The Siemens 3RK2200-0CQ20-0AA3 is a compact AS-Interface (AS-i) module designed for digital input applications. This K45 model functions as an A/B slave and features four digital inputs, each capable of handling up to 200 mA. With an IP67 rating, it’s well-suited for use in environments where protection against dust and water is important. The module includes four M12 sockets for connection, though the mounting plate for these sockets is ordered separately. Distributed by BSP Automation, this device offers reliable performance for streamlined sensor integration in industrial automation setups.