Allen-Bradley 1769-OV16 is a discrete output module 

 Allen-Bradley 1771-OAN output module is an AC output module

Allen Bradley 1756-L72 Controller module for ControlLogix modular programmable automation controller (PAC)

Allen Bradley 1771-DB Communication Module

Allen Bradley 1756-L55M13 ControlLogix Processor Module

Allen Bradley 1791-24B8 DC powered block I/O module.

Allen Bradley 1746-OBP16  SLC 500 Digital DC Output Module.

Allen Bradley 1756-DMF30 ControlLogix drive module.

Allen Bradley 1756-LSC8XIB8I ControlLogix low-speed counter module.

Allen Bradley 1756-L55M24 ControlLogix Processor Module

Allen-Bradley 1762-OW8 output module is a solid-state type of industrial output module.

Allen Bradley 1746-IB32  ControlLogix discrete output module.