{"id":4682,"date":"2025-10-17T11:12:00","date_gmt":"2025-10-17T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/optical-time-domain-reflectometer-fiber-fault-detection-guide\/"},"modified":"2026-06-22T06:15:38","modified_gmt":"2026-06-22T06:15:38","slug":"optical-time-domain-reflectometer-fiber-fault-detection-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/optical-time-domain-reflectometer-fiber-fault-detection-guide","title":{"rendered":"L\u00e0m Ch\u1ee7 Vi\u1ec7c Ki\u1ec3m Tra S\u1ee3i Quang: H\u01b0\u1edbng D\u1eabn T\u1ed5ng Quan V\u1ec1 M\u00e1y \u0110o Ph\u1ea3n X\u1ea1 Th\u1eddi Gian Quang (OTDR)"},"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\/2dbd8332eca74570923e4f4bb2c2e737.webp\" alt=\"Optical Time-Domain Reflectometer (OTDR)\" class=\"wp-image-4679\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2dbd8332eca74570923e4f4bb2c2e737.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2dbd8332eca74570923e4f4bb2c2e737-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2dbd8332eca74570923e4f4bb2c2e737-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2dbd8332eca74570923e4f4bb2c2e737-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2dbd8332eca74570923e4f4bb2c2e737-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1 t\u1ed1c \u0111\u1ed9 cao ng\u00e0y nay, c\u00e1c m\u1ea1ng c\u00e1p quang \u0111\u00e1ng tin c\u1eady l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a vi\u1ec5n th\u00f4ng, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng 5G. Nh\u01b0ng l\u00e0m th\u1ebf n\u00e0o c\u00e1c k\u1ef9 s\u01b0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng nh\u1eefng m\u1ea1ng n\u00e0y kh\u00f4ng c\u00f3 l\u1ed7i v\u00e0 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a? H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 <strong>M\u00e1y \u0111o ph\u1ea3n x\u1ea1 th\u1eddi gian quang (OTDR)<\/strong>\u2014m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n, ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-optic-cable-what-it-is-and-how-it-works-explained\/\"><strong>c\u00e1p quang<\/strong><\/a>. H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111i s\u00e2u v\u00e0o c\u00f4ng ngh\u1ec7 OTDR, c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 v\u00e0 c\u00e1ch t\u00edch h\u1ee3p v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n hi\u1ec7n \u0111\u1ea1i nh\u01b0 <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>. D\u00f9 b\u1ea1n l\u00e0 k\u1ef9 s\u01b0 m\u1ea1ng hay ng\u01b0\u1eddi \u0111am m\u00ea c\u00f4ng ngh\u1ec7, b\u1ea1n s\u1ebd kh\u00e1m ph\u00e1 ra l\u00fd do v\u00ec sao OTDR l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u su\u1ea5t. C\u00f9ng kh\u00e1m ph\u00e1 chi ti\u1ebft v\u1ec1 thi\u1ebft b\u1ecb quan tr\u1ecdng n\u00e0y!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc T\u00f3m t\u1eaft tr\u1ecdng t\u00e2m<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t <strong>OTDR<\/strong> r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m tra c\u00e1p quang. N\u00f3 gi\u00fap ph\u00e1t hi\u1ec7n \u0111i\u1ec3m \u0111\u1ee9t, hi\u1ec3n th\u1ecb chi\u1ec1u d\u00e0i c\u00e1p v\u00e0 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng k\u1ebft n\u1ed1i.<\/p><\/li><li><p>Vi\u1ec7c s\u1eed d\u1ee5ng OTDR th\u01b0\u1eddng ng\u0103n ch\u1eb7n c\u00e1c s\u1ef1 c\u1ed1 m\u1ea1ng. N\u00f3 cho ph\u00e9p k\u1ef9 thu\u1eadt vi\u00ean ph\u00e1t hi\u1ec7n v\u1ea5n \u0111\u1ec1 s\u1edbm, t\u1eeb \u0111\u00f3 ti\u1ebft ki\u1ec7m c\u1ea3 th\u1eddi gian l\u1eabn chi ph\u00ed.<\/p><\/li><li><p>Lu\u00f4n chu\u1ea9n b\u1ecb OTDR c\u1ee7a b\u1ea1n tr\u01b0\u1edbc khi ki\u1ec3m tra. L\u00e0m s\u1ea1ch c\u00e1c \u0111\u1ea7u n\u1ed1i. Ki\u1ec3m tra c\u00e1c thi\u1ebft l\u1eadp. \u0110\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1ea1c \u0111\u1ea7y. