DS-77xxNXI-I4/16P/4S NVR User Manual
UM DS-77xxNXI-I4/16P/4S 050619NA 10
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Need Help with This Product/Product Detail feature: inside.usa@hikvision.com
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Customer Service: csr.usa@hikvision.com
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Careers: hr.usa@hikvision.com
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Hikvision B2B Portal: b2b.usa@hikvision.com
Please provide: (i) your name (or nickname), your country or region of residence and your preferred method
of contact; and (ii) the details of your request or comment along with any corresponding Website links.
Mandatory Electrical Requirements
Hikvision requires the following conditions and equipment for all of its electronic equipment:
• Grounding
Ensure good conductivity for all ground paths; examine ground path contact surfaces for defects, dirt,
corrosion, or non-conductive coatings that may impede conductivity. Repair or clean contact surfaces
as necessary to assure good metal-to-metal contact. Ensure fasteners are properly installed and
tightened.
• Electrical Wiring
Ensure your outlets are properly wired. They can be checked with an electrical outlet tester.
• Surge Suppressor (Required)
Hikvision is not responsible for any damage to equipment caused by power spikes in the electrical
power grid. Use of a surge suppressor meeting the following specifications is mandatory for all
Hikvision electronic equipment:
˗ Specifications
> Listed by Underwriter’s Laboratories, meeting the UL 1449 Voltage Protection Rating (VPR)
> Minimum protection of 1,000 joules or higher
> Clamping voltage of 400 V or less