The difference between the multi line bus fire alarm system and fire alarm system

Automatic alarm system is divided into multi line control and bus control two kinds of fire, they are in different places to play an important role, what´s the difference?

Multi line control is an address code with a pair of wires, direct access to the fire alarm host. This way of point to point, one on one, disadvantage is the large amount of wiring, maintenance is not very convenient; advantages can be quickly available fault. Bus control is more multiple address code public a pair of wires, each of the line (or the line) can be used as a loop to access a host or controller, convenient construction, convenient control, material saving, loop in all position after on-line fault to find, but if the controller can´t read time address code check the fault can be difficult. Now the design and product most projects are bus system, multi line system has been eliminated.

There is also the difference between equipment line composed of fire alarm system and bus fire alarm system, multi line detectors are without non coding smoke address code, temperature, and the bus system in the detector are smoke and temperature can be coded. Generally speaking, the bus system fire system than the multi line system to some relatively advanced.