{"id":3207,"date":"2026-03-04T00:00:00","date_gmt":"2026-03-04T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/how-to-choose-sfp-module-guide\/"},"modified":"2026-06-22T04:06:40","modified_gmt":"2026-06-22T04:06:40","slug":"how-to-choose-sfp-module-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-choose-sfp-module-guide","title":{"rendered":"C\u00e1ch ch\u1ecdn m\u00f4-\u0111un SFP ph\u00f9 h\u1ee3p v\u1ec1 m\u1eb7t t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch"},"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\/65a9ff2f0fbc46b8bb3cd490f04995ea.jpg\" alt=\"How to Choose SFP Module\" class=\"wp-image-3194\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65a9ff2f0fbc46b8bb3cd490f04995ea.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65a9ff2f0fbc46b8bb3cd490f04995ea-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65a9ff2f0fbc46b8bb3cd490f04995ea-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65a9ff2f0fbc46b8bb3cd490f04995ea-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/65a9ff2f0fbc46b8bb3cd490f04995ea-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u01b0u ti\u00ean s\u1ef1 m\u1ea1nh m\u1ebd, qu\u1ea3n l\u00fd v\u00e0 \u0111\u1ed9 trong su\u1ed1t. <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">m\u00f4-\u0111un SFP<\/a> kh\u00f4ng \u0111\u01a1n thu\u1ea7n ch\u1ec9 l\u00e0 vi\u1ec7c gh\u00e9p n\u1ed1i c\u00e1c \u0111\u1ea7u n\u1ed1i. Trong c\u00e1c m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c ch\u1ecdn sai b\u1ed9 thu ph\u00e1t (transceiver) c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i k\u1ebft n\u1ed1i, kh\u00f4ng kh\u1edbp t\u1ed1c \u0111\u1ed9, l\u1ed7i t\u01b0\u01a1ng th\u00edch ho\u1eb7c gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch b\u1ea5t ng\u1edd. \u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng, nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng v\u00e0 ng\u01b0\u1eddi mua CNTT, vi\u1ec7c hi\u1ec3u r\u00f5<br> <strong>c\u00e1ch ch\u1ecdn m\u00f4-\u0111un SFP ph\u00f9 h\u1ee3p v\u1ec1 m\u1eb7t t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch<br><\/strong> l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u1ed5n \u0111\u1ecbnh v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP (Small Form-factor Pluggable) l\u00e0 c\u00e1c m\u00f4-\u0111un quang ho\u1eb7c<br> <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">b\u1ed9 thu ph\u00e1t \u0111\u1ed3ng (copper transceivers)<br><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch (switch), b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn (router), t\u01b0\u1eddng l\u1eeda (firewall) v\u00e0 card giao di\u1ec7n m\u1ea1ng (NIC). \u0110\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo \u0111\u1eb7c t\u1ea3 c\u1ee7a \u1ee6y ban H\u00ecnh th\u1ee9c Nh\u1ecf (Small Form Factor Committee) v\u00e0 \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n Ethernet IEEE, c\u00e1c m\u00f4-\u0111un SFP cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i linh ho\u1ea1t tr\u00ean c\u00e1c l\u1edbp truy c\u1eadp, t\u1eadp h\u1ee3p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ec1u c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau. S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p v\u00e0 m\u00e3 h\u00f3a MSA<br><\/p><\/li>\n\n\n\n<li><p>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u (1G so v\u1edbi 10G so v\u1edbi 25G)<br><\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i c\u00e1p quang (\u0111\u01a1n mode so v\u1edbi \u0111a mode)<br><\/p><\/li>\n\n\n\n<li><p>B\u01b0\u1edbc s\u00f3ng quang (850nm, 1310nm, 1550nm)<br><\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn (300m \u0111\u1ebfn h\u01a1n 80km)<br><\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng (th\u01b0\u01a1ng m\u1ea1i so v\u1edbi c\u00f4ng nghi\u1ec7p)<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">c\u00f3 th\u1ec3 tr\u1ef1c ti\u1ebfp quy\u1ebft \u0111\u1ecbnh vi\u1ec7c k\u1ebft n\u1ed1i c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang hay kh\u00f4ng.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p m\u1ed9t khu\u00f4n kh\u1ed5 th\u1ef1c ti\u1ec5n, t\u1eadp trung v\u00e0o k\u1ef9 thu\u1eadt \u0111\u1ec3 l\u1ef1a ch\u1ecdn m\u00f4-\u0111un SFP ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean c\u00e1c th\u00f4ng s\u1ed1 m\u1ea1ng \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c thay v\u00ec d\u1ef1a v\u00e0o gi\u1ea3 \u0111\u1ecbnh. T\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c vi\u1ebft d\u00e0nh ri\u00eang cho c\u00e1c chuy\u00ean gia c\u1ea7n h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c\u2014d\u00f9 l\u00e0 \u0111\u1ec3 x\u00e1c minh vi\u1ec7c tri\u1ec3n khai b\u1ed9 chuy\u1ec3n m\u1ea1ch doanh nghi\u1ec7p, n\u00e2ng c\u1ea5p l\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng 10G ho\u1eb7c 25G, hay l\u1ef1a ch\u1ecdn m\u00f4-\u0111un cho m\u00f4i tr\u01b0\u1eddng Ethernet c\u00f4ng nghi\u1ec7p.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd hi\u1ec3u \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1ch x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00f4-\u0111un SFP v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n<br><\/p><\/li>\n\n\n\n<li><p>C\u00e1ch x\u00e1c \u0111\u1ecbnh b\u1ea1n c\u1ea7n d\u00f9ng SFP, SFP+ hay SFP28<br><\/p><\/li>\n\n\n\n<li><p>C\u00e1ch gh\u00e9p \u0111\u00fang lo\u1ea1i c\u00e1p quang v\u00e0 b\u01b0\u1edbc s\u00f3ng<br><\/p><\/li>\n\n\n\n<li><p>C\u00e1ch t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn ph\u00f9 h\u1ee3p<br><\/p><\/li>\n\n\n\n<li><p>Khi n\u00e0o c\u1ea7n y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9 c\u00f4ng nghi\u1ec7p ho\u1eb7c gi\u00e1m s\u00e1t DOM (Digital Optical Monitoring)<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c ti\u00eau r\u1ea5t r\u00f5 r\u00e0ng: lo\u1ea1i b\u1ecf vi\u1ec7c ph\u1ecfng \u0111o\u00e1n v\u00e0 ng\u0103n ng\u1eeba nh\u1eefng sai s\u00f3t t\u1ed1n k\u00e9m trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u1ef1a ch\u1ecdn c\u00f3 c\u1ea5u tr\u00fac, d\u1ef1a tr\u00ean c\u00e1c ti\u00eau chu\u1ea9n.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t\u2014<strong>t\u01b0\u01a1ng th\u00edch<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 1 \u2014 X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00f4-\u0111un SFP (MSA v\u00e0 m\u00e3 h\u00f3a nh\u00e0 cung c\u1ea5p)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y th\u1ea5t b\u1ea1i khi tri\u1ec3n khai SFP. Tr\u01b0\u1edbc khi xem x\u00e9t t\u1ed1c \u0111\u1ed9, kho\u1ea3ng c\u00e1ch ho\u1eb7c b\u01b0\u1edbc s\u00f3ng, b\u1ea1n ph\u1ea3i x\u00e1c nh\u1eadn r\u1eb1ng m\u00f4-\u0111un s\u1ebd \u0111\u01b0\u1ee3c c\u00f4ng t\u1eafc ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n nh\u1eadn di\u1ec7n v\u00e0 h\u1ed7 tr\u1ee3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng doanh nghi\u1ec7p, s\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch kh\u00f4ng g\u00e2y h\u01b0 h\u1ea1i v\u1eadt l\u00fd\u2014nh\u01b0ng d\u1eabn \u0111\u1ebfn c\u1ed5ng v\u1eabn \u1edf tr\u1ea1ng th\u00e1i t\u1eaft, nh\u1eadt k\u00fd l\u1ed7i ho\u1eb7c th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o nh\u01b0 \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.\u201d Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c ti\u00eau chu\u1ea9n v\u00e0 ch\u00ednh s\u00e1ch nh\u00e0 cung c\u1ea5p \u0111\u1eb1ng sau <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-test-sfp-compatibility\/\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a> lo\u1ea1i b\u1ecf r\u1ee7i ro n\u00e0y.<\/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\/152ae23a1c67458492777ff308ec6f72.jpg\" alt=\"Step 1 \u2014 Verify SFP Module Compatibility (MSA and Vendor Coding)\" class=\"wp-image-3195\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/152ae23a1c67458492777ff308ec6f72.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/152ae23a1c67458492777ff308ec6f72-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/152ae23a1c67458492777ff308ec6f72-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/152ae23a1c67458492777ff308ec6f72-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/152ae23a1c67458492777ff308ec6f72-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">MSA (Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n) l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MSA l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\"><strong>Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n<\/strong><\/a>. \u0110\u00e2y l\u00e0 m\u1ed9t th\u1ecfa thu\u1eadn ng\u00e0nh \u0111\u1ecbnh ngh\u0129a k\u00edch th\u01b0\u1edbc c\u01a1 h\u1ecdc, giao di\u1ec7n \u0111i\u1ec7n v\u00e0 \u0111\u1eb7c t\u1ea3 quang h\u1ecdc c\u1ee7a c\u00e1c b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 c\u1eafm r\u1eddi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c t\u1ea3 d\u1ea1ng SFP g\u1ed1c \u0111\u01b0\u1ee3c \u1ee6y ban Y\u1ebfu t\u1ed1 H\u00ecnh d\u1ea1ng Nh\u1ecf (Small Form Factor Committee) \u0111\u1ecbnh ngh\u0129a trong t\u00e0i li\u1ec7u SFF-8472 v\u00e0 c\u00e1c t\u00e0i li\u1ec7u li\u00ean quan. C\u00e1c ti\u00eau chu\u1ea9n t\u00edn hi\u1ec7u Ethernet, ch\u1eb3ng h\u1ea1n nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482145.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\/475586.htm\">10GBASE-LR<\/a>, and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476088.htm\">25GBASE-LR<\/a>, do IEEE \u0111\u1ecbnh ngh\u0129a (v\u00ed d\u1ee5: IEEE 802.3z, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-ieee-802-3ae-10-gigabit-ethernet\/\">3ae<\/a>, and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/25gbase-ieee-802-3by-single-lane-25gbe-standard\/\">3by<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eefng \u0111i\u1ec1u MSA \u0111\u1ea3m b\u1ea3o:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u00edch th\u01b0\u1edbc c\u01a1 h\u1ecdc ti\u00eau chu\u1ea9n (m\u00f4-\u0111un v\u1eeba kh\u00edt v\u00e0o c\u1ed5ng)<\/p><\/li>\n\n\n\n<li><p>Giao di\u1ec7n \u0111i\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5<\/p><\/li>\n\n\n\n<li><p>Ph\u1ea1m vi hi\u1ec7u n\u0103ng quang h\u1ecdc ti\u00eau chu\u1ea9n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eefng \u0111i\u1ec1u MSA KH\u00d4NG \u0111\u1ea3m b\u1ea3o:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nh\u1eadn di\u1ec7n t\u1ef1 \u0111\u1ed9ng nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Mi\u1ec5n tr\u1eeb kh\u1ecfi c\u00e1c h\u1ea1n ch\u1ebf ph\u1ea7n m\u1ec1m\u56fa\u4ef6<\/p><\/li>\n\n\n\n<li><p>Ch\u1ea5p nh\u1eadn ch\u00e9o th\u01b0\u01a1ng hi\u1ec7u tr\u00ean m\u1ecdi c\u00f4ng t\u1eafc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 m\u1eb7t th\u1ef1c t\u1ebf, vi\u1ec7c tu\u00e2n th\u1ee7 MSA \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c \u1edf m\u1ee9c ph\u1ea7n c\u1ee9ng, nh\u01b0ng kh\u00f4ng v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c ki\u1ec3m so\u00e1t ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee7a nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p so v\u1edbi m\u00f4-\u0111un SFP chung chung<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p c\u00f4ng t\u1eafc doanh nghi\u1ec7p \u00e1p d\u1ee5ng vi\u1ec7c x\u00e1c th\u1ef1c b\u1ed9 thu ph\u00e1t d\u1ef1a tr\u00ean ph\u1ea7n m\u1ec1m\u56fa\u4ef6. Khi m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o, c\u00f4ng t\u1eafc \u0111\u1ecdc <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-eeprom-powers-sfp-and-qsfp-optical-modules\/\">B\u1ed9 nh\u1edb EEPROM<\/a> d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u00ean trong m\u00f4-\u0111un. D\u1eef li\u1ec7u n\u00e0y bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t<\/p><\/li>\n\n\n\n<li><p>M\u00e3 linh ki\u1ec7n<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec1u module c\u00f2n h\u1ed7 tr\u1ee3 Gi\u00e1m s\u00e1t quang k\u1ef9 thu\u1eadt s\u1ed1 (<span class=\"math\">)<\/span> (DOM), cung c\u1ea5p d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c nh\u01b0:<\/p><\/li>\n\n\n\n<li><p>M\u00e3 tu\u00e2n th\u1ee7<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu ph\u1ea7n m\u1ec1m\u56fa\u4ef6 ph\u00e1t hi\u1ec7n ID nh\u00e0 cung c\u1ea5p kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, thi\u1ebft b\u1ecb c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>V\u00f4 hi\u1ec7u h\u00f3a c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>Hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o<\/p><\/li>\n\n\n\n<li><p>Ghi nh\u1eadt k\u00fd l\u1ed7i \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p<\/strong> ch\u1ee9a d\u1eef li\u1ec7u EEPROM \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1eb7c bi\u1ec7t cho m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: m\u00e3 h\u00f3a Cisco, m\u00e3 h\u00f3a Juniper, v.v.).