Dahua PFM811-C/DH-PFM811-4CH is a 4-channel PoC (Power over Coaxial) transmitter that allows for the transmission of video signals and power over a single coaxial cable. This eliminates the need for separate power cables, simplifying installation and reducing costs. The transmitter supports up to 15.6W of power per channel, making it suitable for powering most HDCVI cameras. Additionally, the transmitter supports OSD control, allowing for remote camera configuration and adjustment.
Dahua PFM811-C/DH-PFM811-4CH is a 4-channel PoC (Power over Coaxial) transmitter that allows for the transmission of video signals and power over a single coaxial cable. This eliminates the need for separate power cables, simplifying installation and reducing costs. The transmitter supports up to 15.6W of power per channel, making it suitable for powering most HDCVI cameras. Additionally, the transmitter supports OSD control, allowing for remote camera configuration and adjustment.
PoC Transmitter
User’s Manual
V1.0.2
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
Foreword II
Foreword
General
This document mainly introduces overview, port, installation and relevant technical
specifications of PoC (Power over Coaxial) transmitter.
Safety Instructions
The following categorized signal words with defined meaning might appear in the manual.
Signal Words
Meaning
DANGER
Indicates a high potential hazard which, if not avoided, will result
in death or serious injury.
WARNING
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or unpredictable
result.
TIPS
Provides methods to help you solve a problem or save you time.
NOTE
Provides additional information as the emphasis and supplement
to the text.
Revision History
Version
Revision Content
Release Time
V1.0.2
Updated the Manual according to the latest
template.
April 2019
V1.0.1
Storage platform supports XVR series HD
NVR.
August 2018
V1.0.0
First release.
August 2017
Privacy Protection Notice
As the device user or data controller, you might collect personal data of other such as face,
fingerprints, car plate number, Email address, phone number, GPS and so on. You need to be
in compliance with the local privacy protection laws and regulations to protect the legitimate
rights and interests of other people by implementing measures include but not limited to:
providing clear and visible identification to inform data subject the existence of surveillance
area and providing related contact.
Foreword III
About the Manual
The Manual is for reference only. If there is inconsistency between the manual and the
actual product, the actual product shall prevail.
We are not liable for any loss caused by the operations that do not comply with the manual.
The manual would be updated according to the latest laws and regulations of related
regions. For detailed information, see the paper manual, CD-ROM, QR code or our official
website. If there is inconsistency between paper manual and the electronic version, the
electronic version shall prevail.
All the designs and software are subject to change without prior written notice. The product
updates might cause some differences between the actual product and the manual. Please
contact the customer service for the latest program and supplementary documentation.
There still might be deviation in technical data, functions and operations description, or
errors in print. If there is any doubt or dispute, please refer to our final explanation.
Upgrade the reader software or try other mainstream reader software if the manual (in PDF
format) cannot be opened.
All trademarks, registered trademarks and the company names in the manual are the
properties of their respective owners.
Please visit our website, contact the supplier or customer service if there is any problem
occurred when using the device.
If there is any uncertainty or controversy, please refer to our final explanation.
Important Safeguards and Warnings IV
Important Safeguards and Warnings
The following description is the correct application method of the device. Please read the
manual carefully before use, in order to prevent danger and property loss. Strictly conform to
the manual during application and keep it properly after reading.
Operating Requirement
Do not place and install the device in an area exposed to direct sunlight or near heat
generating device.
Do not install the device in a humid, dusty or fuliginous area.
Do not drip or splash liquids onto the device; do not put on the device anything filled with
liquids, in order to prevent liquids from flowing into the device.
Use the device only within rated input and output range.
Do not dismantle the device arbitrarily.
Transport, use and store the device within allowed humidity and temperature range.
Auxiliary Material Requirement
Power adapter is not a standard configuration, so it shall be bought according to actual
conditions and used within labeled voltage scope.
Power of the power adapter shall be greater than total power of loaded camera; otherwise,
it may not start or may power down halfway.
Performance of RG59 and RG6 cables shall meet standard requirements. For example,
conductor resistance of RG59 cable is 3.6ohms/100m and braiding resistance is
1.35ohms/100m.
Table of Contents V
Table of Contents
Foreword ................................................................................................................................................... II
Important Safeguards and Warnings .................................................................................................... IV
1 Overview ................................................................................................................................................. 1
Introduction ................................................................................................................................... 1 1.1 Features ........................................................................................................................................ 1 1.2
2 Port Introduction ................................................................................................................................... 2
Transmitting End ........................................................................................................................... 2 2.1 Receiving End ............................................................................................................................... 2 2.2
3 Application Networking ........................................................................................................................ 4
Overview 1
1 Overview
Introduction 1.1
PoC (Power over Coaxial) transmitter connects HDCVI camera and storage device, such as
digital video recorder (DVR), and transmits video signal and power with one coaxial cable.
