{"id":2651,"date":"2026-03-14T00:00:00","date_gmt":"2026-03-14T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/electrical-sfp-transceiver-complete-guide\/"},"modified":"2026-06-22T03:57:53","modified_gmt":"2026-06-22T03:57:53","slug":"electrical-sfp-transceiver-complete-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/electrical-sfp-transceiver-complete-guide","title":{"rendered":"B\u1ed9 Chuy\u1ec3n \u0110\u1ed5i SFP \u0110i\u1ec7n: \u0110\u1ecbnh Ngh\u0129a, S\u1eed D\u1ee5ng v\u00e0 So S\u00e1nh"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af042b5d5b364c9ba904851f5af24f02-1024x536.jpg\" alt=\"Electrical SFP Transceiver: Definition, Use and Comparison\" class=\"wp-image-2641\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af042b5d5b364c9ba904851f5af24f02-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af042b5d5b364c9ba904851f5af24f02-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af042b5d5b364c9ba904851f5af24f02-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af042b5d5b364c9ba904851f5af24f02-18x9.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af042b5d5b364c9ba904851f5af24f02.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">B\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n<\/a> l\u00e0 m\u1ed9t m\u00f4-\u0111un m\u1ea1ng nh\u1ecf g\u1ecdn, c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong truy\u1ec1n th\u00f4ng d\u1eef li\u1ec7u v\u00e0 vi\u1ec5n th\u00f4ng. Kh\u00e1c v\u1edbi <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488474.htm\">SFP quang t\u01b0\u01a1ng th\u00edch<\/a>, v\u1ed1n truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1p quang b\u1eb1ng \u00e1nh s\u00e1ng, c\u00e1c b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n s\u1eed d\u1ee5ng giao di\u1ec7n \u0111\u1ed3ng\u2014th\u01b0\u1eddng th\u00f4ng qua \u0111\u1ea7u n\u1ed1i RJ45\u2014\u0111\u1ec3 truy\u1ec1n t\u00edn hi\u1ec7u d\u1eef li\u1ec7u theo c\u00e1ch \u0111i\u1ec7n tr\u00ean c\u00e1p \u0111\u1ed3ng xo\u1eafn \u0111\u00f4i. Ch\u00fang c\u00f3 s\u1eb5n \u1edf nhi\u1ec1u chu\u1ea9n kh\u00e1c nhau, bao g\u1ed3m <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476812.htm\">1000BASE-T<\/a> cho Ethernet t\u1ed1c \u0111\u1ed9 gigabit v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482688.htm\">10GBASE-T<\/a> cho \u1ee9ng d\u1ee5ng 10 Gbps, h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 100 m\u00e9t \u0111\u1ed1i v\u1edbi c\u00e1p Cat5e\/Cat6 trong tri\u1ec3n khai 1 Gbps v\u00e0 l\u00ean \u0111\u1ebfn 30\u201355 m\u00e9t \u1edf t\u1ed1c \u0111\u1ed9 10 Gbps t\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n mang l\u1ea1i l\u1ee3i th\u1ebf t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1ed3ng hi\u1ec7n c\u00f3, cho ph\u00e9p n\u00e2ng c\u1ea5p hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed m\u00e0 kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t c\u00e1p quang. Tuy nhi\u00ean, vi\u1ec7c tri\u1ec3n khai ch\u00fang \u0111i k\u00e8m m\u1ed9t s\u1ed1 l\u01b0u \u00fd nh\u01b0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n cao h\u01a1n so v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t SFP quang, nguy c\u01a1 v\u1ea5n \u0111\u1ec1 nhi\u1ec7t khi ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c \u1edf t\u1ed1c \u0111\u1ed9 cao, v\u00e0 d\u1ec5 b\u1ecb nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) tr\u00ean c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, gi\u1edbi h\u1ea1n v\u1eadn h\u00e0nh v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u00e1c m\u00f4-\u0111un n\u00e0y v\u1edbi c\u00e1c lo\u1ea1i c\u00f4ng t\u1eafc m\u1ea1ng kh\u00e1c nhau l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng nh\u1eb1m t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n, bao g\u1ed3m \u0111\u1ecbnh ngh\u0129a, \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m, so s\u00e1nh hi\u1ec7u n\u0103ng v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t SFP quang, h\u01b0\u1edbng d\u1eabn tri\u1ec3n khai th\u1ef1c t\u1ebf, chi\u1ebfn l\u01b0\u1ee3c x\u1eed l\u00fd s\u1ef1 c\u1ed1 v\u00e0 th\u00f4ng tin v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch. \u0110\u1ebfn cu\u1ed1i b\u00e0i vi\u1ebft n\u00e0y, ng\u01b0\u1eddi \u0111\u1ecdc s\u1ebd \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1ef1a ch\u1ecdn, tri\u1ec3n khai v\u00e0 b\u1ea3o tr\u00ec c\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0\u0110\u1ecbnh ngh\u0129a v\u00e0 t\u1ed5ng quan v\u1ec1 SFP \u0111i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n n\u00e0y cung c\u1ea5p n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt \u0111\u1ec3 hi\u1ec3u v\u1ec1 c\u00e1c b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n, c\u00e1c chu\u1ea9n c\u1ee7a ch\u00fang, c\u00e1c th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 c\u00e2n nh\u1eafc khi tri\u1ec3n khai th\u1ef1c t\u1ebf, l\u00e0m n\u1ec1n t\u1ea3ng cho c\u00e1c ph\u1ea7n ti\u1ebfp theo v\u1ec1 \u01b0u \u0111i\u1ec3m, so s\u00e1nh v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5e53250bdde947469d4b7b7dc0e4c6f8.jpg\" alt=\"Definition and Overview of Electrical SFP\" class=\"wp-image-2642\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5e53250bdde947469d4b7b7dc0e4c6f8.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5e53250bdde947469d4b7b7dc0e4c6f8-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5e53250bdde947469d4b7b7dc0e4c6f8-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5e53250bdde947469d4b7b7dc0e4c6f8-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5e53250bdde947469d4b7b7dc0e4c6f8-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t b\u1ed9 thu ph\u00e1t d\u1ea1ng nh\u1ecf c\u00f3 th\u1ec3 c\u1eafm r\u1eddi (Small Form-factor Pluggable \u2013 SFP) \u0111i\u1ec7n <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488475.htm\">B\u1ed9 thu ph\u00e1t (SFP)<\/a> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb m\u00f4-\u0111un \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 c\u00f4ng t\u1eafc v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u1edbi c\u00e1p \u0111\u1ed3ng nh\u1eb1m truy\u1ec1n d\u1eef li\u1ec7u. Kh\u00e1c v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t SFP quang ph\u1ee5 thu\u1ed9c v\u00e0o t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng, c\u00e1c b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n truy\u1ec1n d\u1eef li\u1ec7u theo c\u00e1ch \u0111i\u1ec7n tr\u00ean c\u00e1p \u0111\u1ed3ng xo\u1eafn \u0111\u00f4i, th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i RJ45. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c m\u1ea1ng Ethernet ti\u00eau chu\u1ea9n m\u00e0 kh\u00f4ng c\u1ea7n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n tu\u00e2n th\u1ee7 c\u00e1c chu\u1ea9n Ethernet \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>1000BASE-T<\/strong>: H\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 1 Gbps tr\u00ean c\u00e1p Cat5e ho\u1eb7c cao h\u01a1n, v\u1edbi kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a 100 m\u00e9t.<\/p><\/li>\n\n\n\n<li><p><strong>10GBASE-T<\/strong>: H\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 10 Gbps tr\u00ean c\u00e1p Cat6a ho\u1eb7c Cat7, v\u1edbi kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a 30\u201355 m\u00e9t, t\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng thay th\u1ebf n\u00f3ng, ngh\u0129a l\u00e0 ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ho\u1eb7c r\u00fat ra kh\u1ecfi thi\u1ebft b\u1ecb m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft h\u1ec7 th\u1ed1ng. Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c \u0111\u1eb7c t\u1ea3 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sff-8431-sfp-plus-10g-electrical-specification\/\">SFF-8431<\/a> and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sff-8432-standard-mechanical-design-of-sfp-modules\/\">SFF-8432<\/a> , \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau. C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n c\u0169ng th\u01b0\u1eddng ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n so v\u1edbi c\u00e1c phi\u00ean b\u1ea3n quang t\u01b0\u01a1ng \u1ee9ng, v\u1edbi c\u00e1c m\u00f4-\u0111un 10GBASE-T ti\u00eau bi\u1ec3u ti\u00eau th\u1ee5 t\u1eeb 2,5\u20134,5 W m\u1ed7i c\u1ed5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a c\u00e1c b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec7n bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/strong>: Chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p h\u01a1n khi n\u00e2ng c\u1ea5p c\u00e1c m\u1ea1ng \u0111\u1ed3ng hi\u1ec7n c\u00f3.<\/p><\/li>\n\n\n\n<li><p><strong>D\u1ec5 tri\u1ec3n khai<\/strong>: S\u1eed d\u1ee5ng c\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t s\u1eb5n, tr\u00e1nh vi\u1ec7c ph\u1ea3i l\u1eafp \u0111\u1eb7t c\u00e1p quang.