{"id":5323,"date":"2025-08-27T00:00:00","date_gmt":"2025-08-27T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp28-25g-esr-vs-sfp28-25g-sr-key-differences\/"},"modified":"2026-06-22T08:06:06","modified_gmt":"2026-06-22T08:06:06","slug":"sfp28-25g-esr-vs-sfp28-25g-sr-key-differences","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp28-25g-esr-vs-sfp28-25g-sr-key-differences","title":{"rendered":"SFP28 25G SR so v\u1edbi ESR: H\u01b0\u1edbng d\u1eabn T\u1ed1i \u01b0u \u0111\u1ec3 Ch\u1ecdn B\u1ed9 thu ph\u00e1t 25G Ph\u00f9 h\u1ee3p"},"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\/08c2502efd6f4a5392fdecca6e858dec.webp\" alt=\"SFP28-25G-ESR vs SFP28-25G-SR Key Differences and Best Use Cases\" class=\"wp-image-5321\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/08c2502efd6f4a5392fdecca6e858dec.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/08c2502efd6f4a5392fdecca6e858dec-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/08c2502efd6f4a5392fdecca6e858dec-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/08c2502efd6f4a5392fdecca6e858dec-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/08c2502efd6f4a5392fdecca6e858dec-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi m\u1ea1ng hi\u1ec7n \u0111\u1ea1i t\u1ed1c \u0111\u1ed9 cao, 25GbE \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u cho vi\u1ec7c chuy\u1ec3n m\u1ea1ch \u1edf \u0111\u1ea7u k\u1ec7 (top-of-rack), k\u1ebft n\u1ed1i trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u00e1c li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p. Khi tri\u1ec3n khai c\u00f4ng ngh\u1ec7 n\u00e0y, hai lo\u1ea1i b\u1ed9 thu ph\u00e1t ph\u1ed5 bi\u1ebfn nh\u1ea5t b\u1ea1n s\u1ebd g\u1eb7p ph\u1ea3i l\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473141.htm\"><strong>SFP28-25G-SR<\/strong><\/a> v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476088.htm\"><strong>SFP28-25G-ESR<\/strong><\/a>. M\u1eb7c d\u00f9 c\u00f3 v\u1ebb t\u01b0\u01a1ng t\u1ef1 khi nh\u00ecn s\u01a1 qua, nh\u01b0ng vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed c\u1ee7a m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd cung c\u1ea5p m\u1ed9t b\u1ea3ng so s\u00e1nh chuy\u00ean nghi\u1ec7p nh\u1eb1m l\u00e0m r\u00f5 m\u1ecdi nh\u1ea7m l\u1eabn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 Hi\u1ec3u v\u1ec1 nh\u1eefng \u0111i\u1ec1u c\u01a1 b\u1ea3n: SR so v\u1edbi ESR<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 hai m\u00f4-\u0111un \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch ng\u1eafn tr\u00ean <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide\/\"><strong>s\u1ee3i quang \u0111a mode (MMF)<\/strong><\/a>, s\u1eed d\u1ee5ng b\u01b0\u1edbc s\u00f3ng 850 nm. S\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i n\u1eb1m \u1edf ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng cho ph\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c ph\u1ea1m vi \u0111\u00f3.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>SFP28-25G-SR (Kho\u1ea3ng c\u00e1ch ng\u1eafn):<\/strong> \u0110\u00e2y l\u00e0 m\u00f4-\u0111un ti\u00eau chu\u1ea9n d\u00f9ng cho c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi l\u00ean \u0111\u1ebfn 100 m\u00e9t tr\u00ean c\u00e1p quang OM4.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>SFP28-25G-ESR (Kho\u1ea3ng c\u00e1ch ng\u1eafn m\u1edf r\u1ed9ng):<\/strong> Nh\u01b0 t\u00ean g\u1ecdi g\u1ee3i \u00fd, m\u00f4-\u0111un n\u00e0y \u0111\u1ea9y gi\u1edbi h\u1ea1n xa h\u01a1n. N\u00f3 t\u1eadn d\u1ee5ng quang h\u1ecdc tinh vi h\u01a1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c <strong>m\u1edf r\u1ed9ng<\/strong> l\u00ean \u0111\u1ebfn 400 m\u00e9t tr\u00ean c\u00e1p quang OM4.