{"id":2788,"date":"2026-03-30T00:00:00","date_gmt":"2026-03-30T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp-850nm-vs-1310nm-differences\/"},"modified":"2026-06-22T03:43:08","modified_gmt":"2026-06-22T03:43:08","slug":"sfp-850nm-vs-1310nm-differences","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/sfp-850nm-vs-1310nm-differences","title":{"rendered":"SFP 850nm vs. 1310nm: C\u00e1c Kh\u00e1c Bi\u1ec7t Ch\u00ednh \u0110\u01b0\u1ee3c Gi\u1ea3i Th\u00edch"},"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\/3367c2a81cb849499bc6f9631fc016e1.jpg\" alt=\"SFP 850nm vs. 1310nm: Key Differences Explained\" class=\"wp-image-2777\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3367c2a81cb849499bc6f9631fc016e1.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3367c2a81cb849499bc6f9631fc016e1-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3367c2a81cb849499bc6f9631fc016e1-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3367c2a81cb849499bc6f9631fc016e1-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3367c2a81cb849499bc6f9631fc016e1-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ea1ng quang s\u1ee3i, vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t quang ph\u00f9 h\u1ee3p kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t s\u1edf th\u00edch k\u1ef9 thu\u1eadt\u2014m\u00e0 c\u00f2n l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh then ch\u1ed1t tr\u1ef1c ti\u1ebfp \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a li\u00ean k\u1ebft, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, chi ph\u00ed tri\u1ec3n khai v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u1ec1 l\u00e2u d\u00e0i. Trong s\u1ed1 c\u00e1c l\u1ef1a ch\u1ecdn th\u01b0\u1eddng \u0111\u01b0\u1ee3c so s\u00e1nh nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng Ethernet v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u l\u00e0 SFP 850nm so v\u1edbi 1310nm\u2014m\u1ed9t ch\u1ee7 \u0111\u1ec1 ti\u1ebfp t\u1ee5c t\u1ea1o ra l\u01b0\u1ee3ng t\u00ecm ki\u1ebfm cao v\u00e0 m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c m\u1ea1nh trong ph\u1ea7n \u201cNg\u01b0\u1eddi d\u00f9ng c\u0169ng h\u1ecfi\u201d tr\u00ean Google.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede c\u1ea5p \u0111\u1ed9 c\u01a1 b\u1ea3n, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">SFP 850nm<\/a> and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491474.htm\">SFP 1310nm<\/a> c\u00e1c m\u00f4-\u0111un \u0111\u1ec1 c\u1eadp \u0111\u1ebfn b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1p quang. Tuy nhi\u00ean, \u0111\u1eb1ng sau \u0111\u1ecbnh ngh\u0129a \u0111\u01a1n gi\u1ea3n n\u00e0y l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt s\u00e2u s\u1eafc h\u01a1n nhi\u1ec1u: m\u1ea1ng c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eabn tr\u00ean c\u00e1p quang \u0111a mode (MMF) c\u1ef1 ly ng\u1eafn hay c\u00e1p quang \u0111\u01a1n mode (SMF) c\u1ef1 ly xa. S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ecdi kh\u00eda c\u1ea1nh, t\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p cho \u0111\u1ebfn t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00f4-\u0111un v\u00e0 t\u1ed5ng chi ph\u00ed tri\u1ec3n khai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, c\u00e1c m\u00f4-\u0111un SFP 850nm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong <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 LAN doanh nghi\u1ec7p v\u00e0 c\u00e1c k\u1ebft n\u1ed1i ng\u1eafn gi\u1eefa switch v\u00e0 m\u00e1y ch\u1ee7, n\u01a1i hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i m\u1eadt \u0111\u1ed9 cao l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u. Ng\u01b0\u1ee3c l\u1ea1i, c\u00e1c m\u00f4-\u0111un SFP 1310nm th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn cho m\u1ea1ng khu\u00f4n vi\u00ean, c\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 v\u00e0 k\u1ebft n\u1ed1i quy m\u00f4 \u0111\u00f4 th\u1ecb, n\u01a1i \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9 c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng, s\u1ef1 nh\u1ea7m l\u1eabn v\u1eabn ph\u1ed5 bi\u1ebfn gi\u1eefa c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng, ng\u01b0\u1eddi mua thi\u1ebft b\u1ecb CNTT v\u00e0 c\u00e1c nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng. Nhi\u1ec1u v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1ed7i li\u00ean k\u1ebft, suy hao b\u1ea5t ng\u1edd ho\u1eb7c l\u1ef1a ch\u1ecdn sai m\u00f4-\u0111un\u2014b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c hi\u1ec3u sai li\u1ec7u c\u00e1c thi\u1ebft b\u1ecb quang 850nm v\u00e0 1310nm c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau hay \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i v\u1edbi lo\u1ea1i c\u00e1p kh\u00f4ng ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m lo\u1ea1i b\u1ecf s\u1ef1 kh\u00f4ng ch\u1eafc ch\u1eafn \u0111\u00f3. Trong c\u00e1c ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c m\u00f4-\u0111un SFP 850nm v\u00e0 1310nm, bao g\u1ed3m t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1p, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, c\u1ea5u tr\u00fac chi ph\u00ed v\u00e0 c\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai th\u1ef1c t\u1ebf. B\u1ea1n c\u0169ng s\u1ebd h\u1ecdc c\u00e1ch tr\u00e1nh nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn \u0111\u00fang <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">m\u00f4-\u0111un quang<\/a> d\u1ef1a tr\u00ean c\u00e1c y\u00eau c\u1ea7u thi\u1ebft k\u1ebf m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\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 \u0111\u01b0\u1ee3c m\u1ed9t hi\u1ec3u bi\u1ebft r\u00f5 r\u00e0ng \u1edf c\u1ea5p \u0111\u1ed9 k\u1ef9 thu\u1eadt v\u1ec1 b\u01b0\u1edbc s\u00f3ng SFP n\u00e0o l\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u1ea1ng c\u1ee7a m\u00ecnh\u2014gi\u00fap b\u1ea1n \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh tri\u1ec3n khai nhanh h\u01a1n, an to\u00e0n h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 850nm so v\u1edbi 1310nm trong c\u00e1c m\u00f4-\u0111un SFP ngh\u0129a l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP 850nm so v\u1edbi 1310nm, \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ea7u ti\u00ean l\u00e0 hi\u1ec3u r\u00f5 \u201c850nm\u201d v\u00e0 \u201c1310nm\u201d th\u1ef1c ch\u1ea5t \u0111\u1ea1i di\u1ec7n cho \u0111i\u1ec1u g\u00ec trong vi\u1ec5n th\u00f4ng quang s\u1ee3i. C\u00e1c gi\u00e1 tr\u1ecb n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi SFP (Small Form-factor Pluggable) <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1p quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 s\u1ef1 kh\u00e1c bi\u1ec7t c\u00f3 v\u1ebb ch\u1ec9 l\u00e0 m\u1ed9t ch\u00eanh l\u1ec7ch nh\u1ecf v\u1ec1 m\u1eb7t con s\u1ed1, nh\u01b0ng trong k\u1ef9 thu\u1eadt quang h\u1ecdc, n\u00f3 x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a m\u00e0 t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n \u0111i, lo\u1ea1i c\u00e1p n\u00e0o c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v\u00e0 c\u00e1ch h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh trong m\u00f4i tr\u01b0\u1eddng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e533d59ad02496d98e1cd8b1d61f515.jpg\" alt=\"What Does 850nm vs. 1310nm Mean in SFP Modules?\" class=\"wp-image-2778\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e533d59ad02496d98e1cd8b1d61f515.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e533d59ad02496d98e1cd8b1d61f515-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e533d59ad02496d98e1cd8b1d61f515-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e533d59ad02496d98e1cd8b1d61f515-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e533d59ad02496d98e1cd8b1d61f515-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u01a1 s\u1edf v\u1ec1 b\u01b0\u1edbc s\u00f3ng quang h\u1ecdc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00f4ng ngh\u1ec7 c\u00e1p quang, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n b\u1eb1ng t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng thay v\u00ec t\u00edn hi\u1ec7u \u0111i\u1ec7n. C\u00e1c t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng n\u00e0y \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng nanomet (nm), \u0111\u1ea1i l\u01b0\u1ee3ng x\u00e1c \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng c\u1ee7a laser b\u00ean trong m\u00f4-\u0111un SFP.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/850nm-optical-transceivers-for-short-reach-mmf-transmission\/\"><strong>B\u01b0\u1edbc s\u00f3ng 850nm<\/strong><\/a>: \u00c1nh s\u00e1ng c\u1eadn h\u1ed3ng ngo\u1ea1i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi c\u00e1p quang \u0111a mode (MMF)<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/1310nm-optical-module-applications-performance-comparison\/\"><strong>B\u01b0\u1edbc s\u00f3ng 1310nm<\/strong><\/a>: B\u01b0\u1edbc s\u00f3ng h\u1ed3ng ngo\u1ea1i d\u00e0i h\u01a1n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi c\u00e1p quang \u0111\u01a1n mode (SMF)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean l\u00fd c\u1ed1t l\u00f5i r\u1ea5t \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>C\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau v\u1edbi c\u1ea5u tr\u00fac s\u1ee3i quang, t\u1eeb \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed5n hao t\u00edn hi\u1ec7u v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn.<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n nh\u01b0 850nm c\u00f3 xu h\u01b0\u1edbng t\u00e1n s\u1eafc nhanh h\u01a1n trong s\u1ee3i quang, do \u0111\u00f3 ph\u00f9 h\u1ee3p v\u1edbi kho\u1ea3ng c\u00e1ch ng\u1eafn. C\u00e1c b\u01b0\u1edbc s\u00f3ng d\u00e0i h\u01a1n nh\u01b0 1310nm ch\u1ecbu t\u1ed5n hao th\u1ea5p h\u01a1n<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/attenuation-in-optical-transceiver-management-and-solutions\/\"> suy hao<\/a>, cho ph\u00e9p t\u00edn hi\u1ec7u truy\u1ec1n \u0111i xa h\u01a1n m\u00e0 \u00edt b\u1ecb suy gi\u1ea3m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1ch b\u01b0\u1edbc s\u00f3ng laser \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eabn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc s\u00f3ng b\u00ean trong m\u00f4-\u0111un SFP \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ba y\u1ebfu t\u1ed1 hi\u1ec7u n\u0103ng ch\u00ednh:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed5n hao (m\u1ea5t t\u00edn hi\u1ec7u)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm ch\u1ecbu t\u1ed5n hao cao h\u01a1n trong s\u1ee3i quang so v\u1edbi 1310nm<\/p><\/li><li><p>1310nm duy tr\u00ec c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00e1n s\u1eafc <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/dispersion-in-optical-transceiver-signal-clarity-and-management\/\"><strong>T\u00e1n s\u1eafc<\/strong><\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1p quang \u0111a mode, n\u01a1i nhi\u1ec1u \u0111\u01b0\u1eddng \u0111i c\u1ee7a \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc<\/p><\/li><li><p>1310nm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1p quang \u0111\u01a1n mode, n\u01a1i \u00e1nh s\u00e1ng truy\u1ec1n theo m\u1ed9t \u0111\u01b0\u1eddng duy nh\u1ea5t, l\u00e0m gi\u1ea3m m\u00e9o t\u00edn hi\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u1ea1m vi t\u1ed1i \u0111a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm: t\u1ed1i \u01b0u cho truy\u1ec1n d\u1eabn c\u1ef1 ly ng\u1eafn (th\u01b0\u1eddng l\u00ean t\u1edbi ~550 m\u00e9t trong c\u00e1c \u1ee9ng d\u1ee5ng Ethernet)<\/p><\/li><li><p>1310nm: t\u1ed1i \u01b0u cho truy\u1ec1n d\u1eabn c\u1ef1 ly trung b\u00ecnh \u0111\u1ebfn xa (th\u00f4ng th\u01b0\u1eddng l\u00e0 10 km, 20 km ho\u1eb7c h\u01a1n t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb quang)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, b\u01b0\u1edbc s\u00f3ng x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 \u201cs\u1ea1ch\u201d v\u00e0 \u201cxa\u201d m\u00e0 t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n \u0111i tr\u01b0\u1edbc khi tr\u1edf n\u00ean kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao c\u00e1c