{"id":3905,"date":"2025-06-20T00:00:00","date_gmt":"2025-06-20T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/insertion-loss-impact-on-rj45-magjack\/"},"modified":"2026-06-22T09:25:50","modified_gmt":"2026-06-22T09:25:50","slug":"insertion-loss-impact-on-rj45-magjack","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/insertion-loss-impact-on-rj45-magjack","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 t\u1ed5n hao ch\u00e8n v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u00ean \u0111\u1ea7u n\u1ed1i RJ45 Magjack"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng Ethernet t\u1ed1c \u0111\u1ed9 cao ng\u00e0y nay, vi\u1ec7c duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u kh\u00f4ng c\u00f2n l\u00e0 l\u1ef1a ch\u1ecdn\u2014m\u00e0 l\u00e0 y\u00eau c\u1ea7u thi\u1ebft k\u1ebf. D\u00f9 b\u1ea1n \u0111ang ph\u00e1t tri\u1ec3n ph\u1ea7n c\u1ee9ng m\u1ea1ng c\u00f4ng nghi\u1ec7p, thi\u1ebft b\u1ecb ch\u1ea9n \u0111o\u00e1n y t\u1ebf hay b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ea1t chu\u1ea9n vi\u1ec5n th\u00f4ng, m\u1ed9t th\u00f4ng s\u1ed1 \u1edf t\u1ea7ng v\u1eadt l\u00fd sau \u0111\u00e2y nh\u1ea5t \u0111\u1ecbnh kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ecf qua: <strong>T\u1ed5n hao ch\u00e8n<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For <strong>B\u1ed9 k\u1ebft n\u1ed1i RJ45 MagJack<\/strong>\u2014C\u00e1c \u1ed5 c\u1eafm RJ45 t\u00edch h\u1ee3p th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh\u2014<strong>t\u1ed5n hao ch\u00e8n<\/strong> \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u qu\u1ea3 truy\u1ec1n d\u1eef li\u1ec7u tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n. Vi\u1ec7c hi\u1ec3u r\u00f5 th\u00f4ng s\u1ed1 n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 nh\u1eb1m \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n v\u00e0 \u1ed5n \u0111\u1ecbnh h\u1ec7 th\u1ed1ng d\u00e0i h\u1ea1n.<\/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\/8d0fa254b5964990ac211d2b504d0bb5.webp\" alt=\"Insertion Loss\" class=\"wp-image-3902\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8d0fa254b5964990ac211d2b504d0bb5.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8d0fa254b5964990ac211d2b504d0bb5-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8d0fa254b5964990ac211d2b504d0bb5-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8d0fa254b5964990ac211d2b504d0bb5-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8d0fa254b5964990ac211d2b504d0bb5-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed5n hao ch\u00e8n = t\u1ed5n th\u1ea5t t\u00edn hi\u1ec7u qua b\u1ed9 k\u1ebft n\u1ed1i, \u0111o b\u1eb1ng dB.<\/p><\/li>\n\n\n\n<li><p>Gi\u00e1 tr\u1ecb c\u00e0ng th\u1ea5p c\u00e0ng t\u1ed1t: nh\u1ecf h\u01a1n -1,0 dB l\u00e0 l\u00fd t\u01b0\u1edfng cho t\u1ed1c \u0111\u1ed9 Gigabit.<\/p><\/li>\n\n\n\n<li><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh Ethernet v\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n IEEE.<\/p><\/li>\n\n\n\n<li><p>Ch\u1ecbu \u1ea3nh h\u01b0\u1edfng b\u1edfi: thi\u1ebft k\u1ebf bi\u1ebfn \u00e1p, l\u1edbp m\u1ea1, ch\u1eafn \u0111i\u1ec7n t\u1eeb, b\u1ed1 tr\u00ed m\u1ea1ch in (PCB).