{"id":5531,"date":"2025-08-06T00:00:00","date_gmt":"2025-08-06T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/signal-distortion-definition-types-tips\/"},"modified":"2026-06-22T09:14:11","modified_gmt":"2026-06-22T09:14:11","slug":"signal-distortion-definition-types-tips","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/signal-distortion-definition-types-tips","title":{"rendered":"Hi\u1ec3u v\u1ec1 m\u00e9o t\u00edn hi\u1ec7u: \u0110\u1ecbnh ngh\u0129a, c\u00e1c lo\u1ea1i, t\u00e1c \u0111\u1ed9ng v\u00e0 m\u1eb9o x\u1eed l\u00fd"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u l\u00e0 b\u1ea5t k\u1ef3 s\u1ef1 thay \u0111\u1ed5i kh\u00f4ng mong mu\u1ed1n n\u00e0o trong h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u, th\u1eddi \u0111i\u1ec3m ho\u1eb7c \u0111\u1eb7c t\u00ednh c\u1ee7a t\u00edn hi\u1ec7u. Trong b\u1ed1i c\u1ea3nh m\u1ea1ng v\u00e0 truy\u1ec1n th\u00f4ng d\u1eef li\u1ec7u, nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u c\u00f3 ngh\u0129a l\u00e0 d\u1eef li\u1ec7u h\u1ec7 th\u1ed1ng g\u1eedi \u0111i kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng v\u1edbi d\u1eef li\u1ec7u n\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c\u2014d\u1eabn \u0111\u1ebfn l\u1ed7i, m\u1ea5t th\u00f4ng tin v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<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\/5d07a0915ea64f6895395be6a764afa4.jpg\" alt=\"Illustration of signal distortion types in RJ45 connectors, LAN transformers, and optical modules.\" class=\"wp-image-5529\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d07a0915ea64f6895395be6a764afa4.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d07a0915ea64f6895395be6a764afa4-300x178.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d07a0915ea64f6895395be6a764afa4-1024x608.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d07a0915ea64f6895395be6a764afa4-768x456.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5d07a0915ea64f6895395be6a764afa4-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >Nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00e9o t\u00edn hi\u1ec7u<\/strong> l\u00e0 s\u1ef1 thay \u0111\u1ed5i kh\u00f4ng mong mu\u1ed1n \u0111\u1ed1i v\u1edbi h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u, th\u1eddi \u0111i\u1ec3m, bi\u00ean \u0111\u1ed9 ho\u1eb7c pha c\u1ee7a t\u00edn hi\u1ec7u khi t\u00edn hi\u1ec7u lan truy\u1ec1n qua c\u00e1p, \u0111\u1ea7u n\u1ed1i ho\u1eb7c thi\u1ebft b\u1ecb. N\u00f3 l\u00e0m sai l\u1ec7ch th\u00f4ng \u0111i\u1ec7p v\u00e0 l\u00e0m t\u0103ng t\u1ef7 l\u1ec7 l\u1ed7i. .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111i\u1ec7n t\u1eed s\u1ed1, d\u00f9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng c\u00e1c bit 1 v\u00e0 0, t\u00edn hi\u1ec7u th\u1ef1c t\u1ebf v\u1eabn mang b\u1ea3n ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 v\u00e0 d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nh\u01b0 ph\u1ea3n x\u1ea1, suy hao v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e1c lo\u1ea1i nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 223px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p><strong>Lo\u1ea1i<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>M\u00f4 t\u1ea3<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p><strong>Nhi\u1ec5u d\u1ea1ng bi\u00ean \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ef1 khu\u1ebfch \u0111\u1ea1i ho\u1eb7c suy gi\u1ea3m kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn bi\u1ebfn d\u1ea1ng d\u1ea1ng s\u00f3ng.