{"id":3023,"date":"2026-03-17T00:00:00","date_gmt":"2026-03-17T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/fiber-optic-cable-om3-vs-om4\/"},"modified":"2026-06-22T03:55:38","modified_gmt":"2026-06-22T03:55:38","slug":"fiber-optic-cable-om3-vs-om4","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-optic-cable-om3-vs-om4","title":{"rendered":"C\u00e1p Quang OM3 vs. OM4: T\u1ed1c \u0111\u1ed9, Kho\u1ea3ng c\u00e1ch v\u00e0 S\u1ef1 Kh\u00e1c bi\u1ec7t"},"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\/9782ab9c3f3741b196d3c2c40ca14402.jpg\" alt=\"Fiber Optic Cable OM3 vs. OM4: Speed, Distance, and Differences\" class=\"wp-image-3014\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9782ab9c3f3741b196d3c2c40ca14402.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9782ab9c3f3741b196d3c2c40ca14402-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9782ab9c3f3741b196d3c2c40ca14402-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9782ab9c3f3741b196d3c2c40ca14402-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9782ab9c3f3741b196d3c2c40ca14402-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang c\u00e1p quang \u0111a mode c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn b\u0103ng th\u00f4ng, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u00e0i h\u1ea1n. Hai lo\u1ea1i s\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i nh\u1ea5t l\u00e0 OM3 v\u00e0 OM4, c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476091.htm\">module quang<br><\/a>. Tuy nhi\u00ean, d\u00f9 c\u00f3 k\u00edch th\u01b0\u1edbc l\u00f5i t\u01b0\u01a1ng t\u1ef1 v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch, hai ti\u00eau chu\u1ea9n s\u1ee3i n\u00e0y kh\u00e1c nhau v\u1ec1 d\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9, kho\u1ea3ng c\u00e1ch truy\u1ec1n t\u1ed1i \u0111a v\u00e0 hi\u1ec7u n\u0103ng trong c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao nh\u01b0 Ethernet 40G v\u00e0 100G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng, nh\u00e0 thi\u1ebft k\u1ebf trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 chuy\u00ean gia quy ho\u1ea1ch c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng CNTT, vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1p quang OM3 v\u00e0 OM4 l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu khi x\u00e2y d\u1ef1ng c\u00e1c m\u1ea1ng c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. Trong khi OM3 t\u1eeb l\u00e2u \u0111\u00e3 \u0111\u01b0\u1ee3c xem l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c tri\u1ec3n khai \u0111a mode 10 gigabit, OM4 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u nh\u1eb1m h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng b\u0103ng th\u00f4ng cao h\u01a1n v\u00e0 kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft d\u00e0i h\u01a1n, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean trong nhi\u1ec1u trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t l\u00fd do kh\u00e1c khi\u1ebfn so s\u00e1nh n\u00e0y thu h\u00fat s\u1ef1 ch\u00fa \u00fd \u0111\u00e1ng k\u1ec3 l\u00e0 quy\u1ebft \u0111\u1ecbnh th\u1ef1c t\u1ebf m\u00e0 c\u00e1c k\u1ef9 s\u01b0 ph\u1ea3i \u0111\u1ed1i m\u1eb7t khi n\u00e2ng c\u1ea5p. Nhi\u1ec1u h\u1ec7 th\u1ed1ng hi\u1ec7n h\u1eefu \u0111\u00e3 s\u1eed d\u1ee5ng c\u00e1p OM3, d\u1eabn \u0111\u1ebfn nh\u1eefng c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Li\u1ec7u OM3 c\u00f3 h\u1ed7 tr\u1ee3 Ethernet 100G kh\u00f4ng?<\/p><\/li>\n\n\n\n<li><p>OM3 c\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi s\u1ee3i quang OM4 kh\u00f4ng?<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c chi th\u00eam chi ph\u00ed cho OM4 c\u00f3 \u0111\u01b0\u1ee3c bi\u1ec7n minh hay kh\u00f4ng khi xem x\u00e9t vi\u1ec7c m\u1edf r\u1ed9ng m\u1ea1ng trong t\u01b0\u01a1ng lai?<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u1ea3o lu\u1eadn th\u1ef1c t\u1ebf t\u1eeb c\u1ed9ng \u0111\u1ed3ng m\u1ea1ng v\u00e0 c\u00e1c di\u1ec5n \u0111\u00e0n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u0169ng nh\u1ea5n m\u1ea1nh r\u1eb1ng quy\u1ebft \u0111\u1ecbnh n\u00e0y hi\u1ebfm khi mang t\u00ednh l\u00fd thuy\u1ebft. C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng c\u00e2n nh\u1eafc c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 <strong>l<\/strong>chi\u1ec1u d\u00e0i li\u00ean k\u1ebft, lo\u1ea1i b\u1ed9 thu ph\u00e1t, chi ph\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 l\u1ed9 tr\u00ecnh n\u00e2ng c\u1ea5p khi l\u1ef1a ch\u1ecdn gi\u1eefa OM3 v\u00e0 OM4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, ch\u00fang ta s\u1ebd so s\u00e1nh c\u00e1p quang OM3 v\u00e0 OM4 t\u1eeb c\u1ea3 g\u00f3c \u0111\u1ed9 k\u1ef9 thu\u1eadt l\u1eabn th\u1ef1c ti\u1ec5n, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>The <strong>th\u00f4ng s\u1ed1 l\u00f5i v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 b\u0103ng th\u00f4ng<\/strong><\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch <strong>truy\u1ec1n t\u1ed1i \u0111a \u1edf t\u1ed1c \u0111\u1ed9 10G, 40G v\u00e0 100G<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c y\u1ebfu t\u1ed1 chi ph\u00ed v\u00e0 c\u00e1c k\u1ecbch b\u1ea3n tri\u1ec3n khai<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 chi\u1ebfn l\u01b0\u1ee3c n\u00e2ng c\u1ea5p<\/strong><\/p><\/li>\n\n\n\n<li><p>Nh\u1eefng th\u00f4ng tin chi ti\u1ebft t\u1eeb c\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn th\u1ef1c t\u1ebf c\u1ee7a k\u1ef9 s\u01b0 m\u1ea1ng v\u00e0 kinh nghi\u1ec7m th\u1ef1c \u0111\u1ecba<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ebfn cu\u1ed1i b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u1ec1 th\u1eddi \u0111i\u1ec3m s\u1ee3i OM3 l\u00e0 \u0111\u1ee7 d\u00f9ng v\u00e0 khi n\u00e0o vi\u1ec7c n\u00e2ng c\u1ea5p l\u00ean s\u1ee3i OM4 mang l\u1ea1i l\u1ee3i th\u1ebf th\u1ef1c s\u1ef1 cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf S\u1ee3i OM3 l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ee3i OM3<\/strong> l\u00e0 m\u1ed9t lo\u1ea1i s\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser (MMF), \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao trong m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u. N\u00f3 thu\u1ed9c h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i s\u1ee3i quang \u0111a mode theo ti\u00eau chu\u1ea9n ISO\/IEC v\u00e0 s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac l\u00f5i\/v\u1ecf 50\/125 \u00b5m, cho ph\u00e9p truy\u1ec1n t\u00edn hi\u1ec7u quang b\u1eb1ng <strong>laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t h\u1ed1c d\u1ecdc (<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\"><strong>VCSELs<br><\/strong><\/a><strong>)<\/strong> th\u01b0\u1eddng g\u1eb7p trong c\u00e1c b\u1ed9 thu ph\u00e1t quang hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So v\u1edbi c\u00e1c lo\u1ea1i s\u1ee3i quang \u0111a mode c\u0169 h\u01a1n nh\u01b0 OM1 v\u00e0 OM2, OM3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t nh\u1eb1m h\u1ed7 tr\u1ee3 Ethernet 10 Gigabit tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n trong khi v\u1eabn duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u \u1ed5n \u0111\u1ecbnh. D\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng (EMB) c\u1ea3i ti\u1ebfn c\u1ee7a n\u00f3 v\u00e0o kho\u1ea3ng 2000 MHz\u00b7km t\u1ea1i b\u01b0\u1edbc s\u00f3ng 850 nm gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ef1 t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 \u2014 y\u1ebfu t\u1ed1 h\u1ea1n ch\u1ebf ch\u00ednh trong truy\u1ec1n d\u1eabn tr\u00ean s\u1ee3i quang \u0111a mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd thi\u1ebft k\u1ebf n\u00e0y, s\u1ee3i OM3 \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n ng\u00e0nh cho c\u00e1c li\u00ean k\u1ebft quang ng\u1eafn \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 10G, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 <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>, m\u1ea1ng khu\u00f4n vi\u00ean v\u00e0 c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p.<\/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\/ecb63a4129a349afac9b466ee2be3a8e.jpg\" alt=\"What Is OM3 Fiber?\" class=\"wp-image-3015\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ecb63a4129a349afac9b466ee2be3a8e.