<\/p><\/li>\n\n\n\n<li><p>C\u00e1c b\u1ed9 k\u1ebft n\u1ed1i RJ45 LINK-PP \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra \u1edf c\u00e1c t\u1ed1c \u0111\u1ed9 1G \/ 2,5G \/ 5G v\u1edbi hi\u1ec7u su\u1ea5t t\u1ed5n hao ch\u00e8n (IL) \u0111\u00e1ng tin c\u1eady.<\/p><\/li>\n\n\n\n<li><p>Ph\u00f9 h\u1ee3p l\u00fd t\u01b0\u1edfng cho: thi\u1ebft b\u1ecb y t\u1ebf, m\u1ea1ng c\u00f4ng nghi\u1ec7p, h\u1ec7 th\u1ed1ng vi\u1ec5n th\u00f4ng.<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00ec hi\u1ec7u n\u0103ng: LINK-PP cung c\u1ea5p b\u1ed9 k\u1ebft n\u1ed1i MagJack \u0111\u00e1p \u1ee9ng RoHS, t\u1ed5n hao th\u1ea5p v\u00e0 \u0111\u1ed9 tin c\u1eady cao. <a href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\" target=\"_blank\" rel=\"\">MagJack<\/a> gi\u1ea3i ph\u00e1p.<\/p><\/li>\n\n\n\n<li><p>\u2705 Giao h\u00e0ng nhanh &amp; s\u1eb5n kho.<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra t\u1ed5n hao ch\u00e8n<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ed5n hao ch\u00e8n l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed5n hao ch\u00e8n (IL)<\/strong> \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 <strong>m\u1ee9c suy gi\u1ea3m c\u00f4ng su\u1ea5t t\u00edn hi\u1ec7u<\/strong> do vi\u1ec7c ch\u00e8n m\u1ed9t th\u00e0nh ph\u1ea7n (v\u00ed d\u1ee5: b\u1ed9 k\u1ebft n\u1ed1i RJ45) v\u00e0o \u0111\u01b0\u1eddng truy\u1ec1n t\u00edn hi\u1ec7u. Th\u00f4ng s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng <strong>decibel (dB)<\/strong> v\u00e0 t\u0103ng d\u1ea7n theo t\u1ea7n s\u1ed1.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb t\u1ed5n hao ch\u00e8n c\u00e0ng th\u1ea5p th\u00ec hi\u1ec7u n\u0103ng c\u00e0ng t\u1ed1t.<br>C\u00e1c b\u1ed9 k\u1ebft n\u1ed1i l\u00fd t\u01b0\u1edfng c\u1ea7n duy tr\u00ec m\u1ee9c suy gi\u1ea3m t\u00edn hi\u1ec7u t\u1ed1i thi\u1ec3u tr\u00ean to\u00e0n d\u1ea3i b\u0103ng th\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcd0 C\u00f4ng th\u1ee9c:<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"2385\" height=\"522\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa.png\" alt=\"Insertion Loss Formula\" class=\"wp-image-3903\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa.png 2385w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa-300x66.png 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa-1024x224.png 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa-768x168.png 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa-1536x336.png 1536w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa-2048x448.png 2048w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/449825e1cb9a435091b64d98b1add1fa-18x4.png 18w\" sizes=\"(max-width: 2385px) 100vw, 2385px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><i>P<\/i><sub>in<\/sub> = c\u00f4ng su\u1ea5t t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o<\/p><\/li>\n\n\n\n<li><p><i>P<\/i><sub>out<\/sub> = c\u00f4ng su\u1ea5t t\u00edn hi\u1ec7u \u0111\u1ea7u ra sau khi \u0111i qua b\u1ed9 k\u1ebft n\u1ed1i t\u1eeb t\u00ednh RJ45<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ec sao IL quan tr\u1ecdng trong \u1ee9ng d\u1ee5ng Ethernet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi t\u1ed1c \u0111\u1ed9 Ethernet t\u0103ng l\u00ean t\u1eeb <strong>10\/100 Mbps<\/strong> to <strong>2,5G, 5G<\/strong>, v\u00e0 th\u1eadm ch\u00ed cao h\u01a1n n\u1eefa, <strong>Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/strong>, <strong>c\u00e1c