Definition of annunciator in English English dictionary
A buzzer in a UK signal box, that sounds when a train activates a treadle positioned on the track. Provides a warning or announcement of a nearby train
A visual display that uses pilot lights to indicate the former or existing condition of several items in a system
Visual and/or audible device to indicate the condition, normal or alarm, of an associated actuating device circuit or system It can use lights, bells, gongs, or printed record it is labeled to identify the location and/or condition
An annunciator (AN) is an audible intercept device that states the condition or restrictions associated with circuits or procedures
is equipment which indicates the zone or area of a building from which an alarm has been initiated or the location of an alarm-initiating device and the operational condition of the alarm circuits of the system