Action Outputs - Voltages
I get strange Voltages when using a Multimeter The Action Outputs work by connecting the active to Ground when Action=1. Therefore, one pin will always equal the voltage on the Action Power Input, and the other will either float or be at ground.
If you have any load across the ports then you will get no current when Action=0, and the full Action Voltage across the pins when Action=1.
Maximum current output per Action port is 300mA.