b\u1ed9 Magjack <\/strong>ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh tr\u00ean ph\u1ed5 t\u1ea7n s\u1ed1 r\u1ed9ng h\u01a1n. T\u1ed5n hao ch\u00e8n k\u00e9m c\u00f3 th\u1ec3 g\u00e2y ra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Cao h\u01a1n <strong>t\u1ef7 l\u1ec7 l\u1ed7i bit (BER)<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>M\u1ea5t g\u00f3i tin<\/strong> ho\u1eb7c truy\u1ec1n l\u1ea1i d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p><strong>Gi\u1ea3m kho\u1ea3ng c\u00e1ch c\u00e1p t\u1ed1i \u0111a<\/strong><\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t qua <strong>c\u00e1c b\u00e0i ki\u1ec3m tra tu\u00e2n th\u1ee7 IEEE 802.3<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5n hao ch\u00e8n \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Thi\u1ebft b\u1ecb y t\u1ebf<\/strong> (m\u00e1y theo d\u00f5i b\u1ec7nh nh\u00e2n, h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh)<\/p><\/li>\n\n\n\n<li><p><strong>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch vi\u1ec5n th\u00f4ng<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n qua PoE+<\/strong> (v\u00ed d\u1ee5: camera an ninh, \u0111i\u1ec3m truy c\u1eadp)<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0o \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed5n hao ch\u00e8n trong \u0111\u1ea7u n\u1ed1i RJ45 MagJack?<\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/specifications-of-integrated-rj45-connectors\/\"><strong>Y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf<\/strong><\/a><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn t\u1ed5n hao ch\u00e8n<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\">Bi\u1ebfn \u00e1p n\u1ed9i b\u1ed9<\/a> thi\u1ebft k\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed5n hao l\u00f5i v\u00e0 ki\u1ec3m so\u00e1t tr\u1edf kh\u00e1ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed1 tr\u00ed ch\u00e2n c\u1eafm v\u00e0 \u0111i d\u00e2y tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1eddng d\u1eabn d\u00e0i h\u01a1n = t\u1ed5n hao \u0111i\u1ec7n tr\u1edf v\u00e0 \u0111i\u1ec7n m\u00f4i cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>L\u1edbp m\u1ea1 ti\u1ebfp x\u00fac<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>V\u00e0ng ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0m gi\u1ea3m \u0111i\u1ec7n tr\u1edf t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u1ea5u tr\u00fac ch\u1eafn nhi\u1ec5u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) v\u00e0 gi\u1eef t\u00edn hi\u1ec7u<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>V\u1eadt li\u1ec7u l\u00f5i trong th\u00e0nh ph\u1ea7n c\u1ea3m \u1ee9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Quy\u1ebft \u0111\u1ecbnh hi\u1ec7u n\u0103ng \u1edf t\u1ea7n s\u1ed1 cao<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">So s\u00e1nh t\u1ed5n hao ch\u00e8n c\u1ee7a \u0111\u1ea7u n\u1ed1i RJ45 LINK-PP<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c20af251bd8a4223940cbd0e03398bd7-1024x608.webp\" alt=\"LINK-PP RJ45 Connector Insertion Loss Comparison\" class=\"wp-image-3904\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c20af251bd8a4223940cbd0e03398bd7-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c20af251bd8a4223940cbd0e03398bd7-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c20af251bd8a4223940cbd0e03398bd7-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c20af251bd8a4223940cbd0e03398bd7-18x12.