After years of development, 100G applications have formed a variety of technology types and alliances, whether it is the standardized ieee802.3bm or the 100G application model launched by SWDM, MSA and other organizations. There are many kinds of interfaces and application technologies supporting 100G, and each has its own characteristics. For the practical application of the data center, the distance between the connection points of most data centers does not exceed 500 meters. From a large number of 100G interface models, we have selected four types that are most likely to be used in data centers for further analysis for users who need to deploy 100G for reference. 1. 100GBase-SR4 100GBase-SR4 complies with the new standard ieee802.3bm issued in 2015. It uses 4 channels composed of 8-core multimode fiber for parallel transmission. Both multimode OM3 and OM4 optical fibers support 100G applications. The interface adopts 12 core MPO interface. The middle four core optical fiber does not need to be used. Each channel supports 25G. The transmission model is completely consistent with 100GBase-SR4 in ieee802.3ba. The optical transceiver adopts 100G QSFP28 SR4. This model can use conventional OM3 and OM4 multimode optical fibers to support 70m and 100m distances of 100G applications respectively. 2. 100GBase-SWDM4 SWDM (Short Wavelength Division Multiplexing) transmits four wavelength bands of optical signals over a single core of multimode fiber. The principle of WDM is similar to CWDM on single-mode, but SWDM is the first application of WDM technology on the short wavelength band of multimode fiber. It can be referred to the transmission principle model in the following figure: The main transmission window of traditional OM3 and OM4 multimode fiber is defined at 850nm. If SWDM technology is adopted, four windows are required to transmit optical signals, and the four wavebands still use VCSEL vertical cavity surface emitting lasers with high cost performance. In order to improve the overall bandwidth, the bandwidth of the new generation multimode fiber WBMMF(Wideband Multimode Fiber) is increased. In WBMMF, the highest bandwidth performance is around 880nm band, and the highest bandwidth point is higher than that of traditional OM4 multimode fiber. The SWDM technology can also use OM4 optical fiber as the transmission medium, but the transmission distance should be reduced accordingly. Compared with the SR4 model, SWDM4 requires only 25% of the optical fiber.3. 100GBase-PSM4 100GBase-PSM4 adopts single-mode optical fiber parallel transmission mode. Each 100G model adopts 8-core single-mode optical fiber to form four independent channels. The interface adopts 12 core MPO interface, in which the middle 4-core optical fiber of MPO interface is not enabled, and each channel supports 25G. The optical fiber transmission model is similar to 100GBase-SR4. The biggest difference is that PSM4 adopts single-mode optical fiber as the transmission medium and laser light source 1310 window. The optical transceiver also adopts QSFP28, and the connector adopts MTP / MPO single-mode APC. At present, 100GBase PSM4 has not been recognized by IEEE standardization organization, and is mainly promoted by PSM4 MSA alliance. 4. 100GBase-CWDM4 100GBase-CWDM4 is a 100G transmission model based on single-mode coarse wavelength division multiplexing(CWDM) technology. The fiber optic transceiver uses a single-mode laser light source with LC duplex interface, and supports four long wavelength bands of signal transmission on each core fiber, these four emission windows are 1271nm,1291nm,1311nm,1331nm, and each band transmits 25G. 100GBase-CWDM4 model is also used QSFP28 optical transceiver.Compare to traditional single-mode 10KM transceiver with high cost, the 2KM QSFP28 100G CWDM4 transceiver has a competitive price. 5. Summary Different types of data centers determine different needs. Not all data center users currently have the need to deploy 100G, so what types of users need to deploy 100G networks the most? To answer this question, we can divide data centers into two major categories, IDC (Internet Data Center) and EDC (Enterprise Data Center). Relatively speaking, some IDC data centers have more urgency to deploy 100G backbone networks, such as the data centers of large interconnection companies or carriers or some scaled cloud computing data centers. In terms of current price, although the wiring cost of multi-mode 100G based on SR4 is relatively high, the overall price has certain advantages, especially the price of SR4 optical transceiver is significantly lower than that of other types. Meanwhile, the price of optical transceiver based on CWDM single-mode is significantly higher than that of the other three types. The overall price difference between PSM4 and SWDM is small. As the SWDM alliance participated by a small number of optical transceiver manufacturers, it is not a public technology at present, and the market price remains relatively high temporarily. However, from the perspective of technology and cost composition, there is still a large room for price decline of SWDM, and this product has a certain market potential in the future.
