{"id":11324,"date":"2025-10-16T09:15:50","date_gmt":"2025-10-16T07:15:23","guid":{"rendered":"https:\/\/frhub.netgear.com\/fr\/hub\/?page_id=11324"},"modified":"2025-10-24T18:59:20","modified_gmt":"2025-10-24T16:59:20","slug":"overview-of-official-poe-standards","status":"publish","type":"page","link":"https:\/\/frhub.netgear.com\/fr\/hub\/business\/av\/overview-of-official-poe-standards\/","title":{"rendered":"Aper\u00e7u des normes officielles PoE (et pourquoi les fabricants utilisent des terminologies diff\u00e9rentes)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignone size-full wp-image-10681\" style=\"border-radius: 1em;\" src=\"https:\/\/www.netgear.com\/uk\/hub\/wp-content\/uploads\/2025\/10\/PoE-cables.jpg\" alt=\"\" width=\"1048\" height=\"511\" \/><\/p>\n    <div class=\"table-of-content bg-gray\">\n        <p><strong>IN THIS ARTICLE<\/strong><\/p>\n        <ul>\n                        <li><a href=\"#topic1\">PoE dans les applications audiovisuelles<\/a><\/li>\n                        <li><a href=\"#topic2\">Les normes PoE officielles<\/a><\/li>\n                        <li><a href=\"#topic3\">Comparaison des param\u00e8tres PoE<\/a><\/li>\n                        <li><a href=\"#topic4\">Pourquoi les fabricants utilisent des noms PoE diff\u00e9rents<\/a><\/li>\n                        <li><a href=\"#topic5\">Conclusion<\/a><\/li>\n                        <li><a href=\"#topic6\">Plus d'informations<\/a><\/li>\n                    <\/ul>\n    <\/div>\n        <div id=\"topic1\" class=\"skip-item\">\n                        <h2>PoE dans les applications audiovisuelles<\/h2>\n                <p data-start=\"112\" data-end=\"553\">Dans les r\u00e9seaux AV sur IP, la fiabilit\u00e9 et la compatibilit\u00e9 sont essentielles. De plus en plus d\u2019\u00e9quipements audiovisuels sont aliment\u00e9s via le <strong data-start=\"257\" data-end=\"286\">Power over Ethernet (PoE)<\/strong>, permettant \u00e0 un seul c\u00e2ble r\u00e9seau de transmettre \u00e0 la fois les donn\u00e9es et l\u2019alimentation \u00e9lectrique. Cela simplifie grandement les installations, notamment dans des environnements complexes comme les th\u00e9\u00e2tres, les centres de conf\u00e9rence ou les b\u00e2timents historiques.<\/p>\n<p data-start=\"555\" data-end=\"895\">Cependant, la grande vari\u00e9t\u00e9 de noms et de normes PoE entra\u00eene souvent une confusion chez les techniciens AV, les int\u00e9grateurs et les concepteurs de syst\u00e8mes. Que signifient r\u00e9ellement des termes comme <strong data-start=\"757\" data-end=\"769\">\u00ab PoE+ \u00bb<\/strong>, <strong data-start=\"771\" data-end=\"788\">\u00ab Ultra PoE \u00bb<\/strong> ou <strong data-start=\"792\" data-end=\"805\">\u00ab 4PPoE \u00bb<\/strong> ? Et comment savoir si un switch ou une cam\u00e9ra est compatible avec votre infrastructure ?<\/p>\n    <\/div>\n        <div id=\"topic2\" class=\"skip-item\">\n                        <h2>Les normes PoE officielles<\/h2>\n                <h5 data-start=\"938\" data-end=\"965\"><strong data-start=\"943\" data-end=\"965\">IEEE 802.3af (PoE)<\/strong><\/h5>\n<p data-start=\"966\" data-end=\"1263\">Introduite en 2003, cette premi\u00e8re norme PoE officielle fournit jusqu\u2019\u00e0 <strong data-start=\"1038\" data-end=\"1052\">15,4 watts<\/strong> de puissance DC via des c\u00e2bles Cat5, avec environ <strong data-start=\"1103\" data-end=\"1130\">12,95 watts utilisables<\/strong> apr\u00e8s pertes dans le c\u00e2ble. Cela suffisait pour les premiers appareils PoE comme les t\u00e9l\u00e9phones IP et certains points d\u2019acc\u00e8s Wi-Fi.