{"id":5901,"date":"2025-06-26T00:00:00","date_gmt":"2025-06-26T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/rj45-connector-in-network-switch\/"},"modified":"2026-06-22T09:24:18","modified_gmt":"2026-06-22T09:24:18","slug":"rj45-connector-in-network-switch","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/rj45-connector-in-network-switch","title":{"rendered":"T\u00ecm Hi\u1ec3u V\u1ec1 T\u1ed5n Hao Ph\u1ea3n X\u1ea1 (Return Loss) Trong C\u00e1c \u0110\u1ea7u N\u1ed1i RJ45 C\u00f3 Bi\u1ebfn \u00c1p N\u1ed9i B\u1ed9: V\u00ec Sao \u0110i\u1ec1u N\u00e0y Quan Tr\u1ecdng \u0110\u1ed1i V\u1edbi Hi\u1ec7u Su\u1ea5t Ethernet"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Trong thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng Ethernet, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u nh\u01b0 nhi\u1ec5u xuy\u00ean k\u00eanh (crosstalk), t\u1ed5n hao ch\u00e8n (insertion loss) v\u00e0 ch\u1eafn nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI shielding). Tuy nhi\u00ean, c\u00f3 m\u1ed9t th\u00f4ng s\u1ed1 th\u01b0\u1eddng b\u1ecb hi\u1ec3u sai d\u00f9 \u1ea3nh h\u01b0\u1edfng quan tr\u1ecdng c\u1ee7a n\u00f3 l\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn: <strong>T\u1ed5n hao ph\u1ea3n x\u1ea1 (Return Loss)<\/strong>. Khi l\u00e0m vi\u1ec7c v\u1edbi t\u1ed1c \u0111\u1ed9 cao <strong>c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 t\u00edch h\u1ee3p bi\u1ebfn \u00e1p (MagJack)<\/strong>, vi\u1ec7c hi\u1ec3u r\u00f5 t\u1ed5n hao ph\u1ea3n x\u1ea1 l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh, hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n IEEE 802.3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch kh\u00e1i ni\u1ec7m t\u1ed5n hao ph\u1ea3n x\u1ea1, l\u00fd do v\u00ec sao n\u00f3 quan tr\u1ecdng trong thi\u1ebft k\u1ebf MagJack RJ45, c\u0169ng nh\u01b0 c\u00e1ch c\u00e1c s\u1ea3n ph\u1ea9m LINK-PP\u2014t\u1eeb chu\u1ea9n 10\/100 Base-T \u0111\u1ebfn 10G\u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nh\u1eefng y\u00eau c\u1ea7u kh\u1eaft khe n\u00e0y.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >T\u1ed5n hao ph\u1ea3n x\u1ea1 l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed5n hao ph\u1ea3n x\u1ea1<\/strong> l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u then ch\u1ed1t, d\u00f9ng \u0111\u1ec3 \u0111\u1ecbnh l\u01b0\u1ee3ng ph\u1ea7n t\u00edn hi\u1ec7u truy\u1ec1n \u0111i b\u1ecb <strong>ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c l\u1ea1i<\/strong> do <strong>s\u1ef1 kh\u00f4ng kh\u1edbp tr\u1edf kh\u00e1ng (impedance mismatch)<\/strong> tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n. Th\u00f4ng s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng <strong>decibel (dB)<\/strong> theo c\u00f4ng th\u1ee9c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5n hao ph\u1ea3n x\u1ea1 (dB) = -20 * log10(|(ZL \u2013 Z0) \/ (ZL + Z0)|)<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"373\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f4dd5c4e12d94931b9a7c45d85b9b3bb.jpg\" alt=\"Return Loss\" class=\"wp-image-5898\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f4dd5c4e12d94931b9a7c45d85b9b3bb.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f4dd5c4e12d94931b9a7c45d85b9b3bb-300x93.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f4dd5c4e12d94931b9a7c45d85b9b3bb-1024x318.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f4dd5c4e12d94931b9a7c45d85b9b3bb-768x239.