{"id":4866,"date":"2025-09-27T11:12:00","date_gmt":"2025-09-27T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/how-ethernet-transformers-reduce-emi\/"},"modified":"2026-06-22T06:41:11","modified_gmt":"2026-06-22T06:41:11","slug":"how-ethernet-transformers-reduce-emi","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-ethernet-transformers-reduce-emi","title":{"rendered":"C\u00e1ch bi\u1ebfn \u00e1p Ethernet gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) trong c\u00e1c h\u1ec7 th\u1ed1ng Ethernet"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c22e0f3470e04bb084bf9123ad5bc7d4.webp\" alt=\"Ethernet Transformers Reduce EMI \" class=\"wp-image-4863\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c22e0f3470e04bb084bf9123ad5bc7d4.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c22e0f3470e04bb084bf9123ad5bc7d4-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c22e0f3470e04bb084bf9123ad5bc7d4-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c22e0f3470e04bb084bf9123ad5bc7d4-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c22e0f3470e04bb084bf9123ad5bc7d4-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ea1ng Ethernet t\u1ed1c \u0111\u1ed9 cao r\u1ea5t d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-electromagnetic-interference\/\"><strong>nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI)<\/strong><\/a>, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 l\u00e0m suy gi\u1ea3m \u0111\u1ed9 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng. \u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\">B\u1ed9 bi\u1ebfn \u00e1p LAN<\/a>\u2014th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45\u2014\u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c c\u00e1ch ly c\u00e1c m\u1ea1ch, duy tr\u00ec t\u00edn hi\u1ec7u vi ph\u00e2n v\u00e0 \u1ee9c ch\u1ebf nhi\u1ec5u kh\u00f4ng mong mu\u1ed1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y kh\u00e1m ph\u00e1 c\u00e1ch Bi\u1ebfn \u00e1p Ethernet gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI), n\u00eau b\u1eadt c\u00e1c th\u1ef1c ti\u1ec5n thi\u1ebft k\u1ebf t\u1ed1t nh\u1ea5t nh\u1eb1m gi\u1ea3m thi\u1ec3u nhi\u1ec5u v\u00e0 gi\u1ea3i th\u00edch c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea3m \u1ee9ng (magnetics) c\u1ee7a LINK-PP gi\u00fap \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh c\u0169ng nh\u01b0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u1ec1 EMI\/EMC.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Ch\u1ee9c n\u0103ng c\u1ee7a B\u1ed9 bi\u1ebfn \u00e1p LAN<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>bi\u1ebfn \u00e1p LAN<\/strong>, c\u00f2n g\u1ecdi l\u00e0 c\u1ea3m \u1ee9ng Ethernet, \u0111\u01b0\u1ee3c \u0111\u1eb7t gi\u1eefa PHY Ethernet v\u00e0 c\u1ed5ng RJ45. Thi\u1ebft b\u1ecb n\u00e0y th\u1ef1c hi\u1ec7n ba ch\u1ee9c n\u0103ng ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00e1ch ly galvanic<\/strong> gi\u1eefa m\u1ea1ch v\u00e0 c\u00e1p xo\u1eafn \u0111\u00f4i b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi c\u00e1c xung \u0111i\u1ec7n v\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch \u0111i\u1ec7n th\u1ebf \u0111\u1ea5t.<\/p><\/li><li><p><strong>Gh\u00e9p n\u1ed1i t\u00edn hi\u1ec7u vi ph\u00e2n<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady.<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/common-mode-noise-in-ethernet-systems\/\"><strong>Nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung<\/strong><\/a><strong> v\u00e0 kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf nhi\u1ec5u<\/strong> c\u0169ng nh\u01b0 tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t\u2014t\u1ea5t c\u1ea3 \u0111\u1ec1u quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI).