Prosilica GX Technical Manual V2.0.8
48
Camera interfaces
Video iris connection
Prosilica GX 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.
Caution
This diagram 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 supply. Doing
so may irreparably damage your lens
. Please consult your
video iris lens specifications for the appropriate drive voltage.
Figure 31: Prosilica GX video iris schematic
12V POWER
CAMERA GROUND
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
CAMERA POWER
CAMERA GND
1
2
3
4
VIDEO SIGNAL
LENS POWER
LENS GROUND
JEITA CONNECTOR
1
2
3
4
VIDEO
AUTO-IRIS
LENS
4
3
8
7
6
5
2
1
HIROSE 3240-8P-C(50)
