possible.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            PoE standard\r\n          <\/strong>\r\n\r\n          <p>\r\n            IEEE 802.3af, 802.3at, 802.3bt Type 3, 802.3bt Type 4 or a\r\n            proprietary passive system.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Maximum power\r\n          <\/strong>\r\n\r\n          <p>\r\n            Required power at the PSE and connected device, including startup,\r\n            heater, IR illumination and PTZ motor demand.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Network speed\r\n          <\/strong>\r\n\r\n          <p>\r\n            100 Mbps, 1 Gbps, 2.5 Gbps, 5 Gbps or 10 Gbps.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Cable category\r\n          <\/strong>\r\n\r\n          <p>\r\n            Cat5e, Cat6, Cat6A or the project-specified structured cabling\r\n            system.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Shielding\r\n          <\/strong>\r\n\r\n          <p>\r\n            UTP or shielded cable, shielded RJ45 connectors and required\r\n            shield continuity.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Power mode and pairs\r\n          <\/strong>\r\n\r\n          <p>\r\n            Alternative A, Alternative B, two-pair, four-pair or a\r\n            vendor-specific passive pin assignment.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Protected conductors\r\n          <\/strong>\r\n\r\n          <p>\r\n            Confirm protection of all required signal and power conductors,\r\n            particularly for Gigabit and four-pair PoE.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Operating voltage\r\n          <\/strong>\r\n\r\n          <p>\r\n            Maximum continuous operating voltage must be compatible with the\r\n            PoE system without unwanted operation.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Surge test data\r\n          <\/strong>\r\n\r\n          <p>\r\n            Test waveform, current per path, voltage protection values,\r\n            line-to-line and line-to-earth performance where applicable.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Transmission data\r\n          <\/strong>\r\n\r\n          <p>\r\n            Supported bandwidth, insertion loss, return loss and test method\r\n            for the required cable category and Ethernet speed.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Applicable standard\r\n          <\/strong>\r\n\r\n          <p>\r\n            Ask for the exact standard edition and report applicable to the\r\n            ordered model, not only a generic catalogue statement.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Grounding interface\r\n          <\/strong>\r\n\r\n          <p>\r\n            Dedicated terminal, DIN rail, shield connection, metal enclosure\r\n            or another manufacturer-defined bonding method.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Installation position\r\n          <\/strong>\r\n\r\n          <p>\r\n            Camera side, building entrance, switch side, injector side,\r\n            multi-channel cabinet or rack.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Environmental rating\r\n          <\/strong>\r\n\r\n          <p>\r\n            Indoor, external junction box or direct outdoor installation,\r\n            including IP and temperature requirements.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Mechanical format\r\n          <\/strong>\r\n\r\n          <p>\r\n            Inline RJ45, DIN rail, wall mount, panel mount, pole mount,\r\n            multi-channel wall box or 19-inch rack.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            OEM requirements\r\n          <\/strong>\r\n\r\n          <p>\r\n            Logo, label, housing colour, datasheet, packaging, barcode,\r\n            inspection and batch traceability.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Order quantity\r\n          <\/strong>\r\n\r\n          <p>\r\n            Sample quantity, project quantity, annual demand, replacement\r\n            units and expected delivery schedule.\r\n          <\/p>\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-spec\">\r\n          <strong>\r\n            Required documentation\r\n          <\/strong>\r\n\r\n          <p>\r\n            Datasheet, wiring drawing, test report, inspection record,\r\n            declaration and packaging specification.\r\n          <\/p>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-commissioning\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Installation Acceptance\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"what-should-be-checked-after-installation\"><\/span>\r\n        What Should Be Checked After Installation?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        A PoE SPD should not be accepted only because the camera powers on.\r\n        The installer should verify power, communication, sealing and bonding.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-check-grid\">\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Correct port direction\r\n          <\/strong>\r\n\r\n          <span>\r\n            Follow IN, OUT, LINE, EQUIPMENT or protected-side markings where\r\n            the design is directional.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            PoE negotiation\r\n          <\/strong>\r\n\r\n          <span>\r\n            Confirm that the switch identifies and powers the camera at the\r\n            intended PoE class.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Link speed\r\n          <\/strong>\r\n\r\n          <span>\r\n            Verify the negotiated Ethernet speed instead of checking only\r\n            whether video is visible.