{"id":4858,"date":"2025-09-27T11:12:00","date_gmt":"2025-09-27T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/poe-lan-transformers-in-ip-cameras\/"},"modified":"2026-06-22T09:04:02","modified_gmt":"2026-06-22T09:04:02","slug":"poe-lan-transformers-in-ip-cameras","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/poe-lan-transformers-in-ip-cameras","title":{"rendered":"C\u00e1c bi\u1ebfn \u00e1p LAN PoE trong camera IP \u2014 Truy\u1ec1n t\u1ea3i \u0111i\u1ec7n n\u0103ng v\u00e0 t\u00edn hi\u1ec7u \u0111\u00e1ng tin c\u1eady"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/553fe18b361a433b9cf26e48ed6f71d1-1024x608.webp\" alt=\"PoE LAN Transformers in IP Cameras \u2014 Reliable Power and Signal Transmission\" class=\"wp-image-4855\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/553fe18b361a433b9cf26e48ed6f71d1-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/553fe18b361a433b9cf26e48ed6f71d1-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/553fe18b361a433b9cf26e48ed6f71d1-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/553fe18b361a433b9cf26e48ed6f71d1-18x12.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/553fe18b361a433b9cf26e48ed6f71d1.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u2611 Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ip-internet-protocol-cameras-overview\/\">Camera IP<\/a> (Camera Giao th\u1ee9c Internet) \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n then ch\u1ed1t trong c\u00e1c h\u1ec7 th\u1ed1ng an ninh v\u00e0 gi\u00e1m s\u00e1t hi\u1ec7n \u0111\u1ea1i. Kh\u00e1c v\u1edbi c\u00e1c camera t\u01b0\u01a1ng t\u1ef1 truy\u1ec1n th\u1ed1ng, camera IP truy\u1ec1n d\u1eef li\u1ec7u video k\u1ef9 thu\u1eadt s\u1ed1 qua m\u1ea1ng Ethernet. Nhi\u1ec1u camera IP c\u0169ng t\u1eadn d\u1ee5ng <strong>c\u00f4ng ngh\u1ec7 Cung c\u1ea5p \u0111i\u1ec7n qua Ethernet (PoE)<\/strong> c\u00f4ng ngh\u1ec7 \u0111\u1ec3 nh\u1eadn ngu\u1ed3n \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp qua c\u00e1p Ethernet, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u00e0 gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a h\u1ec7 th\u1ed1ng d\u00e2y d\u1eabn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/452786.htm\"><strong>Bi\u1ebfn \u00e1p LAN h\u1ed7 tr\u1ee3 PoE<\/strong><\/a> \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y b\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p kh\u1ea3 n\u0103ng cung c\u1ea5p \u0111i\u1ec7n, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 \u1ee9c ch\u1ebf nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) trong m\u1ed9t m\u00f4-\u0111un nh\u1ecf g\u1ecdn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2611 C\u00e1c ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a b\u1ed9 bi\u1ebfn \u00e1p LAN PoE trong camera IP<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>C\u00e1ch ly \u0111i\u1ec7n<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n nh\u1ea1y c\u1ea3m c\u1ee7a camera IP kh\u1ecfi c\u00e1c xung \u0111i\u1ec7n \u00e1p v\u00e0 qu\u00e1 \u00e1p.<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n qu\u1ed1c t\u1ebf.<\/p><\/li>\n\n\n\n<li><p>Ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng do v\u00f2ng l\u1eb7p n\u1ed1i \u0111\u1ea5t, \u0111i\u1ec1u \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t ngo\u00e0i tr\u1eddi.<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Cung c\u1ea5p \u0111i\u1ec7n qua Ethernet<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>H\u1ed7 tr\u1ee3 c\u00e1c ti\u00eau chu\u1ea9n PoE IEEE 802.3af\/at\/bt, cho ph\u00e9p s\u1eed d\u1ee5ng c\u1ea3 camera c\u00f4ng su\u1ea5t th\u1ea5p v\u00e0 c\u00f4ng su\u1ea5t cao.