Industrial Gigabit Media Converter is 10/100/1000Base-TX to 1000Base-SX/LX Industrial Gigabit Fiber Converter. It will extend transmission distance of network up to 100Km via fiber port, and the UTP port can operation at 10M, 100M and 1000M application. Industrial Gigabit Media Converter Industrial Gigabit Media Converter,Industrial Media Converter,Industrial Fiber Media Converter,Industrial Fiber Converter,Hardend Gigabit Media Converter, Industrial 10/100/1000M Media Converter Shenzhen N-net High-Tech Co.,Ltd , http://www.nnetswitch.com
Industrial Gigabit Media Converter series complied with IEEE 802.3at High Power Over Ethernet technology (optional). It is downward compatible with 802.3af PoE standards to allow users flexibly deploy standard and high powered devices simultaneously with no need of software configuration. With Data and Power over Ethernet from one unit,Industrial gigabit Media Converter series shall reduce cables deployment and eliminate the need for dedicated electrical outlets on the wall, ceiling or any unreachable place.
Industrial gigabit media converter series is packaged in a special compact IP40 metal case that allows either DIN rail or panel mounting for easy installation at control cabinet. It accepts an integrated power supply with a wide range of voltages for worldwide operation. It can also be equipped with dual-redundant, reversible polarity 12V DC to 48V DC power supply inputs for high availability applications requiring dual or backup power inputs.
LED light source can cause damage to oil painting art
Researchers at the University of Antwerp in Belgium have said that the new light source LED produces a lot of blue light, which can cause damage to some oil painting art.
Leticia Monique, a Ph.D. student at the University of Antwerp, found that LED light sources can chemically react chrome yellow pigments commonly used by Van Gogh, a 19th-century painter, to cause color changes. Van Gogh used a lot of very bright chrome yellow pigments in his most famous work, Sunflower. Monique said that most chrome yellow pigments are sensitive to LED light sources and ultraviolet light in sunlight, and only moderate chrome pigments have relatively stable chemical properties.
LED light source has high luminous efficiency, low energy consumption and controllable light type, and is now widely used in art exhibitions. Professor Cohen Jansen of the University of Antwerp said that all museums in Belgium have been notified to use a simple method to detect which chrome yellow pigments are used in the paintings in order to take correct lighting and prevent damage to precious artworks.