The low voltage Nortek Picture-in-Picture Unit will overlay a compressed
image, with an aspect ratio of 4:3, in any one of four corners onto a full
size video image, therefore allowing two colour (or monochrome)
cameras to be recorded at once.
The unit has the ability to mix two realtime
colour video images, no gen locking is required for this purpose. A
video switcher may be connected to either video input allowing the
operator to constantly monitor one camera whilst switching through the
remaining cameras in the system.
An alarm input is provided which, when
activated, will cause the alarmed cameras to be presented as the main
image.