Prosilica GT Technical Manual V2.4.1
67
Camera interfaces
Lens control
Prosilica GT standard and extended cameras
Isolated Out Power OUT ICC R LOAD
V LOAD R Power Dissipation T
1
T
2
T
3
T
4
5 V
0.8 mA
500 Ω
4.2 V
3.5 mW
1.2 μs
5.4 μs
5.6 μs
64 μs
5 V
1.7 mA
2.4 KΩ
4.0 V
6.7 mW
1.2 μs
5.4 μs
4.4 μs
34 μs
12 V
2.1 mA
5 KΩ
10.4 V
21.6 mW
1.2 μs
10 μs
4.0 μs
47 μs
24 V
1.8 mA
10 KΩ
18.4 V
33.9 mW
1.2 μs
15 μs
3.4 μs
70 μs
Table 23: Prosilica GT trigger circuit values
Prosilica GT standard and extended 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, shown left,
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 rel-
evant 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 55: 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 200 mA
2
Damp + (input)
N/A
N/A
2
Coil 2 A (output) 0 V or 3.3 V 200 mA
3
Drive + (output) 3.3 V
50 mA
3
Coil 2 B (output) 0 V or 3.3 V 200 mA
4
Drive – (output) 0–3.3 V 50 mA
4
Coil 1 B (output) 0 V or 3.3 V 200 mA
Table 24: Lens control port wiring
PIN 3
PIN 1
PIN 2
PIN 4