{"id":5921,"date":"2025-06-20T00:00:00","date_gmt":"2025-06-20T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/common-optical-transceiver-failures-and-solutions\/"},"modified":"2026-06-22T09:26:08","modified_gmt":"2026-06-22T09:26:08","slug":"common-optical-transceiver-failures-and-solutions","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/common-optical-transceiver-failures-and-solutions","title":{"rendered":"Gi\u1ea3i m\u00e3 c\u00e1c s\u1ef1 c\u1ed1 b\u1ed9 thu ph\u00e1t quang: C\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn &amp; C\u00e1c gi\u1ea3i ph\u00e1p ch\u1ee7 \u0111\u1ed9ng"},"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\/d0a4edd6f05c4cc693ff4f6475ee97dc.webp\" alt=\"common issues of optical transceiver\" class=\"wp-image-5918\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d0a4edd6f05c4cc693ff4f6475ee97dc.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d0a4edd6f05c4cc693ff4f6475ee97dc-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d0a4edd6f05c4cc693ff4f6475ee97dc-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d0a4edd6f05c4cc693ff4f6475ee97dc-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d0a4edd6f05c4cc693ff4f6475ee97dc-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean ph\u1ea7n l\u00f5i t\u1ed1c \u0111\u1ed9 cao c\u1ee7a c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, <strong>b\u1ed9 thu ph\u00e1t quang<\/strong> (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c m\u00f4-\u0111un s\u1ee3i quang ho\u1eb7c \u0111\u01a1n gi\u1ea3n l\u00e0 c\u00e1c m\u00f4-\u0111un quang) l\u00e0 nh\u1eefng th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu. C\u00e1c thi\u1ebft b\u1ecb nh\u1ecf g\u1ecdn n\u00e0y chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n sang t\u00edn hi\u1ec7u quang v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1p s\u1ee3i quang. M\u1eb7c d\u00f9 n\u00f3i chung r\u1ea5t \u0111\u00e1ng tin c\u1eady, nh\u01b0ng s\u1ef1 c\u1ed1 v\u1eabn x\u1ea3y ra, d\u1eabn \u0111\u1ebfn th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng g\u00e2y kh\u00f3 ch\u1ecbu, suy gi\u1ea3m hi\u1ec7u n\u0103ng v\u00e0 chi ph\u00ed kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 t\u1ed1n k\u00e9m. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c <strong>ch\u1ebf \u0111\u1ed9 h\u1ecfng h\u00f3c ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/strong> c\u1ee7a b\u1ed9 thu ph\u00e1t quang l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng v\u00e0 chuy\u00ean gia CNTT nh\u1eb1m duy tr\u00ec t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe t\u1ed1i \u01b0u cho m\u1ea1ng. H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 nh\u1eefng s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p n\u00e0y v\u00e0 \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p th\u1ef1c ti\u1ec5n, \u0111\u1ed3ng th\u1eddi l\u00e0m n\u1ed5i b\u1eadt c\u00e1ch c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>transceiver quang h\u1ecdc LINK-PP<\/strong><\/a> c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 H\u01b0 h\u1ea1i v\u1eadt l\u00fd v\u00e0 nhi\u1ec5m b\u1ea9n \u0111\u1ea7u n\u1ed1i (K\u1ebb gi\u1ebft ng\u01b0\u1eddi th\u1ea7m l\u1eb7ng)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong> \u0110\u1ea7u n\u1ed1i s\u1ee3i quang (ph\u1ea7n \u0111\u1ea7u ferrule b\u1eb1ng g\u1ed1m ho\u1eb7c kim lo\u1ea1i ch\u00ednh x\u00e1c) c\u1ef1c k\u1ef3 d\u1ec5 b\u1ecb tr\u1ea7y x\u01b0\u1edbc vi m\u00f4, n\u1ee9t v\u1ee1 ho\u1eb7c nhi\u1ec5m b\u1ea9n (b\u1ee5i, d\u1ea7u, d\u1ea5u v\u00e2n tay). Ngay c\u1ea3 nh\u1eefng khi\u1ebfm khuy\u1ebft nh\u1ecf nh\u1ea5t c\u0169ng c\u00f3 th\u1ec3 l\u00e0m t\u00e1n x\u1ea1 ho\u1eb7c ch\u1eb7n \u00e1nh s\u00e1ng, g\u00e2y suy hao t\u00edn hi\u1ec7u (attenuation), l\u1ed7i (t\u1ef7 l\u1ec7 l\u1ed7i bit BER t\u0103ng) ho\u1eb7c m\u1ea5t ho\u00e0n to\u00e0n k\u1ebft n\u1ed1i.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Bi\u1ec3u hi\u1ec7n:<\/strong> K\u1ebft n\u1ed1i ch\u1eadp ch\u1eddn, t\u1ef7 l\u1ec7 l\u1ed7i cao, kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n m\u1ee9c thi\u1ebft k\u1ebf, m\u1ea5t ho\u00e0n to\u00e0n k\u1ebft n\u1ed1i. Th\u01b0\u1eddng bi\u1ec3u hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng k\u1ebft n\u1ed1i \u201cdao \u0111\u1ed9ng\u201d (flapping links).