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ecb63a4129a349afac9b466ee2be3a8e-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ecb63a4129a349afac9b466ee2be3a8e-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ecb63a4129a349afac9b466ee2be3a8e-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ecb63a4129a349afac9b466ee2be3a8e-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a OM3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt ch\u1ee7 ch\u1ed1t c\u1ee7a s\u1ee3i OM3 gi\u00fap gi\u1ea3i th\u00edch l\u00fd do v\u00ec sao n\u00f3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c tri\u1ec3n khai m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i \u0111a mode OM3<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><p>Switch model support list<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110a mode \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>K\u00edch th\u01b0\u1edbc l\u00f5i \/ v\u1ecf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50 \/ 125 \u00b5m<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>B\u01b0\u1edbc s\u00f3ng \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850 nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>D\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2248 2000 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 suy hao (850 nm)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2264 3,5 dB\/km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u00e0u v\u1ecf b\u1ecdc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xanh n\u01b0\u1edbc bi\u1ec3n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch Ethernet 10G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 300 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch Ethernet 40G \/ 100G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a 100 m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb d\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 2000 MHz\u00b7km l\u00e0 m\u1ed9t trong nh\u1eefng th\u00f4ng s\u1ed1 \u0111\u1eb7c tr\u01b0ng x\u00e1c \u0111\u1ecbnh c\u1ee7a OM3. Gi\u00e1 tr\u1ecb n\u00e0y x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng d\u1eef li\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n qua s\u1ee3i m\u00e0 kh\u00f4ng g\u00e2y m\u00e9o t\u00edn hi\u1ec7u qu\u00e1 m\u1ee9c do t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 m\u1eb7t th\u1ef1c t\u1ebf, d\u1ea3i th\u00f4ng n\u00e0y cho ph\u00e9p OM3 h\u1ed7 tr\u1ee3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/475415.htm\" target=\"_self\"><strong>10GBASE-SR<\/strong><\/a><strong> l\u00ean \u0111\u1ebfn 300 m\u00e9t<\/strong><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/482749.htm\" target=\"_self\"><strong>40GBASE-SR4<\/strong><\/a><strong> and <\/strong><a href=\"https:\/\/www.l-p.com\/products\/473116.htm\" target=\"_self\"><strong>100GBASE-SR4<\/strong><\/a><strong> l\u00ean \u0111\u1ebfn 100 m\u00e9t<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng kh\u1ea3 n\u0103ng n\u00e0y khi\u1ebfn OM3 ph\u00f9 h\u1ee3p cho c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao t\u1ea7m ng\u1eafn trong t\u00f2a nh\u00e0 ho\u1eb7c d\u00e3y t\u1ee7 m\u00e1y trong trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a OM3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u n\u0103ng v\u00e0 chi ph\u00ed, s\u1ee3i OM3 \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng m\u1ea1ng. C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c k\u1ebft n\u1ed1i t\u1eeb Top-of-Rack (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-tor-top-of-rack-switch\/\">ToR<\/a>) \u0111\u1ebfn b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1ed5ng h\u1ee3p, v\u1edbi kho\u1ea3ng c\u00e1ch th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 10 \u0111\u1ebfn 100 m\u00e9t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u t\u00f2a nh\u00e0 doanh nghi\u1ec7p s\u1eed d\u1ee5ng s\u1ee3i OM3 cho c\u00e1c li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng 10G gi\u1eefa c\u00e1c t\u1ea7ng ho\u1eb7c c\u00e1c t\u1ee7 m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>K\u1ebft n\u1ed1i m\u00e1y ch\u1ee7 t\u1ed1c \u0111\u1ed9 cao<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn gi\u1eefa m\u00e1y ch\u1ee7, m\u1ea3ng l\u01b0u tr\u1eef v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch th\u01b0\u1eddng d\u1ef1a v\u00e0o OM3 k\u1ebft h\u1ee3p v\u1edbi <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">SFP+<\/a> or <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">QSFP<\/a> m\u00f4-\u0111un quang h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Li\u00ean k\u1ebft m\u1ea1ng khu\u00f4n vi\u00ean<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4i tr\u01b0\u1eddng khu\u00f4n vi\u00ean th\u01b0\u1eddng tri\u1ec3n khai OM3 cho c\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 trong ph\u1ea1m vi kho\u1ea3ng c\u00e1ch v\u1eeba ph\u1ea3i, \u0111\u1eb7c bi\u1ec7t khi l\u00ean k\u1ebf ho\u1ea1ch n\u00e2ng c\u1ea5p l\u00ean Ethernet 10G trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, OM3 c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i c\u00f9ng c\u00e1p trunk MPO\/MTP nh\u1eb1m h\u1ed7 tr\u1ee3 quang h\u1ecdc song song trong c\u00e1c tri\u1ec3n khai Ethernet 40G v\u00e0 100G.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o OM3 l\u00e0 l\u1ef1a ch\u1ecdn mang gi\u00e1 tr\u1ecb t\u1ed1t nh\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c ti\u00eau chu\u1ea9n s\u1ee3i m\u1edbi h\u01a1n \u0111\u00e3 xu\u1ea5t hi\u1ec7n, OM3 v\u1eabn ti\u1ebfp t\u1ee5c l\u00e0 gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed cho nhi\u1ec1u t\u00ecnh hu\u1ed1ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM3 th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9 m\u1ea1ng ch\u1ee7 y\u1ebfu l\u00e0 10 Gigabit Ethernet<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft d\u01b0\u1edbi 300 m\u00e9t<\/p><\/li>\n\n\n\n<li><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f4ng y\u00eau c\u1ea7u n\u00e2ng c\u1ea5p ngay l\u1eadp t\u1ee9c l\u00ean c\u00e1c m\u1ea1ng quang 100G m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>Ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n \u01b0u ti\u00ean chi ph\u00ed c\u00e1p th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nhi\u1ec1u m\u1ea1ng hi\u1ec7n h\u1eefu, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p s\u1ee3i quang OM3 \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng ti\u1ebfp t\u1ee5c s\u1eed d\u1ee5ng OM3 v\u00ec n\u00f3 cung c\u1ea5p hi\u1ec7u n\u0103ng \u0111\u00e1ng tin c\u1eady cho c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn m\u00e0 kh\u00f4ng c\u1ea7n n\u00e2ng c\u1ea5p to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, khi l\u1eadp k\u1ebf ho\u1ea1ch tri\u1ec3n khai trung t\u00e2m d\u1eef li\u1ec7u m\u1edbi ho\u1eb7c d\u1ef1 ki\u1ebfn t\u0103ng tr\u01b0\u1edfng nhanh v\u1ec1 m\u1ea1ng quang 40G, 100G ho\u1eb7c t\u1ed1c \u0111\u1ed9 cao h\u01a1n, nhi\u1ec1u t\u1ed5 ch\u1ee9c c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng s\u1ee3i quang OM4 \u0111\u1ec3 \u0111\u1ea1t th\u00eam dung sai hi\u1ec7u n\u0103ng v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn d\u00e0i h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf S\u1ee3i quang OM4 l\u00e0 g\u00ec? Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, EMB v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng trong trung t\u00e2m d\u1eef li\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ee3i quang OM4<\/strong> l\u00e0 m\u1ed9t lo\u1ea1i s\u1ee3i \u0111a mode (MMF) \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser, nh\u1eb1m h\u1ed7 tr\u1ee3 b\u0103ng th\u00f4ng cao h\u01a1n v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn xa h\u01a1n so v\u1edbi OM3. Gi\u1ed1ng nh\u01b0 OM3, n\u00f3 s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac l\u00f5i v\u00e0 l\u1edbp v\u1ecf 50\/125 \u00b5m v\u00e0 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho ngu\u1ed3n ph\u00e1t laser VCSEL <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> ho\u1ea1t \u0111\u1ed9ng quanh b\u01b0\u1edbc s\u00f3ng 850 nm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3i ti\u1ebfn ch\u00ednh c\u1ee7a OM4 n\u1eb1m \u1edf d\u1ea3i b\u0103ng th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng (EMB) cao h\u01a1n, \u0111\u01b0\u1ee3c \u0111\u1eb7c t\u1ea3 \u1edf m\u1ee9c kho\u1ea3ng 4700 MHz\u00b7km. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ef1 t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9, gi\u00fap t\u00edn hi\u1ec7u quang duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n \u1edf t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd b\u0103ng th\u00f4ng t\u0103ng l\u00ean n\u00e0y, OM4 \u0111\u00e3 tr\u1edf th\u00e0nh lo\u1ea1i s\u1ee3i quang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u01a1i c\u00e1c t\u1ed5 ch\u1ee9c tri\u1ec3n khai Ethernet 40G v\u00e0 100G ho\u1eb7c d\u1ef1 ki\u1ebfn n\u00e2ng c\u1ea5p trong t\u01b0\u01a1ng lai l\u00ean c\u00e1c m\u1ea1ng quang t\u1ed1c \u0111\u1ed9 cao h\u01a1n.