m\u00f4-\u0111un SFP s\u1eed d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb nm kh\u00e1c nhau<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c thi\u1ebft b\u1ecb quang h\u1ecdc ph\u1ed5 d\u1ee5ng\u2014m\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng c\u1ee5 th\u1ec3. C\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau t\u1ed3n t\u1ea1i v\u00ec kh\u00f4ng c\u00f3 m\u1ed9t thi\u1ebft k\u1ebf quang h\u1ecdc n\u00e0o c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 bao qu\u00e1t t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i c\u00e1p v\u00e0 kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb nm kh\u00e1c nhau cho ph\u00e9p nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf m\u1ea1ng t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u n\u0103ng theo ba c\u00e1ch ch\u00ednh:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00f9 h\u1ee3p v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho c\u00e1p quang \u0111a mode (l\u00f5i l\u1edbn, chi ph\u00ed hi\u1ec7u qu\u1ea3, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/short-range-sfp-module-distance-specs-guide\/\">c\u1ef1 ly ng\u1eafn<\/a>)<\/p><\/li><li><p>1310nm \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho c\u00e1p quang \u0111\u01a1n mode (l\u00f5i nh\u1ecf, \u0111\u1ed9 ch\u00ednh x\u00e1c cao, <a target=\"_self\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/long-distance-transceiver-types-reach-selection-guide\/\">c\u1ef1 ly xa<\/a>)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e2n b\u1eb1ng chi ph\u00ed v\u00e0 hi\u1ec7u n\u0103ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c module 850nm s\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\">Laser VCSEL<\/a>, r\u1ebb h\u01a1n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao<\/p><\/li><li><p>C\u00e1c module 1310nm s\u1eed d\u1ee5ng ngu\u1ed3n laser ch\u00ednh x\u00e1c h\u01a1n (v\u00ed d\u1ee5:, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dfb-laser-definition\/\">laser DFB<\/a>), \u0111\u1eaft h\u01a1n nh\u01b0ng mang l\u1ea1i hi\u1ec7u n\u0103ng cao h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ed7 tr\u1ee3 c\u00e1c quy m\u00f4 m\u1ea1ng kh\u00e1c nhau<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm = k\u1ebft n\u1ed1i c\u1ee5c b\u1ed9 (trung t\u00e2m d\u1eef li\u1ec7u, li\u00ean k\u1ebft gi\u1eefa c\u00e1c rack)<\/p><\/li><li><p>1310nm = k\u1ebft n\u1ed1i m\u1edf r\u1ed9ng (khu\u00f4n vi\u00ean, \u0111\u00f4 th\u1ecb, m\u1ea1ng gi\u1eefa c\u00e1c t\u00f2a nh\u00e0)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ph\u00e2n t\u00e1ch b\u01b0\u1edbc s\u00f3ng n\u00e0y l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf c\u01a1 b\u1ea3n trong m\u1ea1ng quang h\u1ecdc. N\u00f3 \u0111\u1ea3m b\u1ea3o k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 ch\u1ecdn module ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch, lo\u1ea1i c\u00e1p quang v\u00e0 r\u00e0ng bu\u1ed9c chi ph\u00ed, thay v\u00ec ph\u1ee5 thu\u1ed9c v\u00e0o gi\u1ea3i ph\u00e1p \u201cm\u1ed9t k\u00edch c\u1ee1 ph\u00f9 h\u1ee3p v\u1edbi t\u1ea5t c\u1ea3\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft nh\u1eefng kh\u00e1c bi\u1ec7t k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">1310nm<\/a>, bao g\u1ed3m kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1p quang, hi\u1ec7u n\u0103ng kho\u1ea3ng c\u00e1ch v\u00e0 c\u1ea5u tr\u00fac chi ph\u00ed trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 So s\u00e1nh SFP 850nm v\u00e0 1310nm: Nh\u1eefng kh\u00e1c bi\u1ec7t k\u1ef9 thu\u1eadt ch\u00ednh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi so s\u00e1nh SFP 850nm v\u00e0 1310nm, \u0111i\u1ec3m kh\u00e1c bi\u1ec7t quan tr\u1ecdng nh\u1ea5t kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf ch\u00ednh b\u01b0\u1edbc s\u00f3ng, m\u00e0 c\u00f2n \u1edf c\u00e1ch b\u01b0\u1edbc s\u00f3ng \u0111\u00f3 t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ea1 t\u1ea7ng c\u00e1p quang, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 hi\u1ec7u n\u0103ng t\u1ed5ng th\u1ec3 c\u1ee7a m\u1ea1ng. Nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y quy\u1ebft \u0111\u1ecbnh vi\u1ec7c module c\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c li\u00ean k\u1ebft trung t\u00e2m d\u1eef li\u1ec7u c\u1ef1 ly ng\u1eafn hay cho c\u00e1c m\u1ea1ng khu\u00f4n vi\u00ean v\u00e0 \u0111\u00f4 th\u1ecb c\u1ef1 ly d\u00e0i.<\/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\/b1c5b90bbf114a04870f8ff3882df433.jpg\" alt=\"SFP 850nm vs. 1310nm: Key Technical Differences\" class=\"wp-image-2779\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b1c5b90bbf114a04870f8ff3882df433.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b1c5b90bbf114a04870f8ff3882df433-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b1c5b90bbf114a04870f8ff3882df433-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b1c5b90bbf114a04870f8ff3882df433-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b1c5b90bbf114a04870f8ff3882df433-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Lo\u1ea1i c\u00e1p quang (MMF so v\u1edbi SMF)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng kh\u00e1c bi\u1ec7t quan tr\u1ecdng nh\u1ea5t gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 1310nm l\u00e0 lo\u1ea1i c\u00e1p quang quang h\u1ecdc m\u00e0 ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478231.htm\"><strong>Module SFP 850nm<\/strong><\/a><strong> \u2192 C\u00e1p quang \u0111a mode (MMF)<\/strong><\/p><ul><li><p>Th\u01b0\u1eddng d\u00f9ng v\u1edbi c\u00e1p OM2, OM3 ho\u1eb7c OM4<\/p><\/li><li><p>\u0110\u01b0\u1eddng k\u00ednh l\u00f5i l\u1edbn (50\/62,5 \u03bcm)<\/p><\/li><li><p>Cho ph\u00e9p nhi\u1ec1u \u0111\u01b0\u1eddng \u0111i c\u1ee7a \u00e1nh s\u00e1ng truy\u1ec1n \u0111\u1ed3ng th\u1eddi<\/p><\/li><li><p>L\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng c\u1ef1 ly ng\u1eafn, m\u1eadt \u0111\u1ed9 cao<\/p><\/li><\/ul><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478919.htm\"><strong>Module SFP 1310nm<\/strong><\/a><strong> \u2192 C\u00e1p quang \u0111\u01a1n mode (SMF)<\/strong><\/p><ul><li><p>Th\u01b0\u1eddng d\u00f9ng v\u1edbi c\u00e1p OS1 ho\u1eb7c OS2<\/p><\/li><li><p>\u0110\u01b0\u1eddng k\u00ednh l\u00f5i r\u1ea5t nh\u1ecf (kho\u1ea3ng 9 \u03bcm)<\/p><\/li><li><p>Ch\u1ec9 cho ph\u00e9p m\u1ed9t \u0111\u01b0\u1eddng \u0111i c\u1ee7a \u00e1nh s\u00e1ng (truy\u1ec1n d\u1eabn \u0111\u01a1n mode)<\/p><\/li><li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng c\u1ef1 ly d\u00e0i v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n:<br\/>850nm = \u201c\u0111\u01b0\u1eddng cao t\u1ed1c\u201d r\u1ed9ng v\u1edbi nhi\u1ec1u l\u00e0n \u00e1nh s\u00e1ng<br\/>1310nm = \u0111\u01b0\u1eddng cao t\u1ed1c m\u1ed9t l\u00e0n v\u1edbi nhi\u1ec5u t\u1ed1i thi\u1ec3u<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >So s\u00e1nh kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn theo kho\u1ea3ng c\u00e1ch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kho\u1ea3ng c\u00e1ch l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 th\u1ef1c ti\u1ec5n nh\u1ea5t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-choose-sfp-module-guide\/\">Vi\u1ec7c l\u1ef1a ch\u1ecdn SFP<br><\/a>, v\u00e0 \u1edf \u0111\u00e2y s\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 \u0111\u00e1ng k\u1ec3.<br>.<\/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>Danh m\u1ee5c<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP 850nm (s\u1ee3i quang \u0111a mode)<br><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP 1310nm (s\u1ee3i quang \u0111\u01a1n mode)<br><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea1m vi kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>300m \u2013 550m (t\u00f9y thu\u1ed9c v\u00e0o c\u1ea5p \u0111\u1ed9 s\u1ee3i quang)<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10km \u2013 40km+ (t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i module)<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111a mode (OM2 \/ OM3 \/ OM4)<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111\u01a1n mode (OS1 \/ OS2)<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">C\u00e1c h\u1ea1n ch\u1ebf m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c xem x\u00e9t n\u1ebfu s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\">10GBASE-SR<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">1000BASE-LX<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\">10GBASE-LR<\/a><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ee5c \u0111\u00edch truy\u1ec1n d\u1eabn<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i ng\u1eafn, m\u1eadt \u0111\u1ed9 cao<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng t\u1ea7m xa<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00fd t\u01b0\u1edfng<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u, k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c gi\u00e1 rack, k\u1ebft n\u1ed1i trong c\u00f9ng t\u00f2a nh\u00e0<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng khu\u00f4n vi\u00ean, k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0, truy c\u1eadp \u0111\u00f4 th\u1ecb<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>H\u00e0nh vi t\u00edn hi\u1ec7u<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 t\u00e1n s\u1eafc cao h\u01a1n theo kho\u1ea3ng c\u00e1ch<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 suy hao th\u1ea5p h\u01a1n, truy\u1ec1n d\u1eabn \u1ed5n \u0111\u1ecbnh \u1edf kho\u1ea3ng c\u00e1ch xa<br><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec3m c\u1ea7n ghi nh\u1edb: 850nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho kho\u1ea3ng c\u00e1ch ng\u1eafn, trong khi 1310nm \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 \u0111\u1ea1t ph\u1ea1m vi m\u1edf r\u1ed9ng.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ed9 suy hao t\u00edn hi\u1ec7u v\u00e0 hi\u1ec7u n\u0103ng<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 suy hao t\u00edn hi\u1ec7u (m\u1ea5t c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u theo kho\u1ea3ng c\u00e1ch) l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt ph\u00e2n bi\u1ec7t quan tr\u1ecdng kh\u00e1c.<br>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>B\u01b0\u1edbc s\u00f3ng 850nm<\/strong><\/p><ul><li><p>T\u1ef7 l\u1ec7 suy hao cao h\u01a1n trong s\u1ee3i quang<br><\/p><\/li><li><p>Ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u h\u01a1n b\u1edfi t\u00e1n s\u1eafc mode trong s\u1ee3i quang \u0111a mode<br><\/p><\/li><li><p>Hi\u1ec7u n\u0103ng ph\u1ee5 thu\u1ed9c r\u1ea5t cao v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng s\u1ee3i quang v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t<br><\/p><\/li><\/ul><\/li><li><p><strong>B\u01b0\u1edbc s\u00f3ng 1310nm<\/strong><\/p><ul><li><p>\u0110\u1ed9 suy hao th\u1ea5p h\u01a1n theo kho\u1ea3ng c\u00e1ch<br><\/p><\/li><li><p>Truy\u1ec1n d\u1eabn \u1ed5n \u0111\u1ecbnh h\u01a1n nh\u1edd ch\u1ebf \u0111\u1ed9 truy\u1ec1n \u0111\u01a1n mode<br><\/p><\/li><li><p>Ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u tr\u00ean h\u00e0ng kil\u00f4m\u00e9t<br><\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tri\u1ec3n khai th\u1ef1c t\u1ebf, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c li\u00ean k\u1ebft 1310nm th\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh h\u01a1n \u1edf kho\u1ea3ng c\u00e1ch xa, trong khi c\u00e1c li\u00ean k\u1ebft 850nm \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho hi\u1ec7u n\u0103ng chi ph\u00ed th\u1ea5p \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn n\u01a1i \u0111\u1ed9 suy hao l\u00e0 t\u1ed1i thi\u1ec3u.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 chi ph\u00ed trong tri\u1ec3n khai th\u1ef1c t\u1ebf<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chi ph\u00ed th\u01b0\u1eddng l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh khi l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 1310nm, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c tri\u1ec3n khai quy m\u00f4 l\u1edbn.