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Voltage drop\r\n          <\/strong>\r\n\r\n          <span>\r\n            Confirm reliable operation under maximum camera load, including\r\n            PTZ motors, IR illumination and enclosure heaters.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Grounding continuity\r\n          <\/strong>\r\n\r\n          <span>\r\n            Inspect the manufacturer-specified bonding connection and ensure\r\n            it is secure.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Cable separation\r\n          <\/strong>\r\n\r\n          <span>\r\n            Keep protected and unprotected cable sections separated to reduce\r\n            recoupling.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Outdoor sealing\r\n          <\/strong>\r\n\r\n          <span>\r\n            Inspect glands, gaskets, connector seals and junction-box covers.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-check\">\r\n\r\n          <strong>\r\n            Documentation\r\n          <\/strong>\r\n\r\n          <span>\r\n            Record the SPD model, location, protected device, grounding point\r\n            and installation date.\r\n          <\/span>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Avoid These Errors\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"common-poe-surge-protection-mistakes\"><\/span>\r\n        Common PoE Surge Protection Mistakes\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <div class=\"lypoe41-mistakes\">\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Buying by connector type only\r\n          <\/div>\r\n\r\n          <p>\r\n            RJ45 does not confirm PoE power, data rate, protected pairs or\r\n            surge performance.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Substituting a non-PoE Ethernet SPD\r\n          <\/div>\r\n\r\n          <p>\r\n            A data-line protector may use the same connector but lack the\r\n            voltage and current path required for PoE.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Installing an SPD without the required bond\r\n          <\/div>\r\n\r\n          <p>\r\n            A protector cannot perform as intended when its discharge path is\r\n            missing or incorrectly installed.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Using a 100 Mbps protector in a Gigabit project\r\n          <\/div>\r\n\r\n          <p>\r\n            The camera may operate, but network speed and video performance\r\n            can be restricted.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Assuming all PoE++ products are identical\r\n          <\/div>\r\n\r\n          <p>\r\n            Confirm Type 3 or Type 4, four-pair power, maximum current and the\r\n            exact test data of the ordered model.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Treating passive PoE as standard PoE\r\n          <\/div>\r\n\r\n          <p>\r\n            Passive systems may use different voltages, polarities and pin\r\n            assignments even though the connector is RJ45.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Mounting an indoor unit outdoors without an enclosure\r\n          <\/div>\r\n\r\n          <p>\r\n            Moisture, condensation and connector corrosion can cause failure\r\n            even when the surge circuit is correctly selected.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"lypoe41-mistake\">\r\n\r\n          <div class=\"lypoe41-mistake-title\">\r\n            Ignoring the switch power supply\r\n          <\/div>\r\n\r\n          <p>\r\n            Effective CCTV protection must consider both the Ethernet line and\r\n            the AC or DC supply feeding the network equipment.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\">\r\n\r\n      <div class=\"lypoe41-rfq\">\r\n\r\n        <div class=\"lypoe41-rfq-grid\">\r\n\r\n          <div>\r\n\r\n            <div\r\n              class=\"lypoe41-eyebrow\"\r\n              style=\"color:#9fd1ff;\"\r\n            >\r\n              RFQ Template\r\n            <\/div>\r\n\r\n            <h2><span class=\"ez-toc-section\" id=\"information-to-send-before-requesting-a-quote\"><\/span>\r\n              Information to Send Before Requesting a Quote\r\n            <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n            <p>\r\n              Providing these details helps the supplier avoid offering a\r\n              protector that fits the connector but does not fit the project.\r\n            <\/p>\r\n\r\n          <\/div>\r\n\r\n          <div class=\"lypoe41-copy-box\">\r\n            Application: Outdoor CCTV \/ PoE camera<br>\r\n            Camera or device model:<br>\r\n            Switch or injector model:<br>\r\n            Standard PoE or passive PoE:<br>\r\n            PoE standard: 802.3af \/ at \/ bt Type 3 \/ bt Type 4<br>\r\n            Passive PoE voltage and polarity, if applicable:<br>\r\n            Maximum camera or device power:<br>\r\n            Network speed: 100M \/ 1G \/ 2.5G \/ 5G \/ 10G<br>\r\n            Cable: Cat5e \/ Cat6 \/ Cat6A<br>\r\n            Shielded or unshielded:<br>\r\n            Alternative A \/ Alternative B \/ four-pair:<br>\r\n            Cable length:<br>\r\n            Installation: Camera side \/ switch side \/ both ends<br>\r\n            Mounting: Inline \/ DIN rail \/ wall \/ rack \/ outdoor box<br>\r\n            Environmental rating:<br>\r\n            Required surge test parameters:<br>\r\n            Grounding or bonding method:<br>\r\n            Quantity:<br>\r\n            OEM logo or packaging requirements:<br>\r\n            Required certificates and test reports:\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\" id=\"poe-faq\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        FAQ\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"poe-surge-protector-frequently-asked-questions\"><\/span>\r\n        PoE Surge Protector Frequently Asked Questions\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <div class=\"lypoe41-faq\">\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Do outdoor PoE cameras need surge protectors?