{"id":3098,"date":"2026-03-10T00:00:00","date_gmt":"2026-03-10T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp-duplex-lc-connector-explained\/"},"modified":"2026-06-22T04:02:52","modified_gmt":"2026-06-22T04:02:52","slug":"sfp-duplex-lc-connector-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-duplex-lc-connector-explained","title":{"rendered":"B\u1ed9 n\u1ed1i \u0111\u1ea7u duplex LC SFP l\u00e0 g\u00ec trong m\u1ea1ng c\u00e1p quang"},"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\/3f12244ca4f74619a827b29503611c64.jpg\" alt=\"SFP Duplex LC Connector\" class=\"wp-image-3089\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f12244ca4f74619a827b29503611c64.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f12244ca4f74619a827b29503611c64-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f12244ca4f74619a827b29503611c64-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f12244ca4f74619a827b29503611c64-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f12244ca4f74619a827b29503611c64-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <strong>B\u1ed9 n\u1ed1i LC duplex SFP<\/strong> l\u00e0 giao di\u1ec7n quang s\u1ee3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u m\u00f4-\u0111un c\u1eafm nh\u1ecf (SFP) <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> \u0111\u1ec3 cho ph\u00e9p truy\u1ec1n th\u00f4ng quang hai chi\u1ec1u \u0111\u1ea7y \u0111\u1ee7. B\u1ed9 n\u1ed1i n\u00e0y t\u00edch h\u1ee3p hai giao di\u1ec7n LC (B\u1ed9 n\u1ed1i Lucent) trong m\u1ed9t v\u1ecf b\u1ecdc nh\u1ecf g\u1ecdn duy nh\u1ea5t, cho ph\u00e9p m\u1ed9t s\u1ee3i quang truy\u1ec1n t\u00edn hi\u1ec7u quang (TX) v\u00e0 s\u1ee3i kia nh\u1eadn t\u00edn hi\u1ec7u (RX). Thi\u1ebft k\u1ebf hai s\u1ee3i n\u00e0y h\u1ed7 tr\u1ee3 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u hai chi\u1ec1u \u0111\u1ed3ng th\u1eddi, \u0111\u00e2y l\u00e0 ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng ti\u00eau chu\u1ea9n cho h\u1ea7u h\u1ebft c\u00e1c li\u00ean k\u1ebft quang Ethernet v\u00e0 vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 n\u1ed1i LC duplex \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\"><strong>SFP<\/strong><\/a><strong>, <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\"><strong>SFP+<\/strong><\/a><strong>, and <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\"><strong>SFP28<\/strong><\/a><strong> module quang<br><\/strong> v\u00ec ch\u00fang mang l\u1ea1i nhi\u1ec1u \u01b0u \u0111i\u1ec3m quan tr\u1ecdng: k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn nh\u1eb1m \u0111\u1ea1t b\u1ed1 tr\u00ed c\u1ed5ng m\u1eadt \u0111\u1ed9 cao, c\u0103n ch\u1ec9nh s\u1ee3i quang ch\u00ednh x\u00e1c nh\u1edd \u0111\u1ea7u n\u1ed1i g\u1ed1m \u0111\u01b0\u1eddng k\u00ednh 1,25 mm, v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u1ea3 h\u1ec7 th\u1ed1ng s\u1ee3i quang \u0111\u01a1n mode (SMF) l\u1eabn \u0111a mode (MMF). Khi c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i ti\u1ebfp t\u1ee5c t\u0103ng m\u1eadt \u0111\u1ed9 c\u1ed5ng trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, d\u1ea1ng th\u1ee9c LC \u0111\u00e3 tr\u1edf th\u00e0nh giao di\u1ec7n quang ch\u1ee7 \u0111\u1ea1o cho nhi\u1ec1u lo\u1ea1i b\u1ed9 thu ph\u00e1t, bao g\u1ed3m c\u00e1c b\u1ed9 thu ph\u00e1t quang Ethernet 1G, 10G v\u00e0 25G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c b\u1ed9 n\u1ed1i LC duplex SFP r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng, chuy\u00ean gia t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng v\u00e0 nh\u00e0 thi\u1ebft k\u1ebf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng. \u0110\u1ed9 ph\u00e2n c\u1ef1c s\u1ee3i quang \u0111\u00fang, thao t\u00e1c x\u1eed l\u00fd b\u1ed9 n\u1ed1i ph\u00f9 h\u1ee3p v\u00e0 s\u1ef1 am hi\u1ec3u r\u00f5 r\u00e0ng v\u1ec1 \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u TX\/RX \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c duy tr\u00ec c\u00e1c li\u00ean k\u1ebft quang \u1ed5n \u0111\u1ecbnh. Ki\u1ebfn th\u1ee9c v\u1eefng ch\u1eafc v\u1ec1 nh\u1eefng nguy\u00ean l\u00fd n\u1ec1n t\u1ea3ng n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o vi\u1ec7c tri\u1ec3n khai \u0111\u00e1ng tin c\u1eady c\u00e1c b\u1ed9 thu ph\u00e1t quang trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng v\u1eadn chuy\u1ec3n vi\u1ec5n th\u00f4ng v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u00f5i doanh nghi\u1ec7p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1eb1ng c\u00e1ch \u0111\u1ecdc b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u \u0111\u01b0\u1ee3c:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 M\u1ed9t b\u1ed9 n\u1ed1i LC duplex l\u00e0 g\u00ec v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a n\u00f3 nh\u01b0 th\u1ebf n\u00e0o <strong>B\u1ed9 n\u1ed1i LC duplex SFP<\/strong> \u2022 C\u00e1ch c\u00e1c b\u1ed9 n\u1ed1i LC duplex ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u00e1c b\u1ed9 thu ph\u00e1t quang<br\/>\u2022 S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa<br\/>b\u1ed9 n\u1ed1i s\u1ee3i quang \u0111\u01a1n mode v\u00e0 duplex <strong>\u2022 V\u00ec sao ph\u1ea7n l\u1edbn c\u00e1c m\u00f4-\u0111un quang SFP s\u1eed d\u1ee5ng<\/strong><br\/>giao di\u1ec7n LC duplex <strong>\u2022 C\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai ph\u1ed5 bi\u1ebfn trong<\/strong><br\/>trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng vi\u1ec5n th\u00f4ng v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng doanh nghi\u1ec7p <strong>\u25b6\ufe0f \u201cDuplex LC\u201d trong l\u0129nh v\u1ef1c quang s\u1ee3i ngh\u0129a l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Trong m\u1ea1ng quang s\u1ee3i, thu\u1eadt ng\u1eef \u201cDuplex LC\u201d m\u00f4 t\u1ea3 m\u1ed9t c\u1ea5u h\u00ecnh b\u1ed9 n\u1ed1i k\u1ebft h\u1ee3p d\u1ea1ng th\u1ee9c b\u1ed9 n\u1ed1i LC v\u1edbi ki\u1ebfn tr\u00fac truy\u1ec1n th\u00f4ng hai s\u1ee3i. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng giao di\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t cho c\u00e1c b\u1ed9 thu ph\u00e1t quang v\u00ec n\u00f3 h\u1ed7 tr\u1ee3 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u hai chi\u1ec1u \u0111\u1ea7y \u0111\u1ee7 \u0111\u00e1ng tin c\u1eady \u2014 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c li\u00ean k\u1ebft Ethernet v\u00e0 vi\u1ec5n th\u00f4ng.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 hi\u1ec3u \u00fd ngh\u0129a c\u1ee7a.<\/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\/a854708d12624062af1c5ceff65b54dc.jpg\" alt=\"What Is an SFP Duplex LC Connector\" class=\"wp-image-3090\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a854708d12624062af1c5ceff65b54dc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a854708d12624062af1c5ceff65b54dc-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a854708d12624062af1c5ceff65b54dc-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a854708d12624062af1c5ceff65b54dc-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a854708d12624062af1c5ceff65b54dc-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">, \u0111i\u1ec1u h\u1eefu \u00edch l\u00e0 xem x\u00e9t ri\u00eang t\u1eebng th\u00e0nh ph\u1ea7n trong thu\u1eadt ng\u1eef n\u00e0y: <em>\u0110\u1ea7u n\u1ed1i LC hai chi\u1ec1u (Duplex LC)<br><\/em>, duplex <strong>LC<\/strong> and <strong>LC: B\u1ed9 n\u1ed1i Lucent<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ed9 n\u1ed1i Lucent<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>LC<\/strong> l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a <strong>, m\u1ed9t b\u1ed9 n\u1ed1i quang s\u1ee3i d\u1ea1ng nh\u1ecf do Lucent Technologies ph\u00e1t tri\u1ec3n ban \u0111\u1ea7u v\u00e0 hi\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n h\u00f3a trong nhi\u1ec1u h\u1ec7 th\u1ed1ng m\u1ea1ng quang.<\/strong>, B\u1ed9 n\u1ed1i LC c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m sau:.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i g\u1ed1m \u0111\u01b0\u1eddng k\u00ednh 1,25 mm<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>A <strong>, gi\u00fap c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c l\u00f5i s\u1ee3i quang<\/strong>, Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn<\/p><\/li><li><p>A <strong>, k\u00edch th\u01b0\u1edbc kho\u1ea3ng b\u1eb1ng m\u1ed9t n\u1eeda b\u1ed9 n\u1ed1i SC c\u0169 h\u01a1n<\/strong>, C\u01a1 ch\u1ebf kh\u00f3a \u0111\u1ea9y \u2013 k\u00e9o<\/p><\/li><li><p>A <strong>\u0111\u1ec3 g\u1eafn ch\u1eafc ch\u1eafn v\u00e0 th\u00e1o r\u1eddi d\u1ec5 d\u00e0ng<\/strong> \u0110\u1ed9 tin c\u1eady cao trong<\/p><\/li><li><p>m\u00f4i tr\u01b0\u1eddng m\u1ea1ng m\u1eadt \u0111\u1ed9 cao <strong>Nh\u1edd k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, b\u1ed9 n\u1ed1i LC cho ph\u00e9p c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb b\u1ed1 tr\u00ed nhi\u1ec1u c\u1ed5ng quang h\u01a1n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 m\u00e1y ch\u1ee7. L\u1ee3i th\u1ebf v\u1ec1 m\u1eadt \u0111\u1ed9 n\u00e0y l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do ch\u00ednh khi\u1ebfn b\u1ed9 n\u1ed1i LC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u00f4-\u0111un quang SFP, SFP+ v\u00e0 SFP28.