{"id":6035,"date":"2025-05-29T00:00:00","date_gmt":"2025-05-29T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide\/"},"modified":"2026-06-22T09:31:19","modified_gmt":"2026-06-22T09:31:19","slug":"om1-om2-om3-om4-om5-multimode-fiber-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide","title":{"rendered":"OM1 OM2 OM3 OM4 OM5 S\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ef765a06839b443ca22b19c24db16ab5.webp\" alt=\"Multimode Fiber\" class=\"wp-image-6032\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ef765a06839b443ca22b19c24db16ab5.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ef765a06839b443ca22b19c24db16ab5-300x169.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ef765a06839b443ca22b19c24db16ab5-1024x576.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ef765a06839b443ca22b19c24db16ab5-768x432.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ef765a06839b443ca22b19c24db16ab5-18x10.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ee3i quang \u0111a mode<\/strong> \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i. Trong s\u1ed1 c\u00e1c lo\u1ea1i c\u1ee7a n\u00f3, s\u1ee3i OM1 \u0111\u1ebfn OM5 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 hi\u1ec7u n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng. V\u00ed d\u1ee5, <strong><p>The table below provides a clear comparison of supported MMF types and their typical reach:<\/p><\/strong> h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 1 Gbps v\u1edbi d\u1ea3i th\u00f4ng 275 MHz, trong khi <strong>OM5<\/strong> x\u1eed l\u00fd 100 Gbps v\u1edbi d\u1ea3i th\u00f4ng 2 GHz. <strong><p>Up to 550 m (1,800 ft)<\/p><\/strong> and <strong>OM4<\/strong> n\u1ed5i b\u1eadt nh\u1edd t\u00ednh ph\u00f9 h\u1ee3p v\u1edbi trung t\u00e2m d\u1eef li\u1ec7u, h\u1ed7 tr\u1ee3 10 Gbps tr\u00ean kho\u1ea3ng c\u00e1ch l\u1ea7n l\u01b0\u1ee3t l\u00e0 300 m\u00e9t v\u00e0 400 m\u00e9t. OM5, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao, h\u1ed7 tr\u1ee3 nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng v\u00e0 l\u00fd t\u01b0\u1edfng cho m\u1ea1ng 100 Gbps v\u00e0 400 Gbps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u r\u00f5 nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang <strong>c\u00e1p quang \u0111a mode<\/strong>. Vi\u1ec7c ch\u1ecdn sai lo\u1ea1i c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf hi\u1ec7u qu\u1ea3 ho\u1eb7c kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai c\u1ee7a m\u1ea1ng. B\u1eb1ng c\u00e1ch n\u1eafm r\u00f5 kh\u1ea3 n\u0103ng c\u1ee7a t\u1eebng lo\u1ea1i s\u1ee3i, b\u1ea1n \u0111\u1ea3m b\u1ea3o m\u1ea1ng \u0111\u00e1p \u1ee9ng nhu c\u1ea7u hi\u1ec7n t\u1ea1i v\u00e0 th\u00edch nghi v\u1edbi y\u00eau c\u1ea7u t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>S\u1ee3i quang \u0111a mode<\/strong> OM1 \u0111\u1ebfn OM5 kh\u00e1c nhau v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 dung l\u01b0\u1ee3ng d\u1eef li\u1ec7u. OM1 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 1 Gbps, nh\u01b0ng <strong>OM5 x\u1eed l\u00fd l\u00ean \u0111\u1ebfn 400 Gbps<\/strong>. H\u00e3y ch\u1ecdn s\u1ee3i d\u1ef1a tr\u00ean nhu c\u1ea7u m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p><\/li><li><p><strong>K\u00edch th\u01b0\u1edbc l\u00f5i<\/strong> and <strong>m\u00e0u v\u1ecf b\u1ecdc<\/strong> gi\u00fap nh\u1eadn di\u1ec7n c\u00e1c lo\u1ea1i s\u1ee3i. OM1 v\u00e0 OM2 c\u00f3 v\u1ecf b\u1ecdc m\u00e0u cam. OM3 v\u00e0 OM4 c\u00f3 m\u00e0u xanh ng\u1ecdc, c\u00f2n OM5 c\u00f3 m\u00e0u xanh l\u00e1 chanh.<\/p><\/li><li><p>S\u1eed d\u1ee5ng OM3, OM4 ho\u1eb7c OM5 cho k\u1ebft n\u1ed1i nhanh h\u01a1n. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i, l\u00fd t\u01b0\u1edfng cho <strong>trung t\u00e2m d\u1eef li\u1ec7u<br><\/strong>.