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 So s\u00e1nh tr\u1ef1c ti\u1ebfp: Nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y c\u00f9ng \u0111i s\u00e2u v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee5 th\u1ec3. B\u1ea3ng sau \u0111\u00e2y n\u00eau b\u1eadt nh\u1eefng kh\u00e1c bi\u1ec7t quan tr\u1ecdng gi\u1eefa hai <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\"><strong>B\u1ed9 thu ph\u00e1t SFP28 25G<\/strong><\/a>.<\/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>SFP28-25G-SR<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>SFP28-25G-ESR<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u00ean \u0111\u1ea7y \u0111\u1ee7<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea1m vi ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch ng\u1eafn m\u1edf r\u1ed9ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ea7m ho\u1ea1t \u0111\u1ed9ng ti\u00eau chu\u1ea9n<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 70 m tr\u00ean OM3 \/ 100 m tr\u00ean OM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 300 m tr\u00ean OM3 \/ 400 m tr\u00ean OM4<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i s\u1ee3i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p quang \u0111a mode (OM3, OM4)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p quang \u0111a mode (OM3, OM4)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>B\u01b0\u1edbc s\u00f3ng<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>M\u1ee9c ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t t\u1ed1i \u0111a<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u01b0\u1eddng &lt; 1,0 W<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n m\u1ed9t ch\u00fat, kho\u1ea3ng 1,2 W<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u1ee8ng d\u1ee5ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c li\u00ean k\u1ebft ng\u1eafn trong c\u00f9ng m\u1ed9t k\u1ec7 ho\u1eb7c gi\u1eefa c\u00e1c k\u1ec7 li\u1ec1n k\u1ec1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c li\u00ean k\u1ebft n\u1ed9i trung t\u00e2m d\u1eef li\u1ec7u d\u00e0i h\u01a1n, \u0111\u01b0\u1eddng truy\u1ec1n x\u01b0\u01a1ng s\u1ed1ng trong khu\u00f4n vi\u00ean<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Cost<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 Th\u1ea5p h\u01a1n (Ti\u00eau chu\u1ea9n ng\u00e0nh)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u26a1 Cao h\u01a1n (Hi\u1ec7u n\u0103ng m\u1edf r\u1ed9ng)<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 L\u1ef1a ch\u1ecdn module ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ee7a b\u1ea1n kh\u00f4ng ch\u1ec9 d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px 0px 4px;\"><strong>Ch\u1ecdn SFP28-25G-SR n\u1ebfu:<\/strong><\/p><ul><li><p style=\"margin: 0px;\">B\u1ea1n \u0111ang k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7 v\u1edbi m\u1ed9t <strong>b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ea7u k\u1ec7 (ToR)<\/strong> trong c\u00f9ng m\u1ed9t k\u1ec7.<\/p><\/li><li><p style=\"margin: 0px;\">Kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft c\u1ee7a b\u1ea1n th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi 100 m\u00e9t.<\/p><\/li><li><p style=\"margin: 0px;\">\u01afu ti\u00ean c\u1ee7a b\u1ea1n l\u00e0 \u0111\u1ea1t m\u1ee9c chi ph\u00ed m\u1ed7i c\u1ed5ng th\u1ea5p nh\u1ea5t c\u00f3 th\u1ec3 cho c\u00e1c \u1ee9ng d\u1ee5ng kho\u1ea3ng c\u00e1ch ng\u1eafn ti\u00eau chu\u1ea9n.