{"id":2503,"date":"2026-04-11T00:00:00","date_gmt":"2026-04-11T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/10-100-1000base-t-sfp-rj45-copper-module-guide\/"},"modified":"2026-06-22T03:34:56","modified_gmt":"2026-06-22T03:34:56","slug":"10-100-1000base-t-sfp-rj45-copper-module-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/10-100-1000base-t-sfp-rj45-copper-module-guide","title":{"rendered":"Gi\u1ea3i th\u00edch 10\/100\/1000BASE-T SFP: H\u01b0\u1edbng d\u1eabn v\u1ec1 m\u00f4-\u0111un \u0111\u1ed3ng tr\u1ee5c RJ45"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03739fe5f6b24ce2a2488e024b303145.jpg\" alt=\"10\/100\/1000BASE-T SFP Explained: RJ45 Copper Module Guide\" class=\"wp-image-2493\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03739fe5f6b24ce2a2488e024b303145.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03739fe5f6b24ce2a2488e024b303145-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03739fe5f6b24ce2a2488e024b303145-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03739fe5f6b24ce2a2488e024b303145-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03739fe5f6b24ce2a2488e024b303145-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">SFP 10\/100\/1000BASE-T<\/a> (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">Fiber optic links are better for long-distance or EMI-sensitive environments<\/a> ho\u1eb7c m\u00f4-\u0111un SFP-T) \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t kh\u1ed1i x\u00e2y d\u1ef1ng thi\u1ebft y\u1ebfu trong m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng y\u00eau c\u1ea7u t\u00ednh linh ho\u1ea1t, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng h\u1ed7n h\u1ee3p v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed. N\u00f3 cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng chuy\u1ec3n \u0111\u1ed5i c\u1ed5ng SFP th\u00e0nh giao di\u1ec7n Ethernet RJ45 ti\u00eau chu\u1ea9n, h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 t\u1eeb 10 Mbps \u0111\u1ebfn 1 Gbps tr\u00ean c\u00e1p \u0111\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, m\u00f4-\u0111un n\u00e0y th\u01b0\u1eddng b\u1ecb hi\u1ec3u sai. Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng gi\u1ea3 \u0111\u1ecbnh \u0111\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t \u201cb\u1ed9 chuy\u1ec3n \u0111\u1ed5i\u201d \u0111\u01a1n gi\u1ea3n gi\u1eefa khe c\u1eafm SFP s\u1ee3i quang v\u00e0 c\u1ed5ng RJ45. Tr\u00ean th\u1ef1c t\u1ebf, m\u00f4-\u0111un SFP 1000BASE-T l\u00e0 m\u1ed9t b\u1ed9 thu ph\u00e1t ch\u1ee7 \u0111\u1ed9ng t\u00edch h\u1ee3p \u0111\u1ea7y \u0111\u1ee7, ch\u1ee9a chip PHY Ethernet chuy\u00ean d\u1ee5ng ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd t\u00edn hi\u1ec7u, th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng v\u00e0 chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n. \u0110\u1ed9 ph\u1ee9c t\u1ea1p n\u1ed9i t\u1ea1i n\u00e0y ch\u00ednh l\u00e0 y\u1ebfu t\u1ed1 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng Cat5e\/Cat6 ti\u00eau chu\u1ea9n\u2014nh\u01b0ng \u0111\u1ed3ng th\u1eddi c\u0169ng g\u00e2y ra nh\u1eefng th\u00e1ch th\u1ee9c nh\u01b0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n cao h\u01a1n, sinh nhi\u1ec7t nhi\u1ec1u h\u01a1n v\u00e0 gi\u1edbi h\u1ea1n v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng xuy\u00ean g\u1eb7p ph\u1ea3i c\u00e1c s\u1ef1 c\u1ed1 nh\u01b0 l\u1ed7i \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d, li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c m\u00f4-\u0111un qu\u00e1 n\u00f3ng, \u0111\u1eb7c bi\u1ec7t tr\u00ean c\u00e1c switch m\u1eadt \u0111\u1ed9 cao t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 Cisco, HP Aruba v\u00e0 MikroTik. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y kh\u00f4ng do b\u1ea3n th\u00e2n m\u00f4-\u0111un <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-standard-specifications-compatibility-guide\/\">ti\u00eau chu\u1ea9n SFP<\/a> g\u00e2y ra, m\u00e0 b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 kh\u00e1c bi\u1ec7t trong c\u00e1c quy t\u1eafc x\u00e1c th\u1ef1c firmware, ch\u1ea5t l\u01b0\u1ee3ng thi\u1ebft k\u1ebf chipset v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ki\u1ebfn tr\u00fac m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n h\u01b0\u1edbng t\u1edbi c\u00e1c giao di\u1ec7n quang t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\">SFP28<\/a> and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\">QSFP28<br><\/a>, vai tr\u00f2 c\u1ee7a <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476800.htm\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng<\/a> c\u0169ng \u0111ang thay \u0111\u1ed5i. Tuy nhi\u00ean, ch\u00fang v\u1eabn r\u1ea5t ph\u00f9 h\u1ee3p trong c\u00e1c m\u1ea1ng bi\u00ean, t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba v\u00e0 m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u1eeba v\u00e0 nh\u1ecf, n\u01a1i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng RJ45 v\u1eabn chi\u1ebfm \u01b0u th\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p ph\u00e2n t\u00edch to\u00e0n di\u1ec7n v\u1ec1 m\u00f4-\u0111un SFP 10\/100\/1000BASE-T <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476771.htm\">m\u00f4-\u0111un SFP<\/a>, bao g\u1ed3m c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng b\u00ean trong, l\u00fd do ph\u00e1t sinh c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch, c\u00e1ch kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p v\u00e0 th\u1eddi \u0111i\u1ec3m n\u00ean hay kh\u00f4ng n\u00ean l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p n\u00e0y cho thi\u1ebft k\u1ebf m\u1ea1ng c\u1ee7a b\u1ea1n. N\u1ed9i dung \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng nh\u1eb1m gi\u00fap k\u1ef9 s\u01b0, ng\u01b0\u1eddi mua IT v\u00e0 nh\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t d\u1ef1a tr\u00ean c\u00e1c th\u00f4ng tin th\u1ef1c ti\u1ec5n t\u1eeb tri\u1ec3n khai th\u1ef1c t\u1ebf v\u00e0 xu h\u01b0\u1edbng h\u00e0nh vi ng\u00e0nh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 M\u00f4-\u0111un SFP 10\/100\/1000BASE-T l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4-\u0111un SFP 10\/100\/1000BASE-T (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476801.htm\">SFP \u0111\u1ed3ng<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476813.htm\">SFP RJ45<\/a>, ho\u1eb7c SFP-T) l\u00e0 m\u1ed9t b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng, cho ph\u00e9p k\u1ebft n\u1ed1i Ethernet RJ45 th\u00f4ng qua khe c\u1eafm SFP tr\u00ean switch, router ho\u1eb7c thi\u1ebft b\u1ecb truy\u1ec1n d\u1eabn. N\u00f3 cho ph\u00e9p c\u00e1c c\u1ed5ng SFP ch\u1ec9 h\u1ed7 tr\u1ee3 s\u1ee3i quang h\u1ed7 tr\u1ee3 c\u00e1p \u0111\u1ed3ng xo\u1eafn \u0111\u00f4i ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i th\u1ee5 \u0111\u1ed9ng, \u0111\u00e2y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ch\u1ee7 \u0111\u1ed9ng c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd t\u00edn hi\u1ec7u \u0111\u1ea7y \u0111\u1ee7, do \u0111\u00f3 ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u so v\u1edbi m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i giao di\u1ec7n \u0111\u01a1n gi\u1ea3n.<\/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\/eaae3f34c76c4c2ab336503eb87b0b7e.jpg\" alt=\"What Is a 10\/100\/1000BASE-T SFP Module?\" class=\"wp-image-2494\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eaae3f34c76c4c2ab336503eb87b0b7e.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eaae3f34c76c4c2ab336503eb87b0b7e-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eaae3f34c76c4c2ab336503eb87b0b7e-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eaae3f34c76c4c2ab336503eb87b0b7e-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/eaae3f34c76c4c2ab336503eb87b0b7e-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecbnh ngh\u0129a v\u1ec1 SFP \u0111\u1ed3ng (SFP-T)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SFP \u0111\u1ed3ng (SFP-T) l\u00e0 m\u1ed9t b\u1ed9 thu ph\u00e1t Ethernet chuy\u1ec3n \u0111\u1ed5i giao di\u1ec7n <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-an-sfp-interface\/\">SFP<\/a> th\u00e0nh c\u1ed5ng RJ45 \u0111\u1ec3 truy\u1ec1n th\u00f4ng qua c\u00e1p <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/cat5e-vs-cat6-vs-cat6a-for-copper-sfp\/\">Cat5e\/Cat6\/Cat6a<\/a> .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ednh n\u0103ng ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ed7 tr\u1ee3 Ethernet 10\/100\/1000 Mbps<\/p><\/li>\n\n\n\n<li><p>Giao di\u1ec7n k\u1ebft n\u1ed1i RJ45<\/p><\/li>\n\n\n\n<li><p>Ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1p \u0111\u1ed3ng xo\u1eafn \u0111\u00f4i ti\u00eau chu\u1ea9n<\/p><\/li>\n\n\n\n<li><p>C\u1eafm v\u00e0o l\u00e0 s\u1eed d\u1ee5ng ngay (plug-and-play) <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-test-sfp-compatibility\/\" target=\"_blank\" rel=\"\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a><\/p><\/li>\n\n\n\n<li><p>Ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec3n h\u00ecnh l\u00ean \u0111\u1ebfn 100 m\u00e9t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t c\u1ea7u n\u1ed1i th\u1ef1c ti\u1ec5n gi\u1eefa ph\u1ea7n c\u1ee9ng chuy\u1ec3n m\u1ea1ch d\u1ef1a tr\u00ean s\u1ee3i quang v\u00e0 m\u1ea1ng Ethernet \u0111\u1ed3ng k\u1ebf th\u1eeba, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng h\u1ed7n h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chip PHY t\u00edch h\u1ee3p (Th\u00f4ng tin k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a m\u00f4-\u0111un SFP 1000BASE-T l\u00e0 chip <a target=\"_self\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-phy-physical-layer-basics-explained\/\">PHY Ethernet<\/a> (L\u1edbp V\u1eadt l\u00fd) t\u00edch h\u1ee3p b\u00ean trong, ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd