{"id":975,"date":"2011-02-28T17:03:54","date_gmt":"2011-02-28T10:03:54","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=975"},"modified":"2011-02-28T17:03:54","modified_gmt":"2011-02-28T10:03:54","slug":"gi%e1%ba%a3i-phap-pon-v%e1%bb%9bi-thi%e1%ba%bft-b%e1%bb%8b-c%e1%bb%a7a-corecesshan-qu%e1%bb%91c1","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/gi%e1%ba%a3i-phap-pon-v%e1%bb%9bi-thi%e1%ba%bft-b%e1%bb%8b-c%e1%bb%a7a-corecesshan-qu%e1%bb%91c1\/","title":{"rendered":"Gi\u1ea3i ph\u00e1p PON v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a Corecess(H\u00e0n Qu\u1ed1c)(1)"},"content":{"rendered":"<p><span style=\"text-decoration: underline;\"><strong>1- Corecess l\u00e0 ai?<\/strong><\/span><\/p>\n<p>Corecess, m\u1ed9t h\u00e3ng chuy\u00ean thi\u1ebft k\u1ebf, ph\u00e1t tri\u1ec3n v\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb vi\u1ec5n th\u00f4ng cho m\u1ea1ng truy nh\u1eadp b\u0103ng r\u1ed9ng\u00a0 H\u00e0n Qu\u1ed1c, \u0111\u1eb7c bi\u1ec7t v\u1ec1 m\u1ea1ng truy nh\u1eadp c\u00e1p quang v\u1edbi nh\u1eefng c\u00f4ng ngh\u1ec7 li\u00ean k\u1ebft quang ti\u00ean ti\u1ebfn nh\u01b0 Gigabit Ethernet Passive Optical Network v\u00e0 Wavelength Division Multiplex Passive Optical Network\u2026<\/p>\n<p>C\u00f4ng ty TNHH Si\u00eau Nh\u1eadt Thanh ch\u00fang t\u00f4i t\u1ef1 h\u00e0o l\u00e0 m\u1ed9t trong nh\u1eefng nh\u00e0 ph\u00e2n ph\u1ed1i ch\u00ednh c\u00e1c s\u1ea3n ph\u1ea9m v\u1ec1 GEPON v\u00e0 WDM-PON \u1edf Vi\u1ec7t Nam.<\/p>\n<p>Trong b\u00e0i vi\u1ebft n\u00e0y, t\u00f4i xin gi\u1edbi thi\u1ec7u gi\u1ea3i PON c\u1ee7a SNT v\u1edbi c\u00e1c thi\u1ebft b\u1ecb t\u1eeb nh\u00e0 cung c\u1ea5p Corecess.<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>2- Gi\u1ea3i ph\u00e1p<\/strong><\/span><\/p>\n<p>Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf b\u00e0i vi\u1ebft AON v\u00e0 PON(ph\u1ea7n 1), ch\u00fang t\u00f4i c\u00f3 m\u00f4 h\u00ecnh gi\u1ea3i ph\u00e1p \u0111\u01a1n gi\u1ea3n nh\u01b0 sau:<\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<figure id=\"attachment_977\" aria-describedby=\"caption-attachment-977\" style=\"width: 611px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2011\/02\/Corecess-solution3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-977\" title=\"Corecess solution3\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2011\/02\/Corecess-solution3.png\" alt=\"\" width=\"611\" height=\"353\" \/><\/a><figcaption id=\"caption-attachment-977\" class=\"wp-caption-text\">H\u00ecnh 1<\/figcaption><\/figure>\n<p><br class=\"spacer_\" \/><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p>M\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef ch\u00ednh trong b\u00e0i vi\u1ebft:<\/p>\n<p><strong>&#8211;<\/strong><strong> OLT<\/strong>(<strong>O<\/strong>ptical <strong>L<\/strong>ine <strong>T<\/strong>erminal): l\u00e0 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i CO(Central Office)-g\u1ecdi \u0111\u01a1n gi\u1ea3n l\u00e0 t\u1ed5ng \u0111\u00e0i. Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a OLT l\u00e0 l\u1eafp r\u00e1p l\u01b0u l\u01b0\u1ee3ng \u0111\u1ebfn t\u1eeb m\u1ea1ng internet (Voice, Data) v\u00e0o l\u1edbp v\u1eadn chuy\u1ec3n PON ho\u1eb7c AON.<\/p>\n<p><strong>&#8211;<\/strong><strong> ONT(O<\/strong>ptical <strong>N<\/strong>etwork <strong>T<\/strong>ermination<strong>) <\/strong>v\u00e0<strong> ONU(O<\/strong>ptical <strong>N<\/strong>etwork <strong>U<\/strong>nit<strong>): <\/strong>ONT<strong> <\/strong>v\u00e0 ONU v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 thi\u1ebft b\u1ecb nh\u01b0 nhau, tuy nhi\u00ean, ONT th\u00ec \u0111\u01b0\u1ee3c \u0111\u1eb7t ngay t\u1ea1i nh\u00e0 thu\u00ea bao, c\u00f2n ONU th\u00ec \u0111\u01b0\u1ee3c \u0111\u1ea1t \u1edf b\u00ean ngo\u00e0i nh\u00e0 thu\u00ea bao<em>(outside at home), <\/em>th\u01b0\u1eddng c\u00f3 s\u1ed1 l\u01b0\u1ee3ng c\u1ed5ng giao ti\u1ebfp l\u1edbn<em>.<\/em><\/p>\n<p><em> <\/em><\/p>\n<p><strong>&#8211; ODN<\/strong>(<strong>O<\/strong>ptical <strong>D<\/strong>istribution <strong>N<\/strong>etwork): m\u1ea1ng ph\u00e2n ph\u1ed1i quang, l\u00e0 t\u1eadp h\u1ee3p nhi\u1ec1u <strong><em>splitter<\/em><\/strong> \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo ki\u1ec3u Tree, Bus, Ring\u2026t\u00f9y theo m\u1ee5c \u0111\u00edch ph\u1ee5c v\u1ee5 c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5.<\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<figure id=\"attachment_978\" aria-describedby=\"caption-attachment-978\" style=\"width: 468px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2011\/02\/sp.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-978\" title=\"sp\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2011\/02\/sp.png\" alt=\"\" width=\"468\" height=\"333\" \/><\/a><figcaption id=\"caption-attachment-978\" class=\"wp-caption-text\">H\u00ecnh 2<\/figcaption><\/figure>\n<p><br class=\"spacer_\" \/><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><strong> 2.1. DWDM-PON<\/strong><\/p>\n<p>Nh\u01b0 theo h\u00ecnh v\u1ebd 1, t\u1eeb OLT S518, v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 DWDM c\u00f3 t\u1ed1c \u0111\u1ed9 16 x GbE, qua m\u1ed9t b\u1ed9 Demux DWDM, ch\u00fang ta s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c 16 k\u00eanh truy\u1ec1n \u1ee9ng v\u1edbi 16 b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau. \u1ede m\u1ea1ng truy nh\u1eadp thu\u00ea bao, ta s\u1eed d\u1ee5ng 1 switch quang 24 c\u1ed5ng cho 1 trong 16 k\u00eanh sau b\u1ed9 Demux, th\u00ec s\u1ed1 l\u01b0\u1ee3ng thu\u00ea \u1ee9ng ph\u1ee5c v\u1ee5 \u0111\u01b0\u1ee3c v\u1edbi 1 \u0111\u01b0\u1eddng truy\u1ec1n l\u00e0 16&#215;24= 384 thu\u00ea bao v\u00e0 b\u0103ng th\u00f4ng cho m\u1ed7i thu\u00ea bao l\u00e0 g\u1ea7n 42Mbps(1Gbps\/24). V\u1edbi l\u01b0\u1ee3ng b\u0103ng th\u00f4ng kh\u00e1 l\u1edbn n\u00e0y, m\u1ed7i thu\u00ea bao c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ed1t d\u1ecbch v\u1ee5 Triple Play v\u1edbi Voice, Data, Video khi s\u1eed d\u1ee5ng c\u00e1c ONT h\u1ed9 tr\u1ee3 Triple Play Service.