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Ch\u1ecdn SFP28-25G-ESR n\u1ebfu:<\/strong><\/p><ul><li><p style=\"margin: 0px;\">B\u1ea1n c\u1ea7n bao ph\u1ee7 kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n trong m\u1ed9t <strong>ph\u00f2ng trung t\u00e2m d\u1eef li\u1ec7u<\/strong> ho\u1eb7c gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 trong m\u1ed9t <strong>m\u1ea1ng khu\u00f4n vi\u00ean<\/strong> m\u00e0 kh\u00f4ng c\u1ea7n n\u00e2ng c\u1ea5p l\u00ean c\u00e1p quang \u0111\u01a1n mode.<\/p><\/li><li><p style=\"margin: 0px;\">C\u00e1c k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n n\u1eb1m trong kho\u1ea3ng t\u1eeb 100 m \u0111\u1ebfn 400 m.<\/p><\/li><li><p style=\"margin: 0px;\">B\u1ea1n coi tr\u1ecdng t\u00ednh linh ho\u1ea1t \u0111\u1ec3 ph\u1ee7 s\u00f3ng c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n d\u00e0i h\u01a1n v\u00e0 tr\u00e1nh chi ph\u00ed l\u1eafp \u0111\u1eb7t c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang s\u1ee3i \u0111\u01a1n ch\u1ebf \u0111\u1ed9 m\u1edbi.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111ang t\u00ecm ki\u1ebfm <strong>c\u00e1c b\u1ed9 thu ph\u00e1t quang ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch<\/strong> \u0111\u00e1p \u1ee9ng \u0111\u00fang th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u00e3 c\u00f4ng b\u1ed1, c\u00e1c <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473141.htm\"><strong>LS-MM8525-S1C<\/strong><\/a> and <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476088.htm\"><strong>LS-MM8525-S3C<\/strong><\/a> m\u00f4-\u0111un n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m \u0111\u1ea1t hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ed9 tin c\u1eady t\u1ed1i \u0111a. Ch\u00fang \u0111\u01b0\u1ee3c ki\u1ec3m tra nghi\u00eam ng\u1eb7t v\u1ec1 <strong>t\u01b0\u01a1ng th\u00edch<\/strong> kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch OEM l\u1edbn nh\u01b0 Cisco, Arista, Juniper v\u00e0 c\u00e1c h\u00e3ng kh\u00e1c, \u0111\u1ea3m b\u1ea3o t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n c\u00f3 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 K\u1ebft lu\u1eadn v\u00e0 C\u00e1c b\u01b0\u1edbc ti\u1ebfp theo<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng t\u1ed3n t\u1ea1i \u201cm\u00f4-\u0111un t\u1ed1t h\u01a1n\u201d\u2014ch\u1ec9 c\u00f3 \u201cm\u00f4-\u0111un ph\u00f9 h\u1ee3p nh\u1ea5t\u201d cho nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n. M\u00f4-\u0111un <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473141.htm\"><strong>SFP28-25G-SR<\/strong><\/a> cung c\u1ea5p gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed cho ph\u1ea7n l\u1edbn \u1ee9ng d\u1ee5ng kho\u1ea3ng c\u00e1ch ng\u1eafn, trong khi m\u00f4-\u0111un <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476088.htm\"><strong>SFP28-25G-ESR<\/strong><\/a> mang l\u1ea1i kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch thi\u1ebft y\u1ebfu cho c\u00e1c thi\u1ebft k\u1ebf m\u1ea1ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe h\u01a1n.<\/p>\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\/941a57c76dd5479e8df3313a500e574c.webp\" alt=\"SFP28 Module\" class=\"wp-image-5322\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/941a57c76dd5479e8df3313a500e574c.