to\u00e0n b\u1ed9 t\u00edn hi\u1ec7u \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25832-1-2-4g-transceiver-modules.htm\">c\u00e1c m\u00f4-\u0111un SFP s\u1ee3i quang<\/a>, v\u1ed1n truy\u1ec1n tr\u1ef1c ti\u1ebfp t\u00edn hi\u1ec7u quang, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476785.htm\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng <\/a>th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00e3 h\u00f3a\/gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u \u0111i\u1ec7n<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i b\u1ecf nhi\u1ec5u v\u00e0 ti\u1ebfng vang (echo cancellation)<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4i ph\u1ee5c v\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a xung nh\u1ecbp (clock recovery and synchronization)<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng v\u1edbi thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i li\u00ean k\u1ebft (auto-negotiation with the link partner)<\/p><\/li>\n\n\n\n<li><p>Chuy\u1ec3n \u0111\u1ed5i gi\u1eefa giao di\u1ec7n SFP v\u00e0 t\u00edn hi\u1ec7u RJ45<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y th\u1ef1c ch\u1ea5t bi\u1ebfn m\u00f4-\u0111un th\u00e0nh m\u1ed9t thi\u1ebft b\u1ecb <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-nic-network-interface-card\/\">NIC<\/a> Ethernet thu nh\u1ecf b\u00ean trong m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-form-factor-compatibility-standards-guide\/\">D\u1ea1ng th\u1ee9c SFP<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n so v\u1edbi m\u00f4-\u0111un SFP s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>Sinh nhi\u1ec7t cao h\u01a1n trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u m\u1ea1ch \u0111i\u1ec7n ph\u1ee9c t\u1ea1p h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi c\u00e1c quy t\u1eafc firmware v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao n\u00f3 h\u1ed7 tr\u1ee3 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 10\/100\/1000 Mbps<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4-\u0111un SFP 10\/100\/1000BASE-T h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng \u0111a t\u1ed1c \u0111\u1ed9 th\u00f4ng qua <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\">IEEE 802.3<\/a> th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng, \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi chipset PHY t\u00edch h\u1ee3p b\u00ean trong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ph\u00e1t hi\u1ec7n kh\u1ea3 n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i li\u00ean k\u1ebft<\/p><\/li>\n\n\n\n<li><p>Trao \u0111\u1ed5i c\u00e1c tham s\u1ed1 t\u1ed1c \u0111\u1ed9 v\u00e0 ch\u1ebf \u0111\u1ed9 duplex<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9 cao nh\u1ea5t chung \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>10 Mbps (Ethernet)<\/p><\/li>\n\n\n\n<li><p>100 Mbps (Ethernet Nhanh)<\/p><\/li>\n\n\n\n<li><p>1000 Mbps (Ethernet Gigabit)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ea1i sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<\/p><\/li>\n\n\n\n<li><p>Th\u00edch \u1ee9ng v\u1edbi \u0111i\u1ec1u ki\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m thi\u1ec3u c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng h\u1ed7n h\u1ee3p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, trong th\u1ef1c t\u1ebf, c\u00e1c s\u1ef1 c\u1ed1 v\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Gi\u1edbi h\u1ea1n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p<\/p><\/li>\n\n\n\n<li><p>H\u1ea1n ch\u1ebf ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng kh\u1edbp ch\u1ebf \u0111\u1ed9 duplex<\/p><\/li>\n\n\n\n<li><p>Th\u1ef1c thi chip PHY ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o ti\u00eau chu\u1ea9n m\u00e0 c\u00f2n v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng thi\u1ebft k\u1ebf m\u00f4-\u0111un v\u00e0 ki\u1ec3m tra kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u00f4ng ngh\u1ec7 SFP 1000BASE-T<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4-\u0111un SFP 1000BASE-T (SFP \u0111\u1ed3ng RJ45) kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n \u0111\u01a1n gi\u1ea3n. V\u1ec1 m\u1eb7t n\u1ed9i b\u1ed9, \u0111\u00e2y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb ch\u1ee7 \u0111\u1ed9ng t\u00edch h\u1ee3p cao, th\u1ef1c hi\u1ec7n x\u1eed l\u00fd t\u00edn hi\u1ec7u th\u1eddi gian th\u1ef1c nh\u1eb1m cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u Gigabit Ethernet tr\u00ean c\u00e1p \u0111\u1ed3ng ti\u00eau chu\u1ea9n. Ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 d\u1ef1a tr\u00ean m\u1ed9t ki\u1ebfn tr\u00fac nh\u1ecf g\u1ecdn nh\u01b0ng m\u1ea1nh m\u1ebd, t\u1eadp trung v\u00e0o chipset PHY Ethernet.<\/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\/a4b5cc1fd96e4b9abdfd334387563adc.jpg\" alt=\"How 1000BASE-T SFP Technology Works Inside\" class=\"wp-image-2495\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a4b5cc1fd96e4b9abdfd334387563adc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a4b5cc1fd96e4b9abdfd334387563adc-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a4b5cc1fd96e4b9abdfd334387563adc-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a4b5cc1fd96e4b9abdfd334387563adc-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a4b5cc1fd96e4b9abdfd334387563adc-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Quy tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i PHY Ethernet n\u1ed9i b\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00f5i c\u1ee7a m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476807.htm\">M\u00f4-\u0111un SFP 1000BASE-T<\/a> l\u00e0 chip PHY Ethernet (L\u1edbp V\u1eadt l\u00fd), \u0111\u00f3ng vai tr\u00f2 nh\u01b0 b\u1ed9 x\u1eed l\u00fd ch\u00ednh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quy tr\u00ecnh l\u00e0m vi\u1ec7c n\u1ed9i b\u1ed9 th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>Nh\u1eadn d\u1eef li\u1ec7u t\u1eeb giao di\u1ec7n ch\u1ee7 SFP<\/p><\/li>\n\n\n\n<li><p>Chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1 sang \u0111\u1ecbnh d\u1ea1ng PHY Ethernet<\/p><\/li>\n\n\n\n<li><p>M\u00e3 h\u00f3a t\u00edn hi\u1ec7u \u0111\u1ec3 truy\u1ec1n tr\u00ean c\u00e1p \u0111\u1ed3ng<\/p><\/li>\n\n\n\n<li><p>Qu\u1ea3n l\u00fd giao ti\u1ebfp hai chi\u1ec1u to\u00e0n-duplex qua b\u1ed1n c\u1eb7p d\u00e2y xo\u1eafn<\/p><\/li>\n\n\n\n<li><p>X\u1eed l\u00fd t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng (auto-negotiation) v\u00e0 \u0111\u1ed3ng b\u1ed9 li\u00ean k\u1ebft<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd d\u1ef1a tr\u00ean PHY n\u00e0y cho ph\u00e9p m\u00f4-\u0111un ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t giao di\u1ec7n Ethernet t\u1ef1 ch\u1ee9a b\u00ean trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.rj45-modularjack.com\/supplier-26969-sfp-cage-connector\">ng\u0103n ch\u1ee9a SFP<\/a>, thay v\u00ec m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i th\u1ee5 \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bi\u1ebfn \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n so v\u1edbi t\u00edn hi\u1ec7u quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa SFP \u0111\u1ed3ng v\u00e0 SFP s\u1ee3i quang n\u1eb1m \u1edf lo\u1ea1i qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476777.htm\"><strong>Fiber optic links are better for long-distance or EMI-sensitive environments<\/strong><\/a><strong> (Truy\u1ec1n d\u1eabn \u0111i\u1ec7n)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p tr\u00ean c\u00e1p \u0111\u1ed3ng xo\u1eafn<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u c\u00e2n b\u1eb1ng t\u00edn hi\u1ec7u v\u00e0 b\u00f9 nhi\u1ec5u<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 giao ti\u1ebfp hai chi\u1ec1u tr\u00ean c\u1ea3 b\u1ed1n c\u1eb7p d\u00e2y<\/p><\/li>\n\n\n\n<li><p>Ph\u1ee5 thu\u1ed9c m\u1ea1nh v\u00e0o x\u1eed l\u00fd \u1edf c\u1ea5p \u0111\u1ed9 PHY<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/strong><\/a><strong> (Truy\u1ec1n d\u1eabn quang)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh \u00e1nh s\u00e1ng th\u00f4ng qua \u0111i-\u1ed1t laser<\/p><\/li>\n\n\n\n<li><p>Truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1p quang<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng \u0111i-\u1ed1t quang \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u1eeb \u00e1nh s\u00e1ng sang \u0111i\u1ec7n<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1edbi m\u1ee9c \u0111\u1ed9 x\u1eed l\u00fd th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec truy\u1ec1n d\u1eabn \u0111\u1ed3ng d\u1ec5 b\u1ecb nhi\u1ec5u h\u01a1n, m\u00f4-\u0111un ph\u1ea3i ch\u1ee7 \u0111\u1ed9ng hi\u1ec7u ch\u1ec9nh bi\u1ebfn d\u1ea1ng t\u00edn hi\u1ec7u theo th\u1eddi gian th\u1ef1c, l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p x\u1eed l\u00fd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u01a1 ch\u1ebf ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 sinh nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u0111\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t c\u1ee7a m\u00f4-\u0111un SFP 1000BASE-T l\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u01b0\u01a1ng \u0111\u1ed1i cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00fd do ti\u00eau th\u1ee5 \u0111i\u1ec7n cao:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u1eed l\u00fd t\u00edn hi\u1ec7u PHY li\u00ean t\u1ee5c<\/p><\/li>\n\n\n\n<li><p>C\u00e1c thao t\u00e1c DSP (<a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\" target=\"_blank\" rel=\"\">x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1<\/a>) nh\u1eb1m lo\u1ea1i b\u1ecf nhi\u1ec5u<\/p><\/li>\n\n\n\n<li><p>Tri\u1ec7t echo v\u00e0 c\u00e2n b\u1eb1ng th\u00edch \u1ee9ng<\/p><\/li>\n\n\n\n<li><p>Logic t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng \u0111a t\u1ed1c \u0111\u1ed9 (10\/100\/1000 Mbps)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ec7 qu\u1ea3 ph\u00e1t sinh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ea3i \u0111i\u1ec7n cao h\u01a1n tr\u00ean m\u1ed7i m\u00f4-\u0111un (th\u01b0\u1eddng 1W\u20132,5W+)<\/p><\/li>\n\n\n\n<li><p>Sinh nhi\u1ec7t \u0111\u00e1ng k\u1ec3 trong d\u1ea1ng h\u00ecnh th\u1ee9c SFP nh\u1ecf g\u1ecdn<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec7t \u0111\u1ed9 khung switch t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3 trong c\u00e1c tri\u1ec3n khai m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng th\u01b0\u1eddng b\u1ecb tr\u00e1nh d\u00f9ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 kh\u00f4ng gian ch\u1eadt h\u1eb9p, n\u01a1i hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao SFP \u0111\u1ed3ng ph\u1ee9c t\u1ea1p h\u01a1n SFP s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u1ea3 hai m\u00f4-\u0111un \u0111\u1ec1u c\u00f3 c\u00f9ng d\u1ea1ng h\u00ecnh th\u1ee9c SFP, \u0111\u1ed9 ph\u1ee9c t\u1ea1p k\u1ef9 thu\u1eadt b\u00ean trong l\u1ea1i c\u01a1 b\u1ea3n kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p x\u1eed l\u00fd t\u00edn hi\u1ec7u<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP \u0111\u1ed3ng: Y\u00eau c\u1ea7u x\u1eed l\u00fd \u0111\u1ea7y \u0111\u1ee7 PHY + DSP<\/p><\/li>\n\n\n\n<li><p>SFP s\u1ee3i quang: Ch\u1ee7 y\u1ebfu l\u00e0 chuy\u1ec3n \u0111\u1ed5i quang v\u1edbi logic \u0111\u01a1n gi\u1ea3n h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Y\u00eau c\u1ea7u s\u1eeda l\u1ed7i<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed3ng: Ph\u1ea3i ch\u1ee7 \u0111\u1ed9ng s\u1eeda nhi\u1ec5u, nhi\u1ec5u \u0111i\u1ec7n t\u1eeb v\u00e0 suy hao<\/p><\/li>\n\n\n\n<li><p>S\u1ee3i quang: T\u1ef1 nhi\u00ean mi\u1ec5n nhi\u1ec5m v\u1edbi <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-electromagnetic-interference\/\" target=\"_blank\" rel=\"\">nhi\u1ec5u \u0111i\u1ec7n t\u1eeb<\/a><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ki\u1ebfn tr\u00fac ph\u1ea7n c\u1ee9ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP \u0111\u1ed3ng: Bao g\u1ed3m b\u1ed9 \u0111i\u1ec1u khi\u1ec3n RJ45, chip PHY v\u00e0 c\u00e1c m\u1ea1ch x\u1eed l\u00fd t\u01b0\u01a1ng t\u1ef1<\/p><\/li>\n\n\n\n<li><p>SFP s\u1ee3i quang: B\u1ed9 \u0111i\u1ec1u khi\u1ec3n laser + <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/pin-apd-photodiode-technologies-applications\/\" target=\"_blank\" rel=\"\">\u0111i-\u1ed1t quang<\/a> + IC \u0111i\u1ec1u khi\u1ec3n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ed9 nh\u1ea1y m\u00f4i tr\u01b0\u1eddng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP \u0111\u1ed3ng: Nh\u1ea1y c\u1ea3m v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p, EMI v\u00e0 nhi\u1ec7t<\/p><\/li>\n\n\n\n<li><p>SFP s\u1ee3i quang: \u1ed4n \u0111\u1ecbnh tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i v\u00e0 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb g\u00f3c \u0111\u1ed9 tri\u1ec3n khai th\u1ef1c t\u1ebf, \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP 1000BASE-T gi\u1ea3i th\u00edch ba h\u00e0nh vi ph\u1ed5 bi\u1ebfn th\u01b0\u1eddng th\u1ea5y b\u1edfi k\u1ef9 s\u01b0 m\u1ea1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ef7 l\u1ec7 h\u1ecfng cao h\u01a1n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng th\u00f4ng gi\u00f3 k\u00e9m<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 nh\u1ea1y t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p switch kh\u00e1c nhau<\/p><\/li>\n\n\n\n<li><p>Bi\u1ebfn \u0111\u1ed5i hi\u1ec7u n\u0103ng t\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi\u1ec1u d\u00e0i c\u00e1p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i thi\u1ebft k\u1ebf, m\u00e0 l\u00e0 h\u1ec7 qu\u1ea3 t\u1ea5t y\u1ebfu khi th\u1ef1c hi\u1ec7n to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh x\u1eed l\u00fd PHY Ethernet b\u00ean trong m\u1ed9t m\u00f4-\u0111un SFP nh\u1ecf g\u1ecdn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 So s\u00e1nh SFP 10\/100\/1000BASE-T, SFP s\u1ee3i quang v\u00e0 c\u00e1p DAC<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi thi\u1ebft k\u1ebf m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i, k\u1ef9 s\u01b0 th\u01b0\u1eddng l\u1ef1a ch\u1ecdn gi\u1eefa SFP \u0111\u1ed3ng (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476778.htm\">RJ45 1000BASE-T<br><\/a>), <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">c\u00e1c module SFP s\u1ee3i quang<\/a>, and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-breakout-dac-and-why-breakout-dac-matters\/\">SFF-8472<\/a> (c\u00e1p \u0111\u1ed3ng g\u1eafn tr\u1ef1c ti\u1ebfp). D\u00f9 c\u1ea3 ba gi\u1ea3i ph\u00e1p \u0111\u1ec1u ph\u1ee5c v\u1ee5 k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u1ebfn trung b\u00ecnh, ch\u00fang kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 \u0111\u1ed9 tr\u1ec5, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng, t\u00ednh linh ho\u1ea1t tri\u1ec3n khai v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i ph\u00f9 h\u1ee3p trong c\u00e1c m\u00f4i tr\u01b0\u1eddng 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\/96c1045f7e23422f878c25101840cebc.jpg\" alt=\"10\/100\/1000BASE-T SFP vs. Fiber SFP vs. DAC Cable\" class=\"wp-image-2496\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/96c1045f7e23422f878c25101840cebc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/96c1045f7e23422f878c25101840cebc-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/96c1045f7e23422f878c25101840cebc-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/96c1045f7e23422f878c25101840cebc-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/96c1045f7e23422f878c25101840cebc-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\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;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110i\u1ec7n n\u0103ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec7t<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>SFP \u0111\u1ed3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00edch h\u1ee3p RJ45 k\u1ebf th\u1eeba<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng l\u00f5i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>SFF-8472<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1\u201310 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>```html<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh \u0111\u1ed9 tr\u1ec5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 tr\u1ec5 thay \u0111\u1ed5i t\u00f9y theo ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n d\u1eabn v\u00e0 y\u00eau c\u1ea7u x\u1eed l\u00fd n\u1ed9i b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP \u0111\u1ed3ng (10\/100\/1000BASE-T)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 tr\u1ec5 cao nh\u1ea5t trong ba l\u1ef1a ch\u1ecdn<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u x\u1eed l\u00fd t\u00edn hi\u1ec7u PHY n\u1ed9i b\u1ed9 v\u00e0 c\u00e1c thao t\u00e1c DSP<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u1ec5 b\u1ed5 sung do \u0111i\u1ec1u ki\u1ec7n t\u00edn hi\u1ec7u \u0111i\u1ec7n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 tr\u1ec5 r\u1ea5t th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Truy\u1ec1n d\u1eabn t\u00edn hi\u1ec7u quang tr\u1ef1c ti\u1ebfp v\u1edbi m\u1ee9c x\u1eed l\u00fd t\u1ed1i thi\u1ec3u<\/p><\/li>\n\n\n\n<li><p>L\u00fd t\u01b0\u1edfng cho c\u00e1c l\u1edbp x\u01b0\u01a1ng s\u1ed1ng v\u00e0 t\u1eadp h\u1ee3p t\u1ed1c \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p DAC<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 tr\u1ec5 th\u1ea5p nh\u1ea5t trong tri\u1ec3n khai th\u1ef1c t\u1ebf<\/p><\/li>\n\n\n\n<li><p>Truy\u1ec1n d\u1eabn \u0111\u1ed3ng th\u1ee5 \u0111\u1ed9ng ho\u1eb7c g\u1ea7n nh\u01b0 ch\u1ee7 \u0111\u1ed9ng<\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00f3m t\u1eaft:<\/strong> DAC &lt; SFP s\u1ee3i quang &lt; SFP \u0111\u1ed3ng (v\u1ec1 hi\u1ec7u n\u0103ng \u0111\u1ed9 tr\u1ec5)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7u qu\u1ea3 \u0111i\u1ec7n n\u0103ng l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP \u0111\u1ed3ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao nh\u1ea5t (th\u01b0\u1eddng ~1W\u20132,5W+)<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u x\u1eed l\u00fd PHY li\u00ean t\u1ee5c<\/p><\/li>\n\n\n\n<li><p>Sinh nhi\u1ec7t \u0111\u00e1ng k\u1ec3 b\u00ean trong c\u00e1c switch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng trung b\u00ecnh (~0,5W\u20131W t\u00f9y theo quang h\u1ecdc)<\/p><\/li>\n\n\n\n<li><p>Chuy\u1ec3n \u0111\u1ed5i quang hi\u1ec7u qu\u1ea3 v\u1edbi m\u1ee9c t\u1ea3i DSP th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p DAC<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p nh\u1ea5t (\u0111\u1eb7c bi\u1ec7t v\u1edbi DAC th\u1ee5 \u0111\u1ed9ng)<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng y\u00eau c\u1ea7u ho\u1eb7c ch\u1ec9 c\u1ea7n x\u1eed l\u00fd t\u00edn hi\u1ec7u ch\u1ee7 \u0111\u1ed9ng t\u1ed1i thi\u1ec3u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00f3m t\u1eaft:<\/strong> DAC (hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t) \u2192 SFP s\u1ee3i quang \u2192 SFP \u0111\u1ed3ng (ti\u00eau th\u1ee5 cao nh\u1ea5t)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kho\u1ea3ng c\u00e1ch v\u00e0 k\u1ecbch b\u1ea3n tri\u1ec3n khai<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho c\u00e1c kho\u1ea3ng c\u00e1ch m\u1ea1ng v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP \u0111\u1ed3ng (RJ45)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u00ean t\u1edbi ~100 m\u00e9t<\/p><\/li>\n\n\n\n<li><p>Ph\u00f9 h\u1ee3p nh\u1ea5t cho k\u1ebft n\u1ed1i \u0111\u1ea7u cu\u1ed1i v\u00e0 c\u00e1c thi\u1ebft