HSY-1616 is a system control panel capable of controlling all inputs and outputs in a 16x16 or smaller matrix. The panel is capable of operating in several modes. It can operate in a Follow mode, meaning that the same input for all levels will change when a switch is made. It can also operate in a Breakaway mode, where only the selected input levels will change, or a Split mode where the levels can be individually set. Additionally, any input level can be Locked, preventing it from switching in any mode.