{"id":3033,"date":"2026-03-16T00:00:00","date_gmt":"2026-03-16T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/short-range-sfp-module-distance-specs-guide\/"},"modified":"2026-06-22T03:56:11","modified_gmt":"2026-06-22T03:56:11","slug":"short-range-sfp-module-distance-specs-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/short-range-sfp-module-distance-specs-guide","title":{"rendered":"M\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn: L\u00e0 g\u00ec v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1edf kho\u1ea3ng c\u00e1ch bao xa"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f76ced2d35b4db4942d1dc17736463d-1024x536.jpg\" alt=\"Short Range SFP Module: What It Is and How Far It Works\" class=\"wp-image-3024\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f76ced2d35b4db4942d1dc17736463d-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f76ced2d35b4db4942d1dc17736463d-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f76ced2d35b4db4942d1dc17736463d-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f76ced2d35b4db4942d1dc17736463d-18x9.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f76ced2d35b4db4942d1dc17736463d.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t quang ph\u00f9 h\u1ee3p l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 thi\u1ebft k\u1ebf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng hi\u1ec7u qu\u1ea3. Trong s\u1ed1 c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t cho k\u1ebft n\u1ed1i s\u1ee3i quang kho\u1ea3ng c\u00e1ch ng\u1eafn l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">M\u00f4-\u0111un SFP Kho\u1ea3ng C\u00e1ch Ng\u1eafn<\/a>, m\u1ed9t b\u1ed9 thu ph\u00e1t quang nh\u1ecf g\u1ecdn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao tr\u00ean s\u1ee3i quang \u0111a mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP kho\u1ea3ng c\u00e1ch ng\u1eafn th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng n\u1eb1m t\u01b0\u01a1ng \u0111\u1ed1i g\u1ea7n nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u, m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch doanh nghi\u1ec7p v\u00e0 c\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c gi\u00e1 (rack). C\u00e1c m\u00f4-\u0111un n\u00e0y th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u tr\u00ean c\u00e1c lo\u1ea1i s\u1ee3i quang \u0111a mode nh\u01b0 OM3 ho\u1eb7c OM4, h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch t\u1eeb v\u00e0i ch\u1ee5c m\u00e9t \u0111\u1ebfn v\u00e0i tr\u0103m m\u00e9t t\u00f9y thu\u1ed9c v\u00e0o chu\u1ea9n Ethernet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd hi\u1ec7u qu\u1ea3 chi ph\u00ed, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p v\u00e0 m\u1eadt \u0111\u1ed9 c\u1ed5ng cao, c\u00e1c m\u00f4-\u0111un SFP kho\u1ea3ng c\u00e1ch ng\u1eafn th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft m\u1ea1ng n\u1ed9i b\u1ed9 n\u01a1i kh\u00f4ng c\u1ea7n truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa. C\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng s\u1eed d\u1ee5ng ch\u00fang cho c\u00e1c li\u00ean k\u1ebft uplink c\u1ee7a switch, k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7\u2013switch v\u00e0 c\u00e1c li\u00ean k\u1ebft t\u1eadp h\u1ee3p b\u0103ng th\u00f4ng cao b\u00ean trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng v\u1eabn c\u00f2n nh\u1eefng c\u00e2u h\u1ecfi th\u1ef1c t\u1ebf khi l\u1ef1a ch\u1ecdn ho\u1eb7c tri\u1ec3n khai c\u00e1c m\u00f4-\u0111un n\u00e0y, v\u00ed d\u1ee5 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh m\u00e0 m\u1ed9t M\u00f4-\u0111un SFP Kho\u1ea3ng C\u00e1ch Ng\u1eafn c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 l\u00e0 bao nhi\u00eau?<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i s\u1ee3i quang n\u00e0o n\u00ean s\u1eed d\u1ee5ng v\u1edbi b\u1ed9 thu ph\u00e1t SR?<\/p><\/li>\n\n\n\n<li><p>Khi n\u00e0o b\u1ea1n n\u00ean ch\u1ecdn m\u00f4-\u0111un SFP SR thay v\u00ec m\u00f4-\u0111un SFP LR ho\u1eb7c c\u00e1p DAC?<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c m\u00f4-\u0111un quang t\u1ea7m ng\u1eafn v\u00e0 t\u1ea7m xa l\u00e0 g\u00ec?<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch \u0111\u1ecbnh ngh\u0129a, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, \u1ee9ng d\u1ee5ng v\u00e0 ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn c\u1ee7a M\u00f4-\u0111un SFP Kho\u1ea3ng C\u00e1ch Ng\u1eafn, gi\u00fap c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng, chuy\u00ean gia CNTT v\u00e0 chuy\u00ean vi\u00ean mua s\u1eafm hi\u1ec3u r\u00f5 c\u00e1ch l\u1ef1a ch\u1ecdn \u0111\u00fang <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> cho c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f M\u00f4-\u0111un SFP Kho\u1ea3ng C\u00e1ch Ng\u1eafn l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t m\u00f4-\u0111un SFP Kho\u1ea3ng C\u00e1ch Ng\u1eafn l\u00e0 m\u1ed9t lo\u1ea1i b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u Ethernet tr\u00ean kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn b\u1eb1ng s\u1ee3i quang \u0111a mode (MMF). C\u00e1c m\u00f4-\u0111un n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u, n\u01a1i c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 switch, router v\u00e0 m\u00e1y ch\u1ee7 n\u1eb1m trong c\u00f9ng m\u1ed9t ph\u00f2ng, d\u00e3y gi\u00e1 (rack row) ho\u1eb7c t\u1ea7ng t\u00f2a nh\u00e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c m\u00f4-\u0111un SFP kho\u1ea3ng c\u00e1ch ng\u1eafn ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm v\u00e0 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 VCSEL (<a target=\"_self\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\">Laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t bu\u1ed3ng d\u1ecdc<\/a>). Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 tr\u00ean c\u00e1c lo\u1ea1i s\u1ee3i quang \u0111a mode nh\u01b0 OM2, OM3 ho\u1eb7c OM4, th\u01b0\u1eddng h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch t\u1eeb 100 m\u00e9t \u0111\u1ebfn kho\u1ea3ng 400 m\u00e9t t\u00f9y thu\u1ed9c v\u00e0o chu\u1ea9n Ethernet.<\/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\/2b8ee60159dd4984a45a741dcb79a2d8.jpg\" alt=\"What Is a Short Range SFP Module?\" class=\"wp-image-3025\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2b8ee60159dd4984a45a741dcb79a2d8.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2b8ee60159dd4984a45a741dcb79a2d8-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2b8ee60159dd4984a45a741dcb79a2d8-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2b8ee60159dd4984a45a741dcb79a2d8-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2b8ee60159dd4984a45a741dcb79a2d8-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i v\u00ec ch\u00fang mang l\u1ea1i nhi\u1ec1u l\u1ee3i th\u1ebf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u1ebft n\u1ed1i quang chi ph\u00ed hi\u1ec7u qu\u1ea3<\/strong> so v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t t\u1ea7m xa<\/p><\/li>\n\n\n\n<li><p><strong>Ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t th\u1ea5p<\/strong> ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c c\u1ed5ng switch m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p><strong>\u0110\u1ed9 tin c\u1eady cao<\/strong> trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li>\n\n\n\n<li><p><strong>Kh\u1ea3 n\u0103ng c\u1eafm n\u00f3ng linh ho\u1ea1t<\/strong> v\u00e0o switch, router v\u00e0 card giao di\u1ec7n m\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477562.htm\">SFP 1000BASE-SX<\/a> m\u00f4-\u0111un cho Gigabit Ethernet v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\">SFP+ 10GBASE-SR<\/a> m\u00f4-\u0111un cho m\u1ea1ng 10-Gigabit. C\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng doanh nghi\u1ec7p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SR trong SFP ngh\u0129a l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong thu\u1eadt ng\u1eef m\u1ea1ng quang, SR vi\u1ebft t\u1eaft c\u1ee7a \u201cShort Range\u201d (Kho\u1ea3ng C\u00e1ch Ng\u1eafn).