<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m nhu c\u1ea7u v\u1ec1 c\u00e1p \u0111i\u1ec7n ri\u00eang bi\u1ec7t, gi\u00fap tri\u1ec3n khai d\u1ec5 d\u00e0ng h\u01a1n t\u1ea1i c\u00e1c v\u1ecb tr\u00ed l\u1eafp tr\u00ean tr\u1ea7n ho\u1eb7c \u1edf xa.<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>T\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>Duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u Ethernet t\u1ed1c \u0111\u1ed9 cao tr\u00ean c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i.<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m thi\u1ec3u ph\u1ea3n x\u1ea1 t\u00edn hi\u1ec7u, <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/crosstalk-definition-causes-types-effects\/\" target=\"_blank\" rel=\"\">nhi\u1ec5u xuy\u00ean k\u00eanh<\/a>, and <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/common-mode-noise-in-ethernet-systems\/\" target=\"_blank\" rel=\"\">vi\u1ec7c kh\u1eed nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung<\/a>, \u0111\u1ea3m b\u1ea3o lu\u1ed3ng video r\u00f5 n\u00e9t kh\u00f4ng b\u1ecb m\u00e9o h\u00ecnh.<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>\u1ee8c ch\u1ebf nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) v\u00e0 ti\u1ebfng \u1ed3n<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh t\u00edch h\u1ee3p trong b\u1ed9 bi\u1ebfn \u00e1p LAN l\u1ecdc nhi\u1ec5u t\u1ea7n s\u1ed1 cao.<\/p><\/li>\n\n\n\n<li><p>Gi\u00fap camera IP \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/emc-ems-emi-electromagnetic-compatibility-susceptibility-interference\/\" target=\"_blank\" rel=\"\">ki\u1ec3m tra EMC\/EMI<\/a> , \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p ho\u1eb7c \u0111\u00f4 th\u1ecb c\u00f3 nhi\u1ec1u thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u2611 V\u00ec sao b\u1ed9 bi\u1ebfn \u00e1p LAN PoE l\u1ea1i then ch\u1ed1t \u0111\u1ed1i v\u1edbi camera IP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu kh\u00f4ng c\u00f3 b\u1ed9 bi\u1ebfn \u00e1p LAN ph\u00f9 h\u1ee3p, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ip-internet-protocol-cameras-overview\/\">Camera IP<\/a> c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i c\u00e1c v\u1ea5n \u0111\u1ec1 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Lu\u1ed3ng video kh\u00f4ng \u1ed5n \u0111\u1ecbnh do nhi\u1ec5u t\u00edn hi\u1ec7u.<\/p><\/li>\n\n\n\n<li><p>H\u01b0 h\u1ecfng ph\u1ea7n c\u1ee9ng do xung \u0111i\u1ec7n \u00e1p ho\u1eb7c v\u00f2ng l\u1eb7p n\u1ed1i \u0111\u1ea5t.<\/p><\/li>\n\n\n\n<li><p>Kh\u00f3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n PoE, l\u00e0m h\u1ea1n ch\u1ebf c\u00e1c t\u00f9y ch\u1ecdn l\u1eafp \u0111\u1eb7t t\u1eeb xa.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.rj45-modularjack.com\/supplier-26979-poe-lan-transformer\"><strong>b\u1ed9 bi\u1ebfn \u00e1p LAN PoE<\/strong><\/a>, camera IP \u0111\u1ea1t \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Vi\u1ec7c cung c\u1ea5p \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh th\u00f4ng qua m\u1ed9t c\u00e1p duy nh\u1ea5t.<\/p><\/li>\n\n\n\n<li><p>Truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady cho video \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao (v\u00ed d\u1ee5: camera IP 4K ho\u1eb7c 8MP).<\/p><\/li>\n\n\n\n<li><p>Tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i h\u01a1n v\u00e0 b\u1ea3o v\u1ec7 n\u00e2ng cao cho c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed c\u1ee7a camera.