b\u1ecb Ethernet k\u1ebf th\u1eeba<\/p><\/li>\n\n\n\n<li><p>Ph\u1ed5 bi\u1ebfn trong v\u0103n ph\u00f2ng<a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/local-area-network-lan-modern-networking-fast-secure-connections\/\" target=\"_blank\" rel=\"\"> M\u1ea1ng LAN<\/a> v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng h\u1ed7n h\u1ee3p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1eeb 550m (\u0111a mode) \u0111\u1ebfn 10km\u201380km+ (\u0111\u01a1n mode)<\/p><\/li>\n\n\n\n<li><p>L\u00fd t\u01b0\u1edfng cho<strong> <\/strong><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-data-center\/\" target=\"_blank\" rel=\"\">trung t\u00e2m d\u1eef li\u1ec7u<\/a> x\u01b0\u01a1ng s\u1ed1ng, m\u1ea1ng khu\u00f4n vi\u00ean v\u00e0 <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-wide-area-network\/\" target=\"_blank\" rel=\"\">WAN<\/a> li\u00ean k\u1ebft<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ed1c \u0111\u1ed9 cao (h\u1ec7 sinh th\u00e1i 1G\u2013400G)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p DAC<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u01b0\u1eddng t\u1eeb 0,5m\u201310m<\/p><\/li>\n\n\n\n<li><p>T\u1ed1t nh\u1ea5t cho k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c gi\u00e1 rack trong trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>Ph\u1ed5 bi\u1ebfn gi\u1eefa c\u00e1c switch, m\u00e1y ch\u1ee7 v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u00e1nh \u0111\u1ed5i chi ph\u00ed so v\u1edbi hi\u1ec7u n\u0103ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e2n b\u1eb1ng chi ph\u00ed, hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP \u0111\u1ed3ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chi ph\u00ed tri\u1ec3n khai ban \u0111\u1ea7u th\u1ea5p (s\u1eed d\u1ee5ng h\u1ea1 t\u1ea7ng RJ45 hi\u1ec7n c\u00f3)<\/p><\/li>\n\n\n\n<li><p>Chi ph\u00ed v\u1eadn h\u00e0nh d\u00e0i h\u1ea1n cao h\u01a1n do ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 nhi\u1ec7t<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng h\u1ea1n ch\u1ebf trong m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chi ph\u00ed ban \u0111\u1ea7u cao h\u01a1n (quang h\u1ecdc + c\u00e1p quang)<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh tuy\u1ec7t v\u1eddi v\u1ec1 l\u00e2u d\u00e0i<\/p><\/li>\n\n\n\n<li><p>T\u1ef7 l\u1ec7 l\u1ed7i th\u1ea5p h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng t\u1ed1t h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p DAC<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed5ng chi ph\u00ed th\u1ea5p nh\u1ea5t cho k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li>\n\n\n\n<li><p>C\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed trong trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 linh ho\u1ea1t h\u1ea1n ch\u1ebf do chi\u1ec1u d\u00e0i c\u00e1p c\u1ed1 \u0111\u1ecbnh<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eadn \u0111\u1ecbnh then ch\u1ed1t:<br><\/strong> SFP \u0111\u1ed3ng l\u00e0 gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1ec1 m\u1eb7t t\u01b0\u01a1ng th\u00edch, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ec3 m\u1edf r\u1ed9ng hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi N\u00c0O KH\u00d4NG N\u00caN s\u1eed d\u1ee5ng SFP \u0111\u1ed3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 linh ho\u1ea1t, module SFP 10\/100\/1000BASE-T kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n n\u00ean tr\u00e1nh s\u1eed d\u1ee5ng SFP \u0111\u1ed3ng trong c\u00e1c t\u00ecnh hu\u1ed1ng sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c M\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00edch t\u1ee5 nhi\u1ec7t qu\u00e1 m\u1ee9c<\/p><\/li>\n\n\n\n<li><p>T\u1ea3i l\u00e0m m\u00e1t switch t\u0103ng l\u00ean<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tin c\u1eady d\u00e0i h\u1ea1n gi\u1ea3m<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c M\u1ea1ng hi\u1ec7u n\u0103ng cao ho\u1eb7c \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>G\u00e2y th\u00eam \u0111\u1ed9 tr\u1ec5 x\u1eed l\u00fd PHY<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m v\u1edbi \u0111\u1ed9 tr\u1ec5<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng x\u01b0\u01a1ng s\u1ed1ng d\u00e0i h\u1ea1n<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Gi\u1edbi h\u1ea1n \u1edf kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a 100m<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng th\u1ec3 m\u1edf r\u1ed9ng cho c\u00e1c ki\u1ebfn tr\u00fac t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c Switch c\u00f3 lu\u1ed3ng kh\u00ed k\u00e9m ho\u1eb7c b\u1ecb gi\u1edbi h\u1ea1n v\u1ec1 nhi\u1ec7t<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Module SFP \u0111\u1ed3ng l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 nhi\u1ec7t \u0111\u1ed9 b\u00ean trong<\/p><\/li>\n\n\n\n<li><p>C\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c c\u1ed5ng li\u1ec1n k\u1ec1 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u cho module SFP \u0111\u1ed3ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 module SFP 10\/100\/1000BASE-T (SFP \u0111\u1ed3ng RJ45) kh\u00f4ng l\u00fd t\u01b0\u1edfng cho m\u1ecdi t\u00ecnh hu\u1ed1ng m\u1ea1ng, ch\u00fang v\u1eabn r\u1ea5t h\u1eefu \u00edch trong m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng tri\u1ec3n khai c\u1ee5 th\u1ec3, n\u01a1i t\u00ednh linh ho\u1ea1t, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed quan tr\u1ecdng h\u01a1n hi\u1ec7u n\u0103ng t\u1ed1i \u0111a ho\u1eb7c hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t d\u1ef1a tr\u00ean c\u00e1c tri\u1ec3n khai m\u1ea1ng th\u1ef1c t\u1ebf.<\/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\/13555acbe23942478616955f493c9f22.jpg\" alt=\"Best Use Cases for Copper SFP Modules\" class=\"wp-image-2497\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/13555acbe23942478616955f493c9f22.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/13555acbe23942478616955f493c9f22-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/13555acbe23942478616955f493c9f22-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/13555acbe23942478616955f493c9f22-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/13555acbe23942478616955f493c9f22-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00edch h\u1ee3p thi\u1ebft b\u1ecb RJ45 k\u1ebf th\u1eeba<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a m\u00f4-\u0111un SFP \u0111\u1ed3ng l\u00e0 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb d\u1ef1a tr\u00ean RJ45 k\u1ebf th\u1eeba v\u1edbi c\u00e1c switch hi\u1ec7n \u0111\u1ea1i ch\u1ec9 h\u1ed7 tr\u1ee3 khe SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c t\u00ecnh hu\u1ed1ng \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c m\u00e1y ch\u1ee7 c\u0169 kh\u00f4ng c\u00f3 giao di\u1ec7n s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>Camera IP trong h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t<\/p><\/li>\n\n\n\n<li><p>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p v\u00e0 <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/link-pp-optical-modules-in-plc-systems\/\" target=\"_blank\" rel=\"\">PLC<\/a> thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>C\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c \u0111i\u1ec3m truy c\u1eadp k\u1ebf th\u1eeba<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y, vi\u1ec7c thay th\u1ebf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng hi\u1ec7n c\u00f3 b\u1eb1ng ph\u1ea7n c\u1ee9ng s\u1eb5n s\u00e0ng cho s\u1ee3i quang th\u01b0\u1eddng t\u1ed1n k\u00e9m ho\u1eb7c kh\u00f4ng kh\u1ea3 thi. M\u00f4-\u0111un SFP \u0111\u1ed3ng cung c\u1ea5p m\u1ed9t c\u1ea7u n\u1ed1i \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed gi\u1eefa ki\u1ebfn tr\u00fac switch hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u00e1c thi\u1ebft b\u1ecb Ethernet k\u1ebf th\u1eeba.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Li\u00ean k\u1ebft l\u00ean (uplink) cho switch v\u0103n ph\u00f2ng nh\u1ecf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng doanh nghi\u1ec7p v\u1eeba v\u00e0 nh\u1ecf (SMB), m\u00f4-\u0111un SFP \u0111\u1ed3ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 uplink switch t\u1edbi b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c thi\u1ebft b\u1ecb ph\u00e2n ph\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00fd do n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng SMB:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ec7 th\u1ed1ng c\u00e1p RJ45 c\u00f3 c\u1ea5u tr\u00fac \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai s\u1eb5n<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch m\u1ea1ng gi\u1edbi h\u1ea1n (&lt;100 m\u00e9t)<\/p><\/li>\n\n\n\n<li><p>M\u1eadt \u0111\u1ed9 l\u01b0u l\u01b0\u1ee3ng th\u1ea5p h\u01a1n so v\u1edbi trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>M\u00f4 h\u00ecnh tri\u1ec3n khai nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean CNTT m\u1edf r\u1ed9ng n\u0103ng l\u1ef1c m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n thi\u1ebft k\u1ebf l\u1ea1i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p v\u1eadt l\u00fd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1edf r\u1ed9ng m\u1ea1ng t\u1ea1m th\u1eddi ho\u1eb7c linh ho\u1ea1t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4-\u0111un SFP \u0111\u1ed3ng c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c t\u00ecnh hu\u1ed1ng m\u1edf r\u1ed9ng m\u1ea1ng t\u1ea1m th\u1eddi, v\u00ed d\u1ee5 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ea1ng s\u1ef1 ki\u1ec7n ho\u1eb7c h\u1ed9i ch\u1ee3 tri\u1ec3n l\u00e3m<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft l\u1eadp v\u0103n ph\u00f2ng ng\u1eafn h\u1ea1n<\/p><\/li>\n\n\n\n<li><p>Ph\u1ee5c h\u1ed3i m\u1ea1ng kh\u1ea9n c\u1ea5p ho\u1eb7c sau th\u1ea3m