<strong>\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476091.htm\"><strong>M\u00f4-\u0111un SFP SR<\/strong><\/a> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho truy\u1ec1n th\u00f4ng s\u1ee3i quang kho\u1ea3ng c\u00e1ch ng\u1eafn, th\u01b0\u1eddng tr\u00ean s\u1ee3i quang \u0111a mode. C\u00e1c m\u00f4-\u0111un n\u00e0y th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn cho c\u00e1c chu\u1ea9n Ethernet nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476091.htm\" target=\"_self\"><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><\/a><strong> (1 Gbps)<\/strong><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/475415.htm\" target=\"_self\"><strong>10GBASE-SR<\/strong><\/a><strong> (10 Gbps)<\/strong><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476706.htm\" target=\"_self\"><strong>25GBASE-LR<\/strong><\/a><strong> (25 Gbps)<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00fd hi\u1ec7u \u201cSR\u201d ph\u00e2n bi\u1ec7t c\u00e1c m\u00f4-\u0111un n\u00e0y v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t quang kh\u00e1c nh\u01b0:<\/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>Lo\u1ea1i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u00dd ngh\u0129a<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>SR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng C\u00e1ch Ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~300\u2013400 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>LR<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng C\u00e1ch Xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn ~10 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>ER<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng C\u00e1ch M\u1edf R\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn ~40 km<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1edfi v\u00ec <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476076.htm\">M\u00f4-\u0111un SR<\/a> s\u1eed d\u1ee5ng s\u1ee3i quang \u0111a mode, ch\u00fang th\u01b0\u1eddng r\u1ebb h\u01a1n v\u00e0 d\u1ec5 tri\u1ec3n khai h\u01a1n c\u00e1c m\u00f4-\u0111un quang t\u1ea7m xa y\u00eau c\u1ea7u s\u1ee3i quang \u0111\u01a1n mode.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 thu ph\u00e1t kho\u1ea3ng c\u00e1ch ng\u1eafn l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482145.htm\"><strong>b\u1ed9 thu ph\u00e1t kho\u1ea3ng c\u00e1ch ng\u1eafn<\/strong><\/a> l\u00e0 m\u1ed9t m\u00f4-\u0111un truy\u1ec1n th\u00f4ng quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u kho\u1ea3ng c\u00e1ch ng\u1eafn trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng c\u1ee5c b\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00ean trong trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c t\u00f2a nh\u00e0 doanh nghi\u1ec7p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t n\u00e0y chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb m\u1ea1ng th\u00e0nh t\u00edn hi\u1ec7u quang di chuy\u1ec3n qua c\u00e1p s\u1ee3i quang, sau \u0111\u00f3 chuy\u1ec3n \u0111\u1ed5i l\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1ea1i \u0111\u1ea7u nh\u1eadn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t kho\u1ea3ng c\u00e1ch ng\u1eafn th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>k\u1ebft n\u1ed1i switch\u2013switch<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7\u2013switch<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>m\u1ea1ng t\u1eadp h\u1ee3p trung t\u00e2m d\u1eef li\u1ec7u<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>tri\u1ec3n khai gi\u00e1 (rack) m\u1eadt \u0111\u1ed9 cao<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">So v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t t\u1ea7m xa, c\u00e1c m\u00f4-\u0111un kho\u1ea3ng c\u00e1ch ng\u1eafn th\u01b0\u1eddng c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u00f4ng su\u1ea5t \u0111\u1ea7u ra quang th\u1ea5p h\u01a1n<\/p><\/li>\n\n\n\n<li><p>kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn ng\u1eafn h\u01a1n<\/p><\/li>\n\n\n\n<li><p>chi ph\u00ed v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng n\u1ed9i b\u1ed9 t\u1ed1c \u0111\u1ed9 cao, n\u01a1i c\u00e1c thi\u1ebft b\u1ecb n\u1eb1m t\u01b0\u01a1ng \u0111\u1ed1i g\u1ea7n nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SFP l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP vi\u1ebft t\u1eaft c\u1ee7a \u201cSmall Form-factor Pluggable\u201d (C\u1eafm r\u1eddi k\u00edch th\u01b0\u1edbc nh\u1ecf).\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t giao di\u1ec7n nh\u1ecf g\u1ecdn, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476064.htm\">b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-network-switch\/\">B\u1ed9 chuy\u1ec3n m\u1ea1ch Ethernet<\/a>, router v\u00e0 card giao di\u1ec7n m\u1ea1ng. Ti\u00eau chu\u1ea9n SFP cho ph\u00e9p thi\u1ebft b\u1ecb m\u1ea1ng h\u1ed7 tr\u1ee3 c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n kh\u00e1c nhau\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1p s\u1ee3i quang ho\u1eb7c k\u1ebft n\u1ed1i \u0111\u1ed3ng tr\u1ee5c\u2014b\u1eb1ng c\u00e1ch c\u1eafm m\u00f4-\u0111un ph\u00f9 h\u1ee3p v\u00e0o c\u1ed5ng SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482292.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd nh\u1ecf<\/strong>, cho ph\u00e9p thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 m\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/p><\/li>\n\n\n\n<li><p><strong>Thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/strong>, cho ph\u00e9p thay th\u1ebf m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p><strong>Linh ho\u1ea1t v\u1ec1 ph\u01b0\u01a1ng ti\u1ec7n<\/strong>, h\u1ed7 tr\u1ee3 c\u1ea3 k\u1ebft n\u1ed1i c\u00e1p quang v\u00e0 c\u00e1p \u0111\u1ed3ng<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i<\/strong> tr\u00ean nhi\u1ec1u nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb m\u1ea1ng v\u00e0 c\u00e1c chu\u1ea9n Ethernet<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y, c\u00e1c m\u00f4-\u0111un SFP \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng \u0111\u1ecbnh d\u1ea1ng b\u1ed9 thu ph\u00e1t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng Ethernet v\u00e0 quang h\u1ecdc hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f Ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00f4-\u0111un SFP ng\u1eafn l\u00e0 bao nhi\u00eau?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea1m vi truy\u1ec1n d\u1eabn c\u1ee7a m\u00f4-\u0111un SFP ng\u1eafn ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m chu\u1ea9n Ethernet, lo\u1ea1i s\u1ee3i quang v\u00e0 c\u00f4ng ngh\u1ec7 quang h\u1ecdc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed9 thu ph\u00e1t. Trong h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng Ethernet, c\u00e1c m\u00f4-\u0111un quang ng\u1eafn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi s\u1ee3i quang \u0111a mode trong trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng doanh nghi\u1ec7p v\u00e0 m\u00f4i tr\u01b0\u1eddng khu\u00f4n vi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP ng\u1eafn th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm tr\u00ean <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/om1-om2-om3-om4-om5-multimode-fiber-guide\/\">c\u00e1p quang \u0111a mode<\/a> (MMF) nh\u01b0 OM2, OM3 ho\u1eb7c OM4. V\u00ec s\u1ee3i quang \u0111a mode h\u1ed7 tr\u1ee3 b\u0103ng th\u00f4ng cao tr\u00ean kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn, n\u00ean c\u00e1c m\u00f4-\u0111un n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c switch, k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u1ee7 rack v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng n\u1ed9i b\u1ed9 t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f9y thu\u1ed9c v\u00e0o chu\u1ea9n Ethernet v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ee3i quang, ph\u1ea1m vi truy\u1ec1n d\u1eabn c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP ng\u1eafn th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 100 m\u00e9t \u0111\u1ebfn 550 m\u00e9t.