RXL controller is an innovative range of room controllers and room units for cost-effective room management. Data communication is based on a proprietary DESIGO bus, which provides the transition to BACnet®. RXL controller thus fits into the overall expandable modular system, ensuring long-term cost-effectiveness. Commissioning and parameter setting of the RXL controllers are carried out with the software tool, or directly on the controller via the QAX34.3 room operating unit used as HandyTool. The parameters can be set via the room unit with no need for a network connection. These controllers also communicate with the Synco 700 controller.