h\u1ecda<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m ban \u0111\u1ea7u (pilot testing)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Tri\u1ec3n khai \u201cc\u1eafm v\u00e0o l\u00e0 ch\u1ea1y\u201d (plug-and-play)<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng c\u1ea7n x\u1eed l\u00fd \u0111\u1ea7u n\u1ed1i ho\u1eb7c h\u00e0n s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>Ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c d\u00e2y c\u00e1p n\u1ed1i \u0111\u1ed3ng hi\u1ec7n c\u00f3<\/p><\/li>\n\n\n\n<li><p>D\u1ec5 th\u00e1o r\u1eddi v\u00e0 t\u00e1i s\u1eed d\u1ee5ng<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">K\u1ebft n\u1ed1i \u1edf l\u1edbp bi\u00ean trung t\u00e2m d\u1eef li\u1ec7u (c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng h\u1ea1n ch\u1ebf)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i, m\u00f4-\u0111un SFP \u0111\u1ed3ng n\u00f3i chung kh\u00f4ng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean cho chuy\u1ec3n m\u1ea1ch l\u00f5i, nh\u01b0ng v\u1eabn c\u00f3 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng h\u1ea1n ch\u1ebf \u1edf l\u1edbp bi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c \u1ee9ng d\u1ee5ng bi\u00ean ph\u00f9 h\u1ee3p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1ed5ng truy c\u1eadp m\u1ea1ng qu\u1ea3n tr\u1ecb<\/p><\/li>\n\n\n\n<li><p>H\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t b\u0103ng th\u00f4ng th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>C\u00e1c \u0111i\u1ec3m k\u1ebft n\u1ed1i t\u1ea1m th\u1eddi \u0111\u1ec3 ki\u1ec3m tra thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>Giao ti\u1ebfp v\u1edbi c\u00e1c thi\u1ebft b\u1ecb b\u00ean ngo\u00e0i d\u1ef1a tr\u00ean RJ45<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng ch\u00fang trong trung t\u00e2m d\u1eef li\u1ec7u b\u1ecb h\u1ea1n ch\u1ebf do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nhi\u1ec7t \u0111\u1ed9 t\u1ecfa ra cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u0103ng cao<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng h\u1ea1n ch\u1ebf trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>S\u1edf th\u00edch \u0111\u1ed1i v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p SFP s\u1ee3i quang v\u00e0 DAC<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 C\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u1edbi module SFP \u0111\u1ed3ng RJ45<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c module SFP 10\/100\/1000BASE-T (SFP \u0111\u1ed3ng RJ45) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1edd t\u00ednh linh ho\u1ea1t, ch\u00fang c\u0169ng g\u00e2y ra m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c v\u1eadn h\u00e0nh trong tri\u1ec3n khai th\u1ef1c t\u1ebf. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfn nhi\u1ec7t, \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 gi\u1edbi h\u1ea1n c\u00f4ng su\u1ea5t, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u1ea1ng doanh nghi\u1ec7p v\u00e0 m\u1ea1ng \u0111a nh\u00e0 cung c\u1ea5p.<\/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\/4d3452da242442ec8ca9b1cdbbbce545.jpg\" alt=\"Common Problems with RJ45 Copper SFP Modules\" class=\"wp-image-2498\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4d3452da242442ec8ca9b1cdbbbce545.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4d3452da242442ec8ca9b1cdbbbce545-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4d3452da242442ec8ca9b1cdbbbce545-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4d3452da242442ec8ca9b1cdbbbce545-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4d3452da242442ec8ca9b1cdbbbce545-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 V\u1ea5n \u0111\u1ec1 qu\u00e1 nhi\u1ec7t tr\u00ean c\u00e1c switch m\u1eadt \u0111\u1ed9 cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476794.htm\">M\u00f4-\u0111un SFP \u0111\u1ed3ng<\/a> T\u1ea1o ra l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u00e1ng k\u1ec3 h\u01a1n so v\u1edbi b\u1ed9 thu ph\u00e1t s\u1ee3i quang v\u00ec ch\u00fang ch\u1ee9a \u0111\u1ea7y \u0111\u1ee7 chipset PHY Ethernet b\u00ean trong d\u1ea1ng h\u1ec7 s\u1ed1 SFP nh\u1ecf g\u1ecdn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c tri\u1ec7u ch\u1ee9ng ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Qu\u1ea1t switch ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec7t \u0111\u1ed9 khung v\u1ecf t\u0103ng cao<\/p><\/li>\n\n\n\n<li><p>T\u00edch t\u1ee5 nhi\u1ec7t g\u1ea7n c\u00e1c c\u1ed5ng li\u1ec1n k\u1ec1<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh d\u00e0i h\u1ea1n c\u1ee7a module<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u1eed l\u00fd li\u00ean t\u1ee5c b\u1eb1ng DSP v\u00e0 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n trong kh\u00f4ng gian h\u1ea1n ch\u1ebf l\u00e0m t\u0103ng t\u1ea3i nhi\u1ec7t, \u0111\u1eb7c bi\u1ec7t khi nhi\u1ec1u <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476787.htm\">module SFP RJ45<\/a> \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean c\u00e1c switch m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 B\u1ea5t \u1ed5n k\u1ebft n\u1ed1i v\u00e0 l\u1ed7i th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p kh\u00e1c l\u00e0 h\u00e0nh vi k\u1ebft n\u1ed1i kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9 sai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c v\u1ea5n \u0111\u1ec1 \u0111i\u1ec3n h\u00ecnh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y li\u00ean k\u1ebft (chu k\u1ef3 b\u1eadt\/t\u1eaft)<\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i b\u1ecb k\u1eb9t \u1edf t\u1ed1c \u0111\u1ed9 100 Mbps thay v\u00ec 1 Gbps<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c li\u00ean k\u1ebft trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1ef1 kh\u00f4ng kh\u1edbp v\u1ec1 t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng (auto-negotiation) gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00e1c bi\u1ec7t trong h\u00e0nh vi firmware gi\u1eefa c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t switch<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng chipset PHY<\/p><\/li>\n\n\n\n<li><p>H\u1ea1n ch\u1ebf v\u1ec1 hi\u1ec7u n\u0103ng c\u00e1p khi ch\u1ecbu t\u1ea3i<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 Ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p (\u1ea2nh h\u01b0\u1edfng c\u1ee7a Cat5e so v\u1edbi Cat6 v\u00e0 Cat6a)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7u n\u0103ng c\u1ee7a m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476786.htm\">M\u00f4-\u0111un SFP 1000BASE-T<\/a> ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p \u0111\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u01b0\u1edbng d\u1eabn ng\u00e0nh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Cat5e:<\/strong> Y\u00eau c\u1ea7u t\u1ed1i thi\u1ec3u \u0111\u1ec3 \u0111\u1ea1t 1 Gbps trong kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 100 m<\/p><\/li>\n\n\n\n<li><p><strong>Cat6:<\/strong> \u0110\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho hi\u1ec7u n\u0103ng Gigabit \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n\n\n\n<li><p><strong>Cat6a:<br><\/strong> T\u1ed1t nh\u1ea5t \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u v\u00e0 t\u0103ng \u0111\u1ed9 tin c\u1eady<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c t\u00ecnh hu\u1ed1ng l\u1ed7i ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1p k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng g\u00e2y m\u1ea5t g\u00f3i tin<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 d\u00e0i c\u00e1p qu\u00e1 l\u1edbn l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 hi\u1ec7u d\u1ee5ng<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p \u201c<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-issue-troubleshooting-guide\/\">l\u1ed7i SFP<\/a>\u201d th\u1ef1c ch\u1ea5t l\u00e0 do v\u1ea5n \u0111\u1ec1 c\u00e1p ch\u1ee9 kh\u00f4ng ph\u1ea3i do module b\u1ecb l\u1ed7i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 H\u1ea1n ch\u1ebf ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t tr\u00ean switch doanh nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP \u0111\u1ed3ng ti\u00eau th\u1ee5 nhi\u1ec1u c\u00f4ng su\u1ea5t h\u01a1n c\u00e1c module SFP s\u1ee3i quang, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra gi\u1edbi h\u1ea1n trong c\u00e1c tri\u1ec3n khai m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c v\u1ea5n \u0111\u1ec1 ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ph\u00e2n b\u1ed5 c\u00f4ng su\u1ea5t SFP tr\u00ean m\u1ed7i c\u1ed5ng b\u1ecb gi\u1edbi h\u1ea1n<\/p><\/li>\n\n\n\n<li><p>S\u1ed1 l\u01b0\u1ee3ng module SFP \u0111\u1ed3ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 tr\u00ean m\u1ed7i switch b\u1ecb gi\u1ea3m<\/p><\/li>\n\n\n\n<li><p>Nhu c\u1ea7u c\u00f4ng su\u1ea5t v\u00e0 l\u00e0m m\u00e1t t\u1ed5ng th\u1ec3 c\u1ee7a switch t\u0103ng l\u00ean<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00e1c \u0111\u1ed9ng: <\/strong>Trong c\u00e1c tri\u1ec3n khai quy m\u00f4 l\u1edbn, vi\u1ec7c s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u module SFP \u0111\u1ed3ng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111i\u1ec1u ch\u1ec9nh k\u1ebf ho\u1ea1ch l\u00e0m m\u00e1t v\u00e0 c\u1ea5p ngu\u1ed3n \u0111\u1ec3 duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 V\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u switch (Cisco, HP, MikroTik)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c quan tr\u1ecdng nh\u1ea5t \u0111\u1ed1i v\u1edbi c\u00e1c module SFP RJ45 l\u00e0 c\u00e1c h\u1ea1n ch\u1ebf v\u1ec1 t\u01b0\u01a1ng th\u00edch theo nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Quang h\u1ecdc m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p \/ Kh\u00f3a EEPROM<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t switch tri\u1ec3n khai <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-eeprom-powers-sfp-and-qsfp-optical-modules\/\">B\u1ed9 nh\u1edb EEPROM<\/a>h\u1ec7 th\u1ed1ng nh\u1eadn d\u1ea1ng d\u1ef1a tr\u00ean.