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c20af251bd8a4223940cbd0e03398bd7.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 178px;\"\/><col style=\"width: 161px;\"\/><col style=\"width: 271px;\"\/><col style=\"width: 124px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"178\"><p><strong>M\u00f4 h\u00ecnh<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"161\"><p><strong>T\u1ed1c \u0111\u1ed9 Ethernet<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"271\"><p><strong>T\u1ed5n hao ch\u00e8n<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"124\"><p><strong>D\u1ea3i t\u1ea7n s\u1ed1<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"178\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/471291.htm\">LPJ1014NWNL<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"161\"><p>10\/100BASE-TX<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"271\"><p>T\u1ed1i \u0111a -1,0 dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"124\"><p>1\u201365 MHz<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"178\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/439725.htm\">LPJG0801GENL<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"161\"><p>1000BASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"271\"><p>T\u1ed1i \u0111a -1,0 dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"124\"><p>1\u2013100 MHz<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"178\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/468503.htm\">LPJM4938GENL<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"161\"><p>2,5GBASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"271\"><p>T\u1ed1i \u0111a -0,5 dB (1\u201350 MHz), t\u1ed1i \u0111a -1,0 dB (50\u2013125 MHz)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"124\"><p>1\u2013125 MHz<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"178\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/488807.htm\">LPJQP9693AONL<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"161\"><p>5GBASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"271\"><p>T\u1ed1i \u0111a -1,0 dB (1\u2013125 MHz), t\u1ed1i \u0111a -2,0 dB (125\u2013200 MHz), t\u1ed1i \u0111a -2,5 dB (200\u2013250 MHz)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"124\"><p>1\u2013250 MHz<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c khuy\u1ebfn ngh\u1ecb thi\u1ebft k\u1ebf d\u00e0nh cho k\u1ef9 s\u01b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed5n hao ch\u00e8n trong thi\u1ebft k\u1ebf Ethernet c\u1ee7a b\u1ea1n:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Ch\u1ecdn \u0111\u1ea7u n\u1ed1i c\u00f3 hi\u1ec7u n\u0103ng t\u1ed5n hao ch\u00e8n \u1ed5n \u0111\u1ecbnh<\/strong> trong to\u00e0n b\u1ed9 d\u1ea3i t\u1ea7n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n<\/p><\/li>\n\n\n\n<li><p><strong>Tu\u00e2n th\u1ee7 h\u01b0\u1edbng d\u1eabn b\u1ed1 tr\u00ed b\u1ea3ng m\u1ea1ch in (PCB) \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb<\/strong> (tr\u00e1nh \u0111i d\u00e2y d\u00e0i t\u1eeb \u0111\u1ea7u n\u1ed1i)<\/p><\/li>\n\n\n\n<li><p><strong>S\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i c\u00f3 tr\u1edf kh\u00e1ng