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/941a57c76dd5479e8df3313a500e574c-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/941a57c76dd5479e8df3313a500e574c-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/941a57c76dd5479e8df3313a500e574c-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/941a57c76dd5479e8df3313a500e574c-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1eabn ch\u01b0a ch\u1eafc ch\u1eafn m\u00f4-\u0111un thu ph\u00e1t 25G n\u00e0o l\u00e0 l\u1ef1a ch\u1ecdn ho\u00e0n h\u1ea3o nh\u1ea5t cho ki\u1ebfn tr\u00fac m\u1ea1ng c\u1ee7a b\u1ea1n?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udd0d <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> \u0110\u1ed9i ng\u0169 chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i <strong>t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/strong> and <strong>v\u00e0 b\u1ea3o h\u00e0nh tr\u1ecdn \u0111\u1eddi<\/strong> cho to\u00e0n b\u1ed9 c\u00e1c b\u1ed9 thu ph\u00e1t quang c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u1ea3 \u1ee9ng d\u1ee5ng Ethernet v\u00e0 OTN. <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\"><strong>Duy\u1ec7t to\u00e0n b\u1ed9 danh m\u1ee5c m\u00f4-\u0111un SFP28 c\u1ee7a ch\u00fang t\u00f4i v\u00e0 nh\u1eadn b\u00e1o gi\u00e1 ngay h\u00f4m nay!<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C1: T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00f4-\u0111un ESR cho k\u1ebft n\u1ed1i r\u1ea5t ng\u1eafn (v\u00ed d\u1ee5: 10 m\u00e9t) kh\u00f4ng?<\/strong><br\/><strong>A:<\/strong> V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m nh\u01b0 v\u1eady. C\u00e1c m\u00f4-\u0111un SFP28-25G-ESR t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y kh\u00f4ng hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed. B\u1ea1n s\u1ebd chi nhi\u1ec1u h\u01a1n cho m\u00f4-\u0111un ESR m\u00e0 kh\u00f4ng t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c t\u00ednh n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a n\u00f3 (kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch). Bi\u1ebfn th\u1ec3 SR l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u v\u00e0 kinh t\u1ebf nh\u1ea5t cho c\u00e1c k\u1ebft n\u1ed1i ng\u1eafn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C2: C\u00e1c m\u00f4-\u0111un n\u00e0y c\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch Cisco\/Juniper\/Arista hi\u1ec7n c\u00f3 c\u1ee7a t\u00f4i kh\u00f4ng?<\/strong><br\/><strong>A:<\/strong> H\u1ea7u h\u1ebft c\u00e1c m\u00f4-\u0111un b\u00ean th\u1ee9 ba, bao g\u1ed3m c\u1ea3 nh\u1eefng s\u1ea3n ph\u1ea9m t\u1eeb <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a>, \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\"><strong><p>capability.<\/p><\/strong><\/a> tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c r\u1ed9ng r\u00e3i. Tuy nhi\u00ean, vi\u1ec7c l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p uy t\u00edn\u2014ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n ki\u1ec3m tra <strong>t\u01b0\u01a1ng th\u00edch m\u1ed9t c\u00e1ch nghi\u00eam ng\u1eb7t<\/strong> lu\u00f4n l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t nh\u1eb1m tr\u00e1nh m\u1ecdi s\u1ef1 c\u1ed1. To\u00e0n b\u1ed9 c\u00e1c b\u1ed9 thu ph\u00e1t LINK-PP \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh s\u1eb5n v\u00e0 ki\u1ec3m tra \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C3: T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1p quang OM5 v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t n\u00e0y kh\u00f4ng?