{"id":4274,"date":"2025-09-19T11:12:00","date_gmt":"2025-09-19T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-dsl-digital-subscriber-line\/"},"modified":"2026-06-22T06:55:50","modified_gmt":"2026-06-22T06:55:50","slug":"what-is-dsl-digital-subscriber-line","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-dsl-digital-subscriber-line","title":{"rendered":"H\u01b0\u1edbng D\u1eabn \u0110\u1ea7y \u0110\u1ee7 V\u1ec1 Internet DSL (\u0110\u01b0\u1eddng D\u00e2y Thu\u00ea Bao S\u1ed1)"},"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\/fdf8ae453588444c85536e96d9bcd747.webp\" alt=\"What is DSL(Digital Subscriber Line)?\" class=\"wp-image-4270\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdf8ae453588444c85536e96d9bcd747.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdf8ae453588444c85536e96d9bcd747-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdf8ae453588444c85536e96d9bcd747-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdf8ae453588444c85536e96d9bcd747-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdf8ae453588444c85536e96d9bcd747-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nhi\u1ec1u th\u1eadp k\u1ef7, <strong>DSL (\u0110\u01b0\u1eddng D\u00e2y Thu\u00ea Bao S\u1ed1)<\/strong> \u0111\u00e3 l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 truy c\u1eadp b\u0103ng th\u00f4ng r\u1ed9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t, k\u1ebft n\u1ed1i h\u00e0ng tri\u1ec7u h\u1ed9 gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. B\u1eb1ng c\u00e1ch truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao qua c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed3ng th\u00f4ng th\u01b0\u1eddng, DSL \u0111\u00e3 gi\u00fap thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa internet quay s\u1ed1 v\u00e0 c\u00e1p quang hi\u1ec7n \u0111\u1ea1i. Nh\u01b0ng ch\u00ednh x\u00e1c th\u00ec DSL l\u00e0 g\u00ec, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng ra sao, v\u00e0 nh\u1eefng \u01b0u \u0111i\u1ec3m c\u0169ng nh\u01b0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a n\u00f3 l\u00e0 g\u00ec? B\u00e0i vi\u1ebft n\u00e0y kh\u00e1m ph\u00e1 chi ti\u1ebft v\u1ec1 DSL, t\u1eeb ki\u1ebfn tr\u00fac v\u00e0 c\u00e1c lo\u1ea1i h\u00ecnh \u0111\u1ebfn vai tr\u00f2 c\u1ee7a n\u00f3 trong b\u1ed1i c\u1ea3nh b\u0103ng th\u00f4ng r\u1ed9ng hi\u1ec7n nay.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 DSL l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DSL (\u0110\u01b0\u1eddng D\u00e2y Thu\u00ea Bao S\u1ed1)<\/strong> l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 cung c\u1ea5p <strong>truy c\u1eadp internet b\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed3ng ti\u00eau chu\u1ea9n<\/strong>. Kh\u00e1c v\u1edbi k\u1ebft n\u1ed1i quay s\u1ed1, DSL s\u1eed d\u1ee5ng c\u00e1c d\u1ea3i t\u1ea7n s\u1ed1 cao h\u01a1n tr\u00ean c\u1eb7p d\u00e2y \u0111\u1ed3ng, cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng g\u00e2y nhi\u1ec5u cu\u1ed9c g\u1ecdi tho\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft n\u1ed1i DSL \u201clu\u00f4n b\u1eadt\u201d, ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n quay s\u1ed1 m\u1ed7i l\u1ea7n k\u1ebft n\u1ed1i, v\u00e0 t\u1ed1c \u0111\u1ed9 cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi k\u1ebft n\u1ed1i quay s\u1ed1 c\u1ed5 \u0111i\u1ec3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DSL<\/h2>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>Ph\u00e2n chia t\u1ea7n s\u1ed1 tr\u00ean \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i:<\/strong> \u0110\u01b0\u1eddng d\u00e2y \u0111\u1ed3ng \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c d\u1ea3i t\u1ea7n s\u1ed1 ri\u00eang bi\u1ec7t \u2014 t\u1ea7n s\u1ed1 th\u1ea5p d\u00e0nh cho tho\u1ea1i v\u00e0 t\u1ea7n s\u1ed1 cao h\u01a1n d\u00e0nh cho d\u1eef li\u1ec7u.