Instruction manual

Prosilica GC Technical Manual V2.0.7
54
Camera interfaces
Video iris output description
Prosilica GC 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, etc.
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.
Caution

The following schematic uses CAMERA POWER to power the
video iris lens, and assumes CAMERA POWER = 12 V. Most video
iris lenses operate at a 8–16 V input voltage. Therefore, this
circuit is not appropriate if using a 24 V camera power sup-
ply. Doing so may irreparably damage your lens. Please con-
sult your video iris lens specifications for the appropriate drive
voltage.
Figure 36: Prosilica GC video iris schematic
12 V POWER
CAMERA GND
CAMERA POWER
CAMERA GND
1
2
3
4
VIDEO SIGNAL
LENS POWER
LENS GROUND
JEITA CONNECTOR
1
2
3
4
5
6
7
8
9
10
12
HIROSE HR10A-10P-12S
1
2
3
4
5
6
7
8
9
10
11
12
CABLE SIDE
11