{"id":5404,"date":"2025-08-18T00:00:00","date_gmt":"2025-08-18T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/100g-cwdm4-transceiver-efficient-2km-links\/"},"modified":"2026-06-22T08:20:53","modified_gmt":"2026-06-22T08:20:53","slug":"100g-cwdm4-transceiver-efficient-2km-links","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/100g-cwdm4-transceiver-efficient-2km-links","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 b\u1ed9 thu ph\u00e1t quang CWDM4 100G: \u0110\u1ea9y m\u1ea1nh c\u00e1c k\u1ebft n\u1ed1i hi\u1ec7u qu\u1ea3 trong kho\u1ea3ng c\u00e1ch 2 km"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/399a4813f35e44f1b8d94329c2d95052.webp\" alt=\"100G CWDM4 Transceiver\" class=\"wp-image-5402\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/399a4813f35e44f1b8d94329c2d95052.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/399a4813f35e44f1b8d94329c2d95052-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/399a4813f35e44f1b8d94329c2d95052-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/399a4813f35e44f1b8d94329c2d95052-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/399a4813f35e44f1b8d94329c2d95052-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472577.htm\"><strong>B\u1ed9 thu ph\u00e1t quang 100G CWDM4<\/strong><\/a> l\u00e0 gi\u1ea3i ph\u00e1p ti\u00eau chu\u1ea9n ng\u00e0nh cho c\u00e1c k\u1ebft n\u1ed1i Ethernet 100 Gigabit hi\u1ec7u su\u1ea5t cao v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed tr\u00ean kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 2 km. S\u1eed d\u1ee5ng <strong>Ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng th\u00f4 <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-cwdm-understanding-coarse-wavelength-division-multiplexing\/\"><strong>(CWDM)<\/strong><\/a> c\u00f4ng ngh\u1ec7 tr\u00ean s\u1ee3i \u0111\u00f4i <strong>s\u1ee3i quang \u0111\u01a1n mode <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-single-mode-fiber-and-how-does-it-work\/\"><strong>(SMF)<br><\/strong><\/a>, ch\u00fang mang l\u1ea1i nh\u1eefng l\u1ee3i th\u1ebf \u0111\u00e1ng k\u1ec3 trong li\u00ean k\u1ebft trung t\u00e2m d\u1eef li\u1ec7u (DCI), m\u1ea1ng doanh nghi\u1ec7p v\u00e0 m\u1ea1ng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5. H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111i s\u00e2u v\u00e0o c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, c\u00e1c l\u1ee3i \u00edch ch\u00ednh v\u00e0 l\u00fd do vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u \u0111\u00e1ng tin c\u1eady nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quang h\u1ecdc c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhu c\u1ea7u b\u0103ng th\u00f4ng kh\u00f4ng ng\u1eebng gia t\u0103ng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng hi\u1ec7n \u0111\u1ea1i \u0111\u00f2i h\u1ecfi c\u00e1c gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i m\u1ea1nh m\u1ebd, c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed. \u0110\u00f3 l\u00e0 l\u00fac xu\u1ea5t hi\u1ec7n <strong>m\u00f4-\u0111un thu ph\u00e1t quang 100G CWDM4 (100G QSFP28 CWDM4)<\/strong> \u2014 m\u1ed9t c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng cho c\u00e1c li\u00ean k\u1ebft 100Gbps tr\u00ean kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 2 km. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u l\u00fd do v\u00ec sao n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn \u0111\u1ebfn v\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 T\u00ecm hi\u1ec3u c\u00f4ng ngh\u1ec7 100G CWDM4<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p quang h\u1ecdc song song y\u00eau c\u1ea7u nhi\u1ec1u s\u1ee3i c\u00e1p (v\u00ed d\u1ee5: SR4), <strong>CWDM4<\/strong> t\u1eadn d\u1ee5ng <strong>gh\u00e9p k\u00eanh ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/cwdm-vs-dwdm-vs-mwdm-vs-lwdm-vs-swdm-differences\/\"><strong>(WDM)<\/strong><\/a>. N\u00f3 k\u1ebft h\u1ee3p b\u1ed1n k\u00eanh quang ri\u00eang bi\u1ec7t t\u1ed1c \u0111\u1ed9 25Gbps ch\u1ec9 tr\u00ean hai s\u1ee3i c\u00e1p quang \u0111\u01a1n mode (m\u1ed9t s\u1ee3i cho truy\u1ec1n, m\u1ed9t s\u1ee3i cho nh\u1eadn). Vi\u1ec7c n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u1ed1n b\u01b0\u1edbc s\u00f3ng CWDM trong d\u1ea3i O-band:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>K\u00eanh 1:<\/strong> 1271 nm<\/p><\/li><li><p style=\"margin: 0px;\"><strong>K\u00eanh 2:<\/strong> 1291 nm<\/p><\/li><li><p style=\"margin: 0px;\"><strong>K\u00eanh 3:<\/strong> 1311 nm<\/p><\/li><li><p style=\"margin: 0px;\"><strong>K\u00eanh 4:<\/strong> 1331 nm<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>b\u1ed9 gh\u00e9p k\u00eanh (Mux)<\/strong> k\u1ebft h\u1ee3p c\u00e1c t\u00edn hi\u1ec7u n\u00e0y \u1edf \u0111\u1ea7u ph\u00e1t, v\u00e0 m\u1ed9t <strong>t\u00e1ch k\u00eanh (Demux)<br><\/strong> t\u00e1ch ch\u00fang ra \u1edf \u0111\u1ea7u thu. Vi\u1ec7c s\u1eed d\u1ee5ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u01b0 v\u1eady gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 chi ph\u00ed \u0111i d\u00e2y so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p d\u00f9ng nhi\u1ec1u s\u1ee3i, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a m\u00f4-\u0111un 100G CWDM4<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u (DCI):<\/strong> K\u1ebft n\u1ed1i m\u00e1y ch\u1ee7, b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ea7u t\u1ee7 (ToR), v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1eadp trung trong v\u00e0 gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 ho\u1eb7c khu\u00f4n vi\u00ean trung t\u00e2m d\u1eef li\u1ec7u (trong ph\u1ea1m vi 2 km).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>M\u1ea1ng l\u00f5i doanh nghi\u1ec7p:<\/strong> C\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch l\u00f5i v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn trong m\u1ea1ng doanh nghi\u1ec7p quy m\u00f4 l\u1edbn.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>M\u1ea1ng vi\u1ec5n th\u00f4ng &amp; nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5:<\/strong> Cung c\u1ea5p giao di\u1ec7n kh\u00e1ch h\u00e0ng 100G cho c\u00e1c \u1ee9ng d\u1ee5ng truy c\u1eadp \u0111\u00f4 th\u1ecb v\u00e0 bi\u00ean m\u1ea1ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u1ea2o h\u00f3a ch\u1ee9c n\u0103ng m\u1ea1ng (NFV) &amp; M\u1ea1ng khu v\u1ef1c l\u01b0u tr\u1eef (SAN):<\/strong> H\u1ed7 tr\u1ee3 c\u00e1c d\u1ecbch v\u1ee5 \u1ea3o h\u00f3a v\u00e0 k\u1ebft n\u1ed1i l\u01b0u tr\u1eef c\u00f3 b\u0103ng th\u00f4ng cao.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 Nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt khi ch\u1ecdn b\u1ed9 thu ph\u00e1t 100G CWDM4<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed (Capex &amp; Opex):<\/strong> Gi\u1ea3m s\u1ed1 s\u1ee3i c\u00e1p quang xu\u1ed1ng 75% so v\u1edbi SR4 (8 s\u1ee3i so v\u1edbi 2 s\u1ee3i), t\u1eeb \u0111\u00f3 gi\u1ea3m chi ph\u00ed c\u00e1p, s\u1ed1 c\u1ed5ng tr\u00ean b\u1ea3ng \u0111\u1ea5u n\u1ed1i (patch panel) v\u00e0 g\u00e1nh n\u1eb7ng qu\u1ea3n l\u00fd. M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n th\u1ea5p h\u01a1n m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p thay th\u1ebf c\u0169ng gi\u00fap gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh (OpEx).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Qu\u1ea3n l\u00fd s\u1ee3i quang \u0111\u01a1n gi\u1ea3n h\u00f3a:<\/strong> \u0110\u1ea7u n\u1ed1i LC duplex nh\u1ecf g\u1ecdn h\u01a1n, d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n v\u00e0 chi\u1ebfm \u00edt kh\u00f4ng gian h\u01a1n so v\u1edbi \u0111\u1ea7u n\u1ed1i MPO \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong quang h\u1ecdc song song. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f3 m\u1eadt \u0111\u1ed9 cao.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u01b0\u01a1ng th\u00edch chu\u1ea9n h\u00f3a:<\/strong> CWDM4 <a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\"><strong>MSA<\/strong><\/a><strong> (Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n)<\/strong> \u0111\u1ea3m b\u1ea3o c\u00e1c module t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p kh\u00e1c nhau (nh\u01b0 <strong>LINK-PP<\/strong>, Finisar, Intel, v.v.) ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng th\u00edch ho\u00e0n to\u00e0n khi k\u1ebft n\u1ed1i v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb Mux\/Demux tu\u00e2n th\u1ee7 chu\u1ea9n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u1ed9 tin c\u1eady &amp; hi\u1ec7u n\u0103ng \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng:<\/strong> L\u00e0 c\u00f4ng ngh\u1ec7 tr\u01b0\u1edfng th\u00e0nh, cung c\u1ea5p k\u1ebft n\u1ed1i 100G \u1ed5n \u0111\u1ecbnh, hi\u1ec7u n\u0103ng cao l\u00ean t\u1edbi 2 km v\u1edbi \u0111\u1ed9 tr\u1ec5 <strong>t\u1ef7 l\u1ec7 l\u1ed7i bit<br> <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>(BER)<\/strong><\/a>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> H\u1ed7 tr\u1ee3 vi\u1ec7c n\u00e2ng c\u1ea5p v\u00e0 m\u1edf r\u1ed9ng m\u1ea1ng d\u1ec5 d\u00e0ng h\u01a1n nh\u1edd c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang \u0111\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n h\u00f3a.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 So s\u00e1nh CWDM4 v\u00e0 PSM4: L\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p 100G cho kho\u1ea3ng c\u00e1ch 2 km ph\u00f9 h\u1ee3p<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both <strong>CWDM4 v\u00e0 PSM4<\/strong> \u0111\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn th\u1ecb tr\u01b0\u1eddng c\u00e1p quang \u0111\u01a1n mode (SMF) duplex 100G \u1edf kho\u1ea3ng c\u00e1ch 2 km. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh nhanh:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1eb7c t\u00ednh<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>100G CWDM4 (QSFP28)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>100G PSM4 (QSFP28)<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u00f4ng ngh\u1ec7<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>CWDM (4 b\u01b0\u1edbc s\u00f3ng)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01a1n mode song song (4 b\u01b0\u1edbc s\u00f3ng gi\u1ed1ng nhau ~1310 nm)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i s\u1ee3i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>SMF (2 s\u1ee3i)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>SMF (4 s\u1ee3i)<\/strong> (Y\u00eau c\u1ea7u \u0111\u1ea7u n\u1ed1i MPO-12)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>B\u01b0\u1edbc s\u00f3ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1271, 1291, 1311, 1331 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4\u00d7 ~1310 nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ed1 s\u1ee3i c\u00e1p t\u1ed1i thi\u1ec3u (2 s\u1ee3i)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Quang h\u1ecdc \u0111\u01a1n gi\u1ea3n h\u01a1n (kh\u00f4ng c\u1ea7n b\u1ed9 Mux\/Demux WDM <em>t\u1ea1i hai \u0111\u1ea7u<\/em>)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u00ednh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Y\u00eau c\u1ea7u b\u1ed9 Mux\/Demux WDM trong \u0111\u01b0\u1eddng truy\u1ec1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ed1 s\u1ee3i c\u00e1p cao h\u01a1n (4 s\u1ee3i)<\/strong><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng c\u00e1p