<\/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\/decab4572dc1483d82b054f8a8490beb.jpg\" alt=\"What Is OM4 Fiber?\" class=\"wp-image-3016\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/decab4572dc1483d82b054f8a8490beb.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/decab4572dc1483d82b054f8a8490beb-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/decab4572dc1483d82b054f8a8490beb-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/decab4572dc1483d82b054f8a8490beb-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/decab4572dc1483d82b054f8a8490beb-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a OM4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng sau \u0111\u00e2y t\u00f3m t\u1eaft c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh ph\u00e2n bi\u1ec7t OM4 v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n s\u1ee3i \u0111a mode tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 309px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i \u0111a mode OM4<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p><p>Switch model support list<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110a mode \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>K\u00edch th\u01b0\u1edbc l\u00f5i \/ v\u1ecf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50 \/ 125 \u00b5m<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>B\u01b0\u1edbc s\u00f3ng ho\u1ea1t \u0111\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850 nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>D\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2248 4700 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>\u0110\u1ed9 suy hao (850 nm)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2264 3,0 dB\/km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>M\u00e0u v\u1ecf b\u1ecdc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00e0u xanh n\u01b0\u1edbc bi\u1ec3n ho\u1eb7c m\u00e0u t\u00edm Erika<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>Kho\u1ea3ng c\u00e1ch Ethernet 10G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 400\u2013550 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"309\"><p>Kho\u1ea3ng c\u00e1ch Ethernet 40G \/ 100G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 150 m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c t\u1ea3 EMB 4700 MHz\u00b7km khi\u1ebfn b\u0103ng th\u00f4ng ch\u1ebf \u0111\u1ed9 c\u1ee7a OM4 g\u1ea7n g\u1ea5p \u0111\u00f4i so v\u1edbi OM3, t\u1eeb \u0111\u00f3 tr\u1ef1c ti\u1ebfp chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u1ea7m ph\u1ee7 s\u00f3ng d\u00e0i h\u01a1n v\u00e0 hi\u1ec7u n\u0103ng c\u1ea3i thi\u1ec7n cho c\u00e1c gi\u1ea3i ph\u00e1p quang h\u1ecdc song song \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ti\u00eau chu\u1ea9n Ethernet t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OM4 trong c\u00e1c tri\u1ec3n khai 40G v\u00e0 100G<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng l\u00fd do ch\u00ednh d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u00e1t tri\u1ec3n OM4 l\u00e0 \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c ti\u00eau chu\u1ea9n m\u1ea1ng quang t\u1ed1c \u0111\u1ed9 cao nh\u01b0 40GBASE-SR4 v\u00e0 100GBASE-SR4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u, c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y th\u01b0\u1eddng s\u1eed d\u1ee5ng quang h\u1ecdc song song qua k\u1ebft n\u1ed1i s\u1ee3i quang MPO\/MTP, trong \u0111\u00f3 nhi\u1ec1u s\u1ee3i quang truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ed3ng th\u1eddi. B\u0103ng th\u00f4ng ch\u1ebf \u0111\u1ed9 cao h\u01a1n c\u1ee7a OM4 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c t\u00edn hi\u1ec7u n\u00e0y ch\u1ecbu \u00edt t\u00e1n s\u1eafc h\u01a1n tr\u00ean c\u00e1c li\u00ean k\u1ebft d\u00e0i h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ki\u1ebfn tr\u00fac spine-leaf trong trung t\u00e2m d\u1eef li\u1ec7u<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang OM4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c switch leaf v\u1edbi c\u00e1c switch spine, n\u01a1i y\u00eau c\u1ea7u b\u0103ng th\u00f4ng cao v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u00e1m m\u00e2y m\u1eadt \u0111\u1ed9 cao<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn th\u01b0\u1eddng tri\u1ec3n khai OM4 \u0111\u1ec3 h\u1ed7 tr\u1ee3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn l\u01b0u l\u01b0\u1ee3ng east-west gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c li\u00ean k\u1ebft t\u1ed5ng h\u1ee3p t\u1ed1c \u0111\u1ed9 cao<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn OM4 khi l\u1eadp k\u1ebf ho\u1ea1ch cho c\u00e1c li\u00ean k\u1ebft t\u1ed5ng h\u1ee3p 40G ho\u1eb7c 100G v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch th\u1ef1c t\u1ebf c\u1ee7a OM3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd bi\u00ean \u0111\u1ed9 hi\u1ec7u n\u0103ng c\u1ea3i thi\u1ec7n, OM4 c\u0169ng gi\u00fap gi\u1ea3m r\u1ee7i ro l\u1ed7i li\u00ean k\u1ebft do t\u00e1n s\u1eafc v\u00e0 t\u1ed5n hao ch\u00e8n, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p ph\u1ee9c t\u1ea1p c\u00f3 nhi\u1ec1u \u0111\u1ea7u n\u1ed1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OM4 so v\u1edbi OM5: Ghi ch\u00fa ng\u1eafn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 OM4 v\u1eabn \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, m\u1ed9t s\u1ed1 t\u1ed5 ch\u1ee9c \u0111ang \u0111\u00e1nh gi\u00e1 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1edbi c\u0169ng g\u1eb7p ph\u1ea3i s\u1ee3i \u0111a mode OM5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM5 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u nh\u1eb1m h\u1ed7 tr\u1ee3 gh\u00e9p k\u00eanh ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng ng\u1eafn (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-swdm-for-multimode-fiber-solutions-explained\/\">SWDM<\/a>), cho ph\u00e9p nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng truy\u1ec1n qua c\u00f9ng m\u1ed9t s\u1ee3i quang \u0111a mode. C\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 n\u00e2ng cao dung l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u1ea7n t\u0103ng s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, vi\u1ec7c \u00e1p d\u1ee5ng OM5 v\u1eabn c\u00f2n kh\u00e1 h\u1ea1n ch\u1ebf so v\u1edbi OM4. Nhi\u1ec1u m\u1ea1ng ti\u1ebfp t\u1ee5c tri\u1ec3n khai OM4 v\u00ec:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>N\u00f3 ho\u00e0n to\u00e0n t\u01b0\u01a1ng th\u00edch v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111a mode hi\u1ec7n h\u1eefu<\/p><\/li>\n\n\n\n<li><p>N\u00f3 h\u1ed7 tr\u1ee3 h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 thu ph\u00e1t quang 40G v\u00e0 100G hi\u1ec7n h\u00e0nh<\/p><\/li>\n\n\n\n<li><p>N\u00f3 mang l\u1ea1i hi\u1ec7u n\u0103ng m\u1ea1nh m\u1ebd m\u00e0 kh\u00f4ng \u0111i k\u00e8m chi ph\u00ed cao h\u01a1n c\u1ee7a c\u00e1c lo\u1ea1i s\u1ee3i m\u1edbi h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec nh\u1eefng l\u00fd do n\u00e0y, OM4 v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u \u0111ang l\u00ean k\u1ebf ho\u1ea1ch tri\u1ec3n khai m\u1ea1ng quang t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed3ng th\u1eddi c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u n\u0103ng, chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf So s\u00e1nh OM3 v\u00e0 OM4: T\u1ed1c \u0111\u1ed9, b\u0103ng th\u00f4ng ch\u1ebf \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1ed1i \u0111a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi so s\u00e1nh c\u00e1p quang s\u1ee3i OM3 v\u00e0 OM4, nh\u1eefng kh\u00e1c bi\u1ec7t k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t li\u00ean quan \u0111\u1ebfn <strong>b\u0103ng th\u00f4ng ch\u1ebf \u0111\u1ed9, t\u1ed1c \u0111\u1ed9 Ethernet \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1ed1i \u0111a<\/strong>. C\u1ea3 hai lo\u1ea1i s\u1ee3i \u0111\u1ec1u l\u00e0 s\u1ee3i \u0111a mode \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser v\u1edbi l\u00f5i 50\/125 \u00b5m, nh\u01b0ng OM4 cung c\u1ea5p dung l\u01b0\u1ee3ng b\u0103ng th\u00f4ng cao h\u01a1n \u0111\u00e1ng k\u1ec3, cho ph\u00e9p kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft d\u00e0i h\u01a1n \u1edf t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng s\u1ed1 \u0111o l\u01b0\u1eddng kh\u1ea3 n\u0103ng n\u00e0y ch\u1ee7 y\u1ebfu l\u00e0 B\u0103ng th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng (EMB). EMB cho bi\u1ebft m\u1ee9c \u0111\u1ed9 hi\u1ec7u qu\u1ea3 m\u00e0 m\u1ed9t s\u1ee3i quang \u0111a mode truy\u1ec1n t\u00edn hi\u1ec7u quang t\u1ed1c \u0111\u1ed9 cao m\u00e0 kh\u00f4ng b\u1ecb t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 qu\u00e1 m\u1ee9c. V\u00ec OM4 c\u00f3 EMB cao h\u01a1n nhi\u1ec1u so v\u1edbi OM3 n\u00ean n\u00f3 c\u00f3 th\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng Ethernet 40G v\u00e0 100G.