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White Paper of Power over Coaxial (PoC)

Chapter 2

PoC and Analog Surveillance

Wiring

PoC is a coaxial cable-based transmission technology of video, coaxitron and power supply. A PoC

DVR has a built-in PoC power module and operates by power supply of 48 VDC and 52 VDC with

DC current-based video signals. The technical barrier of PoC module is how to overlap DC current

and video signals without causing interference to video signals. The patented technology of

Hikvision effectively separates AC and DC current so that electricity and video signals are

transmitted harmoniously together on coaxial cables.

With the PoC technology, the wiring of analog surveillance becomes much easier and more

efficient while the cost is lower.

Below is a comparison of different wiring methods:

Traditional wiring: Both separate and centralized power supply require power and coaxial cable

connection to the cameras.

Figure 2-1

Traditional Wiring

PoC 1.0 wiring: The PoC unit is powered through power cables and is connected to cameras

through coaxial cables that transmit power and video signals. Then the video signals are

transmitted from the PoC unit to DVR through coaxial cables.