Optical Transceiver QSFP28 100G QSFP28 3077 101 07/29/21RECENT POSTS
PARIS, April 25, 2024 /PRNewswire/ -- Zoomlion Heavy Industry Science & Technology Co., Ltd. ("Zoomlion", 01157.HK) proudly showcased its latest advancements at INTERMAT, held at the Nord Villepinte Exhibition Center in Paris from April 24-27, 2024. Themed "Greener Development, Brighter Future", the display featured approximately 30 cutting-edge products across seven major categories, underscoring Zoomlion's commitment to sustainable and intelligent product solutions. Zoomlion Shines at INTERMAT 2024 with a Vision for a Greener, Smarter Future The exhibit included a vibrant array of new-generation machinery such as engineering and construction cranes, concrete machinery, earth-moving equipment, aerial work platforms, and more, all noted for their high-end, intelligent, and eco-friendly features. A highlight was the R135-8RA tower crane, which incorporates major innovations such as remote safety inspections and equipment adjustments, demonstrating Zoomlion's leadership in smart machinery. Visitors at the Paris venue could remotely operate this crane, located over 8,000 kilometers away in Changde, Hunan, through 5G technology, experiencing the intelligent capabilities of Zoomlion's products firsthand. Aligned with the theme "Greener Development, Brighter Future," the showcase prominently featured new energy products including hybrid concrete mixers, electric aerial work platforms, and lithium battery industrial vehicles. It also highlighted energy-efficient technologies in pumps, cranes, and earth-moving equipment, reinforcing the company's dedication to low-carbon development. The company's strategic localization efforts are evident, with products like the 43X-5RZ concrete pump truck, which meets stringent European road regulations and CE certification standards. These adaptations ensure Zoomlion's offerings are well-suited to European market demands, emphasizing performance, technological innovation, and user-friendly design. Zoomlion is enhancing its European market penetration by strengthening synergies with subsidiaries such as CIFA in Italy and m-tec in Germany. On the first day of the exhibition, Zoomlion announced significant contracts with clients from Germany and Poland, with the contract value for concrete products alone nearing 100 million Yuan (US$13.8 million), marking a robust start. Over recent years, Zoomlion has capitalized on internet-based strategies to develop a unique end-to-end, digital, and localized global business system. This approach has propelled strong growth in international markets, with Zoomlion's products and services now available in over 140 countries and regions, supported by more than 3,000 localized employees worldwide. "Zoomlion commits to fostering sustainable and high-quality development in the construction machinery industry. As INTERMAT continues, we invite attendees to experience our innovative solutions firsthand," said Yuan Ye, Zoomlion's Assistant President. "We look forward to strengthening partnerships and showcasing our technological advancements that drive the global industry forward," Yuan added.
KUALA LUMPUR, Malaysia, April 25, 2024 /PRNewswire/ -- Universiti Teknologi Malaysia (UTM) has been designated as Malaysia's Erasmus+ National Focal Point and celebrated the launch of the Erasmus+ Malaysia Hub in conjunction with the Ambassadors' Roundtable 2024, organized by UTM's International Office. UTM’s Vice-Chancellor, pictured here alongside some of notable figures at the launching of the Erasmus+ Malaysia Hub in conjunction with the Ambassadors’ Roundtable 2024 Themed "The Odes of Innovating Solutions: Transfiguring Globalization in Higher Education," the event was officiated by the Deputy Minister of Higher Education, YB Datuk Ts. Mustapha Sakmud, and featured a keynote address by His Excellency Mr. Michalis Rokas, Ambassador and Head of Delegation of the European Union to Malaysia, who highlighted the importance of the Erasmus+ Malaysia Hub. "The launch of the Erasmus+ Malaysia Hub by Universiti Teknologi Malaysia is a pivotal initiative that not only facilitates deeper bilateral relations between Malaysia and the European Union but also addresses broader global challenges," stated HE Michalis Rokas. "This hub stands as a testament to the power of educational and cultural exchanges to bridge significant gaps—be it in skills, understanding, or addressing sensitive global issues." With the support of the EU and the active participation of numerous ambassadors, this initiative is uniquely positioned to tackle existential challenges and promote international cooperation, marking a significant advancement in global educational diplomacy. Located at UTM Kuala Lumpur, the Erasmus+ Malaysia Hub will serve as a one-stop information and discussion center for all Erasmus+ Malaysia-related matters, aiming to enhance collaboration between universities and diplomatic missions in Malaysia, and offering guidance and mentorship to those in the higher education sector. According to UTM's Vice-Chancellor, Prof Datuk Ir Ts Dr Ahmad Fauzi Ismail, the selection of UTM as the Erasmus+ National Focal Point (ENFP) by MoHE is an exceptional honour for our institution. "We are grateful for this recognition and express our heartfelt appreciation to everyone involved", he added. He is also enthusiastic about strengthening bilateral cooperation between UTM and