Auto Iris (AI) - is an electronic circuit that acts as an iris on CCD cameras by electronically shuttering the CCD sensor. Or An automatic method of varying the size of a lens opening in response to changes in scene illumination.
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BNC - is the type of connector plug commonly found on CCTV devices for video and audio input/output connections. BNC is the choice for broadcast video and security video professionals because of its locking design. BNC plugs are easily adapted to standard consumer RCA connectors using a simple one-piece plug adapter.
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Bullet Camera - A bullet design refers to a camera with a cylindrical shape using an inline video imaging chip (rather than a board design). These cameras are sometimes also called "lipstick cameras" or "inline CCD cameras."
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CCTV - stands for closed circuit television: a video system which will only be monitored in a closed environment (as opposed to public broadcast). The realm of video security and surveillance is also referred to as CCTV.
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