<\/p><\/li><li><p>H\u00e3y c\u00e2n nh\u1eafc kho\u1ea3ng c\u00e1ch m\u00e0 m\u1ea1ng c\u1ee7a b\u1ea1n c\u1ea7n \u0111\u1ea1t t\u1edbi. OM1 v\u00e0 OM2 ph\u00f9 h\u1ee3p cho kho\u1ea3ng c\u00e1ch ng\u1eafn. OM3, OM4 v\u00e0 OM5 t\u1ed1t h\u01a1n cho kho\u1ea3ng c\u00e1ch d\u00e0i.<\/p><\/li><li><p>L\u00ean k\u1ebf ho\u1ea1ch cho t\u01b0\u01a1ng lai b\u1eb1ng c\u00e1ch ch\u1ecdn <strong>s\u1ee3i OM4 ho\u1eb7c OM5<\/strong>. Ch\u00fang h\u1ed7 tr\u1ee3 <strong>c\u00f4ng ngh\u1ec7 m\u1edbi<\/strong> v\u00e0 ph\u00e1t tri\u1ec3n c\u00f9ng nhu c\u1ea7u m\u1edf r\u1ed9ng c\u1ee7a m\u1ea1ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>T\u00ecm hi\u1ec3u v\u1ec1 s\u1ee3i quang \u0111a mode<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ee3i quang \u0111a mode<\/strong> l\u00e0 m\u1ed9t lo\u1ea1i s\u1ee3i quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho <strong>truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u kho\u1ea3ng c\u00e1ch ng\u1eafn<\/strong> N\u00f3 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u00f5i l\u1edbn h\u01a1n, th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 50 \u0111\u1ebfn 100 micromet, cho ph\u00e9p nhi\u1ec1u tia s\u00e1ng (hay c\u00f2n g\u1ecdi l\u00e0 c\u00e1c mode) truy\u1ec1n \u0111\u1ed3ng th\u1eddi qua n\u00f3. Thi\u1ebft k\u1ebf n\u00e0y khi\u1ebfn <strong>c\u00e1p quang \u0111a mode<\/strong> tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao tr\u00ean kho\u1ea3ng c\u00e1ch ng\u1eafn, ch\u1eb3ng h\u1ea1n nh\u01b0 trong t\u00f2a nh\u00e0 ho\u1eb7c m\u1ea1ng khu\u00f4n vi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc l\u00f5i l\u1edbn h\u01a1n c\u1ee7a s\u1ee3i quang \u0111a mode cho ph\u00e9p n\u00f3 d\u1eabn nhi\u1ec1u \u00e1nh s\u00e1ng h\u01a1n so v\u1edbi s\u1ee3i \u0111\u01a1n mode. \u0110\u1eb7c \u0111i\u1ec3m n\u00e0y h\u1ed7 tr\u1ee3 vi\u1ec7c s\u1eed d\u1ee5ng ngu\u1ed3n s\u00e1ng <strong>LED chi ph\u00ed th\u1ea5p<\/strong>, do \u0111\u00f3 l\u00e0 <strong>gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed<\/strong> cho nhi\u1ec1u nhu c\u1ea7u m\u1ea1ng. Tuy nhi\u00ean, vi\u1ec7c lan truy\u1ec1n \u0111\u1ed3ng th\u1eddi nhi\u1ec1u mode \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc mode, l\u00e0m gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch truy\u1ec1n v\u00e0 b\u0103ng th\u00f4ng so v\u1edbi s\u1ee3i quang \u0111\u01a1n mode. M\u1eb7c d\u00f9 c\u00f3 h\u1ea1n ch\u1ebf n\u00e0y, s\u1ee3i quang \u0111a mode v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho <strong>m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao<\/strong> nh\u1edd hi\u1ec7u qu\u1ea3 v\u00e0 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng.<\/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\/9ff6b7a48ca74518b4a58e3af1e9289b.jpg\" alt=\"OM1 vs OM2 vs OM3 vs OM4 vs OM5\" class=\"wp-image-6033\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9ff6b7a48ca74518b4a58e3af1e9289b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9ff6b7a48ca74518b4a58e3af1e9289b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9ff6b7a48ca74518b4a58e3af1e9289b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9ff6b7a48ca74518b4a58e3af1e9289b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9ff6b7a48ca74518b4a58e3af1e9289b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>So s\u00e1nh nhanh gi\u1eefa s\u1ee3i quang \u0111a mode v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/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><strong>\u0110\u1eb7c t\u00ednh<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i quang \u0111a mode (OM1\u2013OM5)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i quang \u0111\u01a1n mode (OS1\/OS2)<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u01b0\u1eddng k\u00ednh l\u00f5i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u1edbn