{"id":492491,"date":"2025-09-23T08:12:09","date_gmt":"2025-09-23T01:12:09","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=492491"},"modified":"2025-09-23T08:12:09","modified_gmt":"2025-09-23T01:12:09","slug":"switch-poe","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/switch-poe\/","title":{"rendered":"Switch PoE v\u00e0 Switch th\u01b0\u1eddng: \u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a t\u1eebng lo\u1ea1i v\u00e0 so s\u00e1nh"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong l\u0129nh v\u1ef1c m\u1ea1ng m\u00e1y t\u00ednh, <\/span><b>Switch PoE <\/b><span style=\"font-weight: 400;\">\u0111\u00f3ng vai tr\u00f2 nh\u01b0 \u201ctr\u00e1i tim\u201d c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u1ea3m nhi\u1ec7m nhi\u1ec7m v\u1ee5 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb v\u1edbi nhau. M\u1ed7i lo\u1ea1i mang \u0111\u1ebfn nh\u1eefng \u01b0u \u0111i\u1ec3m ri\u00eang, \u0111\u1ed3ng th\u1eddi c\u0169ng t\u1ed3n t\u1ea1i h\u1ea1n ch\u1ebf nh\u1ea5t \u0111\u1ecbnh, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng c\u1ea7n c\u00e2n nh\u1eafc k\u1ef9 tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn. Sau \u0111\u00e2y, <strong><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\">Ho\u00e0ng H\u00e0 Mobile<\/a><\/strong> s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 hai lo\u1ea1i switch, t\u1eeb \u0111\u1ecbnh ngh\u0129a, \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m, cho \u0111\u1ebfn s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee5 th\u1ec3 khi so s\u00e1nh.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Switch PoE l\u00e0 g\u00ec?<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong l\u0129nh v\u1ef1c m\u1ea1ng m\u00e1y t\u00ednh, Switch l\u00e0 m\u1ed9t trong nh\u1eefng thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">L\u00e0 g\u00ec?<\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Power over Ethernet l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1eb7c bi\u1ec7t: v\u1eeba truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u m\u1ea1ng, v\u1eeba c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i th\u00f4ng qua c\u00f9ng m\u1ed9t s\u1ee3i c\u00e1p Ethernet. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u1ec9 v\u1edbi m\u1ed9t d\u00e2y m\u1ea1ng, thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1eeba c\u00f3 th\u1ec3 nh\u1eadn d\u1eef li\u1ec7u, v\u1eeba c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng. \u0110\u00e2y l\u00e0 gi\u1ea3i ph\u00e1p ti\u1ec7n l\u1ee3i, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong vi\u1ec7c tri\u1ec3n khai c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 camera IP, \u0111i\u1ec7n tho\u1ea1i IP, \u0111i\u1ec3m truy c\u1eadp WiFi (Access Point), hay c\u00e1c thi\u1ebft b\u1ecb IoT.<\/span><\/p>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-1.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-1-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-1-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-492493 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-1.jpg\" alt=\"switch-PoE-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">S\u1ef1 ra \u0111\u1eddi c\u1ee7a <\/span><b>switch PoE<\/b><span style=\"font-weight: 400;\"> \u0111\u00e3 gi\u00fap gi\u1ea3i quy\u1ebft nhi\u1ec1u b\u1ea5t ti\u1ec7n trong vi\u1ec7c l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb m\u1ea1ng, \u0111\u1eb7c bi\u1ec7t \u1edf nh\u1eefng khu v\u1ef1c kh\u00f3 b\u1ed1 tr\u00ed ngu\u1ed3n \u0111i\u1ec7n. V\u00ed d\u1ee5, khi c\u1ea7n l\u1eafp camera an ninh tr\u00ean cao ho\u1eb7c \u1edf ngo\u00e0i tr\u1eddi, vi\u1ec7c k\u00e9o ngu\u1ed3n \u0111i\u1ec7n ri\u00eang \u0111\u00f4i khi v\u1eeba ph\u1ee9c t\u1ea1p, v\u1eeba t\u1ed1n k\u00e9m. V\u1edbi PoE, b\u1ea1n ch\u1ec9 c\u1ea7n k\u00e9o m\u1ed9t s\u1ee3i c\u00e1p m\u1ea1ng duy nh\u1ea5t t\u1eeb switch \u0111\u1ebfn thi\u1ebft b\u1ecb, ti\u1ebft ki\u1ec7m chi ph\u00ed l\u1eabn c\u00f4ng s\u1ee9c.