{"id":3908,"date":"2025-11-14T00:00:00","date_gmt":"2025-11-14T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/intersymbol-interference-isi-in-digital-communication-explained\/"},"modified":"2026-06-22T05:04:56","modified_gmt":"2026-06-22T05:04:56","slug":"intersymbol-interference-isi-in-digital-communication-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/intersymbol-interference-isi-in-digital-communication-explained","title":{"rendered":"Nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI) trong truy\u1ec1n th\u00f4ng k\u1ef9 thu\u1eadt s\u1ed1 l\u00e0 g\u00ec"},"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\/8c7b2e4596514f36b6bfe829700f6dd5.webp\" alt=\"What is intersymbol interference in digital communication\" class=\"wp-image-3906\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8c7b2e4596514f36b6bfe829700f6dd5.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8c7b2e4596514f36b6bfe829700f6dd5-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8c7b2e4596514f36b6bfe829700f6dd5-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8c7b2e4596514f36b6bfe829700f6dd5-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8c7b2e4596514f36b6bfe829700f6dd5-18x12.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, d\u1eef li\u1ec7u di chuy\u1ec3n t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111i\u1ec3m B d\u01b0\u1edbi d\u1ea1ng m\u1ed9t chu\u1ed7i xung \u0111i\u1ec7n ho\u1eb7c quang. V\u1ec1 l\u00fd t\u01b0\u1edfng, b\u1ed9 thu nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng v\u00e0 kh\u00f4ng th\u1ec3 nh\u1ea7m l\u1eabn: \u201c1\u201d l\u00e0 m\u1ed9t xung cao, c\u00f2n \u201c0\u201d l\u00e0 m\u1ed9t xung th\u1ea5p. Nh\u01b0ng tr\u00ean th\u1ef1c t\u1ebf, h\u00e0nh tr\u00ecnh n\u00e0y r\u1ea5t l\u1ed9n x\u1ed9n. T\u00edn hi\u1ec7u b\u1ecb b\u00f3p m\u00e9o, b\u1ecb k\u00e9o d\u00e0i v\u00e0 b\u1ecb m\u1edd \u0111i. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y\u2014m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m ngh\u1ebdn ch\u00ednh trong truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao\u2014\u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>Can nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng cho trung t\u00e2m d\u1eef li\u1ec7u, vi\u1ec5n th\u00f4ng ho\u1eb7c b\u1ea5t k\u1ef3 giao di\u1ec7n k\u1ef9 thu\u1eadt s\u1ed1 t\u1ed1c \u0111\u1ed9 cao n\u00e0o, vi\u1ec7c hi\u1ec3u r\u00f5 ISI kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn\u2014m\u00e0 l\u00e0 \u0111i\u1ec1u b\u1eaft bu\u1ed9c. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd gi\u1ea3i th\u00edch chi ti\u1ebft <strong>ISI l\u00e0 g\u00ec<\/strong>, t\u1ea1i sao hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y x\u1ea3y ra, c\u00e1ch ch\u00fang ta ch\u1ed1ng l\u1ea1i n\u00f3 v\u00e0 vai tr\u00f2 then ch\u1ed1t c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>module quang<br><\/strong><\/a> trong cu\u1ed9c chi\u1ebfn n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Can nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI)<\/strong> x\u1ea3y ra khi t\u00edn hi\u1ec7u t\u1eeb c\u00e1c bit kh\u00e1c nhau tr\u1ed9n l\u1eabn v\u00e0o nhau. \u0110i\u1ec1u n\u00e0y khi\u1ebfn thi\u1ebft b\u1ecb kh\u00f3 \u0111\u1ecdc d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p><\/li><li><p>Vi\u1ec7c lan r\u1ed9ng xung, c\u00e1c khi\u1ebfm khuy\u1ebft c\u1ee7a k\u00eanh v\u00e0 s\u1ef1 kh\u00f4ng kh\u1edbp tr\u1edf kh\u00e1ng l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra ISI. