Does the DC24V control signal of the fire engine give a signal or a pulse?
The fire control equipment in the automatic fire alarm system, when receiving a fire alarm signal trigger device from the fire control center, can automatically or manually start the fire protection equipment and display devices of their state, known as the fire control equipment.
The signal from the fire engine to the local alarm device is a continuous DC24V signal.
Include fire alarm controller, automatic fire extinguishing system control device, control device of fire hydrant system, control device of smoke exhaust system and air conditioning ventilation system control device, normally open fire doors, fire shutter, lift down control equipment, and fire emergency radio, fire alarm, fire fighting equipment, fire emergency communication lighting evacuation signs and control device for ten types of control device in whole or in part. Fire control equipment normally installed in the fire control center, to facilitate the implementation of centralized control, while others set fire control equipment, fire fighting equipment in the plant site (such as fire control, elevator button) but the action must be returned fire control signal, the control mode of the combination of centralized and scattered.