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">C\u00e1c chu\u1ea9n PoE hi\u1ec7n nay g\u1ed3m IEEE 802.3af (PoE), IEEE 802.3at (PoE+), IEEE 802.3bt (PoE++), m\u1ed7i chu\u1ea9n h\u1ed7 tr\u1ee3 c\u00f4ng su\u1ea5t kh\u00e1c nhau, \u0111\u00e1p \u1ee9ng nhu c\u1ea7u t\u1eeb c\u00e1c thi\u1ebft b\u1ecb nh\u1ecf \u0111\u1ebfn thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u01afu \u0111i\u1ec3m<\/span><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt \u0111\u1ea7u ti\u00ean l\u00e0 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng d\u00e2y d\u1eabn v\u00e0 \u1ed5 \u0111i\u1ec7n c\u1ea7n l\u1eafp \u0111\u1eb7t. Nh\u1edd vi\u1ec7c v\u1eeba truy\u1ec1n d\u1eef li\u1ec7u v\u1eeba c\u1ea5p \u0111i\u1ec7n qua m\u1ed9t s\u1ee3i c\u00e1p Ethernet, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n k\u00e9o d\u00e2y ngu\u1ed3n ri\u00eang cho t\u1eebng thi\u1ebft b\u1ecb.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Th\u1ee9 hai, PoE cho ph\u00e9p l\u1eafp \u0111\u1eb7t linh ho\u1ea1t \u1edf nhi\u1ec1u v\u1ecb tr\u00ed kh\u00e1c nhau. C\u00e1c thi\u1ebft b\u1ecb nh\u01b0 camera IP, \u0111i\u1ec7n tho\u1ea1i IP ho\u1eb7c Access Point c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf nh\u1eefng n\u01a1i kh\u00f3 k\u00e9o d\u00e2y \u0111i\u1ec7n, ch\u1eb3ng h\u1ea1n tr\u1ea7n nh\u00e0, g\u00f3c t\u01b0\u1eddng, h\u00e0nh lang ho\u1eb7c ngo\u00e0i tr\u1eddi.\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-2.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-2-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-2-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"size-full wp-image-492494 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-2.jpg\" alt=\"switch-PoE-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, m\u1ed9t s\u1ed1 <\/span><b>switch PoE<\/b><span style=\"font-weight: 400;\"> hi\u1ec7n \u0111\u1ea1i c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd ngu\u1ed3n th\u00f4ng minh. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 theo d\u00f5i c\u00f4ng su\u1ea5t s\u1eed d\u1ee5ng c\u1ee7a t\u1eebng c\u1ed5ng, \u01b0u ti\u00ean c\u1ea5p \u0111i\u1ec7n cho thi\u1ebft b\u1ecb quan tr\u1ecdng, ho\u1eb7c t\u1eaft ngu\u1ed3n t\u1eeb xa khi c\u1ea7n b\u1ea3o tr\u00ec.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cu\u1ed1i c\u00f9ng, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng linh ho\u1ea1t c\u0169ng l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf l\u1edbn. Khi c\u1ea7n b\u1ed5 sung thi\u1ebft b\u1ecb m\u1edbi, ch\u1ec9 c\u1ea7n k\u1ebft n\u1ed1i th\u00eam v\u00e0o PoE m\u00e0 kh\u00f4ng c\u1ea7n lo \u0111\u1ebfn vi\u1ec7c b\u1ed1 tr\u00ed \u1ed5 c\u1eafm \u0111i\u1ec7n.<\/span><\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/span><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u01b0\u1ee3c \u0111i\u1ec3m \u0111\u1ea7u ti\u00ean ch\u00ednh l\u00e0 gi\u1edbi h\u1ea1n c\u00f4ng su\u1ea5t c\u1ea5p ngu\u1ed3n. M\u1ed7i PoE ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p m\u1ed9t m\u1ee9c c\u00f4ng su\u1ea5t nh\u1ea5t \u0111\u1ecbnh, th\u01b0\u1eddng t\u1eeb 15W (PoE) \u0111\u1ebfn 90W (PoE++). N\u1ebfu h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng nhi\u1ec1u thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 \u0111i\u1ec7n l\u1edbn c\u00f9ng l\u00fac, t\u1ed5ng c\u00f4ng su\u1ea5t c\u00f3 th\u1ec3 v\u01b0\u1ee3t ng\u01b0\u1ee1ng, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i ho\u1eb7c kh\u00f4ng \u0111\u1ee7 ngu\u1ed3n cho t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Th\u1ee9 hai, chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n so v\u1edbi switch th\u01b0\u1eddng. Gi\u00e1 m\u1ed9t PoE th\u01b0\u1eddng \u0111\u1eaft h\u01a1n kho\u1ea3ng 20\u201350% so v\u1edbi lo\u1ea1i kh\u00f4ng h\u1ed7 tr\u1ee3 PoE. B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i h\u1ed7 tr\u1ee3 PoE (camera IP, \u0111i\u1ec7n tho\u1ea1i IP, Access Point) c\u0169ng th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u00e0nh cao h\u01a1n so v\u1edbi phi\u00ean b\u1ea3n th\u01b0\u1eddng.