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4-\u0111un SFP chung chung (kh\u00f4ng m\u00e3 h\u00f3a ho\u1eb7c ph\u1ed5 d\u1ee5ng)<\/strong> tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA nh\u01b0ng c\u00f3 th\u1ec3 kh\u00f4ng ch\u1ee9a l\u1eadp tr\u00ecnh EEPROM \u0111\u1eb7c th\u00f9 cho th\u01b0\u01a1ng hi\u1ec7u n\u00e0o \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 m\u1eb7t hi\u1ec7u n\u0103ng, kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t quang h\u1ecdc v\u1ed1n c\u00f3 gi\u1eefa m\u1ed9t m\u00f4-\u0111un chung \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u00fang c\u00e1ch v\u00e0 m\u1ed9t m\u00f4-\u0111un do nh\u00e0 cung c\u1ea5p m\u00e3 h\u00f3a. S\u1ef1 kh\u00e1c bi\u1ec7t n\u1eb1m \u1edf ch\u00ednh s\u00e1ch ch\u1ea5p nh\u1eadn firmware.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ea1ng s\u1ea3n xu\u1ea5t, lu\u00f4n x\u00e1c minh xem b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u1ee7a b\u1ea1n c\u00f3 \u00e1p d\u1ee5ng ch\u00ednh s\u00e1ch kh\u00f3a nh\u00e0 cung c\u1ea5p hay kh\u00f4ng tr\u01b0\u1edbc khi mua m\u00f4-\u0111un.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea1n c\u00f3 th\u1ec3 tr\u1ed9n v\u00e0 k\u1ebft h\u1ee3p c\u00e1c m\u00f4-\u0111un SFP kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3\u2014v\u1edbi \u0111i\u1ec1u ki\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 tr\u1ed9n c\u00e1c m\u00f4-\u0111un SFP t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau <strong>n\u1ebfu t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n sau \u0111\u1ec1u \u0111\u00fang:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>C\u1ea3 hai \u0111\u1ea7u \u0111\u1ec1u tu\u00e2n th\u1ee7 c\u00f9ng m\u1ed9t ti\u00eau chu\u1ea9n Ethernet (v\u00ed d\u1ee5: 10GBASE-LR v\u1edbi 10GBASE-LR).<\/p><\/li>\n\n\n\n<li><p>C\u00e1c th\u00f4ng s\u1ed1 b\u01b0\u1edbc s\u00f3ng v\u00e0 kho\u1ea3ng c\u00e1ch kh\u1edbp nhau.<\/p><\/li>\n\n\n\n<li><p>C\u1ea3 hai b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ec1u ch\u1ea5p nh\u1eadn m\u00f4-\u0111un \u0111\u00e3 c\u00e0i \u0111\u1eb7t (nh\u1eadn d\u1ea1ng firmware).<\/p><\/li>\n\n\n\n<li><p>M\u1ee9c c\u00f4ng su\u1ea5t quang n\u1eb1m trong ph\u1ea1m vi t\u01b0\u01a1ng th\u00edch.<\/p><\/li>\n<\/ol>\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><a href=\"https:\/\/www.l-p.com\/products\/476059.htm\" target=\"_self\">10GBASE-SR<\/a> \u2194 10GBASE-SR tr\u00ean c\u00e1p quang \u0111a mode: h\u1ee3p l\u1ec7.<\/p><\/li>\n\n\n\n<li><p>10GBASE-LR \u2194 10GBASE-LR tr\u00ean c\u00e1p quang \u0111\u01a1n mode: h\u1ee3p l\u1ec7.<\/p><\/li>\n\n\n\n<li><p>10GBASE-SR \u2194 10GBASE-LR: kh\u00f4ng t\u01b0\u01a1ng th\u00edch.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tr\u1ed9n th\u01b0\u01a1ng hi\u1ec7u l\u00e0 ph\u1ed5 bi\u1ebfn trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i, mi\u1ec5n l\u00e0 c\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u00fang c\u00e1ch v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c \u0111\u1eb7c t\u1ea3 quang h\u1ecdc c\u1ee7a IEEE.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi mua m\u00f4-\u0111un SFP, h\u00e3y th\u1ef1c hi\u1ec7n quy tr\u00ecnh x\u00e1c th\u1ef1c c\u00f3 c\u1ea5u tr\u00fac sau:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ki\u1ec3m tra \u0111\u1eb7c t\u1ea3 ph\u1ea7n c\u1ee9ng c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Xem l\u1ea1i b\u1ea3ng d\u1eef li\u1ec7u ch\u00ednh th\u1ee9c \u0111\u1ec3 x\u00e1c nh\u1eadn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9 c\u1ed5ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (1G \/ 10G \/ 25G)<\/p><\/li>\n\n\n\n<li><p>D\u1ea1ng g\u00f3i \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (SFP \/ SFP+ \/ SFP28)<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c (n\u1ebfu \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u01b0u \u00fd:<br>M\u1ed9t c\u1ed5ng SFP 1G kh\u00f4ng th\u1ec3 v\u1eadn h\u00e0nh m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476060.htm\">module SFP+ 10G<\/a>.<br>M\u1ed9t s\u1ed1 c\u1ed5ng SFP+ 10G h\u1ed7 tr\u1ee3 tr\u1edf l\u1ea1i 1G\u2014nh\u01b0ng kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Xem l\u1ea1i ma tr\u1eadn t\u01b0\u01a1ng th\u00edch b\u1ed9 thu ph\u00e1t c\u1ee7a nh\u00e0 cung c\u1ea5p<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p l\u1edbn \u0111\u1ec1u c\u00f4ng b\u1ed1 danh s\u00e1ch t\u01b0\u01a1ng th\u00edch n\u00eau r\u00f5 c\u00e1c m\u00e3 b\u1ed9 ph\u1eadn m\u00f4-\u0111un \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ed9 chuy\u1ec3n m\u1ea1ch khu\u00f4n vi\u00ean doanh nghi\u1ec7p<\/p><\/li>\n\n\n\n<li><p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ea5p nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<\/p><\/li>\n\n\n\n<li><p>B\u1ed9 chuy\u1ec3n m\u1ea1ch Ethernet c\u00f4ng nghi\u1ec7p<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">X\u00e1c nh\u1eadn phi\u00ean b\u1ea3n firmware<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c phi\u00ean b\u1ea3n firmware c\u0169 h\u01a1n c\u00f3 th\u1ec3 kh\u00f4ng nh\u1eadn ra c\u00e1c phi\u00ean b\u1ea3n m\u00f4-\u0111un m\u1edbi h\u01a1n. Lu\u00f4n x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch firmware.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">X\u00e1c minh y\u00eau c\u1ea7u m\u00e3 h\u00f3a EEPROM<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ed9 chuy\u1ec3n m\u1ea1ch y\u00eau c\u1ea7u m\u00f4-\u0111un do nh\u00e0 cung c\u1ea5p m\u00e3 h\u00f3a, h\u00e3y \u0111\u1ea3m b\u1ea3o nh\u00e0 cung c\u1ea5p c\u1ee7a b\u1ea1n l\u1eadp tr\u00ecnh d\u1eef li\u1ec7u EEPROM cho ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch (tham kh\u1ea3o nhanh)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh ch\u1ecdn t\u1ed1c \u0111\u1ed9 ho\u1eb7c kho\u1ea3ng c\u00e1ch, h\u00e3y x\u00e1c nh\u1eadn:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 D\u1ea1ng g\u00f3i \u0111\u00fang (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476091.htm\">SFP<\/a> \/ <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482784.htm\">SFP+<\/a> \/ <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491665.htm\">SFP28<\/a>)<br>\u2714 T\u1ed1c \u0111\u1ed9 c\u1ed5ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<br>\u2714 Ch\u00ednh s\u00e1ch ch\u1ea5p nh\u1eadn nh\u00e0 cung c\u1ea5p<br>\u2714 Ti\u00eau chu\u1ea9n Ethernet t\u01b0\u01a1ng th\u00edch<br>\u2714 Phi\u00ean b\u1ea3n firmware \u0111\u00fang<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn, y\u1ebfu t\u1ed1 quan tr\u1ecdng ti\u1ebfp theo l\u00e0 ch\u1ecdn \u0111\u00fang <strong>100G<\/strong>, \u0111i\u1ec1u n\u00e0y tr\u1ef1c ti\u1ebfp quy\u1ebft \u0111\u1ecbnh li\u1ec7u k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 1G, 10G hay 25G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y chuy\u1ec3n sang B\u01b0\u1edbc 2 \u2014 x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 y\u00eau c\u1ea7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 2 \u2014 X\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u SFP c\u1ea7n thi\u1ebft (1G so v\u1edbi 10G so v\u1edbi 25G)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi x\u00e1c nh\u1eadn t\u00ednh t\u01b0\u01a1ng th\u00edch, quy\u1ebft \u0111\u1ecbnh ti\u1ebfp theo l\u00e0 v\u1ec1 t\u1ed1c \u0111\u1ed9. Vi\u1ec7c ch\u1ecdn sai t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u s\u1ebd ho\u1eb7c ng\u0103n ch\u1eb7n k\u1ebft n\u1ed1i kh\u1edfi t\u1ea1o, ho\u1eb7c h\u1ea1n ch\u1ebf hi\u1ec7u n\u0103ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP c\u00f3 s\u1eb5n \u1edf nhi\u1ec1u th\u1ebf h\u1ec7 kh\u00e1c nhau, m\u1ed7i th\u1ebf h\u1ec7 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ed9t ti\u00eau chu\u1ea9n t\u00edn hi\u1ec7u Ethernet c\u1ee5 th\u1ec3 do IEEE quy \u0111\u1ecbnh. C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>1G (1000BASE-X)<\/p><\/li>\n\n\n\n<li><p>10G (10GBASE-X)<\/p><\/li>\n\n\n\n<li><p>25G (25GBASE-X)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn t\u1ed1c \u0111\u1ed9 c\u1ea7n d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng c\u1ee7a c\u1ed5ng switch, ki\u1ebfn tr\u00fac m\u1ea1ng v\u00e0 y\u00eau c\u1ea7u b\u0103ng th\u00f4ng\u2014kh\u00f4ng ch\u1ec9 d\u1ef1a tr\u00ean gi\u1ea3 \u0111\u1ecbnh \u201cd\u1ef1 ph\u00f2ng cho t\u01b0\u01a1ng lai\u201d.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e5f9293129c491e977e2922d3531bb6-1024x576.jpg\" alt=\"Step 2 \u2014 Identify Required SFP Data Rate (1G vs. 10G vs. 25G)\" class=\"wp-image-3196\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e5f9293129c491e977e2922d3531bb6-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e5f9293129c491e977e2922d3531bb6-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e5f9293129c491e977e2922d3531bb6-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e5f9293129c491e977e2922d3531bb6-18x10.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e5f9293129c491e977e2922d3531bb6.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SFP (1G) so v\u1edbi SFP+ (10G) so v\u1edbi SFP28 (25G)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un n\u00e0y c\u00f3 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd t\u01b0\u01a1ng t\u1ef1 nhau, ch\u00fang kh\u00f4ng gi\u1ed1ng nhau v\u1ec1 m\u1eb7t \u0111i\u1ec7n v\u00e0 kh\u00f4ng th\u1ec3 thay th\u1ebf l\u1eabn nhau m\u1ed9t c\u00e1ch ph\u1ed5 qu\u00e1t.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP (1G)<\/a><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">SFP+ (10G)<\/a><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\">SFP28 (25G)<\/a><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau chu\u1ea9n Ethernet \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1000BASE-SX\/LX<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-SR\/LR\/ER<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>25GBASE-SR\/LR<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1,25 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10,3125 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>25,78125 Gbps<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u1edbp truy c\u1eadp<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u1edbp t\u1ed5ng h\u1ee3p \/ Trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ch\u1ec9 h\u1ed7 tr\u1ee3 natively 1G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t s\u1ed1 c\u1ed5ng h\u1ed7 tr\u1ee3 tr\u1edf l\u1ea1i (fallback) \u1edf m\u1ee9c 1G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Hi\u1ebfm khi h\u1ed7 tr\u1ee3 tr\u1edf l\u1ea1i (fallback) \u1edf m\u1ee9c 10G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung b\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n SFP+<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Tri\u1ec3n khai ph\u1ed5 bi\u1ebfn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LAN doanh nghi\u1ec7p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i uplink m\u00e1y ch\u1ee7<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ki\u1ebfn tr\u00fac leaf-spine<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa k\u1ef9 thu\u1eadt quan tr\u1ecdng:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un SFP, SFP+ v\u00e0 SFP28 c\u00f3 c\u00f9ng d\u1ea1ng h\u00ecnh h\u1ecdc t\u01b0\u01a1ng t\u1ef1 nhau, giao di\u1ec7n \u0111i\u1ec7n v\u00e0 t\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u l\u1ea1i kh\u00e1c nhau. M\u1ed9t m\u00f4-\u0111un SFP 1G kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 10G thu\u1ea7n t\u00fay, v\u00e0 m\u1ed9t m\u00f4-\u0111un SFP28 25G \u0111\u00f2i h\u1ecfi c\u1ed5ng ph\u1ea3i h\u1ed7 tr\u1ee3 25G.