Enclosed Cameras

The GPO pins are open-collector current sink outputs.  The GPOs can handle a maximum of 15mA and 40V with respect to ground.  To use them with TTL inputs, the GPO output lines must be pulled high with a 1K ohm resistor.  

Example 1: TTL Output

The figure below shows the GPO outputs from the camera being used to output a TTL signal.


Example 2: Synchronizing multiple cameras

Here's another example whereby the GPO from one camera being used to trigger a second or more cameras.  See Tech Note 001 on camera synchronization using this connection method.