• 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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In the form of Q&A, this article aims to introduce the basic knowledge of fiber optic transceivers in the simplest explanations.     What is the fiber optic transceiver?It is a device that uses fiber optic technology to transmit and receive data. Transceiver is a combination of transmitter and receiver. It is used to convert the electrical signals and optical signals. What is the SFP or SFP+?SFP, Small Form-Factor Pluggable. Classified by package, SFP and SFP+ are two types of fiber optic transceiver. The main difference is that SFP+ is an updated version that supp...
发布时间: 2022 - 08 - 09
Views:6
As more fiber rollouts are announced across the U.S., the broadband industry is facing a looming problem: finding enough workers to actually deploy the tens of millions of new passings they’ve promised. Government statistics show the number of telecommunications workers has dropped drastically over the past decade and that figure isn’t expected to rebound anytime soon. But plug-and-play fiber installation technology could help alleviate the workforce crunch – at least to an extent.According to data from the U.S. Bureau of Labor Statistics (BLS), the number of telecommunications ...
发布时间: 2022 - 08 - 09
Views:4
There is a cause for optimism as the communications service providers (CSPs) enter their second decade of network transformation. That is the main finding of LightCounting's latest edition of its network transformation report entitled: Network Transformation Reaches a Pivotal Phase.On the surface, it is business as usual: CSPs are experiencing paltry growth and continue to search for new revenue opportunities. Yet under the surface, much is being done.Open RAN, a flagship network transformation project, encompasses all its key ingredients: disaggregation, virtualization, automation, a...
发布时间: 2022 - 08 - 05
Views:8
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 cons...
发布时间: 2019 - 12 - 26
Views:59
As the application of optical modules in optical communication becomes more and more extensive, the speed, packaging, power consumption and functions are all developing in the direction of high speed, small size, low power consumption and multi-function. When you search the SFP, you always see that 'DDM support'. So what is DDM?What does DDM mean?Now let's talk about the Digital Diagnostic Monitoring (DDM) function. Definition of DDMDDM (Digital Diagnostic Monitoring), formulated by the industry organization SFF Committee, works in accordance with the standard parameters ...
发布时间: 2022 - 08 - 10
Views:6
Date: September 7th-9th, 2022Venue: Shenzhen World Exhibition and Convention Center, China Organizer: Shenzhen UBM Herong Exhibition Co., Ltd.For more information: www.cioe/cn/en  China International Optoelectronic Exposition(CIOE), regarded as the largest and most influential optoelectronic exhibition in the world, is held annually in Shenzhen, China. Since 1999, it has successfully been held for 23 times, providing a platform for global optoelectronic professionals to meet business partners and learn about the latest trends in the industry. This world-renow...
发布时间: 2022 - 07 - 29
Views:9
Sales of Ethernet optical transceivers set a new record in 2021, reaching $4.6 billion – up 25% from 2020, when the market jumped by 32% after a decline of 18% in 2019, as illustrated in the figure below. LightCounting expects that the growth rate will moderate to a 14% CAGR from 2022 to 2027, but even at this modest growth, the market will reach $10 billion by the end of the forecast period. The market will remain volatile, but our long-term forecast model is not designed to predict the fluctuations but offer a reasonable 5-year target for the industry.What is driving the growth?Let...
发布时间: 2022 - 07 - 29
Views:3
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:41
This year we BEIHAI passed the National High-tech enterprise cerfitication in April, which firmed out intentions in product technology innovation.Warm congratulations again!
发布时间: 2018 - 07 - 06
Views:44
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 n...
发布时间: 2018 - 09 - 28
Views:50
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