<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba &amp; gi\u1ea3i ph\u00e1p:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Lu\u00f4n s\u1eed d\u1ee5ng n\u1eafp b\u1ea3o v\u1ec7<\/strong> khi b\u1ed9 thu ph\u00e1t quang ho\u1eb7c c\u00e1p s\u1ee3i quang kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra tr\u01b0\u1edbc khi k\u1ebft n\u1ed1i:<\/strong> S\u1eed d\u1ee5ng k\u00ednh hi\u1ec3n vi ki\u1ec3m tra s\u1ee3i quang \u0111\u1ec3 ki\u1ec3m tra ferrule xem c\u00f3 nhi\u1ec5m b\u1ea9n hay h\u01b0 h\u1ea1i hay kh\u00f4ng. <em>\u0110\u00e2y l\u00e0 b\u01b0\u1edbc ph\u00f2ng ng\u1eeba hi\u1ec7u qu\u1ea3 nh\u1ea5t!<\/em><\/p><\/li><li><p style=\"margin: 0px;\"><strong>L\u00e0m s\u1ea1ch \u0111\u00fang c\u00e1ch:<\/strong> S\u1eed d\u1ee5ng kh\u0103n lau kh\u00f4ng x\u01a1 v\u00e0 dung d\u1ecbch l\u00e0m s\u1ea1ch chuy\u00ean d\u1ee5ng cho quang h\u1ecdc ho\u1eb7c b\u1ed9 l\u00e0m s\u1ea1ch d\u1ea1ng b\u0103ng cassette. Kh\u00f4ng bao gi\u1edd ch\u1ec9 d\u00f9ng kh\u00ed n\u00e9n \u0111\u1ec3 l\u00e0m s\u1ea1ch.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Thao t\u00e1c c\u1ea9n th\u1eadn:<\/strong> Tr\u00e1nh ch\u1ea1m v\u00e0o ph\u1ea7n ferrule; ch\u1ec9 c\u1ea7m v\u00e0o th\u00e2n \u0111\u1ea7u n\u1ed1i.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 Laser ho\u1eb7c b\u1ed9 d\u00f2 quang b\u1ecb suy gi\u1ea3m ho\u1eb7c h\u1ecfng (Tr\u00e1i tim ng\u1eebng \u0111\u1eadp)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong> The <strong>\u0111i-\u1ed1t laser<\/strong> (Tx) ho\u1eb7c <strong>b\u1ed9 ph\u00e1t hi\u1ec7n quang<\/strong> (Rx) b\u00ean trong m\u00f4-\u0111un c\u00f3 th\u1ec3 suy gi\u1ea3m theo th\u1eddi gian ho\u1eb7c h\u1ecfng s\u1edbm. Nguy\u00ean nh\u00e2n bao g\u1ed3m l\u1ed7i s\u1ea3n xu\u1ea5t, nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng qu\u00e1 cao, xung \u0111i\u1ec7n \u00e1p ho\u1eb7c \u0111\u01a1n gi\u1ea3n l\u00e0 \u0111\u00e3 \u0111\u1ebfn cu\u1ed1i v\u00f2ng \u0111\u1eddi.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Bi\u1ec3u hi\u1ec7n:<\/strong> S\u1ef1 gia t\u0103ng d\u1ea7n d\u1ea7n v\u1ec1 <strong>T\u1ef7 l\u1ec7 L\u1ed7i Bit (BER)<\/strong>, gi\u1ea3m \u0111\u1ea7u ra c\u00f4ng su\u1ea5t quang (Tx), gi\u1ea3m \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu (Rx), m\u1ea5t ho\u00e0n to\u00e0n truy\u1ec1n ho\u1eb7c thu \u00e1nh s\u00e1ng. Th\u01b0\u1eddng g\u00e2y ra c\u00e1c s\u1ef1 c\u1ed1 ng\u1eaft qu\u00e3ng tr\u01b0\u1edbc khi h\u1ecfng ho\u00e0n to\u00e0n.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba &amp; gi\u1ea3i ph\u00e1p:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Gi\u00e1m s\u00e1t <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\"><strong>DOM\/DDM<\/strong><\/a><strong> D\u1eef li\u1ec7u:<\/strong> S\u1eed d\u1ee5ng Gi\u00e1m s\u00e1t Quang K\u1ef9 thu\u1eadt s\u1ed1 <strong>(DOM)<\/strong> ho\u1eb7c Gi\u00e1m s\u00e1t Ch\u1ea9n \u0111o\u00e1n K\u1ef9 thu\u1eadt s\u1ed1 <strong>(DDM)<\/strong> c\u00f3 s\u1eb5n tr\u00ean h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i <strong>b\u1ed9 thu ph\u00e1t quang<\/strong> \u0111\u1ec3 theo d\u00f5i c\u00f4ng su\u1ea5t Tx, c\u00f4ng su\u1ea5t Rx, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p ngu\u1ed3n. Thi\u1ebft l\u1eadp gi\u00e1 tr\u1ecb c\u01a1 s\u1edf v\u00e0 ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u1ea3m b\u1ea3o th\u00f4ng gi\u00f3 ph\u00f9 h\u1ee3p:<\/strong> Ng\u0103n ch\u1eb7n m\u00f4-\u0111un qu\u00e1 nhi\u1ec7t. Duy tr\u00ec lu\u1ed3ng kh\u00ed s\u1ea1ch trong khung m\u00e1y (chassis).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>S\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao:<\/strong> B\u1ea3o v\u1ec7 ch\u1ed1ng xung \u0111i\u1ec7n v\u00e0 nhi\u1ec5u \u0111i\u1ec7n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ngu\u1ed3n t\u1eeb nh\u00e0 cung c\u1ea5p uy t\u00edn:<\/strong> Linh ki\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 ki\u1ec3m tra nghi\u00eam ng\u1eb7t, nh\u01b0 nh\u1eefng linh ki\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong <strong>B\u1ed9 thu ph\u00e1t LINK-PP<\/strong>, gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 h\u1ecfng h\u00f3c s\u1edbm.