Patent ID: 8013755

Claim:
A method of selectively emitting either a strobing white light signaling a fire alarm or a strobing amber light signaling a mass notification, said method comprising: receiving a control signal over a two-wire fire system powerline; decoding the received control signal; selecting one of a fire system strobe and a mass notification strobe based upon the decoded control signal; if the fire system strobe is selected, and the decoded control signal is a strobe ON command, activating the fire system strobe to emit strobing white light; if the fire system strobe is selected, and the decoded control signal is a strobe OFF command, deactivating the fire system strobe; if the mass notification strobe is selected, and the decoded control signal is a strobe ON command, simultaneously activating at least two light emitters positioned in an optical chamber having a highly reflective surface, wherein the activated light emitters each emit a different color of light such that strobing light outputted from the activated light emitters mixes within the optical chamber to produce strobing mixed light having the amber mass notification color, said amber mass notification color being different from the color of light emitted by each of the activated light emitters; and if the mass notification strobe is selected, and the decoded control signal is a strobe OFF command simultaneously deactivating the activated light emitters.