The C-Tec BF460A/CX/W is an addressable VAD beacon base, which is ideal for use with the Apollo protocol range of C-Tec XFP and ZFP fire alarm control panels.
 
The Base Mount range of addressable, loop-powered bases includes sounders, visual alarm devices (VADs) and combined sounder VADs. They are designed for use with C-TEC’s ZFP/XFP panels and other Apollo Discovery compatible fire panels. 
 
Their purpose is to visually and audibly alert building occupants of a fire alarm.