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p><strong>Nhi\u1ec5u d\u1ea1ng pha<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 kh\u00e1c nhau ch\u1ecbu c\u00e1c \u0111\u1ed9 d\u1ecbch pha kh\u00e1c nhau, g\u00e2y ra bi\u1ebfn d\u1ea1ng d\u1ea1ng s\u00f3ng.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p><strong>Nhi\u1ec5u d\u1ea1ng phi tuy\u1ebfn<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Khi t\u00edn hi\u1ec7u \u0111i qua m\u1ed9t h\u1ec7 th\u1ed1ng phi tuy\u1ebfn, c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 m\u1edbi (v\u00ed d\u1ee5: h\u00e0i, giao thoa \u0111i\u1ec1u ch\u1ebf) \u0111\u01b0\u1ee3c t\u1ea1o ra, l\u00e0m suy gi\u1ea3m nghi\u00eam tr\u1ecdng ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"223\"><p><strong>Nhi\u1ec5u d\u1ea1ng qu\u00e1 \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nh\u1eefng thay \u0111\u1ed5i nhanh c\u1ee7a t\u00edn hi\u1ec7u v\u01b0\u1ee3t qu\u00e1 th\u1eddi gian \u0111\u00e1p \u1ee9ng c\u1ee7a h\u1ec7 th\u1ed1ng, d\u1eabn \u0111\u1ebfn k\u00e9o d\u00e0i ho\u1eb7c tr\u1ec5 d\u1ea1ng s\u00f3ng.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd38 Suy hao &amp; <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/insertion-loss-impact-on-rj45-magjack\/\">T\u1ed5n hao ch\u00e8n<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u00ean \u0111\u1ed9 t\u00edn hi\u1ec7u gi\u1ea3m do \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ed5n hao \u0111i\u1ec7n m\u00f4i. \u1ede c\u00e1c \u0111\u1ea7u n\u1ed1i nh\u01b0 RJ45 ho\u1eb7c module s\u1ee3i quang, suy hao l\u00e0m gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 r\u00f5 n\u00e9t c\u1ee7a t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd38 Ph\u1ea3n x\u1ea1 &amp; Mismatch tr\u1edf kh\u00e1ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi tr\u1edf kh\u00e1ng thay \u0111\u1ed5i t\u1ea1i \u0111\u1ea7u n\u1ed1i ho\u1eb7c \u0111\u01b0\u1eddng d\u1eabn, m\u1ed9t ph\u1ea7n t\u00edn hi\u1ec7u b\u1ecb ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c l\u1ea1i, g\u00e2y nhi\u1ec5u d\u1ea1ng ho\u1eb7c \u201crung\u201d t\u00edn hi\u1ec7u. Vi\u1ec7c k\u1ebft cu\u1ed1i \u0111\u00fang c\u00e1ch l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng ph\u1ea3n x\u1ea1 n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd38 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/crosstalk-definition-causes-types-effects\/\">Nhi\u1ec5u xuy\u00ean k\u00eanh (crosstalk)<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 gh\u00e9p \u0111i\u1ec7n t\u1eeb gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng t\u00edn hi\u1ec7u l\u00e2n c\u1eadn (v\u00ed d\u1ee5: trong \u0111\u1ea7u n\u1ed1i RJ45 ho\u1eb7c c\u1eb7p vi sai tr\u00ean b\u1ea3ng m\u1ea1ch in) g\u00e2y nhi\u1ec5u, l\u00e0m suy gi\u1ea3m \u0111\u1ed9 r\u00f5 