AW-D316 Conventional Sounder Beacon can give audible and visual alarms after being connected to a DC24V power supply. It can be used with a bus-type fire alarm control panel through an output module. After receiving a start command given by the fire alarm control panel following an accident, the output module will start the Sounder Beacon. After that, the Sounder Beacon will give a dazzling visual alarm signal and a harsh audible alarm signal to remind the persons on the scene of the accident of the fact that a fire has occurred on the site quickly and the necessity to take related evacuation measures, thus preventing the fire accident from becoming a major one.