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP 1G v\u00e0 SFP 10G l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa m\u00f4-\u0111un SFP 1G v\u00e0 SFP+ 10G l\u00e0:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">T\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476866.htm\" target=\"_self\">SFP 1G<\/a> ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n 1,25 Gbps.<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/482793.htm\" target=\"_self\">SFP+ 10G<\/a> ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n 10,3125 Gbps.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 s\u1ef1 gia t\u0103ng b\u0103ng th\u00f4ng g\u1ea5p m\u01b0\u1eddi l\u1ea7n.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Giao di\u1ec7n \u0111i\u1ec7n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">SFP+ lo\u1ea1i b\u1ecf m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n \u0111i\u1ec1u ki\u1ec7n t\u00edn hi\u1ec7u kh\u1ecfi m\u00f4-\u0111un v\u00e0 chuy\u1ec3n ch\u00fang sang bo m\u1ea1ch ch\u1ee7. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0ng y\u00eau c\u1ea7u c\u1ed5ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho ho\u1ea1t \u0111\u1ed9ng 10G.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">L\u1edbp \u1ee8ng d\u1ee5ng<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t tri\u1ec3n khai \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP 1G: c\u1ed5ng truy c\u1eadp ng\u01b0\u1eddi d\u00f9ng, li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng c\u0169.<\/p><\/li>\n\n\n\n<li><p>SFP+ 10G: li\u00ean k\u1ebft l\u00ean m\u00e1y ch\u1ee7, t\u1ed5ng h\u1ee3p chuy\u1ec3n m\u1ea1ch, m\u00f4i tr\u01b0\u1eddng \u1ea3o h\u00f3a.<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">T\u01b0\u01a1ng th\u00edch c\u1ed5ng<\/h4>\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>M\u1ed9t m\u00f4-\u0111un SFP 1G kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong c\u1ed5ng SFP+ ch\u1ec9 h\u1ed7 tr\u1ee3 10G.<\/p><\/li>\n\n\n\n<li><p>M\u1ed9t s\u1ed1 c\u1ed5ng SFP+ 10G h\u1ed7 tr\u1ee3 <a href=\"https:\/\/www.l-p.com\/products\/476862.htm\" target=\"_self\">Tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, c\u00e1c c\u1ed5ng SFP+ h\u1ed7 tr\u1ee3 t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi<\/a>, nh\u01b0ng \u0111i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf b\u1ed9 chuy\u1ec3n m\u1ea1ch.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n x\u00e1c minh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ph\u1ea7n c\u1ee9ng tr\u01b0\u1edbc khi k\u1ebft h\u1ee3p c\u00e1c t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP 10G v\u00e0 25G l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP+ (10G) v\u00e0 SFP28 (25G) kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1edf r\u1ed9ng t\u1ed1c \u0111\u1ed9.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">T\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP+ 10G: 10,3125 Gbps<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476046.htm\" target=\"_self\">SFP28 25G<\/a>: 25,78125 Gbps<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">25G cung c\u1ea5p b\u0103ng th\u00f4ng g\u1ea5p 2,5 l\u1ea7n so v\u1edbi 10G tr\u00ean m\u1ed7i k\u00eanh.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Hi\u1ec7u qu\u1ea3 m\u1ea1ng<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ethernet 25G c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 chi ph\u00ed tr\u00ean m\u1ed7i bit trong trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i. Thay v\u00ec t\u1eadp h\u1ee3p nhi\u1ec1u li\u00ean k\u1ebft 10G, m\u1ed9t li\u00ean k\u1ebft 25G duy nh\u1ea5t cung c\u1ea5p th\u00f4ng l\u01b0\u1ee3ng cao h\u01a1n v\u1edbi s\u1ed1 l\u01b0\u1ee3ng c\u00e1p \u00edt h\u01a1n.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Y\u00eau c\u1ea7u v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ho\u1ea1t \u0111\u1ed9ng 25G \u0111\u00f2i h\u1ecfi t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u ch\u1eb7t ch\u1ebd h\u01a1n v\u00e0 dung sai \u0111\u1ed9 m\u00e9o (jitter) th\u1ea5p h\u01a1n. Do \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c c\u1ed5ng 25G \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf r\u00f5 r\u00e0ng d\u00e0nh ri\u00eang cho m\u00f4-\u0111un SFP28.<\/p><\/li>\n\n\n\n<li><p>C\u00e1c m\u00f4-\u0111un SFP+ 10G th\u01b0\u1eddng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c c\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 25G tr\u1eeb khi \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 \u0111\u1eb7c bi\u1ec7t.<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">B\u1ed1i c\u1ea3nh tri\u1ec3n khai<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>10G: ph\u1ed5 bi\u1ebfn trong m\u1ea1ng doanh nghi\u1ec7p.<\/p><\/li>\n\n\n\n<li><p>25G: ph\u1ed5 bi\u1ebfn trong ki\u1ebfn tr\u00fac l\u00e1\u2013c\u1ed9t (leaf-spine) quy m\u00f4 l\u1edbn v\u00e0 m\u1eadt \u0111\u1ed9 cao.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch x\u00e1c \u0111\u1ecbnh m\u1ed9t SFP l\u00e0 1G hay 10G<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh x\u1ebfp h\u1ea1ng t\u1ed1c \u0111\u1ed9 c\u1ee7a m\u00f4-\u0111un SFP b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p sau:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ki\u1ec3m tra nh\u00e3n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00e3n m\u00f4-\u0111un th\u01b0\u1eddng bao g\u1ed3m ti\u00eau chu\u1ea9n Ethernet, v\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>1000BASE-SX \u2192 1G<\/p><\/li>\n\n\n\n<li><p>10GBASE-LR \u2192 10G<\/p><\/li>\n\n\n\n<li><p>25GBASE-SR \u2192 25G<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Ki\u1ec3m tra b\u1ea3ng d\u1eef li\u1ec7u SFP<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y t\u00ecm c\u00e1c th\u00f4ng tin sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9 bit danh \u0111\u1ecbnh<\/p><\/li>\n\n\n\n<li><p>M\u00e3 tu\u00e2n th\u1ee7 Ethernet<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i giao di\u1ec7n quang<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u0110\u1ecdc qua l\u1ec7nh CLI<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd \u0111\u1ec1u cho ph\u00e9p b\u1ea1n truy v\u1ea5n th\u00f4ng tin m\u00f4-\u0111un qua CLI:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 (thay \u0111\u1ed5i theo nh\u00e0 cung c\u1ea5p):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show interfaces transceiver detail<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u ra th\u01b0\u1eddng li\u1ec7t k\u00ea:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>T\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t<\/p><\/li>\n\n\n\n<li><p>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/li>\n\n\n\n<li><p>D\u1eef li\u1ec7u DOM (n\u1ebfu \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3)<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Ki\u1ec3m tra lo\u1ea1i c\u1ed5ng<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u1ed5ng \u0111\u01b0\u1ee3c ghi nh\u00e3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP \u2192 th\u01b0\u1eddng l\u00e0 1G<\/p><\/li>\n\n\n\n<li><p>SFP+ \u2192 th\u01b0\u1eddng l\u00e0 10G<\/p><\/li>\n\n\n\n<li><p>SFP28 \u2192 h\u1ed7 tr\u1ee3 25G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u00e1c quy \u01b0\u1edbc g\u00e1n nh\u00e3n kh\u00e1c nhau, v\u00ec v\u1eady lu\u00f4n x\u00e1c minh trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ph\u1ea7n c\u1ee9ng ch\u00ednh th\u1ee9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SFP c\u00f3 nhanh h\u01a1n RJ45 kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u h\u1ecfi n\u00e0y c\u1ea7n l\u00e0m r\u00f5 v\u00ec SFP l\u00e0 m\u1ed9t d\u1ea1ng h\u00ecnh h\u1ecdc (form factor), trong khi RJ45 l\u00e0 m\u1ed9t lo\u1ea1i \u0111\u1ea7u n\u1ed1i (connector type).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">RJ45 th\u01b0\u1eddng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c k\u1ebft n\u1ed1i Ethernet \u0111\u1ed3ng nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476812.htm\" target=\"_self\">1000BASE-T<\/a> (1G)<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/491613.htm\" target=\"_self\">10GBASE-T<\/a> (10G)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP c\u00f3 th\u1ec3 l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Quang (d\u1ef1a tr\u00ean s\u1ee3i quang)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed3ng (module SFP RJ45)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c so s\u00e1nh t\u1ed1c \u0111\u1ed9 ph\u1ee5 thu\u1ed9c v\u00e0o ti\u00eau chu\u1ea9n c\u1ee5 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP 1G (quang) = RJ45 1G (\u0111\u1ed3ng)<\/p><\/li>\n\n\n\n<li><p>SFP+ 10G (quang) = 10GBASE-T (RJ45 \u0111\u1ed3ng)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, SFP+ quang th\u01b0\u1eddng cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n<\/p><\/li>\n\n\n\n<li><p>M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch xa h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">10GBASE-T \u0111\u1ed3ng th\u01b0\u1eddng ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n v\u00e0 b\u1ecb gi\u1edbi h\u1ea1n \u1edf 100 m\u00e9t tr\u00ean c\u00e1p Cat6A ho\u1eb7c t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, SFP kh\u00f4ng t\u1ef1 th\u00e2n nhanh h\u01a1n RJ45 \u2014 t\u1ed1c \u0111\u1ed9 ph\u1ee5 thu\u1ed9c v\u00e0o ti\u00eau chu\u1ea9n Ethernet n\u1ec1n t\u1ea3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f3m t\u1eaft vi\u1ec7c l\u1ef1a ch\u1ecdn t\u1ed1c \u0111\u1ed9 module SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh ch\u1ecdn s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng, h\u00e3y x\u00e1c minh:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a \u0111\u01b0\u1ee3c c\u1ed5ng switch h\u1ed7 tr\u1ee3<br><br>\u2714 B\u0103ng th\u00f4ng uplink y\u00eau c\u1ea7u<br><br>\u2714 Y\u00eau c\u1ea7u m\u1edf r\u1ed9ng quy m\u00f4 trong t\u01b0\u01a1ng lai<br><br>\u2714 Y\u00eau c\u1ea7u v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<br><br>\u2714 C\u00e1c y\u1ebfu t\u1ed1 v\u1ec1 c\u00f4ng su\u1ea5t v\u00e0 m\u1eadt \u0111\u1ed9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 ch\u1ecdn lo\u1ea1i s\u1ee3i quang ph\u00f9 h\u1ee3p \u2014<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\">\u0111\u01a1n mode ho\u1eb7c \u0111a mode<\/a>\u2014 \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kho\u1ea3ng c\u00e1ch v\u00e0 l\u1ef1a ch\u1ecdn b\u01b0\u1edbc s\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y chuy\u1ec3n sang B\u01b0\u1edbc 3 \u2014 kh\u1edbp lo\u1ea1i s\u1ee3i quang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 3 \u2014 Kh\u1edbp lo\u1ea1i s\u1ee3i quang (\u0110\u01a1n mode so v\u1edbi \u0110a mode)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi x\u00e1c nh\u1eadn t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 t\u1ed1c \u0111\u1ed9, y\u1ebfu t\u1ed1 quan tr\u1ecdng ti\u1ebfp theo trong vi\u1ec7c l\u1ef1a ch\u1ecdn module SFP l\u00e0 <strong>lo\u1ea1i s\u1ee3i quang<\/strong>. Vi\u1ec7c ch\u1ecdn sai lo\u1ea1i s\u1ee3i quang c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c thi\u1ebft l\u1eadp li\u00ean k\u1ebft ho\u1eb7c gi\u1ea3m \u0111\u00e1ng k\u1ec3 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn. C\u00e1c module SFP th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho <strong>\u0111\u01a1n mode (SMF)<br><\/strong> or <strong>c\u00e1p quang \u0111a mode (MMF)<\/strong>, v\u00e0 m\u1ed7i lo\u1ea1i \u0111\u1ec1u c\u00f3 \u0111\u1eb7c t\u00ednh b\u01b0\u1edbc s\u00f3ng v\u00e0 kho\u1ea3ng c\u00e1ch c\u1ee5 th\u1ec3.