<\/p><\/li><li><p><strong>B\u1ed9 \u0111i\u1ec1u h\u1ee3p DSL (DSL Modem):<\/strong> T\u1ea1i ph\u00eda kh\u00e1ch h\u00e0ng, b\u1ed9 \u0111i\u1ec1u h\u1ee3p DSL t\u00e1ch t\u00edn hi\u1ec7u d\u1eef li\u1ec7u v\u00e0 tho\u1ea1i, \u0111\u1ed3ng th\u1eddi k\u1ebft n\u1ed1i ng\u01b0\u1eddi d\u00f9ng v\u1edbi internet.<\/p><\/li><li><p><strong>DSLAM (B\u1ed9 \u0111a h\u1ee3p truy c\u1eadp \u0111\u01b0\u1eddng d\u00e2y thu\u00ea bao s\u1ed1):<\/strong> T\u1ea1i t\u1ed5ng \u0111\u00e0i ho\u1eb7c t\u1ee7 c\u00e1p c\u1ee7a nh\u00e0 cung c\u1ea5p vi\u1ec5n th\u00f4ng, DSLAM t\u1eadp h\u1ee3p nhi\u1ec1u k\u1ebft n\u1ed1i DSL v\u00e0 li\u00ean k\u1ebft ch\u00fang v\u1edbi m\u1ea1ng l\u00f5i b\u0103ng th\u00f4ng r\u1ed9ng.<\/p><\/li><li><p><strong>K\u1ebft n\u1ed1i lu\u00f4n b\u1eadt:<\/strong> V\u00ec tho\u1ea1i v\u00e0 d\u1eef li\u1ec7u s\u1eed d\u1ee5ng c\u00e1c d\u1ea3i t\u1ea7n s\u1ed1 kh\u00e1c nhau, c\u1ea3 hai c\u00f3 th\u1ec3 ch\u1ea1y \u0111\u1ed3ng th\u1eddi m\u00e0 kh\u00f4ng xung \u0111\u1ed9t.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 C\u00e1c lo\u1ea1i DSL<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7f46575859e74fe9824e5b4b01f2c7fa.webp\" alt=\"Types of DSL\" class=\"wp-image-4271\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7f46575859e74fe9824e5b4b01f2c7fa.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7f46575859e74fe9824e5b4b01f2c7fa-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7f46575859e74fe9824e5b4b01f2c7fa-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7f46575859e74fe9824e5b4b01f2c7fa-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7f46575859e74fe9824e5b4b01f2c7fa-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">DSL l\u00e0 m\u1ed9t <strong>h\u1ecd c\u00f4ng ngh\u1ec7<\/strong>, bao g\u1ed3m nhi\u1ec1u bi\u1ebfn th\u1ec3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c nhau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>ADSL (DSL b\u1ea5t \u0111\u1ed1i x\u1ee9ng):<\/strong><\/p><ul><li><p>T\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng cao h\u01a1n t\u1ed1c \u0111\u1ed9 t\u1ea3i l\u00ean.<\/p><\/li><li><p>T\u1ed1c \u0111\u1ed9 \u0111i\u1ec3n h\u00ecnh: 1\u201324 Mbps t\u1ea3i xu\u1ed1ng \/ t\u1ed1i \u0111a 3 Mbps t\u1ea3i l\u00ean.<\/p><\/li><li><p>Ph\u00f9 h\u1ee3p nh\u1ea5t cho h\u1ed9 gia \u0111\u00ecnh, n\u01a1i nhu c\u1ea7u t\u1ea3i xu\u1ed1ng (xem ph\u00e1t tr\u1ef1c tuy\u1ebfn, duy\u1ec7t web) v\u01b0\u1ee3t tr\u1ed9i h\u01a1n t\u1ea3i l\u00ean.<\/p><\/li><\/ul><\/li><li><p><strong>SDSL (DSL \u0111\u1ed1i x\u1ee9ng):<\/strong><\/p><ul><li><p>T\u1ed1c \u0111\u1ed9 t\u1ea3i l\u00ean v\u00e0 t\u1ea3i xu\u1ed1ng b\u1eb1ng nhau.<\/p><\/li><li><p>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p y\u00eau c\u1ea7u truy\u1ec1n d\u1eef li\u1ec7u hai chi\u1ec1u \u1ed5n \u0111\u1ecbnh.<\/p><\/li><\/ul><\/li><li><p><strong>VDSL (DSL t\u1ed1c \u0111\u1ed9 bit r\u1ea5t cao):<\/strong><\/p><ul><li><p>Nhanh h\u01a1n nhi\u1ec1u so v\u1edbi ADSL, \u0111\u1eb7c bi\u1ec7t \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p><\/li><li><p>VDSL2 c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 100\u2013300 Mbps trong \u0111i\u1ec1u ki\u1ec7n l\u00fd t\u01b0\u1edfng.<\/p><\/li><li><p>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c m\u1ea1ng <strong>FTTC (C\u00e1p quang \u0111\u1ebfn \u0111i\u1ec3m ti\u1ebfp c\u1eadn)<\/strong> , n\u01a1i c\u00e1p quang k\u00e9o \u0111\u1ebfn t\u1ee7 c\u00e1p v\u00e0 DSL \u0111\u1ea3m nhi\u1ec7m \u0111o\u1ea1n cu\u1ed1i c\u00f9ng.