The Allen-Bradley 1756-OF8 is an analog output module from the ControlLogix product family
The Allen-Bradley 1746-NI16I is a SLC 500 Analog I/O Module. This Analog I/O Module has Sixteen (16) Inputs configurable for 0 to 20 mA, 4 to 20 mA, ±20 mA, and 0 to 1 mA. This module is a single-slot module.
New in Box A-B 1756-OF8 Serise A ControlLogix 8 Point Analog Output Module 1756-of8 Voltage/Current