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Hanger holeHanger hole
Power: 12V DC,there is +/- for power
AC works normally when the circuit is closed and it is turned o when it is open.
Communication port for connecting converter.
Third party interface
Part info for the central controller
Power (12V, GND): 12V DC, please pay attention to +-of power.
Fire alarm linkage contact (ALARM1, ALARM2): AC works normally when the circuit is closed and
it is turned o when it is open. If the re alarm linkage is not required, short circuit the ALARM1 and
ALARM2. Third party interface (B1, A1): A1 should be connected to 485+ while B1 485-.
Communication port (B2, A2): It is used for connecting the converter, please pay attention to +-. A2
should be connected to 485+ while B2 485-.
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