quang<\/strong>, li\u00ean k\u1ebft trung t\u00e2m d\u1eef li\u1ec7u (DCI), x\u00e2y d\u1ef1ng m\u1edbi<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c \u0111o\u1ea1n c\u00e1p SMF ng\u1eafn n\u01a1i c\u00e1p d\u1ed3i d\u00e0o, li\u00ean k\u1ebft \u0111i\u1ec3m-\u0111i\u1ec3m tr\u1ef1c ti\u1ebfp kh\u00f4ng c\u1ea7n b\u1ed9 Mux\/Demux b\u00ean ngo\u00e0i<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u00ecn chung, CWDM4 \u0111\u01b0\u1ee3c \u01b0u ti\u00ean nh\u1edd kh\u1ea3 n\u0103ng ti\u1ebft ki\u1ec7m c\u00e1p v\u01b0\u1ee3t tr\u1ed9i,<\/strong> trong khi PSM4 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn cho c\u00e1c li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp, \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ecbnh\u2014khi vi\u1ec7c lo\u1ea1i b\u1ecf b\u1ed9 Mux\/Demux b\u00ean ngo\u00e0i l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u (d\u00f9 ph\u1ea3i s\u1eed d\u1ee5ng 4 s\u1ee3i c\u00e1p).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 V\u00ec sao ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch l\u1ea1i quan tr\u1ecdng: L\u1ee3i th\u1ebf c\u1ee7a LINK-PP<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a1e502803bbc4cd58da53b9188a63d44.webp\" alt=\"100G QSFP28 CWDM4 Transceiver\" class=\"wp-image-5403\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a1e502803bbc4cd58da53b9188a63d44.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a1e502803bbc4cd58da53b9188a63d44-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a1e502803bbc4cd58da53b9188a63d44-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a1e502803bbc4cd58da53b9188a63d44-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a1e502803bbc4cd58da53b9188a63d44-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 thu ph\u00e1t \u0111\u1ec1u nh\u01b0 nhau. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c module, <strong>tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA<\/strong> ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh, hi\u1ec7u n\u0103ng v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a m\u1ea1ng. <strong>LINK-PP<\/strong> s\u1ea3n xu\u1ea5t c\u00e1c module <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472577.htm\"><strong>100G QSFP28 CWDM4 \u0111\u00e3 qua ki\u1ec3m tra nghi\u00eam ng\u1eb7t<\/strong><\/a> \u0111\u1ea3m b\u1ea3o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>\u0110\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 ti\u00eau chu\u1ea9n MSA:<\/strong> \u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch tuy\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u switch\/router h\u00e0ng \u0111\u1ea7u (Cisco, Juniper, Arista, Mellanox\/NVIDIA, v.v.).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Hi\u1ec7u su\u1ea5t xu\u1ea5t s\u1eafc:<\/strong> Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p (&lt; 3,5 W \u0111i\u1ec3n h\u00ecnh), \u0111\u1ed9 nh\u1ea1y xu\u1ea5t s\u1eafc v\u00e0 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n IEEE 802.3bm \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t 100GBASE-LR4 \u0111\u00e1ng tin c\u1eady tr\u00ean c\u00e1p s\u1ee3i quang \u0111\u01a1n mode (SMF) l\u00ean \u0111\u1ebfn 2 km.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Stringent Quality Control:<\/strong> M\u1ed7i module \u0111\u1ec1u tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng v\u1ec1 c\u00f4ng su\u1ea5t quang, \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu v\u00e0 t\u1ef7 l\u1ec7 l\u1ed7i bit (BER).