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              They should be assessed for surge protection when their copper\r\n              Ethernet cables run outdoors, leave a building, connect to a\r\n              pole, cross an exposed area or connect equipment at separate\r\n              structures. The final arrangement depends on exposure,\r\n              grounding, cable route and acceptable downtime.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Should the PoE surge protector be installed near the camera or\r\n            switch?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              Install the protector close to the equipment or protection\r\n              boundary it is intended to protect. Remote and highly exposed\r\n              installations commonly use one near the field device and another\r\n              at the building entry or network-equipment side.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Is a surge protector required at both ends of an Ethernet cable?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              Not for every cable. Dual-end protection is commonly considered\r\n              for remote poles, rooftops, long outdoor runs, critical cameras\r\n              and links between separate structures. Short indoor links may\r\n              require a different approach.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Will a PoE surge protector reduce network speed?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              A correctly selected product should support its stated network\r\n              speed, but a lower-rated protector can become a bottleneck.\r\n              Confirm the required data rate and review insertion-loss and\r\n              transmission test information where available.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Does every Gigabit Ethernet SPD support PoE++?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              No. Gigabit describes data transmission performance. PoE++\r\n              compatibility also requires the appropriate operating voltage,\r\n              continuous current, powered-pair arrangement and thermal\r\n              performance.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            What is the difference between Mode A and Mode B PoE?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              Mode A and Mode B are commonly used names for Alternative A and\r\n              Alternative B. They describe different conductor-pair\r\n              arrangements for delivering power. The SPD must protect the\r\n              actual pairs and pin assignment used by the project.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Does a PoE++ surge protector need to protect all eight conductors?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              Four-pair IEEE 802.3bt systems use all four pairs for power and\r\n              can use all four pairs for data. The selected protector should\r\n              therefore have documented all-pair compatibility and sufficient\r\n              current and transmission performance.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Can a standard PoE SPD be used for passive PoE?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              Not automatically. Passive PoE may use a different voltage,\r\n              polarity or pin assignment. Confirm the exact equipment model\r\n              and passive PoE wiring before selecting the SPD.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Can a normal Ethernet surge protector be used for PoE?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              Only when the manufacturer confirms compatibility with the\r\n              required PoE voltage, powered pairs, current, power class and\r\n              network speed. A data-only Ethernet SPD may not be suitable.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Does a PoE SPD need a separate earth wire?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              It depends on the product design. Some models use a dedicated\r\n              earth terminal, while others bond through a shielded connector,\r\n              grounded enclosure, DIN rail or metal mounting point. Follow the\r\n              exact installation instructions for the selected model.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Can an indoor PoE SPD be installed in an outdoor box?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              It may be possible when the complete enclosure provides the\r\n              required ingress, temperature, condensation and corrosion\r\n              protection. Cable glands and the grounding arrangement must also\r\n              be included in the assessment.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n        <details>\r\n\r\n          <summary>\r\n            Which standard applies to surge protectors for PoE lines?\r\n          <\/summary>\r\n\r\n          <div class=\"lypoe41-faq-answer\">\r\n            <p>\r\n              IEC 61643-21 covers SPDs connected to telecommunications and\r\n              signalling networks, including networks that can provide power\r\n              on the same line, such as PoE. Buyers should request evidence\r\n              applicable to the exact product model and standard edition.