HIKVISION D8T Series Manuale d'uso - Pagina 9

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When powered by PoC and connected to 12 VDC, if PoC is disconnected, the camera will turn

to 12 VDC power supply and will not restart.

3.3 Dual-power Supply

For a PoC camera, dual-power supply (self-supplied power and PoC DVR power) ensures that the

camera can be accessed during power exceptions. When the self-supplied 12 VDC power failed,

the camera will switch to PoC power supply (video signal may stop for a period of time); when PoC

power supply failed, the camera will switch to 12 VDC power.

With reference to PoE standards, Hikvision has introduced AT and AF mode for PoC to distinguish

the power level of PoC cameras: the max. operating power of AT and AF are 10 W and 6 W

respectively. These two modes are not related to IEEE 802.3 IP standard.

PoC Device

4-ch PoC device

8-ch PoC device

16-ch PoC device

16-ch PoC device is connected to 8 AT cameras through 8 random channels rather than fixed ones.

The access scenarios of a 16-ch PoC device are listed in the table below:

AT camera access

AF camera access

If the power of a DVR channel is not enough to support a PoC camera, the prompt of "Insufficient

Power For PoC" will be displayed in the live view window.

White Paper of Power over Coaxial (PoC)

Allowed AT/AF Camera Access

4 AT cameras

8 AT cameras

8 AT cameras + 8 AF cameras

Or up to 12 AT cameras

N (0 to 7)

16-N