L C D D i s p l a y O P D - 2 1 2 A / 2 1 5 A / 2 1 7 AChapter 2 Hardware Installation 2-32.2 Connecting PowerTo power on the LCD monitor, use the provided AC-DCadapter and the power cord to connect to the power outputsocket of the monitor. Fasten the connections securely.A ”Surge Protection” device plugged between the AC-DCadapter and the wall outlet is recommended to prevent theeffects of sudden current variations from reaching the LCDmonitor. The sudden peaks of electricity may harm the LCDmonitor.