Allen-Bradley 1203-GK1 Communication Module Remote I

Allen-Bradley 1203-GK1 Remote I/O Communication Module provides a direct, digital SCANport link between an Allen-Bradley PLC and remote I/O devices, forming the communications bridge for older Remote I/O architectures. The module is identified by part number 1203-GK1 with firmware revision FRN 2.07 and is powered by 24 V DC, designed for installation in a remote I/O rack. As part of the 1203 Remote I/O family, it interoperates with companion modules such as 1203-GD1 and 1336-GM1, using the SCANport protocol to exchange data between the controller and field devices. This 1203-GK1 enables the controller to read and write data across a remote I/O network, supporting distributed automation setups where signals must be centralized or distributed across multiple cabinets. Typical applications include remote automation cells, conveyors, and other manufacturing lines where a central PLC needs coordinated I/O communication with equipment located in separate enclosures, without routing all signals through the main rack. The 1203-GK1 acts as a communication adapter within a Remote I/O rack, maintaining synchronization and data integrity for real-time I/O operations over the SCANport interface.