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 V\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch v\u00e0 c\u1ea5u h\u00ecnh (L\u00fd thuy\u1ebft l\u00e0 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c, nh\u01b0ng th\u1ef1c t\u1ebf th\u00ec kh\u00f4ng)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px 0px 4px;\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong> B\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 t\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t v\u1eadt l\u00fd (v\u00ed d\u1ee5: d\u1ea1ng SFP+) nh\u01b0ng kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i do:<\/p><ul><li><p style=\"margin: 0px;\"><strong>Kh\u00f4ng kh\u1edbp ph\u1ea7n m\u1ec1m\u56fa\u4ef6\/M\u00e3 h\u00f3a:<\/strong> Thi\u1ebft b\u1ecb ch\u1ee7 (switch, router, NIC) t\u1eeb ch\u1ed1i m\u00f4-\u0111un do d\u1eef li\u1ec7u EEPROM kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n ho\u1eb7c sai.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Kh\u00f4ng kh\u1edbp t\u1ed1c \u0111\u1ed9\/\u0111\u1ed9 duplex:<\/strong> C\u00e0i \u0111\u1eb7t c\u1ea5u h\u00ecnh c\u1ed5ng tr\u00ean thi\u1ebft b\u1ecb ch\u1ee7 kh\u00f4ng \u0111\u00fang.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u00ednh n\u0103ng kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3:<\/strong> Thi\u1ebft b\u1ecb ch\u1ee7 kh\u00f4ng h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t tr\u00ean m\u00f4-\u0111un (v\u00ed d\u1ee5: FEC).<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Bi\u1ec3u hi\u1ec7n:<\/strong> M\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb ch\u1ee7 nh\u1eadn di\u1ec7n, k\u1ebft n\u1ed1i kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c d\u00f9 k\u1ebft n\u1ed1i v\u1eadt l\u00fd v\u00e0 s\u1ee3i quang t\u1ed1t, ho\u1eb7c k\u1ebft n\u1ed1i kh\u00f4ng \u1ed5n \u0111\u1ecbnh \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba &amp; gi\u1ea3i ph\u00e1p:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch:<\/strong> Tham kh\u1ea3o danh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb (MCL\/VLL). C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t b\u00ean th\u1ee9 ba uy t\u00edn nh\u01b0 <strong>LINK-PP<\/strong> ki\u1ec3m tra nghi\u1ec7m ng\u1eb7t c\u00e1c m\u00f4-\u0111un tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng OEM ch\u00ednh<strong>(Cisco, Juniper, Arista, HPE, v.v.)<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra c\u1ea5u h\u00ecnh:<\/strong> \u0110\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 c\u1ed5ng, \u0111\u1ed9 duplex v\u00e0 c\u00e0i \u0111\u1eb7t FEC tr\u00ean thi\u1ebft b\u1ecb ch\u1ee7 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee7a m\u00f4-\u0111un v\u00e0 thi\u1ebft b\u1ecb \u0111\u1ea7u kia tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u00e2n nh\u1eafc D\u1ecbch v\u1ee5 \u201cM\u00e3 h\u00f3a\u201d:<\/strong> M\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p cung c\u1ea5p c\u00e1c m\u00f4-\u0111un \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh s\u1eb5n cho m\u00f4i tr\u01b0\u1eddng OEM c\u1ee5 th\u1ec3. <strong>LINK-PP<\/strong> cung c\u1ea5p m\u00e3 h\u00f3a \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch cho c\u00e1c n\u1ec1n t\u1ea3ng ch\u00ednh.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 T\u1ed5n hao \u0111\u01b0\u1eddng truy\u1ec1n quang qu\u00e1 m\u1ee9c v\u00e0 s\u1ef1 c\u1ed1 s\u1ee3i quang (\u0110\u01b0\u1eddng truy\u1ec1n b\u1ecb ch\u1eb7n)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px 0px 4px;\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong> M\u1eb7c d\u00f9 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng do <em>m\u00f4-\u0111un thu ph\u00e1t<\/em> g\u00e2y ra, t\u1ed5n hao \u0111\u01b0\u1eddng truy\u1ec1n quang v\u01b0\u1ee3t qu\u00e1 ng\u00e2n s\u00e1ch cho ph\u00e9p c\u1ee7a m\u00f4-\u0111un. Nguy\u00ean nh\u00e2n bao g\u1ed3m:<\/p><ul><li><p style=\"margin: 0px;\">\u0110\u1ea7u n\u1ed1i b\u1ea9n ho\u1eb7c b\u1ecb h\u01b0 h\u1ea1i.<\/p><\/li><li><p style=\"margin: 0px;\">C\u00e1c \u0111\u1ea7u n\u1ed1i gh\u00e9p n\u1ed1i k\u00e9m (l\u1ec7ch g\u00f3c, ch\u00e8n thi\u1ebfu ho\u1eb7c ch\u00e8n qu\u00e1 s\u00e2u).<\/p><\/li><li><p style=\"margin: 0px;\">C\u00e1p quang b\u1ecb h\u01b0 h\u1ecfng, xo\u1eafn ho\u1eb7c cong (v\u01b0\u1ee3t qu\u00e1 b\u00e1n k\u00ednh u\u1ed1n cho ph\u00e9p).<\/p><\/li><li><p style=\"margin: 0px;\">\u0110\u1ed9 d\u00e0i c\u00e1p quang qu\u00e1 l\u1edbn, v\u01b0\u1ee3t qu\u00e1 kho\u1ea3ng c\u00e1ch quy \u0111\u1ecbnh c\u1ee7a module.