\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-3.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-3-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-3-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"size-full wp-image-492495 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-3.jpg\" alt=\"switch-PoE-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1ed9t h\u1ea1n ch\u1ebf kh\u00e1c l\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng b\u1ecb r\u00e0ng bu\u1ed9c b\u1edfi c\u00f4ng su\u1ea5t t\u1ed5ng. N\u1ebfu doanh nghi\u1ec7p c\u00f3 k\u1ebf ho\u1ea1ch m\u1edf r\u1ed9ng nhanh ch\u00f3ng s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb, c\u1ea7n t\u00ednh to\u00e1n k\u1ef9 c\u00f4ng su\u1ea5t switch ho\u1eb7c ph\u1ea3i \u0111\u1ea7u t\u01b0 th\u00eam switch kh\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p s\u1ef1 c\u1ed1 k\u1ef9 thu\u1eadt x\u1ea3y ra, n\u1ebfu switch h\u1ecfng th\u00ec c\u1ea3 d\u1eef li\u1ec7u l\u1eabn ngu\u1ed3n \u0111i\u1ec7n c\u1ea5p cho thi\u1ebft b\u1ecb \u0111\u1ec1u b\u1ecb ng\u1eaft. \u0110i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c b\u1ea3o tr\u00ec, thay th\u1ebf c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n so v\u1edbi switch th\u01b0\u1eddng.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Switch th\u00f4ng th\u01b0\u1eddng Ethernet l\u00e0 g\u00ec?<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh <\/span><b>Switch PoE<\/b><span style=\"font-weight: 400;\">, switch th\u01b0\u1eddng Ethernet v\u1eabn gi\u1eef vai tr\u00f2 quan tr\u1ecdng trong h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng. V\u1eady lo\u1ea1i switch n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a nh\u01b0 th\u1ebf n\u00e0o v\u00e0 ho\u1ea1t \u0111\u1ed9ng ra sao?<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">L\u00e0 g\u00ec?<\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Switch th\u01b0\u1eddng, hay c\u00f2n g\u1ecdi l\u00e0 Ethernet switch, l\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng LAN. Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 k\u1ebft n\u1ed1i nhi\u1ec1u thi\u1ebft b\u1ecb trong c\u00f9ng m\u1ed9t m\u1ea1ng n\u1ed9i b\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y t\u00ednh, m\u00e1y in, server, ho\u1eb7c router, \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 trao \u0111\u1ed5i d\u1eef li\u1ec7u v\u1edbi nhau m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-4.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-4-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-4-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-492496 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-4.jpg\" alt=\"switch-PoE-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Kh\u00e1c v\u1edbi <\/span><b>switch PoE<\/b><span style=\"font-weight: 400;\">, switch th\u01b0\u1eddng kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n qua d\u00e2y m\u1ea1ng. N\u00f3i c\u00e1ch kh\u00e1c, n\u00f3 ch\u1ec9 ch\u1ecbu tr\u00e1ch nhi\u1ec7m truy\u1ec1n d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i. Do \u0111\u00f3, nh\u1eefng thi\u1ebft b\u1ecb nh\u01b0 camera IP, Access Point hay \u0111i\u1ec7n tho\u1ea1i IP s\u1ebd c\u1ea7n \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n ri\u00eang bi\u1ec7t th\u00f4ng qua adapter ho\u1eb7c b\u1ed9 c\u1ea5p ngu\u1ed3n ngo\u00e0i.