{"id":5257,"date":"2025-09-02T00:00:00","date_gmt":"2025-09-02T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/troubleshoot-optical-transceivers-digital-diagnostic-monitoring\/"},"modified":"2026-06-22T07:54:35","modified_gmt":"2026-06-22T07:54:35","slug":"troubleshoot-optical-transceivers-digital-diagnostic-monitoring","status":"publish","type":"post","link":"https:\/\/resources.l-p.com\/vi\/knowledge-center\/troubleshoot-optical-transceivers-digital-diagnostic-monitoring","title":{"rendered":"Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (DDM) trong c\u00e1c m\u00f4-\u0111un quang: C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p \u0111\u1ea7y \u0111\u1ee7"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8.webp\" alt=\"How to troubleshoot optical transceivers using Digital Diagnostic Monitoring\" class=\"wp-image-3602\" srcset=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8.webp 1200w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-300x178.webp 300w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-1024x608.webp 1024w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-768x456.webp 768w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/ab3359e13a2e4a3787c3d15c9e2935d8-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (DDM)<\/strong>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>Gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1 (DOM)<\/strong>, l\u00e0 m\u1ed9t t\u00ednh n\u0103ng quan tr\u1ecdng trong c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">optical transceivers<\/a>. N\u00f3 cho ph\u00e9p gi\u00e1m s\u00e1t theo th\u1eddi gian th\u1ef1c c\u00e1c th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh quan tr\u1ecdng, gi\u00fap duy tr\u00ec hi\u1ec7u su\u1ea5t m\u1ea1ng, ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 s\u1edbm v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 DDM c\u00f9ng h\u01b0\u1edbng d\u1eabn th\u1ef1c t\u1ebf d\u00e0nh cho qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00e2u h\u1ecfi 1: Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (DDM) l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> DDM l\u00e0 m\u1ed9t giao di\u1ec7n chu\u1ea9n h\u00f3a tr\u00ean c\u00e1c b\u1ed9 thu ph\u00e1t quang (SFP, SFP+, QSFP, v.v.) cung c\u1ea5p kh\u1ea3 n\u0103ng truy c\u1eadp theo th\u1eddi gian th\u1ef1c v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 quan tr\u1ecdng, v\u00ed d\u1ee5 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Nhi\u1ec7t \u0111\u1ed9 b\u1ed9 thu ph\u00e1t<\/strong> \u2013 gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb.<\/p><\/li><li><p><strong>Supply Voltage<\/strong> \u2013 theo d\u00f5i \u0111i\u1ec7n \u00e1p cung c\u1ea5p cho module.<\/p><\/li><li><p><strong>D\u00f2ng thi\u00ean \u00e1p laser<\/strong> \u2013 \u0111o d\u00f2ng \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n \u0111i-\u1ed1t laser.<\/p><\/li><li><p><strong>C\u00f4ng su\u1ea5t ph\u00e1t (TX)<\/strong> \u2013 gi\u00e1m s\u00e1t c\u00f4ng su\u1ea5t quang \u0111\u1ea7u ra.<\/p><\/li><li><p><strong>C\u00f4ng su\u1ea5t nh\u1eadn (RX)<\/strong> \u2013 \u0111o c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u quang \u0111\u1ea7u v\u00e0o.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DDM h\u1ed7 tr\u1ee3 qu\u1ea3n l\u00fd m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng v\u00e0 gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00e2u h\u1ecfi 2: T\u1ea1i sao DDM l\u1ea1i quan tr\u1ecdng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">DDM<\/a> n\u00e2ng cao \u0111\u1ed9 tin c\u1eady m\u1ea1ng v\u00e0 hi\u1ec7u qu\u1ea3 v\u1eadn h\u00e0nh b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>Ph\u00e1t Hi\u1ec7n S\u1ef1 C\u1ed1 Ch\u1ee7 \u0110\u1ed9ng<\/strong> \u2013 C\u1ea3nh b\u00e1o s\u1edbm c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n nh\u01b0 qu\u00e1 nhi\u1ec7t ho\u1eb7c suy gi\u1ea3m t\u00edn hi\u1ec7u.