{"id":1699,"date":"2012-11-06T10:43:01","date_gmt":"2012-11-06T03:43:01","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=1699"},"modified":"2012-11-06T10:43:01","modified_gmt":"2012-11-06T03:43:01","slug":"gi%e1%ba%a3i-phap-truy%e1%bb%81n-thong-tin-qua-d%c6%b0%e1%bb%9dng-day-di%e1%bb%87n","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/gi%e1%ba%a3i-phap-truy%e1%bb%81n-thong-tin-qua-d%c6%b0%e1%bb%9dng-day-di%e1%bb%87n\/","title":{"rendered":"Gi\u1ea3i ph\u00e1p truy\u1ec1n th\u00f4ng tin qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n."},"content":{"rendered":"<p>Ng\u00e0y nay khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh, \u0111i theo \u0111\u00f3 l\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a c\u00f4ng ngh\u1ec7 c\u00e0ng \u0111i v\u00e0o th\u1ef1c t\u1ebf h\u01a1n. trong l\u0129nh v\u1ef1c vi\u1ec5n th\u00f4ng n\u00f3i ri\u00eang, n\u1ebfu nh\u01b0 tr\u01b0\u1edbc kia mu\u1ed1n truy\u1ec1n \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u tho\u1ea1i, d\u1eef li\u1ec7u tr\u00ean Internet\u2026 ta ph\u1ea3i s\u1eed d\u1ee5ng ri\u00eang m\u1ed9t \u0111\u00f4i d\u00e2y, khi tri\u1ec3n khai h\u1ec7 th\u1ed1ng trong m\u1ed9t t\u00f2a nh\u00e0 trong kh\u00e1ch s\u1ea1n, resort m\u1edbi x\u00e2y, vi\u1ec7c \u0111i m\u1edbi \u0111\u01b0\u1eddng d\u00e2y l\u00e0 \u0111i\u1ec1u \u0111\u01a1n gi\u1ea3n. Nh\u01b0ng \u0111i\u1ec1u n\u00e0y s\u1ebd v\u00f4 c\u00f9ng kh\u00f3 kh\u0103n n\u1ebfu nh\u01b0 m\u1ed9t kh\u00e1ch s\u1ea1n sang tr\u1ecdng mu\u1ed1n m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng Internet, hay d\u1ecbch v\u1ee5 <a href=\"truyenhinhso.biz.vn\/giaiphap\">IPTV<\/a> m\u00e0 tr\u01b0\u1edbc \u0111\u00f3 ch\u01b0a \u0111i c\u00e1p s\u1eb5n, ph\u1ea3i c\u1eaft t\u01b0\u1eddng ho\u1eb7c \u0111i n\u1ed5i c\u00e1p l\u00e0 vi\u1ec7c \u0111\u00e1ng \u0111\u1ec3 ngh\u0129. V\u1edbi c\u00f4ng ngh\u1ec7 <a href=\"http:\/\/snt.com.vn\/blog\/?p=1699\">Powerline communication (PLC)<\/a> truy\u1ec1n t\u1ea3i th\u00f4ng tin qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n, v\u1ea5n \u0111\u1ec1 \u0111\u00f3 \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft, b\u1ea1n kh\u00f4ng c\u1ea7n c\u1eaft t\u01b0\u1eddng \u0111i \u0111\u01b0\u1eddng c\u00e1p m\u1edbi, kh\u00f4ng c\u1ea7n \u0111i d\u00e2y n\u1ed5i \u0111\u1ec3 m\u1ea5t th\u1ea9m m\u1ef9 c\u1ee7a kh\u00e1ch s\u1ea1n sang tr\u1ecdng, thay v\u00e0o \u0111\u00f3 v\u1edbi gi\u1ea3i ph\u00e1p PLC ch\u1ec9 c\u1ea7n m\u1ed9t modem SNT- 500M-X; SNT- 500M-P; SNT-B200M-x; SNT-B200M&#8230; \u00a0k\u1ebft n\u1ed1i v\u00e0o ngu\u1ed3n \u0111i\u1ec7n 220v, b\u1ea1n c\u00f3 th\u1ec3 g\u1ecdi \u0111i\u1ec7n, g\u1eedi fax,truy c\u1eadp internet t\u1ed1c \u0111\u1ed9 cao, th\u1eadm ch\u1ec9 c\u00f3 th\u1ec3 xem \u0111\u01b0\u1ee3c c\u1ea3 truy\u1ec1n h\u00ecnh IPTV. V\u1ec1 t\u00ednh kinh t\u1ebf gi\u1ea3i ph\u00e1p n\u00e0y tri\u1ec3n khai v\u1edbi gi\u00e1 th\u00e0nh th\u1ea5p.