<\/p>\n<h5 data-start=\"1265\" data-end=\"1293\"><strong data-start=\"1270\" data-end=\"1293\">IEEE 802.3at (PoE+)<\/strong><\/h5>\n<p data-start=\"1294\" data-end=\"1653\">Publi\u00e9e en 2009, <strong data-start=\"1311\" data-end=\"1319\">PoE+<\/strong> a augment\u00e9 la puissance maximale \u00e0 <strong data-start=\"1355\" data-end=\"1367\">30 watts<\/strong>, permettant d\u2019alimenter des appareils plus exigeants comme les cam\u00e9ras de s\u00e9curit\u00e9 PTZ (Pan, Tilt, Zoom) et les nouveaux points d\u2019acc\u00e8s Wi-Fi. PoE+ est <strong data-start=\"1520\" data-end=\"1539\">r\u00e9trocompatible<\/strong> avec la norme 802.3af, ce qui signifie qu\u2019un switch PoE+ peut \u00e9galement alimenter des appareils PoE plus anciens.<\/p>\n<h5 data-start=\"1655\" data-end=\"1693\"><strong data-start=\"1660\" data-end=\"1693\">IEEE 802.3bt (PoE++ ou 4PPoE)<\/strong><\/h5>\n<p data-start=\"1694\" data-end=\"1758\">Approuv\u00e9e en 2018, cette norme introduit deux nouveaux types :<\/p>\n<ul data-start=\"1759\" data-end=\"1808\">\n<li data-start=\"1759\" data-end=\"1784\">\n<p data-start=\"1761\" data-end=\"1784\"><strong data-start=\"1761\" data-end=\"1782\">Type 3 (60 watts)<\/strong><\/p>\n<\/li>\n<li data-start=\"1785\" data-end=\"1808\">\n<p data-start=\"1787\" data-end=\"1808\"><strong data-start=\"1787\" data-end=\"1808\">Type 4 (90 watts)<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1810\" data-end=\"2059\">Elle permet d\u2019alimenter des appareils tr\u00e8s gourmands comme l\u2019\u00e9clairage LED, les \u00e9crans interactifs et m\u00eame certains ordinateurs portables. <strong data-start=\"1949\" data-end=\"1958\">PoE++<\/strong> ou <strong data-start=\"1962\" data-end=\"1971\">4PPoE<\/strong> utilise <strong data-start=\"1980\" data-end=\"2011\">les quatre paires torsad\u00e9es<\/strong> du c\u00e2ble r\u00e9seau pour fournir plus de puissance.<\/p>\n    <\/div>\n        <div id=\"topic3\" class=\"skip-item\">\n                        <h2>Comparaison des param\u00e8tres PoE<\/h2>\n                <table style=\"width:100%;min-width:760px;border-collapse:collapse\">\n<thead>\n<tr style=\"background:#f2f2f2\">\n<th style=\"border:1px solid #999;padding:8px;text-align:left\">Nom IEEE<\/th>\n<th style=\"border:1px solid #999;padding:8px;text-align:left\">Type 1<\/th>\n<th style=\"border:1px solid #999;padding:8px;text-align:left\">Type 2<\/th>\n<th style=\"border:1px solid #999;padding:8px;text-align:left\">Type 3<\/th>\n<th style=\"border:1px solid #999;padding:8px;text-align:left\">Type 4<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Nom courant<\/td>\n<td style=\"border:1px solid #999;padding:8px\">PoE<\/td>\n<td style=\"border:1px solid #999;padding:8px\">PoE+<\/td>\n<td style=\"border:1px solid #999;padding:8px\">PoE++ \/ 4PPoE<\/td>\n<td style=\"border:1px solid #999;padding:8px\">PoE++<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Puissance au PD<\/td>\n<td style=\"border:1px solid #999;padding:8px\">12,95 W<\/td>\n<td style=\"border:1px solid #999;padding:8px\">25,50 W<\/td>\n<td style=\"border:1px solid #999;padding:8px\">51 W<\/td>\n<td style=\"border:1px solid #999;padding:8px\">71,3 W<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Puissance max du PSE<\/td>\n<td style=\"border:1px solid #999;padding:8px\">15,40 W<\/td>\n<td style=\"border:1px solid #999;padding:8px\">30,0 W<\/td>\n<td style=\"border:1px solid #999;padding:8px\">60 W<\/td>\n<td style=\"border:1px solid #999;padding:8px\">90 W<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Plage de tension (PSE)<\/td>\n<td style=\"border:1px solid #999;padding:8px\">44\u201357 V<\/td>\n<td style=\"border:1px solid #999;padding:8px\">50\u201357 V<\/td>\n<td style=\"border:1px solid #999;padding:8px\">52\u201357 V<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Plage de tension (PD)<\/td>\n<td style=\"border:1px solid #999;padding:8px\">37\u201357 V<\/td>\n<td style=\"border:1px solid #999;padding:8px\">42,5\u201357 V<\/td>\n<td style=\"border:1px solid #999;padding:8px\">41,1\u201357 V<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Courant max<\/td>\n<td style=\"border:1px solid #999;padding:8px\">350 mA<\/td>\n<td style=\"border:1px solid #999;padding:8px\">600 mA\/pair<\/td>\n<td style=\"border:1px solid #999;padding:8px\">960 mA\/pair<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">R\u00e9sistance du c\u00e2ble<\/td>\n<td style=\"border:1px solid #999;padding:8px\">20 \u03a9 (Cat 3)<\/td>\n<td style=\"border:1px solid #999;padding:8px\">12,5 \u03a9 (Cat 5)<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Classes de puissance<\/td>\n<td style=\"border:1px solid #999;padding:8px\">1\u20133<\/td>\n<td style=\"border:1px solid #999;padding:8px\">1\u20134 ou LLDP<\/td>\n<td style=\"border:1px solid #999;padding:8px\">1\u20136 ou LLDP<\/td>\n<td style=\"border:1px solid #999;padding:8px\">1\u20138 ou LLDP<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">R\u00e9duction de puissance li\u00e9e \u00e0 la temp\u00e9rature<\/td>\n<td style=\"border:1px solid #999;padding:8px\">Aucun<\/td>\n<td style=\"border:1px solid #999;padding:8px\">5\u00b0C (2 paires)<\/td>\n<td style=\"border:1px solid #999;padding:8px\">10\u00b0C (4 paires)<\/td>\n<td style=\"border:1px solid #999;padding:8px\">10\u00b0C (pr\u00e9vu)<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">C\u00e2blage pris en charge<\/td>\n<td style=\"border:1px solid #999;padding:8px\">Cat 3 &amp; 5<\/td>\n<td style=\"border:1px solid #999;padding:8px\">Cat 5<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<td style=\"border:1px solid #999;padding:8px\">\u2014<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #999;padding:8px\">Modes<\/td>\n<td style=\"border:1px solid #999;padding:8px\">Mode A\/B<\/td>\n<td style=\"border:1px solid #999;padding:8px\">Mode A\/B<\/td>\n<td style=\"border:1px solid #999;padding:8px\">Mode A\/B \/ 4 paires<\/td>\n<td style=\"border:1px solid #999;padding:8px\">4 paires obligatoires<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>(Source : Wikipedia)<\/p>\n    <\/div>\n        <div id=\"topic4\" class=\"skip-item\">\n                        <h2>Pourquoi les fabricants utilisent des noms PoE diff\u00e9rents<\/h2>\n                <h3 data-start=\"3348\" data-end=\"3413\"><strong data-start=\"3352\" data-end=\"3413\">Pourquoi