HIKVISION DS-7208HQHI-K2 User Manual - Page 9
Browse online or download pdf User Manual for Network Hardware HIKVISION DS-7208HQHI-K2. HIKVISION DS-7208HQHI-K2 17 pages. Power over coaxial
Print Page
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.
3.4 AT/AF Mode
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.
3.5 PoC Access Capability
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
3.6 Insufficient PoC Power
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
12
11
0
2
8
10
9
8
4
6
8
N (0 to 7)
16-N