h\u01a1n (50 \u00b5m ho\u1eb7c 62,5 \u00b5m)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nh\u1ecf h\u01a1n (9 \u00b5m)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u01b0\u1eddng \u0111i c\u1ee7a \u00e1nh s\u00e1ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec1u mode<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t mode<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>D\u1ea3i th\u00f4ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p h\u01a1n (t\u1ed1i \u0111a 28.000 MHz\u00b7km \u0111\u1ed1i v\u1edbi OM5)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t cao (v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng gi\u1edbi h\u1ea1n)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ng\u1eafn h\u01a1n (th\u01b0\u1eddng t\u1ed1i \u0111a 550 m \u0111\u1ed1i v\u1edbi 10G)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t d\u00e0i (nhi\u1ec1u kil\u00f4m\u00e9t)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ngu\u1ed3n s\u00e1ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110i-\u1ed1t ph\u00e1t s\u00e1ng LED (OM1\/OM2) ho\u1eb7c laser VCSEL (OM3 tr\u1edf l\u00ean)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110i-\u1ed1t laser<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Chi ph\u00ed (c\u00e1p v\u00e0 b\u1ed9 thu ph\u00e1t)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Lower<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea1m vi ng\u1eafn (trung t\u00e2m d\u1eef li\u1ec7u, t\u00f2a nh\u00e0)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n xa (vi\u1ec5n th\u00f4ng, m\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb MAN, khu\u00f4n vi\u00ean tr\u01b0\u1eddng)<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m c\u1ee7a s\u1ee3i quang \u0111a mode (MMF) cho ph\u1ea1m vi ng\u1eafn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Chi ph\u00ed h\u1ec7 th\u1ed1ng th\u1ea5p h\u01a1n:<\/strong> <a target=\"\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>B\u1ed9 thu ph\u00e1t quang<\/strong><\/a> (nh\u01b0 <strong>SFP+, QSFP28<br><\/strong>) d\u00e0nh cho MMF r\u1ebb h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c phi\u00ean b\u1ea3n d\u00e0nh cho SMF. <strong>LINK-PP cung c\u1ea5p m\u1ed9t lo\u1ea1t thi\u1ebft b\u1ecb thu ph\u00e1t MMF <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/buy-mmf.htm\"><strong>ti\u1ebft ki\u1ec7m chi ph\u00ed<\/strong><\/a>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>D\u1ec5 l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec h\u01a1n:<\/strong> L\u00f5i l\u1edbn h\u01a1n gi\u00fap vi\u1ec7c n\u1ed1i \u0111\u1ea7u n\u1ed1i d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 dung sai c\u0103n ch\u1ec9nh \u00edt nghi\u00eam ng\u1eb7t h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ph\u1ea1m vi \u0111\u1ee7 \u0111\u00e1p \u1ee9ng:<\/strong> <strong>MMF<\/strong> d\u1ec5 d\u00e0ng bao ph\u1ee7 ph\u1ea7n l\u1edbn kho\u1ea3ng c\u00e1ch k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9 t\u00f2a nh\u00e0 v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u01b0\u1eddng c\u00e1p x\u01b0\u01a1ng s\u1ed1ng \u0111a ng\u01b0\u1eddi d\u00f9ng:<\/strong> Truy\u1ec1n \u0111\u1ed3ng th\u1eddi nhi\u1ec1u t\u00edn hi\u1ec7u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1edbi t\u1ed5n hao c\u00f4ng su\u1ea5t t\u1ed1i thi\u1ec3u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H\u1ed7 tr\u1ee3 giao th\u1ee9c:<\/strong> L\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ed1t l\u00f5i s\u1eed d\u1ee5ng Ethernet, InfiniBand v\u00e0 c\u00e1c giao th\u1ee9c Internet.