<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Duplex: Hai s\u1ee3i ho\u1ea1t \u0111\u1ed9ng theo c\u1eb7p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Trong l\u0129nh v\u1ef1c quang s\u1ee3i,<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u1ea5u h\u00ecnh s\u1eed d\u1ee5ng hai s\u1ee3i quang ri\u00eang bi\u1ec7t c\u00f9ng nhau \u0111\u1ec3 h\u1ed7 tr\u1ee3 truy\u1ec1n th\u00f4ng hai chi\u1ec1u., <strong>LC: B\u1ed9 n\u1ed1i Lucent<\/strong> Trong m\u1ed9t li\u00ean k\u1ebft s\u1ee3i quang duplex:.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ee3i mang t\u00edn hi\u1ec7u<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>truy\u1ec1n (TX) <strong>T\u00edn hi\u1ec7u<\/strong> S\u1ee3i c\u00f2n l\u1ea1i mang t\u00edn hi\u1ec7u<\/p><\/li><li><p>nh\u1eadn (RX) <strong>C\u1ea5u h\u00ecnh n\u00e0y cho ph\u00e9p truy\u1ec1n th\u00f4ng hai chi\u1ec1u \u0111\u1ed3ng th\u1eddi, th\u01b0\u1eddng g\u1ecdi l\u00e0 truy\u1ec1n hai chi\u1ec1u \u0111\u1ea7y \u0111\u1ee7 (full-duplex). Ch\u1ebf \u0111\u1ed9 full-duplex l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu trong m\u1ea1ng Ethernet v\u00ec c\u00e1c thi\u1ebft b\u1ecb ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u c\u00f9ng l\u00fac m\u00e0 kh\u00f4ng x\u1ea3y ra va ch\u1ea1m.<\/strong> S\u1ee3i c\u00f2n l\u1ea1i mang t\u00edn hi\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Hai b\u1ed9 n\u1ed1i LC \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i v\u1edbi nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >g\u1ed3m hai b\u1ed9 n\u1ed1i LC \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i b\u1eb1ng m\u1ed9t k\u1eb9p duplex, t\u1ea1o th\u00e0nh m\u1ed9t giao di\u1ec7n gh\u00e9p \u0111\u00f4i duy nh\u1ea5t. M\u1ed7i b\u1ed9 n\u1ed1i k\u1ebft th\u00fac m\u1ed9t s\u1ee3i quang trong c\u00e1p n\u1ed1i duplex.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/common-fiber-connector-types-optical-transceivers\/\"><strong>LC k\u00e9p<\/strong><\/a> Trong c\u00e1c k\u1ebft n\u1ed1i b\u1ed9 thu ph\u00e1t SFP \u0111i\u1ec3n h\u00ecnh:.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ed5ng TX c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y n\u1ed1i v\u1edbi c\u1ed5ng RX c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ed1i di\u1ec7n<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>The <strong>C\u1ed5ng RX n\u1ed1i v\u1edbi c\u1ed5ng TX \u0111\u1ed1i di\u1ec7n<\/strong><\/p><\/li><li><p>The <strong>Vi\u1ec7c k\u1ebft n\u1ed1i ch\u00e9o n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u00edn hi\u1ec7u quang \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb thi\u1ebft b\u1ecb n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb kia nh\u1eadn \u0111\u00fang c\u00e1ch.<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1edfi v\u00ec ki\u1ebfn tr\u00fac n\u00e0y \u0111\u01a1n gi\u1ea3n, ti\u00eau chu\u1ea9n h\u00f3a v\u00e0 c\u1ef1c k\u1ef3 \u0111\u00e1ng tin c\u1eady, n\u00ean c\u00e1c b\u1ed9 n\u1ed1i LC duplex \u0111\u00e3 tr\u1edf th\u00e0nh giao di\u1ec7n quang m\u1eb7c \u0111\u1ecbnh cho h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 thu ph\u00e1t Ethernet 1G, 10G v\u00e0 25G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ng quang hi\u1ec7n \u0111\u1ea1i. <a target=\"\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25832-1-2-4g-transceiver-modules.htm\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a> \u25b6\ufe0f C\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t b\u1ed9 n\u1ed1i LC duplex.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >M\u1ed9t b\u1ed9 n\u1ed1i LC duplex \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">hai b\u1ed9 n\u1ed1i LC \u0111\u01a1n (simplex) <strong>th\u00e0nh m\u1ed9t giao di\u1ec7n gh\u00e9p \u0111\u00f4i duy nh\u1ea5t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng<\/strong> k\u1eb9p duplex <strong>. Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p hai s\u1ee3i quang ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi \u2014 m\u1ed9t s\u1ee3i d\u00f9ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, s\u1ee3i c\u00f2n l\u1ea1i d\u00f9ng \u0111\u1ec3 nh\u1eadn \u2014 trong khi v\u1eabn duy tr\u00ec k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn c\u1ea7n thi\u1ebft cho c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng m\u1eadt \u0111\u1ed9 cao nh\u01b0 b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 b\u1ed9 thu ph\u00e1t quang.<\/strong>. D\u1ea1ng th\u1ee9c b\u1ed9 n\u1ed1i LC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u00f4-\u0111un SFP, SFP+ v\u00e0 c\u00e1c d\u1ea1ng th\u1ee9c nh\u1ecf kh\u00e1c,.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">n\u01a1i vi\u1ec7c c\u0103n ch\u1ec9nh s\u1ee3i quang ch\u00ednh x\u00e1c v\u00e0 k\u1ebft n\u1ed1i c\u01a1 h\u1ecdc \u0111\u00e1ng tin c\u1eady l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 duy tr\u00ec vi\u1ec7c truy\u1ec1n t\u00edn hi\u1ec7u quang \u1ed5n \u0111\u1ecbnh. <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">module quang<br><\/a>, C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a m\u1ed9t b\u1ed9 n\u1ed1i LC duplex.<\/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\/65d51745efe74cc195a873b1547c94e2.jpg\" alt=\"Duplex LC Connector Structure \" class=\"wp-image-3091\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65d51745efe74cc195a873b1547c94e2.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65d51745efe74cc195a873b1547c94e2-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65d51745efe74cc195a873b1547c94e2-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65d51745efe74cc195a873b1547c94e2-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65d51745efe74cc195a873b1547c94e2-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ed9t c\u1ee5m b\u1ed9 n\u1ed1i LC duplex \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m nhi\u1ec1u y\u1ebfu t\u1ed1 c\u01a1 h\u1ecdc v\u00e0 quang h\u1ecdc quan tr\u1ecdng:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t b\u1ed9 n\u1ed1i LC duplex \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n c\u01a1 h\u1ecdc v\u00e0 quang h\u1ecdc quan tr\u1ecdng:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 <strong>\u0110\u1ea7u n\u1ed1i g\u1ed1m 1,25 mm<\/strong><br\/>M\u1ed7i \u0111\u1ea7u n\u1ed1i LC ch\u1ee9a m\u1ed9t b\u1ed9 ph\u1eadn ch\u00ednh x\u00e1c <strong>, gi\u00fap c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c l\u00f5i s\u1ee3i quang<\/strong> gi\u1eef v\u00e0 c\u0103n ch\u1ec9nh s\u1ee3i quang. \u0110\u1ea7u n\u1ed1i \u0111\u1ea3m b\u1ea3o v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a l\u00f5i s\u1ee3i \u0111\u1ec3 \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 truy\u1ec1n hi\u1ec7u qu\u1ea3 gi\u1eefa hai \u0111\u1ea7u n\u1ed1i gh\u00e9p n\u1ed1i v\u1edbi t\u1ed5n hao ch\u00e8n t\u1ed1i thi\u1ec3u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 <strong>V\u1ecf \u1ed1ng c\u0103n ch\u1ec9nh s\u1ee3i<\/strong><br\/>B\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c \u1ed5 c\u1eafm b\u1ed9 thu ph\u00e1t, m\u1ed9t <strong>v\u1ecf \u1ed1ng c\u0103n ch\u1ec9nh<\/strong> d\u1eabn h\u01b0\u1edbng hai \u0111\u1ea7u n\u1ed1i v\u00e0o v\u1ecb tr\u00ed c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c. Th\u00e0nh ph\u1ea7n n\u00e0y gi\u00fap duy tr\u00ec t\u1ed5n hao quang th\u1ea5p v\u00e0 gh\u00e9p n\u1ed1i t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh gi\u1eefa c\u00e1c s\u1ee3i quang \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 <strong>V\u1ecf nh\u1ef1a c\u00f3 c\u01a1 ch\u1ebf kh\u00f3a<\/strong><br\/>Th\u00e2n \u0111\u1ea7u n\u1ed1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u1ef1a b\u1ec1n v\u00e0 bao g\u1ed3m m\u1ed9t <strong>\u0111\u1ec3 g\u1eafn ch\u1eafc ch\u1eafn v\u00e0 th\u00e1o r\u1eddi d\u1ec5 d\u00e0ng<\/strong>. c\u01a1 ch\u1ebf kh\u00f3a. C\u01a1 ch\u1ebf kh\u00f3a n\u00e0y c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn \u0111\u1ea7u n\u1ed1i v\u00e0o c\u1ed5ng trong khi v\u1eabn cho ph\u00e9p thao t\u00e1c c\u1eafm v\u00e0 r\u00fat nhanh trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t ho\u1eb7c b\u1ea3o tr\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 <strong>K\u1eb9p duplex<\/strong><br\/>A <strong>. Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p hai s\u1ee3i quang ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi \u2014 m\u1ed9t s\u1ee3i d\u00f9ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, s\u1ee3i c\u00f2n l\u1ea1i d\u00f9ng \u0111\u1ec3 nh\u1eadn \u2014 trong khi v\u1eabn duy tr\u00ec k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn c\u1ea7n thi\u1ebft cho c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng m\u1eadt \u0111\u1ed9 cao nh\u01b0 b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 b\u1ed9 thu ph\u00e1t quang.