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optoisolator

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optoisolator
A device that transfers a signal optically between two electronic circuits, isolating them from each other. An electronic signal on one side is converted to light by a visible or infrared LED. The receiver on the other side detects the light signal and converts it back into electronic format. Optoisolators are used to protect circuits against damage from current surges.
optoisolator [¦äp·tō′ī·sə‚lād·ər]
(electronics)
A coupling device in which a light-emitting diode, energized by the input signal, is optically coupled to a photodetector such as a light-sensitive output diode, transistor, or silicon controlled rectifier. Also known as optical coupler; optical isolator; optically coupled isolator; optocoupler; optoelectronic isolator; photocoupler; photoisolator.
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Interfaces Field bus: CANopen System setup: System configuration via Personal Computer-based Smartview Service Interface: RS 485 asynchron, full duplex 468k Baud Controller 4 analogue inputs: [+ or -] [10 VDC, resolution 12-bit 4 digital inputs: 0/18 32 VDC; 1 OSA; optoisolator 2 digital outputs: 0/18 32 VDC; 30mA; optoisolator, type: open collector Brake driver: 18 to 32 VDC, 5A max.
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By incorporating typical external DAA functions such as the ring detection, line matching hybrid, line-in-use, and parallel pick-up detection, the IA3120/21 reduces the bill of materials (BOM), such as the ring detection optoisolator, and preserves valuable PCB real estate.
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