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2012\/10\/PowerlineHouse_Camera1.jpg\" alt=\"\" width=\"471\" height=\"397\" \/><\/p>\n<p style=\"text-align: center;\"><strong> Gi\u1ea3i ph\u00e1p Powerline communication<\/strong><\/p>\n<p>C\u00f4ng ngh\u1ec7 truy\u1ec1n t\u1ea3i th\u00f4ng tin qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n (PLC) cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u qua h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u0111i\u1ec7n gia d\u1ee5ng v\u1edbi t\u1ed1c \u0111\u1ed9 cao. V\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1eddng truy\u1ec1n b\u0103ng th\u00f4ng r\u1ed9ng \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft nh\u1edd t\u1eadn d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng c\u00e1p \u0111i\u1ec7n c\u00f3 ti\u1ebft di\u1ec7n l\u1edbn, t\u1ed1c \u0111\u1ed9 truy\u1ec1n cao g\u1ea5p nhi\u1ec1u l\u1ea7n so v\u1edbi d\u00e2y \u0111i\u1ec7n tho\u1ea1i c\u00e1p \u0111\u1ed3ng c\u00f3 ti\u1ebft di\u1ec7n nh\u1ecf, c\u00e1c thi\u1ebft b\u1ecb truy c\u1eadp internet hay s\u1eed d\u1ee5ng m\u1ea1ng LAN n\u1ed9i b\u1ed9 v\u1eabn d\u00f9ng giao th\u1ee9c IP \u0111\u1ec3 giao ti\u1ebfp, s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 quay s\u1ed1 b\u00ecnh th\u01b0\u1eddng \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7.<\/p>\n<p><span style=\"font-weight: bold;\">L\u1ee3i \u00edch gi\u1ea3i ph\u00e1p PLC mang l\u1ea1i.<\/span><\/p>\n<p><strong> <\/strong><\/p>\n<p>\u2022 \u0110\u00e2y l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p h\u1eefu hi\u1ec7u cho vi\u1ec7c gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00fat th\u1eaft c\u1ed5 chai t\u1ea1i \u0111i\u1ec3m cu\u1ed1i t\u1eadp trung truy c\u1eadp (last mile) \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 b\u0103ng th\u00f4ng r\u1ed9ng t\u1edbi h\u1ed9 gia \u0111\u00ecnh. Th\u00f4ng th\u01b0\u1eddng gateway c\u1ee7a m\u1ea1ng b\u0103ng th\u00f4ng r\u1ed9ng hay b\u1ecb qu\u00e1 t\u1ea3i do g\u1ed9p d\u1eef li\u1ec7u nhi\u1ec1u \u0111\u01b0\u1eddng thu\u00ea bao v\u00e0o.<\/p>\n<p><strong> <\/strong><\/p>\n<p>\u2022 C\u00e1c modem PLC cho ph\u00e9p nh\u1eadn v\u00e0 g\u1eedi c\u00e1c t\u00edn hi\u1ec7u th\u00f4ng tin t\u1ea1i c\u00e1c \u1ed5 c\u1eafm \u0111i\u1ec7n tr\u00ean t\u01b0\u1eddng nh\u00e0. Nh\u01b0 v\u1eady, to\u00e0n b\u1ed9 m\u1ea1ng \u0111i\u1ec7n trong to\u00e0 nh\u00e0 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t m\u1ea1ng LAN truy c\u1eadp n\u1ed9i b\u1ed9.