<\/p><\/li><li><p style=\"margin: 0px;\">T\u1ed5n hao m\u1ed1i n\u1ed1i cao ho\u1eb7c qu\u00e1 nhi\u1ec1u \u0111\u1ea7u n\u1ed1i tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Bi\u1ec3u hi\u1ec7n:<\/strong> K\u1ebft n\u1ed1i kh\u00f4ng \u1ed5n \u0111\u1ecbnh, t\u1ef7 l\u1ec7 l\u1ed7i cao, kho\u1ea3ng c\u00e1ch ho\u1ea1t \u0111\u1ed9ng gi\u1ea3m, li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh. D\u1eef li\u1ec7u DOM s\u1ebd hi\u1ec3n th\u1ecb c\u00f4ng su\u1ea5t Rx th\u1ea5p.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba &amp; gi\u1ea3i ph\u00e1p:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>\u0110o t\u1ed5n hao li\u00ean k\u1ebft:<\/strong> S\u1eed d\u1ee5ng m\u1ed9t <strong>B\u1ed9 ki\u1ec3m tra t\u1ed5n hao quang (OLTS)<\/strong> \u0111\u1ec3 ch\u1ee9ng nh\u1eadn t\u1ed5n hao h\u1ec7 th\u1ed1ng c\u00e1p quang <em>tr\u01b0\u1edbc khi<\/em> khi tri\u1ec3n khai b\u1ed9 thu ph\u00e1t. \u0110\u1ea3m b\u1ea3o t\u1ed5n hao n\u1eb1m trong ng\u00e2n s\u00e1ch c\u1ee7a module v\u00e0 c\u00f3 d\u1ef1 ph\u00f2ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra v\u00e0 l\u00e0m s\u1ea1ch:<\/strong> Lu\u00f4n lu\u00f4n!<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra \u0111\u1ed9 nguy\u00ean v\u1eb9n c\u1ee7a s\u1ee3i quang:<\/strong> Ki\u1ec3m tra tr\u1ef1c quan c\u00e1p \u0111\u1ec3 ph\u00e1t hi\u1ec7n h\u01b0 h\u1ecfng; s\u1eed d\u1ee5ng m\u00e1y \u0111o ph\u1ea3n x\u1ea1 quang th\u1eddi gian (OTDR) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed s\u1ef1 c\u1ed1 n\u1ebfu c\u1ea7n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>S\u1eed d\u1ee5ng module ph\u00f9 h\u1ee3p:<\/strong> Ch\u1ecdn c\u00e1c module (v\u00ed d\u1ee5 nh\u01b0 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\"><strong>LS-SM3110-10C<\/strong><\/a><strong> <\/strong>cho kho\u1ea3ng c\u00e1ch 10 km ho\u1eb7c <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472118.htm\"><strong>LQ-LW100-LR4C<br><\/strong><\/a> cho kho\u1ea3ng c\u00e1ch 10 km \u1edf t\u1ed1c \u0111\u1ed9 100G) t\u01b0\u01a1ng th\u00edch v\u1edbi kho\u1ea3ng c\u00e1ch th\u1ef1c t\u1ebf y\u00eau c\u1ea7u. Kh\u00f4ng n\u00ean ch\u1ecdn module c\u00f3 th\u00f4ng s\u1ed1 v\u01b0\u1ee3t m\u1ee9c c\u1ea7n thi\u1ebft m\u1ed9t c\u00e1ch kh\u00f4ng c\u1ea7n thi\u1ebft, nh\u01b0ng ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00f3 \u0111\u1ee7 d\u1ef1 ph\u00f2ng.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 H\u01b0 h\u1ecfng giao di\u1ec7n \u0111i\u1ec7n\/ESD (C\u00fa s\u1ed1c)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px 0px 4px;\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong> H\u01b0 h\u1ecfng c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n (c\u00e1c ch\u00e2n m\u1ea1 v\u00e0ng) ho\u1eb7c m\u1ea1ch t\u00edch h\u1ee3p b\u00ean trong c\u00f3 th\u1ec3 x\u1ea3y ra do:<\/p><ul><li><p style=\"margin: 0px;\"><strong>Ph\u00f3ng t\u0129nh \u0111i\u1ec7n (ESD):<\/strong> Thao t\u00e1c module m\u00e0 kh\u00f4ng tu\u00e2n th\u1ee7 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ch\u1ed1ng ESD \u0111\u00fang c\u00e1ch (d\u00e2y \u0111eo c\u1ed5 tay, th\u1ea3m ch\u1ed1ng t\u0129nh \u0111i\u1ec7n).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H\u01b0 H\u1ecfng V\u1eadt L\u00fd:<\/strong> Ch\u00e2n b\u1ecb cong ho\u1eb7c g\u00e3y trong qu\u00e1 tr\u00ecnh c\u1eafm ho\u1eb7c th\u00e1o module.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>S\u1ef1 c\u1ed1 ho\u00e1n \u0111\u1ed5i n\u00f3ng (hot-swap):<\/strong> M\u1eb7c d\u00f9 nhi\u1ec1u module h\u1ed7 tr\u1ee3 ho\u00e1n \u0111\u1ed5i n\u00f3ng, nh\u01b0ng c\u00e1c \u0111\u1ee3t t\u0103ng \u0111i\u1ec7n \u00e1p \u0111\u1ed9t ng\u1ed9t ho\u1eb7c tr\u00ecnh t\u1ef1 c\u1ea5p ngu\u1ed3n kh\u00f4ng \u0111\u00fang v\u1eabn c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Bi\u1ec3u hi\u1ec7n:<\/strong> Module kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb ch\u1ee7 nh\u1eadn di\u1ec7n, ho\u1ea1t \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng ho\u1eb7c ho\u00e0n to\u00e0n th\u1ea5t b\u1ea1i. Ki\u1ec3m tra tr\u1ef1c quan c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c ti\u1ebfp \u0111i\u1ec3m b\u1ecb h\u01b0 h\u1ecfng.