<br>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Module SFP 850nm (chi ph\u00ed th\u1ea5p h\u01a1n)<br><\/strong><\/p><ul><li><p>S\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 laser VCSEL, chi ph\u00ed s\u1ea3n xu\u1ea5t r\u1ebb h\u01a1n<br><\/p><\/li><li><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang \u0111a mode \u00edt t\u1ed1n k\u00e9m h\u01a1n<br><\/p><\/li><li><p>L\u00fd t\u01b0\u1edfng cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 c\u1ed5ng cao nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u<br><\/p><\/li><\/ul><\/li><li><p><strong>Module SFP 1310nm (chi ph\u00ed cao h\u01a1n)<br><\/strong><\/p><ul><li><p>S\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 laser ti\u00ean ti\u1ebfn h\u01a1n (v\u00ed d\u1ee5: laser DFB)<br><\/p><\/li><li><p>Vi\u1ec7c l\u1eafp \u0111\u1eb7t s\u1ee3i quang \u0111\u01a1n mode t\u1ed1n k\u00e9m h\u01a1n<br><\/p><\/li><li><p>Chi ph\u00ed m\u1ed7i li\u00ean k\u1ebft cao h\u01a1n nh\u01b0ng cho ph\u00e9p k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch xa<br><\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 g\u00f3c \u0111\u1ed9 t\u1ed5ng chi ph\u00ed:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm = chi ph\u00ed CAPEX th\u1ea5p h\u01a1n cho m\u1ea1ng kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li><li><p>1310nm = chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n nh\u01b0ng t\u1ef7 su\u1ea5t ho\u00e0n v\u1ed1n (ROI) t\u1ed1t h\u01a1n tr\u00ean kho\u1ea3ng c\u00e1ch xa<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 1310nm v\u1ec1 b\u1ea3n ch\u1ea5t l\u00e0 s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i gi\u1eefa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kho\u1ea3ng c\u00e1ch so v\u1edbi chi ph\u00ed<\/p><\/li><li><p>T\u00ednh linh ho\u1ea1t c\u1ee7a s\u1ee3i \u0111a mode so v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a s\u1ee3i \u0111\u01a1n mode<\/p><\/li><li><p>Hi\u1ec7u qu\u1ea3 \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn so v\u1edbi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u1edf kho\u1ea3ng c\u00e1ch xa<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 thi\u1ebft k\u1ebf m\u1ed9t m\u1ea1ng v\u1eeba ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1eeba t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch s\u1ee3i quang \u2014 l\u00fd do v\u00ec sao s\u1ee3i \u0111a mode (MMF) v\u00e0 s\u1ee3i \u0111\u01a1n mode (SMF) kh\u00f4ng th\u1ec3 coi l\u00e0 ho\u00e1n \u0111\u1ed5i cho nhau trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, v\u00e0 \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi c\u00f3 s\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch<strong>.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch s\u1ee3i quang: Gi\u1ea3i th\u00edch s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa s\u1ee3i \u0111a mode v\u00e0 s\u1ee3i \u0111\u01a1n mode<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh quan tr\u1ecdng nh\u1ea5t (v\u00e0 c\u0169ng th\u01b0\u1eddng b\u1ecb hi\u1ec3u sai nh\u1ea5t) c\u1ee7a <strong>SFP 850nm so v\u1edbi 1310nm<\/strong> l\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch s\u1ee3i quang. Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i kh\u00f4ng b\u1eaft ngu\u1ed3n t\u1eeb ch\u00ednh module SFP, m\u00e0 do vi\u1ec7c gh\u00e9p n\u1ed1i sai gi\u1eefa <strong>b\u01b0\u1edbc s\u00f3ng v\u00e0 lo\u1ea1i s\u1ee3i quang<\/strong>. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa s\u1ee3i quang \u0111a mode (MMF) v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF) l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 thi\u1ebft k\u1ebf m\u1ea1ng quang \u1ed5n \u0111\u1ecbnh.<\/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\/94c36d31f13744d1b1c4eece89c60197.jpg\" alt=\"Fiber Compatibility: Multimode vs. Single Mode Explained\" class=\"wp-image-2780\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/94c36d31f13744d1b1c4eece89c60197.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/94c36d31f13744d1b1c4eece89c60197-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/94c36d31f13744d1b1c4eece89c60197-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/94c36d31f13744d1b1c4eece89c60197-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/94c36d31f13744d1b1c4eece89c60197-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ea1i sao 850nm y\u00eau c\u1ea7u s\u1eed d\u1ee5ng s\u1ee3i quang \u0111a mode (OM2\/OM3\/OM4)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 850nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide\/\">c\u00e1p quang \u0111a mode<\/a> (MMF) nh\u01b0 OM2, OM3 v\u00e0 OM4. \u0110i\u1ec1u n\u00e0y l\u00e0 do \u0111\u1eb7c t\u00ednh lan truy\u1ec1n \u00e1nh s\u00e1ng b\u00ean trong l\u00f5i s\u1ee3i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a s\u1ee3i quang \u0111a mode:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u00edch th\u01b0\u1edbc l\u00f5i: 50 ho\u1eb7c 62,5 micromet<\/p><\/li><li><p>Cho ph\u00e9p nhi\u1ec1u \u0111\u01b0\u1eddng truy\u1ec1n \u00e1nh s\u00e1ng (c\u00e1c mode) lan truy\u1ec1n \u0111\u1ed3ng th\u1eddi<\/p><\/li><li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede b\u01b0\u1edbc s\u00f3ng 850nm, h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 thu ph\u00e1t quang s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 laser VCSEL (laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t h\u1ed1c d\u1ecdc), r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi truy\u1ec1n d\u1eabn \u0111a mode. L\u00f5i s\u1ee3i r\u1ed9ng h\u01a1n cho ph\u00e9p \u00e1nh s\u00e1ng \u0111i v\u00e0o d\u01b0\u1edbi nhi\u1ec1u g\u00f3c kh\u00e1c nhau v\u00e0 ph\u1ea3n x\u1ea1 n\u1ed9i t\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y c\u0169ng g\u00e2y ra m\u1ed9t h\u1ea1n ch\u1ebf:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Nhi\u1ec1u \u0111\u01b0\u1eddng truy\u1ec1n \u00e1nh s\u00e1ng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc mode, l\u00e0m gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch v\u00e0 l\u00e0m t\u0103ng m\u00e9o t\u00edn hi\u1ec7u tr\u00ean c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i h\u01a1n.<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec v\u1eady, 850nm ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/data-center-interconnect-definition-benefits-and-role-of-optical-modules\/\">Li\u00ean k\u1ebft n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u<\/a><\/p><\/li><li><p>Chuy\u1ec3n m\u1ea1ch gi\u1eefa c\u00e1c t\u1ee7 rack<\/p><\/li><li><p>M\u00f4i tr\u01b0\u1eddng LAN m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u1eb7p s\u1ee3i quang \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>OM2 \u2192 kho\u1ea3ng c\u00e1ch ng\u1eafn cho h\u1ec7 th\u1ed1ng c\u0169<\/p><\/li><li><p>OM3 \/ OM4 \u2192 m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ea1i sao 1310nm \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho s\u1ee3i quang \u0111\u01a1n mode (OS1\/OS2)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 1310nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/single-mode-fiber-os1-vs-os2-comparison-indoor-outdoor-use\/\">s\u1ee3i quang \u0111\u01a1n mode<\/a> (SMF), th\u01b0\u1eddng l\u00e0 c\u00e1c c\u1ea5p \u0111\u1ed9 OS1 v\u00e0 OS2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c t\u00ednh c\u1ee7a s\u1ee3i quang \u0111\u01a1n mode:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u00edch th\u01b0\u1edbc l\u00f5i: ~9 micron<\/p><\/li><li><p>Ch\u1ec9 c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn quang (m\u1ed9t ch\u1ebf \u0111\u1ed9 lan truy\u1ec1n duy nh\u1ea5t)<\/p><\/li><li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i b\u01b0\u1edbc s\u00f3ng 1310nm, ch\u00f9m s\u00e1ng t\u1eadp trung h\u01a1n v\u00e0 di chuy\u1ec3n theo m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng, h\u1eb9p xuy\u00ean qua l\u00f5i s\u1ee3i quang. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 v\u1ed1n t\u1ed3n t\u1ea1i trong s\u1ee3i quang \u0111a mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a s\u1ef1 k\u1ebft h\u1ee3p 1310nm + SMF:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed5n hao r\u1ea5t th\u1ea5p tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i<\/p><\/li><li><p>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh t\u00edn hi\u1ec7u cao<\/p><\/li><li><p>H\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn xa (10 km\u201340 km tr\u1edf l\u00ean, t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb quang)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y khi\u1ebfn 1310nm tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng khu\u00f4n vi\u00ean<\/p><\/li><li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li><li><p>M\u1ea1ng \u0111\u00f4 th\u1ecb (metro) v\u00e0 m\u1ea1ng truy nh\u1eadp<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c lo\u1ea1i s\u1ee3i quang ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>OS1<\/strong> \u2192 d\u00f9ng trong nh\u00e0, c\u00e1c \u0111o\u1ea1n s\u1ee3i \u0111\u01a1n mode ng\u1eafn<\/p><\/li><li><p><strong>OS2<\/strong> \u2192 d\u00f9ng ngo\u00e0i tr\u1eddi, tri\u1ec3n khai t\u1ed1i \u01b0u cho kho\u1ea3ng c\u00e1ch xa<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec x\u1ea3y ra khi s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf nghi\u00eam tr\u1ecdng nh\u1ea5t trong tri\u1ec3n khai s\u1ee3i quang l\u00e0 vi\u1ec7c gh\u00e9p sai b\u01b0\u1edbc s\u00f3ng SFP v\u1edbi lo\u1ea1i s\u1ee3i quang. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn suy gi\u1ea3m hi\u1ec7u n\u0103ng m\u1ed9t ph\u1ea7n ho\u1eb7c m\u1ea5t ho\u00e0n to\u00e0n li\u00ean k\u1ebft.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" >\u274c T\u00ecnh hu\u1ed1ng 1: Module SFP 850nm tr\u00ean s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00edn hi\u1ec7u quang kh\u00f4ng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh \u0111\u00fang v\u1edbi thi\u1ebft k\u1ebf l\u00f5i s\u1ee3i<\/p><\/li><li><p>Hi\u1ec7u su\u1ea5t gh\u00e9p quang c\u1ef1c k\u1ef3 th\u1ea5p<\/p><\/li><li><p>K\u1ebft qu\u1ea3:<\/p><ul><li><p>T\u00edn hi\u1ec7u li\u00ean k\u1ebft y\u1ebfu ho\u1eb7c kh\u00f4ng c\u00f3<\/p><\/li><li><p>Li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/p><\/li><li><p>T\u1ed5n hao ch\u00e8n cao<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" >\u274c T\u00ecnh hu\u1ed1ng 2: Module SFP 1310nm tr\u00ean s\u1ee3i quang \u0111a mode (MMF)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u00f5i s\u1ee3i quang \u0111a mode qu\u00e1 l\u1edbn so v\u1edbi quang h\u1ecdc \u0111\u01a1n mode<\/p><\/li><li><p>Hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc \u00e1nh s\u00e1ng tr\u1edf n\u00ean kh\u00f3 d\u1ef1 \u0111o\u00e1n<\/p><\/li><li><p>K\u1ebft qu\u1ea3:<\/p><ul><li><p>Hi\u1ec7u n\u0103ng gi\u1ea3m ho\u1eb7c k\u1ebft n\u1ed1i ch\u1eadp ch\u1eddn<\/p><\/li><li><p>\u0110\u1ed9 suy gi\u1ea3m t\u00edn hi\u1ec7u t\u0103ng d\u1ea7n theo kho\u1ea3ng c\u00e1ch<\/p><\/li><li><p>C\u00f3 th\u1ec3 g\u00e2y hi\u1ec7n t\u01b0\u1ee3ng \"flapping\" li\u00ean k\u1ebft trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u1ea1y c\u1ea3m<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" >\u26a0\ufe0f Ghi ch\u00fa quan tr\u1ecdng t\u1eeb c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 \u201cho\u1ea1t \u0111\u1ed9ng\u201d t\u1ea1m th\u1eddi, nh\u01b0ng ch\u00fang:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u00f4ng tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/p><\/li><li><p>Kh\u00f4ng \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi t\u1ea3i<\/p><\/li><li><p>Kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng trong m\u1ea1ng s\u1ea3n xu\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed1i quan h\u1ec7 gi\u1eefa b\u01b0\u1edbc s\u00f3ng v\u00e0 lo\u1ea1i s\u1ee3i quang kh\u00f4ng th\u1ec3 thay th\u1ebf l\u1eabn nhau\u2014\u0111\u00e2y l\u00e0 quy t\u1eafc gh\u00e9p n\u1ed1i k\u1ef9 thu\u1eadt nghi\u00eam ng\u1eb7t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm \u2192 s\u1ee3i quang \u0111a mode (OM2\/OM3\/OM4)<\/p><\/li><li><p>1310nm \u2192 s\u1ee3i quang \u0111\u01a1n mode (OS1\/OS2)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c gh\u00e9p \u0111\u00fang \u0111\u1ea3m b\u1ea3o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang \u1ed5n \u0111\u1ecbnh<\/p><\/li><li><p>T\u1ed5n hao t\u00edn hi\u1ec7u t\u1ed1i thi\u1ec3u<\/p><\/li><li><p>\u0110\u1ed9 tin c\u1eady m\u1ea1ng d\u00e0i h\u1ea1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 kho\u1ea3ng c\u00e1ch v\u00e0 hi\u1ec7u n\u0103ng trong c\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai th\u1ef1c t\u1ebf, bao g\u1ed3m c\u00e1ch 850nm v\u00e0 1310nm ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 khu\u00f4n vi\u00ean tr\u01b0\u1eddng h\u1ecdc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 So s\u00e1nh kho\u1ea3ng c\u00e1ch v\u00e0 hi\u1ec7u n\u0103ng (H\u01b0\u1edbng d\u1eabn tri\u1ec3n khai th\u1ef1c t\u1ebf)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai m\u1ea1ng th\u1ef1c t\u1ebf, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa SFP 850nm v\u00e0 1310nm th\u01b0\u1eddng \u00edt d\u1ef1a tr\u00ean l\u00fd thuy\u1ebft h\u01a1n m\u00e0 ch\u1ee7 y\u1ebfu ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh hi\u1ec7u n\u0103ng trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf. M\u1eb7c d\u00f9 c\u1ea3 hai b\u01b0\u1edbc s\u00f3ng \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u1ea1ng Ethernet, h\u00e0nh vi th\u1ef1c t\u1ebf c\u1ee7a ch\u00fang kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 khi \u00e1p d\u1ee5ng cho trung t\u00e2m d\u1eef li\u1ec7u, khu\u00f4n vi\u00ean doanh nghi\u1ec7p v\u00e0 c\u00e1c li\u00ean k\u1ebft \u0111\u00f4 th\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00e1nh thi\u1ebft k\u1ebf d\u01b0 th\u1eeba (chi ph\u00ed kh\u00f4ng c\u1ea7n thi\u1ebft) ho\u1eb7c thi\u1ebft k\u1ebf thi\u1ebfu s\u00f3t (li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c m\u1ea5t k\u1ebft n\u1ed1i).