<\/p>\n<p>\u2022 Vi\u1ec7c s\u1eed d\u1ee5ng m\u1ea1ng \u0111i\u1ec7n hi\u1ec7n c\u00f3 (chi\u1ebfm t\u1edbi 90% k\u1ebft n\u1ed1i c\u1ee7a c\u00e1c h\u1ed9 gia \u0111\u00ecnh) s\u1ebd cho ph\u00e9p ph\u1ed5 c\u1eadp th\u00f4ng tin d\u1ec5 d\u00e0ng \u0111\u1ebfn m\u1ecdi v\u00f9ng, m\u1ecdi nh\u00e0. Ch\u1ec9 c\u1ea7n c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng c\u00e1p quang backbone n\u1ed1i t\u1edbi tr\u1ea1m bi\u1ebfn \u00e1p, c\u1ea3 m\u1ed9t khu v\u1ef1c d\u00e2n c\u01b0 l\u1edbn s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng truy c\u1eadp Internet b\u0103ng th\u00f4ng r\u1ed9ng v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 truy\u1ec1n th\u00f4ng kh\u00e1c.<\/p>\n<p>\u2022 Cung c\u1ea5p \u0111\u01b0\u1eddng truy\u1ec1n t\u00edn hi\u1ec7u b\u0103ng th\u00f4ng r\u1ed9ng, kh\u00f4ng ph\u1ea3i \u0111i c\u00e1p quang \u0111\u1ebfn t\u1eebng nh\u00e0, khai th\u00e1c kh\u1ea3 n\u0103ng to l\u1edbn c\u1ee7a m\u1ea1ng \u0111i\u1ec7n hi\u1ec7n c\u00f3, gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u01b0a \u0111\u01b0\u1eddng truy\u1ec1n b\u1eb1ng th\u00f4ng r\u1ed9ng \u0111\u1ebfn h\u1ed9 gia \u0111\u00ecnh.<\/p>\n<p>\u2022 Ti\u1ec1m n\u0103ng to l\u1edbn cho ph\u00e9p t\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp Internet (v\u01b0\u1ee3t xa c\u00e1c c\u00f4ng ngh\u1ec7 hi\u1ec7n c\u00f3). Hi\u1ec7n t\u1ea1i, c\u00f4ng ngh\u1ec7 n\u00e0y s\u1eed d\u1ee5ng c\u00e1c con chip t\u1ed1c \u0111\u1ed9 cao 200 Mbps \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf th\u00f4ng tin trong c\u00e1c modem PLC..<\/p>\n<p>\u2022 D\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t v\u00e0 tri\u1ec3n khai m\u1ea1ng, ch\u1ec9 c\u1ea7n n\u1ed1i \u0111\u01b0\u1eddng c\u00e1p quang \u0111\u1ebfn tr\u1ea1m bi\u1ebfn \u00e1p, l\u1eafp modem HE t\u1ea1i tr\u1ea1m, thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng gateway \u0111\u01b0a t\u1edbi h\u1ed9 gia \u0111\u00ecnh v\u00e0 l\u1eafp modem PLC t\u1ea1i n\u01a1i truy c\u1eadp m\u1ea1ng.<\/p>\n<p><strong>C\u00f4ng ngh\u1ec7 PLC s\u1ebd l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn r\u1ea5t quan tr\u1ecdng c\u1ee7a n\u1ec1n c\u00f4ng ngh\u1ec7 th\u00f4ng tin v\u00e0 truy\u1ec1n th\u00f4ng c\u1ee7a Vi\u1ec7t Nam, kh\u1eafc ph\u1ee5c nh\u1eefng h\u1ea1n ch\u1ebf v\u1ec1 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng, ph\u1ed5 c\u1eadp c\u00e1c d\u1ecbch v\u1ee5 b\u0103ng th\u00f4ng r\u1ed9ng \u0111\u1ebfn m\u1ecdi ng\u01b0\u1eddi d\u00e2n. \u0110\u00e2y s\u1ebd l\u00e0 m\u1ed9t c\u01a1 h\u1ed9i \u0111\u1ec3 n\u1ec1n c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng Vi\u1ec7t Nam theo k\u1ecbp v\u1edbi t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n chung trong khu v\u1ef1c.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ng\u00e0y nay khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh, \u0111i theo \u0111\u00f3 l\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a c\u00f4ng<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71,1],"tags":[146,178,274],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - 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