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed7i module SFP ch\u1ee9a d\u1eef li\u1ec7u ID nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Firmware switch ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch tr\u01b0\u1edbc khi k\u00edch ho\u1ea1t c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>C\u00e1c module kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t c\u00f3 th\u1ec3 b\u1ecb t\u1eeb ch\u1ed1i ho\u1eb7c v\u00f4 hi\u1ec7u h\u00f3a<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u201cGi\u1ea3i th\u00edch l\u1ed7i \u201dTransceiver kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn\u2014\u0111\u1eb7c bi\u1ec7t tr\u00ean n\u1ec1n t\u1ea3ng Cisco\u2014l\u00e0 th\u00f4ng b\u00e1o:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cTransceiver kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y x\u1ea3y ra khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Module kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n trong c\u01a1 s\u1edf d\u1eef li\u1ec7u t\u01b0\u01a1ng th\u00edch c\u1ee7a switch<\/p><\/li>\n\n\n\n<li><p>M\u00e3 h\u00f3a EEPROM kh\u00f4ng \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>C\u00e1c h\u1ea1n ch\u1ebf firmware ch\u1eb7n quang h\u1ecdc b\u00ean th\u1ee9 ba<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">C\u00e1c c\u00e2n nh\u1eafc th\u1ef1c t\u1ebf v\u1ec1 ma tr\u1eadn t\u01b0\u01a1ng th\u00edch<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, t\u00ednh t\u01b0\u01a1ng th\u00edch ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00f4 h\u00ecnh switch v\u00e0 phi\u00ean b\u1ea3n ph\u1ea7n c\u1ee9ng<\/p><\/li>\n\n\n\n<li><p>Phi\u00ean b\u1ea3n firmware<\/p><\/li>\n\n\n\n<li><p>Chipset v\u00e0 lo\u1ea1i m\u00e3 h\u00f3a c\u1ee7a module<\/p><\/li>\n\n\n\n<li><p>Ch\u00ednh s\u00e1ch danh s\u00e1ch tr\u1eafng \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t ma tr\u1eadn t\u01b0\u01a1ng th\u00edch ph\u1ee9c t\u1ea1p, trong \u0111\u00f3 m\u1ed9t module c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean thi\u1ebft b\u1ecb n\u00e0y nh\u01b0ng l\u1ea1i th\u1ea5t b\u1ea1i tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c, ngay c\u1ea3 khi c\u00f9ng m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">V\u00ec sao kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c module SFP RJ45 \u0111\u1ec1u c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 v\u1ec1 m\u1eb7t v\u1eadt l\u00fd gi\u1ed1ng nhau, c\u00e1c module SFP \u0111\u1ed3ng kh\u00f4ng th\u1ec3 ho\u00e1n \u0111\u1ed5i m\u1ed9t c\u00e1ch ph\u1ed5 qu\u00e1t do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c tri\u1ec3n khai chipset PHY kh\u00e1c nhau<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c l\u1eadp tr\u00ecnh EEPROM \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00e1c bi\u1ec7t trong thi\u1ebft k\u1ebf c\u00f4ng su\u1ea5t v\u00e0 nhi\u1ec7t<\/p><\/li>\n\n\n\n<li><p>C\u00e1c quy t\u1eafc x\u00e1c th\u1ef1c \u1edf c\u1ea5p firmware<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, trong c\u00e1c tri\u1ec3n khai doanh nghi\u1ec7p, th\u01b0\u1eddng y\u00eau c\u1ea7u c\u00e1c module SFP RJ45 \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u01b0\u1edbc ho\u1eb7c \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p nh\u1eb1m \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh tr\u00ean c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng \u0111a d\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 H\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 \u0111\u1ed1i v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 SFP 1000BASE-T<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, c\u00e1c module SFP 10\/100\/1000BASE-T (SFP \u0111\u1ed3ng RJ45) c\u00f3 th\u1ec3 g\u1eb7p c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u01b0\u01a1ng th\u00edch, li\u00ean k\u1ebft ho\u1eb7c hi\u1ec7u n\u0103ng\u2014th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn c\u1ea5u h\u00ecnh, c\u00e1p ho\u1eb7c r\u00e0ng bu\u1ed9c ph\u1ea7n c\u1ee9ng h\u01a1n l\u00e0 do module ho\u00e0n to\u00e0n b\u1ecb l\u1ed7i. H\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 sau \u0111\u00e2y bao qu\u00e1t c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i quy\u1ebft \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng.<\/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\/2431b621e8524a3aad65981fb30662b6.jpg\" alt=\"Troubleshooting Guide for 1000BASE-T SFP Issues\" class=\"wp-image-2499\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2431b621e8524a3aad65981fb30662b6.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2431b621e8524a3aad65981fb30662b6-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2431b621e8524a3aad65981fb30662b6-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2431b621e8524a3aad65981fb30662b6-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2431b621e8524a3aad65981fb30662b6-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1ed7i \u201cKh\u00f4ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c SFP\u201d ho\u1eb7c \u201cTransceiver kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o th\u01b0\u1eddng xuy\u00ean nh\u1ea5t, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng Cisco, HP Aruba v\u00e0 MikroTik.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><span>Sai l\u1ec7ch EEPROM \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p<\/span><\/p><\/li>\n\n\n\n<li><p><span>Firmware switch ch\u1eb7n quang h\u1ecdc b\u00ean th\u1ee9 ba<\/span><\/p><\/li>\n\n\n\n<li><p><span>Chipset module kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/span><\/p><\/li>\n\n\n\n<li><p><span>Phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m switch l\u1ed7i th\u1eddi<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec1 xu\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c minh ma tr\u1eadn t\u01b0\u01a1ng th\u00edch c\u1ee7a switch tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t<\/p><\/li>\n\n\n\n<li><p>C\u1eadp nh\u1eadt firmware switch l\u00ean phi\u00ean b\u1ea3n \u1ed5n \u0111\u1ecbnh m\u1edbi nh\u1ea5t<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng module SFP \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p ho\u1eb7c \u0111a nh\u00e0 cung c\u1ea5p <a href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\" target=\"_self\">c\u00e1c module SFP t\u01b0\u01a1ng th\u00edch<\/a><\/p><\/li>\n\n\n\n<li><p>C\u1eafm l\u1ea1i module v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i switch n\u1ebfu c\u1ea7n thi\u1ebft<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, v\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i do l\u1ed7i v\u1eadt l\u00fd m\u00e0 do gi\u1edbi h\u1ea1n x\u00e1c th\u1ef1c \u1edf c\u1ea5p firmware.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p cho li\u00ean k\u1ebft b\u1ecb ng\u1eaft ho\u1eb7c kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Li\u00ean k\u1ebft kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c ho\u1eb7c th\u01b0\u1eddng xuy\u00ean ng\u1eaft qu\u00e3ng th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 \u1edf t\u1ea7ng v\u1eadt l\u00fd ho\u1eb7c th\u01b0\u01a1ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1p Ethernet k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i c\u00e1p kh\u00f4ng \u0111\u00fang (d\u01b0\u1edbi Cat5e)<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00f4ng kh\u1edbp trong th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec1 xu\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thay c\u00e1p b\u1eb1ng d\u00e2y c\u00e1p n\u1ed1i (patch cord) \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn Cat5e ho\u1eb7c Cat6<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o c\u1ea3 hai thi\u1ebft b\u1ecb \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf ch\u1ebf \u0111\u1ed9 t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra b\u1eb1ng c\u1ed5ng switch \u0111\u00e3 bi\u1ebft l\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m \u0111\u1ed9 d\u00e0i c\u00e1p n\u1ebfu g\u1ea7n gi\u1edbi h\u1ea1n 100 m<\/p><\/li>\n\n\n\n<li><p>Tr\u00e1nh \u0111i c\u00e1p g\u1ea7n c\u00e1c ngu\u1ed3n g\u00e2y nhi\u1ec5u \u0111i\u1ec7n t\u1eeb m\u1ea1nh<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nguy\u00ean nh\u00e2n khi\u1ebfn t\u1ed1c \u0111\u1ed9 b\u1ecb k\u1eb9t \u1edf 100 Mbps<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u1ea5n \u0111\u1ec1 hi\u1ec7u n\u0103ng ph\u1ed5 bi\u1ebfn l\u00e0 module th\u01b0\u01a1ng l\u01b0\u1ee3ng \u1edf t\u1ed1c \u0111\u1ed9 100 Mbps thay v\u00ec 1 Gbps, ngay c\u1ea3 khi k\u1ef3 v\u1ecdng \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 Gigabit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c nguy\u00ean nh\u00e2n kh\u1ea3 d\u0129:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p ho\u1eb7c l\u1ed7i trong d\u00e2y d\u1eabn b\u00ean trong<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea7u n\u1ed1i RJ45 thi c\u00f4ng k\u00e9m ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng<\/p><\/li>\n\n\n\n<li><p>T\u1ef1 \u0111\u1ed9ng chuy\u1ec3n xu\u1ed1ng m\u1ee9c th\u1ea5p h\u01a1n do suy gi\u1ea3m t\u00edn hi\u1ec7u<\/p><\/li>\n\n\n\n<li><p>Switch ho\u1eb7c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i b\u1ecb \u00e9p \u1edf ch\u1ebf \u0111\u1ed9 Fast Ethernet<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec1 xu\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thay b\u1eb1ng c\u00e1p Cat6 ho\u1eb7c c\u00e1p c\u00f3 c\u1ea5p \u0111\u1ed9 cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>X\u00e1c minh c\u1ea3 hai \u0111\u1ea7u \u0111\u1ec1u h\u1ed7 tr\u1ee3 <a href=\"https:\/\/www.l-p.com\/products\/476772.htm\" target=\"_self\">1000BASE-T<\/a> duplex \u0111\u1ea7y \u0111\u1ee7<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra c\u1ea5u h\u00ecnh c\u1ed5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e0i \u0111\u1eb7t t\u1ed1c \u0111\u1ed9 b\u1ecb \u00e9p<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra module tr\u00ean c\u1ed5ng switch kh\u00e1c \u0111\u1ec3 c\u00f4 l\u1eadp v\u1ea5n \u0111\u1ec1<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, v\u1ea5n \u0111\u1ec1 n\u00e0y li\u00ean quan \u0111\u1ebfn c\u00e1p ch\u1ee9 kh\u00f4ng ph\u1ea3i do module SFP.