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7bf343a7d484d99a51d8be8b52354da.jpg\" alt=\"Distance and Performance Comparison (Real Deployment Guide)\" class=\"wp-image-2781\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7bf343a7d484d99a51d8be8b52354da.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7bf343a7d484d99a51d8be8b52354da-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7bf343a7d484d99a51d8be8b52354da-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7bf343a7d484d99a51d8be8b52354da-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7bf343a7d484d99a51d8be8b52354da-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u1ea1m vi \u0111i\u1ec3n h\u00ecnh c\u1ee7a 850nm (l\u00ean \u0111\u1ebfn ~550m)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 850nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng t\u1ea7m ng\u1eafn tr\u00ean c\u00e1p quang \u0111a mode (MMF), v\u00e0 hi\u1ec7u n\u0103ng c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f3 m\u1eadt \u0111\u1ed9 cao thay v\u00ec truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c \u0111i\u1ec3m \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ph\u1ea1m vi hi\u1ec7u qu\u1ea3: <strong>10m \u0111\u1ebfn ~550m<\/strong><\/p><\/li><li><p>Hi\u1ec7u n\u0103ng t\u1ed1t nh\u1ea5t trong ph\u1ea1m vi <strong>c\u00e1c li\u00ean k\u1ebft n\u1ed9i b\u1ed9 t\u00f2a nh\u00e0 ng\u1eafn<\/strong><\/p><\/li><li><p>Ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1c lo\u1ea1i c\u00e1p quang OM2 \/ OM3 \/ OM4<\/p><\/li><li><p>Ph\u1ed5 bi\u1ebfn trong <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482145.htm\">1G (SX)<\/a> and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476059.htm\">10G (SR)<\/a> \u1ee9ng d\u1ee5ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482145.htm\">c\u00e1c module 850nm<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u00e1c switch v\u00e0 m\u00e1y ch\u1ee7 n\u1eb1m trong c\u00f9ng m\u1ed9t gi\u00e1 rack ho\u1eb7c c\u00f9ng m\u1ed9t ph\u00f2ng<\/p><\/li><li><p>ki\u1ebfn tr\u00fac leaf-spine c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u y\u00eau c\u1ea7u m\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/p><\/li><li><p>c\u1ea7n t\u1ed5ng h\u1ee3p \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn v\u1edbi \u1ea3nh h\u01b0\u1edfng \u0111\u1ed9 tr\u1ec5 t\u1ed1i thi\u1ec3u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, suy gi\u1ea3m hi\u1ec7u n\u0103ng tr\u1edf n\u00ean r\u00f5 r\u1ec7t khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ch\u1ea5t l\u01b0\u1ee3ng c\u00e1p quang kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u<\/p><\/li><li><p>chi\u1ec1u d\u00e0i c\u00e1p ti\u1ebfn g\u1ea7n t\u1edbi kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li><li><p>c\u00f3 qu\u00e1 nhi\u1ec1u \u0111i\u1ec3m n\u1ed1i ho\u1eb7c \u0111\u1ea7u n\u1ed1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb: 850nm r\u1ea5t hi\u1ec7u qu\u1ea3, nh\u01b0ng ch\u1ec9 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng t\u1ea7m ng\u1eafn \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u1ea1m vi c\u1ee7a 1310nm (10km\u201340km+)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 1310nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1p quang \u0111\u01a1n mode (SMF), cho ph\u00e9p truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n \u0111\u00e1ng k\u1ec3 v\u1edbi t\u1ed5n hao quang th\u1ea5p h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c \u0111i\u1ec3m \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ph\u1ea1m vi hi\u1ec7u qu\u1ea3: 10km, 20km, 40km+ (t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i module)<\/p><\/li><li><p>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ti\u00eau chu\u1ea9n quang h\u1ecdc LX \/ LR<\/p><\/li><li><p>T\u1ed1i \u01b0u h\u00f3a cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p s\u1ee3i quang OS1 \/ OS2<\/p><\/li><li><p>\u0110\u1ed9 suy hao th\u1ea5p h\u01a1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u00edn hi\u1ec7u cao h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, c\u00e1c module 1310nm th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c m\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng khu\u00f4n vi\u00ean k\u1ebft n\u1ed1i nhi\u1ec1u t\u00f2a nh\u00e0<\/p><\/li><li><p>Doanh nghi\u1ec7p <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-wide-area-network\/\">WAN<\/a> ho\u1eb7c c\u00e1c li\u00ean k\u1ebft truy c\u1eadp \u0111\u00f4 th\u1ecb (metro)<\/p><\/li><li><p>C\u00e1c t\u00ecnh hu\u1ed1ng k\u1ebft n\u1ed1i trung t\u00e2m d\u1eef li\u1ec7u (DCI)<\/p><\/li><li><p>C\u00e1c m\u1ea1ng t\u1eadp h\u1ee3p c\u1ee7a ISP v\u00e0 vi\u1ec5n th\u00f4ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec s\u1ee3i quang \u0111\u01a1n mode h\u1ed7 tr\u1ee3 m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng duy nh\u1ea5t, t\u00edn hi\u1ec7u 1310nm duy tr\u00ec \u0111\u1ed9 nguy\u00ean v\u1eb9n cao h\u01a1n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i, ngay c\u1ea3 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi ph\u1ee9c t\u1ea1p ho\u1eb7c \u0111a t\u00f2a nh\u00e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb: 1310nm l\u00e0 ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c \u01b0u ti\u00ean khi kho\u1ea3ng c\u00e1ch v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u00edn hi\u1ec7u l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf then ch\u1ed1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c t\u00ecnh hu\u1ed1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u th\u1ef1c t\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n c\u00e1ch c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng, h\u00e3y xem x\u00e9t c\u00e1c m\u00f4 h\u00ecnh tri\u1ec3n khai sau:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" >\ud83c\udfe2 M\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u (850nm chi\u1ebfm \u01b0u th\u1ebf)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1ed1c \u0111\u1ed9 cao \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i trong c\u00f9ng m\u1ed9t ph\u00f2ng ho\u1eb7c d\u00e3y t\u1ee7 rack<\/p><\/li><li><p>C\u00e1c li\u00ean k\u1ebft quang ng\u1eafn gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch leaf v\u00e0 spine<\/p><\/li><li><p>Ki\u1ebfn tr\u00fac chi ph\u00ed hi\u1ec7u qu\u1ea3 v\u1edbi m\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/p><\/li><li><p>S\u1ee3i quang \u0111a mode \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c \u0111i d\u00e2y n\u1ed9i b\u1ed9<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5: 10G SR (850nm) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch trong ph\u1ea1m vi 100\u2013300 m\u00e9t<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" >\ud83c\udfd9 M\u00f4i tr\u01b0\u1eddng khu\u00f4n vi\u00ean doanh nghi\u1ec7p (s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u00ean trong t\u00f2a nh\u00e0 (ph\u00f2ng m\u00e1y ch\u1ee7, c\u00e1c t\u1ea7ng)<\/p><\/li><li><p>1310nm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li><li><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang lai k\u1ebft h\u1ee3p s\u1ee3i \u0111a mode (MMF) + s\u1ee3i \u0111\u01a1n mode (SMF)<\/p><\/li>\n<\/ul>\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>M\u1ea1ng n\u1ed9i b\u1ed9 T\u00f2a nh\u00e0 A \u2192 850nm (MMF)<\/p><\/li><li><p>T\u1eeb T\u00f2a nh\u00e0 A \u0111\u1ebfn T\u00f2a nh\u00e0 B \u2192 1310nm (SMF)<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" >\ud83c\udf10 M\u1ea1ng \u0111\u00f4 th\u1ecb \/ li\u00ean t\u00f2a nh\u00e0 (1310nm chi\u1ebfm \u01b0u th\u1ebf)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c tuy\u1ebfn c\u00e1p s\u1ee3i quang kho\u1ea3ng c\u00e1ch d\u00e0i<\/p><\/li><li><p>Y\u00eau c\u1ea7u cao h\u01a1n v\u1ec1 \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u<\/p><\/li><li><p>\u00cdt \u0111i\u1ec3m truy c\u1eadp v\u1eadt l\u00fd h\u01a1n, nh\u01b0ng bao ph\u1ee7 kho\u1ea3ng c\u00e1ch l\u1edbn h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5: 1310nm <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477879.htm\">module LR<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft khu\u00f4n vi\u00ean ho\u1eb7c \u0111\u00f4 th\u1ecb t\u1eeb 10km tr\u1edf l\u00ean<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Khi kho\u1ea3ng c\u00e1ch tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong thi\u1ebft k\u1ebf m\u1ea1ng quang, kho\u1ea3ng c\u00e1ch th\u01b0\u1eddng l\u00e0 r\u00e0ng bu\u1ed9c \u0111\u1ea7u ti\u00ean v\u00e0 quan tr\u1ecdng nh\u1ea5t khi l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 1310nm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t khung ra quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>N\u1ebfu li\u00ean k\u1ebft c\u1ee7a b\u1ea1n d\u01b0\u1edbi ~300\u2013550m \u2192 850nm (MMF) th\u01b0\u1eddng l\u00e0 \u0111\u1ee7<\/p><\/li><li><p>N\u1ebfu li\u00ean k\u1ebft c\u1ee7a b\u1ea1n tr\u00ean 1km ho\u1eb7c k\u00e9o d\u00e0i qua nhi\u1ec1u t\u00f2a nh\u00e0 \u2192 1310nm (SMF) l\u00e0 b\u1eaft bu\u1ed9c<\/p><\/li><li><p>N\u1ebfu d\u1ef1 ki\u1ebfn m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai \u2192 1310nm cung c\u1ea5p kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ed1t h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u00e1c quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt th\u1ef1c t\u1ebf c\u0169ng xem x\u00e9t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng cung c\u1ea5p c\u00e1p quang trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng hi\u1ec7n c\u00f3<\/p><\/li><li><p>Chi ph\u00ed l\u1eafp \u0111\u1eb7t (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\">MMF so v\u1edbi SMF<\/a>)<\/p><\/li><li><p>B\u1ed1 tr\u00ed m\u1ea1ng (LAN ph\u1eb3ng so v\u1edbi khu\u00f4n vi\u00ean ph\u00e2n t\u00e1n)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf, kho\u1ea3ng c\u00e1ch kh\u00f4ng ch\u1ec9 x\u00e1c \u0111\u1ecbnh hi\u1ec7u su\u1ea5t m\u00e0 c\u00f2n c\u1ea3 chi\u1ebfn l\u01b0\u1ee3c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 chi ph\u00ed v\u00e0 tri\u1ec3n khai trong m\u1ea1ng, bao g\u1ed3m t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO), \u0111\u1ea7u t\u01b0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n gi\u1eefa c\u00e1c gi\u1ea3i ph\u00e1p 850nm v\u00e0 1310nm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 C\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 chi ph\u00ed v\u00e0 tri\u1ec3n khai trong m\u1ea1ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong quy ho\u1ea1ch m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa SFP 850nm v\u00e0 1310nm kh\u00f4ng c\u00f2n ch\u1ec9 d\u1ef1a tr\u00ean hi\u1ec7u n\u0103ng k\u1ef9 thu\u1eadt. Trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u, c\u1ea5u tr\u00fac chi ph\u00ed, chi\u1ebfn l\u01b0\u1ee3c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u00e0 k\u1ebf ho\u1ea1ch m\u1edf r\u1ed9ng \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng ngang nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u1ea3 hai t\u00f9y ch\u1ecdn \u0111\u1ec1u \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i, ch\u00fang \u0111\u1ea1i di\u1ec7n cho hai m\u00f4 h\u00ecnh \u0111\u1ea7u t\u01b0 c\u01a1 b\u1ea3n kh\u00e1c nhau: t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed cho kho\u1ea3ng c\u00e1ch ng\u1eafn (850nm) so v\u1edbi kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng cho kho\u1ea3ng c\u00e1ch xa (1310nm).