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f4dd5c4e12d94931b9a7c45d85b9b3bb-18x6.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">trong \u0111\u00f3 <strong>Z<\/strong>Z<sub>L<\/sub> l\u00e0 tr\u1edf kh\u00e1ng t\u1ea3i (v\u00ed d\u1ee5: \u0111\u1ea7u n\u1ed1i ho\u1eb7c \u0111\u1ea7u v\u00e0o PHY), v\u00e0 <strong>Z<\/strong>Z<sub>0<\/sub> l\u00e0 tr\u1edf kh\u00e1ng \u0111\u1eb7c tr\u01b0ng c\u1ee7a m\u00f4i tr\u01b0\u1eddng\u2014th\u00f4ng th\u01b0\u1eddng l\u00e0 <strong>100\u03a9<\/strong> \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng Ethernet s\u1eed d\u1ee5ng c\u00e1p xo\u1eafn \u0111\u00f4i kh\u00f4ng che ch\u1eafn (UTP), theo ti\u00eau chu\u1ea9n <strong>IEEE 802.3-2018, \u0110i\u1ec1u 40.7.1<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i chung, <strong>gi\u00e1 tr\u1ecb t\u1ed5n hao ph\u1ea3n x\u1ea1 c\u00e0ng cao th\u00ec n\u0103ng l\u01b0\u1ee3ng ph\u1ea3n x\u1ea1 c\u00e0ng \u00edt<\/strong>, \u0111i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi <strong>\u0111\u1ed9 kh\u1edbp tr\u1edf kh\u00e1ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n<\/strong>. Tuy nhi\u00ean, t\u1ed5n hao ph\u1ea3n x\u1ea1 kh\u00f4ng c\u1ea7n \u0111\u01b0\u1ee3c t\u1ed1i \u0111a h\u00f3a m\u1ed9t c\u00e1ch t\u00f9y ti\u1ec7n\u2014<strong>m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf ch\u00ednh l\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 ng\u01b0\u1ee1ng t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ed1i thi\u1ec3u do IEEE quy \u0111\u1ecbnh trong d\u1ea3i t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh<\/strong>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\ud83d\udcd8 <em>IEEE 802.3-2018 quy \u0111\u1ecbnh c\u00e1c ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ed1i thi\u1ec3u cho c\u00e1c giao di\u1ec7n 100BASE-T, 1000BASE-T v\u00e0 10GBASE-T t\u1ea1i c\u00e1c \u0110i\u1ec1u 14, 40 v\u00e0 55 t\u01b0\u01a1ng \u1ee9ng. V\u00ed d\u1ee5, 1000BASE-T y\u00eau c\u1ea7u t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ed1i thi\u1ec3u l\u00e0 -16 dB trong d\u1ea3i t\u1ea7n 1\u201330 MHz.<\/em><\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c kh\u1edbp tr\u1edf kh\u00e1ng \u0111\u00fang c\u00e1ch gi\u1eefa c\u00e1c \u0111\u1ea7u n\u1ed1i, c\u00e1p v\u00e0 m\u1ea1ch in (PCB traces) \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n c\u00f4ng su\u1ea5t hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng jitter ph\u1ee5 thu\u1ed9c d\u1eef li\u1ec7u, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 cao nh\u01b0 <strong>Ethernet 2,5G\/5G\/10G<\/strong>, ho\u1eb7c khi k\u1ebft h\u1ee3p v\u1edbi <strong>c\u00f4ng ngh\u1ec7 Cung c\u1ea5p \u0111i\u1ec7n qua Ethernet (PoE)<\/strong> c\u00e1c h\u1ec7 th\u1ed1ng t\u1ea1o ra th\u00eam c\u00e1c \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng chung (common-mode) m\u1edbi.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >T\u1ea1i sao T\u1ed5n hao ph\u1ea3n x\u1ea1 (Return Loss) l\u1ea1i quan tr\u1ecdng trong Ethernet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c \u1ee9ng d\u1ee5ng Ethernet t\u1ed1c \u0111\u1ed9 cao, t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u\u2014m\u00e0 c\u00f2n l\u00e0 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u1ebfn m\u1ed9t c\u00e1ch s\u1ea1ch s\u1ebd. N\u1ebfu t\u1ed5n hao ph\u1ea3n x\u1ea1 qu\u00e1 th\u1ea5p (t\u1ee9c l\u00e0 ph\u1ea3n x\u1ea1 qu\u00e1 nhi\u1ec1u), h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u ki\u1ec3m tra ph\u00f9 