kh\u1edbp v\u00e0 c\u00f3 l\u1edbp ch\u1eafn<\/strong> \u0111\u1ec3 gi\u1ea3m ph\u1ea3n x\u1ea1 v\u00e0 nhi\u1ec5u ch\u1ebf \u0111\u1ed9 chung<\/p><\/li>\n\n\n\n<li><p>Ch\u1ecdn nh\u00e0 cung c\u1ea5p c\u00f3 <strong>d\u1eef li\u1ec7u ki\u1ec3m tra \u0111\u1ea7y \u0111\u1ee7<\/strong> tr\u00ean c\u00e1c d\u1ea3i t\u1ea7n s\u1ed1 v\u00e0 l\u1ecbch s\u1eed tu\u00e2n th\u1ee7<\/p><\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udca1 <a href=\"https:\/\/www.l-p.com\/\" target=\"_blank\" rel=\"\"><strong>LINK-PP<\/strong><\/a> cung c\u1ea5p b\u00e1o c\u00e1o ki\u1ec3m tra t\u1ed5n hao ch\u00e8n chi ti\u1ebft, ch\u1ee9ng nh\u1eadn RoHS v\u00e0 ch\u1ee9ng nh\u1eadn tu\u00e2n th\u1ee7 IEEE 802.3 cho t\u1eebng l\u00f4 s\u1ea3n xu\u1ea5t.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Ki\u1ec3m tra t\u1ed5n hao ch\u00e8n<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch ki\u1ec3m tra t\u1ed5n hao ch\u00e8n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ef9 thu\u1eadt vi\u00ean s\u1eed d\u1ee5ng nhi\u1ec1u b\u01b0\u1edbc v\u00e0 c\u00f4ng c\u1ee5 \u0111\u1ec3 ki\u1ec3m tra t\u1ed5n hao ch\u00e8n trong m\u1ea1ng c\u00e1p \u0111\u1ed3ng. Quy tr\u00ecnh b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c ch\u1ecdn m\u00e1y ki\u1ec3m tra c\u00e1p \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n ng\u00e0nh. C\u00e1c thi\u1ebft b\u1ecb nh\u01b0 lo\u1ea1t m\u00e1y ph\u00e2n t\u00edch c\u00e1p Fluke Networks DSX c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng ki\u1ec3m tra t\u1eebng c\u1eb7p d\u00e2y c\u00e1p tr\u00ean to\u00e0n b\u1ed9 d\u1ea3i t\u1ea7n y\u00eau c\u1ea7u. Th\u1ee7 t\u1ee5c ki\u1ec3m tra bao g\u1ed3m k\u1ebft n\u1ed1i m\u00e1y ki\u1ec3m tra v\u00e0o c\u1ea3 hai \u0111\u1ea7u c\u00e1p, th\u1ef1c hi\u1ec7n ki\u1ec3m tra v\u00e0 xem x\u00e9t k\u1ebft qu\u1ea3 v\u1ec1 suy hao ho\u1eb7c t\u1ed5n hao ch\u00e8n, t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ea1i \u0111\u1ea7u n\u1ed1i v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 kh\u00e1c. C\u00f4ng th\u1ee9c t\u1ed5n hao ch\u00e8n \u0111\u1ed1i v\u1edbi c\u00e1p \u0111\u1ed3ng s\u1eed d\u1ee5ng ph\u00e9p \u0111o \u0111i\u1ec7n \u00e1p:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>IL = -20 log<sub>10<\/sub> (V<sub>t<\/sub>\/V<sub>r<\/sub>)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c n\u00e0y gi\u00fap \u0111o \u0111\u1ed9 suy hao b\u1eb1ng c\u00e1ch so s\u00e1nh \u0111i\u1ec7n \u00e1p \u1edf \u0111\u1ea7u ph\u00e1t v\u00e0 \u0111\u1ea7u thu. Vi\u1ec7c ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 \u0111\u1ea3m b\u1ea3o c\u00e1p \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n v\u00e0 gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c s\u1ef1 c\u1ed1 g\u00e2y ra \u0111\u1ed9 suy hao ho\u1eb7c t\u1ed5n hao ch\u00e8n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra c\u00e1p \u0111\u1ed3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ki\u1ec3m tra c\u00e1p \u0111\u1ed3ng s\u1eed d\u1ee5ng nhi\u1ec1u lo\u1ea1i m\u00e1y ki\u1ec3m tra kh\u00e1c nhau. M\u00e1y ki\u1ec3m tra x\u00e1c minh (verification tester) ki\u1ec3m tra c\u00e1c k\u1ebft n\u1ed1i c\u01a1 b\u1ea3n; m\u00e1y ki\u1ec3m tra \u0111\u00e1nh gi\u00e1 (qualification tester) x\u00e1c \u0111\u1ecbnh xem c\u00e1p c\u00f3 h\u1ed7 tr\u1ee3 c\u00e1c c\u00f4ng ngh\u1ec7 