other institutions nationally and internationally. UTM currently leads four Capacity Building in Higher Education (CBHE) actions supporting international cooperation projects through multilateral partnerships and collaborates with 23 universities from nine countries on various Erasmus+ initiatives. "We welcome Vice-Chancellors and International Offices of Universities to collaborate with us to enhance our visibility in various Erasmus+ initiatives through joint work with esteemed institutions worldwide," he stated. With nearly 5,000 international students, UTM recognizes the importance of maintaining close and ongoing conversations with ambassadors to Malaysia, striving to strengthen, invigorate, and empower Malaysian higher education institutions toward global prominence. One hundred fifty participants attended the Ambassadors' Roundtable 2024, including 18 ambassadors, Vice-Chancellors, and representatives from university international offices across Malaysia. About Universiti Teknologi Malaysia (UTM): Universiti Teknologi Malaysia (UTM) is a leading public research university in Malaysia, dedicated to advancing knowledge and nurturing future leaders. UTM is committed to excellence in education, research, and innovation, making a significant impact on society and industry. As a global institution, UTM is known for its cutting-edge research and its role in developing innovative solutions to global challenges.
BEIJING, April 25, 2024 /PRNewswire/ -- At Auto China 2024, CATL (SZ.300750) unveiled Shenxing PLUS—the world's first LFP battery that achieves a range above 1,000 kilometers with 4C superfast charging. Within eight months after the launch of the Shenxing superfast charging battery in August 2023, CATL has once again pushed the boundaries of LFP battery technology, ushering in the era of superfast charging for the whole industry. Dr. Wu Kai, chief scientist of CATL Shenxing PLUS Gao Huan, CTO of CATL’s China E-car Business CATL product launch 1,000-km Super-Long Range Ensures Worry-free Travel The Shenxing PLUS battery provides users with a super-long range driving experience, exceeding 1,000 kilometers, which means a trip from Beijing to Nanjing without recharging on the road. This allows new energy vehicles to not only meet commuting needs in urban areas but also accommodate long-distance inter-provincial travel. The 1,000-km pure electric range comes from continuous technological breakthroughs. The cathode of Shenxing PLUS is made with a granular gradation technology, which places every nanometer particle in the optimal position to achieve ultra-high compact density. The proprietary 3D honeycomb-shaped material is added to the anode, boosting the energy density while effectively controlling the volume expansion during charge and discharge cycles. The single-piece casing, which is an industry first, optimizes the internal space utilization, allowing the Shenxing PLUS cells to reach an unprecedented energy density level. At the system level, the Shenxing PLUS battery pack has a topological structure optimized on top of module-free CTP 3.0 technology, enhancing the packing efficiency by 7%. Through breakthroughs in materials and structure, the Shenxing battery system's energy density surpasses the 200 Wh/kg threshold for the first time, reaching 205 Wh/kg, making ranges over 1,000 kilometers a reality. Faster Charging Delivers 600 km on 10-minute Charge Aside from offering long range, Shenxing PLUS also charges fast. It can deliver a 600-km range in just 10 minutes of charging, far surpassing the usual batteries available on the market and realizing a true superfast charging speed of one kilometer per second. To achieve the leapfrogging of charging speed, Shenxing PLUS applies technologies including fast lithium-ion conductive coating, the addition of transition metal elements, and new nanometer encapsulation, rendering smoother and more efficient energy transmission between cathode and anode materials. CATL has expanded the overcurrent area and capacity of the terminals in the battery system to rapidly dissipate heat during high-current charging. In terms of BMS core algorithms, CATL's newly-developed AI polarization model can predict and control the charging current in real time, enabling faster and smarter energy replenishment. Superfast Charging Batteries + Network + Services Create a Closed Loop Ecosystem In addition to exceptional new batteries, CATL has also initiated the construction of the Shenxing Superfast Charging Network to build the largest superfast charging service platform in China. CATL is collaborating with industry-leading partners like Star Charge, YKC and Shudao New Energy to provide the most convenient and cost-effective mobility experience for more owners of cars powered by Shenxing superfast charging batteries. CATL is further planned to launch the industry's first Shenxing superfast charging vehicle owners club, operating in over 600 service outlets covering 271 prefecture-level cities in 31 provincial-level regions. It will provide Shenxing vehicle owners with roadside rescue, battery inspection and maintenance, and other services. On its journey of continuous expansion of scientific frontiers and the utmost pursuit of a better life, CATL is ushering in a superfast charging era for new energy vehicles with a closed-loop supercharging ecosystem by integrating superfast charging battery, network, platform, and services.
