NAJ2213 Fire-fighting Telephone Jack 

The fire fighting telephone system is the special communication equipment for fire fighting, pursuant to the national standard GB16806-2006 Fire Linkage Control System. This system is composed of the fire-fighting telephone host (hereinafter referred to as host), fire-fighting telephone extension (hereinafter referred to as extension) and fire-fighting telephone jack (hereinafter referred to as the jack), and is suitable for communication and dispatching in a fire or emergency in the building. In case of fire alarm in the application site, the site personnel can call the host through extension and contact the control center in time. The operator in the control center can also call the extension at the site through the host to know the situation on the site. In traditional fire management, some information is managed in the form of paper files. Not only is the data record not comprehensive enough, but also it is difficult to consult and manage because data management…