The difference between multi line fire control and bus control
Multi line control of fire linkage is one to one, point to point control loop. Multi line control is controlled by the main control room for manual control! Usually not controlled by alarm systems, controlled by humans! (using relay, contactor)
That is, the device is connected in parallel to one of the buses. Using bus system, wiring is relatively simple. Under normal circumstances, if the number of fire linkage facilities is relatively large and centralized, the bus system is more economical and reasonable.
The bus is the automatic fire alarm system and fire linkage system signal transmission line be made one in the loop, i.e. both detector, manual alarm button, and a control module circuit ganged fire control facilities and receive the feedback signal of action.