<\/strong> gi\u1eef hai \u0111\u1ea7u n\u1ed1i LC s\u00e1t nhau theo chi\u1ec1u song song, t\u1ea1o th\u00e0nh m\u1ed9t c\u1eb7p duplex. K\u1eb9p n\u00e0y duy tr\u00ec kho\u1ea3ng c\u00e1ch v\u00e0 h\u01b0\u1edbng \u0111\u00fang gi\u1eefa s\u1ee3i truy\u1ec1n v\u00e0 s\u1ee3i nh\u1eadn, \u0111\u1ea3m b\u1ea3o c\u1ef1c t\u00ednh nh\u1ea5t qu\u00e1n khi s\u1eed d\u1ee5ng v\u1edbi c\u00e1p n\u1ed1i s\u1ee3i quang duplex.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao c\u1ea5u tr\u00fac n\u00e0y quan tr\u1ecdng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf c\u01a1 h\u1ecdc nh\u1ecf g\u1ecdn c\u1ee7a \u0111\u1ea7u n\u1ed1i LC duplex mang l\u1ea1i nhi\u1ec1u \u01b0u \u0111i\u1ec3m cho m\u1ea1ng quang:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>M\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/strong> trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 thi\u1ebft b\u1ecb trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li><li><p><strong>C\u0103n ch\u1ec9nh s\u1ee3i quang \u0111\u00e1ng tin c\u1eady<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t quang \u1ed5n \u0111\u1ecbnh<\/p><\/li><li><p><strong>L\u1eafp \u0111\u1eb7t v\u00e0 th\u00e1o r\u1eddi d\u1ec5 d\u00e0ng<\/strong> nh\u1edd c\u01a1 ch\u1ebf kh\u00f3a<\/p><\/li><li><p><strong>T\u01b0\u01a1ng th\u00edch chu\u1ea9n h\u00f3a<\/strong> v\u1edbi h\u1ea7u h\u1ebft b\u1ed9 thu ph\u00e1t quang d\u1ef1a tr\u00ean SFP<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac n\u00e0y, \u0111\u1ea7u n\u1ed1i LC duplex \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng giao di\u1ec7n s\u1ee3i quang \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i nh\u1ea5t trong c\u00e1c m\u1ea1ng Ethernet v\u00e0 vi\u1ec5n th\u00f4ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25b6\ufe0f C\u00e1ch \u0111\u1ea7u n\u1ed1i LC duplex ho\u1ea1t \u0111\u1ed9ng trong b\u1ed9 thu ph\u00e1t quang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ea1ng quang, <strong>\u0111\u1ea7u n\u1ed1i LC duplex cho ph\u00e9p truy\u1ec1n th\u00f4ng duplex \u0111\u1ea7y \u0111\u1ee7 gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb b\u1eb1ng c\u00e1ch cung c\u1ea5p c\u00e1c \u0111\u01b0\u1eddng d\u1eabn quang ri\u00eang bi\u1ec7t cho vi\u1ec7c truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u<\/strong>. Ph\u1ea7n l\u1edbn <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476092.htm\">SFP 1G<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475817.htm\">SFP+ 10G<\/a>, and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476090.htm\">SFP28 25G<\/a> m\u00f4-\u0111un \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi giao di\u1ec7n LC duplex \u0111\u1ec3 h\u1ed7 tr\u1ee3 ki\u1ebfn tr\u00fac truy\u1ec1n th\u00f4ng hai s\u1ee3i n\u00e0y.<\/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\/0b79c89ca4aa42159466631c1ac1ca0c.jpg\" alt=\"How Duplex LC Connectors Work in Optical Transceivers\" class=\"wp-image-3092\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0b79c89ca4aa42159466631c1ac1ca0c.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0b79c89ca4aa42159466631c1ac1ca0c-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0b79c89ca4aa42159466631c1ac1ca0c-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0b79c89ca4aa42159466631c1ac1ca0c-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0b79c89ca4aa42159466631c1ac1ca0c-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ean trong b\u1ed9 thu ph\u00e1t quang, \u0111\u1ea7u n\u1ed1i LC duplex k\u1ebft n\u1ed1i m\u00f4-\u0111un v\u1edbi c\u00e1p n\u1ed1i s\u1ee3i quang duplex, v\u1ed1n ch\u1ee9a hai s\u1ee3i quang. M\u1ed7i s\u1ee3i th\u1ef1c hi\u1ec7n m\u1ed9t ch\u1ee9c n\u0103ng ri\u00eang bi\u1ec7t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>S\u1ee3i TX \u2192 Truy\u1ec1n t\u00edn hi\u1ec7u quang<\/strong> t\u1eeb b\u1ed9 thu ph\u00e1t \u0111\u1ebfn thi\u1ebft b\u1ecb xa<\/p><\/li><li><p><strong>S\u1ee3i RX \u2192 Nh\u1eadn t\u00edn hi\u1ec7u quang<\/strong> \u0111\u1ebfn t\u1eeb thi\u1ebft b\u1ecb xa<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u00e1ch ri\u00eang k\u00eanh truy\u1ec1n v\u00e0 k\u00eanh nh\u1eadn cho ph\u00e9p c\u1ea3 hai thi\u1ebft b\u1ecb \u0111\u1ed3ng th\u1eddi g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u, t\u1eeb \u0111\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c truy\u1ec1n th\u00f4ng Ethernet duplex \u0111\u1ea7y \u0111\u1ee7 th\u1ef1c s\u1ef1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u gi\u1eefa hai thi\u1ebft b\u1ecb quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi hai thi\u1ebft b\u1ecb\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-network-switch\/\">routers<\/a> or <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-router-key-functions-types\/\">servers<\/a>\u2014\u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i b\u1eb1ng s\u1ee3i quang LC duplex, c\u00e1c \u0111\u01b0\u1eddng d\u1eabn quang ph\u1ea3i \u0111\u01b0\u1ee3c ch\u00e9o \u0111\u00fang c\u00e1ch \u0111\u1ec3 thi\u1ebft l\u1eadp li\u00ean l\u1ea1c. C\u1ed5ng truy\u1ec1n c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y ph\u1ea3i n\u1ed1i v\u1edbi c\u1ed5ng nh\u1eadn c\u1ee7a thi\u1ebft b\u1ecb kia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u1ed3ng t\u00edn hi\u1ec7u tu\u00e2n theo m\u1eabu sau:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>Thi\u1ebft b\u1ecb A (TX) \u2192 Thi\u1ebft b\u1ecb B (RX)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c k\u1ebft n\u1ed1i ch\u00e9o n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u00edn hi\u1ec7u quang do m\u1ed9t b\u1ed9 thu ph\u00e1t t\u1ea1o ra s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a t\u1edbi b\u1ed9 thu c\u1ee7a b\u1ed9 thu ph\u00e1t \u0111\u1ed1i di\u1ec7n. Trong h\u1ea7u h\u1ebft c\u00e1c tri\u1ec3n khai, c\u00e1p n\u1ed1i s\u1ee3i quang duplex \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t s\u1eb5n v\u1edbi c\u1ef1c t\u00ednh ph\u00f9 h\u1ee3p \u0111\u1ec3 k\u1ebft n\u1ed1i n\u00e0y t\u1ef1 \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng khi c\u1ea3 hai \u0111\u1ea7u n\u1ed1i \u0111\u1ec1u \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Truy\u1ec1n d\u1eabn quang b\u00ean trong b\u1ed9 thu ph\u00e1t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ean trong m\u00f4-\u0111un SFP ho\u1eb7c <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477532.htm\">m\u00f4-\u0111un SFP+<\/a> , qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u quang di\u1ec5n ra theo hai h\u01b0\u1edbng:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1eeb \u0111i\u1ec7n sang quang (\u0111\u01b0\u1eddng truy\u1ec1n)<\/strong><br\/><br\/>D\u1eef li\u1ec7u m\u1ea1ng \u0111i v\u00e0o b\u1ed9 thu ph\u00e1t d\u01b0\u1edbi d\u1ea1ng t\u00edn hi\u1ec7u \u0111i\u1ec7n. M\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/laser-types-in-optical-transceiver-modules\/\"><strong>\u0111i-\u1ed1t laser<\/strong><\/a> ngu\u1ed3n ph\u00e1t quang (v\u00ed d\u1ee5 nh\u01b0 laser VCSEL cho quang \u0111a mode ho\u1eb7c laser DFB cho quang \u0111\u01a1n mode) chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh \u00e1nh s\u00e1ng \u0111i\u1ec1u ch\u1ebf, sau \u0111\u00f3 \u0111\u01b0a \u00e1nh s\u00e1ng n\u00e0y v\u00e0o s\u1ee3i TX th\u00f4ng qua \u0111\u1ea7u n\u1ed1i LC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1eeb quang sang \u0111i\u1ec7n (\u0111\u01b0\u1eddng nh\u1eadn)<\/strong><br\/><br\/>\u00c1nh s\u00e1ng \u0111\u1ebfn t\u1eeb thi\u1ebft b\u1ecb xa \u0111i qua <strong>s\u1ee3i RX<\/strong> v\u00e0o b\u1ed9 thu ph\u00e1t, n\u01a1i m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/pin-apd-photodiode-technologies-applications\/\"><strong>\u0111i-\u1ed1t quang<\/strong><\/a> ph\u00e1t hi\u1ec7n t\u00edn hi\u1ec7u quang v\u00e0 chuy\u1ec3n \u0111\u1ed5i l\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n cho thi\u1ebft b\u1ecb m\u1ea1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao \u0111\u1ea7u n\u1ed1i LC duplex l\u00fd t\u01b0\u1edfng cho b\u1ed9 thu ph\u00e1t SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Giao di\u1ec7n LC duplex \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong b\u1ed9 thu ph\u00e1t quang v\u00ec n\u00f3 cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u00edch th\u01b0\u1edbc \u0111\u1ea7u n\u1ed1i nh\u1ecf g\u1ecdn<\/strong>, cho ph\u00e9p m\u1eadt \u0111\u1ed9 c\u1ed5ng cao tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/p><\/li><li><p><strong>C\u0103n ch\u1ec9nh s\u1ee3i quang \u0111\u00e1ng tin c\u1eady<\/strong>, \u0111\u1ea3m b\u1ea3o gh\u00e9p n\u1ed1i quang \u1ed5n \u0111\u1ecbnh<\/p><\/li><li><p><strong>T\u01b0\u01a1ng th\u00edch chu\u1ea9n h\u00f3a<\/strong> v\u1edbi c\u00e1p n\u1ed1i s\u1ee3i quang Ethernet<\/p><\/li><li><p><strong>H\u1ed7 tr\u1ee3 c\u1ea3 m\u00f4-\u0111un quang \u0111\u01a1n mode v\u00e0 \u0111a mode<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec nh\u1eefng l\u00fd do n\u00e0y, \u0111\u1ea7u n\u1ed1i LC duplex \u0111\u00e3 tr\u1edf th\u00e0nh giao di\u1ec7n ti\u00eau chu\u1ea9n cho h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 thu ph\u00e1t quang SFP d\u00f9ng trong m\u1ea1ng s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i \u1edf t\u1ed1c \u0111\u1ed9 1G, 10G v\u00e0 25G.