Can the E-opto16 dry contact expansion modules be configured for inputs and outputs and how much voltage can I apply to these? Does the opto? mean opto isolated?

AKCPsecurityProbe Series, Support

The E-opto16 dry contact expansion modules can only be used as inputs, just like the extra dry contact inputs on the secuirtyProbe8-X20. Yes, the opto? in the product name means these inputs come pre configured as opto isolated, meaning this provides protection to the module for over voltages and allows up to 50VDC to be applied to these inputs.

AKCPCan the E-opto16 dry contact expansion modules be configured for inputs and outputs and how much voltage can I apply to these? Does the opto? mean opto isolated?