nh\u1ea5t \u0111\u1ecbnh hay kh\u00f4ng; v\u00e0 m\u00e1y ki\u1ec3m tra ch\u1ee9ng nh\u1eadn (certification tester) x\u00e1c minh s\u1ef1 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ISO v\u00e0 TIA. C\u00e1c m\u00e1y ki\u1ec3m tra ch\u1ee9ng nh\u1eadn, v\u00ed d\u1ee5 nh\u01b0 DSX CableAnalyzer, cung c\u1ea5p ch\u1ea9n \u0111o\u00e1n chi ti\u1ebft v\u1ec1 \u0111\u1ed9 suy hao, t\u1ed5n hao ch\u00e8n v\u00e0 t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ea1i \u0111\u1ea7u n\u1ed1i. Nh\u1eefng m\u00e1y ki\u1ec3m tra n\u00e0y \u0111o \u0111\u1ed9 suy hao t\u1ea1i t\u1eebng t\u1ea7n s\u1ed1, bi\u1ec3u di\u1ec5n k\u1ebft qu\u1ea3 d\u01b0\u1edbi d\u1ea1ng \u0111\u1ed3 th\u1ecb v\u00e0 nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh c\u00e1c s\u1ef1 c\u1ed1. Quy tr\u00ecnh ki\u1ec3m tra tu\u00e2n theo c\u00e1c quy t\u1eafc \u0111\u1ed9 ch\u00ednh x\u00e1c nghi\u00eam ng\u1eb7t, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ea5p V, v\u00e0 s\u1eed d\u1ee5ng qu\u00e9t t\u1ea7n s\u1ed1 t\u1ef1 \u0111\u1ed9ng. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y c\u00e1c kh\u00eda c\u1ea1nh ch\u00ednh c\u1ee7a vi\u1ec7c ki\u1ec3m tra t\u1ed5n hao ch\u00e8n tr\u00ean c\u00e1p \u0111\u1ed3ng:<\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Y\u1ebfu t\u1ed1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Chi ti\u1ebft<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00e1y ki\u1ec3m tra<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u1ea5p V, d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u00e1y ki\u1ec3m tra \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>D\u00f2ng s\u1ea3n ph\u1ea9m DSX CableAnalyzer<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ef1 \u0111\u1ed9ng, d\u1ef1a tr\u00ean t\u1ea7n s\u1ed1, c\u00f3 t\u00ednh n\u0103ng ch\u1ea9n \u0111o\u00e1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Quy t\u1eafc Ch\u00ednh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Quy t\u1eafc 3 dB, quy t\u1eafc 4 dB \u0111\u1ed1i v\u1edbi nhi\u1ec5u xuy\u00ean \u00e2m<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">M\u1eb9o: Vi\u1ec7c ki\u1ec3m tra t\u1ed5n hao ch\u00e8n \u0111\u1ecbnh k\u1ef3 v\u00e0 ki\u1ec3m tra t\u1ed5n hao ph\u1ea3n x\u1ea1 c\u1ee7a \u0111\u1ea7u n\u1ed1i gi\u00fap duy tr\u00ec \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ea1ng.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ed5n hao ch\u00e8n trong s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5n hao ch\u00e8n trong s\u1ee3i quang s\u1eed d\u1ee5ng quy tr\u00ecnh ki\u1ec3m tra kh\u00e1c bi\u1ec7t. K\u1ef9 thu\u1eadt vi\u00ean s\u1eed d\u1ee5ng B\u1ed9 ki\u1ec3m tra t\u1ed5n hao quang (OLTS) v\u00e0 M\u00e1y ph\u1ea3n x\u1ea1 th\u1eddi gian quang (OTDR) \u0111\u1ec3 \u0111o \u0111\u1ed9 suy hao ho\u1eb7c t\u1ed5n hao ch\u00e8n. C\u00f4ng th\u1ee9c t\u00ednh t\u1ed5n hao ch\u00e8n cho s\u1ee3i quang l\u00e0:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A = 10 log<sub>10<\/sub>(P<sub>in<\/sub> \/ P<sub>out<\/sub>)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Pin l\u00e0 c\u00f4ng su\u1ea5t quang \u0111\u1ea7u v\u00e0o, v\u00e0 Pout l\u00e0 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra. V\u00ed d\u1ee5, n\u1ebfu Pin l\u00e0 10 mW v\u00e0 Pout l\u00e0 5 mW, th\u00ec t\u1ed5n hao l\u00e0 3 