<\/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\/1c4b422cf61f49aeadb2423f3d0798ed.jpg\" alt=\"What Is the Range of a Short Range SFP?\" class=\"wp-image-3026\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c4b422cf61f49aeadb2423f3d0798ed.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c4b422cf61f49aeadb2423f3d0798ed-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c4b422cf61f49aeadb2423f3d0798ed-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c4b422cf61f49aeadb2423f3d0798ed-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c4b422cf61f49aeadb2423f3d0798ed-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP-SR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tri\u1ec3n khai m\u1ea1ng th\u1ef1c t\u1ebf, c\u00e1c m\u00f4-\u0111un SFP-SR (ng\u1eafn) \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c kho\u1ea3ng c\u00e1ch trong c\u00f9ng m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c t\u00f2a nh\u00e0. Ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n so v\u1edbi c\u00e1c m\u00f4-\u0111un quang t\u1ea7m xa, nh\u01b0ng v\u1eabn \u0111\u1ee7 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u h\u1ea7u h\u1ebft c\u00e1c li\u00ean k\u1ebft m\u1ea1ng n\u1ed9i b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c m\u00f4-\u0111un SR h\u1ed7 tr\u1ee3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>100 m \u2013 400 m<\/strong> trong c\u00e1c m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i<\/p><\/li>\n\n\n\n<li><p><strong>l\u00ean t\u1edbi ~550 m<\/strong> \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 tri\u1ec3n khai Gigabit Ethernet d\u00f9ng s\u1ee3i quang \u0111a mode<\/p><\/li>\n\n\n\n<li><p>kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n khi s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i s\u1ee3i quang ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do ph\u1ea1m vi n\u00e0y, c\u00e1c m\u00f4-\u0111un SFP-SR th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>li\u00ean k\u1ebft gi\u1eefa c\u00e1c switch trong trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>k\u1ebft n\u1ed1i t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ebfn switch<\/p><\/li>\n\n\n\n<li><p>li\u00ean k\u1ebft quang gi\u1eefa c\u00e1c t\u1ee7 rack<\/p><\/li>\n\n\n\n<li><p>li\u00ean k\u1ebft uplink \u1edf l\u1edbp t\u1ed5ng h\u1ee3p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tri\u1ec3n khai n\u00e0y \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb chi ph\u00ed th\u1ea5p v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p c\u1ee7a c\u00e1c b\u1ed9 thu ph\u00e1t quang ng\u1eafn \u0111a mode.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh kho\u1ea3ng c\u00e1ch gi\u1eefa 1000BASE-SX v\u00e0 10GBASE-SR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c chu\u1ea9n Ethernet kh\u00e1c nhau quy \u0111\u1ecbnh c\u00e1c ph\u1ea1m vi truy\u1ec1n d\u1eabn kh\u00e1c nhau cho c\u00e1c m\u00f4-\u0111un quang ng\u1eafn. Hai chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 1000BASE-SX (Gigabit Ethernet) v\u00e0 10GBASE-SR (Ethernet 10 Gigabit).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ph\u1ea1m vi \u0111i\u1ec3n h\u00ecnh \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y b\u00ean d\u01b0\u1edbi:<\/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>Ti\u00eau chu\u1ea9n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><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><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>OM2 \/ OM3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>10GBASE-SR<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~300 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><p>Up to 550 m (1,800 ft)<\/p><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>10GBASE-SR<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~400 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>OM4<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 10GBASE-SR ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n, nh\u01b0ng kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a c\u1ee7a n\u00f3 th\u01b0\u1eddng ng\u1eafn h\u01a1n so v\u1edbi 1000BASE-SX v\u00ec t\u00edn hi\u1ec7u c\u00f3 b\u0103ng th\u00f4ng cao h\u01a1n s\u1ebd ch\u1ecbu \u1ea3nh h\u01b0\u1edfng m\u1ea1nh h\u01a1n b\u1edfi hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc trong s\u1ee3i quang \u0111a mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, c\u00e1c lo\u1ea1i s\u1ee3i quang \u0111a mode m\u1edbi h\u01a1n nh\u01b0 OM3 v\u00e0 OM4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i nh\u1eb1m h\u1ed7 tr\u1ee3 c\u00e1c li\u00ean k\u1ebft Ethernet t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch lo\u1ea1i s\u1ee3i quang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kho\u1ea3ng c\u00e1ch c\u1ee7a m\u00f4-\u0111un SFP-SR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lo\u1ea1i v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ee3i quang \u0111a mode \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1ed1i \u0111a c\u1ee7a m\u1ed9t m\u00f4-\u0111un SFP-SR.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh nhi\u1ec1u c\u1ea5p hi\u1ec7u n\u0103ng kh\u00e1c nhau:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>B\u0103ng th\u00f4ng \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>Up to 275 m (900 ft)<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>s\u1ee3i quang \u0111a mode c\u0169<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>kho\u1ea3ng c\u00e1ch SR ng\u1eafn h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong><p>Up to 550 m (1,800 ft)<\/p><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>s\u1ee3i quang \u0111a mode \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho laser<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~300 m cho 10G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>OM4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>s\u1ee3i quang \u0111a mode hi\u1ec7u n\u0103ng cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~400 m cho 10G<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c lo\u1ea1i s\u1ee3i quang ch\u1ea5t l\u01b0\u1ee3ng cao h\u01a1n nh\u01b0 OM3 v\u00e0 OM4 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn laser 850 nm \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a, gi\u00fap gi\u1ea3m t\u00e1n s\u1eafc t\u00edn hi\u1ec7u v\u00e0 cho ph\u00e9p \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP ng\u1eafn th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 VCSEL (Laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t h\u1ed1c d\u1ecdc) 850 nm k\u1ebft h\u1ee3p v\u1edbi <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-duplex-lc-connector-explained\/\">\u0111\u1ea7u n\u1ed1i LC duplex,<\/a> khi\u1ebfn ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng quang m\u1eadt \u0111\u1ed9 cao, n\u01a1i y\u00eau c\u1ea7u giao