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u01b0a ra k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c.<\/p><\/li><li><p>Vi\u1ec7c \u0111\u1ecdc bi\u1ec3u \u0111\u1ed3 OTDR r\u1ea5t quan tr\u1ecdng. H\u00e3y quan s\u00e1t c\u00e1c \u0111\u1ec9nh nh\u1ecdn v\u00e0 \u0111\u1ed9 s\u1ee5t gi\u1ea3m. Nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y cho bi\u1ebft c\u00e1c l\u1ed7i v\u00e0 h\u1ed7 tr\u1ee3 \u0111o t\u1ed5n hao t\u00edn hi\u1ec7u.<\/p><\/li><li><p>Ghi l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c l\u1ea7n ki\u1ec3m tra OTDR v\u00e0o nh\u1eadt k\u00fd. Vi\u1ec7c n\u00e0y gi\u00fap b\u1ea1n theo d\u00f5i s\u1ee9c kh\u1ecfe m\u1ea1ng c\u00e1p quang theo th\u1eddi gian.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc Thi\u1ebft b\u1ecb ph\u1ea3n x\u1ea1 k\u1ebf mi\u1ec1n th\u1eddi gian quang h\u1ecdc (OTDR) l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <strong>OTDR<\/strong> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quang-\u0111i\u1ec7n t\u1eed d\u00f9ng \u0111\u1ec3 \u0111\u1eb7c tr\u01b0ng h\u00f3a s\u1ee3i quang b\u1eb1ng c\u00e1ch ph\u00e1t c\u00e1c xung \u00e1nh s\u00e1ng v\u00e0 ph\u00e2n t\u00edch c\u00e1c t\u00edn hi\u1ec7u ph\u1ea3n t\u00e1n ng\u01b0\u1ee3c. H\u00e3y h\u00ecnh dung n\u00f3 nh\u01b0 m\u1ed9t \u201cra-\u0111a d\u00e0nh ri\u00eang cho c\u00e1p quang\u201d\u2014n\u00f3 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i, m\u1ed1i n\u1ed1i, ch\u1ed7 u\u1ed1n cong v\u00e0 t\u1ed5n hao d\u1ecdc theo c\u00e1p, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p bi\u1ec3u \u0111\u1ed3 tr\u1ef1c quan v\u1ec1 t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe c\u1ee7a s\u1ee3i quang. Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra phi ph\u00e1 h\u1ee7y n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi <strong>vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u00e1p quang<\/strong>, <strong>l\u1eafp \u0111\u1eb7t m\u1ea1ng<\/strong>, and <strong>b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt c\u1ee7a OTDR bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c cao<\/strong> trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed l\u1ed7i (v\u00ed d\u1ee5: \u0111\u1ee9t ho\u1eb7c u\u1ed1n cong l\u1edbn).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Kh\u1ea3 n\u0103ng \u0111o<\/strong> kho\u1ea3ng c\u00e1ch, t\u1ed5n hao v\u00e0 \u0111\u1ed9 ph\u1ea3n x\u1ea1.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u01b0\u01a1ng th\u00edch<\/strong> t\u01b0\u01a1ng th\u00edch v\u1edbi s\u1ee3i \u0111\u01a1n mode v\u00e0 \u0111a mode.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Theo c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh, vi\u1ec7c ki\u1ec3m tra b\u1eb1ng OTDR l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi <strong>ch\u1ee9ng nh\u1eadn c\u00e1p quang<\/strong> v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c giao th\u1ee9c nh\u01b0 ITU-T G.650.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc OTDR ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>OTDR<\/strong> ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ee7a <strong>ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c<\/strong> and <strong>ph\u1ea3n x\u1ea1 Fresnel<\/strong>. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 s\u01a1 \u0111\u1ed3 \u0111\u01a1n gi\u1ea3n h\u00f3a:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>truy\u1ec1n xung<\/strong>: OTDR g\u1eedi m\u1ed9t xung laser ng\u1eafn, c\u01b0\u1eddng \u0111\u1ed9 cao v\u00e0o s\u1ee3i quang.