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>S\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i: Kh\u00e1c bi\u1ec7t v\u1ec1 m\u1eb7t v\u1eadt l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c lo\u1ea1i s\u1ee3i quang OM1 \u0111\u1ebfn OM5 n\u1eb1m \u1edf c\u1ea5u t\u1ea1o v\u1eadt l\u00fd v\u00e0 hi\u1ec7u n\u0103ng \u1ee9ng d\u1ee5ng t\u01b0\u01a1ng \u1ee9ng:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kh\u00e1c bi\u1ec7t v\u1ec1 m\u1eb7t v\u1eadt l\u00fd<\/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;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i s\u1ee3i<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u01b0\u1eddng k\u00ednh l\u00f5i\/v\u1ecf b\u1ecdc<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>M\u00e0u v\u1ecf b\u1ecdc<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Ngu\u1ed3n s\u00e1ng<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>B\u0103ng th\u00f4ng (850 nm)<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>The table below provides a clear comparison of supported MMF types and their typical reach:<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>62,5\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cam<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LED<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>200 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>Up to 275 m (900 ft)<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cam<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LED<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>500 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>Up to 550 m (1,800 ft)<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xanh n\u01b0\u1edbc bi\u1ec3n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>VCSEL (Laser)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2000 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>OM4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xanh n\u01b0\u1edbc bi\u1ec3n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>VCSEL (Laser)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4700 MHz\u00b7km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>OM5<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50\/125 \u00b5m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Xanh l\u00e1 c\u00e2y nh\u1ea1t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>VCSEL (Laser) SWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>000 MHz\u00b7km*<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">*B\u0103ng th\u00f4ng OM5 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh cho <strong>\u0110a ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng ng\u1eafn (SWDM)<\/strong> <strong>(SWDM) <\/strong>s\u1eed d\u1ee5ng c\u00e1c b\u01b0\u1edbc s\u00f3ng 850 nm, 880 nm, 910 nm v\u00e0 940 nm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ti\u1ebfn h\u00f3a n\u1ed5i b\u1eadt:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>K\u00edch th\u01b0\u1edbc l\u00f5i:<\/strong> OM1 s\u1eed d\u1ee5ng l\u00f5i l\u1edbn h\u01a1n 62,5 \u00b5m; OM2\u2013OM5 s\u1eed d\u1ee5ng l\u00f5i hi\u1ec7u qu\u1ea3 h\u01a1n 50 \u00b5m, l\u00e0m gi\u1ea3m s\u1ef1 t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ngu\u1ed3n s\u00e1ng:<\/strong> OM1\/OM2 d\u1ef1a v\u00e0o <strong>LED<\/strong>. T\u1eeb OM3 tr\u1edf \u0111i l\u00e0 <em>\u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser<\/em> (LOMMF) \u0111\u1ec3 s\u1eed d\u1ee5ng v\u1edbi <strong>Laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t h\u1ed1c \u0111\u1ee9ng (VCSEL)<\/strong>, cho ph\u00e9p t\u1ed1c \u0111\u1ed9 cao h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>B\u0103ng th\u00f4ng:<\/strong> T\u0103ng \u0111\u00e1ng k\u1ec3 t\u1eeb OM1 (200 MHz\u00b7km) l\u00ean OM5 (28.000 MHz\u00b7km \u0111\u1ed1i v\u1edbi SWDM), \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch h\u1ed7 tr\u1ee3.