Fiber optic adapters are typically used to connect two fiber optic cables together. They come in versions to connect single fibers together (simplex), two fibers together (duplex), or sometimes four fibers together (quad). Adapters are designed for multimode or single-mode cables. The single-mode adapters provide more precise alignment of the tips of the connectors and can be used to connect multimode cables. The reverse is not suggested as this might cause misalignment of the small single-mode fibers and loss of signal strength (attenuation).
Optical attenuators can take a number of different forms and are typically classified as fixed or variable attenuators. What's more, they can be classified as LC, SC, ST, FC, MU, etc. according to the different types of connectors.
Sijee provides different types of Optical Fiber Attenuator, Fiber Optic Attenuator, Fiber Optic Fixed Attenuator, FC Fiber Attenuator.
Fiber Optic Attenuator Optical Fiber Attenuator,Fiber Optic Attenuator,Fiber Optic Fixed Attenuator,FC Fiber Attenuator Sijee Optical Communication Technology Co.,Ltd , https://www.sijee-optical.com
China Electric Power Enterprise Association announced on the 28th "2013 national power supply and demand situation analysis and forecast report" is expected in 2013 the country's new installed capacity of about 87 million kilowatts, of which about 40 million kilowatts of thermal power. It is estimated that by the end of 2013, the national installed capacity of power generation will be about 1.23 billion kilowatts, and the installed capacity of power generation is expected to leap to the top in the world, including 280 million kilowatts of hydropower, 860 million kilowatts of thermal power, 14.78 million kilowatts of nuclear power, 75 million kilowatts of grid-connected wind power, and 6 million kilowatts of solar energy on grid. about.
The report believes that in 2013, China's economy will continue to stabilise and pick up, driving the growth in demand for electricity to pick up. It is estimated that by the end of the year, the country's full-caliber power generation capacity will be 1.23 billion kilowatts, and annual power generation equipment utilization hours will be 4700-4800 hours, of which thermal power will be 5050-5150 hours, which is an increase over the previous year. The overall supply of electric coal is stable, and local coal transportation is tight. Throughout the year, the country’s electricity supply and demand balance was generally balanced, and the electricity surplus in Northeast China increased. There is still surplus electricity in the Northwest China. Some provinces in East China and North China may have a small amount of power gap during peak periods.
According to the forecast and preliminary balance, in 2013, the nation’s electricity supply and demand balance in the overall balance, and the northeastern region’s supply surplus capacity increased; the northwestern region’s supply capacity has a certain surplus; the southern region’s electricity supply and demand balance is more than adequate; the central China’s regional electricity supply and demand balance is overall; Some units were shut down for denitrification reforms and natural gas supply was tight, and considering uncertainties such as high temperature and incoming water, some provinces in East China and North China may have a few power gaps during some peak periods. It is estimated that the annual utilization time of power generation equipment will be 4700-4800 hours, of which the utilization time of thermal power equipment will be 5050-5150 hours, which is higher than that in 2012.
Optical attenuators are commonly used in fiber-optic communications, either to test power level margins by temporarily adding a calibrated amount of signal loss, or installed permanently to properly match transmitter and receiver levels. Sharp bends stress optic fibers and can cause losses. If a received signal is too strong a temporary fix is to wrap the cable around a pencil until the desired level of attenuation is achieved. However, such arrangements are unreliable, since the stressed fiber tends to break over time.
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