h\u1ee3p ho\u1eb7c tr\u1edf n\u00ean b\u1ea5t \u1ed5n trong \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u1ed5n hao ph\u1ea3n x\u1ea1 k\u00e9m<\/strong> c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 ch\u1ec7ch th\u1eddi gian (jitter) v\u00e0 m\u1ea5t g\u00f3i tin (packet loss)<\/p><\/li><li><p><strong>C\u00e1c ph\u1ea3n x\u1ea1 qu\u00e1 m\u1ee9c<\/strong> c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u cho t\u00edn hi\u1ec7u vi sai (differential signaling), \u0111\u1eb7c bi\u1ec7t l\u00e0 trong <strong>PoE<\/strong> \u1ee9ng d\u1ee5ng<\/p><\/li><li><p><strong>c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 IEEE 802.3<\/strong> y\u00eau c\u1ea7u m\u1ee9c t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ed1i thi\u1ec3u t\u1ea1i c\u00e1c d\u1ea3i t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5n hao ph\u1ea3n x\u1ea1 tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n \u1edf t\u1ea7n s\u1ed1 cao h\u01a1n. \u0110\u00f3 l\u00e0 l\u00fd do v\u00ec sao c\u00e1c \u0111\u1ea7u n\u1ed1i d\u00e0nh cho <strong>2,5G<\/strong>, <strong>5G<\/strong>, and <strong>Ethernet 10G<\/strong> ph\u1ea3i ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd h\u01a1n v\u1ec1 tr\u1edf kh\u00e1ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ea5u t\u1ea1o.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >Hi\u1ec7u su\u1ea5t T\u1ed5n hao ph\u1ea3n x\u1ea1 tr\u00ean c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 MagJack LINK-PP<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"587\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/02af035e6c58419d975ccd6cdd45afb9.jpg\" alt=\"Return Loss\" class=\"wp-image-5899\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/02af035e6c58419d975ccd6cdd45afb9.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/02af035e6c58419d975ccd6cdd45afb9-300x147.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/02af035e6c58419d975ccd6cdd45afb9-1024x501.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/02af035e6c58419d975ccd6cdd45afb9-768x376.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/02af035e6c58419d975ccd6cdd45afb9-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP cung c\u1ea5p m\u1ed9t lo\u1ea1t \u0111\u1ea7y \u0111\u1ee7 c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 MagJack \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1ec1 t\u1ed5n hao ph\u1ea3n x\u1ea1 c\u1ee7a Ethernet. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 v\u00ed d\u1ee5 t\u1eeb b\u1ed1n s\u1ea3n ph\u1ea9m ti\u00eau bi\u1ec3u:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd39 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/471293.htm\">LPJ0012DNL \u2013 \u0110\u1ea7u n\u1ed1i MagJack RJ45 cho Ethernet 10\/100 Base-T<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ph\u00f9 h\u1ee3p l\u00fd t\u01b0\u1edfng cho c\u00e1c h\u1ec7 th\u1ed1ng Ethernet SOHO v\u00e0 h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba<\/p><\/li><li><p>T\u1ed5n hao ph\u1ea3n x\u1ea1 (dB t\u1ed1i thi\u1ec3u):<\/p><ul><li><p>1\u201330 MHz: <strong>-18<\/strong><\/p><\/li><li><p>30\u201360 MHz: <strong>-15<\/strong><\/p><\/li><li><p>60\u201380 MHz: <strong>-12<\/strong><\/p><\/li><li><p>80\u2013100 MHz: <strong>-10<\/strong><\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng \u1ee9c ch\u1ebf ph\u1ea3n x\u1ea1 t\u00edn hi\u1ec7u xu\u1ea5t s\u1eafc trong d\u1ea3i t\u1ea7n y\u00eau c\u1ea7u b\u1edfi giao th\u1ee9c 100BASE-TX.