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>ph\u00e2n t\u00edch t\u00edn hi\u1ec7u<\/strong>: Khi xung di chuy\u1ec3n, n\u00f3 g\u1eb7p c\u00e1c khi\u1ebfm khuy\u1ebft (v\u00ed d\u1ee5: m\u1ed1i n\u1ed1i ho\u1eb7c v\u1ebft n\u1ee9t), khi\u1ebfn \u00e1nh s\u00e1ng b\u1ecb t\u00e1n x\u1ea1 ng\u01b0\u1ee3c v\u1ec1 ph\u00eda OTDR.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>di\u1ec5n gi\u1ea3i d\u1eef li\u1ec7u<\/strong>: Thi\u1ebft b\u1ecb \u0111o \u0111\u1ed9 tr\u1ec5 th\u1eddi gian v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a c\u00e1c t\u00edn hi\u1ec7u tr\u1edf l\u1ea1i \u0111\u1ec3 t\u1ea1o bi\u1ec3u \u0111\u1ed3 d\u1ea1ng v\u1ebft (trace graph), l\u00e0m n\u1ed5i b\u1eadt c\u00e1c s\u1ef1 ki\u1ec7n nh\u01b0 suy hao ho\u1eb7c ph\u1ea3n x\u1ea1.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y cho ph\u00e9p <strong>ph\u00e2n t\u00edch v\u1ebft OTDR<\/strong> \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u00e1c s\u1ef1 c\u1ed1 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>M\u1ee9c suy hao<\/strong> (suy hao t\u00edn hi\u1ec7u theo kho\u1ea3ng c\u00e1ch).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>c\u00e1c s\u1ef1 ki\u1ec7n ph\u1ea3n x\u1ea1<\/strong> (v\u00ed d\u1ee5: \u0111\u1ea7u n\u1ed1i ho\u1eb7c \u0111\u1ee9t g\u00e3y).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>c\u00e1c s\u1ef1 ki\u1ec7n kh\u00f4ng ph\u1ea3n x\u1ea1<\/strong> (v\u00ed d\u1ee5: m\u1ed1i n\u1ed1i ho\u1eb7c u\u1ed1n cong).<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea1t k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c, c\u00e1c th\u00f4ng s\u1ed1 nh\u01b0 \u0111\u1ed9 r\u1ed9ng xung v\u00e0 b\u01b0\u1edbc s\u00f3ng ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a\u2014m\u1ed9t ch\u1ee7 \u0111\u1ec1 ch\u00fang ta s\u1ebd tr\u00ecnh b\u00e0y trong ph\u1ea7n th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"509\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea1492e31a6647f2bdb59c47b3309052.webp\" alt=\"Optical Time-Domain Reflectometer (OTDR)\" class=\"wp-image-4680\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea1492e31a6647f2bdb59c47b3309052.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea1492e31a6647f2bdb59c47b3309052-300x127.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea1492e31a6647f2bdb59c47b3309052-1024x434.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea1492e31a6647f2bdb59c47b3309052-768x326.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea1492e31a6647f2bdb59c47b3309052-18x8.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a OTDR trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00e1y d\u00f2 ph\u1ea3n x\u1ea1 quang th\u1eddi gian (OTDRs)<\/strong> l\u00e0 thi\u1ebft y\u1ebfu trong nhi\u1ec1u l\u0129nh v\u1ef1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 t\u00e1c \u0111\u1ed9ng cao:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Vi\u1ec5n th\u00f4ng<\/strong>: \u0110\u1ea3m b\u1ea3o <strong>t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a m\u1ea1ng c\u00e1p quang<\/strong> cho \u0111\u01b0\u1eddng truy\u1ec1n 5G v\u00e0 <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>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Trung t\u00e2m d\u1eef li\u1ec7u<\/strong>: Ki\u1ec3m tra h\u1ec7 th\u1ed1ng c\u00e1p trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t v\u00e0 <strong>x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed s\u1ef1 c\u1ed1 trong m\u1ea1ng quang<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Internet v\u1ea1n v\u1eadt c\u00f4ng nghi\u1ec7p (Industrial IoT)<\/strong>: Gi\u00e1m s\u00e1t c\u00e1c s\u1ee3i quang d\u00e0i trong th\u00e0nh ph\u1ed1 th\u00f4ng minh v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng tr\u1ecdng y\u1ebfu.