The LI122UN room controller provides connections for six Tek-CARE160 stations and one connection for the Tek-CARE160 data bus. In most instances, the room controller is installed outside a room in the same position as a traditional dome light. The two-conductor cable is used to connect Tek-CARE160 stations to the LI122UN room controllers. The rear of the room controller contains a 14-pin header. Pins 1-12 are used in pairs for station connections and pins 13 and 14 are used to connect the room controller to the Tek-CARE160 data bus. The LI122UN annunciates high priority calls with red or blue LEDs and low priority calls with white LEDs. The LED colors can be changed on the room controller.