{"id":5594,"date":"2025-08-01T15:24:00","date_gmt":"2025-08-01T15:24:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/multi-port-rj45-connectors-ganged-vs-stacked-modules-guide\/"},"modified":"2026-06-22T09:15:07","modified_gmt":"2026-06-22T09:15:07","slug":"multi-port-rj45-connectors-ganged-vs-stacked-modules-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-port-rj45-connectors-ganged-vs-stacked-modules-guide","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 b\u1ed9 k\u1ebft n\u1ed1i RJ45 \u0111a c\u1ed5ng: M\u00f4-\u0111un gh\u00e9p nh\u00f3m (1\u00d7N) v\u00e0 m\u00f4-\u0111un x\u1ebfp ch\u1ed3ng (2\u00d7N)"},"content":{"rendered":"
\"Multi\u2011Port<\/figure>\n\n\n\n

B\u1ed9 n\u1ed1i RJ45 \u0111a c\u1ed5ng bao g\u1ed3m c\u00e1c lo\u1ea1i gh\u00e9p n\u1ed1i (ganged) v\u00e0 x\u1ebfp ch\u1ed3ng (stacked). C\u00e1c b\u1ed9 n\u1ed1i n\u00e0y ti\u1ebft ki\u1ec7m kh\u00f4ng gian, n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 h\u1ed7 tr\u1ee3 k\u1ebft n\u1ed1i Ethernet \u0111\u00e1ng tin c\u1eady. Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 n\u1ed1i ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t m\u1ea1ng m\u1ea1nh m\u1ebd. B\u1ed9 n\u1ed1i RJ45 c\u00e1i \u0111a c\u1ed5ng t\u00edch h\u1ee3p nhi\u1ec1u c\u1ed5ng Ethernet v\u00e0o m\u1ed9t \u0111\u1ea7u n\u1ed1i nh\u1ecf g\u1ecdn. LINK\u2011PP<\/a> cung c\u1ea5p c\u00e1c m\u1eabu t\u1eeb 1\u00d72<\/strong> l\u00ean \u0111\u1ebfn 1\u00d78<\/strong> (m\u1ed9t h\u00e0ng) v\u00e0 2\u00d71<\/strong> to 2\u00d78<\/strong> (hai h\u00e0ng x\u1ebfp ch\u1ed3ng), cung c\u1ea5p t\u1ed1i \u0111a 16 c\u1ed5ng<\/strong> trong kh\u00f4ng gian b\u1ea3ng m\u1ea1ch in (PCB) t\u1ed1i thi\u1ec3u. C\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y l\u00fd t\u01b0\u1edfng cho b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng, thi\u1ebft b\u1ecb nh\u00fang, h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p v\u00e0 bo m\u1ea1ch NAS.<\/p>\n\n\n\n

C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt c\u1ee7a b\u1ed9 n\u1ed1i RJ45 \u0111a c\u1ed5ng<\/h2>\n\n\n\n
\n\n<\/colgroup>

\u0110\u1eb7c t\u00ednh<\/strong><\/p><\/th>

M\u00f4 t\u1ea3<\/strong><\/p><\/th><\/tr>

C\u1ea5u h\u00ecnh c\u1ed5ng<\/strong><\/p><\/td>

H\u1ed7 tr\u1ee3 nhi\u1ec1u b\u1ed1 tr\u00ed kh\u00e1c nhau: 1\u00d74<\/a>, 2\u00d71<\/a>, 2\u00d74<\/a>, l\u00ean \u0111\u1ebfn 2\u00d78<\/a> m\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/p><\/td><\/tr>

T\u00ednh t\u01b0\u01a1ng th\u00edch t\u1ed1c \u0111\u1ed9<\/strong><\/p><\/td>

T\u1eeb 10\/100 Mbps (Cat 3) \u0111\u1ebfn 1 Gbps (Cat 5e\/6); m\u1ed9t s\u1ed1 m\u1eabu \u0111\u01b0\u1ee3c ch\u1ecdn h\u1ed7 tr\u1ee3 10 Gbps<\/p><\/td><\/tr>

C\u00e1c ch\u1ee9c n\u0103ng t\u00edch h\u1ee3p<\/strong><\/p><\/td>

T\u00f9y ch\u1ecdn t\u00edch h\u1ee3p bi\u1ebfn \u00e1p c\u00e1ch ly (magnetics), t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n ch\u1ebf \u0111\u1ed9 MDI\/MDI-X (Auto-MDIX), h\u1ed7 tr\u1ee3 c\u1ea5p ngu\u1ed3n qua Ethernet (PoE) v\u00e0 \u0111\u00e8n LED ch\u1ec9 th\u1ecb<\/p><\/td><\/tr>

B\u1ea3o v\u1ec7 ch\u1ed1ng nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI)<\/strong><\/p><\/td>

