Trigger the self-test button to perform a function self-test on all indicators, displays and sound devices on the panel. Turn off the main power supply and check the status of the standby DC power supply and the status of the main and standby power supplies. Make any circuit, power supply or internal circuit of the controller in a fault state, observe the sound and light alarm signals of the controller and the location and type indication of the fault. During the fault alarm, the fire alarm is simulated. The controller should send a fire alarm signal within 1 min, and then other detectors will issue a fire alarm signal, and the controller can alarm again.
