optris PI 160 - PIN Allocation

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4.1.1 PIN allocation
Figure 17: Rear side of the camera
USB
PIF
1 VCC
1 INT
2 GND
2 SDA (I²C)
3 SCL (I²C)
4 D -
4 DGND
5 D +
5 3.3 V (Out)
Consider that the input of the PIF is not protected if there is a direct PIF connection!
A voltage > 3 V on the INT pin will destroy the device!