The reporter learned from the city's transportation department that a few days ago, the city issued the "13th Five-Year" electric vehicle charging infrastructure development plan. By 2020, the city will form a charging and replacement service network consisting of 171 charging and replacing stations and 50,500 charging piles.
According to the plan, during the “Thirteenth Five-Year Plan†period, the city will give priority to the construction of charging infrastructure for public service areas such as public transportation, rental and sanitation and logistics, and add more than 66 bus replacement stations and 35 taxi replacement stations. Special car charging stations such as sanitation logistics.
Actively promote the combination of official and private passenger car users in residential areas and unit parking spaces to build charging piles, adding more than about 42,600 sets of user-specific charging piles to meet basic charging needs. At the same time, encourage conditional facilities to be open to the public.
More than 30 urban public charging stations and 600 decentralized DC public charging piles have been built in urban public parking lots such as transportation hubs, large-scale cultural and sports facilities, urban green spaces, large-scale building parking lots, and on-street parking spaces. 2,800 DC chargers, 1,200 sub-tank chargers and 1,300 AC charging piles are arranged throughout the city.
CWDM - Coarse Wavelength Division Multiplex
CCWDM is Compact CWDM (Compact Coarse Wavelength Division Multiplexing), a wavelength division multiplexing technology based on TFF (Thin Film Filter). It works in the same way as CWDM modules, except that CCWDM uses free space technology. , compared with the common CWDM optical fiber cascading method , the CCWDM package size is greatly reduced compared with CWDM modules, and the insertion loss is lower and the consistency is better; it can replace CWDM Products are used in telecommunications, enterprise networks, PON networks, cable television and other fields. The lower insertion loss enables the CCWDM module to have lower signal attenuation during use, thereby reducing the power requirements of the signal transmitter.
For the CWDM module, limited by the minimum bending radius of the optical fiber line, the size of the packaging box cannot be made too small, resulting in most of the space in the box being idle. The adjacent channels of CCWDM use parallel beams to cascade in free space instead of optical fibers. Without the optical fiber used for cascading, the size of the CCWDM packaging box can be greatly reduced. For example, the size of the common standard 4CH CWDM is 80×60×12 mm, and the size of the CCWDM module of Yiyuantong is 50×27×7.7mm, which is only 1/4 of the standard CWDM package size. Can be widely used in high-density environments.
Coarse Wdm Splitter,Wdm Splitter,Wdm Device
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