ti\u1ebfp hi\u1ec7u qu\u1ea3 \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f M\u00f4-\u0111un SFP n\u00e0o c\u1ea7n thi\u1ebft cho k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c li\u00ean k\u1ebft m\u1ea1ng kho\u1ea3ng c\u00e1ch ng\u1eafn, gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 m\u00f4-\u0111un SFP-SR (ng\u1eafn) ho\u1eb7c <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476064.htm\">m\u00f4-\u0111un SFP+<\/a>, th\u01b0\u1eddng \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i v\u1edbi c\u00e1p s\u1ee3i quang \u0111a mode. C\u00e1c m\u00f4-\u0111un quang n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho giao ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao trong kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn, do \u0111\u00f3 r\u1ea5t l\u00fd t\u01b0\u1edfng cho trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng doanh nghi\u1ec7p v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng khu\u00f4n vi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, m\u00f4-\u0111un SFP-SR kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn duy nh\u1ea5t cho c\u00e1c li\u00ean k\u1ebft ng\u1eafn. C\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng c\u00e2n nh\u1eafc c\u00e1c c\u00f4ng ngh\u1ec7 k\u1ebft n\u1ed1i kh\u00e1c nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-breakout-dac-and-why-breakout-dac-matters\/\">SFF-8472<\/a> (c\u00e1p \u0111\u1ed3ng g\u1eafn tr\u1ef1c ti\u1ebfp) v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/aoc-explained-active-optical-cable-benefits-uses-advancements-guide\/\">AOC<\/a> (c\u00e1p quang ch\u1ee7 \u0111\u1ed9ng). L\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 kho\u1ea3ng c\u00e1ch, chi ph\u00ed, m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 t\u00ednh linh ho\u1ea1t khi tri\u1ec3n khai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c gi\u1ea3i ph\u00e1p n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf m\u1ea1ng hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady nh\u1ea5t.<\/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\/6f4d242525c54614b1822c387e06bf0e.jpg\" alt=\"What SFP Is Required for a Short-Distance Connection?\" class=\"wp-image-3027\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f4d242525c54614b1822c387e06bf0e.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f4d242525c54614b1822c387e06bf0e-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f4d242525c54614b1822c387e06bf0e-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f4d242525c54614b1822c387e06bf0e-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f4d242525c54614b1822c387e06bf0e-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh SFP-SR, DAC v\u00e0 AOC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ba c\u00f4ng ngh\u1ec7 ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn trong m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i l\u00e0: m\u00f4-\u0111un quang SFP-SR, c\u00e1p DAC v\u00e0 c\u00e1p AOC.<\/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>C\u00f4ng ngh\u1ec7<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u01afu \u0111i\u1ec3m<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478232.htm\"><strong>SFP-SR<\/strong><\/a><strong> \/ SFP+<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Direct Attach Copper (DAC)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~300\u2013400 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p quang linh ho\u1ea1t, d\u1ec5 m\u1edf r\u1ed9ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>DAC (\u0110\u1ed3ng n\u1ed1i tr\u1ef1c ti\u1ebfp)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p \u0111\u1ed3ng twinax<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~1\u20137 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed th\u1ea5p, \u0111\u1ed9 tr\u1ec5 r\u1ea5t th\u1ea5p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>AOC (C\u00e1p quang ch\u1ee7 \u0111\u1ed9ng)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p quang t\u00edch h\u1ee3p s\u1eb5n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~100 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nh\u1eb9, d\u1ec5 l\u1eafp \u0111\u1eb7t<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c\u00e1p DAC<\/strong> th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho <strong>v<\/strong>c\u00e1c k\u1ebft n\u1ed1i r\u1ea5t ng\u1eafn trong c\u00f9ng m\u1ed9t t\u1ee7 rack, v\u00ed d\u1ee5 nh\u01b0 li\u00ean k\u1ebft t\u1eeb switch \u0111\u1ebfn m\u00e1y ch\u1ee7. Ch\u00fang c\u00f3 chi ph\u00ed h\u1ee3p l\u00fd v\u00e0 ti\u00eau th\u1ee5 r\u1ea5t \u00edt \u0111i\u1ec7n n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p AOC<\/strong> l\u00e0 c\u00e1c c\u00e1p quang \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ea7u cu\u1ed1i s\u1eb5n, t\u00edch h\u1ee3p s\u1eb5n b\u1ed9 thu ph\u00e1t, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi kho\u1ea3ng c\u00e1ch v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n c\u1ee7a c\u00e1p DAC nh\u01b0ng v\u1eabn n\u1eb1m trong ph\u1ea1m vi m\u1ea1ng ng\u1eafn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c m\u00f4-\u0111un SFP-SR<\/strong>, m\u1eb7t kh\u00e1c, mang l\u1ea1i \u0111\u1ed9 linh ho\u1ea1t cao h\u01a1n v\u00ec b\u1ed9 thu ph\u00e1t quang v\u00e0 c\u00e1p s\u1ee3i quang l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ri\u00eang bi\u1ec7t, cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng l\u1ef1a ch\u1ecdn c\u00e1c \u0111\u1ed9 d\u00e0i c\u00e1p kh\u00e1c nhau ho\u1eb7c thay th\u1ebf c\u00e1c module m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ee3i quang \u0111a mode so v\u1edbi s\u1ee3i quang \u0111\u01a1n mode<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng kh\u00e1c khi l\u1ef1a ch\u1ecdn module SFP cho c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn l\u00e0 <strong>lo\u1ea1i c\u00e1p s\u1ee3i quang<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111a mode (MMF) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng c\u00e1c module SFP kho\u1ea3ng c\u00e1ch ng\u1eafn v\u00ec n\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng b\u0103ng th\u00f4ng r\u1ed9ng tr\u00ean kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/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>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn theo kho\u1ea3ng c\u00e1ch<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i quang \u0111a mode (OM3 \/ OM4)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c module SR kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean t\u1edbi ~300\u2013400 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u00e1p quang \u0111\u01a1n mode (SMF)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c module LR kho\u1ea3ng c\u00e1ch xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn kho\u1ea3ng 10 km ho\u1eb7c h\u01a1n<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111a mode n\u00f3i chung r\u1ebb h\u01a1n v\u00e0 d\u1ec5 l\u1eafp \u0111\u1eb7t h\u01a1n s\u1ee3i quang \u0111\u01a1n mode, do \u0111\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho c\u00e1c k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 doanh nghi\u1ec7p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111\u01a1n mode th\u01b0\u1eddng d\u00e0nh ri\u00eang cho truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa, v\u00ed d\u1ee5 nh\u01b0 c\u00e1c li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng trong khu\u00f4n vi\u00ean tr\u01b0\u1eddng, m\u1ea1ng \u0111\u00f4 th\u1ecb ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng module SFP SR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478232.htm\">C\u00e1c m\u00f4-\u0111un