... &EN54 standard. Key words: Fire alarm Control Panel,conventional fire alarm control panel, fire alarm panel, fire alarm, ... - Earth Fault (on circuit board) - Battery Fault (on circuit board) - Charger Fault (on circuit board)Specifications:AC Power: AC220V±10% ... ServiceShenzhen Orena Photonic Technology Co., LtdOrena Bldg, Zhong'an Industrial Park, Longjing Road, Nanshan District, Shenzhen, 518055, ...