<\/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\/737c292dcb0d4c838d261d96e860678c.jpg\" alt=\"Cost and Deployment Considerations in Networks\" class=\"wp-image-2782\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/737c292dcb0d4c838d261d96e860678c.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/737c292dcb0d4c838d261d96e860678c-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/737c292dcb0d4c838d261d96e860678c-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/737c292dcb0d4c838d261d96e860678c-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/737c292dcb0d4c838d261d96e860678c-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ea1i sao module SFP 850nm ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Module SFP 850nm th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed v\u00e0 m\u1eadt \u0111\u1ed9 cao nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 LAN doanh nghi\u1ec7p. L\u00fd do ch\u00ednh l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa chi ph\u00ed quang h\u1ecdc th\u1ea5p h\u01a1n v\u00e0 chi ph\u00ed l\u1eafp \u0111\u1eb7t c\u00e1p quang th\u1ea5p h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c l\u1ee3i th\u1ebf chi ph\u00ed ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chi ph\u00ed b\u1ed9 thu ph\u00e1t th\u1ea5p h\u01a1n nh\u1edd c\u00f4ng ngh\u1ec7 laser VCSEL<\/p><\/li><li><p>C\u00e1p s\u1ee3i quang \u0111a mode (MMF) r\u1ebb h\u01a1n<\/p><\/li><li><p>L\u1eafp \u0111\u1eb7t v\u00e0 n\u1ed1i \u0111\u1ea7u d\u00e2y \u0111\u01a1n gi\u1ea3n h\u01a1n<\/p><\/li><li><p>Gi\u1ea3m nhu c\u1ea7u t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang cho kho\u1ea3ng c\u00e1ch xa<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c h\u1ec7 th\u1ed1ng 850nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch ng\u1eafn, n\u00ean ch\u00fang lo\u1ea1i b\u1ecf nhu c\u1ea7u s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc \u0111\u01b0\u1eddng d\u00e0i \u0111\u1eaft ti\u1ec1n, gi\u00fap ch\u00fang c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3 cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u1ee7 rack<\/p><\/li><li><p>Li\u00ean k\u1ebft t\u1eeb switch \u0111\u1ebfn m\u00e1y ch\u1ee7<\/p><\/li><li><p>Ki\u1ebfn tr\u00fac leaf-spine m\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i ng\u1eafn g\u1ecdn: 850nm gi\u1ea3m thi\u1ec3u CAPEX ban \u0111\u1ea7u trong c\u00e1c m\u00f4i tr\u01b0\u1eddng ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng (MMF so v\u1edbi SMF)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 chi ph\u00ed quan tr\u1ecdng nh\u1ea5t trong m\u1ea1ng quang h\u1ecdc kh\u00f4ng ch\u1ec9 l\u00e0 b\u1ea3n th\u00e2n module SFP, m\u00e0 c\u00f2n l\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang n\u1ec1n t\u1ea3ng.<\/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>S\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9 (MMF \u2013 850nm)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111\u01a1n ch\u1ebf \u0111\u1ed9 (SMF \u2013 1310nm)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed c\u00e1p<\/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>\u0110\u1ed9 ph\u1ee9c t\u1ea1p khi l\u1eafp \u0111\u1eb7t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>D\u1ec5 h\u01a1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ee9c t\u1ea1p h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a \u0111\u1ea7u n\u1ed1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u00cdt nghi\u00eam ng\u1eb7t h\u01a1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Th\u00e0nh ph\u1ea7n quang h\u1ecdc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Quang h\u1ecdc VCSEL chi ph\u00ed th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Laser DFB\/cao c\u1ea5p chi ph\u00ed cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea1m vi tri\u1ec3n khai<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng n\u1ed9i b\u1ed9 c\u1ef1 ly ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft khu\u00f4n vi\u00ean\/th\u00e0nh ph\u1ed1 c\u1ef1 ly xa<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482246.htm\">MMF<\/a> (H\u1ec7 th\u1ed1ng 850nm) l\u00e0m gi\u1ea3m chi ph\u00ed tri\u1ec3n khai ban \u0111\u1ea7u<\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477871.htm\">SMF<\/a> (H\u1ec7 th\u1ed1ng 1310nm) l\u00e0m t\u0103ng \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u nh\u01b0ng cho ph\u00e9p m\u1edf r\u1ed9ng c\u1ef1 ly xa<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i r\u00f5 r\u00e0ng: chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p h\u01a1n so v\u1edbi kh\u1ea3 n\u0103ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng cao h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >G\u00f3c nh\u00ecn v\u1ec1 T\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb g\u00f3c \u0111\u1ed9 chi\u1ebfn l\u01b0\u1ee3c CNTT doanh nghi\u1ec7p, vi\u1ec7c \u0111\u00e1nh gi\u00e1 T\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO) quan tr\u1ecdng h\u01a1n vi\u1ec7c ch\u1ec9 t\u1eadp trung v\u00e0o chi ph\u00ed mua ban \u0111\u1ea7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ed3 s\u01a1 TCO 850nm:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>CAPEX ban \u0111\u1ea7u th\u1ea5p h\u01a1n (quang h\u1ecdc + c\u00e1p)<\/p><\/li><li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng b\u1ecb gi\u1edbi h\u1ea1n \u1edf c\u00e1c li\u00ean k\u1ebft c\u1ef1 ly ng\u1eafn<\/p><\/li><li><p>C\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111i l\u1ea1i c\u00e1p trong t\u01b0\u01a1ng lai n\u1ebfu m\u1ea1ng m\u1edf r\u1ed9ng<\/p><\/li><li><p>L\u00fd t\u01b0\u1edfng cho c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u1ee5c b\u1ed9 \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ed3 s\u01a1 TCO 1310nm:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>CAPEX ban \u0111\u1ea7u cao h\u01a1n do c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng SMF v\u00e0 quang h\u1ecdc<\/p><\/li><li><p>R\u1ee7i ro thi\u1ebft k\u1ebf l\u1ea1i ho\u1eb7c l\u1eafp \u0111\u1eb7t l\u1ea1i trong t\u01b0\u01a1ng lai th\u1ea5p h\u01a1n<\/p><\/li><li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ed1t h\u01a1n v\u1ec1 l\u00e2u d\u00e0i cho c\u00e1c m\u1ea1ng ph\u00e2n t\u00e1n<\/p><\/li><li><p>Hi\u1ec7u qu\u1ea3 chi ph\u00ed h\u01a1n trong su\u1ed1t v\u00f2ng \u0111\u1eddi \u0111\u1ed1i v\u1edbi c\u00e1c tri\u1ec3n khai khu\u00f4n vi\u00ean quy m\u00f4 l\u1edbn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn \u0111\u1ecbnh then ch\u1ed1t: 850nm ti\u1ebft ki\u1ec7m ti\u1ec1n ngay b\u00e2y gi\u1edd, 1310nm ti\u1ebft ki\u1ec7m ti\u1ec1n v\u1ec1 sau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >H\u1ec7 qu\u1ea3 m\u1edf r\u1ed9ng \u0111\u1ed1i v\u1edbi c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c m\u1ea1ng doanh nghi\u1ec7p ti\u1ebfn h\u00f3a h\u01b0\u1edbng t\u1edbi t\u00edch h\u1ee3p \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, khu\u00f4n vi\u00ean ph\u00e2n t\u00e1n v\u00e0 nhu c\u1ea7u b\u0103ng th\u00f4ng cao h\u01a1n, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng tr\u1edf th\u00e0nh y\u00eau c\u1ea7u thi\u1ebft k\u1ebf tr\u1ecdng t\u00e2m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1eb7c \u0111i\u1ec3m m\u1edf r\u1ed9ng c\u1ee7a 850nm:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Hi\u1ec7u qu\u1ea3 trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u1ee5m c\u1ee5c b\u1ed9<\/p><\/li><li><p>B\u1ecb gi\u1edbi h\u1ea1n b\u1edfi c\u00e1c r\u00e0ng bu\u1ed9c kho\u1ea3ng c\u00e1ch c\u1ee7a s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9<\/p><\/li><li><p>Vi\u1ec7c m\u1edf r\u1ed9ng th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi th\u00eam c\u00e1c l\u1edbp chuy\u1ec3n m\u1ea1ch thay v\u00ec k\u00e9o d\u00e0i s\u1ee3i quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1eb7c \u0111i\u1ec3m m\u1edf r\u1ed9ng c\u1ee7a 1310nm:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ed7 tr\u1ee3 m\u1edf r\u1ed9ng gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 v\u00e0 to\u00e0n khu\u00f4n vi\u00ean<\/p><\/li><li><p>Cho ph\u00e9p h\u1ee3p nh\u1ea5t \u0111\u01b0\u1eddng truy\u1ec1n n\u1ec1n c\u1ef1 ly xa<\/p><\/li><li><p>Gi\u1ea3m nhu c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb m\u1ea1ng trung gian<\/p><\/li><li><p>Ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi ki\u1ebfn tr\u00fac ph\u00e2n t\u00e1n hi\u1ec7n \u0111\u1ea1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u t\u1ed5 ch\u1ee9c \u0111ang chuy\u1ec3n sang ki\u1ebfn tr\u00fac lai, trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho <strong>chuy\u1ec3n m\u1ea1ch n\u1ed9i b\u1ed9 m\u1eadt \u0111\u1ed9 cao<\/strong><\/p><\/li><li><p>1310nm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho <strong>x\u01b0\u01a1ng s\u1ed1ng v\u00e0 k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c \u0111\u1ecba \u0111i\u1ec3m<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Quy\u1ebft \u0111\u1ecbnh chi ph\u00ed gi\u1eefa c\u00e1c m\u00f4-\u0111un SFP 850nm v\u00e0 1310nm gi\u1edd \u0111\u00e2y kh\u00f4ng c\u00f2n ch\u1ec9 d\u1ef1a tr\u00ean gi\u00e1 m\u1ed7i b\u1ed9 thu ph\u00e1t. \u0110\u00f3 l\u00e0 v\u1ec1 chi\u1ebfn l\u01b0\u1ee3c ki\u1ebfn tr\u00fac m\u1ea1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ecdn <strong>850nm<\/strong> khi t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn v\u00e0 chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p<\/p><\/li><li><p>Ch\u1ecdn <strong>1310nm<\/strong> khi thi\u1ebft k\u1ebf cho kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ph\u00e2n t\u00e1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ng hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed nh\u1ea5t kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng m\u1ea1ng r\u1ebb nh\u1ea5t ngay t\u1eeb \u0111\u1ea7u, m\u00e0 l\u00e0 nh\u1eefng m\u1ea1ng gi\u1ea3m thi\u1ec3u chi ph\u00ed di chuy\u1ec3n v\u00e0 thi\u1ebft k\u1ebf l\u1ea1i trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd xem x\u00e9t c\u00e1c l\u1ed7i t\u01b0\u01a1ng th\u00edch ph\u1ed5 bi\u1ebfn v\u00e0 s\u1ef1 c\u1ed1 tri\u1ec3n khai, bao g\u1ed3m c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf do sai l\u1ec7ch b\u01b0\u1edbc s\u00f3ng v\u00e0 l\u1ef1a ch\u1ecdn s\u1ee3i quang kh\u00f4ng \u0111\u00fang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 C\u00e1c l\u1ed7i t\u01b0\u01a1ng th\u00edch ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch tr\u00e1nh ch\u00fang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai m\u1ea1ng quang th\u1ef1c t\u1ebf, c\u00e1c v\u1ea5n \u0111\u1ec1 hi\u1ec7u su\u1ea5t th\u01b0\u1eddng b\u1ecb quy nh\u1ea7m m\u1ed9t c\u00e1ch sai l\u1ea7m cho c\u00e1c m\u00f4-\u0111un SFP l\u1ed7i. Tuy nhi\u00ean, trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn SFP 850nm so v\u1edbi 1310nm b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c l\u1ed7i t\u01b0\u01a1ng th\u00edch\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 gh\u00e9p sai b\u01b0\u1edbc s\u00f3ng, kh\u00f4ng kh\u1edbp lo\u1ea1i s\u1ee3i quang v\u00e0 gi\u1ea3 \u0111\u1ecbnh sai v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00e1nh th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, ch\u1eadm tr\u1ec5 trong vi\u1ec7c ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1 v\u00e0 thay th\u1ebf thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng kh\u00f4ng c\u1ea7n thi\u1ebft.