1.       Alarm Zone: The fire alarm areas aredivided into smaller section or unit according the alarm range or the buildingfloor, and the smaller section is called alarm zone. 2.       Detection Zone: The section being divided accordingthe exact detection places. 3.       Monitorin...

The code here refers to the preparation of theaddress code. As we know, in a fire system, each detector, sound & lightalarm, manual alarm are corresponding to a point, and the addressable detector wouldgive a code to every point trough the address code encoder, different codescorresponding to different monitoring areas, thus, when fires happen, the firealarm panel would r...

Switchingsignal also could be called digital signal. As we know, the direction and thequantity of the analog signal would be changing continuously by time going,while the changing of switching signal is not continuous, but abrupt change, so it’s also called pulse signal.Comparing with the analog signal, it has the characteristics of stronger anti-interferenceability, and is w...