<\/p><\/li><li><p><strong>\u0110\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1<\/strong> \u2013 Nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh v\u00e0 c\u00f4 l\u1eadp c\u00e1c b\u1ed9 thu ph\u00e1t l\u1ed7i.<\/p><\/li><li><p><strong>C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t m\u1ea1ng<\/strong> \u2013 Gi\u00e1m s\u00e1t li\u00ean t\u1ee5c \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c s\u1ef1 c\u1ed1 b\u1ea5t ng\u1edd.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00e2u h\u1ecfi 3: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c module quang h\u1ed7 tr\u1ee3 DDM v\u00e0 c\u00e1c module quang ti\u00eau chu\u1ea9n l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> C\u00e1c b\u1ed9 thu ph\u00e1t quang ti\u00eau chu\u1ea9n ch\u1ec9 truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u quang m\u00e0 kh\u00f4ng cung c\u1ea5p th\u00f4ng tin tr\u1ea1ng th\u00e1i chi ti\u1ebft. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">C\u00e1c b\u1ed9 thu ph\u00e1t quang h\u1ed7 tr\u1ee3 DDM<\/a>, tuy nhi\u00ean, gi\u00e1m s\u00e1t v\u00e0 b\u00e1o c\u00e1o c\u00e1c th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh quan tr\u1ecdng theo th\u1eddi gian th\u1ef1c, ch\u1eb3ng h\u1ea1n nh\u01b0 nhi\u1ec7t \u0111\u1ed9, \u0111i\u1ec7n \u00e1p, d\u00f2ng thi\u00ean \u00e1p laser, c\u00f4ng su\u1ea5t TX v\u00e0 c\u00f4ng su\u1ea5t RX. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 ch\u1ee7 \u0111\u1ed9ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00e2u h\u1ecfi 4: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c minh m\u1ed9t b\u1ed9 thu ph\u00e1t h\u1ed7 tr\u1ee3 DDM tr\u01b0\u1edbc khi mua?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> \u0110\u1ec3 x\u00e1c minh h\u1ed7 tr\u1ee3 DDM:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ec3m tra b\u1ea3ng d\u1eef li\u1ec7u s\u1ea3n ph\u1ea9m \u0111\u1ec3 t\u00ecm t\u1eeb kh\u00f3a \u201cDDM\u201d ho\u1eb7c \u201cDOM\u201d.<\/p><\/li><li><p>X\u00e1c minh <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/knowledge-center\/sfp-8472-standard-explained-ddm-for-optical-transceivers\/\">T\u00ednh tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n SFF-8472<\/a>.<\/p><\/li><li><p>Tham kh\u1ea3o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 cung c\u1ea5p, v\u00ed d\u1ee5 nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">c\u00e1c m\u00f4-\u0111un SFP LINK-PP<\/a>, trong \u0111\u00f3 n\u00eau r\u00f5 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 DDM.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705<\/strong> C\u00e2u h\u1ecfi 5: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecdc d\u1eef li\u1ec7u DDM t\u1eeb c\u00e1c module SFP, SFP+ ho\u1eb7c QSFP?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> D\u1eef li\u1ec7u DDM c\u00f3 th\u1ec3 truy c\u1eadp qua giao di\u1ec7n I\u00b2C hai d\u00e2y tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n SFF-8472. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc d\u1eef li\u1ec7u n\u00e0y b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Giao di\u1ec7n d\u00f2ng l\u1ec7nh (CLI)<\/strong> tr\u00ean c\u00e1c switch ho\u1eb7c router.<\/p><\/li><li><p><strong>H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd m\u1ea1ng (NMS)<\/strong> \u0111\u1ec3 gi\u00e1m s\u00e1t t\u1eadp trung.<\/p><\/li><li><p>Ph\u1ea7n m\u1ec1m gi\u00e1m s\u00e1t chuy\u00ean d\u1ee5ng ho\u1eb7c c\u00f4ng c\u1ee5 ch\u1ea9n \u0111o\u00e1n do nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ed9 thu ph\u00e1t cung c\u1ea5p.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00e2u h\u1ecfi 6: T\u00f4i n\u00ean l\u00e0m g\u00ec n\u1ebfu c\u00e1c th\u00f4ng s\u1ed1 DDM v\u01b0\u1ee3t ng\u01b0\u1ee1ng cho ph\u00e9p?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> N\u1ebfu c\u00e1c gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng an to\u00e0n, h\u00e3y xem x\u00e9t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft v\u00e0 ho\u1ea1t \u0111\u1ed9ng giao di\u1ec7n <strong>\u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/strong> (nhi\u1ec7t \u0111\u1ed9, l\u01b0u l\u01b0\u1ee3ng kh\u00ed).