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khuy\u1ebfn ngh\u1ecb v\u1ec1 l\u00e0m m\u00e1t v\u00e0 th\u00f4ng gi\u00f3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c module SFP \u0111\u1ed3ng t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t h\u01a1n so v\u1edbi quang h\u1ecdc, vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Tr\u00e1nh l\u1eafp \u0111\u1eb7t nhi\u1ec1u module SFP RJ45 li\u1ec1n k\u1ec1 nhau<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o lu\u1ed3ng kh\u00ed l\u01b0u th\u00f4ng h\u1ee3p l\u00fd b\u00ean trong khung v\u1ecf switch<\/p><\/li>\n\n\n\n<li><p>Duy tr\u00ec c\u00e1c \u0111\u01b0\u1eddng th\u00f4ng gi\u00f3 s\u1ea1ch v\u00e0 kh\u00f4ng b\u1ecb c\u1ea3n tr\u1edf<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng switch c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ch\u1ee7 \u0111\u1ed9ng cho c\u00e1c tri\u1ec3n khai m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 switch trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eadn \u0111\u1ecbnh k\u1ef9 thu\u1eadt:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i module SFP 1000BASE-T ch\u1ee9a chip PHY ch\u1ee7 \u0111\u1ed9ng li\u00ean t\u1ee5c x\u1eed l\u00fd t\u00edn hi\u1ec7u Ethernet, d\u1eabn \u0111\u1ebfn m\u1ee9c ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t cao h\u01a1n v\u00e0 t\u00edch t\u1ee5 nhi\u1ec7t c\u1ee5c b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 SFP 1000BASE-T kh\u00f4ng xu\u1ea5t ph\u00e1t t\u1eeb l\u1ed7i module, m\u00e0 thay v\u00e0o \u0111\u00f3 b\u1eaft ngu\u1ed3n t\u1eeb:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf t\u01b0\u01a1ng th\u00edch (kh\u00f3a nh\u00e0 cung c\u1ea5p)<\/p><\/li>\n\n\n\n<li><p>Gi\u1edbi h\u1ea1n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p<\/p><\/li>\n\n\n\n<li><p>Gi\u1edbi h\u1ea1n nhi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>Sai l\u1ec7ch trong qu\u00e1 tr\u00ecnh t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch tri\u1ec3n khai \u0111\u00fang c\u00e1ch v\u00e0 l\u1ef1a ch\u1ecdn module ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh d\u00e0i h\u1ea1n trong m\u1ea1ng doanh nghi\u1ec7p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 C\u00e1ch ch\u1ecdn module SFP 10\/100\/1000BASE-T \u0111\u00e1ng tin c\u1eady<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn module SFP 10\/100\/1000BASE-T ch\u1ea5t l\u01b0\u1ee3ng cao (SFP \u0111\u1ed3ng RJ45) l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 tin c\u1eady d\u00e0i h\u1ea1n v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch tr\u00ean nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng m\u1ea1ng kh\u00e1c nhau. Kh\u00e1c v\u1edbi c\u00e1c module SFP s\u1ee3i quang, c\u00e1c module SFP \u0111\u1ed3ng t\u00edch h\u1ee3p \u0111\u1ea7y \u0111\u1ee7 chipset PHY v\u00e0 nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng thi\u1ebft k\u1ebf, hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t c\u0169ng nh\u01b0 t\u00ednh t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p.<\/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\/ce755358a1294918a36972baf6db3e8f.jpg\" alt=\"How to Choose a Reliable 10\/100\/1000BASE-T SFP\" class=\"wp-image-2500\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ce755358a1294918a36972baf6db3e8f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ce755358a1294918a36972baf6db3e8f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ce755358a1294918a36972baf6db3e8f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ce755358a1294918a36972baf6db3e8f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ce755358a1294918a36972baf6db3e8f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u1ea5t l\u01b0\u1ee3ng chipset<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chipset PHY Ethernet b\u00ean trong l\u00e0 l\u00f5i c\u1ee7a module SFP \u0111\u1ed3ng v\u00e0 tr\u1ef1c ti\u1ebfp quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ec sao ch\u1ea5t l\u01b0\u1ee3ng chipset l\u1ea1i quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ec3m so\u00e1t \u0111\u1ed9 ch\u00ednh x\u00e1c trong m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u<\/p><\/li>\n\n\n\n<li><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a qu\u00e1 tr\u00ecnh t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng (10\/100\/1000 Mbps)<\/p><\/li>\n\n\n\n<li><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tr\u1ec5 v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a g\u00f3i tin<\/p><\/li>\n\n\n\n<li><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t sinh ra<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1ee3i \u00edch t\u1eeb chipset ch\u1ea5t l\u01b0\u1ee3ng cao:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Hi\u1ec7u n\u0103ng k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh h\u01a1n d\u01b0\u1edbi t\u1ea3i cao<\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch t\u1ed1t h\u01a1n v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u switch kh\u00e1c nhau<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m t\u1ef7 l\u1ec7 m\u1ea5t g\u00f3i trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u<\/p><\/li>\n\n\n\n<li><p>T\u1ef7 l\u1ec7 l\u1ed7i th\u1ea5p h\u01a1n trong v\u1eadn h\u00e0nh d\u00e0i h\u1ea1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tri\u1ec3n khai doanh nghi\u1ec7p, ch\u1ea5t l\u01b0\u1ee3ng chipset th\u01b0\u1eddng l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh ph\u00e2n bi\u1ec7t c\u00e1c module \u1ed5n \u0111\u1ecbnh v\u1edbi nh\u1eefng module kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch tr\u01b0\u1edbc khi tri\u1ec3n khai<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec nhi\u1ec1u <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-network-switch\/\">routers<\/a> \u00e1p d\u1ee5ng c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c b\u1ed9 thu ph\u00e1t nghi\u00eam ng\u1eb7t, vi\u1ec7c ki\u1ec3m tra tr\u01b0\u1edbc khi tri\u1ec3n khai l\u00e0 b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c b\u01b0\u1edbc ki\u1ec3m tra then ch\u1ed1t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c minh vi\u1ec7c nh\u1eadn di\u1ec7n module tr\u00ean m\u1eabu switch \u0111\u00edch<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u1ebft n\u1ed1i d\u01b0\u1edbi t\u1ea3i l\u01b0u l\u01b0\u1ee3ng th\u1ef1c t\u1ebf<\/p><\/li>\n\n\n\n<li><p>X\u00e1c nh\u1eadn kh\u1ea3 n\u0103ng t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng \u1edf t\u1ed1c \u0111\u1ed9 1 Gbps<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra h\u00e0nh vi tr\u00ean nhi\u1ec1u c\u1ed5ng switch kh\u00e1c nhau<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ea1i sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p><\/li>\n\n\n\n<li><p>Ng\u0103n ng\u1eeba gi\u00e1n \u0111o\u1ea1n m\u1ea1ng b\u1ea5t ng\u1edd<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o h\u00e0nh vi nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t module ho\u1ea1t \u0111\u1ed9ng t\u1ed1t tr\u00ean switch n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng v\u1eady tr\u00ean switch kh\u00e1c, ngay c\u1ea3 khi c\u00f9ng m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP \u0111\u1ed3ng sinh nhi\u1ec7t nhi\u1ec1u h\u01a1n c\u00e1c module SFP s\u1ee3i quang do x\u1eed l\u00fd PHY n\u1ed9i b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 t\u1ea3n nhi\u1ec7t quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng (th\u01b0\u1eddng t\u1eeb 1W\u20132,5W+)<\/p><\/li>\n\n\n\n<li><p>Hi\u1ec7u qu\u1ea3 t\u1ea3n nhi\u1ec7t c\u1ee7a v\u1ecf module<\/p><\/li>\n\n\n\n<li><p>\u0110i\u1ec1u ki\u1ec7n lu\u1ed3ng kh\u00ed b\u00ean trong khung switch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng c\u00e1c module c\u00f3 thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t t\u1ed1i \u01b0u<\/p><\/li>\n\n\n\n<li><p>Tr\u00e1nh b\u1ed1 tr\u00ed d\u00e0y \u0111\u1eb7c c\u00e1c <a href=\"https:\/\/www.l-p.com\/products\/476779.htm\" target=\"_self\">module SFP RJ45<\/a><\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o th\u00f4ng gi\u00f3 \u0111\u1ea7y \u0111\u1ee7 cho c\u00f4ng t\u1eafc<\/p><\/li>\n\n\n\n<li><p>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t k\u00e9m c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t \u1ed5n \u0111\u1ecbnh, gi\u1ea3m tu\u1ed5i th\u1ecd ho\u1eb7c l\u1ed7i li\u00ean k\u1ebft ng\u1eaft qu\u00e3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4-\u0111un OEM so v\u1edbi m\u00f4-\u0111un b\u00ean th\u1ee9 ba<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa m\u00f4-\u0111un OEM v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476782.htm\">c\u00e1c m\u00f4-\u0111un SFP b\u00ean th\u1ee9 ba<br><\/a> ph\u1ee5 thu\u1ed9c v\u00e0o ng\u00e2n s\u00e1ch, nhu c\u1ea7u t\u01b0\u01a1ng th\u00edch v\u00e0 quy m\u00f4 tri\u1ec3n khai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4-\u0111un OEM:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c switch c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Chi ph\u00ed cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ea3o h\u00e0nh b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t switch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4-\u0111un