Founded in Hong Kong in 1989, Paco Communication Equipment Co., Ltd. (PSI) is an innovative and active building intelligence system operator; it includes security equipment, digital television, CABD/SMART, energy management, intelligent building management, lighting and management systems, Electric Vehicle charging station and so on. Headquartered in Hong Kong, branches in Singapore, the Philippines, Indonesia, Taiwan and China to meet the needs of new technologies.


栢衛通訊器材有限公司（ＰＳＩ）于１９８９年 在香港成立，是創新及積極的大廈智能系統營辦商；包括﹑安防設備﹑數碼電視﹑公共天線﹑能源管理﹑智能大廈管理﹑照明及管理系統﹑電動車充電站等等。總部設於香港，分公司在新加波﹑菲律賓﹑印尼﹑台灣及中國，以迎合新技術的需求。