• On the afternoon of October 17, Shanghai Metro Line 18 held a roll-off ceremony at CRRC Zhuji.  The project train is currently the highest level fully automatic driving train (GoA4) unattended during the whole process.Shanghai Metro Line 18 was initially equipped with 50 vehicles and adopted the national standard 6-section A-type car group, with a maximum speed of 80km/h.Beihai Communication provided on-board passenger information system for Shanghai Line 18 trains. For the GoA4 level, the passenger information system can adapt to a variety of scenarios for linkage, and it fully considers reliability and redundancy. The passenger information system of this project uses a highly redundant ring Ethernet architecture, with dual switches for each vehicle and power supplied separately...
    2019 - 12 - 26
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fiercetelecom | Posted: 22 Aug 2017, 09:58Ciena and Cisco are reaping the benefits as service providers shift spending from long haul to metro WDM (wave-division multiplexing) network builds.As a result of double-digit year-over-year North America growth in metro WDM, Cignal Al said in its second-quarter 2017 Optical Hardware Report that that Cisco and Ciena grew market share. The research firm said that Ciena’s North American optical equipment revenue increased by 21% year-over-year. Interestingly, the growth in metro WDM spending is creating greater demand for higher speed coherent...
发布时间: 2018 - 10 - 10
Views:37
Nokia today formally launched the 5G MoNArch (5G Mobile Network Architecture) research project. Supported and financed as part of Phase II of the 5G Infrastructure Public Private Partnership (5G-PPP) - under the auspices of the European Union's Horizon 2020 Framework Programme - 5G MoNArch will put fifth-generation mobile network architecture into practice.The project consortium, consisting of 14 leading industrial and academic partners and coordinated by Nokia, will focus on the implementation of a set of 5G use cases in real-world testbeds. 5G MoNArch's specific goal is to use network s...
发布时间: 2018 - 09 - 28
Views:33
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