\r\n            <\/p>\r\n          <\/div>\r\n\r\n        <\/details>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Technical References\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"sources-and-further-reading\"><\/span>\r\n        Sources and Further Reading\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <ol class=\"lypoe41-reference-list\">\r\n\r\n        <li>\r\n          IEC, IEC 61643-21:2025 \u2014 Surge protective devices connected to\r\n          telecommunications and signalling networks.\r\n          <a\r\n            href=\"https:\/\/webstore.iec.ch\/en\/publication\/69085\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View IEC publication\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          IEC, IEC 61643-22:2015 \u2014 Selection and application principles for\r\n          SPDs connected to telecommunications and signalling networks.\r\n          <a\r\n            href=\"https:\/\/webstore.iec.ch\/en\/publication\/22772\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View IEC publication\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          IEEE Standards Association, IEEE 802.3bt-2018 \u2014 Power over Ethernet\r\n          over four pairs.\r\n          <a\r\n            href=\"https:\/\/standards.ieee.org\/ieee\/802.3bt\/6749\/\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View IEEE standard overview\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          Fluke Networks, Four-Pair Power over Ethernet and PoE power levels.\r\n          <a\r\n            href=\"https:\/\/www.flukenetworks.com\/expertise\/learn-about\/four-pair-power-over-ethernet-poe-and-your-cabling-plant.html\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View technical overview\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          Axis Communications, Power Surges White Paper \u2014 outdoor camera,\r\n          building-entry and dual-point protection examples.\r\n          <a\r\n            href=\"https:\/\/whitepapers.axis.com\/en-us\/power-surges\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View Axis white paper\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          DEHN, Surge Protection for CCTV Systems \u2014 protection arrangements\r\n          for IP cameras and LAN cables.\r\n          <a\r\n            href=\"https:\/\/www.dehn-international.com\/sites\/default\/files\/media\/files\/cctv-wp007-e.pdf\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View DEHN white paper\r\n          <\/a>\r\n        <\/li>\r\n\r\n        <li>\r\n          Ubiquiti, Ethernet Surge Protector Datasheet \u2014 field-side and\r\n          building-entry installation example.\r\n          <a\r\n            href=\"https:\/\/dl.ui.com\/datasheets\/ETH-SP\/ETH-SP-G2_DS.pdf\"\r\n            target=\"_blank\"\r\n            rel=\"noopener noreferrer\"\r\n          >\r\n            View Ubiquiti datasheet\r\n          <\/a>\r\n        <\/li>\r\n\r\n      <\/ol>\r\n\r\n      <p class=\"lypoe41-source-note\">\r\n        External sources are provided for general technical reference.\r\n        Product selection must be based on the actual project conditions,\r\n        applicable local requirements and the datasheet and test evidence of\r\n        the ordered SPD model.\r\n      <\/p>\r\n\r\n    <\/section>\r\n\r\n    <section class=\"lypoe41-section\">\r\n\r\n      <div class=\"lypoe41-eyebrow\">\r\n        Related LEEYEE Resources\r\n      <\/div>\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"continue-the-technical-review\"><\/span>\r\n        Continue the Technical Review\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <div class=\"lypoe41-related-grid\">\r\n\r\n        <a\r\n          class=\"lypoe41-related-card\"\r\n          href=\"https:\/\/www.cnspd.com\/ethernet-surge-protector-the-definitive-whitepaper-for-global-network-infrastructure-leeyee-electrics\/\"\r\n          target=\"_blank\"\r\n          rel=\"noopener noreferrer\"\r\n        >\r\n          <span>\r\n            Technical White Paper\r\n          <\/span>\r\n\r\n          <strong>\r\n            Ethernet Surge Protection and Signal Integrity\r\n          <\/strong>\r\n\r\n          <p>\r\n            Review broader Ethernet, PoE++ and high-speed network protection\r\n            considerations.\r\n          <\/p>\r\n        <\/a>\r\n\r\n        <a\r\n          class=\"lypoe41-related-card\"\r\n          href=\"https:\/\/www.cnspd.com\/technical-downloads\/\"\r\n          target=\"_blank\"\r\n          rel=\"noopener noreferrer\"\r\n        >\r\n          <span>\r\n            Documentation\r\n          <\/span>\r\n\r\n          <strong>\r\n            Technical Downloads\r\n          <\/strong>\r\n\r\n          <p>\r\n            Review available datasheets, wiring information, manuals and\r\n            product documentation.\r\n          <\/p>\r\n        <\/a>\r\n\r\n        <a\r\n          class=\"lypoe41-related-card\"\r\n          href=\"https:\/\/www.cnspd.com\/factory-tour\/\"\r\n          target=\"_blank\"\r\n          rel=\"noopener noreferrer\"\r\n        >\r\n          <span>\r\n            Factory Evidence\r\n          <\/span>\r\n\r\n          <strong>\r\n            LEEYEE Factory Tour\r\n          <\/strong>\r\n\r\n          <p>\r\n            Review the production environment and manufacturing capability\r\n            before supplier approval.