<\/p><\/li><\/ul><\/li><li><p><strong>G.fast:<\/strong><\/p><ul><li><p>C\u00f4ng ngh\u1ec7 DSL th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/p><\/li><li><p>C\u00f3 th\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 1 Gbps tr\u00ean c\u00e1c \u0111o\u1ea1n d\u00e2y \u0111\u1ed3ng ng\u1eafn.<\/p><\/li><li><p>\u0110\u01b0\u1ee3c xem l\u00e0 gi\u1ea3i ph\u00e1p chuy\u1ec3n ti\u1ebfp t\u1ea1i c\u00e1c khu v\u1ef1c ch\u01b0a \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 l\u00ean c\u00e1p quang.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 So s\u00e1nh DSL v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 b\u0103ng th\u00f4ng r\u1ed9ng kh\u00e1c<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 133px;\"\/><col style=\"width: 177px;\"\/><col style=\"width: 163px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p>C\u00f4ng ngh\u1ec7<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"177\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"163\"><p>T\u1ed1c \u0111\u1ed9 \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1i \u01b0u<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><strong>DSL<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"177\"><p>\u0110\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"163\"><p>1\u2013100 Mbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Khu v\u1ef1c c\u00f3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1ed3ng hi\u1ec7n h\u1eefu<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><strong>Truy\u1ec1n h\u00ecnh c\u00e1p (Cable)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"177\"><p>C\u00e1p \u0111\u1ed3ng tr\u1ee5c<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"163\"><p>50 Mbps\u20131 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u0103ng th\u00f4ng r\u1ed9ng \u0111\u00f4 th\u1ecb &amp; ngo\u1ea1i \u00f4<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-fttc-fiber-to-the-curb\/\"><strong>FTTC<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"177\"><p>C\u00e1p quang + \u0111\u1ed3ng (VDSL)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"163\"><p>30\u2013300 Mbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Con \u0111\u01b0\u1eddng n\u00e2ng c\u1ea5p hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-ftth-fiber-to-the-home\/\"><strong>FTTH<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"177\"><p>C\u00e1p quang \u0111\u1ebfn t\u1eadn nh\u00e0 (Fiber to the home)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"163\"><p>Tr\u00ean 1 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u1ea3i ph\u00e1p t\u01b0\u01a1ng lai, t\u1ed1c \u0111\u1ed9 cao cho h\u1ed9 gia \u0111\u00ecnh\/doanh nghi\u1ec7p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"133\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-fwa-fixed-wireless-access\/\"><strong>Truy c\u1eadp kh\u00f4ng d\u00e2y c\u1ed1 \u0111\u1ecbnh (FWA)<\/strong><\/a><strong>\/5G<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"177\"><p>Kh\u00f4ng d\u00e2y<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"163\"><p>50 Mbps\u20131 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Khu v\u1ef1c n\u00f4ng th\u00f4n ho\u1eb7c v\u00f9ng s\u00e2u v\u00f9ng xa<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \u01afu \u0111i\u1ec3m c\u1ee7a DSL<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Ph\u1ed5 bi\u1ebfn r\u1ed9ng r\u00e3i:<\/strong> S\u1eed d\u1ee5ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n tho\u1ea1i hi\u1ec7n c\u00f3.<\/p><\/li><li><p><strong>Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed:<\/strong> Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t c\u00e1p quang m\u1edbi.