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Broadcast Switching Interface (GM717A)

Functional Features:


Applied to the G7 series fire alarm system, it is used for switching between normal broadcasting and fire broadcasting in the bus based fire broadcasting system. It is used to directly switch fire broadcasting zones or floors in the fire compartment through encoding. The fire broadcast line experiences a short circuit or open circuit, and the module sends a fault signal to the controller. The bus has no polarity.

Technical Parameter:


Working voltage: DC24V

Static current: ≤ 0.8mA

Starting current: ≤ 2.0mA

Dimensions: 85mm × 85mm × 36mm

Usage environment:


Temperature: -10 ℃~50 ℃

Humidity: ≤ 95% RH (40 ℃± 2 ℃)