n\u00e9t c\u1ee7a t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd38 T\u00e1n s\u1eafc (t\u00edn hi\u1ec7u quang)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang g\u1eb7p ph\u1ea3i <strong>t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9<\/strong>, n\u01a1i c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau lan truy\u1ec1n v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau, v\u00e0 <strong>t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 (modal dispersion)<\/strong> trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/difference-between-fibers-single-mode-vs-multimode-guide\/\">c\u00e1p quang \u0111a mode<\/a>, d\u1eabn \u0111\u1ebfn m\u1edf r\u1ed9ng xung v\u00e0 nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd38 Nhi\u1ec5u d\u1ea1ng phi tuy\u1ebfn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong module quang ho\u1eb7c thi\u1ebft b\u1ecb t\u1eeb t\u00ednh, c\u00f4ng su\u1ea5t cao ho\u1eb7c v\u1eadt li\u1ec7u kh\u00f4ng ho\u00e0n h\u1ea3o c\u00f3 th\u1ec3 sinh ra c\u00e1c h\u00e0i ho\u1eb7c giao thoa \u0111i\u1ec1u ch\u1ebf, l\u00e0m nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u th\u00eam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >V\u00ec sao nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u l\u1ea1i quan tr\u1ecdng?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Cao h\u01a1n <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>T\u1ef7 l\u1ec7 L\u1ed7i Bit (BER)<\/strong><\/a><strong>:<\/strong> Nhi\u1ec5u d\u1ea1ng l\u00e0m t\u0103ng l\u1ed7i trong c\u00e1c li\u00ean k\u1ebft k\u1ef9 thu\u1eadt s\u1ed1, \u0111\u1eb7c bi\u1ec7t \u1edf t\u1ed1c \u0111\u1ed9 Gigabit tr\u1edf l\u00ean.<\/p><\/li><li><p><strong>Bi\u1ec3u \u0111\u1ed3 m\u1eaft \u0111\u00f3ng:<\/strong> Bi\u1ec3u \u0111\u1ed3 m\u1eaft tr\u1ef1c quan h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u\u2014n\u1ebfu \u201cm\u1eaft\u201d \u0111\u00f3ng l\u1ea1i, \u0111\u1ed9 tin c\u1eady truy\u1ec1n d\u1eabn s\u1ebd gi\u1ea3m.<\/p><\/li><li><p><strong>Gi\u1ea3m <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/what-is-data-bandwidth\/\"><strong>D\u1ea3i th\u00f4ng<\/strong><\/a><strong> &amp; T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u:<\/strong> T\u00edn hi\u1ec7u b\u1ecb nhi\u1ec5u d\u1ea1ng mang th\u00f4ng tin \u00edt \u0111\u00e1ng tin c\u1eady h\u01a1n, h\u1ea1n ch\u1ebf hi\u1ec7u n\u0103ng h\u1ec7 th\u1ed1ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >Ki\u1ec3m so\u00e1t nhi\u1ec5u d\u1ea1ng trong s\u1ea3n ph\u1ea9m LINK\u2011PP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c s\u1ea3n ph\u1ea9m c\u1ed1t l\u00f5i c\u1ee7a LINK\u2011PP\u2014\u0111\u1ea7u n\u1ed1i RJ45, module quang (v\u00ed d\u1ee5: module SFP, 10\u202fG, 25\u202fG) v\u00e0 bi\u1ebfn \u00e1p Ethernet\u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m gi\u1ea3m thi\u1ec3u nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u theo nh\u1eefng c\u00e1ch sau:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b5aa9ee35ff848e497232b97f3e18d9a.jpg\" alt=\"LINK\u2011PP Products\" class=\"wp-image-5530\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b5aa9ee35ff848e497232b97f3e18d9a.