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i khi truy\u1ec1n th\u00f4ng \u0111i\u1ec7p.<\/p><\/li><li><p>B\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m ISI b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt c\u00e2n b\u1eb1ng (equalization), l\u1ecdc v\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a t\u1ed1t h\u01a1n. C\u00e1c b\u01b0\u1edbc n\u00e0y gi\u00fap l\u00e0m r\u00f5 t\u00edn hi\u1ec7u v\u00e0 gi\u1ea3m l\u1ed7i.<\/p><\/li><li><p>Hi\u1ec3u bi\u1ebft v\u1ec1 ISI gi\u00fap b\u1ea1n nh\u1eadn ra v\u00ec sao t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi truy\u1ec1n th\u00f4ng hi\u1ec7u qu\u1ea3 trong c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u0111i\u1ec7n tho\u1ea1i v\u00e0 m\u00e1y t\u00ednh.<\/p><\/li><li><p>Ki\u1ec3m so\u00e1t ISI hi\u1ec7u qu\u1ea3 c\u00f3 th\u1ec3 mang l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c g\u1ecdi t\u1ed1t h\u01a1n, t\u1ed1c \u0111\u1ed9 internet nhanh h\u01a1n v\u00e0 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n h\u01a1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 X\u00e1c \u0111\u1ecbnh v\u1ea5n \u0111\u1ec1: ISI ch\u00ednh x\u00e1c l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Can nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI)<\/strong> l\u00e0 m\u1ed9t d\u1ea1ng b\u00f3p m\u00e9o t\u00edn hi\u1ec7u, trong \u0111\u00f3 m\u1ed9t k\u00fd hi\u1ec7u (ho\u1eb7c bit) can thi\u1ec7p v\u00e0o c\u00e1c k\u00fd hi\u1ec7u ti\u1ebfp theo. Hi\u1ec7u \u1ee9ng \u201ck\u00e9o d\u00e0i\u201d n\u00e0y khi\u1ebfn b\u1ed9 thu kh\u00f3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c m\u1ed9t bit \u0111\u01b0\u1ee3c truy\u1ec1n c\u00f3 ph\u1ea3i l\u00e0 \u201c1\u201d hay \u201c0\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n \u0111ang \u1edf trong m\u1ed9t h\u1ed9i tr\u01b0\u1eddng l\u1edbn, vang v\u1ecdng. Ai \u0111\u00f3 h\u00e9t hai t\u1eeb \u201cM\u00c8O\u201d v\u00e0 \u201cCH\u00d3\u201d li\u00ean ti\u1ebfp r\u1ea5t nhanh. B\u1ea1n c\u00f3 th\u1ec3 nghe th\u00e0nh \u201cM\u00c8-CH\u00d3-O\u201d, trong \u0111\u00f3 \u00e2m \u2018\u00ca\u2019 k\u00e9o d\u00e0i t\u1eeb \u201cM\u00c8O\u201d can thi\u1ec7p v\u00e0o ph\u1ea7n \u0111\u1ea7u c\u1ee7a \u201cCH\u00d3.\u201d V\u1ec1 m\u1eb7t d\u1eef li\u1ec7u, m\u1ed9t xung k\u00e9o d\u00e0i \u0111\u1ea1i di\u1ec7n cho \u201c1\u201d c\u00f3 th\u1ec3 tr\u00e0n sang kho\u1ea3ng th\u1eddi gian d\u00e0nh ri\u00eang cho \u201c0\u201d ti\u1ebfp theo, khi\u1ebfn b\u1ed9 thu nh\u1ea7m n\u00f3 l\u00e0 m\u1ed9t \u201c1\u201d kh\u00e1c.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u1ea3 \u1ee9ng d\u1ee5ng Ethernet v\u00e0 OTN. <strong>H\u1eadu qu\u1ea3 cu\u1ed1i c\u00f9ng l\u00e0 g\u00ec?<\/strong> <strong>L\u1ed7i bit<\/strong>, D\u1eef li\u1ec7u b\u1ecb h\u1ecfng, th\u00f4ng l\u01b0\u1ee3ng gi\u1ea3m v\u00e0 h\u1ec7 th\u1ed1ng tr\u1edf n\u00ean thi\u1ebfu \u0111\u1ed9 tin c\u1eady nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 C\u00e1c nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu: \u0110i\u1ec1u g\u00ec g\u00e2y ra can nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI)?