<\/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\/8e1617ee1a8849f8af0228092556b104.jpg\" alt=\"Common Compatibility Mistakes and How to Avoid Them\" class=\"wp-image-2783\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e1617ee1a8849f8af0228092556b104.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e1617ee1a8849f8af0228092556b104-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e1617ee1a8849f8af0228092556b104-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e1617ee1a8849f8af0228092556b104-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8e1617ee1a8849f8af0228092556b104-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Tr\u1ed9n l\u1eabn c\u00e1c m\u00f4-\u0111un 850nm v\u00e0 1310nm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t trong tri\u1ec3n khai s\u1ee3i quang l\u00e0 c\u1ed1 g\u1eafng k\u1ebft n\u1ed1i c\u00e1c m\u00f4-\u0111un SFP 850nm v\u1edbi c\u00e1c m\u00f4-\u0111un SFP 1310nm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ea5n \u0111\u1ec1 n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c nh\u00f3m t\u00e1i s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng hi\u1ec7n c\u00f3 m\u00e0 kh\u00f4ng ki\u1ec3m tra th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p><\/li><li><p>C\u00e1c \u0111\u1ee3t mua s\u1eafm kh\u00e1c nhau \u0111\u01b0\u1ee3c tr\u1ed9n l\u1eabn trong c\u00f9ng m\u1ed9t m\u1ea1ng<\/p><\/li><li><p>C\u00e1c k\u1ef9 s\u01b0 gi\u1ea3 \u0111\u1ecbnh <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477871.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> l\u00e0 t\u01b0\u01a1ng th\u00edch ph\u1ed5 qu\u00e1t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110i\u1ec1u th\u1ef1c t\u1ebf x\u1ea3y ra:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c b\u01b0\u1edbc s\u00f3ng quang kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/p><\/li><li><p>T\u00edn hi\u1ec7u truy\u1ec1n v\u00e0 nh\u1eadn kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u0111\u00fang c\u00e1ch<\/p><\/li><li><p>Li\u00ean k\u1ebft th\u01b0\u1eddng kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>K\u1ebft qu\u1ea3:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u274c Kh\u00f4ng c\u00f3 \u0111\u00e8n b\u00e1o li\u00ean k\u1ebft (li\u00ean k\u1ebft b\u1ecb ng\u1eaft)<\/p><\/li><li><p>\u274c Kh\u00f4ng truy\u1ec1n d\u1eef li\u1ec7u<\/p><\/li><li><p>\u274c Gi\u1ea3 \u0111\u1ecbnh sai r\u1eb1ng ph\u1ea7n c\u1ee9ng b\u1ecb l\u1ed7i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Quy t\u1eafc then ch\u1ed1t: C\u00e1c m\u00f4-\u0111un SFP ph\u1ea3i lu\u00f4n kh\u1edbp nhau v\u1ec1 b\u01b0\u1edbc s\u00f3ng v\u00e0 ti\u00eau chu\u1ea9n \u1edf c\u1ea3 hai \u0111\u1ea7u c\u1ee7a li\u00ean k\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1eed d\u1ee5ng sai lo\u1ea1i s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t l\u1ed7i tri\u1ec3n khai nghi\u00eam tr\u1ecdng kh\u00e1c l\u00e0 gh\u00e9p m\u1ed9t m\u00f4-\u0111un SFP \u0111\u00fang v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang sai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng kh\u1edbp ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482246.htm\">SFP 850nm<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477887.htm\">SFP 1310nm<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi s\u1ee3i quang \u0111a mode (MMF)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00fd do g\u00e2y ra v\u1ea5n \u0111\u1ec1:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u00edch th\u01b0\u1edbc l\u00f5i s\u1ee3i quang v\u00e0 ph\u01b0\u01a1ng ph\u00e1p lan truy\u1ec1n \u00e1nh s\u00e1ng kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf quang h\u1ecdc<\/p><\/li><li><p>\u00c1nh s\u00e1ng kh\u00f4ng \u0111\u01b0\u1ee3c d\u1eabn h\u01b0\u1edbng \u0111\u00fang c\u00e1ch qua s\u1ee3i quang<\/p><\/li><li><p>\u0110\u1ed9 suy hao t\u00edn hi\u1ec7u t\u0103ng m\u1ea1nh theo kho\u1ea3ng c\u00e1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00e1c \u0111\u1ed9ng th\u1ef1c t\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u26a0\ufe0f \u0110\u1ed9 suy hao ch\u00e8n cao<\/p><\/li><li><p>\u26a0\ufe0f K\u1ebft n\u1ed1i kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c ng\u1eaft qu\u00e3ng<\/p><\/li><li><p>\u26a0\ufe0f Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn gi\u1ea3m \u0111\u00e1ng k\u1ec3 so v\u1edbi gi\u00e1 tr\u1ecb d\u1ef1 ki\u1ebfn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Quy t\u1eafc quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm \u2192 s\u1ee3i quang \u0111a mode (OM2 \/ OM3 \/ OM4)<\/p><\/li><li><p>1310nm \u2192 s\u1ee3i quang \u0111\u01a1n mode (OS1 \/ OS2)<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1ea7m l\u1eabn v\u1ec1 kh\u1ea3 n\u0103ng thay th\u1ebf l\u1eabn nhau c\u1ee7a module SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t quan ni\u1ec7m sai l\u1ea7m ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u tri\u1ec3n khai l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c module SFP \u0111\u1ec1u c\u00f3 th\u1ec3 thay th\u1ebf cho nhau mi\u1ec5n l\u00e0 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y l\u00e0 kh\u00f4ng \u0111\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c module SFP c\u00f3 c\u00f9ng giao di\u1ec7n v\u1eadt l\u00fd, ch\u00fang kh\u00e1c nhau \u1edf c\u00e1c y\u1ebfu t\u1ed1 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u01b0\u1edbc s\u00f3ng (850nm, 1310nm, v.v.)<\/p><\/li><li><p>M\u1ee9c c\u00f4ng su\u1ea5t quang h\u1ecdc<br><\/p><\/li><li><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi lo\u1ea1i s\u1ee3i quang<\/p><\/li><li><p>Ti\u00eau chu\u1ea9n truy\u1ec1n d\u1eabn (SR, LR, LX, v.v.)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00fd do x\u1ea3y ra s\u1ef1 nh\u1ea7m l\u1eabn n\u00e0y:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c module SFP c\u00f3 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd gi\u1ed1ng nhau<\/p><\/li><li><p>C\u00e1c nh\u00e0 cung c\u1ea5p th\u01b0\u1eddng nh\u1ea5n m\u1ea1nh t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1ec1 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd<\/p><\/li><li><p>Thi\u1ebfu nh\u1eadn th\u1ee9c v\u1ec1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quang h\u1ecdc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>K\u1ebft qu\u1ea3:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u1ef1a ch\u1ecdn module kh\u00f4ng \u0111\u00fang<\/p><\/li><li><p>S\u1ef1 b\u1ea5t \u1ed5n m\u1ea1ng<\/p><\/li><li><p>Hi\u1ec7u su\u1ea5t kh\u00f4ng nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c li\u00ean k\u1ebft<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Quy t\u1eafc quan tr\u1ecdng: T\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t v\u1eadt l\u00fd kh\u00f4ng \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t quang h\u1ecdc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c tr\u01b0\u1eddng h\u1ee3p l\u1ed7i th\u1ef1c t\u1ebf (m\u1ea5t li\u00ean k\u1ebft, \u0111\u1ed9 suy hao cao)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u th\u1ef1c t\u1ebf, nh\u1eefng sai s\u00f3t v\u1ec1 t\u01b0\u01a1ng th\u00edch th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn c\u00e1c m\u1eabu l\u1ed7i d\u1ec5 d\u1ef1 \u0111o\u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p 1: M\u1ea5t li\u00ean k\u1ebft ho\u00e0n to\u00e0n (Link Down)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nguy\u00ean nh\u00e2n: Sai b\u01b0\u1edbc s\u00f3ng (850nm \u2194 1310nm) ho\u1eb7c gh\u00e9p sai ti\u00eau chu\u1ea9n<\/p><\/li><li><p>Bi\u1ec3u hi\u1ec7n: Kh\u00f4ng c\u00f3 \u0111\u00e8n b\u00e1o li\u00ean k\u1ebft, kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i<\/p><\/li><li><p>C\u00e1ch kh\u1eafc ph\u1ee5c: Thay b\u1eb1ng module SFP c\u00f3 b\u01b0\u1edbc s\u00f3ng ph\u00f9 h\u1ee3p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p 2: \u0110\u1ed9 suy hao t\u00edn hi\u1ec7u cao tr\u00ean kho\u1ea3ng c\u00e1ch ng\u1eafn<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nguy\u00ean nh\u00e2n: S\u1eed d\u1ee5ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477882.htm\">quang h\u1ecdc 1310nm<\/a> tr\u00ean s\u1ee3i quang \u0111a mode ho\u1eb7c s\u1ee3i MMF ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m<\/p><\/li><li><p>Bi\u1ec3u hi\u1ec7n: Li\u00ean k\u1ebft ho\u1ea1t \u0111\u1ed9ng ng\u1eaft qu\u00e3ng ho\u1eb7c m\u1ea5t khi t\u1ea3i cao<\/p><\/li><li><p>C\u00e1ch kh\u1eafc ph\u1ee5c: S\u1eed d\u1ee5ng \u0111\u00fang lo\u1ea1i s\u1ee3i quang ho\u1eb7c chuy\u1ec3n sang quang h\u1ecdc ph\u00f9 h\u1ee3p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p 3: K\u1ebft n\u1ed1i ng\u1eaft qu\u00e3ng (Link Flapping)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nguy\u00ean nh\u00e2n: T\u01b0\u01a1ng th\u00edch \u1edf m\u1ee9c gi\u1edbi h\u1ea1n gi\u1eefa s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng ho\u1eb7c qu\u00e1 nhi\u1ec1u \u0111i\u1ec3m n\u1ed1i<\/p><\/li><li><p>Bi\u1ec3u hi\u1ec7n: M\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, m\u1ea5t g\u00f3i tin, th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c<\/p><\/li><li><p>C\u00e1ch kh\u1eafc ph\u1ee5c: Gi\u1ea3m s\u1ed1 \u0111i\u1ec3m n\u1ed1i, x\u00e1c minh lo\u1ea1i s\u1ee3i quang, chu\u1ea9n h\u00f3a quang h\u1ecdc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u2714 Lu\u00f4n x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch b\u01b0\u1edbc s\u00f3ng (850nm so v\u1edbi 1310nm)<\/p><\/li><li><p>\u2714 Ph\u00f9 h\u1ee3p lo\u1ea1i SFP v\u1edbi lo\u1ea1i c\u00e1p quang \u0111\u00fang (MMF so v\u1edbi SMF)<\/p><\/li><li><p>\u2714 Tr\u00e1nh tr\u1ed9n c\u00e1c chu\u1ea9n tr\u00ean c\u00f9ng m\u1ed9t li\u00ean k\u1ebft<\/p><\/li><li><p>\u2714 X\u00e1c th\u1ef1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang tr\u01b0\u1edbc khi tri\u1ec3n khai<\/p><\/li><li><p>\u2714 Chu\u1ea9n h\u00f3a c\u00e1c m\u00f4-\u0111un quang tr\u00ean to\u00e0n b\u1ed9 c\u00e1c t\u1ea7ng m\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn c\u00e1c \u201cs\u1ef1 c\u1ed1 SFP\u201d kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 c\u1ed1 ph\u1ea7n c\u1ee9ng\u2014m\u00e0 l\u00e0 s\u1ef1 c\u1ed1 c\u1ea5u h\u00ecnh v\u00e0 t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u01b0\u1edbc s\u00f3ng (nm)<\/p><\/li><li><p>Lo\u1ea1i c\u00e1p quang (MMF\/SMF)<\/p><\/li><li><p>Chu\u1ea9n truy\u1ec1n d\u1eabn (SR\/LR\/LX)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i quang tr\u01b0\u1edbc khi ch\u00fang x\u1ea3y ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng: khi n\u00e0o n\u00ean ch\u1ecdn m\u00f4-\u0111un SFP 850nm so v\u1edbi 1310nm, k\u00e8m theo c\u00e1c khuy\u1ebfn ngh\u1ecb tri\u1ec3n khai th\u1ef1c t\u1ebf cho trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng doanh nghi\u1ec7p v\u00e0 m\u00f4i tr\u01b0\u1eddng khu\u00f4n vi\u00ean.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee7a m\u00f4-\u0111un SFP 850nm v\u00e0 1310nm<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong thi\u1ebft k\u1ebf m\u1ea1ng th\u1ef1c t\u1ebf, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa m\u00f4-\u0111un SFP 850nm v\u00e0 1310nm t\u1ed1t nh\u1ea5t n\u00ean \u0111\u01b0\u1ee3c hi\u1ec3u kh\u00f4ng ph\u1ea3i l\u00e0 s\u1edf th\u00edch k\u1ef9 thu\u1eadt, m\u00e0 l\u00e0 quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean t\u00ecnh hu\u1ed1ng. M\u1ed7i b\u01b0\u1edbc s\u00f3ng \u0111\u1ea3m nhi\u1ec7m m\u1ed9t vai tr\u00f2 ri\u00eang bi\u1ec7t trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng hi\u1ec7n \u0111\u1ea1i, v\u00e0 vi\u1ec7c ch\u1ecdn b\u01b0\u1edbc s\u00f3ng ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ed1 tr\u00ed ki\u1ebfn tr\u00fac, kho\u1ea3ng c\u00e1ch v\u00e0 y\u00eau c\u1ea7u m\u1edf r\u1ed9ng quy m\u00f4.<\/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\/16c47be6c0da4afab975675927e2efce.jpg\" alt=\"850nm and 1310nm SFP Modules Use Cases\" class=\"wp-image-2784\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16c47be6c0da4afab975675927e2efce.