The Impera Tango serves as a controller for Biamp keypad controls and touch panels, providing easy control of all room functions. The Tango is equipped with three bi-directional RS-232 interfaces for sending commands to AV devices with feedback functionality. It is additionally equipped with 2 uni-directional RS-232 interfaces for sending commands to AV devices using serial or infrared communication. 8 GPIO are available for control of relays, switches and sensors. Impera Tango is a versatile AV control system for medium and large conference rooms.