Multiple way system fire detector address interface module

The utility model discloses a multiple way system fire detector address interface module, including the operating circuit, be connected with interface module on the operating circuit, interface module includes fire detector, be provided with the bus return circuit in the fire detector, be connected with the polarity circuit of adjusting on the bus return circuit, the polarity power switching circuit on the circuit that adjusts, be connected with the pulse code pick -up circuit on the power conversion circuit, the pulse code pick -up circuit reads circuit connection through the code has the singlechip, still be connected with crystal oscillator circuit and fire alarm signal sampling circuit on the singlechip. The beneficial effect of the utility model: through fire detector address interface module, can insert the work of bus return circuit to traditional multiple way system fire detector, when fire detector damage or interface module emergence line connecting failure, can transmit fault -signal for fire alarm