Exam Prep Questions
What is the name of the device that allows four surveillance camera images to be viewed on a monitor at the same time?
||Answer C is correct. A quad switcher is designed to provide simultaneous viewing of four cameras on one monitor using a split-screen display. Answer A is incorrect because a video splitter is used with TV antenna systems and is not an active component required with four-camera surveillance systems. Answer B is incorrect because a modulator is not required for viewing images. Answer D is incorrect because a photoelectric sensor is used to monitor ambient light conditions for security systems and is not required as a ...|
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