New DJI Agricultural Drones Launch Globally with Upgraded SmartFarm App SHENZHEN, China, April 25, 2024 /PRNewswire/ -- DJI, the world leader in civilian drones and creative camera technology, today announced the international launch of the Agras T50 and Agras T25 drones. Building on the popular Agras drone line, the T50 offers unmatched efficiency for larger-scale growing operations, while the lightweight T25 is designed to be more portable for smaller fields. Both drones are compatible with the upgraded SmartFarm app which offers powerful features for comprehensive aerial application management. DJI Agras T50 and T25 "As a global leader in agriculture technology, we aim to push precision agriculture forward with the latest DJI Agras drones for spraying and spreading. To date, over 980 million acres worldwide across over 100 countries and regions have been treated by DJI Agriculture drones," said Yuan Zhang, Head of Global Sales at DJI Agriculture. "With our proven solutions for crop protection, family farmers and large-scale growers can improve yields, reduce chemical usage, and cut costs, while minimizing environmental impact." Better Growth with the Agras T50 The Agras T50 is a flagship of efficiency and stability, born from a deep understanding of the demands of large-scale farming. It inherits a coaxial dual-rotor design and 54-inch propellers for next-level stability when carrying 40kg spraying or 50kg spreading payloads, which enables efficient spraying of up to 50 acres (21 hectares) per hour1. T50's dual atomization spraying system, with an increased flow rate of up to 16 liters per minute with two sprinklers and adjustable-sized spray droplets, is ideal for a variety of applications from fields to orchards. Easily converted to its spreading configuration, the T50 can carry 50 kg of dry granules and spread at a flow rate of up to 108 kg/min1 or 1.5 tonnes per hour1. This combination of power, precision, and versatility sets T50 apart as a top choice in agricultural drones, designed to meet the evolving needs of modern farming. Breakthroughs in Connectivity and Stability T50 features an upgraded four-antenna O3 Transmission system, extending the remote controller-drone connection up to 2 km1. For operations over mountains and other complex environments, users can deploy a DJI Relay to extend transmission range and stability for improved operation safety. Dual Radar and Dual Binocular Vision for Obstacle Bypassing and Terrain Following T50 features dual Active Phased Array Radars and binocular vision sensors. These work together to accurately reconstruct the T50's surroundings and detect nearby obstacles, for intelligent obstacle sensing and bypassing, and Terrain Following over slopes. Four Sprinkler Kit T50 can be equipped with an additional pair of centrifugal sprinklers, increasing flow rate to 24 liters per minute. This benefits tasks like orchard spraying that require a higher flow rate to penetrate dense canopies and treat the fronts and backs of leaves. 9-Minute Fast Charging T50 is powered by a DB1560 Intelligent Flight Battery, with a capacity of up to 30 Ah and 1500 charge cycles1. The D12000iEP Multifunctional Inverter Generator paired with the Air-Cooled Heat Sink enables 9-minutes1 fast charging, allowing for continuous operations with a pair of batteries. Agras T25 - Precision Agriculture in a Portable Package The Agras T25 packs all the advanced features of the T50 into a smaller, portable design. It can carry a 20kg spraying or 25kg spreading payload and includes the T50's top features like multidirectional obstacle avoidance, Terrain Following, ultra-fast battery charging, one-tap takeoffs, and automatic operations. This makes it perfect for solo use in small to medium-sized farms. DJI SmartFarm - Essential Agras Assistant The DJI SmartFarm app streamlines daily drone operations for crop protection and plot management with enhanced data visualization and reporting, a dynamic device management dashboard, and easy access to after sales support and learning resources on DJI Academy. Availability The Agras T50 and T25 can now be reserved starting April 25. Interested buyers can get pricing from local authorized DJI Agriculture dealers. Learn more: ag.dji.com/t50 and ag.dji.com/t25. 1 All data was measured using a production model in a controlled environment. For more information, please refer to our official website: ag.dji.com For more information, visit our:Website: ag.dji.comFacebook: facebook.com/DJIAgricultureTwitter: twitter.com/DJIAgricultureYouTube: youtube.com/@DJIAgricultureInstagram: instagram.com/dji.agras
