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A fan controller with LEDs indicating fan status and potentiometers and switches to control fan speeds. Another method, popular with PC hardware enthusiasts, is the manual fan speed controller. They can be mounted in an expansion slot or a 5.25" or 3.5" drive bay or come built into a computer's case. Using switches or knobs, attached fans can ...
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 ...
Lighting control system. A lighting control system incorporates communication between various system inputs and outputs related to lighting control with the use of one or more central computing devices. Lighting control systems are widely used on both indoor and outdoor lighting of commercial, industrial, and residential spaces.
Exhaust fans keep fresh air circulating in your home. Say goodbye to steamy bathrooms, stuffy garages, or smoky kitchens with the best exhaust fans.
DMX512 is a bus network no more than 400 metres (1,300 ft) long, with not more than 32 unit loads (individual devices connected) on a single bus. If more than 32 unit loads need to communicate, the network can be expanded across parallel buses using DMX splitters. Network wiring consists of a shielded twisted pair, with a characteristic ...
Fans are used to force air into low- and high-bypass jet engines, seen here on a Boeing 777. A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor ...
The production control room is occasionally also called an SCR or a gallery – the latter name comes from the original placement of the director on an ornately carved bridge spanning the BBC 's first studio at Alexandra Palace which was once referred to as like a minstrels' gallery. [ 2] Master control is the technical hub of a broadcast ...
Control knob. Two control knobs for a heating/cooling system. The left knob controls the temperature while the right controls the fan speed. A control knob is a rotary device used to provide manual input adjustments to a mechanical / electrical system when grasped and turned by a human operator, so that differing extent of knob rotation ...