les fabricants utilisent des noms PoE diff\u00e9rents<\/strong><\/h3>\n<h5 data-start=\"3415\" data-end=\"3444\"><strong data-start=\"3420\" data-end=\"3444\">Strat\u00e9gies marketing<\/strong><\/h5>\n<p data-start=\"3445\" data-end=\"3631\">Pour se diff\u00e9rencier, les fabricants utilisent souvent des noms accrocheurs comme <strong data-start=\"3527\" data-end=\"3544\">\u00ab Ultra PoE \u00bb<\/strong> ou <strong data-start=\"3548\" data-end=\"3570\">\u00ab High Power PoE \u00bb<\/strong>, m\u00eame si ces produits respectent les normes IEEE existantes.<\/p>\n<h5 data-start=\"3633\" data-end=\"3673\"><strong data-start=\"3638\" data-end=\"3673\">Compatibilit\u00e9 et sp\u00e9cifications<\/strong><\/h5>\n<p data-start=\"3674\" data-end=\"3839\">Certains fournisseurs d\u00e9veloppent des solutions PoE <strong data-start=\"3726\" data-end=\"3743\">propri\u00e9taires<\/strong> optimis\u00e9es pour leurs propres appareils, d\u2019o\u00f9 l\u2019\u00e9mergence de termes comme <strong data-start=\"3818\" data-end=\"3838\">\u00ab enhanced PoE \u00bb<\/strong>.<\/p>\n<h5 data-start=\"3841\" data-end=\"3879\"><strong data-start=\"3846\" data-end=\"3879\">Innovation et diff\u00e9renciation<\/strong><\/h5>\n<p data-start=\"3880\" data-end=\"4050\">Les fabricants peuvent proposer de nouvelles fonctionnalit\u00e9s <strong data-start=\"3941\" data-end=\"3971\">avant leur standardisation<\/strong>, et leur attribuer des noms uniques pour mettre en avant leurs efforts en R&amp;D.<\/p>\n<h5 data-start=\"4052\" data-end=\"4101\"><strong data-start=\"4057\" data-end=\"4101\">Manque de connaissances des utilisateurs<\/strong><\/h5>\n<p data-start=\"4102\" data-end=\"4320\">Beaucoup d\u2019utilisateurs finaux ne connaissent pas les normes IEEE. Les fabricants emploient donc des termes simplifi\u00e9s pour s\u2019adresser \u00e0 un public <strong data-start=\"4249\" data-end=\"4266\">non technique<\/strong>, m\u00eame si ces termes ne sont pas techniquement exacts.<\/p>\n    <\/div>\n        <div id=\"topic5\" class=\"skip-item\">\n                        <h2>Conclusion<\/h2>\n                <p>M\u00eame si l\u2019<strong data-start=\"4357\" data-end=\"4396\">IEEE d\u00e9finit des normes PoE claires<\/strong>, les fabricants utilisent souvent des noms vari\u00e9s et des termes marketing. Cela peut pr\u00eater \u00e0 confusion, mais cette diversit\u00e9 d\u00e9coule g\u00e9n\u00e9ralement de la volont\u00e9 de <strong data-start=\"4561\" data-end=\"4577\">se d\u00e9marquer<\/strong>, de <strong data-start=\"4582\" data-end=\"4618\">vulgariser pour les utilisateurs<\/strong>, ou de combler le vide laiss\u00e9 par des normes en cours d\u2019\u00e9volution.<br data-start=\"4685\" data-end=\"4688\" \/>En comprenant les normes officielles et en <strong data-start=\"4731\" data-end=\"4780\">analysant attentivement les fiches techniques<\/strong>, les professionnels peuvent faire des choix plus judicieux pour r\u00e9pondre aux besoins de leur r\u00e9seau.<\/p>\n    <\/div>\n        <div id=\"topic6\" class=\"skip-item\">\n                        <h2>Plus d'informations<\/h2>\n                <p><!--SOLUTIONS NETGEAR AV --><br \/>\nPlus d\u2019informations sur nos solutions audiovisuelles<\/p>\n<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-241151160046\" style=\"max-width: 100%;max-height: 100%;width: 260px;height: 50.390625px\" data-hubspot-wrapper-cta-id=\"241151160046\"><a href=\"https:\/\/cta-na2.