<\/p><\/li><li><p style=\"margin: 0px;\"><strong><p>The most significant benefit. Utilize existing fiber runs fully without costly new installations. Ideal for<\/p><\/strong> <strong>LINK-PP<\/strong> cung c\u1ea5p c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc \u0111\u1ed9 tin c\u1eady cao v\u1edbi gi\u00e1 c\u1ea1nh tranh, mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p thay th\u1ebf tuy\u1ec7t v\u1eddi cho c\u00e1c module OEM th\u01b0\u1eddng c\u00f3 gi\u00e1 qu\u00e1 cao m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H\u1ed7 tr\u1ee3 to\u00e0n di\u1ec7n:<\/strong> \u0110\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi chuy\u00ean gia k\u1ef9 thu\u1eadt v\u00e0 ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh \u0111\u00e1ng tin c\u1eady.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udca1 M\u1eb9o chuy\u00ean gia:<\/strong> \u0110\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch b\u1eb1ng c\u00e1ch ki\u1ec3m tra danh s\u00e1ch transceiver \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch\/b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n (th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ma tr\u1eadn t\u01b0\u01a1ng th\u00edch MSA ho\u1eb7c Optics). <strong>LINK-PP<\/strong> cung c\u1ea5p th\u00f4ng tin t\u01b0\u01a1ng th\u00edch cho c\u00e1c module c\u1ee7a m\u00ecnh, v\u00ed d\u1ee5 nh\u01b0 <strong>LINK-PP <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/472577.htm\"><strong>LQ-CW100-FR4C<\/strong><\/a> m\u00f4 h\u00ecnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1eb5n s\u00e0ng \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c k\u1ebft n\u1ed1i 100G c\u1ee7a b\u1ea1n trong ph\u1ea1m vi 2 km?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>B\u1ed9 thu ph\u00e1t quang 100G CWDM4<\/strong> v\u1eabn l\u00e0 gi\u1ea3i ph\u00e1p th\u1ed1ng tr\u1ecb v\u00e0 c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3 cho k\u1ebft n\u1ed1i Ethernet 100 Gigabit trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 l\u00ean \u0111\u1ebfn 2 km. S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a <strong>hi\u1ec7u su\u1ea5t, hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng s\u1ee3i quang, ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 ti\u00eau chu\u1ea9n h\u00f3a<\/strong> khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn v\u00f4 c\u00f9ng h\u1ea5p d\u1eabn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed1i \u01b0u h\u00f3a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng c\u1ee7a b\u1ea1n ngay h\u00f4m nay! Kh\u00e1m ph\u00e1 lo\u1ea1t b\u1ed9 thu ph\u00e1t quang 100G CWDM4 ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch c\u1ee7a LINK-PP, bao g\u1ed3m m\u00f4-\u0111un LQ-CW100-FR4C \u0111\u00e1ng tin c\u1eady. <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udc49\ud83c\udffb <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/file\/datasheet\/lq-cw100-fr4c.pdf\"><strong>B\u1ea3ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt (PDF)<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udc49\ud83c\udffb <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/message-472577.htm\"><strong>Y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>H: Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a c\u1ee7a 100G CWDM4 l\u00e0 bao nhi\u00eau?<\/strong><br\/><strong>A:<\/strong> Ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh ho\u1ea1t \u0111\u1ed9ng l\u00ean \u0111\u1ebfn <strong>2 kil\u00f4m\u00e9t<\/strong> tr\u00ean s\u1ee3i quang \u0111\u01a1n mode G.652.D.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H: T\u00f4i c\u00f3 c\u1ea7n b\u1ed9 l\u1ecdc \u0111\u1eb7c bi\u1ec7t ho\u1eb7c b\u1ed9 gh\u00e9p k\u00eanh\/t\u00e1ch k\u00eanh Mux\/Demux cho CWDM4 kh\u00f4ng?<\/strong><br\/><strong>\u01102: C\u00f3.<\/strong> C\u00e1c b\u1ed9 thu ph\u00e1t quang CWDM4 y\u00eau c\u1ea7u c\u00e1c b\u1ed9 gh\u00e9p k\u00eanh v\u00e0 t\u00e1ch k\u00eanh CWDM th\u1ee5 \u0111\u1ed9ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n s\u1ee3i quang gi\u1eefa hai \u0111i\u1ec3m cu\u1ed1i \u0111\u1ec3 k\u1ebft h\u1ee3p v\u00e0 t\u00e1ch c\u00e1c b\u01b0\u1edbc s\u00f3ng. \u0110\u00e2y l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n th\u1ee5 \u0111\u1ed9ng ri\u00eang bi\u1ec7t.