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4
Hanger hole
Hanger hole
Power: 12V DC,there is +/- for power
AC works normally when the circuit is closed and it is turned off 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 off when it is open. If the fire 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-.