<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch<\/strong>: H\u1ed7 tr\u1ee3 c\u00e1c giao th\u1ee9c Ethernet ti\u00eau chu\u1ea9n v\u00e0 c\u00f3 th\u1ec3 t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi c\u00e1c c\u00f4ng t\u1eafc \u0111a nh\u00e0 s\u1ea3n xu\u1ea5t tu\u00e2n th\u1ee7 <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\" target=\"_blank\" rel=\"\">Ti\u00eau chu\u1ea9n chung c\u1ee7a SFP (SFP MSA)<\/a> \u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p uy t\u00edn l\u00e0 m\u1ed9t.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng c\u1ea7n t\u00ednh \u0111\u1ebfn nh\u1eefng h\u1ea1n ch\u1ebf nh\u01b0 kho\u1ea3ng c\u00e1ch truy\u1ec1n t\u1ed1i \u0111a gi\u1ea3m khi t\u1ed1c \u0111\u1ed9 t\u0103ng cao, m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n v\u00e0 sinh nhi\u1ec7t t\u0103ng, c\u0169ng nh\u01b0 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\/\">nhi\u1ec5u \u0111i\u1ec7n t\u1eeb<\/a> (Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ed5ng quan v\u1ec1 SFP \u0111i\u1ec7n<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 273px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"273\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Module SFP \u0111i\u1ec7n<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"273\"><p>Giao di\u1ec7n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>RJ45 \/ \u0110\u1ed3ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"273\"><p>T\u1ed1c \u0110\u1ed9 T\u1ed1i \u0110a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 Gbps (m\u1ed9t s\u1ed1 SFP+ 10GBASE-T)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"273\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a 100 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"273\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p Ethernet \u0111\u1ed3ng (Cat5e\/6\/6a)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"273\"><p>K\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LAN doanh nghi\u1ec7p, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-tor-top-of-rack-switch\/\">\u0111\u1ea7u t\u1ee7 (top-of-rack)<\/a>, c\u00e1c k\u1ebft n\u1ed1i ng\u1eafn<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SFP \u0111i\u1ec7n c\u00f3 gi\u1ed1ng SFP \u0111\u1ed3ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c ng\u1eef c\u1ea3nh, \u201c<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482686.htm\">Module SFP \u0111i\u1ec7n<\/a>\u201d v\u00e0 \u201c<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491468.htm\">SFP \u0111\u1ed3ng<\/a>\u201d \u0111\u01b0\u1ee3c d\u00f9ng thay th\u1ebf cho nhau, v\u00ec c\u1ea3 hai \u0111\u1ec1u ch\u1ec9 c\u00e1c m\u00f4-\u0111un SFP truy\u1ec1n d\u1eef li\u1ec7u theo c\u00e1ch \u0111i\u1ec7n tr\u00ean c\u00e1p \u0111\u1ed3ng thay v\u00ec s\u1eed d\u1ee5ng c\u00e1p quang. Tuy nhi\u00ean, thu\u1eadt ng\u1eef \u201cSFP \u0111i\u1ec7n\u201d nh\u1ea5n m\u1ea1nh ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n t\u1ea3i, trong khi \u201cSFP \u0111\u1ed3ng\u201d nh\u1ea5n m\u1ea1nh m\u00f4i tr\u01b0\u1eddng v\u1eadt l\u00fd (c\u00e1p \u0111\u1ed3ng). D\u00f9 d\u00f9ng thu\u1eadt ng\u1eef n\u00e0o, c\u00e1c m\u00f4-\u0111un n\u00e0y \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng theo c\u00e1c chu\u1ea9n Ethernet v\u00e0 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 gigabit ho\u1eb7c \u0111a gigabit t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i m\u00f4-\u0111un c\u1ee5 th\u1ec3 v\u00e0 lo\u1ea1i c\u00e1p s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c ng\u1eef c\u1ea3nh, SFP \u0111i\u1ec7n v\u00e0 SFP \u0111\u1ed3ng \u0111\u01b0\u1ee3c d\u00f9ng thay th\u1ebf cho nhau. C\u1ea3 hai \u0111\u1ec1u ch\u1ec9 c\u00e1c m\u00f4-\u0111un SFP truy\u1ec1n t\u00edn hi\u1ec7u Ethernet \u0111i\u1ec7n tr\u00ean c\u00e1p \u0111\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ef1 kh\u00e1c bi\u1ec7t trong c\u00e1ch g\u1ecdi t\u00ean:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t SFP \u0111i\u1ec7n nh\u01b0 m\u1ed9t danh m\u1ee5c r\u1ed9ng h\u01a1n, bao g\u1ed3m c\u1ea3 <strong>RJ45 v\u00e0 c\u00e1c giao di\u1ec7n \u0111\u1ed3ng chuy\u00ean bi\u1ec7t<\/strong>.<\/p><\/li>\n\n\n\n<li><p>SFP \u0111\u1ed3ng th\u01b0\u1eddng ch\u1ec9 c\u1ee5 th\u1ec3 <strong>m\u00f4-\u0111un RJ45<\/strong> t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1p Ethernet ti\u00eau chu\u1ea9n.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eb9o th\u1ef1c t\u1ebf:<\/strong> Khi mua, h\u00e3y ki\u1ec3m tra xem m\u00f4-\u0111un c\u00f3 h\u1ed7 tr\u1ee3 r\u00f5 r\u00e0ng c\u00e1c y\u1ebfu t\u1ed1 sau hay kh\u00f4ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng t\u1eafc c\u1ee7a b\u1ea1n (Cisco, Juniper, HP, v.v.)<\/p><\/li>\n\n\n\n<li><p>T\u1ed1c \u0111\u1ed9 y\u00eau c\u1ea7u (1G, 10G)<\/p><\/li>\n\n\n\n<li><p>Gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch (t\u1ed1i \u0111a 100 m \u0111\u1ed1i v\u1edbi c\u00e1p \u0111\u1ed3ng)<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a SFP \u0111i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n (\u0111\u1ed3ng) l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng, qu\u1ea3n l\u00fd CNTT v\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh trung t\u00e2m d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y gi\u00fap l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t ph\u00f9 h\u1ee3p cho k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn, hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 t\u00edch h\u1ee3p v\u1edbi m\u1ea1ng k\u1ebf th\u1eeba.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/545ed653c9cf421ba79b246127ca9544.jpg\" alt=\"Advantages and Disadvantages of Electrical SFP\" class=\"wp-image-2643\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/545ed653c9cf421ba79b246127ca9544.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/545ed653c9cf421ba79b246127ca9544-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/545ed653c9cf421ba79b246127ca9544-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/545ed653c9cf421ba79b246127ca9544-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/545ed653c9cf421ba79b246127ca9544-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a m\u00f4-\u0111un SFP \u0111\u1ed3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n (\u0111\u1ed3ng) mang l\u1ea1i nhi\u1ec1u l\u1ee3i th\u1ebf v\u1ec1 m\u1eb7t v\u1eadn h\u00e0nh v\u00e0 h\u1eadu c\u1ea7n, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c \u0111ang khai th\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng Ethernet d\u1ef1a tr\u00ean c\u00e1p \u0111\u1ed3ng hi\u1ec7n c\u00f3:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Tri\u1ec3n khai ti\u1ebft ki\u1ec7m chi ph\u00ed<\/strong>: <a href=\"https:\/\/www.l-p.com\/products\/491612.htm\" target=\"_self\">SFP \u0111\u1ed3ng<\/a> lo\u1ea1i b\u1ecf nhu c\u1ea7u l\u1eafp \u0111\u1eb7t c\u00e1p quang, gi\u00fap gi\u1ea3m c\u1ea3 chi ph\u00ed v\u1eadt li\u1ec7u l\u1eabn nh\u00e2n c\u00f4ng.<\/p><\/li>\n\n\n\n<li><p><strong>Thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/strong>: C\u00e1c m\u00f4-\u0111un c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ho\u1eb7c th\u00e1o ra m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch, t\u1eeb \u0111\u00f3 gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng.<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i<\/strong>: Tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n Th\u1ecfa thu\u1eadn \u0110a nh\u00e0 cung c\u1ea5p SFP (SFP MSA) (SFF-8431\/SFF-8432) \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa nhi\u1ec1u nh\u00e0 cung c\u1ea5p kh\u00e1c nhau.<\/p><\/li>\n\n\n\n<li><p><strong>H\u1ed7 tr\u1ee3 chu\u1ea9n Ethernet ti\u00eau chu\u1ea9n<\/strong>: C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n h\u1ed7 tr\u1ee3 c\u00e1c chu\u1ea9n Ethernet ph\u1ed5 bi\u1ebfn:<\/p>\n<ul class=\"wp-block-list\">\n<li><p><strong>1000BASE-T<\/strong>: 1 Gbps l\u00ean \u0111\u1ebfn 100 m\u00e9t tr\u00ean c\u00e1p Cat5e\/Cat6.<\/p><\/li>\n\n\n\n<li><p><strong>10GBASE-T<\/strong>: 10 Gbps l\u00ean \u0111\u1ebfn 30\u201355 m\u00e9t tr\u00ean c\u00e1p Cat6a\/Cat7, t\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p.<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>B\u1ea3o tr\u00ec \u0111\u01a1n gi\u1ea3n<\/strong>: Vi\u1ec7c ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng nh\u1edd c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra c\u00e1p \u0111\u1ed3ng ti\u00eau chu\u1ea9n v\u00e0 m\u00e1y ph\u00e2n t\u00edch m\u1ea1ng.