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba &amp; gi\u1ea3i ph\u00e1p:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>Tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c quy tr\u00ecnh ESD:<\/strong> Lu\u00f4n thao t\u00e1c module trong m\u00f4i tr\u01b0\u1eddng ch\u1ed1ng t\u0129nh \u0111i\u1ec7n, s\u1eed d\u1ee5ng d\u00e2y \u0111eo c\u1ed5 tay v\u00e0 th\u1ea3m ch\u1ed1ng t\u0129nh \u0111i\u1ec7n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u1eafm\/th\u00e1o module m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn:<\/strong> \u0110\u1ea3m b\u1ea3o c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c; s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 do nh\u00e0 s\u1ea3n xu\u1ea5t khuy\u1ebfn ngh\u1ecb n\u1ebfu c\u1ea7n (v\u00ed d\u1ee5: d\u1ee5ng c\u1ee5 th\u00e1o SFP). Kh\u00f4ng \u00e9p module v\u00e0o khe c\u1eafm.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Tu\u00e2n th\u1ee7 quy tr\u00ecnh ho\u00e1n \u0111\u1ed5i n\u00f3ng:<\/strong> T\u1eaft ngu\u1ed3n c\u1ed5ng n\u1ebfu c\u00f3 th\u1ec3 ho\u1eb7c theo khuy\u1ebfn ngh\u1ecb; c\u1eafm ho\u1eb7c th\u00e1o module m\u1ed9t c\u00e1ch tr\u01a1n tru.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 \u1ea2nh h\u01b0\u1edfng c\u1ee7a y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng (Nhi\u1ec7t l\u00e0 k\u1ebb th\u00f9)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong> B\u1ed9 thu ph\u00e1t quang sinh nhi\u1ec7t. Vi\u1ec7c v\u1eadn h\u00e0nh li\u00ean t\u1ee5c \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a quy \u0111\u1ecbnh (th\u01b0\u1eddng l\u00e0 70\u00b0C t\u1ea1i v\u1ecf module) s\u1ebd l\u00e0m gia t\u1ed1c qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a, suy gi\u1ea3m hi\u1ec7u n\u0103ng laser v\u00e0 r\u00fat ng\u1eafn tu\u1ed5i th\u1ecd. \u0110\u1ed9 \u1ea9m cao c\u0169ng c\u00f3 th\u1ec3 g\u00e2y \u0103n m\u00f2n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Bi\u1ec3u hi\u1ec7n:<\/strong> T\u1ef7 l\u1ec7 l\u1ed7i bit (BER) t\u0103ng, li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh, c\u00f4ng su\u1ea5t \u0111\u1ea7u ra gi\u1ea3m, h\u1ecfng s\u1edbm. D\u1eef li\u1ec7u DOM cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 cao.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba &amp; gi\u1ea3i ph\u00e1p:<\/strong><\/p><ul><li><p style=\"margin: 0px;\"><strong>\u0110\u1ea3m b\u1ea3o l\u01b0u l\u01b0\u1ee3ng kh\u00ed \u0111\u1ea7y \u0111\u1ee7:<\/strong> Gi\u1eef b\u1ed9 l\u1ecdc kh\u00ed s\u1ea1ch, tr\u00e1nh b\u1ecbt k\u00edn c\u00e1c l\u1ed7 th\u00f4ng gi\u00f3, \u0111\u1ea3m b\u1ea3o kho\u1ea3ng c\u00e1ch ph\u00f9 h\u1ee3p gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb. S\u1eed d\u1ee5ng khung m\u00e1y (chassis) c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t \u0111\u1ee7.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9:<\/strong> S\u1eed d\u1ee5ng DOM\/DDM \u0111\u1ec3 theo d\u00f5i nhi\u1ec7t \u0111\u1ed9 module. Thi\u1ebft l\u1eadp c\u1ea3nh b\u00e1o.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u00e2n nh\u1eafc m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh:<\/strong> Tr\u00e1nh l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb m\u1ea1ng trong c\u00e1c kh\u00f4ng gian kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u1ec1 kh\u00ed h\u1eadu v\u00e0 d\u1ec5 b\u1ecb qu\u00e1 nhi\u1ec7t.<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 Tham kh\u1ea3o nhanh: C\u00e1c s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p c\u1ee7a b\u1ed9 thu ph\u00e1t quang &amp; c\u00e1c bi\u1ec7n ph\u00e1p x\u1eed l\u00fd<\/strong><\/h2>\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>Nguy\u00ean nh\u00e2n s\u1ef1 c\u1ed1<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Tri\u1ec7u ch\u1ee9ng ch\u00ednh<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>C\u00f4ng c\u1ee5 ch\u1ea9n \u0111o\u00e1n ch\u00ednh<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>H\u00e0nh \u0111\u1ed9ng t\u1ee9c th\u1eddi &amp; ph\u00f2ng ng\u1eeba<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>H\u01b0 h\u1ea1i\/b\u1ea9n \u0111\u1ea7u n\u1ed1i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft ng\u1eaft qu\u00e3ng, l\u1ed7i cao, m\u1ea5t li\u00ean k\u1ebft<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u00ednh hi\u1ec3n vi ki\u1ec3m tra, ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>KI\u1ec2M TRA &amp; L\u00c0M S\u1ea0CH!<\/strong> S\u1eed d\u1ee5ng n\u1eafp \u0111\u1eady, thao t\u00e1c \u0111\u00fang c\u00e1ch.