{"id":12183,"date":"2019-02-17T08:35:07","date_gmt":"2019-02-17T08:35:07","guid":{"rendered":"https:\/\/www.tarluz.com\/?p=12183"},"modified":"2020-07-29T13:09:11","modified_gmt":"2020-07-29T13:09:11","slug":"introduction-to-400gbase-sr4-2-bidi-standard","status":"publish","type":"post","link":"https:\/\/www.tarluz.com\/de\/400g-network\/introduction-to-400gbase-sr4-2-bidi-standard\/","title":{"rendered":"Introduction to 400GBASE-SR4.2 (BiDi) Standard"},"content":{"rendered":"

The 400GBASE-SR4.2 (BiDi) Standard was announced by the 400G Bidirectional (BiDi) MSA (Multisource Agreement) Group in the year 2018. The specification will be named 400G-BD4.2, to identify the bidirectional use of four lasers each of two colors. Using the 400G-BD4.2 specification, two transceivers communicate over lengths up to 70 meters (OM3 MMF Multimode fiber), 100m (OM4 MMF) and 150m (OM5 MMF).<\/p>\n

The 400G-BD4.2 modules comply with the requirements of the standard and have the following common features: eight optical transmitters and eight optical receivers in a bi-directional optical configuration (four of the transmitters using a wavelength range of 844nm to 863nm, \u03bb1, and four of the transmitters using a wavelength range of 900nm to 918nm, \u03bb2), a signal detect for each optical receiver and a twelve channel MPO fiber optic connector (only eight fibers total are required) using multimode optical fiber.<\/p>\n

400G-BD4.2 Illustrative Power Budget<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/td>\nOM3 MMF<\/td>\nOM4 MMF<\/td>\nOM5 MMF<\/td>\n<\/tr>\n
Effective Modal Bandwidth at 850nm (MHZ KM)<\/td>\n2000<\/td>\n4700<\/td>\n4700<\/td>\n<\/tr>\n
Effective Modal Bandwidth at 918nm (MHZ KM)<\/td>\n1210<\/td>\n1850<\/td>\n2890<\/td>\n<\/tr>\n
Power Budget (For max TDECQ) (dB)<\/td>\n6.6<\/td>\n6.6<\/td>\n6.6<\/td>\n<\/tr>\n
Operating Distance (m)<\/td>\n70<\/td>\n100<\/td>\n150<\/td>\n<\/tr>\n
Channel Insertion Loss (dB)<\/td>\n1.8<\/td>\n1.9<\/td>\n2.0<\/td>\n<\/tr>\n
Allocation for Penalties (for max TDECQ) (dB)<\/td>\n4.6<\/td>\n4.6<\/td>\n4.6<\/td>\n<\/tr>\n
Additional Insertion Loss Allowed (dB)<\/td>\n0.2<\/td>\n0.1<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
  1. Per IEC 60793-2-10.<\/li>\n
  2. Per draft IEC 60793-2-10 (subject to confirmation by TIA and IEC).<\/li>\n
  3. The channel insertion loss is calculated using the maximum distance specified and the cabled optical fiber attenuation of 3.5 dB\/km at 850 nm, plus an allocation of 1.5 dB for connection and splice loss (as given in IEEE P802.3cdTM\/D3.4 Clause 138.10.2.2.1).<\/li>\n
  4. Link penalties are used for link budget calculations. They are not requirements and are not meant to be tested.<\/li>\n<\/ol>\n

    400G-BD4.2 Lane Ordering for MPO Optical Connector<\/strong><\/p>\n

    \"\"<\/p>\n

     <\/p>\n

    The MSA group is dedicated to defining optical interface specifications based on a dual wavelength BiDi transmission technology, which enables a reduction in the fiber count relative to other solutions.<\/p>\n","protected":false},"excerpt":{"rendered":"

    The 400GBASE-SR4.2 (BiDi) Standard was announced by the 400G Bidirectional (BiDi) MSA (Multisource Agreement) Group in the year 2018. The specification will be named 400G-BD4.2, to identify the bidirectional use of four lasers each of two colors. Using the 400G-BD4.2 specification, two transceivers communicate over lengths up to 70 meters (OM3 MMF Multimode fiber), 100m […]<\/p>\n","protected":false},"author":1,"featured_media":13160,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1098],"tags":[],"class_list":["post-12183","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-400g-network"],"yoast_head":"\nIntroduction to 400GBASE-SR4.2 (BiDi) Standard - TARLUZ - FIBER OPTIC SUPPLIERS<\/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:\/\/www.tarluz.com\/de\/400g-network\/introduction-to-400gbase-sr4-2-bidi-standard\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction to 400GBASE-SR4.2 (BiDi) Standard\" \/>\n<meta property=\"og:description\" content=\"The 400GBASE-SR4.2 (BiDi) Standard was announced by the 400G Bidirectional (BiDi) MSA (Multisource Agreement) Group in the year 2018. The specification will be named 400G-BD4.2, to identify the bidirectional use of four lasers each of two colors. Using the 400G-BD4.2 specification, two transceivers communicate over lengths up to 70 meters (OM3 MMF Multimode fiber), 100m […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tarluz.com\/de\/400g-network\/introduction-to-400gbase-sr4-2-bidi-standard\/\" \/>\n<meta property=\"og:site_name\" content=\"TARLUZ - FIBER OPTIC SUPPLIERS\" \/>\n<meta property=\"article:published_time\" content=\"2019-02-17T08:35:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-07-29T13:09:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tarluz.com\/wp-content\/uploads\/2019\/07\/MDC-Bidi.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"261\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"TARLUZ.COM\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"TARLUZ.COM\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/400g-network\\\/introduction-to-400gbase-sr4-2-bidi-standard\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/400g-network\\\/introduction-to-400gbase-sr4-2-bidi-standard\\\/\"},\"author\":{\"name\":\"TARLUZ.COM\",\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/#\\\/schema\\\/person\\\/5740f1b7210de5d651317604459f2fb1\"},\"headline\":\"Introduction to 400GBASE-SR4.2 (BiDi) Standard\",\"datePublished\":\"2019-02-17T08:35:07+00:00\",\"dateModified\":\"2020-07-29T13:09:11+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/400g-network\\\/introduction-to-400gbase-sr4-2-bidi-standard\\\/\"},\"wordCount\":305,\"image\":{\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/400g-network\\\/introduction-to-400gbase-sr4-2-bidi-standard\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.tarluz.com\\\/wp-content\\\/uploads\\\/2019\\\/07\\\/MDC-Bidi.jpg\",\"articleSection\":[\"400G Network\"],\"inLanguage\":\"de\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/400g-network\\\/introduction-to-400gbase-sr4-2-bidi-standard\\\/\",\"url\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/400g-network\\\/introduction-to-400gbase-sr4-2-bidi-standard\\\/\",\"name\":\"Introduction to 400GBASE-SR4.2 (BiDi) Standard - 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