<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e1ch B\u1ed9 bi\u1ebfn \u00e1p LAN gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Nhi\u1ec5u vi ph\u00e2n so v\u1edbi nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00edn hi\u1ec7u Ethernet \u0111\u01b0\u1ee3c truy\u1ec1n theo c\u00e1c c\u1eb7p vi ph\u00e2n. Vi\u1ec7c truy\u1ec1n vi ph\u00e2n c\u00e2n b\u1eb1ng v\u1ed1n d\u0129 tri\u1ec7t ti\u00eau ph\u1ea7n l\u1edbn b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb. Bi\u1ebfn \u00e1p gi\u00fap duy tr\u00ec s\u1ef1 c\u00e2n b\u1eb1ng vi ph\u00e2n n\u00e0y v\u00e0 l\u00e0m suy gi\u1ea3m nhi\u1ec5u kh\u00f4ng mong mu\u1ed1n <strong>vi\u1ec7c kh\u1eed nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung<\/strong>, v\u1ed1n g\u00e2y ra nhi\u1ec5u \u0111i\u1ec7n t\u1eeb d\u1eabn truy\u1ec1n v\u00e0 b\u1ee9c x\u1ea1 n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Vai tr\u00f2 c\u1ee7a cu\u1ed9n ch\u1ed1ng nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung (CMC)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 bi\u1ebfn \u00e1p LAN hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng t\u00edch h\u1ee3p m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ethernet-common-mode-choke-cmc-guide\/\"><strong>cu\u1ed9n ch\u1ed1ng nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung (CMC)<\/strong><\/a>. CMC t\u1ea1o tr\u1edf kh\u00e1ng cao \u0111\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n ch\u1ebf \u0111\u1ed9 chung trong khi kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u01b0\u1eddng truy\u1ec1n d\u1eef li\u1ec7u vi ph\u00e2n. \u0110i\u1ec1u n\u00e0y gi\u1ea3m \u0111\u00e1ng k\u1ec3 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) d\u1eabn truy\u1ec1n tr\u00ean c\u00e1p c\u0169ng nh\u01b0 b\u1ee9c x\u1ea1 v\u00e0o kh\u00f4ng gian t\u1ef1 do.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Chi\u1ebfn l\u01b0\u1ee3c k\u1ebft cu\u1ed1i v\u00e0 \u0111i\u1ec3m gi\u1eefa (center-tap)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch c\u00e1c \u0111i\u1ec3m gi\u1eefa (center tap) v\u00e0 k\u1ebft cu\u1ed1i \u0111\u01b0\u1eddng d\u00e2y (v\u00ed d\u1ee5 nh\u01b0 m\u1ea1ch k\u1ebft cu\u1ed1i Bob Smith) gi\u00fap ki\u1ec3m so\u00e1t ph\u1ea3n x\u1ea1, x\u00e1c \u0111\u1ecbnh m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn ch\u1ebf \u0111\u1ed9 chung \u1ed5n \u0111\u1ecbnh v\u00e0 \u1ee9c ch\u1ebf hi\u1ec7n t\u01b0\u1ee3ng rung t\u1ea7n s\u1ed1 cao\u2014t\u1ea5t c\u1ea3 \u0111\u1ec1u g\u00f3p ph\u1ea7n gi\u1ea3m ph\u00e1t x\u1ea1 EMI.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Thi\u1ebft k\u1ebf PCB v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 h\u1ec7 th\u1ed1ng c\u1ea7n l\u01b0u \u00fd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 b\u1ed9 bi\u1ebfn \u00e1p LAN t\u1ed1t nh\u1ea5t c\u0169ng kh\u00f4ng th\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ee9c EMI th\u1ea5p n\u1ebfu thi\u1ebft k\u1ebf PCB v\u00e0 h\u1ec7 th\u1ed1ng kh\u00f4ng \u0111\u00fang. K\u1ef9 s\u01b0 n\u00ean tu\u00e2n th\u1ee7 c\u00e1c h\u01b0\u1edbng d\u1eabn sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1eb7t <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/443529.htm\">bi\u1ebfn \u00e1p LAN<\/a> or <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491473.htm\">\u0111\u1ea7u n\u1ed1i RJ45 t\u00edch h\u1ee3p c\u1ea3m \u1ee9ng<\/a> <strong>g\u1ea7n \u0111\u1ea7u n\u1ed1i nh\u1ea5t c\u00f3 th\u1ec3<\/strong> nh\u1eb1m gi\u1ea3m di\u1ec7n t\u00edch v\u00f2ng l\u1eb7p.<\/p><\/li><li><p>\u0110i d\u00e2y c\u00e1c c\u1eb7p vi ph\u00e2n Ethernet v\u1edbi <strong>tr\u1edf kh\u00e1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00e0 \u0111\u1ed9 d\u00e0i b\u1eb1ng nhau<\/strong> \u0111\u1ec3 ng\u0103n ch\u1eb7n chuy\u1ec3n \u0111\u1ed5i ch\u1ebf \u0111\u1ed9.<\/p><\/li><li><p>Cung c\u1ea5p h\u1ec7 th\u1ed1ng <strong>ti\u1ebfp \u0111\u1ecba v\u1eefng ch\u1eafc v\u00e0 c\u00e1c l\u1ed7 kim lo\u1ea1i (stitching vias)<\/strong> nh\u1eb1m t\u1ea1o \u0111\u01b0\u1eddng d\u1eabn tr\u1edf v\u1ec1 c\u00f3 tr\u1edf kh\u00e1ng th\u1ea5p.