General The Honeywell INTEVIO Public Address (PA) system is the ideal solution for single buildings. Its integrated design provides better stability and cost savings, along with an enhanced user experience for improved performance. Description The RK-ZONE24 is a zone expansion device controlled by the Master Correct Unit, which adds 24 speaker zones and 24 contact inputs to the INTEVIO system. The RK-ZONE24 can connect with up to 6 external power amplifiers and 1 backup amplifier. The RK-ZONE24 supports only single channel mode. Functions Input/output There are 24 dry contact inputs and a single line input is provided to connect with an external audio source. The RK-ZONE24 has 24 zones of 70V speaker outputs, which can connect up to 24 speaker circuits. An individual 24 VDC output is provided to power an external device. Automatic fault diagnosis The RK-ZONE24 has an automatic fault diagnosis function to supervise various types of faults, such as main power, backup power, CPU, power amplifier, speaker circuits, communication line, etc. Fault information is displayed on the LED indicators located on the front panel.Device operation (All Calls) even if the MCU is unavailable The external audio source connected to the line input can still be broadcast to all local zones if the controller CPU malfunctions or is unavailable. This feature can reduce system downtime due to CPU failure, and allow safety alert broadcasting during an emergency.