Camera interfaces
Page 63
Prosilica GB Technical Manual V2.2.6
Video iris user circuit example
Prosilica GB series cameras provide built-in auto iris controls for controlling
video-type auto-iris lenses. These lenses are available from many popular security
lens companies including Pentax, Fujinon, Tamron, Schneider and others.
Remote iris lens control allows the camera to be more adaptable to changing light
conditions. It allows the user to manually control the exposure and gain values and
rely solely on the auto iris for adjustment to ambient lighting.
The following schematic uses Camera Power to power the video iris lens, and
assumes Camera Power = 12 Volts. Most video iris lenses operate at a 8 to 16 Volts
input voltage. Therefore, this circuit is not appropriate if using a 24 Volts camera
power supply. Doing so may irreparably damage your lens. Please consult your
video iris lens specifications for the appropriate drive voltage.
Figure 26: Prosilica GB video iris user circuit diagram
Cable Side
Camera GND
3M 10114-3000PE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Camera GND
Camera Power
Camera Power
1
2
3
4
Lens Power
Video Signal
Lens Ground
JEITA Connector