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25b6\ufe0f So s\u00e1nh \u0111\u1ea7u n\u1ed1i LC duplex v\u00e0 \u0111\u1ea7u n\u1ed1i s\u1ee3i quang simplex<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong k\u1ebft n\u1ed1i s\u1ee3i quang, <strong>\u0111\u1ea7u n\u1ed1i LC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh d\u01b0\u1edbi d\u1ea1ng duplex ho\u1eb7c simplex<\/strong>, t\u00f9y thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n t\u00edn hi\u1ec7u. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa hai c\u1ea5u h\u00ecnh n\u00e0y r\u1ea5t quan tr\u1ecdng khi l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t quang v\u00e0 c\u00e1p n\u1ed1i s\u1ee3i quang cho m\u1ed9t tri\u1ec3n khai m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>LC k\u00e9p<\/strong> s\u1eed d\u1ee5ng hai s\u1ee3i \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n v\u00e0 nh\u1eadn ri\u00eang bi\u1ec7t, \u0111\u00e2y l\u00e0 ki\u1ebfn tr\u00fac ti\u00eau chu\u1ea9n cho h\u1ea7u h\u1ebft c\u00e1c li\u00ean k\u1ebft quang Ethernet. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ed9t <strong>\u0111\u1ea7u n\u1ed1i LC simplex<\/strong> s\u1eed d\u1ee5ng m\u1ed9t s\u1ee3i duy nh\u1ea5t v\u00e0 d\u1ef1a v\u00e0o c\u00f4ng ngh\u1ec7 ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng \u0111\u1ec3 x\u1eed l\u00fd truy\u1ec1n th\u00f4ng hai chi\u1ec1u.<\/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\/385d867912494bb49c34af69feb64206.jpg\" alt=\"Duplex LC vs. Simplex Fiber Connectors\" class=\"wp-image-3093\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/385d867912494bb49c34af69feb64206.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/385d867912494bb49c34af69feb64206-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/385d867912494bb49c34af69feb64206-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/385d867912494bb49c34af69feb64206-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/385d867912494bb49c34af69feb64206-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa LC duplex v\u00e0 LC simplex<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>LC Duplex<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>LC \u0111\u01a1n h\u01b0\u1edbng<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>S\u1ed1 s\u1ee3i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 s\u1ee3i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 s\u1ee3i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>K\u00eanh TX \/ RX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Hai s\u1ee3i ri\u00eang bi\u1ec7t cho truy\u1ec1n v\u00e0 nh\u1eadn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>D\u00f9ng chung m\u1ed9t s\u1ee3i v\u1edbi c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4-\u0111un \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4-\u0111un SFP \/ SFP+ \/ SFP28 ti\u00eau chu\u1ea9n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-27039-1g-bidi-sfp.htm\">BiDi<br><\/a> M\u00f4-\u0111un SFP (hai chi\u1ec1u)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng Ethernet v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/wdm-optical-transceiver-module-applications\/\">WDM<\/a> ho\u1eb7c m\u00f4i tr\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi s\u1ee3i quang<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa truy\u1ec1n th\u00f4ng duplex v\u00e0 simplex<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ed9t <strong>c\u1ea5u h\u00ecnh LC duplex<\/strong>, hai s\u1ee3i quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>truy\u1ec1n (TX) <strong>T\u00edn hi\u1ec7u<\/strong> S\u1ee3i c\u00f2n l\u1ea1i mang t\u00edn hi\u1ec7u<\/p><\/li><li><p>nh\u1eadn (RX) <strong>C\u1ea5u h\u00ecnh n\u00e0y cho ph\u00e9p truy\u1ec1n th\u00f4ng hai chi\u1ec1u \u0111\u1ed3ng th\u1eddi, th\u01b0\u1eddng g\u1ecdi l\u00e0 truy\u1ec1n hai chi\u1ec1u \u0111\u1ea7y \u0111\u1ee7 (full-duplex). Ch\u1ebf \u0111\u1ed9 full-duplex l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu trong m\u1ea1ng Ethernet v\u00ec c\u00e1c thi\u1ebft b\u1ecb ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u c\u00f9ng l\u00fac m\u00e0 kh\u00f4ng x\u1ea3y ra va ch\u1ea1m.<\/strong> S\u1ee3i c\u00f2n l\u1ea1i mang t\u00edn hi\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf n\u00e0y cung c\u1ea5p m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng duplex \u0111\u1ea7y \u0111\u1ee7 \u0111\u01a1n gi\u1ea3n v\u00e0 c\u1ef1c k\u1ef3 \u0111\u00e1ng tin c\u1eady, v\u00ec v\u1eady n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ti\u00eau chu\u1ea9n Ethernet nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482144.htm\">C\u00e1c h\u1ea1n ch\u1ebf m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c xem x\u00e9t n\u1ebfu s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476059.htm\">10GBASE-SR<\/a>, and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\">10GBASE-LR<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>c\u1ea5u h\u00ecnh LC simplex<\/strong>, m\u1eb7t kh\u00e1c, ch\u1ec9 s\u1eed d\u1ee5ng m\u1ed9t s\u1ee3i quang. \u0110\u1ec3 cho ph\u00e9p truy\u1ec1n th\u00f4ng hai chi\u1ec1u tr\u00ean s\u1ee3i quang duy nh\u1ea5t \u0111\u00f3, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482785.htm\"><strong>b\u1ed9 thu ph\u00e1t quang BiDi <\/strong><\/a>truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u \u1edf c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau. V\u00ed d\u1ee5, m\u1ed9t ph\u00eda c\u00f3 th\u1ec3 truy\u1ec1n \u1edf 1310 nm v\u00e0 nh\u1eadn \u1edf 1550 nm, trong khi ph\u00eda \u0111\u1ed1i di\u1ec7n s\u1eed d\u1ee5ng c\u00e1c b\u01b0\u1edbc s\u00f3ng ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i \u0111\u1ea7u n\u1ed1i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i LC duplex th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 vi\u1ec7c cung c\u1ea5p s\u1ee3i quang kh\u00f4ng b\u1ecb r\u00e0ng bu\u1ed9c v\u00e0 y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1i \u0111a v\u1edbi c\u00e1c thi\u1ebft b\u1ecb quang h\u1ecdc Ethernet ti\u00eau chu\u1ea9n. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Li\u00ean k\u1ebft n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li><li><p>M\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p<\/p><\/li><li><p>Li\u00ean k\u1ebft s\u1ee3i quang gi\u1eefa c\u00e1c switch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i LC simplex \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn h\u01a1n khi ngu\u1ed3n t\u00e0i nguy\u00ean s\u1ee3i quang b\u1ecb h\u1ea1n ch\u1ebf, ch\u1eb3ng h\u1ea1n nh\u01b0 trong c\u00e1c m\u1ea1ng truy c\u1eadp kho\u1ea3ng c\u00e1ch xa ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang hi\u1ec7n h\u1eefu, n\u01a1i vi\u1ec7c l\u1eafp \u0111\u1eb7t th\u00eam s\u1ee3i quang l\u00e0 kh\u00f3 kh\u0103n ho\u1eb7c t\u1ed1n k\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng quang hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 SFP v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476064.htm\">b\u1ed9 chuy\u1ec3n \u0111\u1ed5i SFP+<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng Ethernet, \u0111\u1ea7u n\u1ed1i LC duplex v\u1eabn l\u00e0 giao di\u1ec7n ph\u1ed5 bi\u1ebfn v\u00e0 ti\u00eau chu\u1ea9n nh\u1ea5t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25b6\ufe0f So s\u00e1nh \u0111\u1ea7u n\u1ed1i LC, SC v\u00e0 MPO<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ng s\u1ee3i quang s\u1eed d\u1ee5ng nhi\u1ec1u lo\u1ea1i \u0111\u1ea7u n\u1ed1i kh\u00e1c nhau, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t, m\u1eadt \u0111\u1ed9 c\u1ed5ng v\u00e0 ki\u1ebfn tr\u00fac truy\u1ec1n d\u1eabn kh\u00e1c nhau. Trong s\u1ed1 \u0111\u00f3, <strong>\u0111\u1ea7u n\u1ed1i LC, SC v\u00e0 MPO (ho\u1eb7c MTP)<\/strong> l\u00e0 nh\u1eefng lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t trong thi\u1ebft b\u1ecb m\u1ea1ng hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c lo\u1ea1i \u0111\u1ea7u n\u1ed1i n\u00e0y gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng l\u1ef1a ch\u1ecdn giao di\u1ec7n ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 nh\u01b0 b\u1ed9 thu ph\u00e1t quang SFP, c\u00e1p trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao ho\u1eb7c h\u1ec7 th\u1ed1ng vi\u1ec5n th\u00f4ng k\u1ebf th\u1eeba.