The Allen-Bradley 1794-OB16P FLEX I/O Digital DC Output Module is used to energize electrical components that operate in 24VDC categories, such as indicator lights/lamps, solenoid actuated devices, relay coils, etc. The module requires a user-provided terminal base for installation, to provide DIN rail attachment and I/O termination points. Compatible bases are the 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3K, and 1794-TB3SK. The OB16P is compatible with Ethernet, ControlNet, Remote I/O, and PROFIBUS FLEX I/O communication adapters.