SFP-SR<\/a> r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c li\u00ean k\u1ebft quang kho\u1ea3ng c\u00e1ch ng\u1eafn, n\u01a1i c\u1ea3 b\u0103ng th\u00f4ng cao v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed \u0111\u1ec1u quan tr\u1ecdng. V\u00ec ch\u00fang ho\u1ea1t \u0111\u1ed9ng tr\u00ean s\u1ee3i quang \u0111a mode v\u00e0 y\u00eau c\u1ea7u \u00edt c\u00f4ng su\u1ea5t quang h\u01a1n c\u00e1c module kho\u1ea3ng c\u00e1ch xa, n\u00ean ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>li\u00ean k\u1ebft gi\u1eefa c\u00e1c switch trong trung t\u00e2m d\u1eef li\u1ec7u<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c li\u00ean k\u1ebft s\u1ee3i quang gi\u1eefa c\u00e1c t\u1ee7 rack<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c li\u00ean k\u1ebft n\u00e2ng c\u1ea5p \u1edf l\u1edbp truy c\u1eadp doanh nghi\u1ec7p<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng khu\u00f4n vi\u00ean<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y, c\u00e1c module SR cung c\u1ea5p gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho truy\u1ec1n th\u00f4ng quang kho\u1ea3ng c\u00e1ch ng\u1eafn, mang l\u1ea1i kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i Ethernet t\u1ed1c \u0111\u1ed9 cao m\u00e0 kh\u00f4ng k\u00e8m theo chi ph\u00ed cao h\u01a1n li\u00ean quan \u0111\u1ebfn c\u00e1c b\u1ed9 thu ph\u00e1t quang \u0111\u01a1n mode kho\u1ea3ng c\u00e1ch xa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f So s\u00e1nh module SFP kho\u1ea3ng c\u00e1ch ng\u1eafn v\u00e0 kho\u1ea3ng c\u00e1ch xa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ea1ng quang, c\u00e1c module SFP th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 lo\u1ea1i s\u1ee3i quang. Hai lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 b\u1ed9 thu ph\u00e1t quang kho\u1ea3ng c\u00e1ch ng\u1eafn (SR) v\u00e0 kho\u1ea3ng c\u00e1ch xa (LR), m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai m\u1ea1ng kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao tr\u00ean s\u1ee3i quang \u0111a mode trong trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c m\u1ea1ng doanh nghi\u1ec7p, trong khi c\u00e1c module kho\u1ea3ng c\u00e1ch xa \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch d\u00e0i tr\u00ean s\u1ee3i quang \u0111\u01a1n mode, v\u00ed d\u1ee5 nh\u01b0 c\u00e1c x\u01b0\u01a1ng s\u1ed1ng khu\u00f4n vi\u00ean, m\u1ea1ng \u0111\u00f4 th\u1ecb ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c lo\u1ea1i module n\u00e0y gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p nh\u1ea5t cho y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang v\u00e0 r\u00e0ng bu\u1ed9c chi ph\u00ed c\u1ee7a h\u1ecd.<\/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\/2d65f15ba7194ec4ac6c1c6aac56b09e.jpg\" alt=\"Short Range vs. Long Range SFP Modules\" class=\"wp-image-3028\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2d65f15ba7194ec4ac6c1c6aac56b09e.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2d65f15ba7194ec4ac6c1c6aac56b09e-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2d65f15ba7194ec4ac6c1c6aac56b09e-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2d65f15ba7194ec4ac6c1c6aac56b09e-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2d65f15ba7194ec4ac6c1c6aac56b09e-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 thu ph\u00e1t quang SR so v\u1edbi LR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa b\u1ed9 thu ph\u00e1t quang SR (kho\u1ea3ng c\u00e1ch ng\u1eafn) v\u00e0 LR (kho\u1ea3ng c\u00e1ch xa) n\u1eb1m \u1edf lo\u1ea1i s\u1ee3i quang h\u1ed7 tr\u1ee3, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 c\u00f4ng ngh\u1ec7 quang h\u1ecdc.<\/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>Lo\u1ea1i<\/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><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476073.htm\"><strong>SR<\/strong><\/a><strong> (Ph\u1ea1m vi ng\u1eafn)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Direct Attach Copper (DAC)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100\u2013400 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\"><strong>LR <\/strong><\/a><strong>(Ph\u1ea1m vi xa)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>What Does SFP Stand For?<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>l\u00ean \u0111\u1ebfn 10 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476854.htm\"><strong>ER<\/strong><\/a><strong> \/ <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476089.htm\"><strong>ZR<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>What Does SFP Stand For?<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u201380 km<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module quang SR ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm v\u00e0 s\u1eed d\u1ee5ng s\u1ee3i quang \u0111a mode nh\u01b0 OM3 ho\u1eb7c OM4. Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c li\u00ean k\u1ebft kho\u1ea3ng c\u00e1ch ng\u1eafn b\u00ean trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 t\u00f2a nh\u00e0 doanh nghi\u1ec7p, n\u01a1i c\u00e1c thi\u1ebft b\u1ecb t\u01b0\u01a1ng \u0111\u1ed1i g\u1ea7n nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7t kh\u00e1c, c\u00e1c module LR th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 1310 nm v\u00e0 s\u1eed d\u1ee5ng s\u1ee3i quang \u0111\u01a1n mode \u0111\u1ec3 h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn d\u00e0i h\u01a1n nhi\u1ec1u\u2014th\u01b0\u1eddng l\u00ean \u0111\u1ebfn 10 kil\u00f4m\u00e9t \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng Ethernet ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c module LR y\u00eau c\u1ea7u b\u1ed9 ph\u00e1t quang m\u1ea1nh h\u01a1n v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang \u0111\u01a1n mode, n\u00ean ch\u00fang th\u01b0\u1eddng \u0111\u1eaft h\u01a1n v\u00e0 ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n c\u00e1c module SR.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SFP t\u1ea7m ng\u1eafn so v\u1edbi SFP t\u1ea7m xa<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c thu\u1eadt ng\u1eef \u201ct\u1ea7m ng\u1eafn\u201d v\u00e0 \u201ct\u1ea7m xa\u201d th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng \u0111\u1ec3 m\u00f4 t\u1ea3 danh m\u1ee5c kho\u1ea3ng c\u00e1ch c\u1ee7a c\u00e1c li\u00ean k\u1ebft quang.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/482247.htm\" target=\"_self\"><strong>SFP t\u1ea7m ng\u1eafn<\/strong><\/a><strong> m\u00f4-\u0111un<\/strong> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch ng\u1eafn trong t\u00f2a nh\u00e0 ho\u1eb7c trung t\u00e2m d\u1eef li\u1ec7u. Nh\u1eefng lo\u1ea1i n\u00e0y th\u01b0\u1eddng bao g\u1ed3m c\u00e1c module SR, SX v\u00e0 c\u00e1c module kh\u00e1c d\u1ef1a tr\u00ean s\u1ee3i quang \u0111a mode.<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/475855.htm\" target=\"_self\"><strong>SFP t\u1ea7m xa<\/strong><\/a><strong> m\u00f4-\u0111un<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng s\u1ee3i quang kho\u1ea3ng c\u00e1ch xa, th\u01b0\u1eddng s\u1eed d\u1ee5ng s\u1ee3i quang \u0111\u01a1n mode v\u00e0 m\u1ee9c c\u00f4ng su\u1ea5t quang cao h\u01a1n. Nh\u1eefng lo\u1ea1i n\u00e0y bao g\u1ed3m c\u00e1c b\u1ed9 thu ph\u00e1t LR, ER v\u00e0 ZR \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec5n th\u00f4ng v\u00e0 m\u1ea1ng di\u1ec7n r\u1ed9ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i chung, c\u00e1c b\u1ed9 quang kho\u1ea3ng c\u00e1ch ng\u1eafn mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf cho c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng n\u1ed9i b\u1ed9:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>chi ph\u00ed module 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>c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang \u0111\u01a1n gi\u1ea3n h\u00f3a<\/p><\/li>\n\n\n\n<li><p>hi\u1ec7u n\u0103ng \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec nh\u1eefng l\u00fd do n\u00e0y, c\u00e1c module SR \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho m\u1ea1ng quang kho\u1ea3ng c\u00e1ch ng\u1eafn, trong khi c\u00e1c module LR v\u00e0 c\u00e1c module kho\u1ea3ng c\u00e1ch xa kh\u00e1c \u0111\u01b0\u1ee3c d\u00e0nh ri\u00eang cho c\u00e1c li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng ho\u1eb7c m\u1ea1ng di\u1ec7n r\u1ed9ng, n\u01a1i y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn d\u00e0i h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a module SFP kho\u1ea3ng c\u00e1ch ng\u1eafn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn ng\u1eafn, kh\u1ea3 n\u0103ng b\u0103ng th\u00f4ng cao v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed, c\u00e1c module SFP kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i. Ch\u00fang \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00f9ng m\u1ed9t t\u00f2a nh\u00e0, khu v\u1ef1c trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c d\u00e3y t\u1ee7 rack.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module quang kho\u1ea3ng c\u00e1ch ng\u1eafn cho ph\u00e9p k\u1ebft n\u1ed1i s\u1ee3i quang t\u1ed1c \u0111\u1ed9 cao gi\u1eefa c\u00e1c switch, m\u00e1y ch\u1ee7 v\u00e0 thi\u1ebft b\u1ecb t\u1eadp h\u1ee3p, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p ph\u1ed5 bi\u1ebfn trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng doanh nghi\u1ec7p c\u1ea7n truy\u1ec1n th\u00f4ng n\u1ed9i b\u1ed9 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1bfadb0fa2364da2879fceeba63645b1.jpg\" alt=\"Common Applications of Short Range SFP Modules\" class=\"wp-image-3029\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1bfadb0fa2364da2879fceeba63645b1.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1bfadb0fa2364da2879fceeba63645b1-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1bfadb0fa2364da2879fceeba63645b1-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1bfadb0fa2364da2879fceeba63645b1-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1bfadb0fa2364da2879fceeba63645b1-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>M\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u ki\u1ebfn tr\u00fac leaf\u2013spine<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c li\u00ean k\u1ebft n\u00e2ng c\u1ea5p switch<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>k\u1ebft n\u1ed1i t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ebfn switch<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch m\u1eadt \u0111\u1ed9 cao v\u1edbi \u0111\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 s\u1eed d\u1ee5ng \u0111i\u1ec7n n\u0103ng hi\u1ec7u qu\u1ea3, do \u0111\u00f3 r\u1ea5t l\u00fd t\u01b0\u1edfng cho c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Li\u00ean k\u1ebft n\u1ed9i b\u1ed9 m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn l\u00e0 trong c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u. C\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng d\u1ef1a v\u00e0o ki\u1ebfn tr\u00fac m\u1ea1ng l\u00e1\u2013c\u1ed9t s\u1ed1ng (leaf\u2013spine), trong \u0111\u00f3 nhi\u1ec1u b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau nh\u1eb1m \u0111\u1ea3m b\u1ea3o b\u0103ng th\u00f4ng cao v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y, c\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn (SR) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>k\u1ebft n\u1ed1i t\u1eeb b\u1ed9 chuy\u1ec3n m\u1ea1ch l\u00e1 \u0111\u1ebfn b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u1ed9t s\u1ed1ng<\/strong><\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-tor-top-of-rack-switch\/\" target=\"_blank\" rel=\"\"><strong>\u0111\u1ea7u t\u1ee7 (top-of-rack)<\/strong><\/a><strong> (ToR) k\u1ebft n\u1ed1i l\u00ean (uplinks) c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>c\u00e1c k\u1ebft n\u1ed1i t\u1ed5ng h\u1ee3p t\u1ed1c \u0111\u1ed9 cao<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec kho\u1ea3ng c\u00e1ch v\u1eadt l\u00fd gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch trong m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u th\u01b0\u1eddng d\u01b0\u1edbi v\u00e0i tr\u0103m m\u00e9t, n\u00ean c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc \u0111a ch\u1ebf \u0111\u1ed9 t\u1ea7m ng\u1eafn cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chuy\u1ec3n m\u1ea1ch m\u1ea1ng doanh nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn c\u0169ng \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch m\u1ea1ng doanh nghi\u1ec7p. C\u00e1c t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng l\u1edbn, khu khu\u00f4n vi\u00ean v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng CNTT doanh nghi\u1ec7p th\u01b0\u1eddng y\u00eau c\u1ea7u c\u00e1c k\u1ebft n\u1ed1i s\u1ee3i quang \u0111\u00e1ng tin c\u1eady gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng \u0111\u1eb7t \u1edf c\u00e1c ph\u00f2ng kh\u00e1c nhau ho\u1eb7c c\u00e1c t\u1ee7 thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong doanh nghi\u1ec7p bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>k\u1ebft n\u1ed1i t\u1eeb b\u1ed9 chuy\u1ec3n m\u1ea1ch ph\u00e2n ph\u1ed1i \u0111\u1ebfn b\u1ed9 chuy\u1ec3n m\u1ea1ch truy c\u1eadp<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>k\u1ebft n\u1ed1i m\u1ea1ng t\u1eebng t\u1ea7ng c\u1ee7a t\u00f2a nh\u00e0<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>k\u1ebft n\u1ed1i l\u00ean (uplinks) t\u1eeb c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch truy c\u1eadp \u0111\u1ebfn c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch l\u00f5i<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9 c\u00f9ng c\u00e1c m\u00f4-\u0111un SR, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng ph\u1ea3i ch\u1ecbu chi ph\u00ed cao h\u01a1n li\u00ean quan \u0111\u1ebfn <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/long-distance-transceiver-types-reach-selection-guide\/\">c\u00e1c b\u1ed9 thu ph\u00e1t quang t\u1ea7m xa<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tri\u1ec3n khai t\u1ee7 m\u1eadt \u0111\u1ed9 cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u1ee9ng d\u1ee5ng quan tr\u1ecdng kh\u00e1c c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn l\u00e0 trong c\u00e1c tri\u1ec3n khai t\u1ee7 m\u1eadt \u0111\u1ed9 cao, n\u01a1i nhi\u1ec1u m\u00e1y ch\u1ee7 v\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong c\u00f9ng m\u1ed9t t\u1ee7 ho\u1eb7c d\u00e3y t\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c t\u00ecnh hu\u1ed1ng n\u00e0y, c\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn (SR) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>k\u1ebft n\u1ed1i quang t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ebfn b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c li\u00ean k\u1ebft s\u1ee3i quang gi\u1eefa c\u00e1c t\u1ee7 rack<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>m\u1ea1ng l\u01b0u tr\u1eef b\u0103ng th\u00f4ng cao<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c m\u00f4-\u0111un SR c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p v\u00e0 hi\u1ec7u su\u1ea5t quang h\u1ecdc \u0111\u00e1ng tin c\u1eady, n\u00ean ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng m\u1eadt \u0111\u1ed9 cao, n\u01a1i nhi\u1ec1u c\u1ed5ng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong kh\u00f4ng gian v\u1eadt l\u00fd h\u1ea1n ch\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 SFP t\u1ea7m ng\u1eafn<\/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\/8cda07c993b3473ab7e44da4b7e17c05.jpg\" alt=\"Frequently Asked Questions About Short Range SFP\" class=\"wp-image-3030\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8cda07c993b3473ab7e44da4b7e17c05.