b\u00ean th\u1ee9 ba:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n<\/p><\/li>\n\n\n\n<li><p>C\u00f3 s\u1eb5n c\u00e1c t\u00f9y ch\u1ecdn t\u01b0\u01a1ng th\u00edch \u0111a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>C\u00f3 th\u1ec3 y\u00eau c\u1ea7u l\u1eadp tr\u00ecnh (coding) ho\u1eb7c x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai hi\u1ec7n \u0111\u1ea1i, nhi\u1ec1u doanh nghi\u1ec7p s\u1eed d\u1ee5ng m\u00f4-\u0111un b\u00ean th\u1ee9 ba \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng c\u00f9ng v\u1edbi vi\u1ec7c x\u00e1c th\u1ef1c t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u1ea7y \u0111\u1ee7 nh\u1eb1m c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 t\u00ednh linh ho\u1ea1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea7m quan tr\u1ecdng c\u1ee7a h\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh (coding) t\u1eeb nh\u00e0 cung c\u1ea5p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t trong tri\u1ec3n khai th\u1ef1c t\u1ebf l\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00e3 h\u00f3a EEPROM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ea1i sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Switch \u0111\u1ecdc th\u00f4ng tin nh\u1eadn d\u1ea1ng m\u00f4-\u0111un t\u1eeb EEPROM<\/p><\/li>\n\n\n\n<li><p>M\u00e3 h\u00f3a sai c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p><\/li>\n\n\n\n<li><p>Ph\u1ea7n m\u1ec1m\u56fa\u4ef6 \u0111\u1eb7c th\u00f9 c\u1ee7a nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 ch\u1eb7n c\u00e1c m\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Cisco, HP Aruba v\u00e0 c\u00e1c nh\u00e0 cung c\u1ea5p kh\u00e1c th\u01b0\u1eddng y\u00eau c\u1ea7u m\u00e3 h\u00f3a c\u1ee5 th\u1ec3<\/p><\/li>\n\n\n\n<li><p>C\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a cho \u0111a nh\u00e0 cung c\u1ea5p gi\u00fap t\u0103ng t\u00ednh linh ho\u1ea1t khi tri\u1ec3n khai<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c m\u00e3 h\u00f3a \u0111\u00fang \u0111\u1ea3m b\u1ea3o h\u00e0nh vi \u201cc\u1eafm v\u00e0o l\u00e0 ch\u1ea1y\u201d tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ed7 tr\u1ee3 m\u00e3 h\u00f3a t\u1eeb nh\u00e0 cung c\u1ea5p l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch trong m\u00f4i tr\u01b0\u1eddng m\u1ea1ng d\u1ecb c\u1ea5u tr\u00fac.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>G\u00f3c nh\u00ecn k\u1ef9 thu\u1eadt<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 g\u00f3c \u0111\u1ed9 k\u1ef9 thu\u1eadt, hi\u1ec7u n\u0103ng \u0111\u00e1ng tin c\u1eady c\u1ee7a SFP 1000BASE-T ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa ch\u1ea5t l\u01b0\u1ee3ng chipset, thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh\u2014kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 v\u1ec1 h\u00ecnh d\u1ea1ng v\u1eadt l\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p, c\u00e1c tri\u1ec3n khai th\u00e0nh c\u00f4ng nh\u1ea5t th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra chuy\u00ean nghi\u1ec7p d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n t\u1ea3i<\/p><\/li>\n\n\n\n<li><p>\u0110\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng switch<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi ki\u1ebfn tr\u00fac PHY v\u00e0 t\u1ea3n nhi\u1ec7t \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi m\u00e3 h\u00f3a ch\u00ednh x\u00e1c t\u1eeb nh\u00e0 cung c\u1ea5p ho\u1eb7c m\u00e3 h\u00f3a \u0111a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd36 K\u1ebft lu\u1eadn: Li\u1ec7u SFP 10\/100\/1000BASE-T c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi b\u1ea1n?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SFP 10\/100\/1000BASE-T (SFP \u0111\u1ed3ng RJ45) v\u1eabn l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p m\u1ea1ng th\u1ef1c ti\u1ec5n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1ea3i ph\u00e1p thay th\u1ebf ph\u1ed5 qu\u00e1t cho c\u00f4ng ngh\u1ec7 SFP s\u1ee3i quang hay DAC. Gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 n\u1eb1m \u1edf t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf hi\u1ec7u n\u0103ng t\u1ed1i \u0111a hay hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem \u0111\u00e2y c\u00f3 ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho m\u1ea1ng c\u1ee7a b\u1ea1n hay kh\u00f4ng, b\u1ea1n n\u00ean \u0111\u00e1nh gi\u00e1 c\u00e1c y\u00eau c\u1ea7u c\u1ee7a m\u00ecnh d\u1ef1a tr\u00ean quy m\u00f4 tri\u1ec3n khai, k\u1ef3 v\u1ecdng v\u1ec1 hi\u1ec7u n\u0103ng v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<\/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\/a7fd11141d414e5f9ff085601d491d83.jpg\" alt=\"Is 10\/100\/1000BASE-T SFP Right for You?\" class=\"wp-image-2501\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7fd11141d414e5f9ff085601d491d83.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7fd11141d414e5f9ff085601d491d83-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7fd11141d414e5f9ff085601d491d83-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7fd11141d414e5f9ff085601d491d83-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7fd11141d414e5f9ff085601d491d83-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Khung ra quy\u1ebft \u0111\u1ecbnh t\u1ed5ng k\u1ebft<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng khung \u0111\u01a1n gi\u1ea3n sau \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn quy\u1ebft \u0111\u1ecbnh c\u1ee7a b\u1ea1n:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ch\u1ecdn m\u00f4-\u0111un 10\/100\/1000BASE-T SFP n\u1ebfu:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea1n c\u1ea7n k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb k\u1ebf th\u1eeba s\u1eed d\u1ee5ng c\u1ed5ng RJ45<\/p><\/li>\n\n\n\n<li><p>M\u1ea1ng c\u1ee7a b\u1ea1n n\u1eb1m trong gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch ng\u1eafn (\u2264100 m\u00e9t)<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n \u0111ang l\u00e0m vi\u1ec7c trong m\u00f4i tr\u01b0\u1eddng v\u0103n ph\u00f2ng nh\u1ecf ho\u1eb7c t\u1ea1i bi\u00ean m\u1ea1ng<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n y\u00eau c\u1ea7u tri\u1ec3n khai nhanh m\u00e0 kh\u00f4ng c\u1ea7n \u0111i l\u1ea1i c\u00e1p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Tr\u00e1nh s\u1eed d\u1ee5ng m\u00f4-\u0111un SFP \u0111\u1ed3ng n\u1ebfu:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea1n \u0111ang x\u00e2y d\u1ef1ng trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>\u1ee8ng d\u1ee5ng c\u1ee7a b\u1ea1n nh\u1ea1y c\u1ea3m v\u1edbi \u0111\u1ed9 tr\u1ec5 ho\u1eb7c y\u00eau c\u1ea7u hi\u1ec7u n\u0103ng cao<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n c\u1ea7n ki\u1ebfn tr\u00fac l\u00f5i m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch c\u1ee7a b\u1ea1n c\u00f3 gi\u1edbi h\u1ea1n nhi\u1ec7t nghi\u00eam ng\u1eb7t<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eadn \u0111\u1ecbnh k\u1ef9 thu\u1eadt cu\u1ed1i c\u00f9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb g\u00f3c nh\u00ecn thi\u1ebft k\u1ebf m\u1ea1ng th\u1ef1c t\u1ebf, c\u00e1c m\u00f4-\u0111un 10\/100\/1000BASE-T SFP n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f4ng c\u1ee5 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch thay v\u00ec m\u1ed9t th\u00e0nh ph\u1ea7n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ed1t l\u00f5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ph\u00e1t huy hi\u1ec7u qu\u1ea3 nh\u1ea5t khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng chi\u1ebfn l\u01b0\u1ee3c t\u1ea1i bi\u00ean m\u1ea1ng ho\u1eb7c trong c\u00e1c m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n ti\u1ebfp \u2014 ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0m n\u1ec1n t\u1ea3ng cho c\u00e1c ki\u1ebfn tr\u00fac hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c gi\u1ea3i ph\u00e1p m\u00f4-\u0111un SFP \u0111\u1ed3ng \u0111\u00e1ng tin c\u1eady<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u c\u00e1c gi\u1ea3i ph\u00e1p \u1ed5n \u0111\u1ecbnh v\u00e0 t\u01b0\u01a1ng th\u00edch <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476773.htm\">SFP RJ45<\/a> th\u00ec vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c m\u00f4-\u0111un ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi thi\u1ebft k\u1ebf chipset \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m th\u1eed v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111a nh\u00e0 cung c\u1ea5p l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i cho m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Kh\u00e1m ph\u00e1 c\u00e1c b\u1ed9 thu ph\u00e1t quang chuy\u00ean nghi\u1ec7p v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i t\u1ea1i <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a>, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng doanh nghi\u1ec7p v\u1edbi hi\u1ec7u n\u0103ng nh\u1ea5t qu\u00e1n v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u 10\/100\/1000BASE-T SFP l\u00e0 g\u00ec, c\u00e1ch c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng tr\u1ee5c RJ45 ho\u1ea1t \u0111\u1ed9ng, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch, lo ng\u1ea1i v\u1ec1 nhi\u1ec7t v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u trong m\u1ea1ng.<\/p>","protected":false},"author":1,"featured_media":2502,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[20],"class_list":["post-2503","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\/2503","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=2503"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2503\/revisions"}],"predecessor-version":[{"id":10705,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2503\/revisions\/10705"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2502"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}