<\/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\/8eea60ae32cb4c80b3a32492d7350db2.jpg\" alt=\"OM3 vs. OM4: Speed, Modal Bandwidth, and Maximum Transmission Distance\" class=\"wp-image-3017\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8eea60ae32cb4c80b3a32492d7350db2.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8eea60ae32cb4c80b3a32492d7350db2-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8eea60ae32cb4c80b3a32492d7350db2-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8eea60ae32cb4c80b3a32492d7350db2-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8eea60ae32cb4c80b3a32492d7350db2-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Kho\u1ea3ng c\u00e1ch OM3 so v\u1edbi OM4 theo t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng sau \u0111\u00e2y cung c\u1ea5p so s\u00e1nh r\u00f5 r\u00e0ng v\u1ec1 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1ed1i \u0111a \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho c\u00e1c ti\u00eau chu\u1ea9n Ethernet ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 203px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"203\"><p>T\u1ed1c \u0111\u1ed9 Ethernet<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch OM3<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch OM4<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"203\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477562.htm\">1GBASE-SX<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 1000 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 1000 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"203\"><p>10GBASE-SR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 300 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 400\u2013550 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"203\"><p>40GBASE-SR4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 150 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"203\"><p>100GBASE-SR4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 150 m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 th\u00f4ng tin quan tr\u1ecdng n\u1ed5i b\u1eadt t\u1eeb ph\u00e9p so s\u00e1nh n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ea1i <strong>T\u1ed1c \u0111\u1ed9 1G<\/strong>, c\u1ea3 OM3 v\u00e0 OM4 \u0111\u1ec1u cung c\u1ea5p kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a t\u01b0\u01a1ng t\u1ef1 nhau.<\/p><\/li>\n\n\n\n<li><p>T\u1ea1i <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>, OM4 m\u1edf r\u1ed9ng ph\u1ea1m vi truy\u1ec1n d\u1eabn th\u00eam kho\u1ea3ng 100\u2013250 m\u00e9t so v\u1edbi OM3.<\/p><\/li>\n\n\n\n<li><p>T\u1ea1i <strong>40G v\u00e0 100G<\/strong>, OM4 t\u0103ng kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft th\u00eam kho\u1ea3ng 50% so v\u1edbi OM3.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn, n\u01a1i c\u00e1c \u0111o\u1ea1n c\u00e1p quang d\u00e0i gi\u1eefa c\u00e1c d\u00e3y m\u00e1y ch\u1ee7 ho\u1eb7c c\u00e1c l\u1edbp chuy\u1ec3n m\u1ea1ch c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf c\u1ee7a OM3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">EMB ngh\u0129a l\u00e0 g\u00ec \u0111\u1ed1i v\u1edbi thi\u1ebft k\u1ebf li\u00ean k\u1ebft c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 hi\u1ec7u n\u0103ng gi\u1eefa OM3 v\u00e0 OM4 ch\u1ee7 y\u1ebfu b\u1eaft ngu\u1ed3n t\u1eeb d\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng (Effective Modal Bandwidth).<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 222px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"222\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>D\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng (850 nm)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"222\"><p><p>Up to 550 m (1,800 ft)<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2248 2000 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"222\"><p>OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2248 4700 MHz\u00b7km<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng cao h\u01a1n ngh\u0129a l\u00e0 s\u1ee3i quang c\u00f3 th\u1ec3 truy\u1ec1n t\u1ea3i nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n m\u00e0 kh\u00f4ng b\u1ecb m\u00e9o t\u00edn hi\u1ec7u. Trong s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9, t\u00edn hi\u1ec7u quang di chuy\u1ec3n theo nhi\u1ec1u \u0111\u01b0\u1eddng (ch\u1ebf \u0111\u1ed9) kh\u00e1c nhau. N\u1ebfu c\u00e1c ch\u1ebf \u0111\u1ed9 n\u00e0y \u0111\u1ebfn \u0111\u00edch v\u00e0o nh\u1eefng th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau, t\u00edn hi\u1ec7u s\u1ebd b\u1ecb m\u00e9o \u2014 hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM4 l\u00e0m gi\u1ea3m hi\u1ec7u \u1ee9ng n\u00e0y v\u00ec d\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 hi\u1ec7u d\u1ee5ng cao h\u01a1n cho ph\u00e9p c\u00e1c t\u00edn hi\u1ec7u t\u1eeb laser VCSEL duy tr\u00ec t\u00ednh \u0111\u1ed3ng b\u1ed9 tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n. K\u1ebft qu\u1ea3 l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00e1c li\u00ean k\u1ebft Ethernet t\u1ed1c \u0111\u1ed9 cao v\u1eabn \u1ed5n \u0111\u1ecbnh tr\u00ean c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i h\u01a1n<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf m\u1ea1ng c\u00f3 th\u00eam bi\u00ean \u0111\u1ed9 hi\u1ec7u n\u0103ng<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>Vi\u1ec7c n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf s\u1ee3i quang<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec l\u00fd do n\u00e0y, nhi\u1ec1u t\u1ed5 ch\u1ee9c tri\u1ec3n khai m\u1ea1ng 40G ho\u1eb7c 100G l\u1ef1a ch\u1ecdn s\u1ee3i quang OM4, ngay c\u1ea3 khi kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft hi\u1ec7n t\u1ea1i c\u1ee7a h\u1ecd v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi OM3. Kho\u1ea3ng d\u1ef1 ph\u00f2ng b\u0103ng th\u00f4ng b\u1ed5 sung n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai v\u00e0 \u0111\u1ed9 dung sai cao h\u01a1n \u0111\u1ed1i v\u1edbi t\u1ed5n hao ch\u00e8n (insertion loss) trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00e1p ph\u1ee9c t\u1ea1p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i ng\u1eafn g\u1ecdn, trong khi OM3 v\u1eabn ph\u00f9 h\u1ee3p cho <strong>c\u00e1c \u1ee9ng d\u1ee5ng 10G t\u1ea7m ng\u1eafn<\/strong>, th\u00ec OM4 mang l\u1ea1i <strong>bi\u00ean \u0111\u1ed9 hi\u1ec7u n\u0103ng l\u1edbn h\u01a1n cho c\u00e1c m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf So s\u00e1nh OM3 v\u00e0 OM4: T\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 vi\u1ec7c k\u1ebft h\u1ee3p s\u1eed d\u1ee5ng \u2014 C\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t khi n\u00e2ng c\u1ea5p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong qu\u00e1 tr\u00ecnh m\u1edf r\u1ed9ng m\u1ea1ng ho\u1eb7c n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t c\u00e2u h\u1ecfi th\u1ef1c t\u1ebf: li\u1ec7u s\u1ee3i quang OM3 v\u00e0 OM4 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ed3ng th\u1eddi trong c\u00f9ng m\u1ed9t li\u00ean k\u1ebft hay kh\u00f4ng? C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 c\u00f3 \u2014 OM3 v\u00e0 OM4 ho\u00e0n to\u00e0n t\u01b0\u01a1ng th\u00edch v\u00ec c\u1ea3 hai \u0111\u1ec1u s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9 gi\u1ed1ng nhau (50\/125 \u00b5m) v\u00e0 h\u1ed7 tr\u1ee3 c\u00f9ng c\u00e1c lo\u1ea1i \u0111\u1ea7u n\u1ed1i nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-duplex-lc-connector-explained\/\">LC<\/a>, SC v\u00e0 MPO\/MTP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u00f3 m\u1ed9t quy t\u1eafc quan tr\u1ecdng trong thi\u1ebft k\u1ebf m\u1ea1ng c\u00e1p quang:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c lo\u1ea1i c\u00e1p s\u1ee3i quang c\u00f3 c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng chung trong m\u1ed9t li\u00ean k\u1ebft duy nh\u1ea5t, hi\u1ec7u n\u0103ng t\u1ed5ng th\u1ec3 b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi s\u1ee3i quang c\u00f3 c\u1ea5p \u0111\u1ed9 th\u1ea5p nh\u1ea5t.<strong>.