<\/p><\/li><li><p><strong>K\u1ebft n\u1ed1i lu\u00f4n b\u1eadt:<\/strong> Kh\u00f4ng c\u1ea7n quay s\u1ed1 m\u1ed7i l\u1ea7n k\u1ebft n\u1ed1i, kh\u00e1c v\u1edbi k\u1ebft n\u1ed1i quay s\u1ed1.<\/p><\/li><li><p><strong>T\u1ed1t h\u01a1n k\u1ebft n\u1ed1i quay s\u1ed1 c\u1ed5 \u0111i\u1ec3n:<\/strong> T\u1ed1c \u0111\u1ed9 cao h\u01a1n \u0111\u00e1ng k\u1ec3.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 H\u1ea1n ch\u1ebf c\u1ee7a DSL<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Nh\u1ea1y c\u1ea3m v\u1edbi kho\u1ea3ng c\u00e1ch:<\/strong> T\u1ed1c \u0111\u1ed9 gi\u1ea3m khi kho\u1ea3ng c\u00e1ch t\u1eeb t\u1ed5ng \u0111\u00e0i ho\u1eb7c t\u1ee7 c\u00e1p t\u0103ng l\u00ean.<\/p><\/li><li><p><strong>B\u0103ng th\u00f4ng h\u1ea1n ch\u1ebf:<\/strong> Kh\u00f4ng th\u1ec3 s\u00e1nh \u0111\u01b0\u1ee3c v\u1edbi c\u00e1p ho\u1eb7c c\u00e1p quang v\u1ec1 dung l\u01b0\u1ee3ng.<\/p><\/li><li><p><strong>Ph\u1ee5 thu\u1ed9c v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng:<\/strong> Hi\u1ec7u su\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111\u1ed3ng.<\/p><\/li><li><p><strong>\u0110ang b\u1ecb lo\u1ea1i b\u1ecf d\u1ea7n:<\/strong> Nhi\u1ec1u khu v\u1ef1c \u0111ang ng\u1eebng tri\u1ec3n khai DSL \u0111\u1ec3 thay th\u1ebf b\u1eb1ng c\u00e1p quang to\u00e0n ph\u1ea7n ho\u1eb7c c\u00e1c gi\u1ea3i ph\u00e1p kh\u00f4ng d\u00e2y.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 DSL trong c\u00e1c tri\u1ec3n khai FTTC<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In <strong>M\u1ea1ng FTTC<\/strong>, c\u00e1p quang k\u00e9o \u0111\u1ebfn t\u1ee7 c\u00e1p tr\u00ean v\u1ec9a h\u00e8, n\u01a1i m\u1ed9t <strong>DSLAM ho\u1eb7c <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-onu-and-why-it-matters-for-your-internet-connection\/\"><strong>ONU<\/strong><\/a> ph\u00e2n ph\u1ed1i internet \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i th\u00f4ng qua VDSL ho\u1eb7c G.fast tr\u00ean \u0111\u01b0\u1eddng d\u00e2y \u0111\u1ed3ng. M\u00f4 h\u00ecnh lai n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 cung c\u1ea5p vi\u1ec5n th\u00f4ng cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao h\u01a1n trong khi tr\u00ec ho\u00e3n chi ph\u00ed tri\u1ec3n khai c\u00e1p quang to\u00e0n ph\u1ea7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 T\u01b0\u01a1ng lai c\u1ee7a DSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 DSL \u0111\u00e3 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n b\u0103ng th\u00f4ng r\u1ed9ng, nh\u01b0ng nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a n\u00f3 ng\u00e0y c\u00e0ng r\u00f5 r\u00e0ng h\u01a1n trong k\u1ef7 nguy\u00ean gigabit. Nhi\u1ec1u qu\u1ed1c gia \u0111ang d\u1ea7n thay th\u1ebf DSL b\u1eb1ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-ftth-fiber-to-the-home\/\"><strong>FTTH (C\u00e1p quang \u0111\u1ebfn t\u1eadn nh\u00e0)<\/strong><\/a> and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-fwa-fixed-wireless-access\/\"><strong>Truy c\u1eadp kh\u00f4ng d\u00e2y c\u1ed1 \u0111\u1ecbnh (FWA)<\/strong><\/a>. Tuy nhi\u00ean, DSL v\u1eabn gi\u1eef vai tr\u00f2 quan tr\u1ecdng t\u1ea1i c\u00e1c khu v\u1ef1c ch\u01b0a th\u1ec3 tri\u1ec3n khai c\u00e1p quang v\u00ec l\u00fd do kinh t\u1ebf, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t c\u00f4ng ngh\u1ec7 chuy\u1ec3n ti\u1ebfp.