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd39 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/470968.htm\">LPJK4036CNL \u2013 \u0110\u1ea7u n\u1ed1i t\u1eeb t\u00ednh RJ45 Gigabit<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch (switch), b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn (router) v\u00e0 \u1ee9ng d\u1ee5ng LAN nh\u00fang<\/p><\/li><li><p>T\u1ed5n hao ph\u1ea3n x\u1ea1 (dB t\u1ed1i thi\u1ec3u):<\/p><ul><li><p>1\u201310 MHz: <strong>-20<\/strong><\/p><\/li><li><p>30 MHz: <strong>-16<\/strong><\/p><\/li><li><p>60\u201380 MHz: <strong>-12<\/strong><\/p><\/li><li><p>80\u2013100 MHz: <strong>-10<\/strong><\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u n\u1ed1i n\u00e0y th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ed1i h\u1ee3p tr\u1edf kh\u00e1ng m\u1ea1nh m\u1ebd, \u0111\u1eb7c bi\u1ec7t \u1edf t\u1ea7n s\u1ed1 th\u1ea5p, ph\u00f9 h\u1ee3p cho <strong>1000BASE-T<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd39 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/466241.htm\">LPJM27010AHNL \u2013 \u0110\u1ea7u n\u1ed1i RJ45 2 c\u1ed5ng 2\u00d72 cho Ethernet 2,5G<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c c\u1ed5ng IoT hi\u1ec7n \u0111\u1ea1i v\u00e0 thi\u1ebft b\u1ecb bi\u00ean (edge devices)<\/p><\/li><li><p>T\u1ed5n hao ph\u1ea3n x\u1ea1 (dB t\u1ed1i thi\u1ec3u):<\/p><ul><li><p>1\u201330 MHz: <strong>-16<\/strong><\/p><\/li><li><p>30\u2013100 MHz: <strong>-12<\/strong><\/p><\/li><li><p>100\u2013150 MHz: <strong>-10<\/strong><\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7u su\u1ea5t c\u00e2n b\u1eb1ng t\u1ed1t cho <strong>2,5GBASE-T<\/strong>, n\u01a1i ki\u1ec3m so\u00e1t t\u00edn hi\u1ec7u tr\u1edf n\u00ean nh\u1ea1y c\u1ea3m h\u01a1n khi v\u01b0\u1ee3t qu\u00e1 100 MHz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud83d\udd39 <a target=\"_new\" rel=\"noopener\" class=\"\" href=\"https:\/\/www.l-p.com\/products\/466200.htm\">LPJK9436AHNL \u2013 \u0110\u1ea7u n\u1ed1i MagJack RJ45 cho Ethernet 10G Base-T<\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>D\u00e0nh cho c\u00e1c thi\u1ebft b\u1ecb x\u01b0\u01a1ng s\u1ed1ng t\u1ed1c \u0111\u1ed9 cao v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch 10G<\/p><\/li><li><p>T\u1ed5n hao ph\u1ea3n x\u1ea1 (dB t\u1ed1i thi\u1ec3u):<\/p><ul><li><p>1\u201340 MHz: <strong>-18<\/strong><\/p><\/li><li><p>40\u2013400 MHz: <strong>-8<\/strong><\/p><\/li><li><p>400\u2013500 MHz: <strong>-5<\/strong><\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 trong ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 c\u1ef1c cao, \u0111\u1ea7u n\u1ed1i n\u00e0y v\u1eabn \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u kh\u1eaft khe c\u1ee7a <strong>10GBASE-T<\/strong> li\u00ean k\u1ebft Ethernet.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e1ch \u0111\u00e1nh gi\u00e1 T\u1ed5n hao ph\u1ea3n x\u1ea1 khi l\u1ef1a ch\u1ecdn \u0111\u1ea7u n\u1ed1i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ch\u1ecdn b\u1ed9 n\u1ed1i, h\u00e3y ch\u00fa \u00fd \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>The <strong>d\u1ea3i t\u1ea7n s\u1ed1<\/strong> h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng trong<\/p><\/li><li><p>The <strong>t\u1ed5n hao ph\u1ea3n x\u1ea1 t\u1ed1i thi\u1ec3u (t\u00ednh b\u1eb1ng dB)<\/strong> tr\u00ean to\u00e0n b\u1ed9 d\u1ea3i t\u1ea7n \u0111\u00f3<\/p><\/li><li><p>B\u1ed9 n\u1ed1i c\u00f3 \u0111\u00e1p \u1ee9ng <strong>ti\u00eau chu\u1ea9n t\u1ed5n hao ph\u1ea3n x\u1ea1 