<\/p><\/li><li><p>\u0110\u1ea3m b\u1ea3o ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh <strong>c\u1ea5p cho thi\u1ebft b\u1ecb.<\/strong> Thay th\u1ebf b\u1ed9 thu ph\u00e1t.<\/p><\/li><li><p><strong>n\u1ebfu n\u00f3 li\u00ean t\u1ee5c xu\u1ea5t hi\u1ec7n s\u1ef1 c\u1ed1.<\/strong> Ph\u1ea3n \u1ee9ng k\u1ecbp th\u1eddi s\u1ebd ng\u0103n ng\u1eeba th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng v\u00e0 h\u01b0 h\u1ecfng ph\u1ea7n c\u1ee9ng ti\u1ec1m \u1ea9n.<br\/>C\u00e2u h\u1ecfi 7: D\u1eef li\u1ec7u DDM b\u1ea5t th\u01b0\u1eddng c\u00f3 g\u00e2y gi\u00e1n \u0111o\u1ea1n m\u1ea1ng kh\u00f4ng?.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>\u0110\u00e1p \u00e1n: B\u1ea3n th\u00e2n DDM kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n m\u1ea1ng. N\u00f3 ch\u1ec9 b\u00e1o c\u00e1o tr\u1ea1ng th\u00e1i c\u1ee7a b\u1ed9 thu ph\u00e1t. Tuy nhi\u00ean, c\u00e1c gi\u00e1 tr\u1ecb b\u1ea5t th\u01b0\u1eddng k\u00e9o d\u00e0i c\u00f3 th\u1ec3 cho th\u1ea5y c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ea7n c\u1ee9ng; n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd, nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn suy gi\u1ea3m hi\u1ec7u su\u1ea5t ho\u1eb7c th\u1ea5t b\u1ea1i m\u1ea1ng.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u h\u1ecfi 8: Li\u1ec7u DDM c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n s\u1ef1 c\u1ed1 b\u1ed9 thu ph\u00e1t kh\u00f4ng?.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>M\u1eb7c d\u00f9 DDM kh\u00f4ng th\u1ec3 d\u1ef1 \u0111o\u00e1n s\u1ef1 c\u1ed1 v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i, nh\u01b0ng n\u00f3 cung c\u1ea5p c\u00e1c xu h\u01b0\u1edbng nh\u01b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> nhi\u1ec7t \u0111\u1ed9 t\u0103ng d\u1ea7n <strong>c\u00f4ng su\u1ea5t TX gi\u1ea3m d\u1ea7n<\/strong>, <strong>d\u00f2ng laser b\u1ea5t th\u01b0\u1eddng<\/strong>, or <strong>\u0111\u1ec3 ch\u1ec9 ra c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n. B\u1ea3o tr\u00ec ch\u1ee7 \u0111\u1ed9ng d\u1ef1a tr\u00ean d\u1eef li\u1ec7u DDM gi\u00fap n\u00e2ng cao \u0111\u1ed9 tin c\u1eady m\u1ea1ng.<\/strong> C\u00e2u h\u1ecfi 9: Li\u1ec7u d\u1eef li\u1ec7u DDM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t t\u1eadp trung th\u00f4ng qua NMS kh\u00f4ng?.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00f3. D\u1eef li\u1ec7u DDM t\u1eeb nhi\u1ec1u b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thu th\u1eadp v\u00e0 hi\u1ec3n th\u1ecb tr\u00ean m\u1ed9t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd m\u1ea1ng (NMS) <strong>. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p gi\u00e1m s\u00e1t t\u1eadp trung, ph\u00e2n t\u00edch xu h\u01b0\u1edbng v\u00e0 c\u1ea3nh b\u00e1o s\u1edbm v\u1ec1 c\u00e1c s\u1ef1 c\u1ed1 ti\u1ec1m \u1ea9n tr\u00ean c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn.<\/strong>. C\u00e2u h\u1ecfi 10: DDM h\u1ed7 tr\u1ee3 c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn nh\u01b0 th\u1ebf n\u00e0o?.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705<\/strong>Tr\u00ean c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn, vi\u1ec7c ki\u1ec3m tra th\u1ee7 c\u00f4ng l\u00e0 kh\u00f4ng kh\u1ea3 thi. DDM cho ph\u00e9p gi\u00e1m s\u00e1t t\u1eeb xa h\u00e0ng tr\u0103m ho\u1eb7c h\u00e0ng ngh\u00ecn b\u1ed9 thu ph\u00e1t theo th\u1eddi gian th\u1ef1c, gi\u00fap c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng duy tr\u00ec hi\u1ec7u su\u1ea5t cao v\u00e0 gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> C\u00e2u h\u1ecfi 11: DDM ho\u1ea1t \u0111\u1ed9ng c\u00f9ng ph\u1ea7n m\u1ec1m gi\u00e1m s\u00e1t trong th\u1ef1c t\u1ebf nh\u01b0 th\u1ebf n\u00e0o?.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 <\/strong>C\u00e1c l\u1ee3i \u00edch th\u1ef1c t\u1ebf bao g\u1ed3m:<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Gi\u00e1m s\u00e1t s\u1ee9c kh\u1ecfe li\u00ean t\u1ee5c c\u1ee7a c\u00e1c b\u1ed9 thu ph\u00e1t.