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DSL (\u0110\u01b0\u1eddng D\u00e2y Thu\u00ea Bao S\u1ed1)<\/strong> \u0111\u00e3 l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 then ch\u1ed1t trong vi\u1ec7c m\u1edf r\u1ed9ng truy c\u1eadp b\u0103ng th\u00f4ng r\u1ed9ng tr\u00ean to\u00e0n c\u1ea7u. Nh\u1edd khai th\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed3ng hi\u1ec7n c\u00f3, DSL \u0111\u00e3 mang l\u1ea1i d\u1ecbch v\u1ee5 internet lu\u00f4n b\u1eadt v\u1edbi chi ph\u00ed ph\u1ea3i ch\u0103ng cho h\u00e0ng tri\u1ec7u ng\u01b0\u1eddi d\u00f9ng. M\u1eb7c d\u00f9 t\u01b0\u01a1ng lai c\u1ee7a DSL b\u1ecb gi\u1edbi h\u1ea1n so v\u1edbi c\u00e1p quang v\u00e0 5G, vi\u1ec7c hi\u1ec3u r\u00f5 DSL v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 c\u1ee7a n\u00f3 (ADSL, VDSL, G.fast) l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 n\u1eafm b\u1eaft qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 b\u0103ng th\u00f4ng r\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49<br> <strong>Kh\u00e1m ph\u00e1 c\u00e1c <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>\u0110\u1ea7u n\u1ed1i RJ45<\/strong><\/a><strong>, <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>Bi\u1ebfn \u00e1p LAN<\/strong><\/a><strong>, and <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>B\u1ed9 thu ph\u00e1t quang<\/strong><\/a>c\u1ee7a LINK-PP \u2014 c\u00e1c th\u00e0nh ph\u1ea7n hi\u1ec7u n\u0103ng cao h\u1ed7 tr\u1ee3 tri\u1ec3n khai DSL, FTTC v\u00e0 b\u0103ng th\u00f4ng r\u1ed9ng th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/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\/bca91eb701d5419da4f3f2b4c2aa0478.webp\" alt=\"LINK-PP\u2019s RJ45 Connectors, LAN Transformers, and Optical Transceivers\" class=\"wp-image-4272\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca91eb701d5419da4f3f2b4c2aa0478.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca91eb701d5419da4f3f2b4c2aa0478-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca91eb701d5419da4f3f2b4c2aa0478-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca91eb701d5419da4f3f2b4c2aa0478-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca91eb701d5419da4f3f2b4c2aa0478-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 T\u00e0i nguy\u00ean li\u00ean quan<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-fttc-fiber-to-the-curb\/\">FTTC (C\u00e1p quang \u0111\u1ebfn \u0111i\u1ec3m ti\u1ebfp c\u1eadn) l\u00e0 g\u00ec?<\/a> \u2013 Gi\u1ea3i th\u00edch v\u1ec1 b\u0103ng th\u00f4ng r\u1ed9ng lai gi\u1eefa c\u00e1p quang v\u00e0 \u0111\u1ed3ng<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-the-difference-between-fttb-and-ftth\/\">So s\u00e1nh FTTH v\u00e0 FTTB: Hi\u1ec3u r\u00f5 c\u00e1c m\u00f4 h\u00ecnh truy c\u1eadp c\u00e1p quang<\/a><\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-optical-transceivers-drive-broadband-networks\/\">C\u00e1ch b\u1ed9 thu ph\u00e1t quang v\u1eadn h\u00e0nh m\u1ea1ng b\u0103ng th\u00f4ng r\u1ed9ng<\/a><\/p><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u DSL (\u0110\u01b0\u1eddng d\u00e2y thu\u00ea bao k\u1ef9 thu\u1eadt s\u1ed1) l\u00e0 g\u00ec, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ADSL, VDSL c\u00f9ng c\u00e1c lo\u1ea1i kh\u00e1c. Kh\u00e1m ph\u00e1 nh\u1eefng \u01b0u \u0111i\u1ec3m, h\u1ea1n ch\u1ebf v\u00e0 t\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 DSL trong truy c\u1eadp b\u0103ng th\u00f4ng r\u1ed9ng.<\/p>","protected":false},"author":1,"featured_media":4273,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[22,23,26],"class_list":["post-4274","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-integrated-rj45-connectors","tag-link-pp-lan-transformers","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4274","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=4274"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4274\/revisions"}],"predecessor-version":[{"id":11100,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4274\/revisions\/11100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4273"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}