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ba y\u1ebfu t\u1ed1 ch\u00ednh ph\u1ed1i h\u1ee3p g\u00e2y ra ISI trong c\u00e1c k\u00eanh truy\u1ec1n th\u00f4ng:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>H\u1ea1n ch\u1ebf b\u0103ng th\u00f4ng (khi\u1ebfm khuy\u1ebft k\u00eanh):<\/strong> Kh\u00f4ng k\u00eanh v\u1eadt l\u00fd n\u00e0o (nh\u01b0 d\u00e2y \u0111\u1ed3ng ho\u1eb7c s\u1ee3i quang) c\u00f3 b\u0103ng th\u00f4ng v\u00f4 h\u1ea1n. H\u1ea1n ch\u1ebf n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ed9 l\u1ecdc th\u00f4ng th\u1ea5p, l\u00e0m m\u01b0\u1ee3t c\u00e1c xung vu\u00f4ng s\u1eafc n\u00e9t. Vi\u1ec7c l\u00e0m m\u01b0\u1ee3t n\u00e0y khi\u1ebfn c\u00e1c xung lan r\u1ed9ng theo th\u1eddi gian, ch\u1ed3ng l\u1ea5n l\u00ean c\u00e1c xung l\u00e2n c\u1eadn.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Truy\u1ec1n s\u00f3ng \u0111a \u0111\u01b0\u1eddng (Multipath Propagation):<\/strong> Trong truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y, t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 \u0111i theo nhi\u1ec1u \u0111\u01b0\u1eddng \u0111\u1ebfn b\u1ed9 thu (v\u00ed d\u1ee5: ph\u1ea3n x\u1ea1 t\u1eeb c\u00e1c t\u00f2a nh\u00e0). C\u00e1c b\u1ea3n sao t\u00edn hi\u1ec7u b\u1ecb tr\u1ec5 n\u00e0y \u0111\u1ebfn v\u00e0o c\u00e1c th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau v\u00e0 can thi\u1ec7p v\u00e0o t\u00edn hi\u1ec7u ch\u00ednh.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u00e1n s\u1eafc trong s\u1ee3i quang:<\/strong> \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong quang h\u1ecdc t\u1ed1c \u0111\u1ed9 cao. N\u00f3 x\u1ea3y ra khi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau c\u1ee7a t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng (c\u00e1c b\u01b0\u1edbc s\u00f3ng ho\u1eb7c mode kh\u00e1c nhau) di chuy\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 h\u01a1i kh\u00e1c nhau d\u1ecdc theo s\u1ee3i quang, khi\u1ebfn xung n\u1edf r\u1ed9ng khi truy\u1ec1n \u0111i. Vi\u1ec7c ki\u1ec3m so\u00e1t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/dispersion-in-optical-transceiver-signal-clarity-and-management\/\"><strong>t\u00e1n s\u1eafc s\u1eafc th\u00e1i v\u00e0 t\u00e1n s\u1eafc mode<\/strong><\/a> l\u00e0 th\u00e1ch th\u1ee9c quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i.<\/p><\/li>\n<\/ol>\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\/12fc202fdee44782a4d6e22dedc2ac56.webp\" alt=\"Intersymbol Interference\" class=\"wp-image-3907\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/12fc202fdee44782a4d6e22dedc2ac56.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/12fc202fdee44782a4d6e22dedc2ac56-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/12fc202fdee44782a4d6e22dedc2ac56-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/12fc202fdee44782a4d6e22dedc2ac56-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/12fc202fdee44782a4d6e22dedc2ac56-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 Ph\u1ea3n c\u00f4ng: C\u00e1c k\u1ef9 thu\u1eadt ch\u00ednh \u0111\u1ec3 gi\u1ea3m thi\u1ec3u ISI<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 \u0111\u00e3 ph\u00e1t tri\u1ec3n nhi\u1ec1u chi\u1ebfn l\u01b0\u1ee3c m\u1ea1nh m\u1ebd nh\u1eb1m ch\u1ed1ng l\u1ea1i ISI v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng k\u1ef9 thu\u1eadt ph\u1ed5 bi\u1ebfn nh\u1ea5t:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>K\u1ef9 thu\u1eadt<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<br><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u00e2n b\u1eb1ng (Equalization)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng m\u1ed9t b\u1ed9 l\u1ecdc (b\u1ed9 c\u00e2n b\u1eb1ng) t\u1ea1i b\u1ed9 thu \u0111\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c c\u00e1c hi\u1ec7u \u1ee9ng b\u00f3p m\u00e9o do k\u00eanh g\u00e2y ra. N\u00f3 \u201c\u0111\u1ecbnh h\u00ecnh l\u1ea1i\u201d t\u00edn hi\u1ec7u.