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>H\u1ecfng laser\/b\u1ed9 d\u00f2<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ef7 l\u1ec7 l\u1ed7i bit (BER) t\u0103ng d\u1ea7n, c\u00f4ng su\u1ea5t th\u1ea5p, kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>DOM\/DDM (c\u00f4ng su\u1ea5t ph\u00e1t\/nh\u1eadn), m\u00e1y \u0111o BER<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u00e1m s\u00e1t DOM, \u0111\u1ea3m b\u1ea3o l\u00e0m m\u00e1t, thay module. Ch\u1ecdn s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao (v\u00ed d\u1ee5:, <strong>LINK-PP<\/strong>).<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>V\u1ea5n \u0111\u1ec1 T\u01b0\u01a1ng th\u00edch<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Module kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n, li\u00ean k\u1ebft kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng ch\u1ee7 (host), danh s\u00e1ch t\u01b0\u01a1ng th\u00edch<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>X\u00e1c minh MCL\/VLL (S\u1eed d\u1ee5ng <strong>cam k\u1ebft t\u01b0\u01a1ng th\u00edch c\u1ee7a LINK-PP<\/strong>), ki\u1ec3m tra c\u1ea5u h\u00ecnh c\u1ed5ng ch\u1ee7.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ed5n hao li\u00ean k\u1ebft qu\u00e1 m\u1ee9c<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t nh\u1eadn (Rx) th\u1ea5p, l\u1ed7i, kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00e1y \u0111o t\u1ed5n hao s\u1ee3i quang (OLTS), m\u00e1y d\u00f2 ph\u1ea3n x\u1ea1 quang th\u1eddi gian (OTDR), DOM (c\u00f4ng su\u1ea5t Rx), ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ki\u1ec3m \u0111\u1ecbnh t\u1ed5n hao s\u1ee3i quang, ki\u1ec3m tra\/l\u00e0m s\u1ea1ch \u0111\u1ea7u n\u1ed1i\/c\u00e1p, \u0111\u1ea3m b\u1ea3o n\u1eb1m trong gi\u1edbi h\u1ea1n ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t c\u1ee7a module.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>H\u01b0 h\u1ea1i do t\u0129nh \u0111i\u1ec7n (ESD)\/\u0111i\u1ec7n<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Module kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n, h\u01b0 h\u1ea1i v\u1eadt l\u00fd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng, ph\u00e1t hi\u1ec7n tr\u00ean h\u1ec7 th\u1ed1ng ch\u1ee7<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>Tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t quy tr\u00ecnh ch\u1ed1ng t\u0129nh \u0111i\u1ec7n (ESD)!<\/strong> Thao t\u00e1c c\u1ea9n th\u1eadn. Tr\u00e1nh thay th\u1ebf n\u00f3ng (hot-swap) n\u1ebfu ch\u01b0a ch\u1eafc ch\u1eafn.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Qu\u00e1 nhi\u1ec7t<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ef7 l\u1ec7 l\u1ed7i bit (BER) cao, li\u00ean k\u1ebft b\u1ea5t \u1ed5n, nhi\u1ec7t \u0111\u1ed9 cao (DOM)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>DOM\/DDM (nhi\u1ec7t \u0111\u1ed9)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u1ea3i thi\u1ec7n l\u01b0u l\u01b0\u1ee3ng kh\u00ed, l\u00e0m s\u1ea1ch l\u1ed7 th\u00f4ng gi\u00f3\/b\u1ed9 l\u1ecdc, gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9, \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng n\u1eb1m trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 Ch\u1ea9n \u0111o\u00e1n v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 b\u1ed9 thu ph\u00e1t quang:<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra nh\u1eefng \u0111i\u1ec1u r\u00f5 r\u00e0ng:<\/strong> Module \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang v\u1ecb tr\u00ed ch\u01b0a? C\u00e1p s\u1ee3i quang \u0111\u00e3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i ch\u1eafc ch\u1eafn ch\u01b0a? \u0110\u00e3 k\u1ebft n\u1ed1i \u0111\u00fang c\u1ed5ng ch\u01b0a (Tx n\u1ed1i v\u1edbi Rx)?<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra &amp; l\u00e0m s\u1ea1ch \u0111\u1ea7u n\u1ed1i:<\/strong> <em>Lu\u00f4n l\u00e0 b\u01b0\u1edbc k\u1ef9 thu\u1eadt \u0111\u1ea7u ti\u00ean.<\/em> S\u1eed d\u1ee5ng k\u00ednh hi\u1ec3n vi.<\/p><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>Thay th\u1ebf linh ki\u1ec7n (theo ph\u01b0\u01a1ng ph\u00e1p c\u00f3 h\u1ec7 th\u1ed1ng):<\/strong><\/p><ul><li><p style=\"margin: 0px;\">Ho\u00e1n \u0111\u1ed5i c\u00e1p s\u1ee3i quang gi\u1eefa c\u00e1c c\u1ed5ng \u0111\u00e3 bi\u1ebft l\u00e0 t\u1ed1t.<\/p><\/li><li><p style=\"margin: 0px;\">Ho\u00e1n \u0111\u1ed5i b\u1ed9 thu ph\u00e1t gi\u1eefa c\u00e1c c\u1ed5ng \u0111\u00e3 bi\u1ebft l\u00e0 t\u1ed1t.