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea3ng t\u00f3m t\u1eaft nhanh c\u00e1c \u01b0u \u0111i\u1ec3m:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 285px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>L\u1ee3i th\u1ebf<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>L\u1ee3i \u00edch<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng chi ph\u00ed hi\u1ec7u qu\u1ea3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t c\u00e1p quang<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>H\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1i thi\u1ec3u khi n\u00e2ng c\u1ea5p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>T\u01b0\u01a1ng th\u00edch v\u1edbi h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng RJ45 hi\u1ec7n c\u00f3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>Tri\u1ec3n khai d\u1ec5 d\u00e0ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u1eafp \u0111\u1eb7t ki\u1ec3u \u201cc\u1eafm v\u00e0 ch\u1ea1y\u201d<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"285\"><p>\u0110\u1ed9 tin c\u1eady cao trong kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh \u2264100 m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a SFP \u0111i\u1ec7n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng v\u1eabn t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf k\u1ef9 thu\u1eadt so v\u1edbi c\u00e1c m\u00f4-\u0111un SFP quang:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>H\u1ea1n ch\u1ebf v\u1ec1 kho\u1ea3ng c\u00e1ch<\/strong>: Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1ed1i \u0111a ng\u1eafn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c m\u00f4-\u0111un SFP quang, \u0111\u1eb7c bi\u1ec7t \u1edf t\u1ed1c \u0111\u1ed9 10 Gbps.<\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng<\/strong>: C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng t\u1ed1c \u0111\u1ed9 cao h\u01a1n (v\u00ed d\u1ee5: 10GBASE-T) ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n (2,5\u20134,5 W m\u1ed7i c\u1ed5ng) v\u00e0 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u gi\u1ea3i ph\u00e1p qu\u1ea3n l\u00fd nhi\u1ec7t b\u1ed5 sung.<\/p><\/li>\n\n\n\n<li><p><strong>Nhi\u1ec5m \u0111i\u1ec7n t\u1eeb (EMI)<\/strong>: C\u00e1p \u0111\u1ed3ng d\u1ec5 b\u1ecb nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) h\u01a1n, c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec5u \u0111i\u1ec7n cao.<\/p><\/li>\n\n\n\n<li><p><strong>H\u1ea1n ch\u1ebf v\u1ec1 b\u0103ng th\u00f4ng<\/strong>: Hi\u1ec7u n\u0103ng c\u00f3 th\u1ec3 suy gi\u1ea3m tr\u00ean c\u00e1p ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p ho\u1eb7c \u1edf kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n, l\u00e0m gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 th\u00f4ng l\u01b0\u1ee3ng t\u1ed1i \u0111a \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea3ng t\u00f3m t\u1eaft nhanh c\u00e1c h\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 264px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"264\"><p>H\u1ea1n ch\u1ebf<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>T\u00e1c \u0111\u1ed9ng<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"264\"><p>Kho\u1ea3ng c\u00e1ch<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch xa<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"264\"><p>M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ea1o nhi\u1ec7t, y\u00eau c\u1ea7u th\u00f4ng gi\u00f3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"264\"><p>D\u1ec5 b\u1ecb nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3 th\u1ec3 x\u1ea3y ra nhi\u1ec5u t\u00edn hi\u1ec7u<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"264\"><p>T\u1ed1c \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u01b0\u1eddng gi\u1edbi h\u1ea1n \u1edf 1 Gbps (m\u1ed9t s\u1ed1 \u0111\u1ea1t 10 G)<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c v\u1ea5n \u0111\u1ec1 hi\u1ec7u n\u0103ng ph\u1ed5 bi\u1ebfn khi tri\u1ec3n khai SFP \u0111\u1ed3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ef9 s\u01b0 m\u1ea1ng n\u00ean l\u01b0u \u00fd c\u00e1c s\u1ef1 c\u1ed1 \u0111i\u1ec3n h\u00ecnh khi tri\u1ec3n khai SFP \u0111\u1ed3ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Gi\u1ea3m t\u1ed1c do nhi\u1ec7t (Thermal Throttling)<\/strong>: Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao c\u00f3 th\u1ec3 bu\u1ed9c b\u1ed9 chuy\u1ec3n m\u1ea1ch gi\u1ea3m t\u1ed1c \u0111\u1ed9 ho\u1eb7c t\u1ea1m th\u1eddi v\u00f4 hi\u1ec7u h\u00f3a c\u1ed5ng.<\/p><\/li>\n\n\n\n<li><p><strong>\u1ea2nh h\u01b0\u1edfng c\u1ee7a ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p<\/strong>: C\u00e1p \u0111\u1ed3ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t g\u00f3i tin, \u0111\u1ed9 tr\u1ec5 cao ho\u1eb7c th\u1ea5t b\u1ea1i trong t\u1ef1 \u0111\u00e0m ph\u00e1n (auto-negotiation).<\/p><\/li>\n\n\n\n<li><p><strong>V\u01b0\u1ee3t qu\u00e1 kho\u1ea3ng c\u00e1ch c\u00e1p cho ph\u00e9p<\/strong>: C\u1ed1 g\u1eafng v\u01b0\u1ee3t qu\u00e1 kho\u1ea3ng c\u00e1ch c\u00e1p t\u1ed1i \u0111a \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn k\u1ebft n\u1ed1i ch\u1eadp ch\u1eddn ho\u1eb7c gi\u1ea3m t\u1ed1c \u0111\u1ed9 li\u00ean k\u1ebft.<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch c\u1ed5ng<\/strong>: M\u1ed9t s\u1ed1 b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00e1c module \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn b\u1edfi nh\u00e0 cung c\u1ea5p c\u1ee5 th\u1ec3 \u0111\u1ec3 duy tr\u00ec th\u00f4ng l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady \u0111\u1ea7y \u0111\u1ee7.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eb9o th\u1ef1c t\u1ebf:<\/strong> Vi\u1ec7c gi\u00e1m s\u00e1t th\u01b0\u1eddng xuy\u00ean \u0111\u00e8n LED c\u1ed5ng, nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u00f4ng l\u01b0\u1ee3ng gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c s\u1edbm c\u00e1c v\u1ea5n \u0111\u1ec1 hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0So s\u00e1nh SFP \u0111i\u1ec7n v\u00e0 SFP quang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa module SFP \u0111i\u1ec7n (\u0111\u1ed3ng) v\u00e0 SFP quang (s\u1ee3i quang) \u0111\u00f2i h\u1ecfi hi\u1ec3u r\u00f5 v\u1ec1 <strong>nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh v\u1ec1 t\u1ed1c \u0111\u1ed9, kho\u1ea3ng c\u00e1ch, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 chi ph\u00ed tri\u1ec3n khai<\/strong>. So s\u00e1nh n\u00e0y gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng v\u00e0 qu\u1ea3n l\u00fd CNTT l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9e2e51e4a55c4481b8a1ef4c88c2ee53.jpg\" alt=\"Electrical vs. Optical SFP: Comparison\" class=\"wp-image-2644\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9e2e51e4a55c4481b8a1ef4c88c2ee53.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9e2e51e4a55c4481b8a1ef4c88c2ee53-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9e2e51e4a55c4481b8a1ef4c88c2ee53-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9e2e51e4a55c4481b8a1ef4c88c2ee53-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9e2e51e4a55c4481b8a1ef4c88c2ee53-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SFP quang l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SFP \u0111i\u1ec7n v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476862.htm\">SFP quang<\/a> Module th\u1ef1c hi\u1ec7n m\u1ee5c \u0111\u00edch t\u01b0\u01a1ng t\u1ef1\u2014cung c\u1ea5p giao di\u1ec7n m\u1ea1ng d\u1ea1ng m\u00f4-\u0111un, thay th\u1ebf n\u00f3ng \u0111\u01b0\u1ee3c\u2014nh\u01b0ng kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 m\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn, \u0111\u1eb7c t\u00ednh hi\u1ec7u n\u0103ng v\u00e0 k\u1ecbch b\u1ea3n tri\u1ec3n khai:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP \u0111i\u1ec7n (\u0111\u1ed3ng)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP quang (s\u1ee3i quang)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p xo\u1eafn \u0111\u00f4i \u0111\u1ed3ng (Cat5e, Cat6, Cat6a, Cat7)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p s\u1ee3i quang \u0111\u01a1n mode ho\u1eb7c \u0111a mode<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u00e1c t\u00f9y ch\u1ecdn t\u1ed1c \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 Gbps (1000BASE-T), 10 Gbps (10GBASE-T)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 Gbps, 10 Gbps, 25 Gbps, 40 Gbps, 100 Gbps<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 m (1 Gbps), 30\u201355 m (10 Gbps)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 10 km (\u0111\u01a1n mode), 300\u2013400 m (\u0111a mode)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0,5\u20131,5 W (1G), 2,5\u20134,5 W (10G)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0,5\u20131 W m\u1ed7i module (th\u1ea5p h\u01a1n SFP \u0111\u1ed3ng