[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-499903-105":59,"doc-detail-499903-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","ns-series-submarine-repeatered-systems","NS Series - Submarine Repeatered Systems","","Optical submarine cable systems enable stable, low-latency international telecommunications, with upgradability advantages over satellite links. NEC provides a total solution for flawless operation over 25 years in deep water, covering system engineering, production of key elements (submersible repeaters, cables, terminal equipment), integration, installation, commissioning, and long-term maintenance. The brochure details NS-series repeatered systems, including line terminal equipment, DWDM benefits, and key components such as repeaters, block equalizers, branching units, OADM branching units, and power feeding 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is the purpose of optical submarine cable systems in international telecommunications?","Question",{"text":113,"@type":114},"They support international connectivity with superior stability, lower latency, and better upgradability compared with satellite systems.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What does NEC provide to ensure long-term operation over 25 years in deep water?",{"text":118,"@type":114},"A total solution covering system engineering, production of key elements, system integration, installation, commissioning, and long-term maintenance support.",{"name":120,"@type":111,"acceptedAnswer":121},"Which components are highlighted for the NS series repeatered submarine system?",{"text":122,"@type":114},"The brochure covers line terminal equipment, submarine repeaters, block equalizers, branching/OADM branching units, and power feeding equipment.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},499903,1791096195,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":36},1374404730887,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","Repeatered and Repeaterless SolutionsSubmarine Systems  \nNEC Corporation  \nUnbeaten performance andreliability in your most criticalglobal infrastructure  \nOptical Submarine Cable systems play a principal role in international telecommunications,thanks to their superiority over satellite systems in terms of stability,latency and upgradability.NEC has been a leading supplier to the submarine cable market since the 1960s.  \nTo guarantee flawless system operation over 25 years in deep water,NEC provides a totalsolution including system engineering,production of key elements (submersible repeaters,cables and terminal equipment),system integration,installation,commissioning,and long-termmaintenance support.  \n\"We have selected NEC as a trusted partner because itis one of the most experienced submarine systemsuppliers,and can deliver the system on time to meetmarket demand”  \n# NS Series -Submarine Repeatered Systems\n\n## Key benefits\n\nDWDM technology enables transmission up to 100Gbpsx100 wavelengths with 10Tbps total capacity per fiber pairUp to 80Tbps capacity is achieved over a cable of 8 fiber pairsTransmission distances up to 12,000km for trans-oceanic networksExtremely reliable submarine network over 25 years lifeHighly agile and flexible solution for growing capacity demands  \n# Example solution\n\n# Line Terminal Equipment\n\nTo meet the needs of transporting high-capacity DWDMsignals over transoceanic distances,specialized Line TerminalEquipment is required.This equipment provides the function oftranslation between the terrestrial network and the underseanetwork.  \n## Key features\n\n●Highly Dense WDM Multiplexing and Demultiplexing  \n●Transmission capacity of up to 10Tbps(100 wavelengths@100Gbps)or  \n7.04Tbps(176 wavelengths @40Gbps)per fiber pair  \nUp to 80Tbps(10Tbps x8 fiber pairs)of cross-sectional capacity  \n●Various channel spacing designs(25GHz/33GHz/50GHz)  \n●Various and flexible tributary interfaces:  \n100GbE,OTU4(software switchable)STM-256,OC-768,OTU3 (software switchable)  \nSTM-64,OC-192,OTU2/2e,10GbE LAN-PHY/WAN-PHY (softwareswitchable)STM-16,OC-48  \n● Enhanced forward error correction function  \n●Automatic tunable dispersion compensation  \n● Simplified maintenance by plug and play scheme  \nExtremely small footprint:up to 16×100G,16×40G or 32×10Gtransponders per rack  \n● 100G,40G and 10G transponders can be mixed in the same rack tooptimize floor space and use of optical spectrum  \n●In-service upgrade without traffic interruption  \n\"We are very happy to rely on NEC'saccumulated experience andexpertise…  \nT740SW with 40G/100Gtransponders  \nT740SW with 10G transponders  \n# Submarine Repeater\n\nThe NEC R640SW Submarine Repeater has been speciallydesigned for DWDM applications including 980nm pumpedErbium Doped Optical Amplifiers(EDFAs).This technologyenables high power amplification for optimized repeaterspacing,a wide and flat amplification gain peak to allow forefficient channel packing density,and a lower noise figurewhich results in more capacity over longer distances with thehighest reliability.Each standard repeater is designed toaccommodate up to 8 amplifier systems.  \n## Key features\n\n● Specially designed for highly reliable DWDM applications  \n● Employs 980nm pumped Erbium Doped Fiber Amplifiers  \n●Extremely reliable pumping(4 pump LDs/amplifier)  \n●Extremely reliable power circuitsWide and flat amplifier gain peakLow noise figure  \n●Accommodates up to 8 amplifier systems(fiber pairs)Ultra pressure-resistant housing for water depths up to 8,000m  \n● Compact size to facilitate deployment and shipboard handling  \n# Block Equalizer\n\nThe Block Equalizer equalizes gain differences among channels in a long haul Dense  \nWavelength Division Multiplex(DWDM)system.When the DWDM signals are transmitted over along distance,gain undulation is accumulated.The Block Equalizer has been developed toobtain flat characteristics across allwavelengths and to maintain high quality transmission inlong haul DWDM systems.  \n●Precise eq","cbCaiiCiI3I4QW1m","https://ap.wps.com/l/cbCaiiCiI3I4QW1m","pdf",2840471,16,"English","# NS Series - Submarine Repeatered Systems\n## Key benefits\n## Example solution\n## Line Terminal Equipment\n### Key features\n# Submarine Repeater\n## Key features\n# Block Equalizer\n# Branching Unit / OADM Branching Unit\n## Key features\n## Main benefits\n# Power Feeding Equipment (PFE)\n## Key features","[{\"question\":\"What is the purpose of optical submarine cable systems in international telecommunications?\",\"answer\":\"They support international connectivity with superior stability, lower latency, and better upgradability compared with satellite systems.\"},{\"question\":\"What does NEC provide to ensure long-term operation over 25 years in deep water?\",\"answer\":\"A total solution covering system engineering, production of key elements, system integration, installation, commissioning, and long-term maintenance support.\"},{\"question\":\"Which components are highlighted for the NS series repeatered submarine system?\",\"answer\":\"The brochure covers line terminal equipment, submarine repeaters, block equalizers, branching/OADM branching units, and power feeding equipment.\"}]","NS Series - Submarine Repeatered Systems | PDF",1791007370]