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n th\u00f4ng c\u00f3 d\u00e2y (Ethernet, Backplane), b\u1ed9 thu quang.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/fec-forward-error-correction-in-optical-communication\/\"><strong>S\u1eeda l\u1ed7i ti\u1ebfn (FEC)<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u00eam d\u1eef li\u1ec7u d\u01b0 th\u1eeba (m\u00e3 s\u1eeda l\u1ed7i) v\u00e0o t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n, cho ph\u00e9p b\u1ed9 thu ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda m\u1ed9t s\u1ed1 l\u1ed7i gi\u1edbi h\u1ea1n m\u00e0 kh\u00f4ng c\u1ea7n truy\u1ec1n l\u1ea1i.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft y\u1ebfu cho c\u00e1c chu\u1ea9n t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i nh\u01b0 400GbE v\u00e0 800GbE.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u00e1c \u0111\u1ecbnh d\u1ea1ng \u0111i\u1ec1u ch\u1ebf ti\u00ean ti\u1ebfn<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thay v\u00ec ch\u1ec9 d\u00f9ng \u0111i\u1ec1u ch\u1ebf kh\u00f3a b\u1eadt-t\u1eaft (OOK), c\u00e1c s\u01a1 \u0111\u1ed3 nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\/\"><strong>PAM4<\/strong><\/a> (\u0110i\u1ec1u ch\u1ebf bi\u00ean \u0111\u1ed9 xung 4 m\u1ee9c) truy\u1ec1n nhi\u1ec1u bit h\u01a1n m\u1ed7i k\u00fd hi\u1ec7u, t\u1eeb \u0111\u00f3 l\u00e0m ch\u1eadm t\u1ed1c \u0111\u1ed9 k\u00fd hi\u1ec7u t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u nh\u1ea5t \u0111\u1ecbnh, gi\u00fap gi\u1ea3m kh\u1ea3 n\u0103ng b\u1ecb ISI.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, b\u1ed9 nh\u1edb DDR5, quang h\u1ecdc 400G+.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>**<strong>L\u1ef1a ch\u1ecdn linh ki\u1ec7n ph\u00f9 h\u1ee3p<\/strong> **<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng c\u00e1c module quang, <strong>ch\u1ecbu t\u00e1n s\u1eafc t\u1ed1t<\/strong> l\u00e0 b\u01b0\u1edbc c\u01a1 b\u1ea3n \u0111\u1ea7u ti\u00ean. M\u1ed9t module v\u01b0\u1ee3t tr\u1ed9i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1eeb \u0111\u1ea7u nh\u1eb1m t\u1ed1i thi\u1ec3u h\u00f3a c\u00e1c y\u1ebfu t\u1ed1 g\u00e2y ra ISI.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ea5t c\u1ea3 c\u00e1c li\u00ean k\u1ebft s\u1ee3i quang t\u1ed1c \u0111\u1ed9 cao.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi b\u1ea1n mu\u1ed1n <strong>t\u1ed1i \u01b0u h\u00f3a t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u trong trung t\u00e2m d\u1eef li\u1ec7u<\/strong>, vi\u1ec7c k\u1ebft h\u1ee3p FEC m\u1ea1nh v\u00e0 c\u00e1c module quang hi\u1ec7u su\u1ea5t cao th\u01b0\u1eddng l\u00e0 chi\u1ebfn l\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 Module quang: H\u00e0ng r\u00e0o ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean ch\u1ed1ng l\u1ea1i ISI<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang<\/strong><\/a> l\u00e0 tr\u00e1i tim