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kh\u00e1c bi\u1ec7t v\u1ec1 \u1ee9ng d\u1ee5ng: T\u1ed1c \u0111\u1ed9 &amp; Ph\u1ea1m vi<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c bi\u1ec7t th\u1ef1c ti\u1ec5n nh\u1ea5t l\u00e0 kho\u1ea3ng c\u00e1ch m\u00e0 m\u1ed7i lo\u1ea1i s\u1ee3i quang c\u00f3 th\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady \u1edf c\u00e1c t\u1ed1c \u0111\u1ed9 Ethernet kh\u00e1c nhau:<\/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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i s\u1ee3i<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Fast Ethernet (100 M)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>1GbE<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>10GbE<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>40GbE\/100GbE (BiDi\/Parallel)<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>The table below provides a clear comparison of supported MMF types and their typical reach:<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>275 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>33 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>Up to 275 m (900 ft)<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>82 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>Up to 550 m (1,800 ft)<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>300 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>OM4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>150 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>OM5<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\/<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\/<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>150 m (100G-SWDM4)<\/strong> \/<strong>440 m (40G-SWDM4)<\/strong><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eefng \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>S\u1eed d\u1ee5ng cho h\u1ec7 th\u1ed1ng c\u0169 (OM1\/OM2):<\/strong> Ch\u1ee7 y\u1ebfu l\u00e0 <strong>cho t\u1ed1c \u0111\u1ed9 1 Gbps<\/strong> ho\u1eb7c th\u1ea5p h\u01a1n trong ph\u1ea1m vi t\u1ee7 rack ho\u1eb7c c\u00e1c k\u1ebft n\u1ed1i r\u1ea5t ng\u1eafn. Tr\u00e1nh s\u1eed d\u1ee5ng cho c\u00e1c tri\u1ec3n khai m\u1edbi t\u1eeb 10G tr\u1edf l\u00ean.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Gi\u1ea3i ph\u00e1p ch\u1ee7 l\u1ef1c cho 10G (OM3\/OM4):<\/strong> OM3 cung c\u1ea5p gi\u1ea3i ph\u00e1p 10G hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed l\u00ean \u0111\u1ebfn 300 m. OM4 m\u1edf r\u1ed9ng ph\u1ea1m vi 10G l\u00ean 550 m v\u00e0 l\u00e0 ti\u00eau chu\u1ea9n c\u01a1 b\u1ea3n cho 40G\/100G s\u1eed d\u1ee5ng quang h\u1ecdc song song (nh\u01b0 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482749.htm\"><strong>LQ-M8540-SR4C<\/strong><\/a>) l\u00ean \u0111\u1ebfn 150 m.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u00e1p \u1ee9ng t\u01b0\u01a1ng lai (OM5):<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho <strong>, trong \u0111\u00f3:<\/strong> c\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 SWDM4 v\u00e0 BiDi. OM5 <strong>s\u1eed d\u1ee5ng \u00edt s\u1ee3i h\u01a1n<\/strong> \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 40G\/100G\/400G tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n so v\u1edbi OM4 (v\u00ed d\u1ee5: 440 m \u0111\u1ed1i v\u1edbi 40G-SWDM4 so v\u1edbi 150 m \u0111\u1ed1i v\u1edbi quang h\u1ecdc song song). N\u00f3 t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi OM4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>L\u1ef1a ch\u1ecdn s\u1ee3i quang \u0111a mode ph\u00f9 h\u1ee3p<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>M\u1ea1ng k\u1ebf th\u1eeba (1G):<\/strong> OM1 ho\u1eb7c OM2 c\u00f3 th\u1ec3 \u0111\u1ee7 d\u00f9ng, nh\u01b0ng c\u1ea7n c\u00e2n nh\u1eafc nhu c\u1ea7u t\u01b0\u01a1ng lai.