t\u1ed1c \u0111\u1ed9 cao)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Kh\u1ea3 N\u0103ng B\u1ecb \u1ea2nh H\u01b0\u1edfng b\u1edfi EMI<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao, nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p, mi\u1ec5n nhi\u1ec5m v\u1edbi EMI<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Cost<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p h\u01a1n cho k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed cao h\u01a1n, vi\u1ec7c l\u1eafp \u0111\u1eb7t s\u1ee3i quang c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Tri\u1ec3n khai<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00fd t\u01b0\u1edfng cho c\u00e1c m\u1ea1ng \u0111\u1ed3ng hi\u1ec7n c\u00f3 v\u00e0 c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1ee3c \u01b0u ti\u00ean cho c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng kho\u1ea3ng c\u00e1ch xa v\u00e0 c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Th\u00f4ng tin tr\u1ecdng y\u1ebfu:<\/strong><br>C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n c\u00f3 chi ph\u00ed hi\u1ec7u qu\u1ea3 cho c\u00e1c m\u1ea1ng doanh nghi\u1ec7p kho\u1ea3ng c\u00e1ch ng\u1eafn, trong khi c\u00e1c m\u00f4-\u0111un SFP s\u1ee3i quang l\u00e0 thi\u1ebft y\u1ebfu cho c\u00e1c m\u00f4i tr\u01b0\u1eddng kho\u1ea3ng c\u00e1ch xa, b\u0103ng th\u00f4ng cao v\u00e0 nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec5u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SFP RJ45 so v\u1edbi SFP s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476800.htm\">C\u00e1c m\u00f4-\u0111un SFP RJ45<\/a> l\u00e0 m\u1ed9t lo\u1ea1i m\u00f4-\u0111un SFP \u0111i\u1ec7n ph\u1ed5 bi\u1ebfn, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho Ethernet tr\u00ean c\u00e1p \u0111\u1ed3ng. Ng\u01b0\u1ee3c l\u1ea1i, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488431.htm\">c\u00e1c m\u00f4-\u0111un SFP s\u1ee3i quang<\/a> k\u1ebft n\u1ed1i qua c\u00e1c \u0111\u1ea7u n\u1ed1i LC, SC ho\u1eb7c MPO t\u1edbi c\u00e1p quang:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>module SFP RJ45<\/strong>:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>C\u1eafm tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c c\u1ed5ng Ethernet ti\u00eau chu\u1ea9n tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch.<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng v\u00e0 c\u00e1c t\u00ednh n\u0103ng Ethernet ti\u00eau chu\u1ea9n.<\/p><\/li>\n\n\n\n<li><p>B\u1ecb gi\u1edbi h\u1ea1n b\u1edfi ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p v\u00e0 kho\u1ea3ng c\u00e1ch; m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n cao h\u01a1n \u1edf t\u1ed1c \u0111\u1ed9 10G.<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Module SFP quang<\/strong>:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Y\u00eau c\u1ea7u c\u00e1p n\u1ed1i s\u1ee3i quang v\u00e0 b\u1ed9 thu ph\u00e1t quang.<\/p><\/li>\n\n\n\n<li><p>C\u00f3 th\u1ec3 bao ph\u1ee7 kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n v\u1edbi suy hao t\u00edn hi\u1ec7u g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3.<\/p><\/li>\n\n\n\n<li><p>Ti\u00eau th\u1ee5 \u0111i\u1ec7n th\u1ea5p h\u01a1n, t\u1ea3i nhi\u1ec7t t\u1ed1i thi\u1ec3u v\u00e0 mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI).<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 223px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP RJ45<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p>Lo\u1ea1i \u0111\u1ea7u n\u1ed1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>RJ45<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LC\/SC<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m \u2013 80 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p>B\u1ecb gi\u1edbi h\u1ea1n b\u1edfi c\u00e1p \u0111\u1ed3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ea1n ch\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao (10G, 25G, 40G+)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p>Cost<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p h\u01a1n cho kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed ban \u0111\u1ea7u cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng c\u00e1p \u0111\u1ed3ng hi\u1ec7n c\u00f3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Y\u00eau c\u1ea7u c\u00e1p s\u1ee3i quang<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00f3m T\u1eaft<\/strong>: C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n (bao g\u1ed3m c\u1ea3 m\u00f4-\u0111un RJ45) l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u cho c\u00e1c tri\u1ec3n khai chi ph\u00ed nh\u1ea1y c\u1ea3m, kho\u1ea3ng c\u00e1ch ng\u1eafn n\u01a1i c\u00e1p \u0111\u1ed3ng \u0111\u00e3 t\u1ed3n t\u1ea1i. C\u00e1c m\u00f4-\u0111un SFP s\u1ee3i quang v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 cao, kho\u1ea3ng c\u00e1ch xa v\u00e0 d\u1ec5 b\u1ecb nhi\u1ec5u, cung c\u1ea5p kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u0111\u1ed9 tin c\u1eady v\u01b0\u1ee3t tr\u1ed9i cho c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0C\u00e1ch s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n RJ45<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n RJ45 l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476771.htm\">hot-swappable transceivers<\/a> cho ph\u00e9p c\u00e1p Ethernet ti\u00eau chu\u1ea9n k\u1ebft n\u1ed1i v\u1edbi c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c m\u00e1y ch\u1ee7 h\u1ed7 tr\u1ee3 SFP. Vi\u1ec7c hi\u1ec3u r\u00f5 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/blog\/how-to-install-an-sfp-module-step-by-step-guide.htm\">c\u00e1ch l\u1eafp \u0111\u1eb7t<\/a> v\u00e0 s\u1eed d\u1ee5ng ch\u00fang \u0111\u00fang c\u00e1ch \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t m\u1ea1ng t\u1ed1i \u01b0u v\u00e0 ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 nh\u01b0 qu\u00e1 nhi\u1ec7t ho\u1eb7c l\u1ed7i k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/043bb6aef72949d98dd0d4fa9f59687a.jpg\" alt=\"How to Use RJ45 Electrical SFP Modules\" class=\"wp-image-2645\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/043bb6aef72949d98dd0d4fa9f59687a.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/043bb6aef72949d98dd0d4fa9f59687a-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/043bb6aef72949d98dd0d4fa9f59687a-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/043bb6aef72949d98dd0d4fa9f59687a-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/043bb6aef72949d98dd0d4fa9f59687a-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00f3 th\u1ec3 c\u1eafm c\u00e1p Ethernet v\u00e0o c\u1ed5ng SFP kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn l\u00e0 li\u1ec7u b\u1ea1n c\u00f3 th\u1ec3 c\u1eafm tr\u1ef1c ti\u1ebfp c\u00e1p Ethernet ti\u00eau chu\u1ea9n v\u00e0o c\u1ed5ng SFP hay kh\u00f4ng. C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 <strong>kh\u00f4ng<\/strong>\u2014c\u00e1c khe SFP tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn kh\u00f4ng ch\u1ea5p nh\u1eadn c\u00e1p RJ45 tr\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>RJ45 SFP gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y nh\u01b0 th\u1ebf n\u00e0o:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>M\u00f4-\u0111un SFP \u0111i\u1ec7n RJ45 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/media-converters-what-they-are-and-how-media-converters-work\/\" target=\"_blank\" rel=\"\">b\u1ed9 chuy\u1ec3n \u0111\u1ed5i m\u00f4i tr\u01b0\u1eddng<br><\/a>, cho ph\u00e9p khe SFP giao ti\u1ebfp v\u1edbi c\u00e1p Ethernet \u0111\u1ed3ng.<\/p><\/li>\n\n\n\n<li><p>M\u00f4-\u0111un c\u1eafm tr\u1ef1c ti\u1ebfp v\u00e0o c\u1ed5ng SFP, cung c\u1ea5p \u0111\u1ea7u n\u1ed1i RJ45 chu\u1ea9n \u1edf ph\u00eda b\u00ean kia.<\/p><\/li>\n\n\n\n<li><p>C\u00e1c c\u00e1p Ethernet chu\u1ea9n (Cat5e, Cat6, Cat6a) sau \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u00f4-\u0111un.