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8cda07c993b3473ab7e44da4b7e17c05-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8cda07c993b3473ab7e44da4b7e17c05-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8cda07c993b3473ab7e44da4b7e17c05-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8cda07c993b3473ab7e44da4b7e17c05-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 k\u1ef9 s\u01b0 m\u1ea1ng, chuy\u00ean gia CNTT v\u00e0 ng\u01b0\u1eddi mua th\u01b0\u1eddng \u0111\u1eb7t ra v\u1ec1 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482247.htm\">SFP t\u1ea7m ng\u1eafn<\/a> c\u00e1c m\u00f4-\u0111un. Nh\u1eefng c\u00e2u tr\u1ea3 l\u1eddi n\u00e0y gi\u1ea3i quy\u1ebft c\u00e1c m\u1ed1i quan t\u00e2m th\u1ef1c t\u1ebf khi tri\u1ec3n khai v\u00e0 l\u00e0m r\u00f5 c\u00e1c kh\u00e1i ni\u1ec7m k\u1ef9 thu\u1eadt then ch\u1ed1t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng quang hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea7m ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn th\u01b0\u1eddng h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1eeb 100 m\u00e9t \u0111\u1ebfn 400 m\u00e9t, t\u00f9y thu\u1ed9c v\u00e0o chu\u1ea9n Ethernet v\u00e0 lo\u1ea1i c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\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><strong>10GBASE-SR<\/strong> h\u1ed7 tr\u1ee3 kho\u1ea3ng <strong>300 m tr\u00ean c\u00e1p s\u1ee3i quang OM3<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>10GBASE-SR<\/strong> c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi t\u1ed1i \u0111a <strong>400 m khi s\u1eed d\u1ee5ng c\u00e1p s\u1ee3i quang OM4<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c chu\u1ea9n t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n nh\u01b0 1000BASE-SX c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n tr\u00ean c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9, \u0111\u00f4i khi \u0111\u1ea1t t\u1edbi kho\u1ea3ng 550 m\u00e9t trong \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed9 thu ph\u00e1t quang t\u1ea7m ng\u1eafn l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t quang t\u1ea7m ng\u1eafn l\u00e0 m\u1ed9t m\u00f4-\u0111un truy\u1ec1n th\u00f4ng quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho vi\u1ec7c truy\u1ec1n d\u1eabn s\u1ee3i quang \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn, th\u01b0\u1eddng n\u1eb1m trong c\u00f9ng m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u, t\u00f2a nh\u00e0 ho\u1eb7c m\u1ea1ng khu\u00f4n vi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t quang n\u00e0y th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm v\u00e0 truy\u1ec1n t\u00edn hi\u1ec7u qua c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9, khi\u1ebfn ch\u00fang l\u00fd t\u01b0\u1edfng cho c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng n\u1ed9i b\u1ed9 t\u1ed1c \u0111\u1ed9 cao nh\u01b0 k\u1ebft n\u1ed1i l\u00ean (uplinks) c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4-\u0111un SFP n\u00e0o c\u1ea7n thi\u1ebft cho k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c k\u1ebft n\u1ed1i s\u1ee3i quang kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u1ec1u s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP ho\u1eb7c SFP+ t\u1ea7m ng\u1eafn (SR) k\u1ebft h\u1ee3p v\u1edbi c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9, th\u01b0\u1eddng l\u00e0 OM3 ho\u1eb7c OM4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SR \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho vi\u1ec7c truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch ng\u1eafn v\u00e0 cung c\u1ea5p s\u1ef1 c\u00e2n b\u1eb1ng hi\u1ec7u qu\u1ea3 gi\u1eefa hi\u1ec7u n\u0103ng, chi ph\u00ed v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng\u2014\u0111\u00e2y l\u00e0 l\u00fd do ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng doanh nghi\u1ec7p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SFP l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SFP<\/strong> l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a <strong>Typical Medium<\/strong>, m\u1ed9t giao di\u1ec7n thu ph\u00e1t quang nh\u1ecf g\u1ecdn <strong>c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng (hot-swappable)<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 b\u1ed9 chuy\u1ec3n m\u1ea1ch Ethernet, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-nic-network-interface-card\/\">card giao di\u1ec7n m\u1ea1ng<\/a> (NICs).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u00eau chu\u1ea9n SFP cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng h\u1ed7 tr\u1ee3 c\u00e1c lo\u1ea1i k\u1ebft n\u1ed1i kh\u00e1c nhau b\u1eb1ng c\u00e1ch c\u1eafm v\u00e0o c\u00e1c m\u00f4-\u0111un kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 c\u00e1c b\u1ed9 thu ph\u00e1t quang s\u1ee3i quang ho\u1eb7c c\u00e1c m\u00f4-\u0111un d\u1ef1a tr\u00ean c\u00e1p \u0111\u1ed3ng, t\u00f9y thu\u1ed9c v\u00e0o ph\u01b0\u01a1ng ti\u1ec7n m\u1ea1ng y\u00eau c\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP t\u1ea7m ng\u1eafn v\u00e0 SFP t\u1ea7m xa l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn v\u00e0 t\u1ea7m xa l\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 lo\u1ea1i s\u1ee3i quang m\u00e0 ch\u00fang h\u1ed7 tr\u1ee3.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn<\/strong> s\u1eed d\u1ee5ng <strong>c\u00e1p quang \u0111a mode<\/strong> v\u00e0 th\u01b0\u1eddng h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch <strong>d\u01b0\u1edbi v\u00e0i tr\u0103m m\u00e9t<\/strong>, khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p cho c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng n\u1ed9i b\u1ed9.<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c m\u00f4-\u0111un SFP t\u1ea7m xa<\/strong> s\u1eed d\u1ee5ng <strong>s\u1ee3i quang \u0111\u01a1n mode<\/strong> v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho <strong>truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch xa<\/strong>, th\u01b0\u1eddng \u0111\u1ea1t t\u1edbi <strong>v\u00e0i kil\u00f4m\u00e9t tr\u1edf l\u00ean<\/strong>.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c m\u00f4-\u0111un t\u1ea7m ng\u1eafn y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t quang th\u1ea5p h\u01a1n v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang \u0111\u01a1n gi\u1ea3n h\u01a1n, n\u00ean ch\u00fang n\u00f3i chung <strong>ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng h\u01a1n<\/strong> \u0111\u1ed1i v\u1edbi c\u00e1c tri\u1ec3n khai kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25b6\ufe0f L\u1ef1a ch\u1ecdn m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn ph\u00f9 h\u1ee3p cho m\u1ea1ng c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn th\u00edch h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c k\u1ebft n\u1ed1i s\u1ee3i quang \u0111\u00e1ng tin c\u1eady v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed trong c\u00e1c m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i. Nh\u01b0 \u0111\u00e3 tr\u00ecnh b\u00e0y trong h\u01b0\u1edbng d\u1eabn n\u00e0y, c\u00e1c m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn (SR) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho vi\u1ec7c truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch ng\u1eafn tr\u00ean c\u00e1p s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9, th\u01b0\u1eddng h\u1ed7 tr\u1ee3 c\u00e1c k\u1ebft n\u1ed1i t\u1eeb v\u00e0i ch\u1ee5c m\u00e9t \u0111\u1ebfn v\u00e0i tr\u0103m m\u00e9t, t\u00f9y thu\u1ed9c v\u00e0o chu\u1ea9n Ethernet v\u00e0 lo\u1ea1i c\u00e1p s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do chi ph\u00ed th\u1ea5p, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p v\u00e0 m\u1eadt \u0111\u1ed9 c\u1ed5ng cao, c\u00e1c b\u1ed9 thu ph\u00e1t quang t\u1ea7m ng\u1eafn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong trung t\u00e2m d\u1eef li\u1ec7u, m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch doanh nghi\u1ec7p v\u00e0 m\u1ea1ng khu\u00f4n vi\u00ean. Khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1p quang \u0111a mode ph\u00f9 h\u1ee3p\u2014nh\u01b0 OM3 ho\u1eb7c OM4\u2014ch\u00fang cung c\u1ea5p k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao \u1ed5n \u0111\u1ecbnh cho c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u01b0 li\u00ean k\u1ebft l\u00ean (uplink) gi\u1eefa c\u00e1c switch, k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7 v\u00e0 li\u00ean k\u1ebft gi\u1eefa c\u00e1c gi\u00e1 \u0111\u1ee1 (rack-to-rack).