HDCVI camera does not need to connect an adapter to supply power.
Features 1.2
Support 400m RG59 transmission; support max. 15.6W HDCVI camera in single channel;
Support 400m OSD control;
Support DC12V–36V wide voltage power supply;
Support simultaneous power supply to max. 4 HDCVI cameras;
Support hot plugging.
Port Introduction 2
2 Port Introduction
Structural drawings are schematic diagrams, which are used to introduce functions of
cable ports.
Different devices may have different cable structures. For details, please refer to actual
products.
Transmitting End 2.1
PoC transmitting end is called PD end (PD: Power Device) for short, power receiving device in
coaxial power supply system. It receives power from PSE and supplies power to the camera,
while receiving and transmitting camera video to PSE receiving end.
Figure 2-1 PoC transmitting end (PD end)
Table 2-1 Port description
No.
Port
Description
1
BNC female
Connect PD end and PSE end.
2
BNC male
Connect HDCVI camera and PD end.
3
DC male
Output DC12V to HDCVI camera.
Receiving End
2.2
PoC receiving end is called PSE end (Power Sourcing Equipment) for short, power supply
device in coaxial power supply system. It provides power for PD end, and transmits video signal
from PD to storage device.
PD end shall be used with PSE end.
PSE end can be used with PD end or HDCVI with PoC function.
Figure 2-2 PoC receiving end (PSE end)
Port Introduction 3
Table 2-2 Port description
No.
Port Name
Functional Description
1
Power
indicator
light, PWR
When PWR indicator light is on, it means that PSE end is
power-on;
When PWR indicator light is off, it means that PSE end isn’t
power-on.
2
Load
identification
indicator
light L1–L4
When lights are normally on, it means that loads of corresponding
channels are lawful and power-on;
When they are off, it means that corresponding channels do not
have loads or non-PoC device is connected;
If lights flicker quickly (0.5 second/time) for 2 seconds and turn off,
it means that loads of corresponding channels are pulled out;
If lights flicker slowly (1 second/time) for 5 seconds and turn off, it
means that corresponding channels are subject to overcurrent or
short circuit.
3
Video signal
indicator
light V1–V4
If lights are on or flicker, it means that PoC of corresponding
channels has received video signal successfully;
If they are off, it means that corresponding channels haven’t
received video signal.
4
BNC female
POC1–POC 4, connect PSE end and PD end.
5
BNC female
DVR1–DVR 4, connect PSE end and storage device.
6
DC female
DC 12V–DC 36V power input.
3 Application Networking
Figure 3-1 PoC application networking
Operation Procedures
Connect all ports of PoC transmitter, as shown in Figure 3-1 PoC application Step 1 networking.
1) BNC female (POC1–POC4) of PSE end is connected to BNC female of PD end
with coaxial cable.
2) BNC female (DVR1–DVR4) of PSE end is connected to storage device.
3) BNC male and DC male of PD end is connected to HDCVI camera.
Connect DC female of PSE end to power adapter. Step 2 When power indicator light (PWR) of PSE end turns on, it means that PoC receiving
end is powered on successfully.
Power adapter is not a standard configuration, so it shall be bought according to actual
conditions.
Observe status of load identification indicator light. Step 3
Load identification indicator light L1–L4: if lights are normally on several seconds
after connecting PD device, it means that PoC transmitting end is identified
successfully and power on. If they do not turn on for a long time (over 10 seconds),
it means that the device connecting with PoC receiving end is not applicable.
Please check whether the camera is an applicable PD.
Video signal indicator light V1–V4: if they flicker or they are normally on, it means
that PoC receiving end has received video signal successfully. If they are off for a
long time, it means that PoC receiving end has not received video signal. Please
check the connection status of the camera.
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
Address: No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China
Postcode: 310053
Tel: +86-571-87688883
Fax: +86-571-87688815
Email: overseas@dahuatech.com
Website: www.dahuasecurity.com
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Dahua PFM811-C/DH-PFM811-4CH is a 4-channel PoC (Power over Coaxial) transmitter that allows for the transmission of video signals and power over a single coaxial cable. This eliminates the need for separate power cables, simplifying installation and reducing costs. The transmitter supports up to 15.6W of power per channel, making it suitable for powering most HDCVI cameras. Additionally, the transmitter supports OSD control, allowing for remote camera configuration and adjustment.
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