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u1ebfu s\u1ee3i OM4 \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi s\u1ee3i OM3, li\u00ean k\u1ebft th\u01b0\u1eddng s\u1ebd ho\u1ea1t \u0111\u1ed9ng trong gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch c\u1ee7a OM3, \u0111\u1eb7c bi\u1ec7t \u1edf t\u1ed1c \u0111\u1ed9 cao nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482750.htm\">40G-SR4<\/a> or <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/473115.htm\">100G-SR4<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u nguy\u00ean t\u1eafc n\u00e0y gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng l\u1eadp k\u1ebf ho\u1ea1ch n\u00e2ng c\u1ea5p t\u1eebng ph\u1ea7n m\u00e0 kh\u00f4ng g\u00e2y ra c\u00e1c \u0111i\u1ec3m ngh\u1ebdn hi\u1ec7u n\u0103ng.<\/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\/151d6fa7af644b76a0439b5d7ed42f45.jpg\" alt=\"OM3 vs. OM4 Compatibility and Mixing: Best Practices for Upgrades\" class=\"wp-image-3018\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/151d6fa7af644b76a0439b5d7ed42f45.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/151d6fa7af644b76a0439b5d7ed42f45-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/151d6fa7af644b76a0439b5d7ed42f45-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/151d6fa7af644b76a0439b5d7ed42f45-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/151d6fa7af644b76a0439b5d7ed42f45-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c t\u00ecnh hu\u1ed1ng k\u1ebft h\u1ee3p linh ho\u1ea1t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tri\u1ec3n khai th\u1ef1c t\u1ebf, OM3 v\u00e0 OM4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng n\u00e2ng c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1edf r\u1ed9ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng OM3 hi\u1ec7n c\u00f3<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u trung t\u00e2m d\u1eef li\u1ec7u c\u0169 \u0111\u00e3 l\u1eafp \u0111\u1eb7t c\u00e1p OM3 trong th\u1eddi k\u1ef3 Ethernet 10G. Khi th\u00eam c\u00e1c t\u1ee7 ho\u1eb7c h\u00e0ng m\u1edbi, k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1p trunk OM4 \u0111\u1ec3 h\u1ed7 tr\u1ee3 n\u00e2ng c\u1ea5p t\u1ed1c \u0111\u1ed9 cao trong t\u01b0\u01a1ng lai. Cho \u0111\u1ebfn khi to\u00e0n b\u1ed9 k\u00eanh \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p, hi\u1ec7u n\u0103ng li\u00ean k\u1ebft v\u1eabn tu\u00e2n theo gi\u1edbi h\u1ea1n c\u1ee7a OM3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p n\u1ed1i ng\u1eafn OM4 v\u1edbi h\u1ec7 th\u1ed1ng c\u00e1p backbone OM3<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn kh\u00e1c x\u1ea3y ra khi c\u00e1p n\u1ed1i ng\u1eafn OM4 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng c\u00e1p backbone OM3. C\u1ea5u h\u00ecnh n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng m\u00e0 kh\u00f4ng g\u1eb7p v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch, nh\u01b0ng kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a h\u1ed7 tr\u1ee3 v\u1eabn tu\u00e2n theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a OM3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Di chuy\u1ec3n d\u1ea7n sang m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c l\u00ean k\u1ebf ho\u1ea1ch chuy\u1ec3n sang Ethernet 40G ho\u1eb7c 100G \u0111\u00f4i khi n\u00e2ng c\u1ea5p h\u1ec7 th\u1ed1ng c\u00e1p trunk l\u00ean OM4 trong khi v\u1eabn gi\u1eef l\u1ea1i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p n\u1ed1i ng\u1eafn OM3 hi\u1ec7n c\u00f3. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y cho ph\u00e9p di chuy\u1ec3n t\u1eebng giai \u0111o\u1ea1n m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng c\u00e1p quang c\u00f9ng l\u00fac.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c l\u01b0u \u00fd v\u1ec1 MPO\/MTP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ng quang t\u1ed1c \u0111\u1ed9 cao th\u01b0\u1eddng s\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/understanding-polarity-in-mtp-mpo-system-for-signal-integrity\/\">MPO\/MTP<\/a> \u0111\u1ea7u n\u1ed1i MPO\/MTP, \u0111\u1eb7c bi\u1ec7t cho quang h\u1ecdc song song 40G v\u00e0 100G. Khi k\u1ebft h\u1ee3p s\u1ee3i OM3 v\u00e0 OM4 trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean MPO, m\u1ed9t s\u1ed1 th\u1ef1c h\u00e0nh t\u1ed1t sau \u0111\u00e2y r\u1ea5t quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Duy tr\u00ec s\u01a1 \u0111\u1ed3 c\u1ef1c t\u00ednh nh\u1ea5t qu\u00e1n<\/strong> (Ph\u01b0\u01a1ng ph\u00e1p A, B ho\u1eb7c C) tr\u00ean to\u00e0n b\u1ed9 k\u00eanh c\u00e1p quang<\/p><\/li>\n\n\n\n<li><p>Tr\u00e1nh k\u1ebft h\u1ee3p <strong>c\u00e1c lo\u1ea1i s\u1ee3i quang kh\u00e1c nhau trong c\u00f9ng m\u1ed9t c\u00e1p trunk<\/strong> b\u1ea5t c\u1ee9 khi n\u00e0o c\u00f3 th\u1ec3<\/p><\/li>\n\n\n\n<li><p>X\u00e1c minh r\u1eb1ng <strong>c\u00e1p trunk MPO v\u00e0 c\u00e1c c\u1ee5m chia nh\u00e1nh (breakout assemblies) ph\u00f9 h\u1ee3p v\u1edbi chu\u1ea9n Ethernet d\u1ef1 \u0111\u1ecbnh<\/strong><\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o c\u00e1c \u0111\u1ea7u n\u1ed1i <strong>s\u1ea1ch v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u00fang c\u00e1ch<\/strong>, v\u00ec t\u1ed5n hao ch\u00e8n (insertion loss) c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec quang h\u1ecdc song song ph\u00e2n ph\u1ed1i t\u00edn hi\u1ec7u tr\u00ean nhi\u1ec1u s\u1ee3i c\u00e1p, ngay c\u1ea3 nh\u1eefng t\u1ed5n hao ho\u1eb7c s\u1ef1 kh\u00f4ng kh\u1edbp nh\u1ecf c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a li\u00ean k\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra th\u1eed nghi\u1ec7m v\u00e0 x\u00e1c minh t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi l\u1eafp \u0111\u1eb7t ho\u1eb7c s\u1eeda \u0111\u1ed5i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng h\u1ed7n h\u1ee3p OM3\/OM4, vi\u1ec7c th\u1eed nghi\u1ec7m \u0111\u00fang c\u00e1ch l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ea1ng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh. K\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng tu\u00e2n theo quy tr\u00ecnh x\u00e1c minh bao g\u1ed3m:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Th\u1eed nghi\u1ec7m t\u1ed5n hao quang<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng m\u00e1y \u0111o c\u00f4ng su\u1ea5t quang v\u00e0 ngu\u1ed3n s\u00e1ng \u0111\u1ec3 \u0111o t\u1ed5n hao ch\u00e8n tr\u00ean to\u00e0n b\u1ed9 li\u00ean k\u1ebft s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Th\u1eed nghi\u1ec7m OTDR<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eed nghi\u1ec7m M\u00e1y ph\u1ea3n x\u1ea1 k\u1ebf th\u1eddi gian quang (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/optical-time-domain-reflectometer-fiber-fault-detection-guide\/\">OTDR<\/a>) c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Connector losses<\/p><\/li>\n\n\n\n<li><p>C\u00e1c ch\u1ed7 cong s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u1ed1i n\u1ed1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ch\u1ee9ng nh\u1eadn theo ti\u00eau chu\u1ea9n<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn theo c\u00e1c ti\u00eau chu\u1ea9n c\u00e1p c\u1ea5u tr\u00fac TIA-568 ho\u1eb7c ISO\/IEC nh\u1eb1m x\u00e1c nh\u1eadn li\u00ean k\u1ebft \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a b\u1ed9 thu ph\u00e1t<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea3m b\u1ea3o c\u00e1c m\u00f4-\u0111un quang (v\u00ed d\u1ee5 nh\u01b0 SFP+, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491627.htm\">QSFP+<\/a>, or <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491591.htm\">QSFP28<br><\/a>) t\u01b0\u01a1ng th\u00edch v\u1edbi lo\u1ea1i s\u1ee3i quang \u0111\u00e3 l\u1eafp \u0111\u1eb7t v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn d\u1ef1 ki\u1ebfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u00e0 qu\u1ea3n l\u00fd \u0111\u00fang c\u00e1ch, vi\u1ec7c tri\u1ec3n khai c\u00e1p s\u1ee3i quang \u0111a mode OM3 v\u00e0 OM4 k\u1ebft h\u1ee3p c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng m\u1ed9t c\u00e1ch t\u1eebng b\u01b0\u1edbc. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi c\u00e1c l\u1eafp \u0111\u1eb7t m\u1edbi ho\u1eb7c thi\u1ebft k\u1ebf trung t\u00e2m d\u1eef li\u1ec7u d\u00e0i h\u1ea1n, nhi\u1ec1u k\u1ef9 s\u01b0 ch\u1ecdn s\u1eed d\u1ee5ng m\u1ed9t lo\u1ea1i s\u1ee3i duy nh\u1ea5t\u2014th\u01b0\u1eddng l\u00e0 OM4\u2014\u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ea3m b\u1ea3o d\u1ef1 tr\u1eef \u0111\u1ee7 cho c\u00e1c n\u00e2ng c\u1ea5p Ethernet t\u1ed1c \u0111\u1ed9 cao trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf So s\u00e1nh chi ph\u00ed &amp; T\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO): H\u01b0\u1edbng d\u1eabn mua s\u1eafm c\u00e1p s\u1ee3i quang OM3 so v\u1edbi OM4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111\u00e1nh gi\u00e1 c\u00e1p s\u1ee3i quang OM3 so v\u1edbi OM4, quy\u1ebft \u0111\u1ecbnh hi\u1ebfm khi ch\u1ec9 d\u1ef1a tr\u00ean hi\u1ec7u n\u0103ng k\u1ef9 thu\u1eadt. Trong nhi\u1ec1u d\u1ef1 \u00e1n, chi ph\u00ed v\u00e0 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu d\u00e0i h\u1ea1n (TCO) \u0111\u00f3ng vai tr\u00f2 ch\u1ee7 ch\u1ed1t trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh lo\u1ea1i s\u1ee3i n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c tri\u1ec3n khai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00ecn s\u01a1 b\u1ed9, s\u1ee3i OM3 th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u1ea5p h\u01a1n tr\u00ean m\u1ed7i m\u00e9t so v\u1edbi OM4. Tuy nhi\u00ean, gi\u00e1 ban \u0111\u1ea7u c\u1ee7a c\u00e1p ch\u1ec9 chi\u1ebfm m\u1ed9t ph\u1ea7n nh\u1ecf trong t\u1ed5ng chi ph\u00ed \u0111\u1ea7u t\u01b0 m\u1ea1ng. C\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 nh\u00e2n c\u00f4ng l\u1eafp \u0111\u1eb7t, b\u1ea3ng \u0111\u1ea5u n\u1ed1i (patch panels), m\u00f4-\u0111un quang v\u00e0 chi ph\u00ed n\u00e2ng c\u1ea5p trong t\u01b0\u01a1ng lai th\u01b0\u1eddng \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n nhi\u1ec1u \u0111\u1ebfn ng\u00e2n s\u00e1ch cu\u1ed1i c\u00f9ng c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang th\u01b0\u1eddng t\u1ed3n t\u1ea1i t\u1eeb 10\u201320 n\u0103m, nhi\u1ec1u t\u1ed5 ch\u1ee9c c\u00e2n nh\u1eafc c\u1ea3 chi ph\u00ed mua s\u1eafm ng\u1eafn h\u1ea1n v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn gi\u1eefa OM3 v\u00e0 OM4.<\/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\/9c9c0e4eab054413ae26b676981e7952.jpg\" alt=\"Cost Comparison &amp; TCO: OM3 vs. OM4 Procurement Guidance\" class=\"wp-image-3019\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9c9c0e4eab054413ae26b676981e7952.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9c9c0e4eab054413ae26b676981e7952-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9c9c0e4eab054413ae26b676981e7952-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9c9c0e4eab054413ae26b676981e7952-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9c9c0e4eab054413ae26b676981e7952-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4 h\u00ecnh chi ph\u00ed ng\u1eafn h\u1ea1n so v\u1edbi d\u00e0i h\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 ng\u1eafn h\u1ea1n, OM3 th\u01b0\u1eddng h\u1ea5p d\u1eabn h\u01a1n v\u1ec1 m\u1eb7t ng\u00e2n s\u00e1ch thu\u1ea7n t\u00fay.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c y\u1ebfu t\u1ed1 chi ph\u00ed \u0111i\u1ec3n h\u00ecnh 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>Y\u1ebfu t\u1ed1 chi ph\u00ed<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><p>Up to 550 m (1,800 ft)<\/p><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>OM4<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Gi\u00e1 c\u00e1p tr\u00ean m\u1ed7i m\u00e9t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Lower<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>D\u00e2y nh\u1ea3y quang (patch cords)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Slightly lower<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u01a1i cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed l\u1eafp \u0111\u1eb7t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Similar<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Similar<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i \u0111\u1ea7u n\u1ed1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch b\u1ed9 thu ph\u00e1t (transceiver)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u1ea3 hai lo\u1ea1i s\u1ee3i \u0111\u1ec1u s\u1eed d\u1ee5ng <strong>c\u00e1c \u0111\u1ea7u n\u1ed1i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea7u cu\u1ed1i gi\u1ed1ng h\u1ec7t nhau, n\u00ean chi ph\u00ed l\u1eafp \u0111\u1eb7t th\u01b0\u1eddng g\u1ea7n nh\u01b0 b\u1eb1ng nhau. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh n\u1eb1m \u1edf b\u1ea3n th\u00e2n c\u00e1p s\u1ee3i,<\/strong>, n\u01a1i OM4 th\u01b0\u1eddng c\u00f3 gi\u00e1 cao h\u01a1n do dung sai s\u1ea3n xu\u1ea5t ch\u1eb7t ch\u1ebd h\u01a1n v\u00e0 th\u00f4ng s\u1ed1 d\u1ea3i th\u00f4ng ch\u1ebf \u0111\u1ed9 (modal bandwidth) cao h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, ch\u1ec9 t\u1eadp trung v\u00e0o gi\u00e1 c\u00e1p c\u00f3 th\u1ec3 g\u00e2y hi\u1ec3u l\u1ea7m. Trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u, chi ph\u00ed nh\u00e2n c\u00f4ng v\u00e0 chi ph\u00ed gi\u00e1n \u0111o\u1ea1n v\u1eadn h\u00e0nh v\u01b0\u1ee3t xa ch\u00eanh l\u1ec7ch gi\u00e1 gi\u1eefa s\u1ee3i OM3 v\u00e0 OM4.<\/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>K\u00e9o c\u00e1p qua m\u00e1ng c\u00e1p<\/p><\/li>\n\n\n\n<li><p>L\u1eafp \u0111\u1eb7t b\u1ea3ng \u0111\u1ea5u n\u1ed1i (patch panels)<\/p><\/li>\n\n\n\n<li><p>Th\u1ef1c hi\u1ec7n ki\u1ec3m tra v\u00e0 ch\u1ee9ng nh\u1eadn s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>L\u00ean l\u1ecbch c\u1eeda s\u1ed5 b\u1ea3o tr\u00ec<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng chi ph\u00ed v\u1eadn h\u00e0nh n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c thay th\u1ebf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang sau n\u00e0y c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi vi\u1ec7c l\u1eafp \u0111\u1eb7t s\u1ee3i c\u00f3 hi\u1ec7u n\u0103ng cao ngay t\u1eeb \u0111\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ed d\u1ee5 v\u1ec1 ROI cho n\u00e2ng c\u1ea5p l\u00ean 40G \/ 100G<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t t\u00ecnh hu\u1ed1ng n\u00e2ng c\u1ea5p \u0111\u01a1n gi\u1ea3n minh h\u1ecda c\u00e1ch OM4 gi\u00fap gi\u1ea3m chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u tri\u1ec3n khai Ethernet 10G b\u1eb1ng s\u1ee3i OM3 v\u1edbi kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft g\u1ea7n gi\u1edbi h\u1ea1n 300 m\u00e9t. N\u1ebfu t\u1ed5 ch\u1ee9c sau \u0111\u00f3 n\u00e2ng c\u1ea5p l\u00ean Ethernet 40G ho\u1eb7c 100G, OM3 ch\u1ec9 h\u1ed7 tr\u1ee3 kho\u1ea3ng 100 m\u00e9t \u1edf c\u00e1c t\u1ed1c \u0111\u1ed9 \u0111\u00f3. B\u1ea5t k\u1ef3 li\u00ean k\u1ebft n\u00e0o d\u00e0i h\u01a1n s\u1ebd y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t l\u1ea1i s\u1ee3i m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, OM4 h\u1ed7 tr\u1ee3 l\u00ean \u0111\u1ebfn 150 m\u00e9t cho Ethernet 40G v\u00e0 100G, cung c\u1ea5p th\u00eam d\u1ef1 tr\u1eef kho\u1ea3ng c\u00e1ch cho nhi\u1ec1u ki\u1ebfn tr\u00fac m\u1ea1ng. D\u1ef1 tr\u1eef kho\u1ea3ng c\u00e1ch b\u1ed5 sung n\u00e0y c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba vi\u1ec7c thay th\u1ebf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng t\u1ed1n k\u00e9m trong c\u00e1c \u0111\u1ee3t n\u00e2ng c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb g\u00f3c \u0111\u1ed9 TCO, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>OM3:<br><\/strong> Chi ph\u00ed c\u00e1p ban \u0111\u1ea7u th\u1ea5p h\u01a1n, nh\u01b0ng c\u00f3 th\u1ec3 ph\u00e1t sinh chi ph\u00ed \u0111i d\u00e2y l\u1ea1i trong t\u01b0\u01a1ng lai<\/p><\/li>\n\n\n\n<li><p><strong>OM4:<\/strong> \u0110\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n, nh\u01b0ng kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n t\u1ed1t h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ma tr\u1eadn ra quy\u1ebft \u0111\u1ecbnh mua s\u1eafm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1a ch\u1ecdn s\u1ee3i t\u1ed1i \u01b0u th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i m\u00f4i tr\u01b0\u1eddng m\u1ea1ng v\u00e0 k\u1ef3 v\u1ecdng t\u0103ng tr\u01b0\u1edfng trong t\u01b0\u01a1ng lai.