<\/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\/3ad39d078d3747a8a2c1faf0fa102912.jpg\" alt=\"LC vs. SC vs. MPO Connectors\" class=\"wp-image-3094\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3ad39d078d3747a8a2c1faf0fa102912.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3ad39d078d3747a8a2c1faf0fa102912-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3ad39d078d3747a8a2c1faf0fa102912-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3ad39d078d3747a8a2c1faf0fa102912-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3ad39d078d3747a8a2c1faf0fa102912-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea3ng so s\u00e1nh c\u00e1c lo\u1ea1i \u0111\u1ea7u n\u1ed1i s\u1ee3i quang ph\u1ed5 bi\u1ebfn<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ea7u n\u1ed1i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ed1 s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>LC<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 (Duplex)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 thu ph\u00e1t quang SFP \/ SFP+ \/ SFP28<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>SC<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 ho\u1eb7c 2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ec7 th\u1ed1ng s\u1ee3i quang vi\u1ec5n th\u00f4ng v\u00e0 doanh nghi\u1ec7p k\u1ebf th\u1eeba<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>MPO \/ MTP<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>8 \/ 12 \/ 24 (ho\u1eb7c nhi\u1ec1u h\u01a1n)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Quang h\u1ecdc song song t\u1ed1c \u0111\u1ed9 cao nh\u01b0 40G v\u00e0 100G<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ea7u n\u1ed1i LC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>\u0110\u1ea7u n\u1ed1i LC<\/strong> l\u00e0 m\u1ed9t \u0111\u1ea7u n\u1ed1i d\u1ea1ng form-factor nh\u1ecf s\u1eed d\u1ee5ng <strong>l\u00f5i ferrule 1,25 mm<\/strong> v\u00e0 c\u01a1 ch\u1ebf kh\u00f3a \u0111\u1ea9y \u2013 k\u00e9o. K\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn c\u1ee7a n\u00f3 cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng h\u1ed7 tr\u1ee3 m\u1eadt \u0111\u1ed9 c\u1ed5ng quang cao \u2014 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c switch v\u00e0 router hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y, \u0111\u1ea7u n\u1ed1i LC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i c\u00f9ng c\u00e1c module quang d\u1ef1a tr\u00ean SFP, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP 1G (1000BASE-SX \/ LX)<\/p><\/li><li><p>SFP+ 10G (10GBASE-SR \/ LR \/ ER)<\/p><\/li><li><p>B\u1ed9 thu ph\u00e1t SFP28 25G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn c\u00e1c module n\u00e0y s\u1eed d\u1ee5ng giao di\u1ec7n LC duplex \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c s\u1ee3i quang ri\u00eang bi\u1ec7t cho ch\u1ee9c n\u0103ng truy\u1ec1n v\u00e0 nh\u1eadn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ea7u n\u1ed1i SC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>\u0110\u1ea7u n\u1ed1i SC<\/strong> (Subscriber Connector ho\u1eb7c Square Connector) l\u00e0 m\u1ed9t giao di\u1ec7n s\u1ee3i quang c\u0169 h\u01a1n nh\u01b0ng v\u1eabn \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i. N\u00f3 s\u1eed d\u1ee5ng <strong>l\u00f5i ferrule 2,5 mm<\/strong>, khi\u1ebfn n\u00f3 l\u1edbn h\u01a1n \u0111\u1ea7u n\u1ed1i LC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i SC th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft b\u1ecb vi\u1ec5n th\u00f4ng k\u1ebf th\u1eeba<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/passive-optical-networks-what-they-are-and-how-they-work\/\">C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng quang th\u1ee5 \u0111\u1ed9ng<\/a> (PON)<\/p><\/li><li><p>C\u00e1c h\u1ec7 th\u1ed1ng s\u1ee3i quang doanh nghi\u1ec7p c\u0169<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 \u0111\u1ea7u n\u1ed1i SC cung c\u1ea5p hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady, k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n c\u1ee7a n\u00f3 khi\u1ebfn n\u00f3 \u00edt ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c c\u1ed5ng switch m\u1eadt \u0111\u1ed9 cao \u2014 \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do th\u00fac \u0111\u1ea9y xu h\u01b0\u1edbng chuy\u1ec3n \u0111\u1ed5i r\u1ed9ng r\u00e3i sang \u0111\u1ea7u n\u1ed1i LC trong thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ea7u n\u1ed1i MPO \/ MTP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>MPO (\u0110\u1ea9y v\u00e0o \u0111a s\u1ee3i)<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho <strong>truy\u1ec1n d\u1eabn s\u1ee3i quang song song<\/strong>, trong \u0111\u00f3 nhi\u1ec1u s\u1ee3i quang \u0111\u01b0\u1ee3c b\u00f3 chung trong m\u1ed9t \u0111\u1ea7u n\u1ed1i duy nh\u1ea5t. \u0110\u1ea7u n\u1ed1i MPO th\u01b0\u1eddng h\u1ed7 tr\u1ee3 <strong>8, 12, 24 ho\u1eb7c nhi\u1ec1u h\u01a1n s\u1ee3i quang<\/strong> trong m\u1ed9t giao di\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1ea7u n\u1ed1i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao y\u00eau c\u1ea7u truy\u1ec1n d\u1eabn quang song song, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ethernet 40G (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491627.htm\">40GBASE-SR4<\/a>)<\/p><\/li><li><p>Ethernet 100G (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/473116.htm\">100GBASE-SR4<\/a> \/ SR10)<\/p><\/li><li><p>C\u00e1p trunk s\u1ee3i quang m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">MTP l\u00e0 m\u1ed9t phi\u00ean b\u1ea3n MPO hi\u1ec7u su\u1ea5t cao, c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u0103n ch\u1ec9nh c\u01a1 h\u1ecdc v\u00e0 hi\u1ec7u su\u1ea5t quang h\u1ecdc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao \u0111\u1ea7u n\u1ed1i LC l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t cho b\u1ed9 thu ph\u00e1t SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong s\u1ed1 c\u00e1c lo\u1ea1i \u0111\u1ea7u n\u1ed1i n\u00e0y, \u0111\u1ea7u n\u1ed1i LC cung c\u1ea5p s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1i \u01b0u gi\u1eefa k\u00edch th\u01b0\u1edbc, hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch. Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn c\u1ee7a n\u00f3 cho ph\u00e9p nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb t\u1ed1i \u0111a h\u00f3a m\u1eadt \u0111\u1ed9 c\u1ed5ng \u0111\u1ed3ng th\u1eddi duy tr\u00ec \u0111\u1ed9 c\u0103n ch\u1ec9nh quang h\u1ecdc \u0111\u00e1ng tin c\u1eady v\u00e0 t\u1ed5n hao ch\u00e8n th\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, \u0111\u1ea7u n\u1ed1i LC duplex \u0111\u00e3 tr\u1edf th\u00e0nh giao di\u1ec7n ti\u00eau chu\u1ea9n cho ph\u1ea7n l\u1edbn b\u1ed9 thu ph\u00e1t quang SFP v\u00e0 SFP+ \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25b6\ufe0f C\u00e1c lo\u1ea1i s\u1ee3i quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi \u0111\u1ea7u n\u1ed1i LC duplex SFP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i LC duplex t\u01b0\u01a1ng th\u00edch v\u1edbi c\u1ea3 <strong>s\u1ee3i quang \u0111a mode (MMF)<\/strong> and <strong>v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/strong> Vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i s\u1ee3i quang ch\u1ee7 y\u1ebfu ph\u1ee5 thu\u1ed9c v\u00e0o kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn y\u00eau c\u1ea7u, ki\u1ebfn tr\u00fac m\u1ea1ng v\u00e0 ti\u00eau chu\u1ea9n b\u1ed9 thu ph\u00e1t quang \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng quang Ethernet, nhi\u1ec1u <strong>b\u1ed9 thu ph\u00e1t SFP, SFP+ v\u00e0 SFP28<\/strong> s\u1eed d\u1ee5ng giao di\u1ec7n LC duplex b\u1ea5t k\u1ec3 module \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho s\u1ee3i quang \u0111a mode hay \u0111\u01a1n mode. \u0110\u1ecbnh d\u1ea1ng \u0111\u1ea7u n\u1ed1i v\u1eabn gi\u1eef nguy\u00ean, trong khi c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc v\u00e0 b\u01b0\u1edbc s\u00f3ng b\u00ean trong b\u1ed9 thu ph\u00e1t x\u00e1c \u0111\u1ecbnh lo\u1ea1i s\u1ee3i quang v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/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\/3c80a296dd8f4e2bb30978593b384fcc.jpg\" alt=\"Fiber Types Used with SFP Duplex LC Connectors\" class=\"wp-image-3095\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c80a296dd8f4e2bb30978593b384fcc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c80a296dd8f4e2bb30978593b384fcc-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c80a296dd8f4e2bb30978593b384fcc-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c80a296dd8f4e2bb30978593b384fcc-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c80a296dd8f4e2bb30978593b384fcc-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1p quang \u0111a mode (MMF)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Direct Attach Copper (DAC)<\/strong> th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u1ebfn trung b\u00ecnh trong t\u00f2a nh\u00e0, khu\u00f4n vi\u00ean v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u. N\u00f3 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u00f5i l\u1edbn h\u01a1n (th\u00f4ng th\u01b0\u1eddng l\u00e0 <strong>50 \u00b5m ho\u1eb7c 62,5 \u00b5m<\/strong>), cho ph\u00e9p nhi\u1ec1u \u0111\u01b0\u1eddng truy\u1ec1n \u00e1nh s\u00e1ng, l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng cao tr\u00ean kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492180.htm\">B\u1ed9 thu ph\u00e1t quang \u0111a mode<\/a> th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng <strong>850 nm<\/strong> v\u00e0 th\u01b0\u1eddng s\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\"><strong>Laser VCSEL.