... latest UL864&EN54 standard. Key words: Fire alarm Control Panel,conventional fire alarm control panel, fire alarm panel, fire alarm, FACP, ... , fire-fighting, fire panel, fire alarm controller, fire alarm control unitFeatures1) 4/8/16 Style B (Class B) Initiating Device ... batteries only, Maximum charging circuit: 27.6VDC @ 0.8 amp for normal flat charge, Maximum battery charger capacity: 18AH battery ...