<\/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>M\u00f4i tr\u01b0\u1eddng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>L\u1ef1a ch\u1ecdn \u0111\u1ec1 xu\u1ea5t<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>L\u00fd do<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ph\u00f2ng th\u00ed nghi\u1ec7m t\u1ea1i nh\u00e0 \/ m\u1ea1ng quy m\u00f4 nh\u1ecf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><p>Up to 550 m (1,800 ft)<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft ng\u1eafn v\u00e0 nh\u1ea1y c\u1ea3m v\u1ec1 ng\u00e2n s\u00e1ch<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng khu\u00f4n vi\u00ean doanh nghi\u1ec7p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>OM3 ho\u1eb7c OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ebf ho\u1ea1ch b\u0103ng th\u00f4ng trong t\u01b0\u01a1ng lai<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 t\u1ed1t h\u01a1n cho c\u00e1c n\u00e2ng c\u1ea5p l\u00ean 40G \/ 100G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng si\u00eau quy m\u00f4 \/ \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>OM4 ho\u1eb7c OM5<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Y\u00eau c\u1ea7u t\u0103ng tr\u01b0\u1edfng b\u0103ng th\u00f4ng cao<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi nhi\u1ec1u t\u1ed5 ch\u1ee9c tri\u1ec3n khai c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1edbi ng\u00e0y nay, OM4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00ec n\u00f3 cung c\u1ea5p t\u00ednh linh ho\u1ea1t cao h\u01a1n cho c\u00e1c tri\u1ec3n khai Ethernet t\u1ed1c \u0111\u1ed9 cao trong t\u01b0\u01a1ng lai, \u0111\u1ed3ng th\u1eddi v\u1eabn duy tr\u00ec kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c m\u00f4-\u0111un quang \u0111a mode hi\u1ec7n c\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i c\u00f9ng, quy\u1ebft \u0111\u1ecbnh gi\u1eefa OM3 v\u00e0 OM4 n\u00ean c\u00e2n b\u1eb1ng gi\u1eefa c\u00e1c r\u00e0ng bu\u1ed9c ng\u00e2n s\u00e1ch, kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft d\u1ef1 ki\u1ebfn v\u00e0 chi\u1ebfn l\u01b0\u1ee3c n\u00e2ng c\u1ea5p m\u1ea1ng d\u00e0i h\u1ea1n, thay v\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o gi\u00e1 c\u00e1p ban \u0111\u1ea7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf OM3 so v\u1edbi OM4 so v\u1edbi OM5: B\u1ea3o \u0111\u1ea3m t\u01b0\u01a1ng lai v\u00e0 th\u1eddi \u0111i\u1ec3m n\u00ean ch\u1ecdn OM5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi b\u0103ng th\u00f4ng trung t\u00e2m d\u1eef li\u1ec7u ti\u1ebfp t\u1ee5c t\u0103ng, nhi\u1ec1u nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng kh\u00f4ng ch\u1ec9 so s\u00e1nh OM3 v\u1edbi OM4 m\u00e0 c\u00f2n \u0111\u00e1nh gi\u00e1 s\u1ee3i quang \u0111a mode OM5 nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p ti\u1ec1m n\u0103ng d\u00e0i h\u1ea1n. OM5 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u00e0 th\u1ebf h\u1ec7 m\u1edbi nh\u1ea5t c\u1ee7a s\u1ee3i quang \u0111a mode b\u0103ng th\u00f4ng r\u1ed9ng (WBMMF), \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c c\u00f4ng ngh\u1ec7 ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng ng\u1eafn (SWDM).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong khi OM3 v\u00e0 OM4 ch\u1ee7 y\u1ebfu ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ed9t b\u01b0\u1edbc s\u00f3ng \u0111\u01a1n l\u1ebb kho\u1ea3ng 850 nm, OM5 cho ph\u00e9p truy\u1ec1n \u0111\u1ed3ng th\u1eddi nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng trong kho\u1ea3ng t\u1eeb kho\u1ea3ng 850 nm \u0111\u1ebfn 950 nm qua c\u00f9ng m\u1ed9t s\u1ee3i. Kh\u1ea3 n\u0103ng n\u00e0y cho ph\u00e9p t\u1ed5ng th\u00f4ng l\u01b0\u1ee3ng cao h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n t\u0103ng s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, quy\u1ebft \u0111\u1ecbnh tri\u1ec3n khai OM5 ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o ki\u1ebfn tr\u00fac m\u1ea1ng, kh\u1ea3 n\u0103ng s\u1eb5n c\u00f3 c\u1ee7a b\u1ed9 thu ph\u00e1t v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 chi ph\u00ed.<\/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\/d678c44515114615be13f976384d4602.jpg\" alt=\"OM3 vs. OM4 vs. OM5: Future-Proofing and When to Choose OM5\" class=\"wp-image-3020\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d678c44515114615be13f976384d4602.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d678c44515114615be13f976384d4602-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d678c44515114615be13f976384d4602-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d678c44515114615be13f976384d4602-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d678c44515114615be13f976384d4602-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i th\u00edch v\u1ec1 OM5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i OM5 gi\u1eef nguy\u00ean k\u00edch th\u01b0\u1edbc l\u00f5i 50\/125 \u00b5m nh\u01b0 OM3 v\u00e0 OM4, ngh\u0129a l\u00e0 n\u00f3 v\u1eabn ho\u00e0n to\u00e0n t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c m\u00f4-\u0111un quang \u0111a mode v\u00e0 \u0111\u1ea7u n\u1ed1i hi\u1ec7n c\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh n\u1eb1m \u1edf d\u1ea3i th\u00f4ng m\u00f4-\u0111un b\u0103ng th\u00f4ng r\u1ed9ng c\u1ee7a n\u00f3, cho ph\u00e9p nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng truy\u1ec1n qua s\u1ee3i quang \u0111\u1ed3ng th\u1eddi. T\u00ednh n\u0103ng n\u00e0y h\u1ed7 tr\u1ee3 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\">B\u1ed9 thu ph\u00e1t SWDM<\/a>, k\u1ebft h\u1ee3p nhi\u1ec1u k\u00eanh quang tr\u00ean m\u1ed9t c\u1eb7p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh c\u1ee7a OM5 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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><p>Up to 550 m (1,800 ft)<\/p><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>OM4<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>OM5<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>K\u00edch th\u01b0\u1edbc l\u00f5i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>B\u0103ng th\u00f4ng m\u00f4-\u0111un<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~2000 MHz\u00b7km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~4700 MHz\u00b7km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u0103ng th\u00f4ng r\u1ed9ng (850\u2013953 nm)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u00e0u v\u1ecf b\u1ecdc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xanh n\u01b0\u1edbc bi\u1ec3n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00e0u xanh n\u01b0\u1edbc bi\u1ec3n \/ t\u00edm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xanh l\u00e1 c\u00e2y nh\u1ea1t<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 SWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>No<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ea1n ch\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh cho 100G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~150 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u01b0\u01a1ng t\u1ef1 OM4 (nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng \u0111a b\u01b0\u1edbc s\u00f3ng)<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ee3i th\u1ebf ch\u00ednh c\u1ee7a OM5 l\u00e0 hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng s\u1ee3i quang. B\u1eb1ng c\u00e1ch truy\u1ec1n \u0111\u1ed3ng th\u1eddi nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng, m\u1ea1ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c dung l\u01b0\u1ee3ng cao h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam c\u00e1c c\u1eb7p s\u1ee3i quang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean ch\u1ecdn OM5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m k\u1ef9 thu\u1eadt, vi\u1ec7c \u00e1p d\u1ee5ng OM5 v\u1eabn c\u00f2n kh\u00e1 ch\u1ecdn l\u1ecdc. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, OM4 ti\u1ebfp t\u1ee5c \u0111\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 y\u00eau c\u1ea7u c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c tri\u1ec3n khai doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OM5 th\u01b0\u1eddng tr\u1edf n\u00ean h\u1ea5p d\u1eabn trong c\u00e1c t\u00ecnh hu\u1ed1ng sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn v\u1edbi \u0111\u01b0\u1eddng \u0111i c\u00e1p h\u1ea1n ch\u1ebf c\u00f3 th\u1ec3 h\u01b0\u1edfng l\u1ee3i t\u1eeb c\u00f4ng ngh\u1ec7 SWDM v\u00ec n\u00f3 l\u00e0m gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i quang c\u1ea7n thi\u1ebft cho c\u00e1c li\u00ean k\u1ebft dung l\u01b0\u1ee3ng cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1eadp k\u1ebf ho\u1ea1ch c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u00e0i h\u1ea1n<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c thi\u1ebft k\u1ebf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u1ef1 ki\u1ebfn s\u1eed d\u1ee5ng trong 15\u201320 n\u0103m c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc OM5 nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u01b0\u1eddng \u0111i s\u1ee3i quang b\u1ecb gi\u1edbi h\u1ea1n v\u1ec1 b\u0103ng th\u00f4ng<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 vi\u1ec7c l\u1eafp \u0111\u1eb7t th\u00eam s\u1ee3i quang l\u00e0 kh\u00f3 kh\u0103n ho\u1eb7c t\u1ed1n k\u00e9m, vi\u1ec7c truy\u1ec1n d\u1eabn \u0111a b\u01b0\u1edbc s\u00f3ng c\u00f3 th\u1ec3 t\u0103ng dung l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u1ea7n m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng c\u00e1p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u0169ng c\u00f3 nh\u1eefng l\u00fd do khi\u1ebfn nhi\u1ec1u m\u1ea1ng v\u1eabn ti\u1ebfp t\u1ee5c l\u1ef1a ch\u1ecdn OM4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>OM4 h\u1ed7 tr\u1ee3 h\u1ea7u h\u1ebft c\u00e1c tri\u1ec3n khai Ethernet 40G v\u00e0 100G<\/p><\/li>\n\n\n\n<li><p>C\u00e1c m\u00f4-\u0111un quang SWDM \u00edt \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i