<\/strong><\/a><strong> (Laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t khoang d\u1ecdc)<\/strong> c\u00f4ng ngh\u1ec7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un quang Ethernet ph\u1ed5 bi\u1ebfn s\u1eed d\u1ee5ng <strong>\u0111\u1ea7u n\u1ed1i LC duplex v\u1edbi s\u1ee3i quang \u0111a mode<\/strong> include:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau chu\u1ea9n quang h\u1ecdc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c h\u1ea1n ch\u1ebf m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c xem x\u00e9t n\u1ebfu s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 550 m (OM2)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Direct Attach Copper (DAC)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-SR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 300 m (OM3) \/ 400 m (OM4)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Direct Attach Copper (DAC)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476708.htm\">25GBASE-LR<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 70 m (OM3) \/ 100 m (OM4)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Direct Attach Copper (DAC)<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Do hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 hi\u1ec7u n\u0103ng b\u0103ng th\u00f4ng cao tr\u00ean kho\u1ea3ng c\u00e1ch ng\u1eafn, s\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1p quang \u0111\u01a1n mode (SMF)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What Does SFP Stand For?<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho vi\u1ec7c truy\u1ec1n d\u1eabn quang tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n. N\u00f3 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u00f5i nh\u1ecf h\u01a1n nhi\u1ec1u, th\u01b0\u1eddng kho\u1ea3ng <strong>9 \u00b5m<\/strong>, cho ph\u00e9p \u00e1nh s\u00e1ng lan truy\u1ec1n theo m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn quang duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m s\u1ef1 t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 v\u00e0 cho ph\u00e9p truy\u1ec1n th\u00f4ng tin \u0111\u00e1ng tin c\u1eady tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492324.htm\">B\u1ed9 thu ph\u00e1t quang \u0111\u01a1n mode<\/a> th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf <strong>b\u01b0\u1edbc s\u00f3ng 1310 nm ho\u1eb7c 1550 nm<\/strong> v\u00e0 th\u01b0\u1eddng s\u1eed d\u1ee5ng <strong>laser ph\u1ea3n h\u1ed3i ph\u00e2n b\u1ed1 (DFB)<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eabn \u1ed5n \u0111\u1ecbnh tr\u00ean kho\u1ea3ng c\u00e1ch xa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un quang Ethernet ph\u1ed5 bi\u1ebfn s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i LC duplex v\u1edbi s\u1ee3i quang \u0111\u01a1n mode bao g\u1ed3m:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau chu\u1ea9n quang h\u1ecdc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">1000BASE-LX<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ebfn 10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>What Does SFP Stand For?<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-LR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ebfn 10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>What Does SFP Stand For?<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476215.htm\">10GBASE-ER<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 40 km<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>What Does SFP Stand For?<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111\u01a1n mode th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c m\u1ea1ng vi\u1ec5n th\u00f4ng, m\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i, n\u01a1i y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng ph\u1ea1m vi v\u00e0 truy\u1ec1n t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao \u0111\u1ea7u n\u1ed1i LC duplex ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c v\u1edbi c\u1ea3 hai lo\u1ea1i s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3n th\u00e2n \u0111\u1ea7u n\u1ed1i LC duplex kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i s\u1ee3i quang, ngh\u0129a l\u00e0 n\u00f3 c\u00f3 th\u1ec3 k\u1ebft th\u00fac c\u1ea3 s\u1ee3i quang \u0111a mode l\u1eabn \u0111\u01a1n mode mi\u1ec5n l\u00e0 s\u1eed d\u1ee5ng c\u00e1p n\u1ed1i v\u00e0 b\u1ed9 thu ph\u00e1t ph\u00f9 h\u1ee3p. T\u00ednh linh ho\u1ea1t n\u00e0y l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do khi\u1ebfn \u0111\u1ea7u n\u1ed1i LC duplex tr\u1edf th\u00e0nh giao di\u1ec7n th\u1ed1ng tr\u1ecb trong m\u1ea1ng quang d\u1ef1a tr\u00ean SFP tr\u00ean nhi\u1ec1u ti\u00eau chu\u1ea9n truy\u1ec1n d\u1eabn v\u00e0 m\u00f4i tr\u01b0\u1eddng m\u1ea1ng kh\u00e1c nhau.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25b6\ufe0f C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a \u0111\u1ea7u n\u1ed1i LC duplex<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, \u0111\u1ed9 c\u0103n ch\u1ec9nh quang h\u1ecdc \u0111\u00e1ng tin c\u1eady v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u ti\u00eau chu\u1ea9n Ethernet, <strong>\u0111\u1ea7u n\u1ed1i LC duplex \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i tr\u00ean nhi\u1ec1u lo\u1ea1i m\u1ea1ng s\u1ee3i quang<\/strong>. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng c\u00e1c b\u1ed9 thu ph\u00e1t quang SFP, SFP+ v\u00e0 SFP28, l\u00e0m cho ch\u00fang tr\u1edf th\u00e0nh giao di\u1ec7n ti\u00eau chu\u1ea9n cho c\u1ea3 truy\u1ec1n th\u00f4ng quang t\u1ea7m ng\u1eafn v\u00e0 t\u1ea7m xa.<\/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\/ee8de05afeb84c6aa64ca5c1163c6d4c.jpg\" alt=\"Common Applications of Duplex LC Connectors\" class=\"wp-image-3096\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ee8de05afeb84c6aa64ca5c1163c6d4c.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ee8de05afeb84c6aa64ca5c1163c6d4c-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ee8de05afeb84c6aa64ca5c1163c6d4c-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ee8de05afeb84c6aa64ca5c1163c6d4c-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ee8de05afeb84c6aa64ca5c1163c6d4c-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng ph\u1ed5 bi\u1ebfn nh\u1ea5t n\u01a1i \u0111\u1ea7u n\u1ed1i LC duplex \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Trung t\u00e2m d\u1eef li\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i, thi\u1ebft b\u1ecb m\u1ea1ng y\u00eau c\u1ea7u <strong>m\u1eadt \u0111\u1ed9 c\u1ed5ng cao v\u00e0 k\u1ebft n\u1ed1i quang t\u1ed1c \u0111\u1ed9 cao \u0111\u00e1ng tin c\u1eady<\/strong>. K\u00edch th\u01b0\u1edbc nh\u1ecf c\u1ee7a \u0111\u1ea7u n\u1ed1i LC cho ph\u00e9p c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 m\u00e1y ch\u1ee7 h\u1ed7 tr\u1ee3 s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u1ed5ng quang trong kh\u00f4ng gian gi\u00e1 \u0111\u1ee1 h\u1ea1n ch\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh trong trung t\u00e2m d\u1eef li\u1ec7u bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/strong> trong ki\u1ebfn tr\u00fac t\u1ed5ng h\u1ee3p ho\u1eb7c spine-leaf<\/p><\/li><li><p><strong>K\u1ebft n\u1ed1i m\u00e1y ch\u1ee7<\/strong> s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng l\u00ean quang (fiber uplinks) cho c\u00e1c kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c b\u0103ng th\u00f4ng cao<\/p><\/li><li><p>C\u00e1c k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn s\u1eed d\u1ee5ng quang h\u1ecdc \u0111a mode nh\u01b0 <strong>10GBASE-SR<\/strong> or <strong>25GBASE-LR<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tri\u1ec3n khai n\u00e0y th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1p n\u1ed1i \u0111a mode LC duplex \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 thu ph\u00e1t quang gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ea1ng vi\u1ec5n th\u00f4ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i LC duplex c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong <strong>m\u1ea1ng v\u1eadn chuy\u1ec3n vi\u1ec5n th\u00f4ng<\/strong>, \u0111\u1eb7c bi\u1ec7t t\u1ea1i c\u00e1c v\u1ecb tr\u00ed tri\u1ec3n khai m\u00f4-\u0111un quang d\u1ef1a tr\u00ean SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng vi\u1ec5n