Plug-in speaker for emergency notification and voice evacuation
First Claim
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1. An alarm notification device comprising:
- a base with a plurality of wire receiving terminals and a plurality of unit engaging contacts, each terminal is coupled to a respective contact;
an alarm unit, the unit releasably engages the base and is electrically coupled to at least some of the terminals via the contacts when engaged;
the alarm unit is movable along an axis that intersects the base, the alarm unit includes at least an audible output transducer; and
said base carries a structure adjustable to a first orientation wherein said structure when in said first orientation short circuits a pair of terminals of said plurality of terminals to check system wiring, said structure is adjustable to a second orientation wherein in said second orientation said pair of terminals exhibits an open circuit with said structure, wherein the structure is in said second orientation responsive to the unit being removed from the base.
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Accused Products
Abstract
An alarm indicating output appliance can be releasably affixed to a mounting plate. The plate carries wire receiving terminals which couple to the appliance. In the absence of the appliance, at least two of the terminals can be short circuited.
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Citations
14 Claims
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1. An alarm notification device comprising:
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a base with a plurality of wire receiving terminals and a plurality of unit engaging contacts, each terminal is coupled to a respective contact; an alarm unit, the unit releasably engages the base and is electrically coupled to at least some of the terminals via the contacts when engaged;
the alarm unit is movable along an axis that intersects the base, the alarm unit includes at least an audible output transducer; andsaid base carries a structure adjustable to a first orientation wherein said structure when in said first orientation short circuits a pair of terminals of said plurality of terminals to check system wiring, said structure is adjustable to a second orientation wherein in said second orientation said pair of terminals exhibits an open circuit with said structure, wherein the structure is in said second orientation responsive to the unit being removed from the base. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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a substantially planar monitoring plate, the plate carrying a plurality of wire connectable terminals, two of the terminals carrying first and second shorting elements, the elements open circuit the terminals in response to an applied force; and a verbal and a visual output unit having a plurality of contacts, the unit engages the plate while moving in one of, a direction generally perpendicular to the plate, and, a direction generally parallel to the plate to electrically couple to at least some of the terminals via the contacts, and wherein engagement of the unit to the plate provides the force to open-circuit the terminals. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification