| 摘要 |
An egress detection system includes an indicator unit having at least three electroluminescent lamps in a linear arrangement and circuitry for sequentially illuminating the electroluminescent lamps on a repeated basis in order from one end of the linear arrangement to the other end of the linear arrangement. The indicator unit includes a plastic extruded panel containing a circuit board on which the electroluminescent lamps are mounted, and a lens covering the electroluminescent lamps and bonded to the panel. The panel includes an electrical connector which allows the panel to be removed from the electronic circuitry and replaced. The electronic circuitry is also provided to sequentially illuminate a group of electroluminescent lamps in one direction in response to a first sensed condition of relative danger and in another direction in response to a second sensed condition of relative danger.
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