This part number corresponds to a Murr Elektronik 7000-12181-6330500 Compact Switching Hub. The hub is designed for mounting on a DIN rail in both the vertical and horizontal directions and is equipped with I/O ports for connection to remote field devices. It features a 24V DC power supply, 8 digital inputs and 4 digital outputs, and supports a variety of communication protocols such as Modbus RTU, Modbus TCP, and Profibus. The switch is configurable using a web-based configuration tool and can be integrated with other field devices to enable control, monitoring and automation.