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea3ng M\u1eb9o Nhanh: K\u1ebft n\u1ed1i Ethernet sang SFP<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 113px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"113\"><p>B\u01b0\u1edbc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>H\u00e0nh \u0111\u1ed9ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Ghi ch\u00fa<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"113\"><p>1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ch\u00e8n m\u00f4-\u0111un SFP RJ45 v\u00e0o khe SFP<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ea3m b\u1ea3o \u0111\u1ecbnh h\u01b0\u1edbng ch\u00ednh x\u00e1c; h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"113\"><p>2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i c\u00e1p Ethernet<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng c\u00e1p Cat5e\/6\/6a ph\u00f9 h\u1ee3p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"113\"><p>3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ki\u1ec3m tra tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u00e8n LED tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i k\u1ebft n\u1ed1i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"113\"><p>4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u1ea5u h\u00ecnh c\u1ed5ng chuy\u1ec3n m\u1ea1ch n\u1ebfu c\u1ea7n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t s\u1ed1 b\u1ed9 chuy\u1ec3n m\u1ea1ch y\u00eau c\u1ea7u b\u1eadt ch\u1ee9c n\u0103ng t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch s\u1eed d\u1ee5ng SFP RJ45<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 tri\u1ec3n khai SFP \u0111i\u1ec7n RJ45 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476801.htm\">m\u00f4-\u0111un SFP<\/a> m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3, h\u00e3y l\u00e0m theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch<\/strong>: \u0110\u1ea3m b\u1ea3o m\u00f4-\u0111un SFP t\u01b0\u01a1ng th\u00edch v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n. Nhi\u1ec1u thi\u1ebft b\u1ecb y\u00eau c\u1ea7u c\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ee9ng nh\u1eadn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ea7y \u0111\u1ee7 ch\u1ee9c n\u0103ng v\u00e0 tr\u00e1nh l\u1ed7i.<\/p><\/li>\n\n\n\n<li><p><strong>T\u1eaft ngu\u1ed3n n\u1ebfu \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb<\/strong>: M\u1eb7c d\u00f9 m\u00f4-\u0111un SFP h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, h\u00e3y tham kh\u1ea3o t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ec3 x\u00e1c minh xem vi\u1ec7c t\u1eaft\/b\u1eadt ngu\u1ed3n ng\u1eafn c\u00f3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb trong qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t hay kh\u00f4ng.<\/p><\/li>\n\n\n\n<li><p><strong>Ch\u00e8n m\u00f4-\u0111un SFP<\/strong>: C\u0103n ch\u1ec9nh m\u00f4-\u0111un v\u1edbi <a href=\"https:\/\/www.l-p.com\/store-21645-sfp-cages-connectors.htm\" target=\"_self\">ng\u0103n ch\u1ee9a SFP<\/a> v\u00e0 \u0111\u1ea9y nh\u1eb9 cho \u0111\u1ebfn khi nghe ti\u1ebfng \u201cc\u1ea1ch\u201d. Tr\u00e1nh d\u00f9ng l\u1ef1c m\u1ea1nh v\u00ec c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng \u0111\u1ea7u n\u1ed1i.<\/p><\/li>\n\n\n\n<li><p><strong>K\u1ebft n\u1ed1i c\u00e1p Ethernet<\/strong>: C\u1eafm c\u00e1p Cat5e\/Cat6\/Cat6a ph\u00f9 h\u1ee3p v\u00e0o c\u1ed5ng RJ45 c\u1ee7a m\u00f4-\u0111un. \u0110\u1ea3m b\u1ea3o c\u00e1p \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn cho t\u1ed1c \u0111\u1ed9 d\u1ef1 \u0111\u1ecbnh (1 Gbps ho\u1eb7c 10 Gbps).<\/p><\/li>\n\n\n\n<li><p><strong>X\u00e1c minh tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft<\/strong>: Ki\u1ec3m tra \u0111\u00e8n LED tr\u00ean c\u1ea3 m\u00f4-\u0111un v\u00e0 c\u1ed5ng chuy\u1ec3n m\u1ea1ch. \u0110\u00e8n s\u00e1ng c\u1ed1 \u0111\u1ecbnh ho\u1eb7c nh\u1ea5p nh\u00e1y cho bi\u1ebft li\u00ean k\u1ebft th\u00e0nh c\u00f4ng.<\/p><\/li>\n\n\n\n<li><p><strong>Ki\u1ec3m tra hi\u1ec7u su\u1ea5t<\/strong>: Th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 v\u00e0 k\u1ebft n\u1ed1i \u0111\u1ec3 x\u00e1c nh\u1eadn m\u00f4-\u0111un ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang th\u00f4ng l\u01b0\u1ee3ng d\u1ef1 ki\u1ebfn v\u00e0 t\u1ef7 l\u1ec7 m\u1ea5t g\u00f3i \u1edf m\u1ee9c t\u1ed1i thi\u1ec3u.<\/p><\/li>\n\n\n\n<li><p><strong>Gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t nhi\u1ec7t<\/strong>: <a href=\"https:\/\/www.l-p.com\/products\/476813.htm\" target=\"_self\">SFP RJ45<\/a>, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c m\u00f4-\u0111un 10GBASE-T, c\u00f3 th\u1ec3 n\u00f3ng l\u00ean. \u0110\u1ea3m b\u1ea3o lu\u1ed3ng kh\u00ed l\u01b0u th\u00f4ng t\u1ed1t trong v\u1ecf b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n RJ45 cho ph\u00e9p k\u1ebft n\u1ed1i Ethernet chu\u1ea9n qua c\u00e1p \u0111\u1ed3ng v\u1edbi c\u00e1c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 SFP.<\/p><\/li>\n\n\n\n<li><p>Lu\u00f4n ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 t\u1ed1c \u0111\u1ed9 tr\u01b0\u1edbc khi c\u00e0i \u0111\u1eb7t.<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c ch\u00e8n \u0111\u00fang c\u00e1ch, lo\u1ea1i c\u00e1p v\u00e0 qu\u1ea3n l\u00fd lu\u1ed3ng kh\u00ed l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 v\u1ec1 k\u1ebft n\u1ed1i ho\u1eb7c nhi\u1ec7t.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 SFP \u0111i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n RJ45 \u0111\u00e1ng tin c\u1eady cho c\u00e1c k\u1ebft n\u1ed1i Ethernet kho\u1ea3ng c\u00e1ch ng\u1eafn, k\u1ef9 s\u01b0 m\u1ea1ng \u0111\u00f4i khi g\u1eb7p ph\u1ea3i c\u00e1c s\u1ef1 c\u1ed1 nh\u01b0 <strong>qu\u00e1 nhi\u1ec7t, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao ho\u1eb7c l\u1ed7i k\u1ebft n\u1ed1i<\/strong>. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u00e0 gi\u1ea3i ph\u00e1p t\u01b0\u01a1ng \u1ee9ng gi\u00fap duy tr\u00ec hi\u1ec7u su\u1ea5t m\u1ea1ng \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a0f4b4b3045f4f4090ec71c9722b7325.jpg\" alt=\"Troubleshooting Electrical SFP Issues\" class=\"wp-image-2646\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a0f4b4b3045f4f4090ec71c9722b7325.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a0f4b4b3045f4f4090ec71c9722b7325-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a0f4b4b3045f4f4090ec71c9722b7325-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a0f4b4b3045f4f4090ec71c9722b7325-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a0f4b4b3045f4f4090ec71c9722b7325-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao SFP RJ45 ch\u1ea1y n\u00f3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP RJ45 t\u1ed1c \u0111\u1ed9 cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476813.htm\">\u0110\u1ed3ng 10G<\/a> , c\u00f3 th\u1ec3 sinh nhi\u1ec7t \u0111\u00e1ng k\u1ec3 do ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u0103ng. C\u00e1c y\u1ebfu t\u1ed1 g\u00f3p ph\u1ea7n l\u00e0m nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Th\u00f4ng l\u01b0\u1ee3ng d\u1eef li\u1ec7u cao<\/strong>: Ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c g\u1ea7n c\u00f4ng su\u1ea5t t\u1ed1i \u0111a l\u00e0m t\u0103ng m\u1ee9c ti\u00eau t\u00e1n \u0111i\u1ec7n n\u0103ng.<\/p><\/li>\n\n\n\n<li><p><strong>L\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed kh\u00f4ng \u0111\u1ee7<\/strong>: C\u00e1c t\u1ee7 ch\u1ee9a th\u00f4ng gi\u00f3 k\u00e9m ho\u1eb7c c\u00e1c switch \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t qu\u00e1 d\u00e0y \u0111\u1eb7c s\u1ebd gi\u1eef nhi\u1ec7t.<\/p><\/li>\n\n\n\n<li><p><strong>Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng<\/strong>: V\u1eadn h\u00e0nh thi\u1ebft b\u1ecb trong m\u00f4i tr\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n khuy\u1ebfn ngh\u1ecb (th\u01b0\u1eddng l\u00e0 0\u201340\u00b0C) c\u00f3 th\u1ec3 l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam hi\u1ec7n t\u01b0\u1ee3ng n\u00f3ng l\u00ean.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u<\/strong>: \u0110\u1ea3m b\u1ea3o kho\u1ea3ng c\u00e1ch ph\u00f9 h\u1ee3p gi\u1eefa c\u00e1c m\u00f4-\u0111un, s\u1eed d\u1ee5ng qu\u1ea1t g\u1eafn rack ho\u1eb7c \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, v\u00e0 tr\u00e1nh v\u1eadn h\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u01b0\u1ee3t m\u1ee9c khuy\u1ebfn ngh\u1ecb. Gi\u00e1m s\u00e1t \u0111\u1ecbnh k\u1ef3 c\u00e1c ch\u1ec9 b\u00e1o nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u00f4-\u0111un gi\u00fap ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng gi\u1ea3m hi\u1ec7u su\u1ea5t do nhi\u1ec7t ho\u1eb7c t\u1eaft m\u00e1y t\u1ef1 \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n c\u00e1c m\u00f4-\u0111un SFP quang, \u0111\u1eb7c bi\u1ec7t \u1edf t\u1ed1c \u0111\u1ed9 cao:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>M\u00f4-\u0111un 1GBASE-T<\/strong>: Kho\u1ea3ng 0,5\u20131,5 W m\u1ed7i c\u1ed5ng.<\/p><\/li>\n\n\n\n<li><p><strong>M\u00f4-\u0111un 10GBASE-T<\/strong>: Kho\u1ea3ng 2,5\u20134,5 W m\u1ed7i c\u1ed5ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 g\u00e2y \u00e1p l\u1ef1c l\u00ean ngu\u1ed3n \u0111i\u1ec7n n\u1ed9i b\u1ed9 c\u1ee7a switch, d\u1eabn \u0111\u1ebfn nguy c\u01a1 v\u00f4 hi\u1ec7u h\u00f3a c\u1ed5ng ho\u1eb7c suy gi\u1ea3m hi\u1ec7u su\u1ea5t. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 c\u1ed1, h\u00e3y x\u00e1c minh r\u1eb1ng switch h\u1ed7 tr\u1ee3 ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t t\u1ed5ng cho t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP \u0111\u00e3 l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i ph\u1ed5 bi\u1ebfn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u1ebft n\u1ed1i ho\u1eb7c hi\u1ec7u su\u1ea5t v\u1edbi c\u00e1c m\u00f4-\u0111un SFP RJ45:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>L\u1ed7i li\u00ean k\u1ebft ho\u1eb7c l\u1ed7i th\u01b0\u01a1ng l\u01b0\u1ee3ng<\/strong>: Th\u01b0\u1eddng do c\u00e1p kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m. \u0110\u1ea3m b\u1ea3o c\u00e1p \u0111\u00e1p \u1ee9ng \u0111\u00fang lo\u1ea1i y\u00eau c\u1ea7u (Cat5e\/Cat6 cho 1G, Cat6a\/Cat7 cho 10G).<\/p><\/li>\n\n\n\n<li><p><strong>M\u1ea5t g\u00f3i ho\u1eb7c \u0111\u1ed9 tr\u1ec5 cao<\/strong>: C\u00f3 th\u1ec3 x\u1ea3y ra n\u1ebfu kho\u1ea3ng c\u00e1ch m\u00f4-\u0111un v\u01b0\u1ee3t qu\u00e1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, c\u00e1p b\u1ecb h\u01b0 h\u1ecfng ho\u1eb7c trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) cao.<\/p><\/li>\n\n\n\n<li><p><strong>V\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p<\/strong>: M\u1ed9t s\u1ed1 c\u00f4ng t\u1eafc y\u00eau c\u1ea7u c\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p ch\u1ee9ng nh\u1eadn \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea7y \u0111\u1ee7. Vi\u1ec7c s\u1eed d\u1ee5ng <a href=\"https:\/\/www.l-p.com\/products\/476807.htm\" target=\"_self\">c\u00e1c m\u00f4-\u0111un b\u00ean th\u1ee9 ba<br><\/a> c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t l\u1ed7i ho\u1eb7c l\u00e0m gi\u1ea3m th\u00f4ng l\u01b0\u1ee3ng.<\/p><\/li>\n\n\n\n<li><p><strong>L\u1ed7i c\u1ed5ng ho\u1eb7c hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y c\u1ed5ng<\/strong>: Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, gi\u1edbi h\u1ea1n c\u00f4ng su\u1ea5t ho\u1eb7c thi\u1ebft l\u1eadp sai t\u1ed1c \u0111\u1ed9\/ch\u1ebf \u0111\u1ed9 song c\u00f4ng c\u00f3 th\u1ec3 khi\u1ebfn c\u1ed5ng li\u00ean t\u1ee5c b\u1eadt\/t\u1eaft.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Lu\u00f4n ki\u1ec3m tra t\u00e0i li\u1ec7u c\u1ee7a module v\u00e0 switch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch c\u0169ng nh\u01b0 c\u00e1c c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb.<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra t\u1eebng k\u1ebft n\u1ed1i b\u1eb1ng c\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn tr\u01b0\u1edbc khi tri\u1ec3n khai \u0111\u1ea7y \u0111\u1ee7.<\/p><\/li>\n\n\n\n<li><p>Gi\u00e1m s\u00e1t nh\u1eadt k\u00fd switch v\u00e0 b\u1ed9 \u0111\u1ebfm giao di\u1ec7n \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i s\u1edbm.<\/p><\/li>\n\n\n\n<li><p>Duy tr\u00ec h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t v\u00e0 l\u01b0u th\u00f4ng kh\u00ed ph\u00f9 h\u1ee3p nh\u1eb1m tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 m\u1ea5t k\u1ebft n\u1ed1i do nhi\u1ec7t.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0T\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 h\u1ed7 tr\u1ee3 nh\u00e0 cung c\u1ea5p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea3m b\u1ea3o c\u00e1c module SFP \u0111i\u1ec7n c\u1ee7a b\u1ea1n t\u01b0\u01a1ng th\u00edch v\u1edbi thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 duy tr\u00ec k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh, hi\u1ec7u n\u0103ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 tu\u00e2n th\u1ee7 \u0111i\u1ec1u kho\u1ea3n b\u1ea3o h\u00e0nh. Ph\u1ea7n n\u00e0y n\u00eau b\u1eadt c\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc \u0111\u1ed1i v\u1edbi c\u00e1c module SFP \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p ph\u00ea duy\u1ec7t v\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476772.htm\"> SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a> v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0e6132c1bf7b4608bb0c3f18a74f97aa-1024x576.jpg\" alt=\"Compatibility and Vendor Support\" class=\"wp-image-2647\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0e6132c1bf7b4608bb0c3f18a74f97aa-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0e6132c1bf7b4608bb0c3f18a74f97aa-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0e6132c1bf7b4608bb0c3f18a74f97aa-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0e6132c1bf7b4608bb0c3f18a74f97aa-18x10.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0e6132c1bf7b4608bb0c3f18a74f97aa.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SFP t\u01b0\u01a1ng th\u00edch Cisco<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u m\u1ea1ng doanh nghi\u1ec7p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c switch v\u00e0 router Cisco, v\u1ed1n th\u01b0\u1eddng y\u00eau c\u1ea7u c\u00e1c module SFP \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p ch\u1ee9ng nh\u1eadn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ee9c n\u0103ng \u0111\u1ea7y \u0111\u1ee7. C\u00e1c module SFP \u0111i\u1ec7n t\u01b0\u01a1ng th\u00edch Cisco \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n do nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1eb7t ra v\u1ec1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng<\/strong> t\u1ed1c \u0111\u1ed9 v\u00e0 ch\u1ebf \u0111\u1ed9 song c\u00f4ng.<\/p><\/li>\n\n\n\n<li><p><strong>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh k\u1ebft n\u1ed1i<\/strong> v\u00e0 b\u00e1o c\u00e1o l\u1ed7i tr\u00ean c\u00e1c thi\u1ebft b\u1ecb Cisco.<\/p><\/li>\n\n\n\n<li><p><strong>Gi\u1edbi h\u1ea1n c\u00f4ng su\u1ea5t v\u00e0 nhi\u1ec7t<\/strong> nh\u1eb1m tr\u00e1nh k\u00edch ho\u1ea1t t\u00ecnh tr\u1ea1ng t\u1eaft c\u1ed5ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c module kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn tr\u00ean thi\u1ebft b\u1ecb Cisco c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u1ed7i c\u1ed5ng ho\u1eb7c hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y k\u1ebft n\u1ed1i.<\/p><\/li>\n\n\n\n<li><p>Th\u00f4ng l\u01b0\u1ee3ng gi\u1ea3m ho\u1eb7c m\u1ea5t ch\u1ee9c n\u0103ng t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9.<\/p><\/li>\n\n\n\n<li><p>Nguy c\u01a1 v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c th\u1ecfa thu\u1eadn h\u1ed7 tr\u1ee3 ph\u1ea7n c\u1ee9ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP c\u1ee7a b\u00ean th\u1ee9 ba ho\u1eb7c \u0111a nh\u00e0 cung c\u1ea5p mang l\u1ea1i gi\u1ea3i ph\u00e1p thay th\u1ebf ti\u1ebft ki\u1ec7m chi ph\u00ed, \u0111\u1eb7c bi\u1ec7t cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ed9 tin c\u1eady cao. C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc khi s\u1eed d\u1ee5ng module SFP c\u1ee7a b\u00ean th\u1ee9 ba bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Tu\u00e2n th\u1ee7 MSA<\/strong>: \u0110\u1ea3m b\u1ea3o module tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n Th\u1ecfa thu\u1eadn Ngu\u1ed3n \u0110a SFP (SFP Multi-Source Agreement \u2013 MSA) \u0111\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c c\u01a1 b\u1ea3n.<\/p><\/li>\n\n\n\n<li><p><strong>Ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng<\/strong>: Mua t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p uy t\u00edn c\u00f3 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng v\u1ec1 t\u1ed1c \u0111\u1ed9, m\u1ee9c ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t v\u00e0 kho\u1ea3ng c\u00e1ch c\u00e1p t\u1ed1i \u0111a.<\/p><\/li>\n\n\n\n<li><p><strong>Ki\u1ec3m th\u1eed t\u00ednh t\u01b0\u01a1ng th\u00edch<\/strong>: Ti\u1ebfn h\u00e0nh ki\u1ec3m tra tr\u01b0\u1edbc khi tri\u1ec3n khai \u0111\u1ec3 x\u00e1c minh hi\u1ec7u n\u0103ng tr\u00ean c\u00e1c switch v\u00e0 router m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c module SFP c\u1ee7a b\u00ean th\u1ee9 ba gi\u00fap gi\u1ea3m chi ph\u00ed, k\u1ef9 s\u01b0 m\u1ea1ng n\u00ean c\u00e2n nh\u1eafc gi\u1eefa l\u1ee3i \u00edch ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 c\u00e1c r\u1ee7i ro ti\u1ec1m \u1ea9n v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p n\u01a1i \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eb9o th\u1ef1c t\u1ebf khi s\u1eed d\u1ee5ng SFP \u0111i\u1ec7n c\u1ee7a b\u00ean th\u1ee9 ba<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>C\u00e2n nh\u1eafc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Ph\u00ea duy\u1ec7t<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u01b0\u01a1ng th\u00edch<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1eed nghi\u1ec7m tr\u01b0\u1edbc trong ph\u00f2ng lab, ki\u1ec3m tra t\u00e0i li\u1ec7u nh\u00e0 cung c\u1ea5p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>B\u1ea3o h\u00e0nh<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>X\u00e1c minh ch\u00ednh s\u00e1ch c\u1ee7a nh\u00e0 cung c\u1ea5p switch v\u1ec1 module c\u1ee7a b\u00ean th\u1ee9 ba<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t\/Nhi\u1ec7t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 module trong c\u00e1c t\u1ee7 rack m\u1eadt \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ea3m b\u1ea3o \u0111\u1ea1t ch\u1ee9ng nh\u1eadn IEEE 802.3<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y, k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 tri\u1ec3n khai an to\u00e0n c\u00e1c module SFP \u0111i\u1ec7n \u2014 b\u1ea5t k\u1ec3 \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p ph\u00ea duy\u1ec7t hay c\u1ee7a b\u00ean th\u1ee9 ba \u2014 nh\u1eb1m gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 r\u1ee7i ro hi\u1ec7u n\u0103ng.