<\/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\/5a99858c351e473da460c246cd9bbb0f.jpg\" alt=\"Step 3 \u2014 Match the Fiber Type (Single-Mode vs. Multi-Mode)\" class=\"wp-image-3197\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a99858c351e473da460c246cd9bbb0f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a99858c351e473da460c246cd9bbb0f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a99858c351e473da460c246cd9bbb0f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a99858c351e473da460c246cd9bbb0f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a99858c351e473da460c246cd9bbb0f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch x\u00e1c \u0111\u1ecbnh m\u1ed9t module SFP l\u00e0 SM hay MM<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c x\u00e1c \u0111\u1ecbnh m\u1ed9t module SFP l\u00e0 \u0111\u01a1n mode hay \u0111a mode c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n b\u1eb1ng nhi\u1ec1u c\u00e1ch:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Ki\u1ec3m tra nh\u00e3n\/s\u1ed1 hi\u1ec7u b\u1ed9 ph\u1eadn<\/strong><br>Nh\u00e3n c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c module SFP \u0111\u1ec1u ghi r\u00f5 lo\u1ea1i s\u1ee3i quang, v\u00ed d\u1ee5:<\/p>\n<ul class=\"wp-block-list\">\n<li><p><strong>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<\/strong> \u2192 Th\u01b0\u1eddng l\u00e0 s\u1ee3i \u0111a mode (MMF, t\u1ea7m ng\u1eafn)<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/477879.htm\" target=\"_self\"><strong>1000BASE-LX<\/strong><\/a><strong>\/LR<\/strong> \u2192 Th\u01b0\u1eddng l\u00e0 s\u1ee3i \u0111\u01a1n mode (SMF, t\u1ea7m xa)<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Tham kh\u1ea3o b\u1ea3ng d\u1eef li\u1ec7u (datasheet)<\/strong><br>B\u1ea3ng d\u1eef li\u1ec7u n\u00eau r\u00f5:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Lo\u1ea1i s\u1ee3i quang (SM\/MM)<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>B\u01b0\u1edbc s\u00f3ng (nm)<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Ki\u1ec3m tra tr\u1ef1c quan m\u00e0u \u0111\u1ea7u n\u1ed1i<\/strong> (Quy \u01b0\u1edbc ng\u00e0nh)<\/p>\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea7u n\u1ed1i m\u00e0u cam ho\u1eb7c xanh n\u01b0\u1edbc bi\u1ec3n \u2192 S\u1ee3i quang \u0111a mode (MMF)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea7u n\u1ed1i m\u00e0u v\u00e0ng \u2192 S\u1ee3i quang \u0111\u01a1n mode (SMF)<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Ki\u1ec3m tra b\u01b0\u1edbc s\u00f3ng<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>850nm \u2192 Th\u01b0\u1eddng d\u00f9ng cho s\u1ee3i quang \u0111a mode (MMF)<\/p><\/li>\n\n\n\n<li><p>1310nm ho\u1eb7c 1550nm \u2192 Th\u01b0\u1eddng d\u00f9ng cho s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n x\u00e1c minh v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh th\u1ee9c; m\u00e3 m\u00e0u ri\u00eang c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch c\u1ee7a s\u1ee3i quang \u0111a mode (OM1\u2013OM5)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng c\u1ef1 ly ng\u1eafn \u0111\u1ebfn trung b\u00ecnh b\u1eb1ng nhi\u1ec1u mode \u00e1nh s\u00e1ng. Gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea3 lo\u1ea1i s\u1ee3i v\u00e0 module SFP:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1eddng k\u00ednh l\u00f5i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a (1G)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a (10G)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a (25G\/40G)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><p>The table below provides a clear comparison of supported MMF types and their typical reach:<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><p>Core Size<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>275 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>33 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng \u00e1p d\u1ee5ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><p>Up to 275 m (900 ft)<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><p>Legacy building infrastructure<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>82 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng \u00e1p d\u1ee5ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><p>Up to 550 m (1,800 ft)<\/p><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50 \u00b5m, t\u1ed1i \u01b0u cho laser<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>300 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>300 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50 \u00b5m, t\u1ed1i \u01b0u cho laser<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>400 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>150 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>OM5<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50 \u00b5m, d\u1ea3i t\u1ea7n r\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>400 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>150 m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ghi ch\u00fa quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>MMF l\u00fd t\u01b0\u1edfng cho trung t\u00e2m d\u1eef li\u1ec7u, doanh nghi\u1ec7p <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/local-area-network-lan-modern-networking-fast-secure-connections\/\" target=\"_blank\" rel=\"\">M\u1ea1ng LAN<\/a>, v\u00e0 k\u1ebft n\u1ed1i trong t\u00f2a nh\u00e0.<\/p><\/li>\n\n\n\n<li><p>B\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n (850nm) th\u01b0\u1eddng d\u00f9ng cho MMF.<\/p><\/li>\n\n\n\n<li><p>N\u00e2ng c\u1ea5p l\u00ean OM3\/OM4 cho ph\u00e9p t\u1ed1c \u0111\u1ed9 cao h\u01a1n v\u00e0 kho\u1ea3ng c\u00e1ch xa h\u01a1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ee3i quang \u0111\u01a1n mode cho li\u00ean k\u1ebft c\u1ef1 ly d\u00e0i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111\u01a1n mode (SMF) s\u1eed d\u1ee5ng m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n \u00e1nh s\u00e1ng duy nh\u1ea5t, cho ph\u00e9p <strong>truy\u1ec1n d\u1eabn b\u0103ng th\u00f4ng cao tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i<\/strong>. \u0110\u1eb7c t\u00ednh \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau chu\u1ea9n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>1000BASE-LX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00f5i m\u1ea1ng khu\u00f4n vi\u00ean<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-LR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i \u0111\u00f4 th\u1ecb (metro) vi\u1ec5n th\u00f4ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476854.htm\">10GBASE-ER<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng doanh nghi\u1ec7p v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 kho\u1ea3ng c\u00e1ch xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491478.htm\">25GBASE-ER<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>25GBASE-ESR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng doanh nghi\u1ec7p v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 kho\u1ea3ng c\u00e1ch xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m c\u1ee7a SMF:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 t\u00e1n s\u1eafc mode c\u1ef1c th\u1ea5p \u2192 kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Ti\u1ec1m n\u0103ng t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch v\u1edbi m\u1ea1ng DWDM v\u00e0 CWDM \u0111\u01b0\u1eddng d\u00e0i<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Lo\u1ea1i s\u1ee3i n\u00e0o t\u1ed1t h\u01a1n cho kho\u1ea3ng c\u00e1ch d\u00e0i?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quy t\u1eafc chung:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>&gt;550 m\u00e9t (10G MMF ho\u1eb7c ng\u1eafn h\u01a1n)<\/strong> \u2192 \u01afu ti\u00ean d\u00f9ng s\u1ee3i quang \u0111\u01a1n mode.<\/p><\/li>\n\n\n\n<li><p><strong>&lt;300\u2013400 m\u00e9t trong trung t\u00e2m d\u1eef li\u1ec7u<\/strong> \u2192 S\u1ee3i quang \u0111a mode ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch<\/strong> \u2014 SMF h\u1ed7 tr\u1ee3 h\u00e0ng ch\u1ee5c kil\u00f4m\u00e9t; MMF b\u1ecb gi\u1edbi h\u1ea1n \u1edf v\u00e0i tr\u0103m m\u00e9t.<\/p><\/li>\n\n\n\n<li><p><strong>Cost<\/strong> \u2014 S\u1ee3i quang \u0111a mode v\u00e0 b\u1ed9 thu ph\u00e1t th\u01b0\u1eddng r\u1ebb h\u01a1n.<\/p><\/li>\n\n\n\n<li><p><strong>\u0110\u01b0\u1eddng n\u00e2ng c\u1ea5p m\u1ea1ng<\/strong> \u2014 SMF \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u01b0\u01a1ng lai cho c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao h\u01a1n.<\/p><\/li>\n\n\n\n<li><p><strong>Ng\u00e2n s\u00e1ch quang h\u1ecdc<\/strong> \u2014 SMF th\u01b0\u1eddng c\u00f3 suy hao th\u1ea5p h\u01a1n m\u1ed7i kil\u00f4m\u00e9t.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch gh\u00e9p \u0111\u00fang lo\u1ea1i s\u1ee3i v\u1edbi module SFP v\u00e0 kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft, b\u1ea1n \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i quang \u1ed5n \u0111\u1ecbnh v\u00e0 tr\u00e1nh c\u00e1c l\u1ed7i tri\u1ec3n khai ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, ch\u00fang ta s\u1ebd th\u1ea3o lu\u1eadn <strong>B\u01b0\u1edbc 4 \u2014 ch\u1ecdn b\u01b0\u1edbc s\u00f3ng ph\u00f9 h\u1ee3p<\/strong> \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u lo\u1ea1i s\u1ee3i v\u00e0 kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 4 \u2014 Ch\u1ecdn b\u01b0\u1edbc s\u00f3ng SFP ph\u00f9 h\u1ee3p (850nm, 1310nm, 1550nm)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh t\u00ednh t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9 v\u00e0 lo\u1ea1i s\u1ee3i, tham s\u1ed1 quan tr\u1ecdng ti\u1ebfp theo l\u00e0 <strong>b\u01b0\u1edbc s\u00f3ng<\/strong>. \u0110\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng c\u1ee7a module SFP x\u00e1c \u0111\u1ecbnh t\u1ea7n s\u1ed1 \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho truy\u1ec1n d\u1eabn quang v\u00e0 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kho\u1ea3ng c\u00e1ch, suy hao v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng li\u00ean k\u1ebft. Vi\u1ec7c ch\u1ecdn sai \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn th\u1ea5t b\u1ea1i li\u00ean k\u1ebft ho\u1eb7c hi\u1ec7u su\u1ea5t gi\u1ea3m.<\/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\/6ee1525993ca43048d4f11f94f700fab.jpg\" alt=\"Step 4 \u2014 Select the Correct SFP Wavelength (850nm, 1310nm, 1550nm)\" class=\"wp-image-3198\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ee1525993ca43048d4f11f94f700fab.