<\/p><\/li><li><p style=\"margin: 0px;\">Di chuy\u1ec3n b\u1ed9 thu ph\u00e1t\/c\u00e1p nghi v\u1ea5n sang m\u1ed9t c\u1ed5ng t\u1ed1t kh\u00e1c \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn.<\/p><\/li><li><p style=\"margin: 0px;\"><em>C\u00e1ch ly xem s\u1ef1 c\u1ed1 c\u00f3 li\u00ean quan \u0111\u1ebfn m\u00f4-\u0111un, c\u00e1p hay c\u1ed5ng hay kh\u00f4ng.<\/em><\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px 0px 4px;\"><strong>T\u1eadn d\u1ee5ng d\u1eef li\u1ec7u DOM\/DDM:<\/strong> \u0110\u00e2y l\u00e0 th\u00f4ng tin v\u00f4 gi\u00e1. H\u00e3y ki\u1ec3m tra:<\/p><ul><li><p style=\"margin: 0px;\"><strong>C\u00f4ng su\u1ea5t ph\u00e1t (Tx Power):<\/strong> C\u00f3 n\u1eb1m trong ph\u1ea1m vi quy \u0111\u1ecbnh (ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o\/caution cao\/th\u1ea5p) kh\u00f4ng?<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u00f4ng su\u1ea5t thu (Rx Power):<\/strong> C\u00f3 n\u1eb1m trong ph\u1ea1m vi quy \u0111\u1ecbnh v\u00e0 \u0111\u1ee7 cao h\u01a1n \u0111\u1ed9 nh\u1ea1y c\u1ee7a b\u1ed9 thu kh\u00f4ng?<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> C\u00f3 n\u1eb1m trong ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng?<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110i\u1ec7n \u00e1p:<\/strong> \u0110i\u1ec7n \u00e1p c\u1ea5p c\u00f3 b\u00ecnh th\u01b0\u1eddng kh\u00f4ng?<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra nh\u1eadt k\u00fd thi\u1ebft b\u1ecb ch\u1ee7 (Host Device Logs):<\/strong> T\u00ecm c\u00e1c th\u00f4ng b\u00e1o l\u1ed7i li\u00ean quan \u0111\u1ebfn c\u1ed5ng ho\u1eb7c m\u00f4-\u0111un c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: \u201cm\u00f4-\u0111un b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a\u201d, \u201cb\u1ed9 thu-ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d, \u201cLOS \u2013 M\u1ea5t t\u00edn hi\u1ec7u\u201d, \u201cLOL \u2013 M\u1ea5t kh\u00f3a\u201d).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch:<\/strong> Ki\u1ec3m tra l\u1ea1i k\u1ef9 l\u01b0\u1ee1ng xem m\u00f4-\u0111un c\u00f3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea l\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1eabu thi\u1ebft b\u1ecb ch\u1ee7 v\u00e0 phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m c\u1ee5 th\u1ec3 hay kh\u00f4ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110o t\u1ed5n hao li\u00ean k\u1ebft:<\/strong> N\u1ebfu c\u00f4ng su\u1ea5t thu (Rx power) th\u1ea5p v\u00e0 vi\u1ec7c l\u00e0m s\u1ea1ch kh\u00f4ng mang l\u1ea1i hi\u1ec7u qu\u1ea3, h\u00e3y s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb \u0111o t\u1ed5n hao quang (OLTS) \u0111\u1ec3 \u0111o t\u1ed5n hao \u0111\u1ea7u cu\u1ed1i.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 L\u1ee3i th\u1ebf c\u1ee7a LINK-PP: Gi\u1ea3m thi\u1ec3u r\u1ee7i ro h\u1ecfng h\u00f3c<\/strong><\/h2>\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\/6a12d98178ae4374af59f249f9d23ba4.webp\" alt=\"LINK-PP\" class=\"wp-image-5919\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6a12d98178ae4374af59f249f9d23ba4.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6a12d98178ae4374af59f249f9d23ba4-300x169.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6a12d98178ae4374af59f249f9d23ba4-1024x576.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6a12d98178ae4374af59f249f9d23ba4-768x432.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6a12d98178ae4374af59f249f9d23ba4-18x10.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao <strong>b\u1ed9 thu ph\u00e1t quang<\/strong> l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ed1i v\u1edbi \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ea1ng. <strong>LINK-PP<\/strong> C\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u1ef1ng c\u00e1c \u0111i\u1ec3m h\u1ecfng ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>L\u1ef1a ch\u1ecdn linh ki\u1ec7n nghi\u00eam ng\u1eb7t:<\/strong> S\u1eed d\u1ee5ng laser v\u00e0 b\u1ed9 d\u00f2 h\u00e0ng \u0111\u1ea7u (Tier-1) nh\u1eb1m \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m tra nghi\u00eam ng\u1eb7t:<\/strong> M\u00f4-\u0111un 100% \u0111\u01b0\u1ee3c ki\u1ec3m tra c\u00e1c th\u00f4ng s\u1ed1 hi\u1ec7u n\u0103ng (c\u00f4ng su\u1ea5t, \u0111\u1ed9 nh\u1ea1y, t\u1ef7 s\u1ed1 t\u1eaft m\u1edf, BER) v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c DOM tr\u00ean to\u00e0n d\u1ea3i nhi\u1ec7t \u0111\u1ed9.