The module is a digital output module that is equipped with 4 opto-triac outputs using phase-angle control. L and N are fed to the module for zero-crossing detection.
Rockwell Allen Bradley 2080-LC30-24QWB Micro 830 System with Base Unit and Plug-in Options, (14) Inputs 24V DC/AC, (10) Digital Relay Outputs, 24V DC Power