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ee1525993ca43048d4f11f94f700fab-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ee1525993ca43048d4f11f94f700fab-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ee1525993ca43048d4f11f94f700fab-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6ee1525993ca43048d4f11f94f700fab-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng quan tr\u1ecdng trong m\u1ea1ng s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng kh\u00f4ng ph\u1ea3i l\u00e0 ng\u1eabu nhi\u00ean\u2014n\u00f3 x\u00e1c \u0111\u1ecbnh:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn:<br><\/strong> M\u1ed9t s\u1ed1 \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng lan truy\u1ec1n v\u1edbi m\u1ee9c t\u1ed5n hao th\u1ea5p h\u01a1n tr\u00ean c\u00e1c lo\u1ea1i s\u1ee3i quang c\u1ee5 th\u1ec3.<\/p><\/li>\n\n\n\n<li><p><strong>T\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9:<\/strong> \u0110\u1eb7c bi\u1ec7t li\u00ean quan \u0111\u1ebfn s\u1ee3i \u0111a mode (MMF), n\u01a1i c\u00e1c \u0111\u01b0\u1eddng \u0111i kh\u00e1c nhau c\u1ee7a \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 \u0111\u1ebfn \u0111\u00edch v\u00e0o nh\u1eefng th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau.<\/p><\/li>\n\n\n\n<li><p><strong>Ng\u00e2n s\u00e1ch quang h\u1ecdc:<\/strong> S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa c\u00f4ng su\u1ea5t b\u1ed9 ph\u00e1t, t\u1ed5n hao s\u1ee3i v\u00e0 \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng.<\/p><\/li>\n\n\n\n<li><p><strong>T\u00ednh t\u01b0\u01a1ng th\u00edch:<\/strong> <a href=\"https:\/\/www.l-p.com\/products\/492180.htm\" target=\"_self\">SFP MMF<\/a> c\u00e1c module \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c li\u00ean k\u1ebft ng\u1eafn 850 nm, trong khi <a href=\"https:\/\/www.l-p.com\/products\/491992.htm\" target=\"_self\">c\u00e1c module SMF<\/a> ho\u1ea1t \u0111\u1ed9ng \u1edf 1310 nm ho\u1eb7c 1550 nm cho kho\u1ea3ng c\u00e1ch xa.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c l\u1ef1a ch\u1ecdn sai \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng l\u00e0 nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u g\u00e2y ra s\u1ef1 c\u1ed1 li\u00ean k\u1ebft quang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">850 nm cho MMF t\u1ea7m ng\u1eafn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492180.htm\"><strong>SFP 850nm<\/strong><\/a><strong> m\u00f4-\u0111un<\/strong> 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 k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn (l\u00ean \u0111\u1ebfn 550 m\u00e9t t\u00f9y theo lo\u1ea1i MMF)<\/p><\/li>\n\n\n\n<li><p>S\u1ee3i quang \u0111a mode (OM1\u2013OM5)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ho\u1ea1t \u0111\u1ed9ng t\u1ed1t c\u1ea3 v\u1edbi OM3 v\u00e0 OM4 cho c\u00e1c li\u00ean k\u1ebft 10G v\u00e0 25G.<\/p><\/li>\n\n\n\n<li><p>Ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea7u n\u1ed1i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p><\/li>\n\n\n\n<li><p>Th\u00f4ng th\u01b0\u1eddng r\u1ebb h\u01a1n c\u00e1c module \u0111\u01a1n mode.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ed d\u1ee5:<\/strong><br>M\u1ed9t module SFP 10GBASE-SR ho\u1ea1t \u0111\u1ed9ng \u1edf 850 nm tr\u00ean s\u1ee3i OM4 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 tin c\u1eady l\u00ean \u0111\u1ebfn 400 m\u00e9t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1310 nm so v\u1edbi 1550 nm cho SMF<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For <strong>v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/strong>, hai \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng:<\/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>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>1310nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p, li\u00ean k\u1ebft khu\u00f4n vi\u00ean<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u201380 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, DWDM \u0111\u01b0\u1eddng d\u00e0i<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>1310 nm: T\u1ed5n hao th\u1ea5p h\u01a1n so v\u1edbi 850 nm tr\u00ean SMF, chi ph\u00ed hi\u1ec7u qu\u1ea3 cho c\u00e1c li\u00ean k\u1ebft SMF t\u1ea7m ng\u1eafn \u0111\u1ebfn trung b\u00ecnh.<\/p><\/li>\n\n\n\n<li><p>1550 nm: T\u1ed5n hao th\u1ea5p nh\u1ea5t v\u00e0 ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i; th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi khu\u1ebfch \u0111\u1ea1i quang ho\u1eb7c DWDM.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492168.htm\">SFP SMF<\/a> C\u00e1c module ph\u1ea3i kh\u1edbp v\u1edbi \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng thi\u1ebft k\u1ebf c\u1ee7a s\u1ee3i \u0111\u1ec3 tr\u00e1nh t\u1ed5n hao qu\u00e1 m\u1ee9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Tr\u1ed9n l\u1eabn \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng cho MMF v\u00e0 SMF:<\/strong> Vi\u1ec7c s\u1eed d\u1ee5ng module 1310 nm tr\u00ean MMF th\u01b0\u1eddng th\u1ea5t b\u1ea1i do t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 cao h\u01a1n.<\/p><\/li>\n\n\n\n<li><p><strong>Hai \u0111\u1ea7u li\u00ean k\u1ebft kh\u00f4ng kh\u1edbp:<\/strong> C\u1ea3 hai \u0111\u1ea7u s\u1ee3i ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c module SFP c\u00f3 c\u00f9ng \u0111\u1ed9 d\u00e0i b\u01b0\u1edbc s\u00f3ng v\u00e0 c\u00f4ng su\u1ea5t quang t\u01b0\u01a1ng th\u00edch.<\/p><\/li>\n\n\n\n<li><p><strong>B\u1ecf qua gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch:<\/strong> Vi\u1ec7c ch\u1ecdn b\u01b0\u1edbc s\u00f3ng 850 nm cho li\u00ean k\u1ebft SMF 10 km s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng; suy hao s\u1ebd ng\u0103n ch\u1eb7n vi\u1ec7c thu t\u00edn hi\u1ec7u.<\/p><\/li>\n\n\n\n<li><p><strong>Gi\u1ea3 \u0111\u1ecbnh B\u01b0\u1edbc s\u00f3ng D\u00e0i h\u01a1n = T\u1ed1t h\u01a1n:<\/strong> B\u01b0\u1edbc s\u00f3ng 1550 nm ch\u1ec9 c\u00f3 l\u1ee3i th\u1ebf \u1edf kho\u1ea3ng c\u00e1ch xa; tr\u00ean c\u00e1c li\u00ean k\u1ebft MMF ng\u1eafn, 850 nm l\u00e0 t\u1ed1i \u01b0u.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u01b0\u1edbc s\u00f3ng \u0111\u00fang \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng quang h\u1ecdc, gi\u1ea3m l\u1ed7i v\u00e0 t\u1ed1i \u0111a h\u00f3a tu\u1ed5i th\u1ecd li\u00ean k\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, ch\u00fang ta s\u1ebd tr\u00ecnh b\u00e0y <strong>B\u01b0\u1edbc 5 \u2014 X\u00e1c \u0111\u1ecbnh Kho\u1ea3ng c\u00e1ch Truy\u1ec1n d\u1eabn Y\u00eau c\u1ea7u<\/strong>, k\u1ebft h\u1ee3p lo\u1ea1i s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng th\u00e0nh h\u01b0\u1edbng d\u1eabn tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 5 \u2014 X\u00e1c \u0111\u1ecbnh Kho\u1ea3ng c\u00e1ch Truy\u1ec1n d\u1eabn Y\u00eau c\u1ea7u c\u1ee7a SFP<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi x\u00e1c nh\u1eadn t\u00ednh t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9, lo\u1ea1i s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng, y\u1ebfu t\u1ed1 quan tr\u1ecdng ti\u1ebfp theo trong vi\u1ec7c l\u1ef1a ch\u1ecdn module SFP l\u00e0 <strong>kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn<\/strong>. M\u1ed7i module SFP c\u00f3 kho\u1ea3ng c\u00e1ch h\u1ed7 tr\u1ee3 t\u1ed1i \u0111a \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00f4ng su\u1ea5t quang c\u1ee7a n\u00f3, lo\u1ea1i s\u1ee3i quang, b\u01b0\u1edbc s\u00f3ng v\u00e0 t\u1ed5n hao li\u00ean k\u1ebft. Vi\u1ec7c ch\u1ecdn module kh\u00f4ng th\u1ec3 bao ph\u1ee7 kho\u1ea3ng c\u00e1ch y\u00eau c\u1ea7u s\u1ebd d\u1eabn \u0111\u1ebfn l\u1ed7i li\u00ean k\u1ebft ho\u1eb7c hi\u1ec7u n\u0103ng suy gi\u1ea3m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nh\u00e0 quy ho\u1ea1ch m\u1ea1ng ph\u1ea3i kh\u1edbp c\u1ea9n th\u1eadn lo\u1ea1i module v\u1edbi y\u00eau c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a li\u00ean k\u1ebft v\u1eadt l\u00fd.<\/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\/97c2019f766249ca9d066b1706b0e710.jpg\" alt=\"Step 5 \u2014 Determine Required SFP Transmission Distance\" class=\"wp-image-3199\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/97c2019f766249ca9d066b1706b0e710.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/97c2019f766249ca9d066b1706b0e710-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/97c2019f766249ca9d066b1706b0e710-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/97c2019f766249ca9d066b1706b0e710-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/97c2019f766249ca9d066b1706b0e710-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea3ng \u00c1nh x\u1ea1 Kho\u1ea3ng c\u00e1ch Ti\u00eau bi\u1ec3u (SR, LR, ER, ZR)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean <strong>ph\u1ea1m vi kho\u1ea3ng c\u00e1ch<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i m\u00f4-\u0111un<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>SR (Kho\u1ea3ng c\u00e1ch ng\u1eafn)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>MMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0\u2013550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u, li\u00ean k\u1ebft n\u1ed9i b\u1ed9 t\u00f2a nh\u00e0<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>LR (Kho\u1ea3ng c\u00e1ch d\u00e0i)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0\u201310 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00f5i m\u1ea1ng khu\u00f4n vi\u00ean, m\u1ea1ng doanh nghi\u1ec7p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>ER (Ph\u1ea1m vi M\u1edf r\u1ed9ng)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10\u201340 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb, li\u00ean k\u1ebft doanh nghi\u1ec7p \u0111\u01b0\u1eddng d\u00e0i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>ZR (Ph\u1ea1m vi Si\u00eau \u0111\u01b0\u1eddng d\u00e0i)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u201380 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng c\u1ea5p nh\u00e0 cung c\u1ea5p, DWDM \u0111\u01b0\u1eddng d\u00e0i<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ghi ch\u00fa quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476073.htm\" target=\"_self\">SFP-SR<\/a> c\u00e1c module \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho s\u1ee3i quang \u0111a mode t\u1ea1i 850 nm; LR, ER, ZR d\u00f9ng cho s\u1ee3i quang \u0111\u01a1n mode.<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 suy hao quang, ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea7u n\u1ed1i v\u00e0 h\u00e0n n\u1ed1i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kho\u1ea3ng c\u00e1ch \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p><\/li>\n\n\n\n<li><p>Lu\u00f4n c\u00e2n nh\u1eafc m\u1ed9t <strong>\u0111\u1ec7m an to\u00e0n<\/strong> \u0111\u1ec3 d\u1ef1 ph\u00f2ng cho hi\u1ec7n t\u01b0\u1ee3ng l\u00e3o h\u00f3a s\u1ee3i quang v\u00e0 thay \u0111\u1ed5i m\u1ea1ng trong t\u01b0\u01a1ng lai.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch ch\u1ecdn SFP cho kho\u1ea3ng c\u00e1ch 300 m, 10 km, 40 km, 80 km<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch th\u1ef1c t\u1ebf:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch Li\u00ean k\u1ebft<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Module SFP \u0110\u1ec1 xu\u1ea5t<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>300 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-SR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111a mode OM3\/OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-LR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng doanh nghi\u1ec7p v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 kho\u1ea3ng c\u00e1ch xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-ER<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>80 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476858.htm\">10GBASE-ZR<\/a> \/ DWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u01b0\u1edbng d\u1eabn:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>X\u00e1c \u0111\u1ecbnh <strong>chi\u1ec1u d\u00e0i s\u1ee3i quang th\u1ef1c t\u1ebf<\/strong>, bao g\u1ed3m c\u1ea3 b\u1ea3ng \u0111\u1ea5u n\u1ed1i v\u00e0 c\u00e1c m\u1ed1i h\u00e0n n\u1ed1i.