How does a conventional fire control panel system work?

If you want to get the answer about the above question quickly, you can watch the below video at first !

Then, let you can read the article about how does a fire control panel system work.
firstly, we should know what does a fire control panel system do ?
A fire control panel system also called fire alarm control panel (FACP), fire alarm control unit (FACU), or simply fire control panel system is the controlling component of a fire alarm system. ... The panel may also supply electrical energy to operate any associated initiating device, notification appliance, control, transmitter, or relay.

Next, we should know about how is a fire control panel system wired?
The fire control panel system is wired to a minimum of two sounder circuits which could contain fire alarm bells, electronic sounders （siren alarm，strobe alarm）or other audible devices. It is these devices which sound the alarm when triggered. ... The detection circuit is wired as a loop and up to 25 devices may be connected to each loop. Such as our SR-P01 series （please click fire control panel system to get more info）

Okay, now let’s take a brief look at how does a conventional fire control panel system work ？
Conventional panels represent a building as a series of regions known as detection zones. When a smoke detector or pull switch in a zone activates, the electrical current to the fire control panel system changes, and the control panel indicates that a device somewhere in that zone has been activated

The words is relatively simple, it may be difficult to explain, I suggest you watch the above video directly. thank you ！