The principle of automatic opening of fire hydrant button
Fire hydrant button is equivalent to an alarm interface, with address code, fire control can be displayed on the host;
Fire hydrant button has 1 lines directly connected to the fire hydrant pump, press the button, the signal back to the fire control console, and start the fire hydrant pump.
13 years after the implementation of the new police regulations, the fire hydrant alarm button is not directly connected to the pump line, only the signal bus, press the alarm button, the alarm host through the field control module to pump
You said before the specification, then pump start line has new requirements according to the fire hydrant button is not required, I said before then, the working principle is the fire hydrant button will take two lines, one line signal line, the line closed after the button is pressed, the alarm signal to the alarm host feedback. One line is the starting pump line, and the pump is pumped directly.