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLJf4HGLXU18h5HBrlQTZuKX4p21iriDX%2FD9Weo1E0jc26wgSp32sJpGF%2FrOb977gqk9Skq%2FVgamhq%2FXvCN0mPQ1dmrdARtcNUH8fV5cFOvngo8qJ8EuMyEq%2Fqu2y51zC2FZUVyu97opP5ixVGCiE%2Bg6BOgTVVDljEMF5hhhXUNpnikrl2UTN%2Bb3TA%3D%3D&amp;webInteractiveContentId=241151160046&amp;portalId=242128791\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" style=\"height: 100%;width: 100%;object-fit: fill\" src=\"https:\/\/hubspot-no-cache-na2-prod.s3.amazonaws.com\/cta\/default\/242128791\/interactive-241151160046.png\" alt=\"SOLUTIONS NETGEAR AV\" \/><br \/>\n<\/a><\/div>\n<p><!-- NETGEAR ACADEMY AV --><br \/>\nApprenez tout sur les r\u00e9seaux IP gr\u00e2ce \u00e0 la NETGEAR ACADEMY<\/p>\n<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-241151160033\" style=\"max-width: 100%;max-height: 100%;width: 260px;height: 50.390625px\" data-hubspot-wrapper-cta-id=\"241151160033\"><a href=\"https:\/\/cta-na2.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLJ6zgXxrLVJLagOt9pyIXf5%2FGgh9lUupWJj49Nfcbq71eIrrvJQt9JGeaQwNkTAPTWhI2%2BXk56NQscWP4xOQ7iZrhk6rkBjyO4dBlJGP1gG3BpcrdlgLyF%2F850K2l3xn5kDj5H%2Fur8VO2zJH58QH7by4HFWliY25223Shr3sQx25aCmNBjCDkNwA2WRum67F9fGyQyzoYOn86wAq%2Brw3xzsBDMbyw%3D%3D&amp;webInteractiveContentId=241151160033&amp;portalId=242128791\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" style=\"height: 100%;width: 100%;object-fit: fill\" src=\"https:\/\/hubspot-no-cache-na2-prod.s3.amazonaws.com\/cta\/default\/242128791\/interactive-241151160033.png\" alt=\"NETGEAR ACADEMY\" \/><br \/>\n<\/a><\/div>\n<p style=\"margin-bottom: 30px\"><!--CONTACTEZ L'EQUIPE PROAV --><br \/>\nNos ing\u00e9nieurs vous accompagneront gratuitement dans la r\u00e9alisation de vos projets audiovisuels<\/p>\n<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-241151160055\" style=\"max-width: 100%;max-height: 100%;width: 270px;height: 50.390625px\" data-hubspot-wrapper-cta-id=\"241151160055\"><a href=\"https:\/\/cta-na2.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLLUG9XShtF2ziGdRlpsMD%2BMJ39t1kFOE7VlHl2HmmlWzlJWH0rsV7f3eoQL53gclcWb0lliiDgK3EAMVvEOcIE7gW9aYOwk1uipv43pSUkBlDtiKJ%2BcB7fopWupnJbggqZWRkNERZkdh1dDGXHHDJX3V0sOA8mbXD%2Fd6QC2XK2OyVtrDNFDHbBoT6b15PyvF4Ca3b6JBNTYdAzYeH790XenlNKBP4OKZqw50t7IGx9DuADFMFlNdg6FWQ%3D%3D&amp;webInteractiveContentId=241151160055&amp;portalId=242128791\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" style=\"height: 100%;width: 100%;object-fit: fill\" src=\"https:\/\/hubspot-no-cache-na2-prod.s3.amazonaws.com\/cta\/default\/242128791\/interactive-241151160055.png\" alt=\"CONTACTEZ L'EQUIPE PROAV\" \/><br \/>\n<\/a><\/div>\n<p style=\"margin-top: 50px\"><iframe loading=\"lazy\" src=\"https:\/\/405nrr.share-na2.hsforms.com\/24AR2ZDSmQqWycFqf8q5-eg\" width=\"100%\" height=\"1200px\"><\/iframe><\/p>\n    <\/div>\n    \n","protected":false},"excerpt":{"rendered":"","protected":false},"author":98,"featured_media":11325,"parent":6754,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/blog-wifi.php","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"class_list":["post-11324","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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