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Tri\u1ec3n khai m\u1edbi cho t\u1ed1c \u0111\u1ed9 10G:<\/strong> OM3 mang l\u1ea1i gi\u00e1 tr\u1ecb t\u1ed1t cho c\u00e1c li\u00ean k\u1ebft \u2264 300 m. OM4 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho c\u00e1c li\u00ean k\u1ebft l\u00ean \u0111\u1ebfn 550 m ho\u1eb7c n\u1ebfu kh\u1ea3 n\u0103ng n\u00e2ng c\u1ea5p l\u00ean 40G\/100G trong t\u01b0\u01a1ng lai l\u00e0 c\u00f3 th\u1ec3.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Tri\u1ec3n khai m\u1edbi cho t\u1ed1c \u0111\u1ed9 40G\/100G\/400G (\u0111\u1eb7c bi\u1ec7t l\u00e0 m\u1ea1ng m\u1edbi ho\u00e0n to\u00e0n \u2014 greenfield):<\/strong> <strong>OM4 l\u00e0 m\u1ee9c t\u1ed1i thi\u1ec3u ph\u1ed5 bi\u1ebfn hi\u1ec7n nay.<\/strong> <strong>OM5 l\u00e0 l\u1ef1a ch\u1ecdn chi\u1ebfn l\u01b0\u1ee3c, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai<\/strong>, \u0111\u1eb7c bi\u1ec7t cho c\u00e1c kho\u1ea3ng c\u00e1ch v\u01b0\u1ee3t qu\u00e1 150 m ho\u1eb7c khi vi\u1ec7c gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i quang l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. OM5 t\u1ed1i \u0111a h\u00f3a tu\u1ed5i th\u1ecd \u0111\u1ea7u t\u01b0 c\u00e1p c\u1ee7a b\u1ea1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>Xu h\u01b0\u1edbng s\u1ee3i quang \u0111a mode v\u00e0 t\u01b0\u01a1ng lai thu\u1ed9c v\u1ec1 OM5<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhu c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 cao h\u01a1n (100G, 400G, 800G) trong trung t\u00e2m d\u1eef li\u1ec7u l\u00e0 kh\u00f4ng ng\u1eebng ngh\u1ec9. S\u1ee3i quang \u0111a mode (MMF) \u0111ang ph\u00e1t tri\u1ec3n theo h\u01b0\u1edbng <strong>t\u1ed5n hao th\u1ea5p h\u01a1n<\/strong>, <strong>b\u0103ng th\u00f4ng cao h\u01a1n<\/strong>, and <strong>c\u00e1c k\u1ef9 thu\u1eadt \u0111a b\u01b0\u1edbc s\u00f3ng<\/strong> nh\u01b0 SWDM v\u00e0 BiDi.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>OM1\/OM2:<\/strong> Ch\u1ee7 y\u1ebfu d\u00e0nh cho h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba, d\u00f9ng cho m\u1ea1ng 1G trong ph\u00f2ng thi\u1ebft b\u1ecb.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>OM3\/OM4:<\/strong> Chi\u1ebfm \u01b0u th\u1ebf trong c\u00e1p trung t\u00e2m d\u1eef li\u1ec7u cho t\u1ed1c \u0111\u1ed9 10G\/40G\/100G s\u1eed d\u1ee5ng quang h\u1ecdc song song. OM4 l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn hi\u1ec7n nay cho c\u00e1c tri\u1ec3n khai m\u1edbi y\u00eau c\u1ea7u 40G\/100G trong ph\u1ea1m vi 150 m.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>OM5:<\/strong> \u0110\u1ea1i di\u1ec7n cho t\u01b0\u01a1ng lai. L\u1ee3i th\u1ebf ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 <strong>s\u1eed d\u1ee5ng \u00edt s\u1ee3i quang h\u01a1n<\/strong> \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 cao (40G\/100G\/400G) tr\u00ean <strong>kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n<\/strong> so v\u1edbi OM4 b\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng SWDM\/BiDi. N\u00f3 cung c\u1ea5p kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 linh ho\u1ea1t v\u01b0\u1ee3t tr\u1ed9i, gi\u1ea3m y\u00eau c\u1ea7u v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i quang. M\u1eb7c d\u00f9 chi ph\u00ed hi\u1ec7n t\u1ea1i cao h\u01a1n OM4, nh\u01b0ng <strong>vi\u1ec7c gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i quang v\u00e0 b\u1ed9 thu ph\u00e1t \u0111i k\u00e8m<\/strong> (nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/buy-bidi.htm\"><strong>BiDi<br><\/strong> <strong>b\u1ed9 thu ph\u00e1t quang<\/strong><\/a>) mang l\u1ea1i t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO) h\u1ea5p d\u1eabn, \u0111\u1eb7c bi\u1ec7t khi n\u00e2ng c\u1ea5p trong t\u01b0\u01a1ng lai. OM5 s\u1eb5n s\u00e0ng tr\u1edf th\u00e0nh x\u01b0\u01a1ng