How to connect the fire smoke to the network alarm system?

Hello! The independent smoke sensor is powered by battery, and its working voltage is DC9V. This kind of smoke sensor has no terminal, and can work directly by installing the battery on the ceiling, so it is called "independent" smoke sensor. The networked smoke sensor is also powered by DC and generally has a working voltage range. For example, the working voltage of networked smoke sensor for armored satellite communication is DC9~28V, and it can work if it meets this range. Networking smoke sense is also called four-wire smoke sense, which has relays and can be linked with other equipment. For example, a networked smoke sensor is connected to a fire alarm. When the smoke concentration exceeds the standard during the fire, the internal relay of the networked smoke sensor will send out a control signal to start the alarm. The above is answered by "professional manufacturer of smoke sensation-real prestige", hope to adopt it!