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ACT Module Features
The ACT module features are described below:
•
Controlled by the RTU via an RS232 serial port using a simple instruction set.
•
Digitally records audio signals (alarm tones, voice announcements, etc).
•
Plays stored audio signal.
•
Interface to an external low-level audio signal source (microphone, radio audio out,
etc.).
•
Interface to input of one audio amplifier and up to two outputs of audio amplifiers.
•
Connects to up to six speakers.
•
Selective output to any combination of six speakers.
•
Routes the audio signals from the amplifier(s) output to selected speakers.
•
Routes data coming from the RTU to a serial printer to allow printing of information
by alternative use of the RTU serial port.
The ACT module block diagram is shown below:
Audio Control and Tone (ACT) Module
23-2
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