<\/p><\/li>\n\n\n\n<li><p>Ch\u1ecdn module SFP c\u00f3 kho\u1ea3ng c\u00e1ch h\u1ed7 tr\u1ee3 v\u01b0\u1ee3t qu\u00e1 kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft v\u1edbi d\u1ef1 ph\u00f2ng.<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra lo\u1ea1i s\u1ee3i quang ph\u00f9 h\u1ee3p v\u1edbi module (MMF ho\u1eb7c SMF).<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch b\u01b0\u1edbc s\u00f3ng \u1edf c\u1ea3 hai \u0111\u1ea7u li\u00ean k\u1ebft.<\/p><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">C\u01a1 b\u1ea3n v\u1ec1 Ng\u00e2n s\u00e1ch C\u00f4ng su\u1ea5t v\u00e0 D\u1ef1 ph\u00f2ng Li\u00ean k\u1ebft<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang<\/strong> l\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch gi\u1eefa c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a b\u1ed9 ph\u00e1t v\u00e0 \u0111\u1ed9 nh\u1ea1y t\u1ed1i thi\u1ec3u c\u1ee7a b\u1ed9 thu. N\u00f3 x\u00e1c \u0111\u1ecbnh m\u1ee9c t\u1ed5n hao quang h\u1ecdc m\u00e0 \u0111\u01b0\u1eddng truy\u1ec1n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00f4ng th\u1ee9c:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t (dB) = C\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a b\u1ed9 ph\u00e1t (dBm) \u2013 \u0110\u1ed9 nh\u1ea1y c\u1ee7a b\u1ed9 thu (dBm)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c t\u1ed5n hao trong \u0111\u01b0\u1eddng truy\u1ec1n bao g\u1ed3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed5n hao s\u1ee3i quang (dB\/km \u00d7 chi\u1ec1u d\u00e0i)<\/p><\/li>\n\n\n\n<li><p>T\u1ed5n hao \u0111\u1ea7u n\u1ed1i (th\u01b0\u1eddng 0,3\u20130,5 dB tr\u00ean m\u1ed7i \u0111\u1ea7u n\u1ed1i)<\/p><\/li>\n\n\n\n<li><p>T\u1ed5n hao m\u1ed1i h\u00e0n (th\u01b0\u1eddng 0,1\u20130,3 dB tr\u00ean m\u1ed7i m\u1ed1i h\u00e0n)<\/p><\/li>\n\n\n\n<li><p>D\u1ef1 ph\u00f2ng d\u1ef1 ph\u00f2ng (khuy\u1ebfn ngh\u1ecb 1\u20133 dB)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u1ef1 ph\u00f2ng \u0111\u01b0\u1eddng truy\u1ec1n:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>D\u1ef1 ph\u00f2ng \u0111\u01b0\u1eddng truy\u1ec1n (dB) = Ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t \u2013 T\u1ed5ng t\u1ed5n hao \u0111\u01b0\u1eddng truy\u1ec1n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>D\u1ef1 ph\u00f2ng d\u01b0\u01a1ng \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh.<\/p><\/li>\n\n\n\n<li><p>D\u1ef1 ph\u00f2ng \u00e2m cho th\u1ea5y module SFP kh\u00f4ng th\u1ec3 h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch \u0111\u01b0\u1eddng truy\u1ec1n \u0111\u00f3.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ed d\u1ee5:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00f4ng su\u1ea5t b\u1ed9 ph\u00e1t = \u20133 dBm<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu = \u201317 dBm \u2192 Ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t = 14 dB<\/p><\/li>\n\n\n\n<li><p>T\u1ed5n hao s\u1ee3i quang = 8 dB, \u0111\u1ea7u n\u1ed1i = 1,5 dB, m\u1ed1i h\u00e0n = 0,5 dB \u2192 T\u1ed5ng t\u1ed5n hao = 10 dB<\/p><\/li>\n\n\n\n<li><p>D\u1ef1 ph\u00f2ng \u0111\u01b0\u1eddng truy\u1ec1n = 14 \u2013 10 = 4 dB (\u0111\u1ee7 \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>K\u1ebft lu\u1eadn:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n ki\u1ec3m tra c\u1ea3 hai y\u1ebfu t\u1ed1 <strong>kho\u1ea3ng c\u00e1ch<br><\/strong> and <strong>ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang<\/strong> khi ch\u1ecdn module SFP, \u0111\u1eb7c bi\u1ec7t cho c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n kho\u1ea3ng c\u00e1ch xa ho\u1eb7c t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, ch\u00fang ta s\u1ebd tr\u00ecnh b\u00e0y <strong>B\u01b0\u1edbc 6 \u2014 C\u00e2n nh\u1eafc m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh<\/strong>, \u0111i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o module SFP c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong \u0111i\u1ec1u ki\u1ec7n th\u01b0\u01a1ng m\u1ea1i ho\u1eb7c c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 6 \u2014 C\u00e2n nh\u1eafc m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh (module SFP th\u01b0\u01a1ng m\u1ea1i so v\u1edbi c\u00f4ng nghi\u1ec7p)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9, lo\u1ea1i s\u1ee3i quang, b\u01b0\u1edbc s\u00f3ng v\u00e0 kho\u1ea3ng c\u00e1ch, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 c\u00e2n nh\u1eafc <strong>m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh<\/strong> c\u1ee7a module SFP. Nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m, rung \u0111\u1ed9ng v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng kh\u00e1c \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a b\u1ed9 thu ph\u00e1t quang. Vi\u1ec7c ch\u1ecdn sai lo\u1ea1i module cho \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i \u0111\u01b0\u1eddng truy\u1ec1n b\u1ea5t ng\u1edd ho\u1eb7c h\u01b0 h\u1ecfng v\u0129nh vi\u1ec5n module.<\/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\/2c3dc3a296844b1693332c85264ba39b.jpg\" alt=\"Step 6 \u2014 Consider Operating Environment (Commercial vs. Industrial SFP Modules)\" class=\"wp-image-3200\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2c3dc3a296844b1693332c85264ba39b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2c3dc3a296844b1693332c85264ba39b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2c3dc3a296844b1693332c85264ba39b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2c3dc3a296844b1693332c85264ba39b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2c3dc3a296844b1693332c85264ba39b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">D\u1ea3i nhi\u1ec7t \u0111\u1ed9 th\u01b0\u01a1ng m\u1ea1i (0\u00b0C \u0111\u1ebfn 70\u00b0C)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492168.htm\"><strong>Module SFP c\u1ea5p th\u01b0\u01a1ng m\u1ea1i<\/strong><\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u00f4i tr\u01b0\u1eddng v\u0103n ph\u00f2ng ti\u00eau chu\u1ea9n, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 trong nh\u00e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Y\u00eau c\u1ea7u c\u1eb7p m\u00f4-\u0111un c\u00f3 b\u01b0\u1edbc s\u00f3ng b\u1ed5 sung<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng: <strong>0\u00b0C \u0111\u1ebfn 70\u00b0C (32\u00b0F \u0111\u1ebfn 158\u00b0F)<\/strong><\/p><\/li>\n\n\n\n<li><p>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh: Switch doanh nghi\u1ec7p, b\u1ea3ng \u0111\u1ea5u n\u1ed1i trong nh\u00e0, t\u1ee7 m\u00e1y ch\u1ee7 ti\u00eau chu\u1ea9n<\/p><\/li>\n\n\n\n<li><p>Chi ph\u00ed th\u1ea5p h\u01a1n so v\u1edbi module c\u00f4ng nghi\u1ec7p<\/p><\/li>\n\n\n\n<li><p>Ch\u1ecbu \u0111\u1ef1ng h\u1ea1n ch\u1ebf \u0111\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u1ef1c cao, c\u1ef1c th\u1ea5p ho\u1eb7c rung \u0111\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Module SFP th\u01b0\u01a1ng m\u1ea1i \u0111\u1ee7 d\u00f9ng cho h\u1ea7u h\u1ebft c\u00e1c l\u1eafp \u0111\u1eb7t trong nh\u00e0 n\u01a1i \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D\u1ea3i nhi\u1ec7t \u0111\u1ed9 c\u00f4ng nghi\u1ec7p (\u221240\u00b0C \u0111\u1ebfn 85\u00b0C)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/489088.htm\"><strong>Module SFP chu\u1ea9n c\u00f4ng nghi\u1ec7p<\/strong><\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t, bao g\u1ed3m tri\u1ec3n khai ngo\u00e0i tr\u1eddi ho\u1eb7c trong nh\u00e0 m\u00e1y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Y\u00eau c\u1ea7u c\u1eb7p m\u00f4-\u0111un c\u00f3 b\u01b0\u1edbc s\u00f3ng b\u1ed5 sung<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng: <strong>\u221240\u00b0C \u0111\u1ebfn 85\u00b0C (\u221240\u00b0F \u0111\u1ebfn 185\u00b0F)<\/strong><\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 ch\u1ecbu \u0111\u1ef1ng m\u00f4i tr\u01b0\u1eddng m\u1edf r\u1ed9ng \u0111\u1ed1i v\u1edbi:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>Nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p ho\u1eb7c c\u1ef1c cao<\/p><\/li>\n\n\n\n<li><p>B\u1ee5i, \u0111\u1ed9 \u1ea9m v\u00e0 rung \u0111\u1ed9ng<\/p><\/li>\n\n\n\n<li><p>H\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a nh\u00e0 m\u00e1y ho\u1eb7c c\u00f4ng nghi\u1ec7p<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p>Th\u01b0\u1eddng bao g\u1ed3m b\u1ea3ng m\u1ea1ch in (PCB) v\u00e0 quang h\u1ecdc \u0111\u01b0\u1ee3c gia c\u1ed1 nh\u1eb1m t\u0103ng \u0111\u1ed9 tin c\u1eady<\/p><\/li>\n\n\n\n<li><p>Chi ph\u00ed cao h\u01a1n do c\u1ea5u t\u1ea1o ch\u1eafc ch\u1eafn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP c\u00f4ng nghi\u1ec7p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ea1ng Ethernet c\u00f4ng nghi\u1ec7p<\/p><\/li>\n\n\n\n<li><p>Tri\u1ec3n khai c\u00e1p quang ngo\u00e0i tr\u1eddi<\/p><\/li>\n\n\n\n<li><p>M\u1ea1ng giao th\u00f4ng (\u0111\u01b0\u1eddng s\u1eaft, th\u00e0nh ph\u1ed1 th\u00f4ng minh)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c v\u1ecb tr\u00ed trung t\u00e2m d\u1eef li\u1ec7u kh\u1eafc nghi\u1ec7t c\u00f3 dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 l\u1edbn<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean ch\u1ecdn <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492104.htm\">SFP c\u00f4ng nghi\u1ec7p<\/a> M\u00f4-\u0111un<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ecdn c\u00e1c m\u00f4-\u0111un SFP c\u1ea5p c\u00f4ng nghi\u1ec7p n\u1ebfu <strong>b\u1ea5t k\u1ef3 \u0111i\u1ec1u ki\u1ec7n n\u00e0o sau \u0111\u00e2y x\u1ea3y ra<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>C\u00e1p quang \u0111\u01b0\u1ee3c tri\u1ec3n khai trong t\u1ee7 ngo\u00e0i tr\u1eddi, t\u1ee7 b\u00ean l\u1ec1 \u0111\u01b0\u1eddng ho\u1eb7c kh\u00f4ng gian kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9.<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng tr\u1ea3i qua <strong>nhi\u1ec7t \u0111\u1ed9 ngo\u00e0i d\u1ea3i 0\u201370\u00b0C<\/strong>.<\/p><\/li>\n\n\n\n<li><p>\u1ee8ng d\u1ee5ng y\u00eau c\u1ea7u <strong>\u0111\u1ed9 tin c\u1eady cao d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a rung \u0111\u1ed9ng ho\u1eb7c va \u0111\u1eadp<\/strong>, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u00ean s\u00e0n s\u1ea3n xu\u1ea5t ho\u1eb7c trong h\u1ec7 th\u1ed1ng giao th\u00f4ng.<\/p><\/li>\n\n\n\n<li><p>Tu\u1ed5i th\u1ecd d\u00e0i v\u00e0 b\u1ea3o tr\u00ec t\u1ed1i thi\u1ec3u l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t, \u0111\u1eb7c bi\u1ec7t t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m xa x\u00f4i ho\u1eb7c kh\u00f3 ti\u1ebfp c\u1eadn.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng trong nh\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u1edbi nhi\u1ec7t \u0111\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u ti\u00eau chu\u1ea9n, <strong>c\u00e1c m\u00f4-\u0111un SFP th\u01b0\u01a1ng m\u1ea1i l\u00e0 \u0111\u1ee7<\/strong> v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00f4i tr\u01b0\u1eddng ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o m\u1ea1ng c\u1ee7a b\u1ea1n duy tr\u00ec <strong>kh\u1ea3 n\u0103ng s\u1eb5n s\u00e0ng cao<\/strong> v\u00e0 tr\u00e1nh th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng b\u1ea5t ng\u1edd do l\u1ed7i m\u00f4-\u0111un.