HIKVISION DS7216HQHI-P, DS-7208HQHI-K2, DS-7204HQHI-P, DS-7204HUHI-P, DS-7204HUHI-K1 User Manual
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User Manual of Storage Prod and Solution
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PoC (Power over Coaxial)
White Paper
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User Manual
COPYRIGHT © 2018 Hangzhou Hikvision Digital Technology Co., Ltd.
ALL RIGHTS RESERVED.
Any and all information, including, among others, wordings, pictures, graphs are the properties of
Hangzhou Hikvision Digital Technology Co., Ltd. or its subsidiaries (hereinafter referred to be
“Hikvision”). This user manual (hereinafter referred to be “the Manual”) cannot be reproduced,
changed, translated, or distributed, partially or wholly, by any means, without the prior written
permission of Hikvision. Unless otherwise stipulated, Hikvision does not make any warranties,
guarantees or representations, express or implied, regarding to the Manual.
About this Manual
This Manual is applicable to PoC products.
The Manual includes instructions for using and managing the product. Pictures, charts, images and
all other information hereinafter are for description and explanation only. The information
contained in the Manual is subject to change, without notice, due to firmware updates or other
reasons. Please find the latest version in the company website (http://overseas.hikvision.com/en/).
Please use this user manual under the guidance of professionals.
Trademarks Acknowledgement
and other Hikvision’s trademarks and logos are the properties of Hikvision in various
jurisdictions. Other trademarks and logos mentioned below are the properties of their respective
owners.
Legal Disclaimer
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE PRODUCT DESCRIBED, WITH ITS
HARDWARE, SOFTWARE AND FIRMWARE, IS PROVIDED “AS IS”, WITH ALL FAULTS AND ERRORS,
AND HIKVISION MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT
LIMITATION, MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE,
AND NON-INFRINGEMENT OF THIRD PARTY. IN NO EVENT WILL HIKVISION, ITS DIRECTORS,
OFFICERS, EMPLOYEES, OR AGENTS BE LIABLE TO YOU FOR ANY SPECIAL, CONSEQUENTIAL,
INCIDENTAL, OR INDIRECT DAMAGES, INCLUDING, AMONG OTHERS, DAMAGES FOR LOSS OF
BUSINESS PROFITS, BUSINESS INTERRUPTION, OR LOSS OF DATA OR DOCUMENTATION, IN
CONNECTION WITH THE USE OF THIS PRODUCT, EVEN IF HIKVISION HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
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REGARDING TO THE PRODUCT WITH INTERNET ACCESS, THE USE OF PRODUCT SHALL BE WHOLLY
AT YOUR OWN RISKS. HIKVISION SHALL NOT TAKE ANY RESPONSIBILITIES FOR ABNORMAL
OPERATION, PRIVACY LEAKAGE OR OTHER DAMAGES RESULTING FROM CYBER ATTACK, HACKER
ATTACK, VIRUS INSPECTION, OR OTHER INTERNET SECURITY RISKS; HOWEVER, HIKVISION WILL
PROVIDE TIMELY TECHNICAL SUPPORT IF REQUIRED.
SURVEILLANCE LAWS VARY BY JURISDICTION. PLEASE CHECK ALL RELEVANT LAWS IN YOUR
JURISDICTION BEFORE USING THIS PRODUCT IN ORDER TO ENSURE THAT YOUR USE CONFORMS
THE APPLICABLE LAW. HIKVISION SHALL NOT BE LIABLE IN THE EVENT THAT THIS PRODUCT IS USED
WITH ILLEGITIMATE PURPOSES.
IN THE EVENT OF ANY CONFLICTS BETWEEN THIS MANUAL AND THE APPLICABLE LAW, THE LATER
PREVAILS.
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Contents
CHAPTER 1 OVERVIEW ....................................................................................................... 4
CHAPTER 2 POC AND ANALOG SURVEILLANCE WIRING ....................................................... 5
CHAPTER 3 THE BASICS OF POC .......................................................................................... 7
3.1 CAMERA CONNECTION ............................................................................................................ 7
3.2 CAMERA POWER SUPPLY SCENARIOS ......................................................................................... 7
3.3 DUAL-POWER SUPPLY ............................................................................................................. 8
3.4 AT/AF MODE ....................................................................................................................... 8
3.5 POC ACCESS CAPABILITY ......................................................................................................... 8
3.6 INSUFFICIENT POC POWER ...................................................................................................... 8
3.7 CAMERA ACCESS TIME ............................................................................................................ 9
CHAPTER 4 POC CONNECTION AND TRANSMISSION DISTANCE .......................................... 10
4.1 CONNECTION METHOD ......................................................................................................... 10
4.2 TRANSMISSION DISTANCE ...................................................................................................... 10
4.3 EXTEND TRANSMISSION DISTANCE .......................................................................................... 10
CHAPTER 5 POC DEVICE MODEL ....................................................................................... 11
5.1.1 DVR .......................................................................................................................... 11
5.1.2 Camera .................................................................................................................... 11
5.1.3 PTZ Dome ................................................................................................................ 11
CHAPTER 6 GUI, EXCEPTION AND LOG OF POC DVR ........................................................... 12
6.1 POC INFORMATION .............................................................................................................. 12
6.2 POC MODULE EXCEPTION ..................................................................................................... 12
6.3 LOG ................................................................................................................................... 13
CHAPTER 7 POC SAFETY FEATURES ................................................................................... 15
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Chapter 1 Overview
From 2017, Hikvision released Turbo 4.0 DVR products. It is a big technical improvement from
previous ones and the function of PoC (Power Over Coaxial) is a highlight. In this white paper, the
theory of PoC, as well as its application and possible exceptions, will be explained.
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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.
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