Camera interfaces
AVT Prosilica GT Technical Manual
V2.0.8
59
Lens control port
Prosilica GT cameras can be used with C-/CS-Mount auto iris lenses of DC type,
and P-Iris type.
Both DC and P-Iris lens types use the same standard connector, located on the
side of the camera. Lens type is automatically determined by the camera on
power-up. Connecting the lens after the camera is powered will not damage the
lens, but it will not be recognized by the camera; therefore, the relevant camera
control attributes will not function. If this occurs, disconnect and reconnect the
camera power supply.
Note
Video-type auto iris lenses are not supported.
Motorized CCTV lenses are not supported.
***Read lens descriptions carefully before purchasing***
For example, a “motorized iris lens” may be a bipolar single
axis motorized lens, and not a DC auto iris or P-Iris lens
Figure 43: Prosilica GT lens control port
DC AutoIris Mode
P-Iris Mode
PIN NUMBER PIN FUNCTION
VOLTAGE MAX CURRENT PIN NUMBER PIN FUNCTION
VOLTAGE
MAX CURRENT
1
Damp – (input)
N/A
N/A
1
Coil 1 A (output) 0 V or 3.3 V
100 mA
2
Damp + (input)
N/A
N/A
2
Coil 2 A (output) 0 V or 3.3 V
100 mA
3
Drive + (output) 3.3 V
50 mA
3
Coil 2 B (output) 0 V or 3.3 V
100 mA
4
Drive – (output) 0–3.3 V 50 mA
4
Coil 1 B (output) 0 V or 3.3 V
100 mA
Table 23: Lens control port wiring
PIN 3
PIN 1
PIN 2
PIN 4