<\/p>\n<p><strong> 2.2.GEPON<\/strong><\/p>\n<p><em> <\/em><\/p>\n<p>\u1ee8ng v\u1edbi m\u1ed7i \u0111\u01b0\u1eddng truy\u1ec1n k\u00e9o t\u1eeb OLT, s\u1ed1 l\u01b0\u1ee3ng thu\u00ea bao ph\u1ee5c v\u1ee5 \u0111\u01b0\u1ee3c c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ed1 l\u1ea7n chia(s\u1ed1 splitter) trong m\u1ea1ng ODN.<\/p>\n<p>M\u1ed9t module LIM c\u1ee7a d\u00f2ng corecess S5 ch\u1ec9 ph\u1ee5c v\u1ee5 \u0111\u01b0\u1ee3c c\u00e1c user trong ph\u1ea1m vi kho\u1ea3ng 20km, c\u00f2n t\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a splitter\u2026V\u1ea5n \u0111\u1ec1 \u0111\u0103t ra l\u00e0 trong ph\u1ea1m vi b\u00e1n k\u00ednh 20km bao quanh CO, s\u1ed1 l\u01b0\u1ee3ng kh\u00e1ch h\u00e0ng kh\u00f4ng chi\u1ebfm \u0111\u1ea7y h\u1ebft kh\u1ea3 n\u0103ng ph\u1ee5c v\u1ee5 c\u1ee7a S5, m\u00e0 nhu c\u1ea7u \u1edf xa h\u01a1n v\u1eabn c\u00f3. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, ta s\u1eed d\u1ee5ng th\u00eam c\u00e1c mini OLT S102 \u1edf \u0111\u1ea7u xa \u1ee9ng v\u1edbi m\u1ed7i \u0111\u01b0\u1eddng li\u00ean k\u1ebft k\u00e9o xu\u1ed1ng(nh\u01b0 trong m\u00f4 h\u00ecnh \u1edf tr\u00ean)\u2026V\u1eady l\u00e0 ta \u0111\u00e3 t\u0103ng \u0111\u01b0\u1ee3c ph\u1ea1m v\u1ecb ph\u1ee5c v\u1ee5 thu\u00ea bao.<\/p>\n<p><a href=\"http:\/\/snt.com.vn\/blog\/?p=987\" target=\"_blank\"><em>&#8230;C\u00f2n ti\u1ebfp&#8230;<\/em><\/a><\/p>\n<p><em> <\/em><\/p>\n<p><em> <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1- Corecess l\u00e0 ai? Corecess, m\u1ed9t h\u00e3ng chuy\u00ean thi\u1ebft k\u1ebf, ph\u00e1t tri\u1ec3n v\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb vi\u1ec5n th\u00f4ng cho<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[74,1,83],"tags":[235],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gi\u1ea3i ph\u00e1p PON v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a Corecess(H\u00e0n Qu\u1ed1c)(1) - Blog SNT - C\u00f4ng Ty TNHH Si\u00eau Nh\u1eadt Thanh - Sao Nhanh Th\u1ebf<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/snt.com.vn\/blog\/gi\u1ea3i-phap-pon-v\u1edbi-thi\u1ebft-b\u1ecb-c\u1ee7a-corecesshan-qu\u1ed1c1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gi\u1ea3i ph\u00e1p PON v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a Corecess(H\u00e0n Qu\u1ed1c)(1) - Blog SNT - C\u00f4ng Ty TNHH Si\u00eau Nh\u1eadt Thanh - Sao Nhanh Th\u1ebf\" \/>\n<meta property=\"og:description\" content=\"1- Corecess l\u00e0 ai? 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