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, ch\u00fang ta s\u1ebd th\u1ea3o lu\u1eadn <strong>B\u01b0\u1edbc 7 \u2014 Quy\u1ebft \u0111\u1ecbnh xem b\u1ea1n c\u00f3 c\u1ea7n gi\u00e1m s\u00e1t DOM\/DDM hay kh\u00f4ng<\/strong>, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c b\u1ea3o tr\u00ec v\u00e0 x\u1eed s\u1ef1 c\u1ed1 m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 B\u01b0\u1edbc 7 \u2014 Quy\u1ebft \u0111\u1ecbnh xem b\u1ea1n c\u00f3 c\u1ea7n gi\u00e1m s\u00e1t DOM\/DDM hay kh\u00f4ng<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi b\u1ea1n \u0111\u00e3 x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9, lo\u1ea1i c\u00e1p quang, b\u01b0\u1edbc s\u00f3ng, kho\u1ea3ng c\u00e1ch v\u00e0 y\u00eau c\u1ea7u m\u00f4i tr\u01b0\u1eddng, y\u1ebfu t\u1ed1 cu\u1ed1i c\u00f9ng c\u1ea7n c\u00e2n nh\u1eafc l\u00e0 <strong>kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t<\/strong>. Nhi\u1ec1u m\u00f4-\u0111un SFP bao g\u1ed3m <strong>Gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1 (DOM)<\/strong> or <strong>Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (DDM)<\/strong>, cung c\u1ea5p th\u00f4ng tin th\u1eddi gian th\u1ef1c v\u1ec1 tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00f4-\u0111un. DOM l\u00e0 t\u00ednh n\u0103ng gi\u00e1 tr\u1ecb \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng c\u1ea7n hi\u1ec3u ch\u1ee7 \u0111\u1ed9ng v\u1ec1 t\u00ecnh tr\u1ea1ng v\u00e0 hi\u1ec7u su\u1ea5t li\u00ean k\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\/748a551b533642cb8e3266a19e6b0c8b.jpg\" alt=\"Step 7 \u2014 Decide If You Need DOM\/DDM Monitoring\" class=\"wp-image-3201\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/748a551b533642cb8e3266a19e6b0c8b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/748a551b533642cb8e3266a19e6b0c8b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/748a551b533642cb8e3266a19e6b0c8b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/748a551b533642cb8e3266a19e6b0c8b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/748a551b533642cb8e3266a19e6b0c8b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u00e1m s\u00e1t quang k\u1ef9 thu\u1eadt s\u1ed1 (DOM) l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\"><strong>Gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1<\/strong><\/a><strong> (DOM)<\/strong> l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n \u0111\u1ec3 gi\u00e1m s\u00e1t c\u00e1c th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh c\u1ee7a m\u00f4-\u0111un SFP. N\u00f3 cho ph\u00e9p b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ecdc c\u00e1c ch\u1ec9 s\u1ed1 m\u00f4-\u0111un th\u00f4ng qua giao di\u1ec7n I\u00b2C \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi MSA.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1ee3i \u00edch ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c c\u00e1c b\u1ed9 thu ph\u00e1t quang<\/p><\/li>\n\n\n\n<li><p>Ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c s\u1ef1 c\u1ed1 li\u00ean k\u1ebft ti\u1ec1m \u1ea9n<\/p><\/li>\n\n\n\n<li><p>N\u00e2ng cao \u0111\u1ed9 tin c\u1eady m\u1ea1ng v\u00e0 hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd s\u1ef1 c\u1ed1<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DOM kh\u00f4ng <strong>not<\/strong> thay th\u1ebf vi\u1ec7c ki\u1ec3m tra t\u01b0\u01a1ng th\u00edch ho\u1eb7c thi\u1ebft k\u1ebf m\u1ea1ng \u0111\u00fang c\u00e1ch; n\u00f3 b\u1ed5 sung cho ch\u00fang b\u1eb1ng c\u00e1ch cung c\u1ea5p d\u1eef li\u1ec7u v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c th\u00f4ng s\u1ed1 DOM theo d\u00f5i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP h\u1ed7 tr\u1ee3 DOM th\u01b0\u1eddng cung c\u1ea5p c\u00e1c ch\u1ec9 s\u1ed1 sau:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Tham s\u1ed1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t quang ph\u00e1t (Tx)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a laser theo th\u1eddi gian th\u1ef1c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t quang nh\u1eadn (Rx)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t quang nh\u1eadn t\u1eeb \u0111\u1ea7u kia<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec7t \u0111\u1ed9 module<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhi\u1ec7t \u0111\u1ed9 b\u00ean trong module t\u00ednh theo \u00b0C<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110i\u1ec7n \u00e1p c\u1ea5p ngu\u1ed3n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ee9c \u0111i\u1ec7n \u00e1p c\u1ea5p cho module<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>D\u00f2ng thi\u00ean \u00e1p laser<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>D\u00f2ng \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n laser, cho bi\u1ebft t\u00ecnh tr\u1ea1ng l\u00e3o h\u00f3a ho\u1eb7c suy gi\u1ea3m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch th\u1ee9c h\u1ed7 tr\u1ee3 n\u00e0y ho\u1ea1t \u0111\u1ed9ng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1ef1 s\u1ee5t gi\u1ea3m \u0111\u1ed9t ng\u1ed9t c\u1ee7a c\u00f4ng su\u1ea5t Rx c\u00f3 th\u1ec3 cho th\u1ea5y c\u00e1p quang b\u1ecb h\u01b0 h\u1ecfng ho\u1eb7c \u0111\u1ea7u n\u1ed1i b\u1ecb b\u1ea9n<\/p><\/li>\n\n\n\n<li><p>Ch\u1ec9 s\u1ed1 nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 b\u00e1o hi\u1ec7u l\u00e0m m\u00e1t kh\u00f4ng \u0111\u1ee7 ho\u1eb7c c\u0103ng th\u1eb3ng m\u00f4i tr\u01b0\u1eddng<\/p><\/li>\n\n\n\n<li><p>Dao \u0111\u1ed9ng \u0111i\u1ec7n \u00e1p c\u00f3 th\u1ec3 cho th\u1ea5y v\u1ea5n \u0111\u1ec1 v\u1ec1 ngu\u1ed3n c\u1ea5p \u0111i\u1ec7n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/network-management-system-nms-monitoring-control-security\/\">H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd m\u1ea1ng<\/a> (NMS) c\u00f3 th\u1ec3 ghi l\u1ea1i c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y, k\u00edch ho\u1ea1t c\u1ea3nh b\u00e1o v\u00e0 t\u1ea1o b\u00e1o c\u00e1o nh\u1eb1m ng\u0103n ng\u1eeba gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o DOM b\u1eaft bu\u1ed9c trong m\u1ea1ng doanh nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DOM \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 \u0111\u1ed9 tin c\u1eady, th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-data-center\/\" target=\"_blank\" rel=\"\"><strong>Trung t\u00e2m d\u1eef li\u1ec7u<\/strong><\/a><strong>:<\/strong> Gi\u00e1m s\u00e1t c\u00e1c li\u00ean k\u1ebft m\u1eadt \u0111\u1ed9 cao, t\u1ed1c \u0111\u1ed9 cao, n\u01a1i s\u1ef1 c\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec1u m\u00e1y ch\u1ee7.<\/p><\/li>\n\n\n\n<li><p><strong>M\u1ea1ng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5:<\/strong> Theo d\u00f5i c\u00e1c li\u00ean k\u1ebft quang kho\u1ea3ng c\u00e1ch xa \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o th\u1ecfa m\u00e3n c\u00e1c th\u1ecfa thu\u1eadn m\u1ee9c \u0111\u1ed9 d\u1ecbch v\u1ee5 (SLA).<\/p><\/li>\n\n\n\n<li><p><strong>Tri\u1ec3n khai c\u00f4ng nghi\u1ec7p:<\/strong> Nh\u1eadn di\u1ec7n s\u1edbm c\u00e1c d\u1ea5u hi\u1ec7u c\u0103ng th\u1eb3ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c \u0111\u1ecba \u0111i\u1ec3m t\u1eeb xa ho\u1eb7c kh\u00f3 ti\u1ebfp c\u1eadn:<\/strong> Cho ph\u00e9p gi\u00e1m s\u00e1t m\u00e0 kh\u00f4ng c\u1ea7n ki\u1ec3m tra th\u1ef1c t\u1ebf.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u01b0\u1edbng d\u1eabn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed1i v\u1edbi c\u00e1c li\u00ean k\u1ebft doanh nghi\u1ec7p ng\u1eafn, c\u1ef1 ly ng\u1eafn, DOM c\u00f3 th\u1ec3 kh\u00f4ng b\u1eaft bu\u1ed9c.<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed1i v\u1edbi c\u00e1c tri\u1ec3n khai t\u1ed1c \u0111\u1ed9 cao, kho\u1ea3ng c\u00e1ch xa ho\u1eb7c mang t\u00ednh s\u1ed1ng c\u00f2n, DOM \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb m\u1ea1nh m\u1ebd.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, ch\u00fang ta s\u1ebd tr\u00ecnh b\u00e0y <strong>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p khi l\u1ef1a ch\u1ecdn module SFP<\/strong>, gi\u1ea3i \u0111\u00e1p c\u00e1c th\u1eafc m\u1eafc ph\u1ed5 bi\u1ebfn v\u00e0 ph\u1ea3n \u00e1nh \u00fd \u0111\u1ecbnh t\u00ecm ki\u1ebfm PAA (People Also Ask) nh\u1eb1m c\u1ea3i thi\u1ec7n SEO v\u00e0 kh\u1ea3 n\u0103ng tr\u00edch d\u1eabn b\u1edfi AI.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p khi l\u1ef1a ch\u1ecdn module SFP<\/strong><\/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\/c806f4a1be69472d98a9dc1a77d279c0.jpg\" alt=\"FAQs About Choosing SFP Modules\" class=\"wp-image-3202\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c806f4a1be69472d98a9dc1a77d279c0.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c806f4a1be69472d98a9dc1a77d279c0-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c806f4a1be69472d98a9dc1a77d279c0-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c806f4a1be69472d98a9dc1a77d279c0-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c806f4a1be69472d98a9dc1a77d279c0-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea5t k\u1ef3 module SFP n\u00e0o kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng. M\u1eb7c d\u00f9 c\u00e1c module SFP tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 giao di\u1ec7n \u0111i\u1ec7n\/t\u1ed1i, <strong>kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c module \u0111\u1ec1u t\u01b0\u01a1ng th\u00edch ph\u1ed5 qu\u00e1t<\/strong>. C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng bao g\u1ed3m:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p (kh\u00f3a firmware tr\u00ean m\u1ed9t s\u1ed1 switch nh\u1ea5t \u0111\u1ecbnh)<br><\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 (1G, 10G, 25G)<br><\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i s\u1ee3i quang (SMF so v\u1edbi MMF) v\u00e0 b\u01b0\u1edbc s\u00f3ng<br><\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch v\u00e0 ng\u00e2n s\u00e1ch quang h\u1ecdc<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n ki\u1ec3m tra switch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n<br> <strong>ma tr\u1eadn t\u01b0\u01a1ng th\u00edch c\u1ee7a thi\u1ebft b\u1ecb<\/strong> v\u00e0 x\u00e1c minh t\u1ed1c \u0111\u1ed9, lo\u1ea1i s\u1ee3i quang c\u0169ng nh\u01b0 y\u00eau c\u1ea7u m\u00f4i tr\u01b0\u1eddng tr\u01b0\u1edbc khi tri\u1ec3n khai.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft SFP c\u00f3 t\u01b0\u01a1ng th\u00edch hay kh\u00f4ng?<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1eb1ng:<br><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft v\u00e0 ho\u1ea1t \u0111\u1ed9ng giao di\u1ec7n <strong>b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a switch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<br><\/strong> v\u1ec1 c\u00e1c module SFP \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<br>.<\/p><\/li>\n\n\n\n<li><p>X\u00e1c nh\u1eadn lo\u1ea1i khe c\u1eafm<br> <strong>y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng<\/strong> (SFP \/ SFP+ \/ SFP28).<br>.<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra<br> <strong>m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p<br><\/strong> n\u1ebfu switch \u00e1p d\u1ee5ng b\u1eaft bu\u1ed9c n\u00e0y.<br>.<\/p><\/li>\n\n\n\n<li><p>Ph\u00f9 h\u1ee3p v\u1edbi<br> <strong>ti\u00eau chu\u1ea9n Ethernet, t\u1ed1c \u0111\u1ed9 v\u00e0 lo\u1ea1i s\u1ee3i quang<br><\/strong>.<\/p><\/li>\n\n\n\n<li><p>Tham kh\u1ea3o<br> <strong>c\u00e1c l\u1ec7nh CLI c\u1ee7a firmware ho\u1eb7c ph\u1ea7n m\u1ec1m<br><\/strong> \u0111\u1ec3 ph\u00e1t hi\u1ec7n vi\u1ec7c nh\u1eadn di\u1ec7n module.<br>.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c x\u00e1c minh \u0111\u00fang c\u00e1ch ng\u0103n ch\u1eb7n c\u00e1c c\u1ed5ng \u1edf tr\u1ea1ng th\u00e1i kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng do s\u1eed d\u1ee5ng b\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00f3 th\u1ec3 tr\u1ed9n c\u00e1c th\u01b0\u01a1ng hi\u1ec7u SFP kh\u00e1c nhau kh\u00f4ng?