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 SFP \u0111i\u1ec7n<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5605cb4ee93f4d1fa9090f9154b5e7c7.jpg\" alt=\"Frequently Asked Questions About Electrical SFP\" class=\"wp-image-2648\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5605cb4ee93f4d1fa9090f9154b5e7c7.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5605cb4ee93f4d1fa9090f9154b5e7c7-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5605cb4ee93f4d1fa9090f9154b5e7c7-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5605cb4ee93f4d1fa9090f9154b5e7c7-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5605cb4ee93f4d1fa9090f9154b5e7c7-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C1: Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a c\u1ee7a SFP \u0111i\u1ec7n l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u1ea3 l\u1eddi:<\/strong><br>C\u00e1c module SFP \u0111i\u1ec7n, th\u01b0\u1eddng s\u1eed d\u1ee5ng chu\u1ea9n 1000BASE-T tr\u00ean c\u00e1p \u0111\u1ed3ng, h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a l\u00ean \u0111\u1ebfn 100 m\u00e9t v\u1edbi c\u00e1p Cat5e, Cat6 ho\u1eb7c Cat6a. V\u01b0\u1ee3t qu\u00e1 kho\u1ea3ng c\u00e1ch n\u00e0y, ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u suy gi\u1ea3m, khi\u1ebfn SFP s\u1ee3i quang tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p \u01b0u ti\u00ean cho c\u00e1c k\u1ebft n\u1ed1i d\u00e0i h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C2: SFP \u0111\u1ed3ng c\u00f3 ch\u1eadm h\u01a1n SFP s\u1ee3i quang kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u1ea3 l\u1eddi:<\/strong><br>For <strong>s<\/strong>V\u1edbi chu\u1ea9n Gigabit Ethernet ti\u00eau chu\u1ea9n (1 Gbps), c\u1ea3 SFP \u0111\u1ed3ng (SFP \u0111i\u1ec7n) v\u00e0 SFP s\u1ee3i quang \u0111\u1ec1u cung c\u1ea5p t\u1ed1c \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. Tuy nhi\u00ean, c\u00e1c module SFP s\u1ee3i quang h\u1ed7 tr\u1ee3 c\u00e1c chu\u1ea9n t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\">25G<\/a>, and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">Y\u00eau c\u1ea7u c\u00e1p s\u1ee3i quang v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n, nh\u01b0ng m\u1edf r\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n cho s\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1ng trong t\u01b0\u01a1ng lai.<\/a>, trong khi c\u00e1c module SFP \u0111\u1ed3ng th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n \u1edf m\u1ee9c 1 Gbps ho\u1eb7c 10GBASE-T, t\u00f9y thu\u1ed9c v\u00e0o PHY v\u00e0 lo\u1ea1i c\u00e1p s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C3: SFP \u0111i\u1ec7n c\u00f3 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 10G kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u1ea3 l\u1eddi:<\/strong><br>Ch\u1ec9 m\u1ed9t s\u1ed1 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476781.htm\">SFP+ 10GBASE-T<\/a> Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<strong>s<\/strong> nh\u1ea5t \u0111\u1ecbnh m\u1edbi c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 chu\u1ea9n Ethernet 10 Gigabit tr\u00ean c\u00e1p \u0111\u1ed3ng. C\u00e1c module n\u00e0y ti\u00eau th\u1ee5 nhi\u1ec1u c\u00f4ng su\u1ea5t h\u01a1n v\u00e0 sinh nhi\u1ec7t nhi\u1ec1u h\u01a1n so v\u1edbi c\u00e1c module SFP s\u1ee3i quang, \u0111\u1ed3ng th\u1eddi th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n \u1edf kho\u1ea3ng c\u00e1ch 30\u2013100 m\u00e9t t\u00f9y theo ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C4: SFP RJ45 c\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1ecdi switch kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u1ea3 l\u1eddi:<\/strong><br>C\u00e1c module SFP \u0111i\u1ec7n n\u00f3i chung t\u01b0\u01a1ng th\u00edch v\u1edbi h\u1ea7u h\u1ebft c\u00e1c switch h\u1ed7 tr\u1ee3 khe SFP. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p (v\u00ed d\u1ee5: Cisco, HP, Juniper) c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00e1c module \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p ph\u00ea duy\u1ec7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u1ea7y \u0111\u1ee7. Lu\u00f4n ki\u1ec3m tra danh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a switch tr\u01b0\u1edbc khi tri\u1ec3n khai c\u00e1c module SFP c\u1ee7a b\u00ean th\u1ee9 ba.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C5: Lo\u1ea1i n\u00e0o ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n: SFP \u0111\u1ed3ng hay SFP s\u1ee3i quang?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u1ea3 l\u1eddi:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch ng\u1eafn (&lt;100 m\u00e9t):<\/strong> C\u00e1c module SFP \u0111\u1ed3ng th\u01b0\u1eddng ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n v\u00ec t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c h\u1ea1 t\u1ea7ng c\u00e1p \u0111\u1ed3ng hi\u1ec7n c\u00f3 v\u00e0 kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t c\u00e1p s\u1ee3i quang.<\/p><\/li>\n\n\n\n<li><p><strong>Tri\u1ec3n khai kho\u1ea3ng c\u00e1ch d\u00e0i ho\u1eb7c t\u1ed1c \u0111\u1ed9 cao:<\/strong> C\u00e1c module SFP s\u1ee3i quang mang l\u1ea1i kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ed1t h\u01a1n v\u1ec1 l\u00e2u d\u00e0i, \u0111\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n v\u00e0 ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t \u00edt h\u01a1n, do \u0111\u00f3 hi\u1ec7u qu\u1ea3 chi ph\u00ed cao h\u01a1n theo th\u1eddi gian.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C6. C\u00f3 th\u1ec3 c\u1eafm tr\u1ef1c ti\u1ebfp c\u00e1p Ethernet v\u00e0o c\u1ed5ng SFP kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u1ea3 l\u1eddi: <\/strong>M\u1ed9t c\u00e1p Ethernet ti\u00eau chu\u1ea9n kh\u00f4ng th\u1ec3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi c\u1ed5ng SFP.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t <strong>M\u00f4-\u0111un SFP RJ45<\/strong> \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, cho ph\u00e9p c\u00e1p Cat5e\/Cat6\/Cat6a k\u1ebft n\u1ed1i v\u1edbi c\u1ed5ng SFP tr\u00ean switch ho\u1eb7c router.<\/p><\/li>\n\n\n\n<li><p>\u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u00edch h\u1ee3p m\u1ea1ng Ethernet \u0111\u1ed3ng v\u1edbi c\u00e1c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 SFP.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u21aa\ufe0f\u00a0G\u1ee3i \u00fd l\u1ef1a ch\u1ecdn Transceiver SFP \u0111i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn transceiver SFP \u0111i\u1ec7n ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh m\u1ea1ng, th\u00f4ng l\u01b0\u1ee3ng t\u1ed1i \u01b0u v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed. M\u1eb7c d\u00f9 l\u1ef1a ch\u1ecdn ph\u1ee5 thu\u1ed9c v\u00e0o m\u00f4i tr\u01b0\u1eddng c\u1ee5 th\u1ec3, h\u1ea1 t\u1ea7ng c\u00e1p v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi switch, nh\u01b0ng c\u00e1c g\u1ee3i \u00fd sau \u0111\u00e2y gi\u1edbi thi\u1ec7u nh\u1eefng module \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/758cdce523174bcfbefd0c15c68a252f.jpg\" alt=\"Electrical SFP Transceiver Recommendations\" class=\"wp-image-2649\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/758cdce523174bcfbefd0c15c68a252f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/758cdce523174bcfbefd0c15c68a252f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/758cdce523174bcfbefd0c15c68a252f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/758cdce523174bcfbefd0c15c68a252f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/758cdce523174bcfbefd0c15c68a252f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SFP RJ45 1G c\u1ee7a Cisco (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476771.htm\">GLC-T<\/a>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u1ed1c \u0111\u1ed9<\/strong>: 1 Gbps (1000BASE-T)<\/p><\/li>\n\n\n\n<li><p><strong>Kho\u1ea3ng c\u00e1ch<\/strong>: L\u00ean \u0111\u1ebfn 100 m\u00e9t tr\u00ean c\u00e1p Cat5e\/Cat6<\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/strong>: