06/29/17 ICA-202D OPERATION AND INSTALLATION MANUAL Page 5 of 32
ICA-202D Functional Diagram
Each channel has its own audio control section, which provides
Automatic Gain Control, Amplifier Muting, and other functions.
The ICA-202D is configured for Remote Station(s) to be a 25-Volt speaker.
The Operator has a separate microphone and speaker.
The Logic Control section provides for complete control of the audio functions.
A muting input is provided to mask station switchover noise.
Call, Privacy, and Paging Pre-announce Tones are included to simplify the
external systems design.
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