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H: C\u00e1c m\u00f4-\u0111un CWDM4 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng c\u00f4ng ngh\u1ec7 BiDi kh\u00f4ng?<\/strong><br\/><strong>A:<\/strong> Kh\u00f4ng. CWDM4 ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng hai s\u1ee3i quang (Tx v\u00e0 Rx). C\u00e1c gi\u1ea3i ph\u00e1p 100G BiDi (nh\u01b0 QSFP28 BiDi) t\u1ed3n t\u1ea1i nh\u01b0ng s\u1eed d\u1ee5ng c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau tr\u00ean m\u1ed9t <em>single<\/em> c\u1eb7p s\u1ee3i quang \u0111\u1ec3 \u0111\u1ea1t ph\u1ea1m vi truy\u1ec1n xa h\u01a1n (v\u00ed d\u1ee5: 10 km, 20 km, 40 km).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H: CWDM4 c\u00f3 h\u1ed7 tr\u1ee3 c\u1eafm n\u00f3ng kh\u00f4ng?<\/strong><br\/><strong>A:<\/strong> C\u00f3, gi\u1ed1ng nh\u01b0 h\u1ea7u h\u1ebft c\u00e1c m\u00f4-\u0111un QSFP28, c\u00e1c b\u1ed9 thu ph\u00e1t quang CWDM4 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u1eafm n\u00f3ng, cho ph\u00e9p l\u1eafp \u0111\u1eb7t v\u00e0 th\u00e1o g\u1ee1 m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb ch\u1ee7.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H: T\u1ea1i sao n\u00ean ch\u1ecdn c\u00e1c m\u00f4-\u0111un CWDM4 c\u1ee7a LINK-PP?<\/strong><br\/><strong>\u0110: LINK-PP<\/strong> cung c\u1ea5p <strong>c\u00e1c b\u1ed9 thu ph\u00e1t quang 100G CWDM4 hi\u1ec7u su\u1ea5t cao, \u0111\u00e1ng tin c\u1eady, tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA<\/strong> \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb g\u1ed1c (OEM), gi\u00fap \u0111\u00e2y tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn th\u00f4ng minh \u0111\u1ec3 m\u1edf r\u1ed9ng m\u1ea1ng quang c\u1ee7a b\u1ea1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>Xem Th\u00eam<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/100g-qsfp28-optical-transceivers-selection-guide\/\">Kh\u00e1m ph\u00e1 c\u00e1c b\u1ed9 thu ph\u00e1t quang 100G QSFP28: SR4, LR4, CWDM4, PSM4 v\u00e0 nhi\u1ec1u h\u01a1n n\u1eefa<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/psm4-vs-cwdm4-which-optical-transceiver-for-your-network\/\">PSM4 so v\u1edbi CWDM4: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/100g-single-lambda-vs-4-channel-optical-modules-comparison\/\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c m\u00f4-\u0111un quang 100G Single Lambda v\u00e0 4 b\u01b0\u1edbc s\u00f3ng<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/100g-optical-transceiver-form-factors-guide\/\">C\u00e1c d\u1ea1ng h\u00ecnh th\u1ee9c c\u1ee7a b\u1ed9 thu ph\u00e1t quang 100G: QSFP28, CFP, CFP2, CFP4?<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>B\u1ed9 thu ph\u00e1t QSFP28 100G CWDM4 l\u00e0 gi\u1ea3i ph\u00e1p ti\u00eau chu\u1ea9n ng\u00e0nh cho c\u00e1c k\u1ebft n\u1ed1i Ethernet 100 Gigabit hi\u1ec7u su\u1ea5t cao v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed tr\u00ean kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 2 km <\/p>","protected":false},"author":1,"featured_media":5402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[13],"class_list":["post-5404","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-100g-modules"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5404","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=5404"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5404\/revisions"}],"predecessor-version":[{"id":11244,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5404\/revisions\/11244"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5402"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}