Kho\u1ea3ng 0,5\u20131 W m\u1ed7i c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch<\/strong>: \u0110\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn d\u00e0nh ri\u00eang cho switch v\u00e0 router Cisco<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt<\/strong>: H\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA, v\u1eadn h\u00e0nh v\u1edbi \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/p><\/li>\n\n\n\n<li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u<\/strong>: K\u1ebft n\u1ed1i \u0111\u1ed3ng ng\u1eafn \u0111\u1ebfn trung b\u00ecnh trong c\u00e1c m\u1ea1ng do Cisco qu\u1ea3n l\u00fd, n\u01a1i ch\u1ee9ng nh\u1eadn c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u1ea3m b\u1ea3o h\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 v\u00e0 hi\u1ec7u n\u0103ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">SFP+ RJ45 10G c\u1ee7a Cisco (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482687.htm\">SFP-10G-T-X<br><\/a>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u1ed1c \u0111\u1ed9<\/strong>: 10 Gbps (10GBASE-T)<\/p><\/li>\n\n\n\n<li><p><strong>Kho\u1ea3ng c\u00e1ch<\/strong>: 30\u201355 m\u00e9t tr\u00ean c\u00e1p Cat6a\/Cat7<\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/strong>: 2,5\u20134,5 W m\u1ed7i c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch<\/strong>: H\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 tr\u00ean c\u00e1c c\u1ed5ng SFP+ c\u1ee7a Cisco<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt<\/strong>: K\u1ebft n\u1ed1i \u0111\u1ed3ng t\u1ed1c \u0111\u1ed9 cao m\u00e0 kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t c\u00e1p quang, h\u1ed7 tr\u1ee3 t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9<\/p><\/li>\n\n\n\n<li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u<\/strong>: C\u00e1c li\u00ean k\u1ebft 10G t\u1ea7m ng\u1eafn trong trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c c\u00e1c l\u1edbp t\u1eadp h\u1ee3p m\u1ea1ng, n\u01a1i vi\u1ec7c tri\u1ec3n khai c\u00e1p quang kh\u00f4ng kh\u1ea3 thi.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4-\u0111un SFP \u0111\u1ed3ng 1G\/10G c\u1ee7a Finisar (FNS-1000BASE-T \/ FNS-10GBASE-T)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u1ed1c \u0111\u1ed9<\/strong>: 1 Gbps ho\u1eb7c 10 Gbps t\u00f9y theo m\u1eabu<\/p><\/li>\n\n\n\n<li><p><strong>Kho\u1ea3ng c\u00e1ch<\/strong>: 100 m\u00e9t (1G), 30\u201350 m\u00e9t (10G)<\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/strong>: 1\u20134 W m\u1ed7i c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch<\/strong>: H\u1ed7 tr\u1ee3 \u0111a nh\u00e0 cung c\u1ea5p; tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt<\/strong>: Chi ph\u00ed th\u1ea5p h\u01a1n c\u00e1c m\u00f4-\u0111un chuy\u00ean bi\u1ec7t theo nh\u00e0 cung c\u1ea5p, \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn b\u1edfi nhi\u1ec1u lo\u1ea1i c\u00f4ng t\u1eafc doanh nghi\u1ec7p<\/p><\/li>\n\n\n\n<li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u<\/strong>: C\u00e1c m\u1ea1ng \u0111a nh\u00e0 cung c\u1ea5p y\u00eau c\u1ea7u m\u00f4-\u0111un SFP \u0111\u1ed3ng chi ph\u00ed hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady, v\u1edbi r\u1ee7i ro t\u01b0\u01a1ng th\u00edch t\u1ed1i thi\u1ec3u.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4-\u0111un SFP \u0111\u1ed3ng 1G\/10G c\u1ee7a HPE<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u1ed1c \u0111\u1ed9<\/strong>: 1 Gbps ho\u1eb7c 10 Gbps<\/p><\/li>\n\n\n\n<li><p><strong>Kho\u1ea3ng c\u00e1ch<\/strong>: Gi\u1edbi h\u1ea1n chu\u1ea9n Ethernet theo t\u1eebng lo\u1ea1i c\u00e1p<\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/strong>: T\u01b0\u01a1ng t\u1ef1 c\u00e1c m\u00f4-\u0111un c\u1ee7a Cisco v\u00e0 Finisar<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch<\/strong>: \u0110\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn cho c\u00f4ng t\u1eafc HPE, m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng t\u01b0\u01a1ng th\u00edch ch\u00e9o nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt<\/strong>: Thi\u1ebft k\u1ebf \u0111\u1ec3 t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi thi\u1ebft b\u1ecb m\u1ea1ng HPE, qu\u1ea3n l\u00fd nhi\u1ec7t v\u00e0 \u0111i\u1ec7n n\u0103ng m\u1ea1nh m\u1ebd<\/p><\/li>\n\n\n\n<li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u<\/strong>: Tri\u1ec3n khai doanh nghi\u1ec7p HPE c\u1ea7n h\u1ed7 tr\u1ee3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c v\u00e0 gi\u00e1m s\u00e1t t\u00edch h\u1ee3p.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1m ph\u00e1 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a><strong> d\u00e0nh cho c\u00e1c m\u00f4-\u0111un SFP \u0111i\u1ec7n<\/strong> v\u1edbi <strong>k\u1ebft n\u1ed1i \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u n\u0103ng cao<\/strong> trong m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u01b0\u1edbng d\u1eabn khuy\u1ebfn ngh\u1ecb<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Ph\u00f9 h\u1ee3p t\u1ed1c \u0111\u1ed9 m\u00f4-\u0111un v\u1edbi h\u1ec7 th\u1ed1ng c\u00e1p<\/strong>: \u0110\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 m\u00f4-\u0111un ph\u00f9 h\u1ee3p v\u1edbi x\u1ebfp h\u1ea1ng c\u00e1p (Cat5e\/Cat6 cho 1G, Cat6a\/Cat7 cho 10G).<\/p><\/li>\n\n\n\n<li><p><strong>Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi nh\u00e0 cung c\u1ea5p<\/strong>: C\u00e1c m\u00f4-\u0111un \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn gi\u00fap gi\u1ea3m r\u1ee7i ro l\u1ed7i li\u00ean k\u1ebft, hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y c\u1ed5ng ho\u1eb7c c\u00e1c t\u00ednh n\u0103ng kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e2n nh\u1eafc qu\u1ea3n l\u00fd nhi\u1ec7t<\/strong>: C\u00e1c m\u00f4-\u0111un t\u1ed1c \u0111\u1ed9 cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 10G, \u0111\u00f2i h\u1ecfi lu\u1ed3ng kh\u00ed v\u00e0 l\u00e0m m\u00e1t \u0111\u1ea7y \u0111\u1ee7 trong m\u00f4i tr\u01b0\u1eddng t\u1ee7 rack d\u00e0y \u0111\u1eb7c.<\/p><\/li>\n\n\n\n<li><p><strong>Nh\u1eadn th\u1ee9c v\u1ec1 ng\u00e2n s\u00e1ch \u0111i\u1ec7n n\u0103ng<\/strong>: X\u00e1c minh t\u1ed5ng m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP \u0111\u00e3 l\u1eafp \u0111\u1eb7t kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 c\u00f4ng su\u1ea5t \u0111i\u1ec7n c\u1ee7a c\u00f4ng t\u1eafc.<\/p><\/li>\n\n\n\n<li><p><strong>Kh\u1ea3 n\u0103ng c\u1eadp nh\u1eadt trong t\u01b0\u01a1ng lai<\/strong>: Khi c\u00f3 th\u1ec3, h\u00e3y ch\u1ecdn c\u00e1c m\u00f4-\u0111un SFP h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng \u0111a t\u1ed1c \u0111\u1ed9 (t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng 1G\/10G) \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u m\u1edf r\u1ed9ng m\u1ea1ng trong t\u01b0\u01a1ng lai.<\/p><\/li>\n\n\n\n<li><p><strong>Chi ph\u00ed so v\u1edbi \u0111\u1ed9 tin c\u1eady<\/strong>: C\u00e1c m\u00f4-\u0111un b\u00ean th\u1ee9 ba c\u00f3 th\u1ec3 gi\u1ea3m chi ph\u00ed nh\u01b0ng lu\u00f4n ki\u1ec3m \u0111\u1ecbnh hi\u1ec7u n\u0103ng v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u1ec3 tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 m\u1ea1ng ti\u1ec1m \u1ea9n.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c khuy\u1ebfn ngh\u1ecb n\u00e0y v\u00e0 l\u1ef1a ch\u1ecdn m\u00f4-\u0111un d\u1ef1a tr\u00ean y\u00eau c\u1ea7u m\u1ea1ng, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p v\u00e0 ch\u1ee9ng nh\u1eadn c\u1ee7a nh\u00e0 cung c\u1ea5p, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u n\u0103ng, \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed, \u0111\u1ed3ng th\u1eddi duy tr\u00ec kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho c\u00e1c n\u00e2ng c\u1ea5p trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u t\u1ea5t c\u1ea3 v\u1ec1 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i SFP \u0111i\u1ec7n, bao g\u1ed3m \u0111\u1ecbnh ngh\u0129a, so s\u00e1nh v\u1edbi SFP quang, c\u00e1ch s\u1eed d\u1ee5ng, kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch.<\/p>","protected":false},"author":1,"featured_media":2650,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[20],"class_list":["post-2651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-rj45-copper-sfp"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2651","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=2651"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2651\/revisions"}],"predecessor-version":[{"id":10748,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2651\/revisions\/10748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2650"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}