Allen-Bradley 102112R05 Signal Isolator Board

The Allen-Bradley 102112R05 Signal Isolator Board is a chassis-mounted printed circuit board that provides electrical galvanic isolation and signal conditioning for analog and digital signals between field devices and control equipment in Allen-Bradley automation systems. Board number 102112 with revision R05 and model/part number 102109 is designed to protect sensitive electronics from electrical noise, ground loops, and voltage transients while ensuring reliable signal transmission. The isolation method is electrical/galvanic, and the board supports analog and/or digital signals depending on the application. It uses a multi-layer PCB construction and interfaces via edge connectors and multi-pin connectors, compatible with Allen-Bradley Industrial Control Systems and Drives. Operating voltage and range are application dependent, and the unit is intended for industrial-temperature environments. Common applications include motor drives, PLC systems, manufacturing equipment, and process control where preserving signal integrity and isolating interfaces are critical. Availability notes indicate the product is offered in new, used, refurbished, and surplus inventory.