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Switch th\u01b0\u1eddng hi\u1ec7n nay c\u00f3 nhi\u1ec1u lo\u1ea1i v\u1edbi s\u1ed1 l\u01b0\u1ee3ng c\u1ed5ng kh\u00e1c nhau, t\u1eeb 4, 8, 16, 24 cho \u0111\u1ebfn 48 c\u1ed5ng, \u0111\u00e1p \u1ee9ng \u0111a d\u1ea1ng nhu c\u1ea7u s\u1eed d\u1ee5ng t\u1eeb h\u1ed9 gia \u0111\u00ecnh, v\u0103n ph\u00f2ng nh\u1ecf \u0111\u1ebfn doanh nghi\u1ec7p l\u1edbn. Ngo\u00e0i ra, c\u00f2n c\u00f3 c\u00e1c d\u00f2ng switch kh\u00f4ng qu\u1ea3n l\u00fd (unmanaged switch) v\u00e0 switch qu\u1ea3n l\u00fd (managed switch), cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng t\u00f9y ch\u1ecdn theo nhu c\u1ea7u c\u1ea5u h\u00ecnh v\u00e0 gi\u00e1m s\u00e1t m\u1ea1ng.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u01afu \u0111i\u1ec3m<\/span><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a switch th\u01b0\u1eddng l\u00e0 chi ph\u00ed th\u1ea5p. Do kh\u00f4ng t\u00edch h\u1ee3p t\u00ednh n\u0103ng c\u1ea5p ngu\u1ed3n qua Ethernet, switch th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u00e0nh r\u1ebb h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi<\/span><b> switch PoE<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ti\u1ebfp theo, switch th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u1ec1 t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 tin c\u1eady. V\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o nhi\u1ec7m v\u1ee5 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u n\u00ean thi\u1ebft b\u1ecb \u00edt g\u1eb7p l\u1ed7i li\u00ean quan \u0111\u1ebfn c\u00f4ng su\u1ea5t ho\u1eb7c gi\u1edbi h\u1ea1n ngu\u1ed3n.\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-5.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-5-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-5-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-492497 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-5.jpg\" alt=\"switch-PoE-5\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-5.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-5-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-5-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">M\u1ed9t \u0111i\u1ec3m c\u1ed9ng kh\u00e1c l\u00e0 \u0111a d\u1ea1ng m\u1eabu m\u00e3 v\u00e0 t\u00f9y ch\u1ecdn. Switch th\u01b0\u1eddng c\u00f3 nhi\u1ec1u lo\u1ea1i v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau nh\u01b0 Fast Ethernet (100Mbps), Gigabit Ethernet (1Gbps), th\u1eadm ch\u00ed l\u00ean \u0111\u1ebfn 10Gbps cho doanh nghi\u1ec7p.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, d\u1ec5 d\u00e0ng tri\u1ec3n khai v\u00e0 b\u1ea3o tr\u00ec c\u0169ng l\u00e0 l\u1ee3i th\u1ebf. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n c\u1eafm d\u00e2y m\u1ea1ng v\u00e0 thi\u1ebft b\u1ecb s\u1ebd ho\u1ea1t \u0111\u1ed9ng ngay m\u00e0 kh\u00f4ng c\u1ea7n c\u1ea5u h\u00ecnh ph\u1ee9c t\u1ea1p. Vi\u1ec7c thay th\u1ebf ho\u1eb7c n\u00e2ng c\u1ea5p switch c\u0169ng nhanh ch\u00f3ng, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.\u00a0<\/span><\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/span><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u01b0\u1ee3c \u0111i\u1ec3m d\u1ec5 th\u1ea5y nh\u1ea5t l\u00e0 kh\u00f4ng th\u1ec3 c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n qua d\u00e2y m\u1ea1ng. \u0110i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i l\u1eafp \u0111\u1eb7t th\u00eam \u1ed5 c\u1eafm \u0111i\u1ec7n ho\u1eb7c adapter ngu\u1ed3n cho t\u1eebng thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i. Trong c\u00e1c h\u1ec7 th\u1ed1ng l\u1edbn nh\u01b0 camera IP ho\u1eb7c Access Point WiFi, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y t\u1ed1n k\u00e9m chi ph\u00ed v\u00e0 m\u1ea5t nhi\u1ec1u c\u00f4ng s\u1ee9c trong vi\u1ec7c \u0111i d\u00e2y, l\u1eafp \u0111\u1eb7t v\u00e0 qu\u1ea3n l\u00fd.