<\/p><\/li><li><p>C\u00e2n nh\u1eafc s\u1eed d\u1ee5ng th\u00eam c\u00e1c h\u1ea1t ferrite ho\u1eb7c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/network-filter-lan-filter-guide\/\">b\u1ed9 l\u1ecdc EMI<\/a> cho <strong>trong c\u00e1c thi\u1ebft k\u1ebf<\/strong> PoE (c\u1ea5p ngu\u1ed3n qua Ethernet).<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >n\u01a1i bi\u00ean \u0111\u1ed9 nhi\u1ec5u b\u1ecb thu h\u1eb9p h\u01a1n.<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>RJ45 t\u00edch h\u1ee3p c\u1ea3m \u1ee9ng so v\u1edbi c\u1ea3m \u1ee9ng r\u1eddi<\/strong>: Mang l\u1ea1i k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a PCB, hi\u1ec7u n\u0103ng EMI \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh ki\u1ec3m tra ch\u1ee9ng nh\u1eadn.<\/p><\/li><li><p><strong>C\u1ea3m \u1ee9ng r\u1eddi<\/strong>: Cho ph\u00e9p linh ho\u1ea1t trong b\u1ed1 tr\u00ed v\u1ecb tr\u00ed v\u00e0 c\u00f3 th\u1ec3 gi\u1ea3m chi ph\u00ed v\u1eadt t\u01b0 (BOM), nh\u01b0ng \u0111\u00f2i h\u1ecfi b\u1ed1 tr\u00ed PCB c\u1ea9n th\u1eadn h\u01a1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c \u1ee9c ch\u1ebf EMI t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft k\u1ebf Ethernet hi\u1ec7n \u0111\u1ea1i, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\">RJ45 t\u00edch h\u1ee3p c\u1ea3m \u1ee9ng<\/a> mang l\u1ea1i con \u0111\u01b0\u1eddng \u0111\u00e1ng tin c\u1eady h\u01a1n \u0111\u1ec3 v\u01b0\u1ee3t qua ch\u1ee9ng nh\u1eadn EMI\/EMC.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >M\u1ed9t s\u1ed1 m\u1eb9o th\u1ef1c ti\u1ec5n nh\u1eb1m gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) tr\u00ean Ethernet <\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ecdn b\u1ed9 bi\u1ebfn \u00e1p LAN c\u00f3 t\u00edch h\u1ee3p s\u1eb5n <strong>cu\u1ed9n ch\u1ed1ng nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung<\/strong>.<\/p><\/li><li><p>Gi\u1ea3m t\u1ed1i \u0111a chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng d\u1eabn gi\u1eefa RJ45 v\u00e0 bi\u1ebfn \u00e1p.<\/p><\/li><li><p>\u0110\u1ed3ng b\u1ed9 tr\u1edf kh\u00e1ng c\u1eb7p vi ph\u00e2n v\u00e0 tr\u00e1nh c\u00e1c \u0111o\u1ea1n d\u00e2y th\u1eeba (stubs).<\/p><\/li><li><p>K\u1ebft cu\u1ed1i theo khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-phy-physical-layer-basics-explained\/\">PHY<\/a> v\u00e0 c\u1ee7a bi\u1ebfn \u00e1p.<\/p><\/li><li><p>Th\u1ef1c hi\u1ec7n s\u1edbm c\u00e1c b\u00e0i ki\u1ec3m tra <strong>EMI ti\u1ec1n ch\u1ee9ng nh\u1eadn<\/strong> \u0111\u1ec3 x\u00e1c th\u1ef1c c\u00e1c l\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >Ghi ch\u00fa v\u1ec1 B\u1ed9 c\u1ea3m \u1ee9ng LAN c\u1ee7a LINK-PP<\/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\/7711f1be3e3c412aab54878b762bbe95.webp\" alt=\"LINK-PP LAN Magnetics\" class=\"wp-image-4864\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7711f1be3e3c412aab54878b762bbe95.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7711f1be3e3c412aab54878b762bbe95-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7711f1be3e3c412aab54878b762bbe95-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7711f1be3e3c412aab54878b762bbe95-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7711f1be3e3c412aab54878b762bbe95-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">LINK-PP<\/a> cung c\u1ea5p danh m\u1ee5c \u0111\u1ea7y \u0111\u1ee7 c\u00e1c <strong>B\u1ed9 bi\u1ebfn \u00e1p LAN<\/strong> and <strong>B\u1ed9 n\u1ed1i RJ45<\/strong> v\u1edbi c\u1ea3m \u1ee9ng t\u00edch h\u1ee3p, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t nh\u1eb1m gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c v\u1ec1 EMI v\u00e0 EMC trong c\u00e1c thi\u1ebft k\u1ebf Ethernet hi\u1ec7n \u0111\u1ea1i. C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y k\u1ebft h\u1ee3p kh\u1ea3 n\u0103ng c\u00e1ch ly hi\u1ec7u n\u0103ng cao, kh\u1ea3 n\u0103ng \u1ee9c ch\u1ebf nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung v\u00e0 ph\u1ed1i