h\u01a1n v\u00e0 \u0111\u1eaft h\u01a1n<\/p><\/li>\n\n\n\n<li><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng OM4 \u0111\u00e3 r\u1ea5t ph\u1ed5 bi\u1ebfn trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, OM4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 s\u1ef1 c\u00e2n b\u1eb1ng th\u1ef1c t\u1ebf gi\u1eefa hi\u1ec7u n\u0103ng, chi ph\u00ed v\u00e0 \u0111\u1ed9 tr\u01b0\u1edfng th\u00e0nh c\u1ee7a h\u1ec7 sinh th\u00e1i, trong khi OM5 ph\u1ee5c v\u1ee5 c\u00e1c m\u00f4i tr\u01b0\u1eddng chuy\u00ean bi\u1ec7t c\u1ee5 th\u1ec3 h\u01b0\u1edfng l\u1ee3i t\u1eeb vi\u1ec7c truy\u1ec1n d\u1eabn \u0111a b\u01b0\u1edbc s\u00f3ng tr\u00ean s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c t\u1ed5 ch\u1ee9c so s\u00e1nh c\u00e1p quang \u0111a ch\u1ebf \u0111\u1ed9 OM3 v\u00e0 OM4, quy\u1ebft \u0111\u1ecbnh s\u1ebd v\u1eabn n\u1eb1m gi\u1eefa hai lo\u1ea1i s\u1ee3i n\u00e0y. OM5 ch\u1ec9 tr\u1edf n\u00ean li\u00ean quan ch\u1ee7 y\u1ebfu khi c\u00e1c c\u00f4ng ngh\u1ec7 SWDM ti\u00ean ti\u1ebfn ho\u1eb7c c\u00e1c chi\u1ebfn l\u01b0\u1ee3c m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng d\u00e0i h\u1ea1n l\u00e0 m\u1ed9t ph\u1ea7n trong l\u1ed9 tr\u00ecnh thi\u1ebft k\u1ebf m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfaf OM3 so v\u1edbi OM4: C\u00e1c khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng cho tri\u1ec3n khai m\u1ea1ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e1p quang \u0111a ch\u1ebf \u0111\u1ed9 OM3 v\u00e0 OM4 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 then ch\u1ed1t: <strong>kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft, b\u0103ng th\u00f4ng m\u1ee5c ti\u00eau, ng\u00e2n s\u00e1ch v\u00e0 m\u00f4i tr\u01b0\u1eddng m\u1ea1ng<\/strong>. C\u1ea3 hai lo\u1ea1i s\u1ee3i \u0111\u1ec1u ho\u00e0n to\u00e0n t\u01b0\u01a1ng th\u00edch v\u00e0 h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, nh\u01b0ng OM4 cung c\u1ea5p b\u0103ng th\u00f4ng m\u00f4-\u0111un hi\u1ec7u d\u1ee5ng (EMB) cao h\u01a1n v\u00e0 kho\u1ea3ng c\u00e1ch xa h\u01a1n cho Ethernet 40G v\u00e0 100G, mang l\u1ea1i kh\u1ea3 n\u0103ng \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch trong t\u01b0\u01a1ng lai t\u1ed1t h\u01a1n cho c\u00e1c m\u1ea1ng \u0111ang ph\u00e1t tri\u1ec3n.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ab16410b6fb4efca373c777b7033473-1024x576.jpg\" alt=\"OM3 vs. OM4: Final Recommendations for Network Deployment\" class=\"wp-image-3021\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ab16410b6fb4efca373c777b7033473-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ab16410b6fb4efca373c777b7033473-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ab16410b6fb4efca373c777b7033473-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ab16410b6fb4efca373c777b7033473-18x10.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ab16410b6fb4efca373c777b7033473.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch l\u1ef1a ch\u1ecdn OM3 v\u00e0 OM4: Quy tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t khu\u00f4n kh\u1ed5 ra quy\u1ebft \u0111\u1ecbnh th\u1ef1c ti\u1ec5n gi\u00fap x\u00e1c \u0111\u1ecbnh lo\u1ea1i s\u1ee3i ph\u00f9 h\u1ee3p nh\u1ea5t cho tri\u1ec3n khai c\u1ee7a b\u1ea1n:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch<\/strong>:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Li\u00ean k\u1ebft ng\u1eafn (&lt;300 m cho 10G): OM3 l\u00e0 \u0111\u1ee7<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft d\u00e0i (&gt;300 m cho 10G ho\u1eb7c &gt;100 m cho 40G\/100G): N\u00ean d\u00f9ng OM4<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>B\u0103ng th\u00f4ng m\u1ee5c ti\u00eau<\/strong>:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>\u1ee8ng d\u1ee5ng 10G: OM3 ti\u1ebft ki\u1ec7m chi ph\u00ed<\/p><\/li>\n\n\n\n<li><p>\u1ee8ng d\u1ee5ng 40G ho\u1eb7c 100G: OM4 cung c\u1ea5p bi\u00ean \u0111\u1ed9 hi\u1ec7u n\u0103ng y\u00eau c\u1ea7u<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Ng\u00e2n s\u00e1ch<\/strong>:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Ng\u00e2n s\u00e1ch eo h\u1eb9p ho\u1eb7c m\u1ea1ng quy m\u00f4 nh\u1ecf: OM3<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p ho\u1eb7c trung t\u00e2m d\u1eef li\u1ec7u l\u00ean k\u1ebf ho\u1ea1ch n\u00e2ng c\u1ea5p: OM4<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>M\u00f4i tr\u01b0\u1eddng &amp; \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch trong t\u01b0\u01a1ng lai<\/strong>:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Ph\u00f2ng th\u00ed nghi\u1ec7m t\u1ea1i nh\u00e0 ho\u1eb7c v\u0103n ph\u00f2ng nh\u1ecf: OM3<\/p><\/li>\n\n\n\n<li><p>Trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao ho\u1eb7c tri\u1ec3n khai \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y: OM4 (ho\u1eb7c c\u00e2n nh\u1eafc OM5 cho c\u00e1c t\u00ecnh hu\u1ed1ng SWDM)<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Ph\u1ea3n h\u1ed3i th\u1ef1c t\u1ebf t\u1eeb k\u1ef9 s\u01b0 v\u1ec1 vi\u1ec7c tri\u1ec3n khai OM3 so v\u1edbi OM4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng th\u1ea3o lu\u1eadn v\u1ec1 vi\u1ec7c tri\u1ec3n khai OM3 so v\u1edbi OM4 tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n v\u00e0 b\u00e1o c\u00e1o th\u1ef1c \u0111\u1ecba:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00e1c ch\u1ee7 \u0111\u1ec1 tr\u00ean Reddit<\/strong> cho th\u1ea5y vi\u1ec7c tr\u1ed9n OM3 v\u00e0 OM4 l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c, nh\u01b0ng hi\u1ec7u n\u0103ng li\u00ean k\u1ebft s\u1ebd m\u1eb7c \u0111\u1ecbnh theo lo\u1ea1i s\u1ee3i c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p h\u01a1n. C\u00e1c k\u1ef9 s\u01b0 nh\u1ea5n m\u1ea1nh vi\u1ec7c ki\u1ec3m tra b\u1eb1ng m\u00e1y \u0111o OTDR v\u00e0 m\u00e1y \u0111o t\u1ed5n hao ch\u00e8n tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh.<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c b\u00e0i ki\u1ec3m tra trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/strong> ch\u1ee9ng minh r\u1eb1ng OM4 cho ph\u00e9p li\u00ean k\u1ebft 40G\/100G l\u00ean \u0111\u1ebfn 150 m, trong khi OM3 ch\u1ec9 \u0111\u1ea1t 100 m, x\u00e1c nh\u1eadn c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt do nh\u00e0 s\u1ea3n xu\u1ea5t cung c\u1ea5p.<\/p><\/li>\n\n\n\n<li><p><strong>B\u00e1o c\u00e1o th\u1ef1c \u0111\u1ecba<\/strong> t\u1eeb c\u00e1c tri\u1ec3n khai doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u cho th\u1ea5y OM4 gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c n\u00e2ng c\u1ea5p v\u00e0 gi\u1ea3m nhu c\u1ea7u thay th\u1ebf s\u1ee3i quang trong qu\u00e1 tr\u00ecnh m\u1edf r\u1ed9ng m\u1ea1ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00e0i nguy\u00ean v\u1ec1 c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 mua s\u1eafm m\u1ea1ng, vui l\u00f2ng tham kh\u1ea3o:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4-\u0111un SFP c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9 OM3 OM4 \u2013 <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00e0i nguy\u00ean b\u1ed5 sung:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Gi\u1ea3i th\u00edch v\u1ec1 s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9<\/strong>: <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide\/\" target=\"_self\">OM1 OM2 OM3 OM4 OM5<\/a><\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o ch\u00ednh th\u1ee9c<\/strong>: ISO\/IEC 11801, TIA-492AAAC, TIA-492AAAD<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n theo khu\u00f4n kh\u1ed5 n\u00e0y, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng c\u00f3 th\u1ec3 t\u1ef1 tin l\u1ef1a ch\u1ecdn lo\u1ea1i s\u1ee3i ph\u00f9 h\u1ee3p, t\u1ed1i \u01b0u h\u00f3a t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO), v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i cho c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n t\u1ea1i l\u1eabn t\u01b0\u01a1ng lai.<\/p>","protected":false},"excerpt":{"rendered":"<p>Compare OM3 vs OM4 multimode fiber: modal bandwidth, real-world distances for 10G\/40G\/100G, cost tradeoffs, compatibility tips, and engineer feedback from Reddit &#038; field tests.<\/p>","protected":false},"author":1,"featured_media":3022,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-3023","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\/3023","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=3023"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3023\/revisions"}],"predecessor-version":[{"id":10744,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3023\/revisions\/10744"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3022"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}