Ti\u1ebfp \u0111\u1ea5t b\u1eb1ng ng\u00f3n tay EMI v\u00e0 v\u1ecf kim lo\u1ea1i \u0111\u01b0\u1ee3c b\u1ecdc k\u00edn ho\u00e0n to\u00e0n \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u<\/p><\/td><\/tr>

C\u00e1c t\u00f9y ch\u1ecdn l\u1eafp \u0111\u1eb7t<\/strong><\/a><\/p><\/td>

L\u1eafp xuy\u00ean l\u1ed7 (THT), l\u1eafp b\u1ec1 m\u1eb7t (SMT), c\u1ea5u h\u00ecnh th\u1eb3ng \u0111\u1ee9ng ho\u1eb7c v\u00e0o b\u00ean h\u00f4ng<\/p><\/td><\/tr>

\u0110\u1ed9 b\u1ec1n m\u00f4i tr\u01b0\u1eddng<\/strong><\/p><\/td>

Thi\u1ebft k\u1ebf \u0111\u1ea1t chu\u1ea9n c\u00f4ng nghi\u1ec7p ch\u1ecbu \u0111\u01b0\u1ee3c d\u1ea3i nhi\u1ec7t r\u1ed9ng h\u01a1n v\u00e0 \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc cao h\u01a1n<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

Gi\u1ea3i th\u00edch v\u1ec1 lo\u1ea1i gh\u00e9p n\u1ed1i (ganged \u2013 1xN) v\u00e0 lo\u1ea1i x\u1ebfp ch\u1ed3ng (stacked \u2013 2xN)<\/h2>\n\n\n\n
\"Ganged<\/figure>\n\n\n\n

RJ45 gh\u00e9p n\u1ed1i (ganged \u2013 1xN)<\/h3>\n\n\n\n

Trong c\u1ea5u h\u00ecnh gh\u00e9p n\u1ed1i, t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 n\u1ed1i RJ45 \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed c\u1ea1nh nhau theo m\u1ed9t h\u00e0ng ngang duy nh\u1ea5t. B\u1ed1 tr\u00ed n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201c1\u00d7N<\/strong>\u201d v\u00ec b\u1ea1n c\u00f3 m\u1ed9t h\u00e0ng ch\u1ee9a nhi\u1ec1u c\u1ed5ng. B\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn t\u1eeb nhi\u1ec1u c\u1ea5u h\u00ecnh nhi\u1ec1u c\u1ed5ng kh\u00e1c nhau, v\u00ed d\u1ee5 nh\u01b0 1\u00d72, 1\u00d73, 1\u00d74, 1\u00d76 ho\u1eb7c 1\u00d78. M\u1ed7i c\u1ed5ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ed9 n\u1ed1i RJ45 \u0111\u1ed9c l\u1eadp, nh\u01b0ng t\u1ea5t c\u1ea3 \u0111\u1ec1u chia s\u1ebb c\u00f9ng m\u1ed9t khu v\u1ef1c l\u1eafp \u0111\u1eb7t tr\u00ean thi\u1ebft b\u1ecb.<\/p>\n\n\n\n

B\u1ed9 n\u1ed1i RJ45 gh\u00e9p n\u1ed1i (ganged)<\/a> gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m kh\u00f4ng gian tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n m\u1ea1ng. B\u1ea1n c\u00f3 th\u1ec3 l\u1eafp \u0111\u1eb7t d\u1ec5 d\u00e0ng v\u00ec c\u00e1c b\u1ed9 n\u1ed1i \u0111\u01b0\u1ee3c s\u1eafp th\u1eb3ng h\u00e0ng. \u0110i\u1ec1u n\u00e0y gi\u00fap qu\u1ea3n l\u00fd c\u00e1p \u0111\u01a1n gi\u1ea3n v\u00e0 g\u1ecdn g\u00e0ng. B\u1ea1n th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 n\u1ed1i n\u00e0y tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ea3ng \u0111\u1ea5u n\u1ed1i (patch panel) v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, n\u01a1i y\u00eau c\u1ea7u truy c\u1eadp nhanh v\u00e0o t\u1eebng c\u1ed5ng. <\/p>\n\n\n\n

M\u1eb9o: N\u1ebfu b\u1ea1n c\u1ea7n m\u1edf r\u1ed9ng m\u1ea1ng nh\u01b0ng v\u1eabn mu\u1ed1n gi\u1eef b\u1ed1 tr\u00ed \u0111\u01a1n gi\u1ea3n, b\u1ed9 n\u1ed1i RJ45 gh\u00e9p n\u1ed1i (ganged) mang l\u1ea1i gi\u1ea3i ph\u00e1p tr\u1ef1c quan v\u00e0 d\u1ec5 th\u1ef1c hi\u1ec7n.<\/p><\/blockquote>\n\n\n\n

