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Vandal-proof
To completely avoid the camera from external impact and make it ideal for video surveillance outdoors.
Varifocal lens
A lens, that has a variable focal length that can set manually.
Video IRIS
One type of AutoIRIS, a video iris lens has an amplified circuit for converting input video signal to a DC input for the camera.
VPN (Virtual Private Network)
Virtual Private Network; is a private communications network often used within a company.
VOP
Video Object Plane, a VOP is an image frame of an MPEG-4 video stream.