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b5aa9ee35ff848e497232b97f3e18d9a-300x178.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b5aa9ee35ff848e497232b97f3e18d9a-1024x608.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b5aa9ee35ff848e497232b97f3e18d9a-768x456.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b5aa9ee35ff848e497232b97f3e18d9a-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2605 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\">\u0110\u1ea7u n\u1ed1i RJ45<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c ch\u1ebf t\u1ea1o v\u1edbi vi\u1ec7c ph\u1ed1i h\u1ee3p tr\u1edf kh\u00e1ng ch\u00ednh x\u00e1c v\u00e0 k\u1ebft cu\u1ed1i Bob Smith nh\u1eb1m gi\u1ea3m ph\u1ea3n x\u1ea1 v\u00e0 t\u1ed5n hao ch\u00e8n.<\/p><\/li><li><p>Th\u1ea5p <strong>T\u1ed5n hao ph\u1ea3n x\u1ea1 (Return Loss)<\/strong> and <strong>TI\u1ebeP THEO\/FEXT<\/strong> C\u00e1c th\u00f4ng s\u1ed1 nhi\u1ec5u xuy\u00ean \u00e2m \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u vi sai s\u1ea1ch.<\/p><\/li><li><p>Tu\u00e2n th\u1ee7 h\u01b0\u1edbng d\u1eabn b\u1ed1 tr\u00ed b\u1ea3ng m\u1ea1ch in (m\u1eb7t \u0111\u1ea5t, gh\u00e9p c\u1eb7p \u0111\u01b0\u1eddng d\u1eabn) nh\u1eb1m duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2605 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">M\u00f4-\u0111un quang<br><\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ed9 thu ph\u00e1t quang bao g\u1ed3m <strong>CDR (Kh\u00f4i ph\u1ee5c \u0111\u1ed3ng h\u1ed3 v\u00e0 d\u1eef li\u1ec7u)<\/strong> and <strong>FEC (Hi\u1ec7u ch\u1ec9nh l\u1ed7i ti\u1ebfn)<\/strong> \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh nhi\u1ec5u d\u1ea1ng d\u1ea1ng s\u00f3ng v\u00e0 rung th\u1eddi gian.<\/p><\/li><li><p>C\u00e1c th\u00f4ng s\u1ed1 MODULE tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n IEEE (v\u00ed d\u1ee5: \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu ch\u1ecbu t\u1ea3i, tu\u00e2n th\u1ee7 m\u1eb7t n\u1ea1 bi\u1ec3u \u0111\u1ed3 m\u1eaft) nh\u1eb1m ch\u1ed1ng l\u1ea1i c\u00e1c hi\u1ec7u \u1ee9ng t\u00e1n s\u1eafc.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2605<a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\"> Bi\u1ebfn \u00e1p Ethernet<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Cao<br> <strong>T\u1ef7 s\u1ed1 kh\u1eed th\u00e0nh ph\u1ea7n chung (CMRR)<\/strong> \u0111\u1ec3 \u1ee9c ch\u1ebf nhi\u1ec5u v\u00e0 duy tr\u00ec c\u00e2n b\u1eb1ng bi\u00ean \u0111\u1ed9\/ph\u00e2n pha.<\/p><\/li><li><p>Thi\u1ebft k\u1ebf t\u1eeb t\u00ednh ch\u1ed1ng b\u00e3o h\u00f2a v\u00e0 giao thoa \u0111i\u1ec1u ch\u1ebf, b\u1ea3o to\u00e0n \u0111\u1ed9 trung th\u1ef1c t\u00edn hi\u1ec7u trong c\u00e1c t\u00ecnh hu\u1ed1ng t\u0103ng \u0111\u1ed9t bi\u1ebfn c\u00f4ng su\u1ea5t ho\u1eb7c s\u1ef1 ki\u1ec7n ESD.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >M\u1eb9o th\u1ef1c ti\u1ec5n \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Lu\u00f4n lu\u00f4n <strong>duy tr\u00ec s\u1ef1 ph\u1ed1i h\u1ee3p tr\u1edf kh\u00e1ng<\/strong> tr\u00ean to\u00e0n b\u1ed9 \u0111\u1ea7u n\u1ed1i, \u0111\u01b0\u1eddng d\u1eabn b\u1ea3ng m\u1ea1ch in v\u00e0 c\u00e1p.