There is a button on the surface of the fire hydrant button. When the fire hydrant is started in case of fire, you can directly press the button. At this point, the red start indicator of the fire hydrant button lights up and a yellow warning object pops up, indicating that an alarm message has been sent to the fire control room. After the fire alarm controller (commonly known as the alarm host) confirms that the fire pump has started running, it sends an instruction signal to the fire hydrant button and lights the green response indicator.

The connection modes of fire hydrant button with fire alarm controller (alarm host) and water pump control box can be divided into bus pumping mode and multi-line direct pumping mode. When the bus pumping mode is adopted, the fire hydrant button is directly connected with the second signal bus.

Extended data

Fire hydrant button has the following characteristics:

(1) adopts the structural design with separated base, which is simple and convenient to install;

(2) Electronic coding, which can be rewritten on site;

(3) The fire hydrant button can be reused. Press the alarm mode to reset it with a special key;

(4) Press the hydrant button, and the independent output contact provided by the hydrant button can directly control other external devices;

(5) The microprocessor is used to control the fire-fighting equipment, and the digital signal is used to communicate with the fire alarm controller (alarm host), which is stable and reliable and has good electromagnetic interference suppression ability;

(6) The microprocessor monitors the operation and gives diagnostic information.

Baidu Encyclopedia-Fire hydrant button