dB. OLTS \u0111o t\u1ed5ng \u0111\u1ed9 suy hao ho\u1eb7c t\u1ed5n hao ch\u00e8n, trong khi OTDR x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed s\u1ef1 c\u1ed1 v\u00e0 \u0111o t\u1ed5n hao ph\u1ea3n x\u1ea1 c\u1ee7a \u0111\u1ea7u n\u1ed1i d\u1ecdc theo s\u1ee3i quang. Kh\u00e1c v\u1edbi c\u00e1p \u0111\u1ed3ng, vi\u1ec7c ki\u1ec3m tra s\u1ee3i quang \u0111o c\u00f4ng su\u1ea5t \u00e1nh s\u00e1ng ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111i\u1ec7n \u00e1p. C\u1ea3 c\u00e1p \u0111\u1ed3ng l\u1eabn s\u1ee3i quang \u0111\u1ec1u y\u00eau c\u1ea7u ki\u1ec3m tra t\u1ed5n hao ch\u00e8n \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng, nh\u01b0ng c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau do \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd ri\u00eang c\u1ee7a m\u1ed7i m\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5n hao ch\u00e8n \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh trong <strong>Hi\u1ec7u n\u0103ng c\u1ee7a \u0111\u1ea7u n\u1ed1i Ethernet<\/strong>. Khi nhu c\u1ea7u v\u1ec1 b\u0103ng th\u00f4ng ti\u1ebfp t\u1ee5c gia t\u0103ng, nhu c\u1ea7u v\u1ec1 <strong>C\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 r\u00f5 n\u00e9t c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 tu\u00e2n th\u1ee7 h\u1ec7 th\u1ed1ng<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi h\u00e0ng th\u1eadp k\u1ef7 kinh nghi\u1ec7m s\u1ea3n xu\u1ea5t v\u00e0 h\u01a1n 6 tri\u1ec7u linh ki\u1ec7n \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n h\u00e0ng th\u00e1ng, <strong>LINK-PP<\/strong> cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c \u0111\u1ea7u n\u1ed1i <a href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\" target=\"_blank\" rel=\"\"><strong>RJ45 MagJack \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c<\/strong><\/a><\/p><\/li>\n\n\n\n<li><p>Hi\u1ec7u n\u0103ng t\u1ed5n hao ch\u00e8n \u1ed5n \u0111\u1ecbnh tr\u00ean to\u00e0n b\u1ed9 d\u1ea3i t\u1ea7n s\u1ed1<\/p><\/li>\n\n\n\n<li><p>Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n <strong>IEEE 802.3<\/strong>, <strong>RoHS<\/strong>, and <strong>REACH<\/strong> ti\u00eau chu\u1ea9n<\/p><\/li>\n\n\n\n<li><p><strong>Giao h\u00e0ng to\u00e0n c\u1ea7u nhanh ch\u00f3ng<\/strong> and <strong>H\u00e0ng t\u1ed3n kho s\u1eb5n c\u00f3<\/strong> cho c\u00e1c m\u1eabu ti\u00eau chu\u1ea9n<\/p><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>T\u1ed5n hao ch\u00e8n \u1edf \u0111\u1ea7u n\u1ed1i RJ45 l\u00e0m suy y\u1ebfu c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ea1ng. T\u00ecm hi\u1ec3u c\u00e1ch gi\u1ea3m thi\u1ec3u t\u1ed5n hao ch\u00e8n \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>","protected":false},"author":1,"featured_media":3902,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[22],"class_list":["post-3905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-integrated-rj45-connectors"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3905","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=3905"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3905\/revisions"}],"predecessor-version":[{"id":11455,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3905\/revisions\/11455"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3902"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}