Patent ID: 7920053

Claim:
A notification device comprising: an enclosure accepting a plurality of conductors that supply both a signal and electrical power; at least one strobe drive circuit configured to supply an electrical signal for periodically flashing at least one strobe; a strobe system in communication with said strobe drive circuit, said strobe system configured to flash said at least one strobe, such that said strobe system flashes one of at least two different colors; a controller in communication with at least one of said two conductors, wherein said controller is configured to determine which color of said at least two different colors to flash said at least one strobe based upon said signal received from at least one of said plurality of conductors; and an audible device configured to emit an audible noise based upon said signal received from at least one of said plurality of conductors, wherein said flashing of said at least one strobe and said audible noise emitted from said audible device are substantially synchronized when said signal received from at least one of said plurality of conductors is a different protocol than an operating protocol of said notification device.