<\/strong><br\/><strong>A:<\/strong> V\u00e2ng! C\u1ea3 hai m\u00f4-\u0111un SR v\u00e0 ESR \u0111\u1ec1u t\u01b0\u01a1ng th\u00edch \u0111\u1ea7y \u0111\u1ee7 v\u1edbi s\u1ee3i quang OM5. OM5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi OM4. B\u1ea1n c\u00f3 th\u1ec3 k\u1ef3 v\u1ecdng hi\u1ec7u su\u1ea5t kho\u1ea3ng c\u00e1ch nh\u01b0 nhau tr\u00ean OM5 nh\u01b0 tr\u00ean OM4 (100 m \u0111\u1ed1i v\u1edbi SR, 400 m \u0111\u1ed1i v\u1edbi ESR). L\u1ee3i th\u1ebf ch\u00ednh c\u1ee7a OM5 l\u00e0 d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 r\u1ed9ng h\u01a1n nh\u01b0<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/100g-swdm4-transceiver-explained-network-professionals-guide\/\"><strong>SWDM<\/strong><\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C4: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ESR v\u00e0 LR l\u00e0 g\u00ec? T\u1ea1i sao kh\u00f4ng lu\u00f4n s\u1eed d\u1ee5ng LR cho kho\u1ea3ng c\u00e1ch xa?<br><\/strong><br\/><strong>A:<\/strong> <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476046.htm\"><strong>SFP28-25G-LR<\/strong><\/a> (Kho\u1ea3ng c\u00e1ch xa) s\u1eed d\u1ee5ng m\u1ed9t<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-single-mode-fiber-and-how-does-it-work\/\"><strong>v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/strong><\/a> v\u00e0 laser 1310 nm \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 10 km. S\u1ef1 kh\u00e1c bi\u1ec7t then ch\u1ed1t n\u1eb1m \u1edf lo\u1ea1i c\u00e1p quang. ESR cho ph\u00e9p b\u1ea1n khai th\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang \u0111a mode hi\u1ec7n c\u00f3 \u0111\u1ec3 truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 400 m. Vi\u1ec7c chuy\u1ec3n sang LR \u0111\u00f2i h\u1ecfi h\u1ec7 th\u1ed1ng c\u00e1p quang \u0111\u01a1n mode \u0111\u1eaft h\u01a1n, v\u1edbi chi ph\u00ed l\u1eafp \u0111\u1eb7t ban \u0111\u1ea7u cao h\u01a1n. ESR cung c\u1ea5p gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed ho\u00e0n h\u1ea3o cho c\u00e1c kho\u1ea3ng c\u00e1ch trung b\u00ecnh.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C5: M\u00f4-\u0111un ESR c\u00f3 sinh nhi\u1ec7t nhi\u1ec1u h\u01a1n ho\u1eb7c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng nhi\u1ec1u h\u01a1n kh\u00f4ng?<br><\/strong><br\/><strong>A:<\/strong> N\u00f3i chung, \u0111\u00fang v\u1eady. Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch c\u1ee7a m\u00f4-\u0111un ESR y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t ph\u00e1t laser cao h\u01a1n, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao h\u01a1n m\u1ed9t ch\u00fat (v\u00e0 do \u0111\u00f3, t\u1ea3n nhi\u1ec7t cao h\u01a1n) so v\u1edbi phi\u00ean b\u1ea3n SR. Tuy nhi\u00ean, s\u1ef1 ch\u00eanh l\u1ec7ch th\u01b0\u1eddng r\u1ea5t nh\u1ecf (v\u00ed d\u1ee5: 1,0 W so v\u1edbi 1,2 W) v\u00e0 ho\u00e0n to\u00e0n n\u1eb1m trong gi\u1edbi h\u1ea1n thi\u1ebft k\u1ebf nhi\u1ec7t c\u1ee7a c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh c\u00e1c module sfp28-25g-esr v\u00e0 sfp28-25g-sr cho m\u1ea1ng 25G. Xem c\u00e1c kh\u00e1c bi\u1ec7t ch\u00ednh v\u1ec1 kho\u1ea3ng c\u00e1ch, lo\u1ea1i c\u00e1p quang v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u cho trung t\u00e2m d\u1eef li\u1ec7u.<\/p>","protected":false},"author":1,"featured_media":5321,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5323","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\/5323","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=5323"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5323\/revisions"}],"predecessor-version":[{"id":11217,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5323\/revisions\/11217"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5321"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}