SK-RCU19S is a newly developed dimming-type Room Control Unit （RCU）host by our company, designed to accommodate a wider range of guest room lighting scenarios and effectively manage changes in light brightness and color temperature. The unit connects to external networks via 100M TCP, enabling integration with our cloud server platform for remote control, status synchronization, upgrades, configuration, and debugging. Using an RS485 bus, it facilitates communication within the room to coordinate the orderly operation of various devices. With supporting host computer software, room number and network settings can be configured conveniently and efficiently.