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u1ea3o lu\u1eadn th\u1ef1c t\u1ebf c\u1ee7a k\u1ef9 s\u01b0 m\u1ea1ng v\u1ec1 b\u1ed9 thu ph\u00e1t quang t\u1ea7m ng\u1eafn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf, nhi\u1ec1u k\u1ef9 s\u01b0 m\u1ea1ng chia s\u1ebb kinh nghi\u1ec7m c\u1ee7a h\u1ecd v\u1ec1 c\u00e1c module SFP t\u1ea7m ng\u1eafn trong c\u00e1c c\u1ed9ng \u0111\u1ed3ng k\u1ef9 thu\u1eadt v\u00e0 di\u1ec5n \u0111\u00e0n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, c\u00e1c k\u1ef9 s\u01b0 trong c\u00e1c di\u1ec5n \u0111\u00e0n m\u1ea1ng \u0111\u00e3 th\u1ea3o lu\u1eadn xem li\u1ec7u m\u1ed9t module SFP t\u1ea7m ng\u1eafn (SR) c\u00f3 kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn 300 m\u00e9t c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v\u1edbi c\u00e1p r\u1ea5t ng\u1eafn, ch\u1eb3ng h\u1ea1n nh\u01b0 2 m\u00e9t hay kh\u00f4ng. C\u00e1c chuy\u00ean gia gi\u00e0u kinh nghi\u1ec7m th\u01b0\u1eddng x\u00e1c nh\u1eadn r\u1eb1ng \u0111i\u1ec1u n\u00e0y l\u00e0 b\u00ecnh th\u01b0\u1eddng v\u00e0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, \u0111\u1eb7c bi\u1ec7t trong trung t\u00e2m d\u1eef li\u1ec7u n\u01a1i c\u00e1c thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u1eb7t r\u1ea5t g\u1ea7n nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t ch\u1ee7 \u0111\u1ec1 kh\u00e1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn l\u00e0 li\u1ec7u c\u00e1c module quang c\u00f3 y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch truy\u1ec1n t\u1ed1i thi\u1ec3u hay kh\u00f4ng. Trong h\u1ea7u h\u1ebft c\u00e1c chu\u1ea9n quang Ethernet, kh\u00f4ng c\u00f3 y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u nghi\u00eam ng\u1eb7t, ngh\u0129a l\u00e0 c\u00e1c li\u00ean k\u1ebft c\u00e1p quang ng\u1eafn th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u1ea7n suy hao quang h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng cu\u1ed9c th\u1ea3o lu\u1eadn th\u1ef1c t\u1ebf n\u00e0y th\u01b0\u1eddng t\u1eadp trung v\u00e0o c\u00e1c c\u00e2u h\u1ecfi k\u1ef9 thu\u1eadt th\u1ef1c ti\u1ec5n, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u00e2n nh\u1eafc kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u \u0111\u1ed1i v\u1edbi c\u00e1c module quang<\/p><\/li>\n\n\n\n<li><p>l\u1ef1a ch\u1ecdn gi\u1eefa <strong>quang h\u1ecdc SR v\u00e0 c\u00e1p DAC<\/strong> cho c\u00e1c li\u00ean k\u1ebft ng\u1eafn<\/p><\/li>\n\n\n\n<li><p><strong>kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb m\u1ea1ng kh\u00e1c nhau<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng kinh nghi\u1ec7m tri\u1ec3n khai th\u1ef1c t\u1ebf n\u00e0y c\u00f3 th\u1ec3 gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t h\u01a1n khi l\u1ef1a ch\u1ecdn c\u00e1c module quang cho c\u00e1c k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn.<\/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\/6194a86c51684c4ea06006541979a6d5.jpg\" alt=\"Choosing the Right Short Range SFP Module for Your Network\" class=\"wp-image-3031\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6194a86c51684c4ea06006541979a6d5.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6194a86c51684c4ea06006541979a6d5-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6194a86c51684c4ea06006541979a6d5-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6194a86c51684c4ea06006541979a6d5-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6194a86c51684c4ea06006541979a6d5-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u00e1m ph\u00e1 c\u00e1c module SFP t\u1ea7m ng\u1eafn t\u1ea1i C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang l\u00ean k\u1ebf ho\u1ea1ch tri\u1ec3n khai c\u00e1c k\u1ebft n\u1ed1i quang t\u1ea7m ng\u1eafn trong trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng doanh nghi\u1ec7p ho\u1eb7c m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch m\u1eadt \u0111\u1ed9 cao, vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c b\u1ed9 thu ph\u00e1t ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady m\u1ea1ng l\u00e2u d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i LINK-PP, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 nhi\u1ec1u lo\u1ea1i module thu ph\u00e1t SFP v\u00e0 SFP+ \u0111\u00e1ng tin c\u1eady, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho c\u00e1c m\u1ea1ng Ethernet hi\u1ec7n \u0111\u1ea1i. C\u00e1c module n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 truy\u1ec1n th\u00f4ng quang t\u1ea7m ng\u1eafn \u1ed5n \u0111\u1ecbnh, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch m\u1ea1nh m\u1ebd v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng m\u1ea1ng h\u00e0ng \u0111\u1ea7u v\u00e0 hi\u1ec7u su\u1ea5t nh\u1ea5t qu\u00e1n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e2y d\u1ef1ng m\u1ea1ng l\u01b0\u1edbi \u0111\u00e1ng tin c\u1eady v\u00e0 s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai c\u00f9ng LINK-PP. <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a> \u0111\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c module SFP t\u1ea7m ng\u1eafn s\u1eb5n c\u00f3, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn t\u01b0\u01a1ng th\u00edch, \u0111\u1ed3ng th\u1eddi t\u00ecm ra gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p cho l\u1ea7n tri\u1ec3n khai m\u1ea1ng ti\u1ebfp theo c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u m\u00f4-\u0111un SFP t\u1ea7m ng\u1eafn l\u00e0 g\u00ec, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, lo\u1ea1i c\u00e1p quang s\u1eed d\u1ee5ng v\u00e0 c\u00e1ch ch\u1ecdn m\u00f4-\u0111un SFP SR ph\u00f9 h\u1ee3p cho k\u1ebft n\u1ed1i trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng doanh nghi\u1ec7p.<\/p>","protected":false},"author":1,"featured_media":3032,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[14,15,26],"class_list":["post-3033","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-10g-sfp-transceivers","tag-link-pp-1g-sfp-modules","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3033","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=3033"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3033\/revisions"}],"predecessor-version":[{"id":10745,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3033\/revisions\/10745"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3032"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3033"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3033"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3033"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}