<\/p><\/li><li><p>Gi\u1ea3m thi\u1ec3u <strong>s\u1ef1 ch\u00eanh l\u1ec7ch chi\u1ec1u d\u00e0i v\u00e0 c\u00e1c \u0111o\u1ea1n r\u1ebd nh\u00e1nh (stubs)<\/strong> trong vi\u1ec7c \u0111i d\u00e2y \u0111\u1ea7u n\u1ed1i RJ45.<\/p><\/li><li><p>S\u1eed d\u1ee5ng <strong>c\u00f4ng c\u1ee5 m\u00f4 ph\u1ecfng \u0111i\u1ec7n t\u1eeb<\/strong> \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n ph\u1ea3n x\u1ea1 v\u00e0 nhi\u1ec5u xuy\u00ean \u00e2m.<\/p><\/li><li><p>\u0110\u1ed1i v\u1edbi li\u00ean k\u1ebft s\u1ee3i quang, h\u00e3y tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t: ch\u1ecdn lo\u1ea1i s\u1ee3i ph\u00f9 h\u1ee3p, ki\u1ec3m so\u00e1t c\u00f4ng su\u1ea5t ph\u00e1t, v\u1ec7 sinh \u0111\u1ea7u n\u1ed1i th\u01b0\u1eddng xuy\u00ean v\u00e0 ki\u1ec3m tra bi\u1ec3u \u0111\u1ed3 m\u1eaft c\u0169ng nh\u01b0 m\u1eb7t n\u1ea1 \u0111\u1ed9 nh\u1ea1y.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >So s\u00e1nh nhanh: Nhi\u1ec5u d\u1ea1ng vs. Nhi\u1ec5u vs. Suy hao<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Nhi\u1ec5u d\u1ea1ng:<\/strong> Thay \u0111\u1ed5i h\u1ec7 th\u1ed1ng \u0111\u1ed1i v\u1edbi h\u00ecnh d\u1ea1ng t\u00edn hi\u1ec7u; g\u00e2y l\u1ed7i bit v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch.<\/p><\/li><li><p><strong>Nhi\u1ec5u:<\/strong> Nhi\u1ec5u:.<\/p><\/li><li><p><strong>Su\u1ea5t suy hao:<\/strong> Suy hao:.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u l\u00e0 k\u1ebb th\u00f9 c\u1ee7a vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u r\u00f5 r\u00e0ng v\u00e0 \u0111\u00e1ng tin c\u1eady. T\u1eeb \u0111\u1ea7u n\u1ed1i RJ45 \u0111\u1ebfn module quang v\u00e0 bi\u1ebfn \u00e1p Ethernet, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">LINK\u2011PP<\/a> LINK\u2011PP t\u00edch h\u1ee3p thi\u1ebft k\u1ebf v\u00e0 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c nh\u1eb1m \u1ee9c ch\u1ebf nhi\u1ec5u d\u1ea1ng, c\u1ea3i thi\u1ec7n t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Xem Th\u00eam<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u v\u00e0 t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u n\u00f3i chung, h\u00e3y kh\u00e1m ph\u00e1 c\u00e1c b\u00e0i vi\u1ebft li\u00ean quan sau t\u1eeb Trung t\u00e2m Ki\u1ebfn th\u1ee9c c\u1ee7a LINK\u2011PP:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>V\u1eabn ch\u01b0a ch\u1eafc ch\u1eafn v\u1ec1 con \u0111\u01b0\u1eddng t\u1ed1t nh\u1ea5t cho tri\u1ec3n khai 100G c\u1ee7a b\u1ea1n? <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/insertion-loss-impact-on-rj45-magjack\/\"><strong>T\u1ed5n hao ch\u00e8n: \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn MagJack RJ45<\/strong><\/a><br\/>T\u00ecm hi\u1ec3u c\u00e1ch t\u1ed5n hao ch\u00e8n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf \u0111\u1ea7u n\u1ed1i n\u00e0o t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn n\u00f3.