c\u1ee7a m\u1ecdi li\u00ean k\u1ebft s\u1ee3i quang, th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n sang \u00e1nh s\u00e1ng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Thi\u1ebft k\u1ebf c\u1ee7a n\u00f3 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu ISI c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u1eb7c bi\u1ec7t khi ch\u00fang ta h\u01b0\u1edbng t\u1edbi c\u00e1c t\u1ed1c \u0111\u1ed9 400G, 800G v\u00e0 cao h\u01a1n n\u1eefa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n, <strong>\u1ea3nh h\u01b0\u1edfng c\u1ee7a <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/chromatic-dispersion-cd-in-fiber-optics-signal-impact\/\"><strong>t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9<\/strong><\/a> tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng h\u01a1n. M\u1ed9t xung r\u00f5 r\u00e0ng \u1edf t\u1ed1c \u0111\u1ed9 10Gbps c\u00f3 th\u1ec3 b\u1ecb k\u00e9o d\u00e0i ho\u00e0n to\u00e0n kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c \u1edf t\u1ed1c \u0111\u1ed9 100Gbps tr\u00ean c\u00f9ng m\u1ed9t kho\u1ea3ng c\u00e1ch s\u1ee3i quang. \u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac ch\u1ea5t l\u01b0\u1ee3ng c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc c\u1ee7a b\u1ea1n t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c t\u00ednh n\u0103ng then ch\u1ed1t trong m\u1ed9t module quang t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i nh\u1eb1m ch\u1ed1ng l\u1ea1i ISI bao g\u1ed3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>B\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1 hi\u1ec7u n\u0103ng cao (DSP):<\/strong> N\u00e2ng cao <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\"><strong>B\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1 (DSP)<\/strong><\/a> hi\u1ec7n \u0111\u00e3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n trong c\u00e1c module t\u1ed1c \u0111\u1ed9 cao. Ch\u00fang th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng quan tr\u1ecdng nh\u01b0 b\u00f9 tr\u1eeb \u0111\u1ed9 t\u00e1n s\u1eafc \u0111i\u1ec7n t\u1eed (EDC), v\u1ed1n ch\u1ee7 \u0111\u1ed9ng \u0111\u1ea3o ng\u01b0\u1ee3c hi\u1ec7n t\u01b0\u1ee3ng ISI do t\u00e1n s\u1eafc g\u00e2y ra, c\u00f9ng v\u1edbi c\u00e2n b\u1eb1ng v\u00e0 gi\u1ea3i m\u00e3 FEC.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Laser ch\u1ecbu t\u00e1n s\u1eafc t\u1ed1t:<\/strong> Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c laser c\u00f3 \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t cao, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1eefng laser \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c h\u1ec7 th\u1ed1ng quang h\u1ecdc \u0111\u1ed3ng pha, v\u1ec1 b\u1ea3n ch\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ki\u1ec3m so\u00e1t b\u01b0\u1edbc s\u00f3ng ch\u00ednh x\u00e1c:<\/strong> For <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-dwdm-explaining-dense-wavelength-division-multiplexing\/\"><strong>\u0110a b\u01b0\u1edbc s\u00f3ng m\u1eadt \u0111\u1ed9 cao (DWDM)<\/strong><\/a> trong c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng ch\u00ednh x\u00e1c l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t nh\u1eb1m gi\u1ea3m thi\u1ec3u \u1ea3nh h\u01b0\u1edfng c\u1ee7a t\u00e1n s\u1eafc tr\u00ean to\u00e0n b\u1ed9 ph\u1ed5.