<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, nh\u01b0ng v\u1edbi \u0111i\u1ec1u ki\u1ec7n:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1ea3 hai module \u0111\u1ec1u ph\u1ea3i tu\u00e2n th\u1ee7 c\u00f9ng m\u1ed9t<br> <strong>ti\u00eau chu\u1ea9n Ethernet<br><\/strong> (v\u00ed d\u1ee5: 10GBASE-LR \u2194 10GBASE-LR).<br>.<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng ph\u1ea3i kh\u1edbp nhau.<br>.<\/p><\/li>\n\n\n\n<li><p>C\u1ea3 hai \u0111\u1ea7u ph\u1ea3i n\u1eb1m trong<br> <strong>ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t v\u00e0 ph\u1ea1m vi kho\u1ea3ng c\u00e1ch c\u1ee7a module<br><\/strong>.<\/p><\/li>\n\n\n\n<li><p>C\u00e1c module \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a b\u1edfi nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 y\u00eau c\u1ea7u l\u1eadp tr\u00ecnh EEPROM \u0111\u1ec3 \u0111\u01b0\u1ee3c firmware nh\u1eadn di\u1ec7n.<br>.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tr\u1ed9n c\u00e1c th\u01b0\u01a1ng hi\u1ec7u l\u00e0 ph\u1ed5 bi\u1ebfn trong trung t\u00e2m d\u1eef li\u1ec7u, nh\u01b0ng lu\u00f4n ki\u1ec3m tra t\u00e0i li\u1ec7u m\u1ea1ng v\u00e0 th\u1eed nghi\u1ec7m tr\u01b0\u1edbc khi tri\u1ec3n khai.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f4i c\u1ea7n module SFP n\u00e0o?<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn module SFP ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u th\u00f4ng s\u1ed1:<br><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>T\u00ednh t\u01b0\u01a1ng th\u00edch:<\/strong> Tu\u00e2n th\u1ee7 nh\u00e0 cung c\u1ea5p v\u00e0 ti\u00eau chu\u1ea9n MSA<br><\/p><\/li>\n\n\n\n<li><p><strong>T\u1ed1c \u0111\u1ed9:<\/strong> 1G (SFP), 10G (SFP+), 25G (SFP28)<\/p><\/li>\n\n\n\n<li><p><strong>Lo\u1ea1i c\u00e1p quang:<\/strong> \u0110\u01a1n ch\u1ebf \u0111\u1ed9 (SMF) ho\u1eb7c \u0111a ch\u1ebf \u0111\u1ed9 (MMF)<\/p><\/li>\n\n\n\n<li><p><strong>B\u01b0\u1edbc s\u00f3ng:<\/strong> 850 nm, 1310 nm, 1550 nm<\/p><\/li>\n\n\n\n<li><p><strong>Kho\u1ea3ng c\u00e1ch:<\/strong> SR (ng\u1eafn), LR (d\u00e0i), ER\/ZR (m\u1edf r\u1ed9ng)<\/p><\/li>\n\n\n\n<li><p><strong>M\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng:<\/strong> Th\u01b0\u01a1ng m\u1ea1i (0\u201370\u00b0C) ho\u1eb7c C\u00f4ng nghi\u1ec7p (\u221240\u201385\u00b0C)<\/p><\/li>\n\n\n\n<li><p><strong>Gi\u00e1m s\u00e1t DOM\/DDM:<\/strong> T\u00f9y ch\u1ecdn nh\u01b0ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho c\u00e1c li\u00ean k\u1ebft quan tr\u1ecdng.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch \u0111\u00e1nh gi\u00e1 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh module SFP ph\u00f9 h\u1ee3p nh\u1ea5t cho li\u00ean k\u1ebft m\u1ea1ng c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP \u0111\u1ed3ng v\u00e0 SFP quang l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP \u0111\u1ed3ng (d\u1ef1a tr\u00ean RJ45):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng c\u00e1p Ethernet xo\u1eafn \u0111\u00f4i (Cat5e\/Cat6\/Cat6a).<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n \u1edf <strong>100 m\u00e9t<\/strong> cho c\u00e1c li\u00ean k\u1ebft 1G ho\u1eb7c 10G.<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u1ec5 v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao h\u01a1n \u0111\u1ed1i v\u1edbi 10GBASE-T.<\/p><\/li>\n\n\n\n<li><p>Chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p h\u01a1n v\u00e0 d\u1ec5 l\u1eafp \u0111\u1eb7t h\u01a1n trong c\u00e1c m\u1ea1ng v\u0103n ph\u00f2ng kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP quang (d\u1ef1a tr\u00ean s\u1ee3i quang):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng c\u00e1p s\u1ee3i quang (MMF ho\u1eb7c SMF).<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 <strong>h\u00e0ng tr\u0103m m\u00e9t \u0111\u1ebfn v\u00e0i ch\u1ee5c kil\u00f4m\u00e9t<\/strong>.<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n, kho\u1ea3ng c\u00e1ch xa h\u01a1n v\u00e0 ti\u1ec1m n\u0103ng b\u0103ng th\u00f4ng cao h\u01a1n.<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c \u01b0u ti\u00ean s\u1eed d\u1ee5ng trong trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng khu\u00f4n vi\u00ean v\u00e0 li\u00ean k\u1ebft nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u1ed5ng SFP c\u00f3 h\u1ed7 tr\u1ee3 c\u1ea3 1G v\u00e0 10G kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o <strong>lo\u1ea1i c\u1ed5ng v\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u1ed5ng SFP:<\/strong> Th\u00f4ng th\u01b0\u1eddng ch\u1ec9 h\u1ed7 tr\u1ee3 1G.<\/p><\/li>\n\n\n\n<li><p><strong>C\u1ed5ng SFP+:<\/strong> Ch\u1ee7 y\u1ebfu h\u1ed7 tr\u1ee3 10G, nh\u01b0ng nhi\u1ec1u c\u1ed5ng h\u1ed7 tr\u1ee3 <strong>tr\u1edf v\u1ec1 1G<\/strong>.<\/p><\/li>\n\n\n\n<li><p><strong>C\u1ed5ng SFP28:<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho 25G, c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 10G tr\u00ean m\u1ed9t s\u1ed1 ph\u1ea7n c\u1ee9ng nh\u1ea5t \u0111\u1ecbnh.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n ki\u1ec3m tra b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ec3 x\u00e1c nh\u1eadn <strong>kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1c \u0111\u1ed9 v\u00e0 h\u1ed7 tr\u1ee3 tr\u1edf v\u1ec1<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u25b6 Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng \u2014 L\u1ef1a ch\u1ecdn module SFP ph\u00f9 h\u1ee3p cho m\u1ea1ng n\u0103m 2026<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn module SFP \u0111\u00fang y\u00eau c\u1ea7u m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 c\u1ea5u tr\u00fac, xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 <strong>t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9, lo\u1ea1i s\u1ee3i quang, b\u01b0\u1edbc s\u00f3ng, kho\u1ea3ng c\u00e1ch, m\u00f4i tr\u01b0\u1eddng v\u00e0 kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t<\/strong>. M\u1ea1ng n\u0103m 2026 \u0111\u00f2i h\u1ecfi b\u0103ng th\u00f4ng cao h\u01a1n, kho\u1ea3ng c\u00e1ch xa h\u01a1n v\u00e0 \u0111\u1ed9 tin c\u1eady cao h\u01a1n, khi\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ea9n th\u1eadn module SFP tr\u1edf n\u00ean thi\u1ebft y\u1ebfu cho tri\u1ec3n khai doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n theo khu\u00f4n kh\u1ed5 b\u1ea3y b\u01b0\u1edbc n\u00eau trong h\u01b0\u1edbng d\u1eabn n\u00e0y, k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u1ea7y \u0111\u1ee7 v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/p><\/li>\n\n\n\n<li><p>Ph\u00f9 h\u1ee3p t\u1ed1c \u0111\u1ed9 module v\u1edbi thi\u1ebft k\u1ebf m\u1ea1ng (1G, 10G, 25G)<\/p><\/li>\n\n\n\n<li><p>Ch\u1ecdn \u0111\u00fang lo\u1ea1i s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch<\/p><\/li>\n\n\n\n<li><p>T\u00ednh \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng<\/p><\/li>\n\n\n\n<li><p>Quy\u1ebft \u0111\u1ecbnh xem vi\u1ec7c gi\u00e1m s\u00e1t DOM\/DDM c\u00f3 c\u1ea7n thi\u1ebft hay kh\u00f4ng \u0111\u1ec3 qu\u1ea3n l\u00fd m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1eadp k\u1ebf ho\u1ea1ch \u0111\u00fang c\u00e1ch gi\u00fap tr\u00e1nh c\u00e1c sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u01b0: lo\u1ea1i s\u1ee3i quang kh\u00f4ng ph\u00f9 h\u1ee3p, module m\u00e3 h\u00f3a theo nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, b\u01b0\u1edbc s\u00f3ng sai ho\u1eb7c ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t kh\u00f4ng \u0111\u1ee7.<\/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\/a7357a45573947daa3b5e1ff44aef10a.jpg\" alt=\"Choosing the Right SFP Module for 2026 Networks\" class=\"wp-image-3203\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7357a45573947daa3b5e1ff44aef10a.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7357a45573947daa3b5e1ff44aef10a-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7357a45573947daa3b5e1ff44aef10a-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7357a45573947daa3b5e1ff44aef10a-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a7357a45573947daa3b5e1ff44aef10a-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi l\u1ef1a ch\u1ecdn SFP c\u1ea7n tr\u00e1nh<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>B\u1ecf qua t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t:<\/strong> S\u1eed d\u1ee5ng m\u1ed9t module <a href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\" target=\"_self\">B\u1ed9 thu ph\u00e1t SFP<\/a> kh\u00f4ng \u0111\u01b0\u1ee3c ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch nh\u1eadn di\u1ec7n.<\/p><\/li>\n\n\n\n<li><p><strong>Ch\u1ecdn sai t\u1ed1c \u0111\u1ed9:<\/strong> L\u1eafp module SFP+ 10G v\u00e0o c\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 1G ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i.<\/p><\/li>\n\n\n\n<li><p><strong>Kh\u00f4ng kh\u1edbp lo\u1ea1i s\u1ee3i quang ho\u1eb7c b\u01b0\u1edbc s\u00f3ng:<\/strong> Tr\u1ed9n l\u1eabn s\u1ee3i \u0111\u01a1n ch\u1ebf \u0111\u1ed9 v\u00e0 \u0111a ch\u1ebf \u0111\u1ed9 ho\u1eb7c s\u1eed d\u1ee5ng sai b\u01b0\u1edbc s\u00f3ng.<\/p><\/li>\n\n\n\n<li><p><strong>\u0110\u00e1nh gi\u00e1 th\u1ea5p kho\u1ea3ng c\u00e1ch:<\/strong> Kh\u00f4ng t\u00ednh to\u00e1n t\u1ed5ng t\u1ed5n hao li\u00ean k\u1ebft, m\u1ed1i n\u1ed1i v\u00e0 suy hao t\u1ea1i \u0111\u1ea7u n\u1ed1i.<\/p><\/li>\n\n\n\n<li><p><strong>B\u1ecf qua y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng:<\/strong> S\u1eed d\u1ee5ng module SFP th\u01b0\u01a1ng m\u1ea1i trong c\u00e1c tri\u1ec3n khai c\u00f4ng nghi\u1ec7p ho\u1eb7c ngo\u00e0i tr\u1eddi.<\/p><\/li>\n\n\n\n<li><p><strong>B\u1ecf qua gi\u00e1m s\u00e1t DOM\/DDM:<\/strong> B\u1ecf l\u1ee1 c\u00e1c d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o s\u1edbm v\u1ec1 suy gi\u1ea3m module ho\u1eb7c s\u1ef1 c\u1ed1 li\u00ean k\u1ebft.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00e1nh nh\u1eefng sai l\u1ea7m n\u00e0y \u0111\u1ea3m b\u1ea3o <strong>c\u00e1c li\u00ean k\u1ebft quang \u1ed5n \u0111\u1ecbnh, hi\u1ec7u su\u1ea5t cao<\/strong> \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u1ee7a m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ec3 mua c\u00e1c module SFP ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e1ng tin c\u1eady v\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1ea1ng doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u00f4ng nghi\u1ec7p, h\u00e3y truy c\u1eadp trang <\/strong><a target=\"_new\" rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a><strong>.<\/strong><\/p>\n\n\n\n<div><div widgetid=\"3ef779ac451211f099380a58fbc66727\" format=\"embedded\" data-widget-id=\"3ef779ac451211f099380a58fbc66727\" data-mode=\"production.zh\" style=\"display: block;\"><\/div><\/div>\n\n\n\n<script src=\"https:\/\/cdn.mylandingpages.co\/widgets\/platform\/platform.widget.js\" async=\"true\"><\/script>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u c\u00e1ch ch\u1ecdn m\u00f4-\u0111un SFP ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean t\u00ednh t\u01b0\u01a1ng th\u00edch, t\u1ed1c \u0111\u1ed9, lo\u1ea1i c\u00e1p quang, b\u01b0\u1edbc s\u00f3ng v\u00e0 kho\u1ea3ng c\u00e1ch. H\u01b0\u1edbng d\u1eabn th\u1ef1c ti\u1ec5n d\u00e0nh cho k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi mua IT.<\/p>","protected":false},"author":1,"featured_media":3205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-3207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3207","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=3207"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3207\/revisions"}],"predecessor-version":[{"id":10765,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3207\/revisions\/10765"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3205"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}