RJ45 x\u1ebfp ch\u1ed3ng (stacked \u2013 2xN)<\/h3>\n\n\n\n

C\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 x\u1ebfp ch\u1ed3ng cung c\u1ea5p cho b\u1ea1n m\u1ed9t c\u00e1ch \u0111\u1ec3 l\u1eafp \u0111\u1eb7t nhi\u1ec1u k\u1ebft n\u1ed1i h\u01a1n v\u00e0o kh\u00f4ng gian nh\u1ecf h\u01a1n. Trong c\u1ea5u h\u00ecnh x\u1ebfp ch\u1ed3ng, b\u1ea1n s\u1ebd th\u1ea5y hai h\u00e0ng \u0111\u1ea7u n\u1ed1i RJ45 \u0111\u01b0\u1ee3c \u0111\u1eb7t ch\u1ed3ng l\u00ean nhau. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201c
\u201c2\u00d7N
<\/strong>\u201d v\u00ec b\u1ea1n c\u00f3 hai h\u00e0ng, m\u1ed7i h\u00e0ng g\u1ed3m N \u0111\u1ea7u n\u1ed1i. C\u00e1c c\u1ea5u h\u00ecnh ph\u1ed5 bi\u1ebfn bao g\u1ed3m 2\u00d71, 2\u00d72, 2\u00d74, 2\u00d76 v\u00e0 2\u00d78. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi t\u1ed1i \u0111a 16 c\u1ed5ng trong m\u1ed9t m\u00f4-\u0111un hai h\u00e0ng x\u1ebfp ch\u1ed3ng.
.<\/p>\n\n\n\n

C\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 x\u1ebfp ch\u1ed3ng
<\/a> gi\u00fap b\u1ea1n t\u0103ng m\u1eadt \u0111\u1ed9 c\u1ed5ng tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh. Nh\u1eefng \u0111\u1ea7u n\u1ed1i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1eadt \u0111\u1ed9 cao, m\u00e1y ch\u1ee7 v\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng.
. <\/p>\n\n\n\n

C\u1ea5u h\u00ecnh c\u1ed5ng & C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng
<\/h3>\n\n\n\n
\n\n<\/colgroup>

C\u1ea5u h\u00ecnh<\/p><\/th>

C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh
<\/p><\/th><\/tr>

1\u00d72 \/ 1\u00d74 \/ 1\u00d73 \/ 1\u00d76 \/ 1\u00d78 (gh\u00e9p nh\u00f3m)
<\/strong><\/p><\/td>

B\u1ed9 chuy\u1ec3n m\u1ea1ch nh\u1ecf, NAS, h\u1ec7 th\u1ed1ng nh\u00fang
<\/p><\/td><\/tr>

2\u00d71 \/ 2\u00d72 \/ 2\u00d74 \/ 2\u00d76 \/ 2\u00d78 (x\u1ebfp ch\u1ed3ng)
<\/strong><\/p><\/td>

B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n m\u1ea1ch m\u1eadt \u0111\u1ed9 cao, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u00f4ng nghi\u1ec7p
<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

V\u00ed d\u1ee5, b\u1ed9 thu ph\u00e1t LPJG87012CNL
<\/strong><\/a> is a 2\u00d78 c\u1ed5ng
<\/strong>, MagJack 1000Base\u2011T
<\/strong>, ph\u00f9 h\u1ee3p RoHS, t\u00edch h\u1ee3p th\u00e0nh ph\u1ea7n t\u1eeb t\u00ednh \u0111\u1ec3 h\u1ed7 tr\u1ee3 PoE v\u00e0 ki\u1ec3m so\u00e1t EMI, ho\u1ea1t \u0111\u1ed9ng trong d\u1ea3i nhi\u1ec7t \u0111\u1ed9 t\u1eeb \u221220\u202f\u00b0C \u0111\u1ebfn +70\u202f\u00b0C, v\u1ecf b\u1ecdc c\u00f3 l\u1edbp ch\u1eafn m\u1ea1 v\u00e0 ti\u1ebfp \u0111i\u1ec3m m\u1ea1 v\u00e0ng
<\/p>\n\n\n\n

V\u00ec sao n\u00ean ch\u1ecdn c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 \u0111a c\u1ed5ng LINK\u2011PP?
<\/h2>\n\n\n\n