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 Qu\u1ed1c ph\u00f2ng<\/strong>: Tri\u1ec3n khai c\u00e1c OTDR b\u1ec1n b\u1ec9 cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o OTDR \u0111\u1ec3 gi\u1ea3m thi\u1ec3u <strong>th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng<\/strong> v\u00e0 h\u1ed7 tr\u1ee3 <strong>truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng OTDR \u0111\u1ec3 ki\u1ec3m tra c\u00e1p quang<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec sao OTDR l\u00e0 c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c \u01b0u ti\u00ean l\u1ef1a ch\u1ecdn? H\u00e3y c\u00f9ng \u0111i\u1ec3m qua nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a n\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>B\u1ea3o tr\u00ec ch\u1ee7 \u0111\u1ed9ng<\/strong>: Ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 tr\u01b0\u1edbc khi ch\u00fang g\u00e2y ra gi\u00e1n \u0111o\u1ea1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/strong>: Ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 ngu\u1ed3n l\u1ef1c nh\u1edd x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c v\u1ecb tr\u00ed s\u1ef1 c\u1ed1.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>B\u00e1o c\u00e1o to\u00e0n di\u1ec7n<\/strong>: T\u1ea1o bi\u1ec3u \u0111\u1ed3 v\u1ebft chi ti\u1ebft ph\u1ee5c v\u1ee5 ki\u1ec3m to\u00e1n v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, <strong>vi\u1ec7c s\u1eed d\u1ee5ng OTDR cho b\u1ea3o tr\u00ec m\u1ea1ng c\u00e1p quang<\/strong> c\u00f3 th\u1ec3 c\u1eaft gi\u1ea3m th\u1eddi gian x\u1eed s\u1ef1 c\u1ed1 l\u00ean \u0111\u1ebfn 50%, theo c\u00e1c nghi\u00ean c\u1ee9u trong ng\u00e0nh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc th\u1ef1c hi\u1ec7n ki\u1ec3m tra b\u1eb1ng OTDR<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c th\u1ef1c hi\u1ec7n ki\u1ec3m tra OTDR \u0111\u00f2i h\u1ecfi thi\u1ebft l\u1eadp v\u00e0 ph\u00e2n t\u00edch c\u1ea9n th\u1eadn. H\u00e3y l\u00e0m theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>K\u1ebft n\u1ed1i OTDR<\/strong> v\u1edbi s\u1ee3i quang th\u00f4ng qua b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c c\u00e1p kh\u1edfi \u0111\u1ed9ng (launch cable).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Thi\u1ebft l\u1eadp th\u00f4ng s\u1ed1<\/strong>: Ch\u1ecdn b\u01b0\u1edbc s\u00f3ng (v\u00ed d\u1ee5: 1310 nm ho\u1eb7c 1550 nm), \u0111\u1ed9 r\u1ed9ng xung v\u00e0 ph\u1ea1m vi \u0111o.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Thu th\u1eadp bi\u1ec3u \u0111\u1ed3 v\u1ebft<\/strong>: Th\u1ef1c hi\u1ec7n ph\u00e9p \u0111o v\u00e0 ghi l\u1ea1i bi\u1ec3u \u0111\u1ed3 OTDR.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ph\u00e2n t\u00edch c\u00e1c s\u1ef1 ki\u1ec7n<\/strong>: X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ec9nh v\u00e0 \u0111\u00e1y tr\u00ean bi\u1ec3u \u0111\u1ed3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed s\u1ef1 c\u1ed1.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ghi ch\u00e9p K\u1ebft qu\u1ea3<\/strong>: L\u01b0u d\u1eef li\u1ec7u \u0111\u1ec3 l\u1eadp b\u00e1o c\u00e1o ho\u1eb7c th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng ti\u1ebfp theo.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49<br> <em>M\u1eb9o chuy\u00ean gia: S\u1eed d\u1ee5ng c\u00e1p kh\u1edfi \u0111\u1ed9ng (launch cable) \u0111\u1ec3 tr\u00e1nh c\u00e1c \u201cv\u00f9ng ch\u1ebft\u201d che khu\u1ea5t c\u00e1c s\u1ef1 ki\u1ec7n \u1edf \u0111\u1ea7u g\u1ea7n!<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc T\u00edch h\u1ee3p OTDR v\u1edbi b\u1ed9 thu ph\u00e1t quang<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><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>, nh\u01b0 <strong>C\u00e1c m\u00f4-\u0111un SFP<\/strong>, c\u00f3 vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n sang t\u00edn hi\u1ec7u quang trong m\u1ea1ng. Nh\u01b0ng ch\u00fang li\u00ean h\u1ec7 v\u1edbi OTDR nh\u01b0 th\u1ebf n\u00e0o? Khi tri\u1ec3n khai ho\u1eb7c ki\u1ec3m tra \u0111\u01b0\u1eddng truy\u1ec1n s\u1ee3i quang, OTDR x\u00e1c minh t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u00e1c k\u1ebft n\u1ed1i li\u00ean quan \u0111\u1ebfn b\u1ed9 thu ph\u00e1t. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\"><strong>SFP-10G-LR<\/strong><\/a> m\u00f4-\u0111un \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong trung t\u00e2m d\u1eef li\u1ec7u, OTDR c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c d\u00e2y n\u1ed1i s\u1ee3i quang v\u00e0 \u0111\u1ea7u n\u1ed1i \u0111\u00e1p \u1ee9ng ng\u00e2n s\u00e1ch suy hao, t\u1eeb \u0111\u00f3 ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 t\u1ef7 l\u1ec7 l\u1ed7i bit cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ec sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra T\u00ednh t\u01b0\u01a1ng th\u00edch<\/strong>: Ki\u1ec3m tra OTDR x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c b\u1ed9 thu ph\u00e1t nh\u01b0 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476095.htm\"><strong>SFP28-25G-ER<\/strong><\/a> ho\u1ea1t \u0111\u1ed9ng trong ng\u01b0\u1ee1ng suy hao quy \u0111\u1ecbnh.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u1ed1i \u01b0u h\u00f3a Hi\u1ec7u n\u0103ng<\/strong>: B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh suy hao qu\u00e1 m\u1ee9c t\u1ea1i c\u00e1c giao di\u1ec7n b\u1ed9 thu ph\u00e1t, k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 <strong>hi\u1ec7u n\u0103ng \u0111\u01b0\u1eddng truy\u1ec1n s\u1ee3i quang<\/strong> m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, <strong>c\u00e1ch t\u00edch h\u1ee3p OTDR v\u1edbi c\u00e1c m\u00f4-\u0111un quang<\/strong> l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn trong s\u1ed1 c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng. Lu\u00f4n tham kh\u1ea3o h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t\u2014v\u00ed d\u1ee5, LINK-PP cung c\u1ea5p b\u1ea3ng d\u1eef li\u1ec7u chi ti\u1ebft v\u1ec1 gi\u1edbi h\u1ea1n t\u1ed5n hao ch\u00e8n cho c\u00e1c b\u1ed9 thu ph\u00e1t c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc C\u00e1c lo\u1ea1i s\u1ef1 ki\u1ec7n OTDR ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u00fang<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c di\u1ec5n gi\u1ea3i bi\u1ec3u \u0111\u1ed3 \u0111o, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng t\u00f3m t\u1eaft c\u00e1c s\u1ef1 ki\u1ec7n OTDR \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i s\u1ef1 ki\u1ec7n<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>M\u00f4 t\u1ea3<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Nguy\u00ean nh\u00e2n<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>D\u1ea5u hi\u1ec7u bi\u1ec3u \u0111\u1ed3 OTDR<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ef1 ki\u1ec7n ph\u1ea3n x\u1ea1<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ec9nh t\u00edn hi\u1ec7u \u0111\u1ed9t ng\u1ed9t do ph\u1ea3n x\u1ea1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ea7u n\u1ed1i, \u0111\u1ee9t g\u00e3y ho\u1eb7c kh\u00f4ng kh\u1edbp impedan<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ec9nh s\u1eafc nh\u1ecdn ti\u1ebfp theo l\u00e0 \u0111\u1ed9 gi\u1ea3m m\u1ea1nh<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ef1 ki\u1ec7n kh\u00f4ng ph\u1ea3n x\u1ea1<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed5n hao t\u00edn hi\u1ec7u d\u1ea7n d\u1ea7n m\u00e0 kh\u00f4ng c\u00f3 ph\u1ea3n x\u1ea1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>N\u1ed1i h\u00e0n, u\u1ed1n cong ho\u1eb7c u\u1ed1n vi m\u00f4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 