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Catalyst is the brand for a variety of network switches, wireless controllers, and wireless access points sold by Cisco Systems. While commonly associated with Ethernet switches, a number of different types of network interfaces have been available throughout the history of the brand. Cisco acquired several different companies and rebranded ...
Cisco Systems. Cisco Aironet is a maker of wireless networking equipment currently operated as a division of Cisco Systems. It was started by ex- Marconi Wireless employees in 1986 as Telesystems SLW in Canada, right after the United States Federal Communications Commission (FCC) opened up the ISM bands for spread spectrum license-free use.
Visible light communication. Visible light is only a small portion of the electromagnetic spectrum. In telecommunications, visible light communication ( VLC) is the use of visible light ( light with a frequency of 400–800 THz / wavelength of 780–375 nm) as a transmission medium. VLC is a subset of optical wireless communications technologies.
A junction for road vehicles and pedestrians controlled by traffic lights in the UK. The various vehicle and pedestrian movements are separated in either time or space for safety and efficiency. The normal function of traffic lights requires more than sight control and coordination to ensure that traffic and pedestrians move as smoothly, and ...
Optical wireless communications. (Redirected from Optical Wireless Communications) Optical wireless communications ( OWC) is a form of optical communication in which unguided visible, infrared (IR), or ultraviolet (UV) light is used to carry a signal. It is generally used in short-range communication.
Red and blue emergency lights on a fire engine in Canberra, Australia. Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment, emergency vehicle lighting is generally used ...
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