\u2714 M\u1eadt \u0111\u1ed9 c\u1ed5ng cao
<\/h3>\n\n\n\n

C\u00e1c m\u00f4-\u0111un LINK\u2011PP h\u1ed7 tr\u1ee3 c\u00e1c c\u1ea5u h\u00ecnh d\u00e0y \u0111\u1eb7c: m\u1ed9t h\u00e0ng t\u1ed1i \u0111a
1\u00d78 c\u1ed5ng
<\/strong>, hai h\u00e0ng
2\u00d78 c\u1ed5ng x\u1ebfp ch\u1ed3ng
<\/strong>, bao qu\u00e1t to\u00e0n b\u1ed9 c\u00e1c b\u1ed1 tr\u00ed ph\u1ed5 bi\u1ebfn t\u1eeb 1\u00d72, 1\u00d74 cho \u0111\u1ebfn 2\u00d78.
.<\/p>\n\n\n\n

\u2714 T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u & H\u1ed7 tr\u1ee3 PoE
<\/h3>\n\n\n\n

\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho 10\/100, 1000Base\u2011T
<\/strong>, v\u00e0 c\u00e1c t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0
2,5G, 5G, 10GBase\u2011T
<\/strong>. Nhi\u1ec1u m\u1eabu t\u00edch h\u1ee3p
t\u1eeb t\u00ednh t\u00edch h\u1ee3p<\/strong><\/a> (MagJacks) \u0111\u1ec3 h\u1ed7 tr\u1ee3 PoE (IEEE 802.3af\/at\/at\u2011plus) v\u00e0 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI).
.<\/p>\n\n\n\n

\u2714 C\u00e1c t\u00f9y ch\u1ecdn c\u00f3 v\u1ecf ch\u1eafn v\u00e0 kh\u00f4ng c\u00f3 v\u1ecf ch\u1eafn
<\/h3>\n\n\n\n

LINK\u2011PP cung c\u1ea5p c\u1ea3 hai phi\u00ean b\u1ea3n
c\u00f3 v\u1ecf ch\u1eafn v\u00e0 kh\u00f4ng c\u00f3 v\u1ecf ch\u1eafn
<\/strong><\/a> C\u00e1c m\u00f4-\u0111un c\u00f3 v\u1ecf ch\u1eafn c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u1ee9c ch\u1ebf EMI\u2014y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p ho\u1eb7c n\u01a1i c\u00f3 nhi\u1ec5u cao. C\u00e1c phi\u00ean b\u1ea3n kh\u00f4ng c\u00f3 v\u1ecf ch\u1eafn l\u00fd t\u01b0\u1edfng khi m\u1ee9c EMI th\u1ea5p.
.<\/p>\n\n\n\n

\u2714 C\u00e1c bi\u1ebfn th\u1ec3 \u0111\u00e8n LED & ph\u01b0\u01a1ng th\u1ee9c g\u1eafn k\u1ebft
<\/h3>\n\n\n\n

C\u00f3 s\u1eb5n v\u1edbi ho\u1eb7c kh\u00f4ng c\u00f3
\u0111\u00e8n LED m\u00e0u xanh l\u00e1\/cam ho\u1eb7c xanh l\u00e1\/xanh l\u00e1
<\/strong>LED<\/strong><\/a>. C\u00e1c ki\u1ec3u g\u1eafn bao g\u1ed3m
g\u1eafn xuy\u00ean l\u1ed7 (THT)
<\/strong>, h\u00e0n b\u1ec1 m\u1eb7t (SMT)<\/strong>, v\u00e0 nhi\u1ec1u h\u01b0\u1edbng kh\u00e1c nhau c\u1ee7a ch\u1ed1t\/gai c\u1ed1 \u0111\u1ecbnh (h\u01b0\u1edbng l\u00ean, h\u01b0\u1edbng xu\u1ed1ng).
.<\/p>\n\n\n\n

\u2714 Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n v\u00e0 \u0111\u1ed9 tin c\u1eady
<\/h3>\n\n\n\n

T\u1ea5t c\u1ea3 c\u00e1c m\u1eabu \u0111\u1ec1u
RoHS<\/strong><\/a>ph\u00f9 h\u1ee3p RoHS
<\/strong>, \u0111\u01b0\u1ee3c UL c\u00f4ng nh\u1eadn v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n ISO. V\u1ecf b\u1ecdc l\u00e0m b\u1eb1ng
nh\u1ef1a nhi\u1ec7t d\u1ebbo \u0111\u1ea1t chu\u1ea9n UL94V\u20110
<\/strong>, v\u00e0 ti\u1ebfp \u0111i\u1ec3m \u0111\u01b0\u1ee3c m\u1ea1 v\u00e0ng nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady trong d\u1ea3i nhi\u1ec7t \u0111\u1ed9 t\u1eeb 0\u00b0C \u0111\u1ebfn +70\u00b0C ho\u1eb7c \u221240\u00b0C \u0111\u1ebfn +85\u00b0C.
.<\/p>\n\n\n\n

\"Ethernet<\/figure>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 quan tr\u1ecdng ng\u01b0\u1eddi mua c\u1ea7n c\u00e2n nh\u1eafc
<\/h2>\n\n\n\n