s\u1ee5t gi\u1ea3m tr\u01a1n tr\u00ean bi\u1ec3u \u0111\u1ed3<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>M\u1ee9c suy hao<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u1ea3m t\u00edn hi\u1ec7u theo kho\u1ea3ng c\u00e1ch<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>V\u1eadt li\u1ec7u s\u1ee3i quang ho\u1eb7c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 d\u1ed1c xu\u1ed1ng \u1ed5n \u0111\u1ecbnh<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1ea7u cu\u1ed1i s\u1ee3i quang<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110i\u1ec3m cu\u1ed1i c\u1ee7a c\u00e1p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ea7u s\u1ee3i quang h\u1edf ho\u1eb7c \u0111\u1ee9t g\u00e3y<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea3n x\u1ea1 l\u1edbn sau \u0111\u00f3 l\u00e0 \u0111\u01b0\u1eddng th\u1eb3ng ngang<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng n\u00e0y h\u1ed7 tr\u1ee3 ph\u00e2n t\u00edch bi\u1ec3u \u0111\u1ed3 OTDR cho c\u1ea3 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u l\u1eabn chuy\u00ean gia.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t \u0111\u1ec3 ki\u1ec3m tra OTDR hi\u1ec7u qu\u1ea3<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed1i \u01b0u h\u00f3a \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a <strong>OTDR<\/strong>\u2018b\u1eb1ng nh\u1eefng m\u1eb9o sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Hi\u1ec7u chu\u1ea9n th\u01b0\u1eddng xuy\u00ean<\/strong>: \u0110\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n theo c\u00e1c ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>S\u1eed d\u1ee5ng c\u00e1c thi\u1ebft l\u1eadp ph\u00f9 h\u1ee3p<\/strong>: \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 r\u1ed9ng xung theo chi\u1ec1u d\u00e0i s\u1ee3i quang\u2014ng\u1eafn h\u01a1n cho s\u1ee3i ng\u1eafn, d\u00e0i h\u01a1n cho tuy\u1ebfn truy\u1ec1n d\u1eabn xa.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>S\u1eed d\u1ee5ng c\u00e1p kh\u1edfi \u0111\u1ed9ng v\u00e0 c\u00e1p nh\u1eadn t\u00edn hi\u1ec7u<\/strong>: Gi\u1ea3m thi\u1ec3u v\u00f9ng ch\u1ebft \u0111\u1ec3 ph\u00e2n t\u00edch r\u00f5 ph\u1ea7n \u0111\u1ea7u g\u1ea7n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u1eadn d\u1ee5ng ch\u1ebf \u0111\u1ed9 t\u1ef1 ki\u1ec3m tra<\/strong>: Nhi\u1ec1u thi\u1ebft b\u1ecb OTDR hi\u1ec7n \u0111\u1ea1i, nh\u01b0 nh\u1eefng thi\u1ebft b\u1ecb d\u00f9ng c\u00f9ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>B\u1ed9 thu ph\u00e1t LINK-PP<\/strong><\/a>, cung c\u1ea5p t\u00ednh n\u0103ng t\u1ef1 \u0111\u1ed9ng nh\u1eb1m \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c th\u1ef1c h\u00e0nh n\u00e0y n\u00e2ng cao \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a <strong>vi\u1ec7c ki\u1ec3m tra s\u1ee3i quang<\/strong> v\u00e0 h\u1ed7 tr\u1ee3 <strong>\u0111\u1ed9 tin c\u1eady m\u1ea1ng<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc Gi\u1edbi thi\u1ec7u n\u1ed5i b\u1eadt v\u1ec1 c\u00e1c module quang h\u1ecdc LINK-PP<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"719\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/067783eba0da4b01b9f183b19d2b6cf6.jpg\" alt=\"optical transceiver\" class=\"wp-image-4681\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/067783eba0da4b01b9f183b19d2b6cf6.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/067783eba0da4b01b9f183b19d2b6cf6-300x180.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/067783eba0da4b01b9f183b19d2b6cf6-1024x614.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/067783eba0da4b01b9f183b19d2b6cf6-768x460.