This Evacuation controller is easy to operate and is designed around industry standard building emergency alert/evacuate requirements. When connected to a paging system amplifier, building occupants can be alerted and/or evacuated in the event of an emergency e.g.: fire, gas leak, bomb scare, earthquake. Auto or manual modes are selected by the front panel key switch which uses an industry standard 003 key. Alert & evac switches are fitted with safety covers to prevent accidental operation. Also inbuilt, is a Bell function tone for signalling lunch breaks, start of class etc. The Alert, Evacuation, Bell, Fire Test and Fire tones and Emergency Messages are all MP3 based and stored on a Micro SD card which is accessible from the rear of the unit. The Alert, Evacuation and bell tones and cancel function are triggered by the front switches when in manual mode or by the rear terminal contacts when in Auto mode for remote activation i.e. a clock, remote switch or remote wall plate. These functions can also be activated by optional wall plates and paging consoles. The Fire tone is activated from the rear Fire trigger or from the A 4597 remote plate. The Fire Test tone is activated by the A 4597 remote plate only. Provision has been made for a BGM (background music) source to be played through the controller. BGM is automatically muted when any other function is operated. A mic input is provided on the front panel and paging is also available through the A 4564 paging console. These can be used for either general or emergency paging and overrides all other functions. A pre-announcement chime is available on the microphone input. This can be switched on or off via external dip switches. Switched 24V Out connections are provided for all emergency and paging conditions. These contacts are for connection of override relays in remote volume controls, warning strobes, bells etc.