\r\n          <\/p>\r\n        <\/a>\r\n\r\n        <a\r\n          class=\"lypoe41-related-card\"\r\n          href=\"https:\/\/www.cnspd.com\/spd-manufacturer\/\"\r\n          target=\"_blank\"\r\n          rel=\"noopener noreferrer\"\r\n        >\r\n          <span>\r\n            Supplier Review\r\n          <\/span>\r\n\r\n          <strong>\r\n            Testing, Inspection and OEM Support\r\n          <\/strong>\r\n\r\n          <p>\r\n            Review sourcing support, inspection options and export\r\n            documentation for project and OEM orders.\r\n          <\/p>\r\n        <\/a>\r\n\r\n      <\/div>\r\n\r\n    <\/section>\r\n\r\n    <div class=\"lypoe41-cta\">\r\n\r\n      <h2><span class=\"ez-toc-section\" id=\"need-a-poe-spd-confirmed-for-your-cctv-project\"><\/span>\r\n        Need a PoE SPD Confirmed for Your CCTV Project?\r\n      <span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        Send the camera or device model, PoE type, data rate, cable category,\r\n        powered-pair arrangement, installation position, grounding method and\r\n        required quantity. LEEYEE will confirm whether an available model\r\n        matches the project before sample or bulk ordering.\r\n      <\/p>\r\n\r\n      <div class=\"lypoe41-btn-row\">\r\n\r\n        <a\r\n          href=\"javascript:void(0);\"\r\n          class=\"lypoe41-btn lypoe41-btn-primary leeyee-site-popup-btn\"\r\n          aria-label=\"Request a PoE Surge Protector Project Review\"\r\n        >\r\n          <span>\r\n            Request a Project Review\r\n          <\/span>\r\n        <\/a>\r\n\r\n        <a\r\n          href=\"https:\/\/www.cnspd.com\/technical-downloads\/\"\r\n          class=\"lypoe41-btn lypoe41-btn-secondary\"\r\n          target=\"_blank\"\r\n          rel=\"noopener noreferrer\"\r\n        >\r\n          <span>\r\n            View Technical Resources\r\n          <\/span>\r\n        <\/a>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n  <script>\r\n    document.addEventListener('DOMContentLoaded', function () {\r\n      var poePopupButtons = document.querySelectorAll(\r\n        '#poe-surge-protector-guide .leeyee-site-popup-btn'\r\n      );\r\n\r\n      poePopupButtons.forEach(function (button) {\r\n        button.addEventListener('click', function (event) {\r\n          event.preventDefault();\r\n\r\n          var realPopupTrigger = document.querySelector(\r\n            '.w-popup.ush_popup_1 .w-popup-trigger'\r\n          );\r\n\r\n          if (realPopupTrigger) {\r\n            realPopupTrigger.click();\r\n          } else {\r\n            window.open(\r\n              'https:\/\/www.cnspd.com\/contact\/',\r\n              '_blank',\r\n              'noopener'\r\n            );\r\n          }\r\n        });\r\n      });\r\n    });\r\n  <\/script>\r\n\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Engineering Selection Guide A PoE surge protector is not selected by the RJ45 connector alone. For an outdoor CCTV or network project, the protector must match the installation position, Ethernet data rate, PoE type, powered pairs, operating voltage, grounding method and environmental enclosure. Application: PoE CCTV and outdoor Ethernet Audience: Integrators, contractors and OEM buyers&#8230;<\/p>","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-30160","post","type-post","status-publish","format-standard","hentry","category-news","category-surge-protection","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PoE Surge Protector for CCTV: Placement &amp; Selection Guide<\/title>\n<meta name=\"description\" content=\"Learn where to install PoE surge protectors for CCTV cameras, when both ends are needed, and how to verify PoE, speed, grounding and OEM specifications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PoE Surge Protector for CCTV: Placement &amp; Selection Guide\" \/>\n<meta property=\"og:description\" content=\"Learn where to install PoE surge protectors for CCTV cameras, when both ends are needed, and how to verify PoE, speed, grounding and OEM specifications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cnspd.com\/fr\/poe-surge-protector\/\" \/>\n<meta property=\"og:site_name\" content=\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-16T07:38:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-17T08:42:06+00:00\" \/>\n<meta name=\"author\" content=\"Devin Ling\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Devin Ling\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"19 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/\"},\"author\":{\"name\":\"Devin Ling\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"headline\":\"PoE Surge Protector for CCTV Cameras and Outdoor Network Equipment\",\"datePublished\":\"2026-07-16T07:38:32+00:00\",\"dateModified\":\"2026-07-17T08:42:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/\"},\"wordCount\":4125,\"articleSection\":[\"News\",\"Surge Protection\",\"Technical Guides\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/\",\"name\":\"PoE Surge Protector for CCTV: Placement & Selection Guide\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\"},\"datePublished\":\"2026-07-16T07:38:32+00:00\",\"dateModified\":\"2026-07-17T08:42:06+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"description\":\"Learn where to install PoE surge protectors for CCTV cameras, when both ends are needed, and how to verify PoE, speed, grounding and OEM specifications.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/poe-surge-protector\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.cnspd.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PoE Surge Protector for CCTV Cameras and Outdoor Network Equipment\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/\",\"name\":\"Surge Protector, Surge Arrestor, Isolating Switch - 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