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 m\u1ea1ng c\u1ea7n c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u n\u0103ng cao, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang module quang h\u1ecdc l\u00e0 quy\u1ebft \u0111\u1ecbnh quan tr\u1ecdng nh\u1ea5t. \u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a> th\u1ec3 hi\u1ec7n chuy\u00ean m\u00f4n c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ef1 ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o: Module \u0111\u1ed3ng pha LINK-PP 400G-ZR+<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/data-center-interconnect-definition-benefits-and-role-of-optical-modules\/\"><strong>k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u (DCI)<\/strong><\/a> v\u00e0 m\u1ea1ng \u0111\u00f4 th\u1ecb (metro), module quang h\u1ecdc \u0111\u1ed3ng pha <strong>LINK-PP 400G-ZR+<\/strong> l\u00e0 m\u1ed9t v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u cho vi\u1ec7c kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng ISI \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p ngay trong ph\u1ea7n c\u1ee9ng. Module n\u00e0y t\u1eadn d\u1ee5ng m\u1ed9t b\u1ed9 DSP m\u1ea1nh m\u1ebd \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u00f9 tr\u1eeb \u0111\u1ed9 t\u00e1n s\u1eafc \u0111i\u1ec7n t\u1eed tinh vi, t\u1eeb \u0111\u00f3 lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng <strong>ISI do t\u00e1n s\u1eafc s\u1eafc m\u00e0u g\u00e2y ra<\/strong> tr\u00ean kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 80 km. B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn m\u1ed9t th\u00e0nh ph\u1ea7n nh\u01b0 <strong>LINK-PP 400G-ZR+<\/strong>, b\u1ea1n kh\u00f4ng ch\u1ec9 \u0111ang mua m\u1ed9t b\u1ed9 thu ph\u00e1t; b\u1ea1n c\u00f2n \u0111ang x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng m\u1ea1ng b\u1ec1n b\u1ec9 v\u00e0 kh\u00e1ng l\u1ed7i h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 K\u1ebft lu\u1eadn: Ki\u1ec3m so\u00e1t t\u00edn hi\u1ec7u v\u00ec m\u1ed9t t\u01b0\u01a1ng lai nhanh h\u01a1n<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI)<\/strong> l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c v\u1eadt l\u00fd c\u01a1 b\u1ea3n trong truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao, nh\u01b0ng \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t qua. Nh\u1edd hi\u1ec3u s\u00e2u v\u1ec1 nguy\u00ean nh\u00e2n g\u00e2y ra n\u00f3 v\u00e0 \u00e1p d\u1ee5ng chi\u1ebfn l\u01b0\u1ee3c c\u00e1c k\u1ef9 thu\u1eadt kh\u1eafc ph\u1ee5c\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 tri\u1ec3n khai c\u00e1c b\u1ed9 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>module quang<br><\/strong><\/a>th\u00f4ng minh\u2014ch\u00fang ta c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng gi\u1edbi h\u1ea1n v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u0103ng l\u00ean, m\u1ed1i quan h\u1ec7 h\u1ee3p t\u00e1c gi\u1eefa x\u1eed l\u00fd t\u00edn hi\u1ec7u tinh vi (nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/fec-forward-error-correction-in-optical-communication\/\"><strong>FEC<\/strong><\/a> v\u00e0 c\u00e2n b\u1eb1ng) c\u00f9ng ph\u1ea7n c\u1ee9ng ch\u1ea5t l\u01b0\u1ee3ng cao (nh\u01b0 <strong>c\u00e1c module quang h\u1ecdc \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd t\u00e1n s\u1eafc<\/strong>) s\u1ebd ng\u00e0y c\u00e0ng tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2705 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI) ngh\u0129a l\u00e0 g\u00ec trong truy\u1ec1n th\u00f4ng k\u1ef9 thu\u1eadt s\u1ed1?