Microprocessor-controlled unit (often version 1.46) that triggers the sound.
46 or the for its use in a specific region? ZVUKOVГќ SIGNГЃL BRГЃNY 1.46
Weatherproof (IP66 or higher) speaker or pneumatic horn. 3. Operational Signaling Protocols Microprocessor-controlled unit (often version 1
Indicates that a mechanical sequence (opening or closing) has been initiated. ZVUKOVГќ SIGNГЃL BRГЃNY 1.46
The version "1.46" usually designates a specific hardware firmware or a regulatory sub-section defining the signal's acoustic properties.