th\u00f4ng \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u1ebft n\u1ed1i m\u1ea1ng \u0111\u00f4 th\u1ecb<\/strong> k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb t\u1ed5ng h\u1ee3p v\u00e0 truy c\u1eadp<\/p><\/li><li><p><strong>C\u00e1c k\u1ebft n\u1ed1i quang kho\u1ea3ng c\u00e1ch xa<\/strong> s\u1eed d\u1ee5ng s\u1ee3i quang \u0111\u01a1n mode<\/p><\/li><li><p><strong>c\u00e1c h\u1ec7 th\u1ed1ng DWDM<\/strong>, n\u01a1i \u0111\u1ea7u n\u1ed1i LC duplex k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 thu ph\u00e1t v\u1edbi thi\u1ebft b\u1ecb gh\u00e9p k\u00eanh b\u01b0\u1edbc s\u00f3ng th\u1ee5 \u0111\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y, \u0111\u1ea7u n\u1ed1i LC duplex cung c\u1ea5p giao di\u1ec7n \u0111\u00e1ng tin c\u1eady cho c\u00e1c m\u00f4-\u0111un quang ho\u1ea1t \u0111\u1ed9ng \u1edf c\u00e1c b\u01b0\u1edbc s\u00f3ng nh\u01b0 <strong>1310 nm ho\u1eb7c 1550 nm<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ea1ng doanh nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u m\u1ea1ng khu\u00f4n vi\u00ean doanh nghi\u1ec7p d\u1ef1a v\u00e0o k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng b\u1eb1ng s\u1ee3i quang gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 ho\u1eb7c gi\u1eefa c\u00e1c l\u1edbp chuy\u1ec3n m\u1ea1ch ph\u00e2n ph\u1ed1i v\u00e0 l\u00f5i. \u0110\u1ea7u n\u1ed1i LC duplex th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y v\u00ec ch\u00fang h\u1ed7 tr\u1ee3 c\u00e1c ti\u00eau chu\u1ea9n Ethernet \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i \u0111\u1ed3ng th\u1eddi duy tr\u00ec kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c b\u1ea3ng \u0111\u1ea5u n\u1ed1i s\u1ee3i quang ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng khu\u00f4n vi\u00ean<\/strong> gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li><li><p><strong>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng chuy\u1ec3n m\u1ea1ch l\u00f5i<\/strong> trong m\u1ea1ng doanh nghi\u1ec7p<\/p><\/li><li><p>\u0110\u01b0\u1eddng l\u00ean quang k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch truy c\u1eadp v\u1edbi c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1ed5ng h\u1ee3p ho\u1eb7c l\u00f5i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c t\u00ecnh hu\u1ed1ng n\u00e0y, \u0111\u1ea7u n\u1ed1i LC duplex th\u01b0\u1eddng k\u1ebft th\u00fac <strong>c\u00e1p n\u1ed1i s\u1ee3i quang \u0111\u01a1n mode ho\u1eb7c \u0111a mode<\/strong> \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">b\u1ed9 ph\u00e1t thu quang SFP<\/a> trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean to\u00e0n b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng vi\u1ec5n th\u00f4ng v\u00e0 m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p, giao di\u1ec7n LC duplex ti\u1ebfp t\u1ee5c \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i quang \u0111\u00e1ng tin c\u1eady v\u00e0 ti\u00eau chu\u1ea9n h\u00f3a cho c\u00e1c m\u1ea1ng s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25b6\ufe0f C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 \u0111\u1ea7u n\u1ed1i LC duplex SFP<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ea7u n\u1ed1i LC duplex l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>LC k\u00e9p<\/strong> l\u00e0 c\u1ea5u h\u00ecnh \u0111\u1ea7u n\u1ed1i s\u1ee3i quang k\u1ebft h\u1ee3p <strong>hai \u0111\u1ea7u n\u1ed1i LC trong m\u1ed9t giao di\u1ec7n gh\u00e9p \u0111\u00f4i duy nh\u1ea5t<\/strong>. M\u1ed7i \u0111\u1ea7u n\u1ed1i k\u1ebft th\u00fac m\u1ed9t s\u1ee3i quang, cho ph\u00e9p c\u00e1c \u0111\u01b0\u1eddng d\u1eabn ri\u00eang bi\u1ec7t \u0111\u1ec3 truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng quang:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>truy\u1ec1n (TX) <strong>T\u00edn hi\u1ec7u<\/strong> S\u1ee3i c\u00f2n l\u1ea1i mang t\u00edn hi\u1ec7u<\/p><\/li><li><p>nh\u1eadn (RX) <strong>C\u1ea5u h\u00ecnh n\u00e0y cho ph\u00e9p truy\u1ec1n th\u00f4ng hai chi\u1ec1u \u0111\u1ed3ng th\u1eddi, th\u01b0\u1eddng g\u1ecdi l\u00e0 truy\u1ec1n hai chi\u1ec1u \u0111\u1ea7y \u0111\u1ee7 (full-duplex). Ch\u1ebf \u0111\u1ed9 full-duplex l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu trong m\u1ea1ng Ethernet v\u00ec c\u00e1c thi\u1ebft b\u1ecb ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u c\u00f9ng l\u00fac m\u00e0 kh\u00f4ng x\u1ea3y ra va ch\u1ea1m.<\/strong> S\u1ee3i c\u00f2n l\u1ea1i mang t\u00edn hi\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ebfn tr\u00fac hai s\u1ee3i n\u00e0y cho ph\u00e9p <strong>giao ti\u1ebfp hai chi\u1ec1u \u0111\u1ed3ng th\u1eddi<\/strong>, \u0111\u00e2y l\u00e0 ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng ti\u00eau chu\u1ea9n cho c\u00e1c li\u00ean k\u1ebft quang d\u1ef1a tr\u00ean Ethernet \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao ph\u1ea7n l\u1edbn b\u1ed9 thu ph\u00e1t SFP s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i LC duplex?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn b\u1ed9 thu ph\u00e1t quang SFP, SFP+ v\u00e0 SFP28 s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i LC duplex v\u00ec ch\u00fang cung c\u1ea5p s\u1ef1 c\u00e2n b\u1eb1ng hi\u1ec7u qu\u1ea3 gi\u1eefa <strong>k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, \u0111\u1ed9 c\u0103n ch\u1ec9nh quang h\u1ecdc \u0111\u00e1ng tin c\u1eady v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ti\u00eau chu\u1ea9n<\/strong> v\u1edbi c\u00e1p n\u1ed1i s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng l\u00fd do ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>M\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/strong> \u2013 \u0110\u1ea7u n\u1ed1i LC nh\u1ecf h\u01a1n c\u00e1c lo\u1ea1i \u0111\u1ea7u n\u1ed1i c\u0169 h\u01a1n nh\u01b0 SC, cho ph\u00e9p nhi\u1ec1u c\u1ed5ng quang h\u01a1n tr\u00ean thi\u1ebft b\u1ecb m\u1ea1ng<\/p><\/li><li><p><strong>Li\u00ean k\u1ebft quang \u0111\u00e1ng tin c\u1eady<\/strong> \u2013 c\u00e1i <strong>l\u00f5i ferrule 1,25 mm<\/strong> cung c\u1ea5p \u0111\u1ed9 c\u0103n ch\u1ec9nh s\u1ee3i quang ch\u00ednh x\u00e1c nh\u1eb1m \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh<\/p><\/li><li><p><strong>Ki\u1ebfn tr\u00fac Ethernet ti\u00eau chu\u1ea9n h\u00f3a<\/strong> \u2013 h\u1ea7u h\u1ebft c\u00e1c ti\u00eau chu\u1ea9n quang Ethernet \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u1ef1a tr\u00ean <strong>hai s\u1ee3i ri\u00eang bi\u1ec7t cho k\u00eanh ph\u00e1t (TX) v\u00e0 thu (RX)<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y, giao di\u1ec7n LC duplex \u0111\u00e3 tr\u1edf th\u00e0nh <strong>lo\u1ea1i \u0111\u1ea7u n\u1ed1i m\u1eb7c \u0111\u1ecbnh cho nhi\u1ec1u <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488474.htm\"><strong>1G<\/strong><\/a><strong>, <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476212.htm\"><strong>Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/strong><\/a><strong>, and <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488477.htm\"><strong>25G<\/strong><\/a><strong> b\u1ed9 thu ph\u00e1t quang<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ea7u n\u1ed1i LC duplex c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi s\u1ee3i quang \u0111\u01a1n mode kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3. \u0110\u1ea7u n\u1ed1i LC duplex t\u01b0\u01a1ng th\u00edch v\u1edbi c\u1ea3 s\u1ee3i quang \u0111\u01a1n mode (SMF) v\u00e0 \u0111a mode (MMF).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3n th\u00e2n \u0111\u1ea7u n\u1ed1i ch\u1ec9 cung c\u1ea5p giao di\u1ec7n c\u01a1 h\u1ecdc \u0111\u1ec3 k\u1ebft cu\u1ed1i s\u1ee3i quang. Lo\u1ea1i <strong>s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng quang<\/strong> \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi module quang v\u00e0 d\u00e2y c\u00e1p n\u1ed1i d\u00f9ng k\u00e8m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01a1n mode:<\/strong> 1000BASE-LX, 10GBASE-LR, 10GBASE-ER<\/p><\/li><li><p><strong>C\u00e1c \u1ee9ng d\u1ee5ng \u0111a mode:<\/strong> 1000BASE-SX, 10GBASE-SR, 25GBASE-SR<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mi\u1ec5n l\u00e0 d\u00e2y c\u00e1p n\u1ed1i s\u1ee3i quang v\u00e0 b\u1ed9 thu ph\u00e1t quang ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n y\u00eau c\u1ea7u, \u0111\u1ea7u n\u1ed1i LC duplex c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u1ea3 hai m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa LC duplex v\u00e0 LC simplex l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa <strong>LC hai chi\u1ec1u<\/strong> and <strong>LC simplex<\/strong> l\u00e0 s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c truy\u1ec1n th\u00f4ng <strong>Ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n th\u00f4ng<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i \u0111\u1ea7u n\u1ed1i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ed1 s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>K\u00eanh TX v\u00e0 RX ri\u00eang bi\u1ec7t<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 s\u1ee3i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n hai chi\u1ec1u tr\u00ean m\u1ed9t s\u1ee3i quang duy nh\u1ea5t<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>LC \u0111\u01a1n h\u01b0\u1edbng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 s\u1ee3i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ea7u n\u1ed1i LC duplex s\u1eed d\u1ee5ng<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">hai s\u1ee3i quang <strong>, cho ph\u00e9p truy\u1ec1n v\u00e0 nh\u1eadn \u0111\u1ed3ng th\u1eddi. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c module quang Ethernet.<\/strong>, \u0110\u1ea7u n\u1ed1i LC simplex th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">, s\u1eed d\u1ee5ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476696.htm\"><strong>b\u1ed9 thu ph\u00e1t quang BiDi<\/strong><\/a>, c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau <strong>\u0111\u1ec3 g\u1eedi v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u tr\u00ean m\u1ed9t s\u1ee3i quang duy nh\u1ea5t.<\/strong> M\u1ed9t s\u1ee3i quang c\u00f3 th\u1ec3 thay th\u1ebf \u0111\u1ea7u n\u1ed1i LC duplex kh\u00f4ng?.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p,<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">c\u00f3\u2014nh\u01b0ng ch\u1ec9 v\u1edbi c\u00e1c module quang chuy\u00ean d\u1ee5ng, <strong>C\u00e1c b\u1ed9 thu ph\u00e1t quang ti\u00eau chu\u1ea9n y\u00eau c\u1ea7u<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v\u00e0 do \u0111\u00f3 s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i LC duplex. Tuy nhi\u00ean, <strong>, cho ph\u00e9p truy\u1ec1n v\u00e0 nh\u1eadn \u0111\u1ed3ng th\u1eddi. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c module quang Ethernet.<\/strong> c\u00e1c b\u1ed9 thu ph\u00e1t quang BiDi (hai chi\u1ec1u), <strong>\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean<\/strong> m\u1ed9t s\u1ee3i quang duy nh\u1ea5t <strong>C\u00e1c module n\u00e0y s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">gh\u00e9p k\u00eanh ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng (WDM) <strong>, trong \u0111\u00f3:<\/strong> M\u1ed9t b\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 truy\u1ec1n<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t b\u01b0\u1edbc s\u00f3ng kh\u00e1c \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nh\u1eadn<\/p><\/li><li><p>V\u00ed d\u1ee5, m\u1ed9t module c\u00f3 th\u1ec3 truy\u1ec1n \u1edf b\u01b0\u1edbc s\u00f3ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">1310 nm v\u00e0 nh\u1eadn \u1edf 1550 nm <strong>, trong khi module \u0111\u1ed1i di\u1ec7n s\u1eed d\u1ee5ng ng\u01b0\u1ee3c l\u1ea1i c\u00e1c b\u01b0\u1edbc s\u00f3ng n\u00e0y.<\/strong>, M\u1eb7c d\u00f9 c\u00e1c gi\u1ea3i ph\u00e1p d\u00f9ng m\u1ed9t s\u1ee3i quang c\u00f3 th\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng s\u1ee3i quang c\u1ea7n d\u00f9ng, c\u00e1c k\u1ebft n\u1ed1i LC duplex v\u1eabn l\u00e0 c\u1ea5u h\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 r\u1ed9ng r\u00e3i nh\u1ea5t trong m\u1ea1ng quang Ethernet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u25b6\ufe0f K\u1ebft lu\u1eadn: Hi\u1ec3u vai tr\u00f2 c\u1ee7a \u0111\u1ea7u n\u1ed1i LC duplex trong m\u1ea1ng quang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u0110\u1ea7u n\u1ed1i LC duplex \u0111\u00e3 tr\u1edf th\u00e0nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">giao di\u1ec7n quang ti\u00eau chu\u1ea9n cho nhi\u1ec1u b\u1ed9 thu ph\u00e1t hi\u1ec7n \u0111\u1ea1i <strong>v\u00ec ch\u00fang k\u1ebft h\u1ee3p k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, \u0111\u1ed9 c\u0103n ch\u1ec9nh s\u1ee3i quang ch\u00ednh x\u00e1c v\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 \u0111\u00e1ng tin c\u1eady cho truy\u1ec1n th\u00f4ng song c\u00f4ng. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng hai s\u1ee3i quang\u2014m\u1ed9t d\u00e0nh ri\u00eang cho vi\u1ec7c truy\u1ec1n t\u00edn hi\u1ec7u quang v\u00e0 m\u1ed9t cho vi\u1ec7c nh\u1eadn\u2014\u0111\u1ea7u n\u1ed1i LC duplex cung c\u1ea5p m\u1ed9t ki\u1ebfn tr\u00fac \u0111\u01a1n gi\u1ea3n v\u00e0 c\u1ef1c k\u1ef3 \u1ed5n \u0111\u1ecbnh cho c\u00e1c li\u00ean k\u1ebft quang Ethernet v\u00e0 vi\u1ec5n th\u00f4ng.<\/strong> Y\u1ebfu t\u1ed1 h\u00ecnh d\u00e1ng nh\u1ecf g\u1ecdn v\u00e0 thi\u1ebft k\u1ebf \u0111\u1ea7u n\u1ed1i ferrule 1,25 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c\u1ee7a ch\u00fang <strong>cho ph\u00e9p m\u1eadt \u0111\u1ed9 c\u1ed5ng cao tr\u00ean c\u00e1c switch, router v\u00e0 m\u00e1y ch\u1ee7, \u0111\u1ed3ng th\u1eddi v\u1eabn duy tr\u00ec \u0111\u1ed9 c\u0103n ch\u1ec9nh s\u1ee3i quang ch\u00ednh x\u00e1c v\u00e0 t\u1ed5n hao ch\u00e8n th\u1ea5p. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y khi\u1ebfn \u0111\u1ea7u n\u1ed1i LC duplex \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi<\/strong> c\u00e1c b\u1ed9 thu ph\u00e1t quang SFP, SFP+ v\u00e0 SFP28 <strong>, v\u1ed1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ea3 trong m\u1ea1ng s\u1ee3i quang \u0111a mode t\u1ea7m ng\u1eafn v\u00e0 m\u1ea1ng s\u1ee3i quang \u0111\u01a1n mode t\u1ea7m xa.<\/strong>, Tr\u00ean kh\u1eafp c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i\u2014bao g\u1ed3m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">, m\u1ea1ng v\u1eadn chuy\u1ec3n vi\u1ec5n th\u00f4ng v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng khu v\u1ef1c doanh nghi\u1ec7p\u2014\u0111\u1ea7u n\u1ed1i LC duplex \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i s\u1ee3i quang \u0111\u00e1ng tin c\u1eady. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u00fang v\u1edbi d\u00e2y c\u00e1p n\u1ed1i s\u1ee3i quang ti\u00eau chu\u1ea9n v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n quang Ethernet \u0111\u1ea3m b\u1ea3o vi\u1ec7c tri\u1ec3n khai d\u1ec5 d\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c l\u00e2u d\u00e0i tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng m\u1ea1ng kh\u00e1c nhau. <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-data-center\/\">trung t\u00e2m d\u1eef li\u1ec7u<br><\/a>, Khi c\u00e1c m\u1ea1ng quang ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng v\u1ec1 b\u0103ng th\u00f4ng v\u00e0 m\u1eadt \u0111\u1ed9 c\u1ed5ng, \u0111\u1ea7u n\u1ed1i LC duplex v\u1eabn l\u00e0 m\u1ed9t trong nh\u1eefng giao di\u1ec7n truy\u1ec1n th\u00f4ng quang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0 \u0111\u00e1ng tin c\u1eady nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1m ph\u00e1 c\u00e1c b\u1ed9 thu ph\u00e1t quang.<\/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\/16053ed880ff4ce998b2a65785ef25af.jpg\" alt=\"SFP optical transceivers with duplex LC interfaces \" class=\"wp-image-3097\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16053ed880ff4ce998b2a65785ef25af.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16053ed880ff4ce998b2a65785ef25af-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16053ed880ff4ce998b2a65785ef25af-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16053ed880ff4ce998b2a65785ef25af-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16053ed880ff4ce998b2a65785ef25af-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">SFP hi\u1ec7u su\u1ea5t cao v\u1edbi giao di\u1ec7n LC duplex <strong>\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ea1ng s\u1ee3i quang \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ea1i<\/strong> , v\u00e0 kh\u00e1m ph\u00e1 c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho \u1ee9ng d\u1ee5ng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 vi\u1ec5n th\u00f4ng hi\u1ec7n \u0111\u1ea1i. <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a>, v\u00e0 kh\u00e1m ph\u00e1 c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c \u1ee9ng d\u1ee5ng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 vi\u1ec5n th\u00f4ng hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u b\u1ed9 n\u1ed1i \u0111\u1ea7u duplex LC SFP l\u00e0 g\u00ec, c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c b\u1ed9 thu ph\u00e1t quang v\u00e0 l\u00fd do v\u00ec sao n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u1ea1ng c\u00e1p quang nh\u1eb1m \u0111\u1ea3m b\u1ea3o truy\u1ec1n th\u00f4ng hai chi\u1ec1u \u0111\u00e1ng tin c\u1eady.<\/p>","protected":false},"author":1,"featured_media":3089,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-3098","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3098","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=3098"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3098\/revisions"}],"predecessor-version":[{"id":10758,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3098\/revisions\/10758"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3089"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}