Loop wiring is a bus system, so it can connect intelligent devices such as smoke sensor, module, temperature sensor and manual telegraph. On the loop line, connect the wires, code the equipment with an encoder, and record the coding number and location of the equipment.
For example: JB-3208 series of Songjiang fire alarm host, each controller can be configured with 72 full bus loops, and each loop can be configured with 252 points. The maximum capacity of this Songjiang fire alarm host is 18 144 minutes. Configuration of each full bus circuit: 252 points. All detection devices (including manual alarm button, fire hydrant button, water flow indicator module and other input modules) are coded by software.
Extended data
The main fire controller can automatically save the following six kinds of record data: operation record, fire alarm record, linkage record, supervision record, fault record, system change record and other historical record data, which will not be lost due to power failure.
The controller has the system self-test function: all function indicators, LCD screen, audio system and printer on the self-test panel. If the controller is equipped with ZY-4B gas fire extinguishing controller, the fire extinguishing controller can also be checked by sound and light prompt.
Baidu Encyclopedia-Songjiang Fire Alarm Host
Baidu encyclopedia-circuit board