<\/p><\/li><li><p>\ud83d\udcc9 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>Hi\u1ec3u r\u00f5 T\u1ef7 l\u1ec7 l\u1ed7i bit (BER)<\/strong><\/a><br\/>M\u1ed9t c\u00e1i nh\u00ecn s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch nhi\u1ec5u d\u1ea1ng t\u00edn hi\u1ec7u d\u1eabn \u0111\u1ebfn BER v\u00e0 c\u00e1ch gi\u1ea3m thi\u1ec3u n\u00f3 trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p><\/li><li><p>\ud83d\ude80 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/what-is-data-bandwidth\/\"><strong>B\u0103ng th\u00f4ng d\u1eef li\u1ec7u l\u00e0 g\u00ec?<\/strong><\/a><br\/>Kh\u00e1m ph\u00e1 c\u00e1ch ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u0103ng th\u00f4ng v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n r\u00f5 r\u00e0ng.<\/p><\/li><li><p>\ud83d\udd01 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/rj45-connector-in-network-switch\/\"><strong>T\u1ed5n hao ph\u1ea3n x\u1ea1 \u1edf \u0111\u1ea7u n\u1ed1i RJ45<\/strong><\/a><br\/>M\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3m thi\u1ec3u ph\u1ea3n x\u1ea1 v\u00e0 duy tr\u00ec \u0111\u1ed9 trung th\u1ef1c c\u1ee7a t\u00edn hi\u1ec7u trong c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li><li><p>\ud83e\udded <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/clock-and-data-recovery-in-modern-communication-systems\/\"><strong>Kh\u00f4i ph\u1ee5c \u0111\u1ed3ng h\u1ed3-d\u1eef li\u1ec7u (Clock Data Recovery \u2013 CDR)<\/strong><\/a><br\/>T\u00ecm hi\u1ec3u c\u00e1ch b\u1ed9 kh\u00f4i ph\u1ee5c \u0111\u1ed3ng b\u1ed9 d\u1eef li\u1ec7u (CDR) gi\u00fap t\u00e1i t\u1ea1o l\u1ea1i c\u00e1c t\u00edn hi\u1ec7u b\u1ecb m\u00e9o v\u00e0 kh\u00f4i ph\u1ee5c \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 th\u1eddi \u0111i\u1ec3m trong c\u00e1c b\u1ed9 thu ph\u00e1t k\u1ef9 thu\u1eadt s\u1ed1.<\/p><\/li><li><p>\ud83d\udee0\ufe0f <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><br\/>T\u00ecm hi\u1ec3u c\u00e1ch m\u00e3 h\u00f3a s\u1eeda l\u1ed7i (FEC) ch\u1ed1ng l\u1ea1i s\u1ef1 m\u00e9o t\u00edn hi\u1ec7u v\u00e0 c\u00e1c l\u1ed7i truy\u1ec1n d\u1eabn trong c\u00e1c h\u1ec7 th\u1ed1ng quang s\u1ee3i t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u \u00fd ngh\u0129a c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng m\u00e9o t\u00edn hi\u1ec7u trong ph\u1ea7n c\u1ee9ng m\u1ea1ng. Hi\u1ec3u r\u00f5 c\u00e1c lo\u1ea1i m\u00e9o, nguy\u00ean nh\u00e2n g\u00e2y ra, \u1ea3nh h\u01b0\u1edfng v\u00e0 kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c s\u1ea3n ph\u1ea9m RJ45, bi\u1ebfn \u00e1p LAN v\u00e0 m\u00f4-\u0111un quang c\u1ee7a LINK-PP ki\u1ec3m so\u00e1t m\u00e9o nh\u1eb1m \u0111\u1ea3m b\u1ea3o trung t\u00e2m d\u1eef li\u1ec7u ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh.<\/p>","protected":false},"author":1,"featured_media":5529,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[22,23,25,26],"class_list":["post-5531","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-integrated-rj45-connectors","tag-link-pp-lan-transformers","tag-modular-jack","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5531","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=5531"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5531\/revisions"}],"predecessor-version":[{"id":11422,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5531\/revisions\/11422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5529"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}