IEEE 802.3<\/strong> cho l\u1edbp t\u1ed1c \u0111\u1ed9 c\u1ee7a b\u1ea1n hay kh\u00f4ng<\/p><\/li><li><p>Vi\u1ec7c ki\u1ec3m tra v\u00e0 \u0111\u1ed9 nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c l\u00f4 s\u1ea3n xu\u1ea5t c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i LINK-PP, t\u1ea5t c\u1ea3 s\u1ea3n ph\u1ea9m MagJack RJ45 \u0111\u1ec1u \u0111\u01b0\u1ee3c ki\u1ec3m tra theo ti\u00eau chu\u1ea9n 100% v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh, v\u1edbi <strong>kh\u1ea3 n\u0103ng s\u1eb5n h\u00e0ng trong kho<\/strong> v\u00e0 giao h\u00e0ng to\u00e0n c\u1ea7u nhanh ch\u00f3ng.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\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 ph\u1ea3n x\u1ea1 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t con s\u1ed1\u2014\u0111\u00f3 l\u00e0 th\u01b0\u1edbc \u0111o m\u1ee9c \u0111\u1ed9 thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng m\u1ea1ng c\u1ee7a b\u1ea1n hi\u1ec7u qu\u1ea3 ra sao trong vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t m\u00e1t hay nhi\u1ec5u. T\u1eeb Ethernet 10\/100 \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng 10G, vi\u1ec7c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c t\u1ed5n hao ph\u1ea3n x\u1ea1 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 r\u00f5 n\u00e9t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 t\u00ednh tu\u00e2n th\u1ee7 t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn th\u1ebf h\u1ec7 m\u1edbi hay c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang \u0111\u00e1ng tin c\u1eady, <strong>b\u1ed9 n\u1ed1i RJ45 c\u1ee7a LINK-PP<\/strong> mang l\u1ea1i hi\u1ec7u n\u0103ng v\u00e0 s\u1ef1 \u0111\u1ea3m b\u1ea3o c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng tr\u1ecdng y\u1ebfu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49<br> <strong>Kh\u00e1m ph\u00e1 to\u00e0n b\u1ed9 d\u00f2ng b\u1ed9 n\u1ed1i RJ45 t\u00edch h\u1ee3p c\u1ee7a ch\u00fang t\u00f4i t\u1ea1i:<\/strong><br\/>\ud83d\udd17<br><a target=\"_blank\" href=\"https:\/\/www.l-p.com\/\"><strong><u>Trang web LINK-PP<\/u><\/strong><\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udce9 C\u1ea7n h\u1ed7 tr\u1ee3 l\u1ef1a ch\u1ecdn linh ki\u1ec7n ph\u00f9 h\u1ee3p? <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/support.htm\">Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 nh\u1eadn b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, m\u1eabu th\u1eed ho\u1eb7c \u0111\u1ec1 xu\u1ea5t t\u00f9y ch\u1ec9nh.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u c\u00e1ch t\u1ed5n hao ph\u1ea3n x\u1ea1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t \u0111\u1ea7u n\u1ed1i RJ45 MagJack trong c\u00e1c \u1ee9ng d\u1ee5ng Ethernet. Kh\u00e1m ph\u00e1 c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf t\u1eeb c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 LINK-PP 10\/100 Mbps \u0111\u1ebfn 10G.<\/p>","protected":false},"author":1,"featured_media":5900,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[22],"class_list":["post-5901","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\/5901","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=5901"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5901\/revisions"}],"predecessor-version":[{"id":11448,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5901\/revisions\/11448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5900"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}