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Part info for central controller
Power (12V, GND): 12V DC, please pay attention to +-of power.
Fire alarm linkage contact (ALARM1, ALARM2): AC works normally when closed and all AC turned off when open circuit.
B1, A1: Reserved
Communication port (B2, A2): It is used for connecting converter, please pay attention to +-. A2 should be connected to
485+ while B2 485-.
Fire alarm linkage contact
Power: 12V DC,
Communication port for
there is +- for power
connecting converter
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