Dahua DHI-NVD0905DH-4I-4K - Page 5

II
 The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and be no
higher than PS2. Note that the power supply requirements are subject to the device label.
 Connect class I electrical appliances to a power socket with protective earthing.
 When installing the device, make sure the power plug and appliance coupler are easy to reach
to cut off the power.