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Th\u1ee9 hai, switch th\u01b0\u1eddng kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd ngu\u1ed3n \u0111i\u1ec7n t\u1eeb xa nh\u01b0 <\/span><b>switch PoE<\/b><span style=\"font-weight: 400;\">. Do \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 gi\u00e1m s\u00e1t ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh n\u0103ng l\u01b0\u1ee3ng cho t\u1eebng thi\u1ebft b\u1ecb qua giao di\u1ec7n qu\u1ea3n l\u00fd.\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-6.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-6-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-6-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-492498 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-6.jpg\" alt=\"switch-PoE-6\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-6.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-6-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-6-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, t\u00ednh n\u0103ng h\u1ea1n ch\u1ebf c\u0169ng l\u00e0 m\u1ed9t \u0111i\u1ec3m y\u1ebfu. Ph\u1ea7n l\u1edbn switch th\u01b0\u1eddng ch\u1ec9 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u k\u1ebft n\u1ed1i c\u01a1 b\u1ea3n, kh\u00f4ng h\u1ed7 tr\u1ee3 nhi\u1ec1u c\u00f4ng c\u1ee5 qu\u1ea3n tr\u1ecb n\u00e2ng cao nh\u01b0 VLAN, QoS hay gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng. Ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n c\u00f3 c\u00e1c t\u00ednh n\u0103ng n\u00e0y s\u1ebd ph\u1ea3i l\u1ef1a ch\u1ecdn switch qu\u1ea3n l\u00fd (managed switch) ho\u1eb7c s\u1ea3n ph\u1ea9m cao c\u1ea5p h\u01a1n, \u0111\u1ed3ng ngh\u0129a v\u1edbi chi ph\u00ed t\u0103ng l\u00ean.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cu\u1ed1i c\u00f9ng, trong b\u1ed1i c\u1ea3nh ng\u00e0y c\u00e0ng nhi\u1ec1u thi\u1ebft b\u1ecb IoT, camera an ninh v\u00e0 WiFi Access Point c\u1ea7n c\u1ea5p ngu\u1ed3n qua Ethernet, switch th\u01b0\u1eddng kh\u00f4ng c\u00f2n l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n khi m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng n\u1ebfu c\u00e1c thi\u1ebft b\u1ecb m\u1edbi y\u00eau c\u1ea7u PoE, d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u1ea3i \u0111\u1ea7u t\u01b0 b\u1ed5 sung thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c thay th\u1ebf switch hi\u1ec7n c\u00f3.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">So s\u00e1nh gi\u1eefa Switch PoE v\u00e0 Switch th\u00f4ng th\u01b0\u1eddng<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 \u0111\u1ec1u l\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch trong h\u1ec7 th\u1ed1ng m\u1ea1ng, PoE v\u00e0 switch th\u01b0\u1eddng c\u00f3 nhi\u1ec1u \u0111i\u1ec3m kh\u00e1c bi\u1ec7t.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">So s\u00e1nh v\u1ec1 kh\u1ea3 n\u0103ng c\u1ea5p ngu\u1ed3n<\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110i\u1ec3m kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n v\u00e0 d\u1ec5 nh\u1eadn th\u1ea5y nh\u1ea5t gi\u1eefa PoE v\u00e0 switch th\u01b0\u1eddng ch\u00ednh l\u00e0 kh\u1ea3 n\u0103ng c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n qua d\u00e2y m\u1ea1ng. PoE \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n t\u1ea3i c\u1ea3 d\u1eef li\u1ec7u v\u00e0 \u0111i\u1ec7n n\u0103ng th\u00f4ng qua m\u1ed9t s\u1ee3i c\u00e1p Ethernet duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y mang l\u1ea1i s\u1ef1 ti\u1ec7n l\u1ee3i r\u1ea5t l\u1edbn, \u0111\u1eb7c bi\u1ec7t trong nh\u1eefng h\u1ec7 th\u1ed1ng c\u1ea7n tri\u1ec3n khai nhi\u1ec1u thi\u1ebft b\u1ecb \u1edf v\u1ecb tr\u00ed kh\u00f3 k\u00e9o ngu\u1ed3n \u0111i\u1ec7n. Nh\u1edd \u0111\u00f3, c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 camera IP, \u0111i\u1ec7n tho\u1ea1i IP hay Access Point WiFi c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng ch\u1ec9 v\u1edbi m\u1ed9t s\u1ee3i d\u00e2y m\u1ea1ng, gi\u00fap ti\u1ebft ki\u1ec7m kh\u00f4ng gian, chi ph\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 t\u1ed1i gi\u1ea3n h\u1ea1 t\u1ea7ng.