h\u1ee3p tr\u1edf kh\u00e1ng t\u1ed1i \u01b0u nh\u1eb1m \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p c\u1ea3m \u1ee9ng tr\u1ef1c ti\u1ebfp v\u00e0o \u0111\u1ea7u n\u1ed1i RJ45, c\u00e1c <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.rj45-modularjack.com\/supplier-26966-magnetic-rj45-jack\"><strong>ICMs<\/strong><\/a> c\u1ee7a LINK-PP gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a b\u1ed1 tr\u00ed PCB, gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n v\u00e0 n\u00e2ng cao kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t EMI so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p r\u1eddi r\u1ea1c. \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 <strong>b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng<\/strong>, <strong>servers<\/strong>, <strong>, and fiber optic links through interchangeable transceiver modules. Unlike standard RJ45 Ethernet ports, SFP ports can support both fiber optic and copper Ethernet connections depending on the installed module.<\/strong>, <strong>h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p<\/strong>, and <strong>thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 PoE<\/strong>, n\u01a1i t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb (EMC) \u1ed5n \u0111\u1ecbnh l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee7a LINK-PP <strong><p>RoHS compliant<\/p><\/strong> \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\"><strong>UL, RoHS, REACH<\/strong><\/a>, v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Kh\u00e1m ph\u00e1 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\">D\u00f2ng s\u1ea3n ph\u1ea9m B\u1ed9 bi\u1ebfn \u00e1p LAN c\u1ee7a LINK-PP<\/a> \u0111\u1ec3 t\u00ecm hi\u1ec3u c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a d\u00e0nh ri\u00eang cho m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao, \u1ee9c ch\u1ebf EMI v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 \u0111\u00e1ng tin c\u1eady c\u00e1c ti\u00eau chu\u1ea9n to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >K\u1ebft lu\u1eadn<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ed9 bi\u1ebfn \u00e1p LAN<\/strong> \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c gi\u1ea3m EMI b\u1eb1ng c\u00e1ch duy tr\u00ec t\u00edn hi\u1ec7u vi ph\u00e2n c\u00e2n b\u1eb1ng, c\u00e1ch ly c\u00e1c m\u1ea1ch v\u00e0 l\u00e0m suy gi\u1ea3m d\u00f2ng \u0111i\u1ec7n ch\u1ebf \u0111\u1ed9 chung. Khi k\u1ebft h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf PCB ph\u00f9 h\u1ee3p v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea3m \u1ee9ng t\u00edch h\u1ee3p ch\u1ea5t l\u01b0\u1ee3ng cao, ch\u00fang \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thi\u1ebft b\u1ecb Ethernet kh\u00f4ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh m\u00e0 c\u00f2n \u0111\u00e1p \u1ee9ng nghi\u00eam ng\u1eb7t c\u00e1c <strong>ti\u00eau chu\u1ea9n EMI\/EMC<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u c\u00e1ch bi\u1ebfn \u00e1p LAN v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh t\u00edch h\u1ee3p \u1ee9c ch\u1ebf nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) trong c\u00e1c h\u1ec7 th\u1ed1ng Ethernet. C\u00e1c m\u1eb9o thi\u1ebft k\u1ebf th\u1ef1c ti\u1ec5n, vai tr\u00f2 c\u1ee7a cu\u1ed9n ch\u1ed1ng nhi\u1ec5u chung (common-mode choke) v\u00e0 ghi ch\u00fa s\u1ea3n ph\u1ea9m LINK-PP.<\/p>","protected":false},"author":1,"featured_media":4865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[23],"class_list":["post-4866","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\/4866","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=4866"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4866\/revisions"}],"predecessor-version":[{"id":11061,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4866\/revisions\/11061"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4865"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}