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u x\u1ea3y ra khi t\u00edn hi\u1ec7u t\u1eeb c\u00e1c bit kh\u00e1c nhau tr\u1ed9n l\u1eabn v\u00e0o nhau. \u0110i\u1ec1u n\u00e0y khi\u1ebfn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n kh\u00f3 nh\u1eadn bi\u1ebft t\u1eebng bit ri\u00eang l\u1ebb. ISI c\u00f3 th\u1ec3 g\u00e2y ra sai s\u00f3t trong th\u00f4ng \u0111i\u1ec7p c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nguy\u00ean nh\u00e2n n\u00e0o g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u x\u1ea3y ra khi c\u00e1c xung ch\u1ed3ng l\u1ea5n l\u00ean nhau ho\u1eb7c k\u00eanh truy\u1ec1n kh\u00f4ng ho\u00e0n h\u1ea3o. Ph\u1ea7n c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng ch\u1eadm c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1 n\u00e0y. Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y l\u00e0m cho t\u00edn hi\u1ec7u h\u00f2a l\u1eabn v\u00e0 m\u1ea5t \u0111i h\u00ecnh d\u1ea1ng r\u00f5 r\u00e0ng ban \u0111\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >ISI c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng v\u1ea5n \u0111\u1ec1 g\u00ec cho thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">ISI c\u00f3 th\u1ec3 khi\u1ebfn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ecdc sai c\u00e1c bit. B\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p t\u00ecnh tr\u1ea1ng cu\u1ed9c g\u1ecdi b\u1ecb ng\u1eaft, t\u1ed1c \u0111\u1ed9 internet ch\u1eadm ho\u1eb7c l\u1ed7i th\u00f4ng \u0111i\u1ec7p. D\u1eef li\u1ec7u c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng c\u00f2n an to\u00e0n khi ISI xu\u1ea5t hi\u1ec7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m g\u00ec \u0111\u1ec3 gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ed9 c\u00e2n b\u1eb1ng, b\u1ed9 l\u1ecdc v\u00e0 \u0111\u1ed3ng b\u1ed9 th\u1eddi gian t\u1ed1t h\u01a1n \u0111\u1ec3 h\u1ed7 tr\u1ee3. C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y gi\u00fap thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n gi\u1eef c\u00e1c t\u00edn hi\u1ec7u t\u00e1ch bi\u1ec7t. Ch\u00fang l\u00e0m cho th\u00f4ng \u0111i\u1ec7p c\u1ee7a b\u1ea1n r\u00f5 r\u00e0ng h\u01a1n v\u00e0 gi\u00fap ng\u0103n ng\u1eeba sai s\u00f3t.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI) trong truy\u1ec1n th\u00f4ng k\u1ef9 thu\u1eadt s\u1ed1 x\u1ea3y ra khi c\u00e1c t\u00edn hi\u1ec7u ch\u1ed3ng l\u1ea5n l\u00ean nhau g\u00e2y ra l\u1ed7i bit, l\u00e0m gi\u1ea3m \u0111\u1ed9 tin c\u1eady c\u1ee7a d\u1eef li\u1ec7u v\u00e0 \u0111\u1ed9 r\u00f5 n\u00e9t c\u1ee7a t\u00edn hi\u1ec7u.<\/p>","protected":false},"author":1,"featured_media":3906,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[13,17,24,26],"class_list":["post-3908","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-100g-modules","tag-400g-optical-modules","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3908","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=3908"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3908\/revisions"}],"predecessor-version":[{"id":10881,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3908\/revisions\/10881"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3906"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}