<\/span><\/p>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-7.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-7-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-7-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-492499 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-7.jpg\" alt=\"switch-PoE-7\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-7.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-7-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-7-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ng\u01b0\u1ee3c l\u1ea1i, switch th\u01b0\u1eddng ch\u1ec9 th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5 truy\u1ec1n d\u1eef li\u1ec7u m\u1ea1ng, ho\u00e0n to\u00e0n kh\u00f4ng c\u1ea5p ngu\u1ed3n cho thi\u1ebft b\u1ecb. Do v\u1eady, c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u1ea7n \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n ri\u00eang qua adapter ho\u1eb7c \u1ed5 c\u1eafm \u0111i\u1ec7n. Trong m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng nh\u1ecf, \u0111i\u1ec1u n\u00e0y kh\u00f4ng ph\u1ea3i v\u1ea5n \u0111\u1ec1 qu\u00e1 l\u1edbn. Tuy nhi\u00ean, khi tri\u1ec3n khai h\u1ec7 th\u1ed1ng camera gi\u00e1m s\u00e1t ho\u1eb7c m\u1ea1ng WiFi di\u1ec7n r\u1ed9ng, vi\u1ec7c ph\u1ea3i b\u1ed1 tr\u00ed ngu\u1ed3n \u0111i\u1ec7n cho t\u1eebng thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 g\u00e2y ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n k\u00e9m.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">So s\u00e1nh v\u1ec1 c\u00f4ng su\u1ea5t v\u00e0 hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng<\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Khi x\u00e9t \u0111\u1ebfn c\u00f4ng su\u1ea5t, <\/span><b>switch PoE<\/b><span style=\"font-weight: 400;\"> c\u00f3 l\u1ee3i th\u1ebf r\u00f5 r\u00e0ng v\u00ec ngo\u00e0i vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u, n\u00f3 c\u00f2n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i. Tuy nhi\u00ean, PoE l\u1ea1i b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi t\u1ed5ng c\u00f4ng su\u1ea5t m\u00e0 n\u00f3 c\u00f3 th\u1ec3 c\u1ea5p ph\u00e1t. V\u00ed d\u1ee5, m\u1ed9t PoE 8 c\u1ed5ng c\u00f3 th\u1ec3 cung c\u1ea5p t\u1ed1i \u0111a 120W, t\u1ee9c trung b\u00ecnh 15W m\u1ed7i c\u1ed5ng theo chu\u1ea9n IEEE 802.3af. N\u1ebfu k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao nh\u01b0 camera h\u1ed3ng ngo\u1ea1i ho\u1eb7c Access Point c\u00f4ng su\u1ea5t l\u1edbn, switch d\u1ec5 b\u1ecb qu\u00e1 t\u1ea3i.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-8.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-8-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-8-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-492500 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-8.jpg\" alt=\"switch-PoE-8\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-8.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-8-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-8-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong khi \u0111\u00f3, switch th\u01b0\u1eddng kh\u00f4ng c\u1ea7n quan t\u00e2m \u0111\u1ebfn y\u1ebfu t\u1ed1 c\u00f4ng su\u1ea5t v\u00ec n\u00f3 kh\u00f4ng c\u1ea5p \u0111i\u1ec7n qua Ethernet. Nhi\u1ec7m v\u1ee5 duy nh\u1ea5t c\u1ee7a n\u00f3 l\u00e0 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u, do v\u1eady hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng th\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh h\u01a1n, \u00edt x\u1ea3y ra s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn ngu\u1ed3n \u0111i\u1ec7n. Switch th\u01b0\u1eddng c\u00f3 th\u1ec3 t\u1eadp trung ho\u00e0n to\u00e0n v\u00e0o vi\u1ec7c x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng, mang l\u1ea1i \u0111\u1ed9 tin c\u1eady cao trong truy\u1ec1n d\u1eef li\u1ec7u.