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u2611 B\u1ed9 bi\u1ebfn \u00e1p LAN PoE LINK-PP d\u00e0nh cho camera IP<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/816686a7c8f34a899c142ebd215121e5.webp\" alt=\"LINK-PP PoE LAN Transformers\" class=\"wp-image-4856\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/816686a7c8f34a899c142ebd215121e5.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/816686a7c8f34a899c142ebd215121e5-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/816686a7c8f34a899c142ebd215121e5-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/816686a7c8f34a899c142ebd215121e5-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/816686a7c8f34a899c142ebd215121e5-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP cung c\u1ea5p nhi\u1ec1u lo\u1ea1i b\u1ed9 bi\u1ebfn \u00e1p LAN h\u1ed7 tr\u1ee3 PoE, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho camera IP v\u00e0 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/443530.htm\" target=\"_blank\" rel=\"\"><strong>LP5007NL<\/strong><\/a>: Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn d\u00e0nh cho bo m\u1ea1ch camera IP c\u00f3 kh\u00f4ng gian h\u1ea1n ch\u1ebf, cung c\u1ea5p PoE \u0111\u00e1ng tin c\u1eady.<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/443531.htm\" target=\"_blank\" rel=\"\"><strong>LP5009NL<\/strong><\/a>: B\u1ed9 bi\u1ebfn \u00e1p Ethernet PoE SMD 24 ch\u00e2n, t\u00edch h\u1ee3p th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh \u0111\u1ec3 \u1ee9c ch\u1ebf EMI.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u1ea3m b\u1ea3o vi\u1ec7c l\u1eafp \u0111\u1eb7t camera IP c\u1ee7a b\u1ea1n v\u1eeba <strong>an to\u00e0n<\/strong> and <strong>hi\u1ec7u qu\u1ea3<\/strong>, \u0111\u1ed3ng th\u1eddi truy\u1ec1n t\u1ea3i c\u1ea3 \u0111i\u1ec7n n\u0103ng v\u00e0 d\u1eef li\u1ec7u qua m\u1ed9t c\u00e1p Ethernet duy nh\u1ea5t v\u1edbi m\u1ee9c suy hao t\u00edn hi\u1ec7u t\u1ed1i thi\u1ec3u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2611 K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 bi\u1ebfn \u00e1p LAN PoE l\u00e0 th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi camera IP hi\u1ec7n \u0111\u1ea1i, k\u1ebft h\u1ee3p <strong>c\u00e1ch ly \u0111i\u1ec7n, \u1ee9c ch\u1ebf EMI, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u v\u00e0 h\u1ed7 tr\u1ee3 PoE<\/strong>. Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c b\u1ed9 bi\u1ebfn \u00e1p ch\u1ea5t l\u01b0\u1ee3ng cao, nh\u01b0 nh\u1eefng s\u1ea3n ph\u1ea9m t\u1eeb <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\">LINK-PP<\/a>, s\u1ebd \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t gi\u00e1m s\u00e1t \u0111\u00e1ng tin c\u1eady v\u00e0 b\u1ea3o v\u1ec7 l\u00e2u d\u00e0i cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c bi\u1ebfn \u00e1p LAN PoE gi\u00fap camera IP truy\u1ec1n d\u1eef li\u1ec7u v\u00e0 nh\u1eadn ngu\u1ed3n \u0111i\u1ec7n qua k\u1ebft n\u1ed1i Ethernet, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) v\u00e0 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb.<\/p>","protected":false},"author":1,"featured_media":4857,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[23],"class_list":["post-4858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-link-pp-lan-transformers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=4858"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4858\/revisions"}],"predecessor-version":[{"id":11363,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4858\/revisions\/11363"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4857"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}