Pin Layout GPIO

Extra Voltage IN/GND for Electrically Isolated Circuit

All General Purpose Inputs (GPIs) and General Purpose Outputs (GPOs) of the GPIO socket are electrically isolated. The incoming signals are transferred to the frame grabber via optocoupler. This way, the frame grabber is securely protected against high incoming voltages.

However, to operate the internal GPI circuits, you need to connect a voltage source and ground: On pin B5, you apply the voltage (GPIO Socket IN) that serves as operating voltage for the internal operational amplifiers. On pin B4, you connect the according ground (GPIO Socket Voltage GND).

 

Attention

 

The LightBridge 2 ACL trigger system needs to get supply voltage on the GPIO Socket Voltage IN pin (pin B5). If you want to connect devices that have no PWR pin, you need to provide the power supply to the GPIO Socket Voltage IN pin (pin B5) from an external source.