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">V\u1ec1 t\u1ed1c \u0111\u1ed9, c\u1ea3 PoE v\u00e0 switch th\u01b0\u1eddng \u0111\u1ec1u c\u00f3 nhi\u1ec1u phi\u00ean b\u1ea3n t\u1eeb Fast Ethernet (100Mbps), Gigabit (1Gbps) cho \u0111\u1ebfn 10Gbps, ph\u1ee5c v\u1ee5 nhu c\u1ea7u \u0111a d\u1ea1ng. Do \u0111\u00f3, x\u00e9t ri\u00eang v\u1ec1 t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u, hai lo\u1ea1i switch n\u00e0y kh\u00f4ng c\u00f3 qu\u00e1 nhi\u1ec1u s\u1ef1 kh\u00e1c bi\u1ec7t, m\u00e0 \u0111i\u1ec3m kh\u00e1c ch\u1ee7 y\u1ebfu n\u1eb1m \u1edf vi\u1ec7c PoE ph\u1ea3i \u201cchia s\u1ebb\u201d ngu\u1ed3n l\u1ef1c \u0111\u1ec3 v\u1eeba c\u1ea5p \u0111i\u1ec7n v\u1eeba x\u1eed l\u00fd d\u1eef li\u1ec7u.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">So s\u00e1nh v\u1ec1 chi ph\u00ed \u0111\u1ea7u t\u01b0<\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Chi ph\u00ed l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh l\u1edbn khi l\u1ef1a ch\u1ecdn switch. <\/span><b>Switch PoE<\/b><span style=\"font-weight: 400;\"> th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u00e0nh cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi switch th\u01b0\u1eddng do t\u00edch h\u1ee3p th\u00eam m\u1ea1ch c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n. Ch\u00eanh l\u1ec7ch n\u00e0y c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u1eeb 20% \u0111\u1ebfn 50% t\u00f9y theo th\u01b0\u01a1ng hi\u1ec7u, s\u1ed1 l\u01b0\u1ee3ng c\u1ed5ng v\u00e0 chu\u1ea9n PoE h\u1ed7 tr\u1ee3 (PoE, PoE+, PoE++). B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i h\u1ed7 tr\u1ee3 PoE nh\u01b0 camera IP hay Access Point c\u0169ng th\u01b0\u1eddng c\u00f3 gi\u00e1 cao h\u01a1n so v\u1edbi phi\u00ean b\u1ea3n kh\u00f4ng PoE.<\/span><\/p>\n<p style=\"text-align: justify;\"><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-9.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-9-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2025\/09\/switch-PoE-9-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-492501 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-9.jpg\" alt=\"switch-PoE-9\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-9.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-9-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2025\/09\/switch-PoE-9-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ng\u01b0\u1ee3c l\u1ea1i, switch th\u01b0\u1eddng c\u00f3 \u01b0u th\u1ebf v\u1ec1 gi\u00e1 r\u1ebb v\u00e0 ph\u1ed5 bi\u1ebfn, ph\u00f9 h\u1ee3p v\u1edbi h\u1ea7u h\u1ebft nhu c\u1ea7u c\u01a1 b\u1ea3n. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n b\u1ecf ra m\u1ed9t kho\u1ea3n chi ph\u00ed th\u1ea5p \u0111\u00e3 c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng m\u1ea1ng \u1ed5n \u0111\u1ecbnh, nh\u1ea5t l\u00e0 trong c\u00e1c v\u0103n ph\u00f2ng nh\u1ecf, h\u1ed9 gia \u0111\u00ecnh ho\u1eb7c doanh nghi\u1ec7p kh\u00f4ng y\u00eau c\u1ea7u c\u1ea5p ngu\u1ed3n qua Ethernet.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Tuy nhi\u00ean, khi x\u00e9t v\u1ec1 chi ph\u00ed d\u00e0i h\u1ea1n, PoE l\u1ea1i c\u00f3 l\u1ee3i th\u1ebf v\u00ec gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed l\u1eafp \u0111\u1eb7t d\u00e2y \u0111i\u1ec7n v\u00e0 ngu\u1ed3n ph\u1ee5. Trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn, kho\u1ea3n ti\u1ebft ki\u1ec7m n\u00e0y c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp ph\u1ea7n ch\u00eanh l\u1ec7ch gi\u00e1 ban \u0111\u1ea7u.