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea3o tr\u00ec d\u1ef1 \u0111o\u00e1n th\u00f4ng qua vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c xu h\u01b0\u1edbng hi\u1ec7u su\u1ea5t.<\/p><\/li><li><p>C\u00e1ch ly v\u00e0 thay th\u1ebf nhanh ch\u00f3ng c\u00e1c module \u0111ang g\u1eb7p s\u1ef1 c\u1ed1.<\/p><\/li><li><p>N\u00e2ng cao \u0111\u1ed9 tin c\u1eady v\u00e0 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c c\u1ee7a m\u1ea1ng.<\/p><\/li><li><p>C\u00e1c tr\u01b0\u1eddng h\u1ee3p th\u1ef1c t\u1ebf cho th\u1ea5y c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean \u0111\u00e3 gi\u1ea3m th\u1eddi gian ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1 t\u1edbi 40% nh\u1edd c\u00e1c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t h\u1ed7 tr\u1ee3 DDM.<br\/>l\u00e0 m\u1ed9t t\u00ednh n\u0103ng thi\u1ebft y\u1ebfu tr\u00ean c\u00e1c b\u1ed9 thu ph\u00e1t quang hi\u1ec7n \u0111\u1ea1i, h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t theo th\u1eddi gian th\u1ef1c, b\u1ea3o tr\u00ec ch\u1ee7 \u0111\u1ed9ng v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1. DDM n\u00e2ng cao \u0111\u1ed9 tin c\u1eady m\u1ea1ng tr\u00ean c\u00e1c module t\u1ed1c \u0111\u1ed9 cao nh\u01b0 SFP, SFP+, QSFP v\u00e0 c\u00e1c lo\u1ea1i kh\u00e1c. H\u00e3y kh\u00e1m ph\u00e1.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>K\u1ebft lu\u1eadn:<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (DDM)<\/strong> c\u00e1c b\u1ed9 thu ph\u00e1t quang h\u1ed7 tr\u1ee3 DDM c\u1ee7a LINK-PP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\u0111\u1ec3 c\u00f3 c\u00e1c module ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t \u0111\u1ea7y \u0111\u1ee7.<\/a> C\u00e1c s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn tr\u00ean b\u1ed9 thu ph\u00e1t quang v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >See Also<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">T\u1ea7m quan tr\u1ecdng c\u1ee7a gi\u00e1m s\u00e1t k\u1ef9 thu\u1eadt s\u1ed1 trong c\u00e1c b\u1ed9 thu ph\u00e1t quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/vi\/knowledge-center\/common-optical-transceiver-failures-and-solutions\/\">H\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 c\u00f4ng ngh\u1ec7 b\u1ed9 thu ph\u00e1t quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/vi\/knowledge-center\/how-optical-transceivers-transmit-data\/\">Qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u trong b\u1ed9 thu ph\u00e1t quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/vi\/overview-of-optical-transceivers\/\">M\u1eb9o duy tr\u00ec hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u cho b\u1ed9 thu ph\u00e1t quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resources.l-p.com\/vi\/knowledge-center\/optical-transceiver-performance-tests\/\">M\u1eb9o \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u c\u1ee7a b\u1ed9 thu ph\u00e1t quang<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 b\u1ed9 thu ph\u00e1t quang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1edd Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1. Theo d\u00f5i d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 s\u1edbm v\u00e0 duy tr\u00ec \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ea1ng.<\/p>","protected":false},"author":1,"featured_media":5256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts\/5257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/comments?post=5257"}],"version-history":[{"count":4,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts\/5257\/revisions"}],"predecessor-version":[{"id":11196,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts\/5257\/revisions\/11196"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/media\/5256"}],"wp:attachment":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/media?parent=5257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/categories?post=5257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/tags?post=5257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}