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m so\u00e1t \u00f4 nhi\u1ec5m v\u01b0\u1ee3t tr\u1ed9i:<\/strong> S\u1ea3n xu\u1ea5t v\u00e0 x\u1eed l\u00fd trong m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>B\u1ea3o v\u1ec7 ch\u1ed1ng t\u0129nh \u0111i\u1ec7n (ESD) m\u1ea1nh m\u1ebd:<\/strong> M\u1ea1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c n\u00e2ng cao nh\u1eb1m b\u1ea3o v\u1ec7 tr\u01b0\u1edbc ph\u00f3ng \u0111i\u1ec7n t\u0129nh.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch:<\/strong> Ki\u1ec3m tra r\u1ed9ng r\u00e3i tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng OEM l\u1edbn \u0111\u1ea3m b\u1ea3o t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch, gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ea5u h\u00ecnh.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H\u1ed7 tr\u1ee3 DOM\/DDM to\u00e0n di\u1ec7n:<\/strong> Cung c\u1ea5p d\u1eef li\u1ec7u thi\u1ebft y\u1ebfu cho gi\u00e1m s\u00e1t ch\u1ee7 \u0111\u1ed9ng v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u00e1c m\u1eabu \u0111\u00e1ng tin c\u1eady:<\/strong> Nh\u1eefng s\u1ea3n ph\u1ea9m ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh nh\u01b0 <strong>LINK-PP\u2019s <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\"><strong>LS-MM8510-S3C<\/strong><\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476046.htm\"><strong>LS-SM3125-10C<br><\/strong><\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/473115.htm\"><strong>LQ-M85100-SR4C<\/strong><\/a>, and <a target=\"_blank\" href=\"https:\/\/www.l-p.com\/products\/472000.htm\"><strong>LQD-CW400-FR4C<\/strong><\/a> \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng nh\u1eb1m \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u \u0111\u00f3.<\/p><\/li>\n<\/ul>\n\n\n\n<div><div widgetid=\"3ef779ac451211f099380a58fbc66727\" format=\"embedded\" data-widget-id=\"3ef779ac451211f099380a58fbc66727\" data-mode=\"production.zh\" style=\"display: block;\"><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c ch\u1ebf \u0111\u1ed9 h\u1ecfng ph\u1ed5 bi\u1ebfn c\u1ee7a b\u1ed9 thu-ph\u00e1t quang gi\u00fap chuy\u00ean gia m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 v\u00e0 nhanh ch\u00f3ng ch\u1ea9n \u0111o\u00e1n, kh\u1eafc ph\u1ee5c khi ch\u00fang x\u1ea3y ra. B\u1eb1ng c\u00e1ch \u01b0u ti\u00ean l\u00e0m s\u1ea1ch k\u1ef9 l\u01b0\u1ee1ng, x\u1eed l\u00fd c\u1ea9n th\u1eadn, ki\u1ec3m so\u00e1t m\u00f4i tr\u01b0\u1eddng, <strong>, v\u00e0 danh s\u00e1ch t\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p.<\/strong>, v\u00e0 \u2013 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u2013 l\u1ef1a ch\u1ecdn c\u00e1c m\u00f4-\u0111un ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch nh\u01b0 s\u1ea3n ph\u1ea9m t\u1eeb <strong>LINK-PP<\/strong>, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t m\u1ea1ng t\u1ed1i \u01b0u v\u00e0 t\u1ed1i \u0111a h\u00f3a l\u1ee3i t\u1ee9c \u0111\u1ea7u t\u01b0 v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quang h\u1ecdc c\u1ee7a h\u1ecd. H\u00e3y nh\u1edb r\u1eb1ng, ph\u00f2ng ng\u1eeba v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng lu\u00f4n ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n so v\u1edbi vi\u1ec7c s\u1eeda ch\u1eefa ph\u1ea3n \u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/\">\uff03LINK-PP C\u1ed9ng \u0111\u1ed3ng<\/a>               <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/sample.htm\">\uff03Y\u00eau c\u1ea7u m\u1eabu<\/a><\/p>\n\n\n\n<script src=\"https:\/\/cdn.mylandingpages.co\/widgets\/platform\/platform.widget.js\" async=\"true\"><\/script>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1c s\u1ef1 c\u1ed1 b\u1ed9 thu ph\u00e1t quang th\u01b0\u1eddng g\u1eb7p v\u00e0 \u0111\u01b0a ra c\u00e1c gi\u1ea3i ph\u00e1p th\u1ef1c ti\u1ec5n, \u0111\u1ed3ng th\u1eddi n\u00eau b\u1eadt c\u00e1ch module quang LINK-PP c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro.<\/p>","protected":false},"author":1,"featured_media":5920,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5921","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=5921"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5921\/revisions"}],"predecessor-version":[{"id":11456,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5921\/revisions\/11456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5920"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}