s\u1ed1ng cho c\u00e1c chu\u1ea9n 100G, 400G v\u00e0 th\u1eadm ch\u00ed 1TbE trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <strong>OM1, OM2, OM3, OM4 v\u00e0 OM5<\/strong> <strong>s\u1ee3i quang \u0111a mode<\/strong> l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a m\u1ea1ng c\u1ee7a b\u1ea1n. M\u1ed7i lo\u1ea1i s\u1ee3i c\u00f3 nh\u1eefng \u0111\u1eb7c t\u00ednh ri\u00eang bi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 k\u00edch th\u01b0\u1edbc l\u00f5i, b\u0103ng th\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch nh\u1ea5t \u0111\u1ecbnh, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, OM1 ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba, trong khi OM5 n\u1ed5i b\u1eadt trong m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn nh\u01b0 <strong>ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng d\u1ea3i s\u00f3ng ng\u1eafn (SWDM)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i s\u1ee3i quang \u0111a mode \u0111\u1ea3m b\u1ea3o m\u1ea1ng c\u1ee7a b\u1ea1n v\u1eadn h\u00e0nh hi\u1ec7u qu\u1ea3 v\u00e0 th\u00edch nghi \u0111\u01b0\u1ee3c v\u1edbi nhu c\u1ea7u t\u01b0\u01a1ng lai. \u0110\u1ed1i v\u1edbi m\u1ea1ng quy m\u00f4 nh\u1ecf, OM1 ho\u1eb7c OM2 c\u00f3 th\u1ec3 \u0111\u1ee7 d\u00f9ng. \u0110\u1ed1i v\u1edbi trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c m\u1ea1ng doanh nghi\u1ec7p, OM3 v\u00e0 OM4 cung c\u1ea5p k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao \u0111\u00e1ng tin c\u1eady. OM5 l\u00fd t\u01b0\u1edfng cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng th\u1ebf h\u1ec7 ti\u1ebfp theo, h\u1ed7 tr\u1ee3 c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 <strong>5G v\u00e0 IoT<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 s\u1ee3i quang \u0111a mode r\u1ea5t h\u1ee9a h\u1eb9n. Th\u1ecb tr\u01b0\u1eddng d\u1ef1 ki\u1ebfn s\u1ebd t\u0103ng tr\u01b0\u1edfng m\u1ea1nh, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi nhu c\u1ea7u v\u1ec1 c\u00e1c m\u1ea1ng truy\u1ec1n th\u00f4ng nhanh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n. C\u00e1c \u0111\u1ed5i m\u1edbi trong s\u1ee3i quang \u0111a mode s\u1ebd \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u m\u1edbi n\u1ed5i nh\u01b0 th\u00e0nh ph\u1ed1 th\u00f4ng minh, IoT v\u00e0 \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, \u0111\u1ea3m b\u1ea3o c\u00e1c gi\u1ea3i ph\u00e1p v\u1eefng ch\u1eafc v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho k\u1ebft n\u1ed1i to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>FAQ<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa s\u1ee3i OM1 v\u00e0 OM5 l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OM1 c\u00f3 k\u00edch th\u01b0\u1edbc l\u00f5i l\u1edbn h\u01a1n (62,5 micron) v\u00e0 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u th\u1ea5p h\u01a1n, ph\u00f9 h\u1ee3p cho c\u00e1c h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba. OM5, v\u1edbi l\u00f5i 50 micron, h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 cao h\u01a1n v\u00e0 nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng, l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea1n c\u00f3 th\u1ec3 tr\u1ed9n c\u00e1c lo\u1ea1i s\u1ee3i OM kh\u00e1c nhau trong m\u1ed9t m\u1ea1ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n n\u00ean tr\u00e1nh tr\u1ed9n c\u00e1c lo\u1ea1i s\u1ee3i OM. M\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c t\u00ednh hi\u1ec7u n\u0103ng ri\u00eang, nh\u01b0 b\u0103ng th\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch nh\u1ea5t \u0111\u1ecbnh. Vi\u1ec7c tr\u1ed9n l\u1eabn c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn suy hao t\u00edn hi\u1ec7u v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t. Lu\u00f4n l\u1ef1a ch\u1ecdn lo\u1ea1i s\u1ee3i ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee7a m\u1ea1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 nh\u1eadn di\u1ec7n c\u00e1c lo\u1ea1i s\u1ee3i OM trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn di\u1ec7n s\u1ee3i OM qua m\u00e0u s\u1eafc v\u1ecf b\u1ecdc. OM1 v\u00e0 OM2 c\u00f3 v\u1ecf m\u00e0u cam, OM3 v\u00e0 OM4 c\u00f3 v\u1ecf m\u00e0u xanh ng\u1ecdc (aqua), c\u00f2n OM5 c\u00f3 v\u1ecf m\u00e0u xanh l\u00e1 chanh (lime green). Ki\u1ec3m tra k\u00edch th\u01b0\u1edbc l\u00f5i v\u00e0 nh\u00e3n d\u00e1n c\u0169ng gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ee3i OM5 c\u00f3 t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi OM3 v\u00e0 OM4 kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, OM5 <strong>t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<\/strong> v\u1edbi OM3 v\u00e0 OM4. N\u00f3 h\u1ed7 tr\u1ee3 c\u00f9ng c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0ng b\u1ed5 sung c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 <strong>ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng d\u1ea3i s\u00f3ng ng\u1eafn (SWDM)<\/strong> nh\u1eb1m n\u00e2ng cao hi\u1ec7u qu\u1ea3 trong c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Khi n\u00e0o n\u00ean ch\u1ecdn OM4 thay v\u00ec OM3?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y ch\u1ecdn OM4 n\u1ebfu m\u1ea1ng c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch xa h\u01a1n ho\u1eb7c t\u1ed1c \u0111\u1ed9 cao h\u01a1n. OM4 h\u1ed7 tr\u1ee3 10 Gbps tr\u00ean kho\u1ea3ng c\u00e1ch 550 m\u00e9t, trong khi OM3 ch\u1ec9 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 n\u00e0y tr\u00ean 300 m\u00e9t. OM4 c\u0169ng mang l\u1ea1i kh\u1ea3 n\u0103ng \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng lai t\u1ed1t h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng n\u00e2ng cao.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>L\u1eddi khuy\u00ean<\/strong>: Lu\u00f4n \u0111\u00e1nh gi\u00e1 nhu c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch c\u1ee7a m\u1ea1ng tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn lo\u1ea1i s\u1ee3i.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" >Xem Th\u00eam<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">T\u1ea7m quan tr\u1ecdng c\u1ee7a gi\u00e1m s\u00e1t k\u1ef9 thu\u1eadt s\u1ed1 trong b\u1ed9 thu ph\u00e1t quang \u2013 Gi\u1ea3i th\u00edch chi ti\u1ebft<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/tosa-in-optical-modules-importance\/\">Kh\u00e1m ph\u00e1 vai tr\u00f2 c\u1ee7a TOSA trong module quang v\u00e0 \u00fd ngh\u0129a c\u1ee7a n\u00f3<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/role-of-optical-transceiver-modules\/\">Tham gia c\u00f9ng ch\u00fang t\u00f4i trong tr\u1ea3i nghi\u1ec7m c\u1ed9ng \u0111\u1ed3ng LINK-PP \u0111\u1ea7y h\u1ee9ng kh\u1edfi<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c lo\u1ea1i c\u00e1p quang \u0111a mode OM1, OM2, OM3, OM4 v\u00e0 OM5, bao g\u1ed3m d\u1ea3i th\u00f4ng, kho\u1ea3ng c\u00e1ch v\u00e0 \u1ee9ng d\u1ee5ng cho c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"author":1,"featured_media":6034,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-6035","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\/6035","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=6035"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/6035\/revisions"}],"predecessor-version":[{"id":11480,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/6035\/revisions\/11480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/6034"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=6035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=6035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=6035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}