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16c47be6c0da4afab975675927e2efce-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16c47be6c0da4afab975675927e2efce-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16c47be6c0da4afab975675927e2efce-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16c47be6c0da4afab975675927e2efce-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng LAN t\u1ea7m ng\u1eafn (850nm)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP 850nm l\u00e0 l\u1ef1a ch\u1ecdn ch\u1ee7 \u0111\u1ea1o trong m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 ki\u1ebfn tr\u00fac m\u1ea1ng LAN t\u1ea7m ng\u1eafn nh\u1edd hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 l\u1ee3i th\u1ebf tri\u1ec3n khai m\u1eadt \u0111\u1ed9 cao.<\/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<ul class=\"wp-block-list\">\n<li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c switch trong c\u00f9ng m\u1ed9t gi\u00e1 ho\u1eb7c c\u00f9ng m\u1ed9t h\u00e0ng<\/p><\/li><li><p>Ki\u1ebfn tr\u00fac leaf-spine trong trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i<\/p><\/li><li><p>K\u1ebft n\u1ed1i t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ebfn switch \u0111\u1ea7u rack (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-tor-top-of-rack-switch\/\">ToR<\/a>)<\/p><\/li><li><p>C\u00e1c k\u1ebft n\u1ed1i Ethernet t\u1ed1c \u0111\u1ed9 cao t\u1ea7m ng\u1eafn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00fd do 850nm ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1p quang \u0111a mode (MMF), d\u1ec5 l\u1eafp \u0111\u1eb7t h\u01a1n trong h\u1ec7 th\u1ed1ng c\u00e1p c\u00f3 c\u1ea5u tr\u00fac<\/p><\/li><li><p>H\u1ed7 tr\u1ee3 m\u1eadt \u0111\u1ed9 c\u1ed5ng cao v\u1edbi chi ph\u00ed th\u1ea5p h\u01a1n<\/p><\/li><li><p>T\u1ed1i \u01b0u cho kho\u1ea3ng c\u00e1ch ng\u1eafn (th\u01b0\u1eddng l\u00ean t\u1edbi ~550m)<\/p><\/li><li><p>Gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng c\u00e1p trong c\u00e1c m\u00f4i tr\u01b0\u1eddng h\u1ea1n ch\u1ebf v\u1ec1 kh\u00f4ng gian<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i: 850nm l\u00fd t\u01b0\u1edfng khi t\u1ed1c \u0111\u1ed9, m\u1eadt \u0111\u1ed9 v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed quan tr\u1ecdng h\u01a1n kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ea1ng khu\u00f4n vi\u00ean v\u00e0 li\u00ean k\u1ebft gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 (1310nm)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP 1310nm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 kho\u1ea3ng c\u00e1ch tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 then ch\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 gi\u1eefa nhi\u1ec1u t\u00f2a nh\u00e0 ho\u1eb7c c\u00e1c \u0111\u1ecba \u0111i\u1ec3m ph\u00e2n t\u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00ecnh hu\u1ed1ng s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 trong khu\u00f4n vi\u00ean doanh nghi\u1ec7p<\/p><\/li><li><p>L\u00f5i m\u1ea1ng c\u1ee7a tr\u01b0\u1eddng \u0111\u1ea1i h\u1ecdc ho\u1eb7c b\u1ec7nh vi\u1ec7n<\/p><\/li><li><p>M\u1ea1ng truy nh\u1eadp \u0111\u00f4 th\u1ecb (metro) v\u00e0 c\u00e1c \u0111i\u1ec3m t\u1eadp h\u1ee3p bi\u00ean<\/p><\/li><li><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u00f5i c\u00e1p quang gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00fd do v\u00ec sao 1310nm \u0111\u01b0\u1ee3c \u01b0u ti\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ed7 tr\u1ee3 s\u1ee3i quang \u0111\u01a1n mode (SMF) cho truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa<\/p><\/li><li><p>Duy tr\u00ec \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch 10 km, 20 km ho\u1eb7c xa h\u01a1n<\/p><\/li><li><p>Su\u1ea5t suy hao th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p \u0111a mode<\/p><\/li><li><p>Hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh h\u01a1n tr\u00ean c\u00e1c tuy\u1ebfn c\u00e1p quang ngo\u00e0i tr\u1eddi ho\u1eb7c tuy\u1ebfn d\u00e0i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i: 1310nm l\u00e0 l\u1ef1a ch\u1ecdn ti\u00eau chu\u1ea9n cho k\u1ebft n\u1ed1i l\u00f5i c\u00f3 kho\u1ea3ng c\u00e1ch xa v\u00e0 \u0111\u1ed9 tin c\u1eady cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >H\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf l\u00f5i m\u1ea1ng doanh nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ki\u1ebfn tr\u00fac m\u1ea1ng doanh nghi\u1ec7p, thi\u1ebft k\u1ebf l\u00f5i m\u1ea1ng \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh hi\u1ec7u n\u0103ng, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac \u0111i\u1ec3n h\u00ecnh g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>L\u1edbp truy c\u1eadp (Access Layer):<\/strong> C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u01b0\u1edbc s\u00f3ng 850nm cho c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li><li><p><strong>L\u1edbp ph\u00e2n ph\u1ed1i (Distribution Layer):<\/strong> Th\u01b0\u1eddng k\u1ebft h\u1ee3p linh ho\u1ea1t t\u00f9y theo b\u1ed1 tr\u00ed c\u00e1c t\u00f2a nh\u00e0<\/p><\/li><li><p><strong>L\u00f5i m\u1ea1ng (Core Backbone):<\/strong> Ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng b\u01b0\u1edbc s\u00f3ng 1310nm \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 kho\u1ea3ng c\u00e1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ec9 s\u1eed d\u1ee5ng 850nm trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e9p k\u00edn (ph\u00f2ng, t\u1ee7 rack, t\u1ea7ng)<\/p><\/li><li><p>S\u1eed d\u1ee5ng 1310nm cho k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c ph\u00e2n \u0111o\u1ea1n ho\u1eb7c gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li><li><p>Tr\u00e1nh k\u00e9o d\u00e0i s\u1ee3i quang \u0111a mode v\u01b0\u1ee3t qu\u00e1 ph\u1ea1m vi t\u1ed1i \u01b0u c\u1ee7a n\u00f3<\/p><\/li><li><p>Chu\u1ea9n h\u00f3a b\u01b0\u1edbc s\u00f3ng theo t\u1eebng l\u1edbp m\u1ea1ng nh\u1eb1m \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00f4ng t\u00e1c b\u1ea3o tr\u00ec<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch ti\u1ebfp c\u1eadn ph\u00e2n l\u1edbp n\u00e0y \u0111\u1ea3m b\u1ea3o c\u1ea3 hi\u1ec7u qu\u1ea3 chi ph\u00ed l\u1eabn kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c t\u00ecnh hu\u1ed1ng m\u1ea1ng lai (Hybrid Network Scenarios)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i hi\u1ebfm khi ch\u1ec9 d\u1ef1a v\u00e0o m\u1ed9t b\u01b0\u1edbc s\u00f3ng duy nh\u1ea5t. Thay v\u00e0o \u0111\u00f3, c\u00e1c ki\u1ebfn tr\u00fac lai k\u1ebft h\u1ee3p 850nm v\u00e0 1310nm \u0111ang tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n ng\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4 h\u00ecnh tri\u1ec3n khai lai ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm (s\u1ee3i quang \u0111a mode \u2013 MMF): B\u00ean trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 ph\u00f2ng m\u00e1y ch\u1ee7<\/p><\/li><li><p>1310nm (s\u1ee3i quang \u0111\u01a1n mode \u2013 SMF): Gi\u1eefa c\u00e1c t\u00f2a nh\u00e0, khu\u00f4n vi\u00ean ho\u1eb7c c\u00e1c n\u00fat khu v\u1ef1c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ee3i \u00edch c\u1ee7a thi\u1ebft k\u1ebf lai:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1i \u01b0u chi ph\u00ed tr\u00ean t\u1eebng l\u1edbp c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng<\/p><\/li><li><p>Hi\u1ec7u n\u0103ng ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi kho\u1ea3ng c\u00e1ch v\u1eadt l\u00fd<\/p><\/li><li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u1ec5 d\u00e0ng h\u01a1n cho c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n sau n\u00e0y<\/p><\/li><li><p>Gi\u1ea3m thi\u1ec3u r\u1ee7i ro thi\u1ebft k\u1ebf d\u01b0 th\u1eeba ho\u1eb7c thi\u1ebfu s\u00f3t \u1edf c\u00e1c ph\u00e2n \u0111o\u1ea1n m\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5: M\u1ed9t khu\u00f4n vi\u00ean doanh nghi\u1ec7p quy m\u00f4 l\u1edbn c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm cho chuy\u1ec3n m\u1ea1ch trung t\u00e2m d\u1eef li\u1ec7u n\u1ed9i b\u1ed9<\/p><\/li><li><p>1310nm \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u t\u00f2a nh\u00e0 qua v\u00f2ng c\u00e1p quang trong khu\u00f4n vi\u00ean<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Quy\u1ebft \u0111\u1ecbnh gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 1310nm kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1ecb ph\u00e2n\u2014m\u00e0 l\u00e0 v\u1ea5n \u0111\u1ec1 ki\u1ebfn tr\u00fac.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ecdn <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">850nm<\/a> cho m\u00f4i tr\u01b0\u1eddng c\u1ef1 ly ng\u1eafn, m\u1eadt \u0111\u1ed9 cao<\/p><\/li><li><p>Ch\u1ecdn <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477880.htm\">1310nm<\/a> cho k\u1ebft n\u1ed1i n\u1ec1n t\u1ea3ng c\u1ef1 ly xa<\/p><\/li><li><p>K\u1ebft h\u1ee3p c\u1ea3 hai trong c\u00e1c ki\u1ebfn tr\u00fac lai \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ng hi\u1ec7u qu\u1ea3 nh\u1ea5t kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t\u2014m\u00e0 l\u00e0 c\u00e1c h\u1ec7 sinh th\u00e1i quang h\u1ecdc \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u theo t\u1eebng l\u1edbp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p m\u1ed9t m\u1ee5c h\u1ecfi \u0111\u00e1p th\u01b0\u1eddng g\u1eb7p (FAQ), gi\u1ea3i \u0111\u00e1p nh\u1eefng c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u1ec1 module SFP 850nm so v\u1edbi 1310nm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 H\u1ecfi \u0111\u00e1p th\u01b0\u1eddng g\u1eb7p \u2013 SFP 850nm so v\u1edbi 1310nm<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1644e5bbf7d74b98867acdf45b1fec95.jpg\" alt=\"FAQ \u2013 SFP 850nm vs. 1310nm\" class=\"wp-image-2785\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1644e5bbf7d74b98867acdf45b1fec95.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1644e5bbf7d74b98867acdf45b1fec95-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1644e5bbf7d74b98867acdf45b1fec95-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1644e5bbf7d74b98867acdf45b1fec95-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1644e5bbf7d74b98867acdf45b1fec95-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00f4i c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t tr\u1ef1c quan module SFP 850nm v\u00e0 1310nm kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, nh\u01b0ng ch\u1ec9 gi\u00e1n ti\u1ebfp. H\u1ea7u h\u1ebft module SFP kh\u00f4ng hi\u1ec3n th\u1ecb r\u00f5 b\u01b0\u1edbc s\u00f3ng tr\u00ean v\u1ecf ngo\u00e0i, tuy nhi\u00ean b\u1ea1n th\u01b0\u1eddng c\u00f3 th\u1ec3 nh\u1eadn di\u1ec7n ch\u00fang th\u00f4ng qua:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c k\u00fd hi\u1ec7u tr\u00ean nh\u00e3n (v\u00ed d\u1ee5: SR th\u01b0\u1eddng ch\u1ec9 850nm, LR th\u01b0\u1eddng ch\u1ec9 1310nm)<\/p><\/li><li><p>B\u1ed1i c\u1ea3nh lo\u1ea1i c\u00e1p s\u1ee3i quang (c\u00e1p \u0111a mode \u2013 MMF so v\u1edbi c\u00e1p \u0111\u01a1n mode \u2013 SMF \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t)<\/p><\/li><li><p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt trong b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf, vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u1ea7n lu\u00f4n \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn th\u00f4ng qua t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt thay v\u00ec d\u1ef1a v\u00e0o h\u00ecnh d\u00e1ng b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c module SFP 850nm v\u00e0 1310nm c\u00f3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng (hot-swappable) kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3. H\u1ea7u h\u1ebft c\u00e1c module SFP hi\u1ec7n \u0111\u1ea1i, bao g\u1ed3m c\u1ea3 lo\u1ea1i 850nm v\u00e0 1310nm, \u0111\u1ec1u <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/are-sfp-modules-hot-swappable-safe-sfp-hot-swap-guide\/\">Cat5e\/Cat6 Ethernet<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Vi\u1ec7c h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng KH\u00d4NG \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch<\/p><\/li><li><p>C\u00e1c th\u00f4ng s\u1ed1 quang h\u1ecdc v\u1eabn ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf m\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c c\u1eafm v\u1eadt l\u00fd \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, nh\u01b0ng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c quang h\u1ecdc kh\u00f4ng t\u1ef1 \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ea1i sao m\u1ed9t s\u1ed1 module SFP s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u \u201cSR\u201d v\u00e0 \u201cLR\u201d thay v\u00ec ghi r\u00f5 b\u01b0\u1edbc s\u00f3ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u00fd hi\u1ec7u n\u00e0y \u0111\u1ea1i di\u1ec7n cho c\u00e1c ti\u00eau chu\u1ea9n truy\u1ec1n d\u1eabn ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 b\u01b0\u1edbc s\u00f3ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SR (Ph\u1ea1m vi ng\u1eafn) \u2192 th\u01b0\u1eddng d\u00f9ng b\u01b0\u1edbc s\u00f3ng 850nm, c\u00e1p s\u1ee3i quang \u0111a mode<\/p><\/li><li><p>LR (Ph\u1ea1m vi d\u00e0i) \u2192 th\u01b0\u1eddng d\u00f9ng b\u01b0\u1edbc s\u00f3ng 1310nm, c\u00e1p s\u1ee3i quang \u0111\u01a1n mode<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 th\u1ed1ng \u0111\u1eb7t t\u00ean n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i v\u00ec gi\u00fap k\u1ef9 s\u01b0 d\u1ec5 d\u00e0ng l\u1ef1a ch\u1ecdn module d\u1ef1a tr\u00ean y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch h\u01a1n l\u00e0 c\u00e1c con s\u1ed1 b\u01b0\u1edbc s\u00f3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u00e0u c\u1ee7a c\u00e1p n\u1ed1i s\u1ee3i quang c\u00f3 th\u1ec3 cho bi\u1ebft lo\u1ea1i module SFP kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, trong nhi\u1ec1u h\u1ec7 th\u1ed1ng c\u00e1p c\u00f3 c\u1ea5u tr\u00fac, m\u00e0u s\u1eafc s\u1ee3i quang \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m ch\u1ec9 th\u1ecb tr\u1ef1c quan:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Cam \/ Xanh lam nh\u1ea1t \u2192 th\u01b0\u1eddng l\u00e0 s\u1ee3i quang \u0111a mode (h\u1ec7 th\u1ed1ng 850nm)<\/p><\/li><li><p>V\u00e0ng \u2192 th\u01b0\u1eddng l\u00e0 s\u1ee3i quang \u0111\u01a1n mode (h\u1ec7 th\u1ed1ng 1310nm)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Vi\u1ec7c m\u00e3 m\u00e0u l\u00e0 m\u1ed9t quy \u01b0\u1edbc, kh\u00f4ng ph\u1ea3i ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt<\/p><\/li><li><p>Lu\u00f4n x\u00e1c minh lo\u1ea1i s\u1ee3i quang tr\u01b0\u1edbc khi \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh tri\u1ec3n khai<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u01b0\u1edbc s\u00f3ng n\u00e0o mang t\u00ednh \u201cd\u1ef1 ph\u00f2ng cho t\u01b0\u01a1ng lai\u201d h\u01a1n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 b\u01b0\u1edbc s\u00f3ng n\u00e0o mang t\u00ednh \u201cd\u1ef1 ph\u00f2ng cho t\u01b0\u01a1ng lai\u201d m\u1ed9t c\u00e1ch tuy\u1ec7t \u0111\u1ed1i \u2014 ch\u00fang ph\u1ee5c v\u1ee5 c\u00e1c l\u1edbp m\u1ea1ng kh\u00e1c nhau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm \u0111ang ph\u00e1t tri\u1ec3n c\u00f9ng c\u00e1c ti\u00eau chu\u1ea9n trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, ph\u1ea1m vi ng\u1eafn<\/p><\/li><li><p>1310nm ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng quy m\u00f4 cho m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i v\u00e0 m\u1ea1ng l\u00f5i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh \u201cd\u1ef1 ph\u00f2ng cho t\u01b0\u01a1ng lai\u201d ph\u1ee5 thu\u1ed9c v\u00e0o ki\u1ebfn tr\u00fac m\u1ea1ng, kh\u00f4ng ch\u1ec9 ri\u00eang b\u01b0\u1edbc s\u00f3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c module SFP t\u1ed1c \u0111\u1ed9 cao h\u01a1n c\u00f3 c\u00f2n tu\u00e2n theo nguy\u00ean t\u1eafc 850nm so v\u1edbi 1310nm nh\u01b0 c\u0169 kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3. Ngay c\u1ea3 \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\">25G<\/a>, v\u00e0 cao h\u01a1n n\u1eefa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>850nm v\u1eabn \u0111\u01b0\u1ee3c d\u00f9ng cho c\u00e1c k\u1ebft n\u1ed1i \u0111a mode ph\u1ea1m vi ng\u1eafn (c\u00e1c bi\u1ebfn th\u1ec3 SR)<\/p><\/li><li><p>1310nm v\u1eabn \u0111\u01b0\u1ee3c d\u00f9ng cho c\u00e1c k\u1ebft n\u1ed1i \u0111\u01a1n mode ph\u1ea1m vi d\u00e0i (c\u00e1c bi\u1ebfn th\u1ec3 LR)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean l\u00fd b\u01b0\u1edbc s\u00f3ng v\u1eabn gi\u1eef t\u00ednh nh\u1ea5t qu\u00e1n xuy\u00ean su\u1ed1t c\u00e1c th\u1ebf h\u1ec7 ti\u00eau chu\u1ea9n Ethernet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd34 K\u1ebft lu\u1eadn \u2013 B\u1ea1n n\u00ean ch\u1ecdn module SFP n\u00e0o?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e1c module SFP 850nm v\u00e0 1310nm cu\u1ed1i c\u00f9ng kh\u00f4ng n\u1eb1m \u1edf vi\u1ec7c \u201cc\u00e1i n\u00e0o t\u1ed1t h\u01a1n\u201d, m\u00e0 \u1edf vi\u1ec7c \u201cc\u00e1i n\u00e0o ph\u00f9 h\u1ee3p \u0111\u00fang v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u1ea1ng, y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang c\u1ee7a b\u1ea1n\u201d. Vi\u1ec7c l\u1ef1a ch\u1ecdn sai c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn chi ph\u00ed kh\u00f4ng c\u1ea7n thi\u1ebft, li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c th\u1eadm ch\u00ed m\u1ea5t ho\u00e0n to\u00e0n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u2014 trong khi l\u1ef1a ch\u1ecdn \u0111\u00fang s\u1ebd \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i v\u00e0 hi\u1ec7u n\u0103ng \u0111\u00e1ng tin c\u1eady.<\/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\/2db6440783aa44bcaa7e6e8b680a2556.jpg\" alt=\"Which SFP Should You Choose?\" class=\"wp-image-2786\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2db6440783aa44bcaa7e6e8b680a2556.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2db6440783aa44bcaa7e6e8b680a2556-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2db6440783aa44bcaa7e6e8b680a2556-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2db6440783aa44bcaa7e6e8b680a2556-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2db6440783aa44bcaa7e6e8b680a2556-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Khung t\u00f3m t\u1eaft quy tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady, k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi mua c\u1ea7n \u0111\u00e1nh gi\u00e1 b\u1ed1n y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kho\u1ea3ng c\u00e1ch<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>850nm (\u0111a mode):<\/strong> Ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00e1c k\u1ebft n\u1ed1i ph\u1ea1m vi ng\u1eafn, th\u01b0\u1eddng trong c\u00f9ng m\u1ed9t t\u00f2a nh\u00e0 ho\u1eb7c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u1ee7 rack (t\u1ed1i \u0111a ~550m)<\/p><\/li><li><p><strong>1310nm (\u0111\u01a1n mode):<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n d\u1eabn ph\u1ea1m vi trung b\u00ecnh \u0111\u1ebfn d\u00e0i, t\u1eeb 10km \u0111\u1ebfn 40km tr\u1edf l\u00ean<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n v\u01b0\u1ee3t qua c\u00e1c t\u00f2a nh\u00e0 ho\u1eb7c khu khu\u00f4n vi\u00ean, 1310nm th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lo\u1ea1i s\u1ee3i quang<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>MMF (OM2\/OM3\/OM4)<\/strong> \u2192 y\u00eau c\u1ea7u module SFP 850nm<\/p><\/li><li><p><strong>SMF (OS1\/OS2)<\/strong> \u2192 y\u00eau c\u1ea7u module SFP 1310nm<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang l\u00e0 r\u00e0ng bu\u1ed9c m\u1ea1nh nh\u1ea5t \u2014 b\u01b0\u1edbc s\u00f3ng ph\u1ea3i kh\u1edbp ch\u00ednh x\u00e1c v\u1edbi n\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chi ph\u00ed<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ec7 th\u1ed1ng 850nm th\u01b0\u1eddng c\u00f3 chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p h\u01a1n do:<\/p><ul><li><p>C\u00e1p s\u1ee3i quang \u0111a mode r\u1ebb h\u01a1n<\/p><\/li><li><p>Module thu ph\u00e1t c\u00f3 gi\u00e1 th\u1ea5p h\u01a1n<\/p><\/li><\/ul><\/li><li><p>H\u1ec7 th\u1ed1ng 1310nm \u0111\u00f2i h\u1ecfi chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng cao h\u01a1n nh\u01b0ng mang l\u1ea1i:<\/p><ul><li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ed1t h\u01a1n<\/p><\/li><li><p>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn xa h\u01a1n<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebft ki\u1ec7m ng\u1eafn h\u1ea1n so v\u1edbi kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n l\u00e0 \u0111i\u1ec3m \u0111\u00e1nh \u0111\u1ed5i then ch\u1ed1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ecnh hu\u1ed1ng \u1ee9ng d\u1ee5ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>850nm:<\/strong> Trung t\u00e2m d\u1eef li\u1ec7u, n\u1ed9i b\u1ed9 t\u00f2a nh\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/local-area-network-lan-modern-networking-fast-secure-connections\/\">M\u1ea1ng LAN<\/a>, t\u1ee7 rack m\u00e1y ch\u1ee7, k\u1ebft n\u1ed1i uplink ng\u1eafn<\/p><\/li><li><p><strong>1310nm:<\/strong> M\u1ea1ng l\u00f5i khu\u00f4n vi\u00ean, li\u00ean k\u1ebft doanh nghi\u1ec7p, k\u1ebft n\u1ed1i truy c\u1eadp \u0111\u00f4 th\u1ecb<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ebfn tr\u00fac m\u1ea1ng c\u1ee7a b\u1ea1n x\u00e1c \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c quang h\u1ecdc ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Quy tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>N\u1ebfu s\u1ee3i quang c\u1ee7a b\u1ea1n l\u00e0 \u0111a mode + kho\u1ea3ng c\u00e1ch ng\u1eafn \u2192 ch\u1ecdn 850nm (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\">SR<\/a>)<\/p><\/li><li><p>N\u1ebfu s\u1ee3i quang c\u1ee7a b\u1ea1n l\u00e0 \u0111\u01a1n mode + kho\u1ea3ng c\u00e1ch d\u00e0i \u2192 ch\u1ecdn 1310nm (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\">LR<\/a>)<\/p><\/li><li><p>N\u1ebfu \u0111ang l\u1eadp k\u1ebf ho\u1ea1ch tri\u1ec3n khai m\u1edbi \u2192 \u01b0u ti\u00ean kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai b\u1eb1ng 1310nm n\u1ebfu c\u00f3 th\u1ec3<\/p><\/li><li><p>N\u1ebfu n\u00e2ng c\u1ea5p m\u1ea1ng LAN hi\u1ec7n h\u1eefu ph\u1ea1m vi ng\u1eafn \u2192 850nm th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t m\u1ea1ng quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t d\u1ef1a tr\u00ean s\u1ef1 kh\u1edbp ch\u00ednh x\u00e1c gi\u1eefa b\u01b0\u1edbc s\u00f3ng, lo\u1ea1i s\u1ee3i quang v\u00e0 kho\u1ea3ng c\u00e1ch tri\u1ec3n khai th\u1ef1c t\u1ebf \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a module. Vi\u1ec7c c\u0103n ch\u1ec9nh \u0111\u00fang ngay t\u1eeb giai \u0111o\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch s\u1ebd ng\u0103n ng\u1eeba ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0, nh\u00e0 ph\u00e2n ph\u1ed1i v\u00e0 ng\u01b0\u1eddi mua doanh nghi\u1ec7p \u0111ang t\u00ecm ki\u1ebfm c\u00e1c module quang \u1ed5n \u0111\u1ecbnh, \u0111\u1ea7y \u0111\u1ee7 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">B\u1ed9 thu ph\u00e1t quang t\u01b0\u01a1ng th\u00edch<\/a>, vi\u1ec7c ch\u1ecdn nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady c\u0169ng quan tr\u1ecdng ngang b\u1eb1ng vi\u1ec7c l\u1ef1a ch\u1ecdn b\u01b0\u1edbc s\u00f3ng ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Kh\u00e1m ph\u00e1 c\u00e1c module quang ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m nghi\u1ec7m t\u1ea1i <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a> \u0111\u1ec3 tri\u1ec3n khai \u0111\u00e1ng tin c\u1eady tr\u00ean c\u00e1c m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 doanh nghi\u1ec7p.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP 850nm v\u00e0 1310nm v\u1ec1 lo\u1ea1i s\u1ee3i quang, kho\u1ea3ng c\u00e1ch, chi ph\u00ed v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. T\u00ecm hi\u1ec3u module SFP n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p>","protected":false},"author":1,"featured_media":2787,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[26],"class_list":["post-2788","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2788","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=2788"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2788\/revisions"}],"predecessor-version":[{"id":10722,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2788\/revisions\/10722"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2787"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}