•       For broadcasts made by firemen in emergency situations.

•       For activation of emergency mode, start and stop automatic broadcasts of announcements, reset emergency signals and live microphone announcements .

•       CPU-switch for emergency broadcast to all zones even in case of a CPU error.

•       Up to 3 optional RM-320F extension units with an additional 20 function buttons per extension.

•       System software allows assigning of functions to the individual keys.