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"font-weight: 400;\">L\u1eddi k\u1ebft<\/span><\/h2>\n<p style=\"text-align: justify;\"><b>Switch PoE<\/b><span style=\"font-weight: 400;\"> v\u00e0 switch th\u01b0\u1eddng \u0111\u1ec1u l\u00e0 nh\u1eefng gi\u1ea3i ph\u00e1p m\u1ea1ng hi\u1ec7u qu\u1ea3, tuy nhi\u00ean, s\u1ef1 l\u1ef1a ch\u1ecdn ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u th\u1ef1c t\u1ebf v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u1ea7u t\u01b0 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. N\u1ebfu h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u c\u1ea5p ngu\u1ed3n qua c\u00e1p m\u1ea1ng cho c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 camera IP, \u0111i\u1ec7n tho\u1ea1i VoIP hay Access Point, Switch c\u00f3 PoE s\u1ebd l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u. Ng\u01b0\u1ee3c l\u1ea1i, v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01a1n gi\u1ea3n, ch\u1ec9 c\u1ea7n truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u, switch th\u01b0\u1eddng mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf h\u01a1n.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>XEM TH\u00caM:<\/strong><\/p>\n<p><strong><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cach-doi-mat-khau-wifi-tp-link\/\">C\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi TP-Link, Tenda, FPT, Viettel, \u2026 c\u1ef1c nhanh ch\u00f3ng<\/a><\/strong><\/p>\n<p><strong><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/card-wifi\/\">Card Wifi tr\u00ean laptop l\u00e0 g\u00ec? C\u00f3 n\u00e2ng c\u1ea5p \u0111\u01b0\u1ee3c kh\u00f4ng? C\u00f3 nh\u1eefng lo\u1ea1i n\u00e0o?<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong l\u0129nh v\u1ef1c m\u1ea1ng m\u00e1y t\u00ednh, Switch PoE \u0111\u00f3ng vai tr\u00f2 nh\u01b0 \u201ctr\u00e1i tim\u201d c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u1ea3m nhi\u1ec7m nhi\u1ec7m v\u1ee5 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb v\u1edbi nhau. M\u1ed7i lo\u1ea1i mang \u0111\u1ebfn nh\u1eefng \u01b0u \u0111i\u1ec3m ri\u00eang, \u0111\u1ed3ng th\u1eddi c\u0169ng t\u1ed3n t\u1ea1i h\u1ea1n ch\u1ebf nh\u1ea5t \u0111\u1ecbnh, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng c\u1ea7n c\u00e2n nh\u1eafc k\u1ef9 tr\u01b0\u1edbc khi l\u1ef1a [&hellip;]<\/p>\n","protected":false},"author":65,"featured_media":492492,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29235,3910],"tags":[],"class_list":["post-492491","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goc-to-mo","category-kham-pha"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Switch PoE v\u00e0 Switch th\u01b0\u1eddng: \u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a t\u1eebng lo\u1ea1i<\/title>\n<meta name=\"description\" content=\"Ho\u00e0ng H\u00e0 Mobile s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 hai lo\u1ea1i Switch PoE v\u00e0 Switch th\u01b0\u1eddng, t\u1eeb \u0111\u1ecbnh ngh\u0129a, \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 kh\u00e1c bi\u1ec7t c\u1ee5 th\u1ec3.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hoanghamobile.com\/tin-tuc\/switch-poe\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Switch PoE v\u00e0 Switch th\u01b0\u1eddng: \u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a t\u1eebng lo\u1ea1i v\u00e0 so s\u00e1nh\" \/>\n<meta property=\"og:description\" content=\"Ho\u00e0ng H\u00e0 Mobile s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 hai lo\u1ea1i Switch PoE v\u00e0 Switch th\u01b0\u1eddng, t\u1eeb \u0111\u1ecbnh ngh\u0129a, \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 kh\u00e1c bi\u1ec7t c\u1ee5 th\u1ec3.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hoanghamobile.com\/tin-tuc\/switch-poe\/\" \/>\n<meta property=\"og:site_name\" content=\"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - 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