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/067783eba0da4b01b9f183b19d2b6cf6-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e0 m\u1ed9t nh\u00e0 ti\u00ean phong trong l\u0129nh v\u1ef1c s\u1ee3i quang, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a> cung c\u1ea5p lo\u1ea1t b\u1ed9 thu ph\u00e1t hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi OTDR. V\u00ed d\u1ee5, module <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472118.htm\"><strong>QSFP28-100G-LR4<\/strong><\/a> h\u1ed7 tr\u1ee3 Ethernet 100G v\u00e0 r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea7m xa, n\u01a1i ki\u1ec3m tra OTDR x\u00e1c nh\u1eadn t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a li\u00ean k\u1ebft. Khi l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m LINK-PP, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u01b0\u1edfng c\u00e1c l\u1ee3i \u00edch sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Low Insertion Loss<\/strong>: Gi\u1ea3m thi\u1ec3u suy hao t\u00edn hi\u1ec7u, nh\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh qua bi\u1ec3u \u0111\u1ed3 OTDR.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u1ed9 b\u1ec1n<\/strong>: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u1ef1ng \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c kh\u1eafc nghi\u1ec7t ngo\u00e0i th\u1ef1c \u0111\u1ecba.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Tu\u00e2n th\u1ee7<\/strong>: \u0110\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9 b\u1ea1n \u0111ang tri\u1ec3n khai <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\"><strong>m\u00f4-\u0111un SFP+<\/strong><\/a> trong trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c s\u1eed d\u1ee5ng OTDR \u0111\u1ec3 <strong>\u0111\u1eb7c tr\u01b0ng s\u1ee3i quang trong m\u1ea1ng 5G<\/strong>, s\u1ef1 k\u1ebft h\u1ee3p h\u00e0i h\u00f2a n\u00e0y \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdc K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>OTDR<\/strong> l\u00e0 n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a qu\u1ea3n l\u00fd s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i, cho ph\u00e9p ph\u00e1t hi\u1ec7n l\u1ed7i ch\u00ednh x\u00e1c v\u00e0 b\u1ea3o tr\u00ec hi\u1ec7u qu\u1ea3. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch t\u00edch h\u1ee3p v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a> c\u00e1c module quang h\u1ecdc, b\u1ea1n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c m\u1ea1ng l\u01b0\u1edbi b\u1ec1n b\u1ec9 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u1ee7a n\u1ec1n kinh t\u1ebf s\u1ed1 ng\u00e0y nay. H\u00e3y nh\u1edb r\u1eb1ng, vi\u1ec7c ki\u1ec3m tra OTDR \u0111\u1ecbnh k\u1ef3 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh t\u1ed1t\u2014\u0111\u00f3 c\u00f2n l\u00e0 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 th\u00f4ng minh v\u00e0o kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i kh\u00f4ng gi\u00e1n \u0111o\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00e1y \u0111o ph\u1ea3n x\u1ea1 th\u1eddi gian quang (OTDR) x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed s\u1ef1 c\u1ed1, \u0111o t\u1ed5n hao m\u1ed1i n\u1ed1i v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1p s\u1ee3i quang nh\u1eb1m duy tr\u00ec m\u1ea1ng hi\u1ec7u qu\u1ea3.<\/p>","protected":false},"author":1,"featured_media":4679,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[24,26],"class_list":["post-4682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4682","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=4682"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4682\/revisions"}],"predecessor-version":[{"id":11005,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4682\/revisions\/11005"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4679"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}