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Security monitoring four core auto iris lens connection plug (installed)
   In function of the camera, select the effect you want to play a good lens effect, here the automatic iris lens aperture connection. Either side of the camera or behind the switch setting, or select the menu for the camera only showed the two drive auto iris are applicable, and the wiring is different in different driving modes, which is caused by the internal structure of different lenses. DC drive power motor and substantially directly to the lens level signal, the control operation of the motor, sometimes also called direct drive; while the inner lens has a video driver amplifier receiving the video signal needs to be converted into the lens motor control signal level in .
     Auto iris connection are the same, your camera and lens are clearly written instructions. General DC drive auto iris lens has been even better cable plugs directly into the camera can be. Mark four core plugs were 1 - Control -; 2 - Control +; 3 - Drive +; 4 - Driver -; video drive auto iris lens needs its own welding ,1 - VCC +,3 - Video feedback; 4 - VCC-