Camera lens control signals, Smartek systems – SmarTek Systems SVS-1 User Manual
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SmarTek Systems
410-315-9727
www.smarteksys.com
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Camera Lens Control Signals
Zoom – P (Blue)
Lens Common – R (Brown)
-VDC
+VDC
+VDC
-VDC
Focus – D (Red)
Lens Common – R (Brown)
-VDC
+VDC
+VDC
-VDC
During Camera install and setup, applying DC voltage to the control lines of the camera
will adjust the zoom or focus according to the polarity of the DC voltage applied to the
control lines. Since these adjustments are made only during install and setup, it is
recommended that a 9 VDC battery be used to make the settings. After setting the zoom
and focus use tape or a wire nut to insulate the cable conductors corresponding
to the Zoom (
Blue
), Common (
Brown
), and Focus (
Red
) conductors of the home run cable.