1.2 Function .........................................................................................................................................1
1.3 Features .........................................................................................................................................2
5.12 Log out .......................................................................................................................................127
5.13 Un-install Web Control .............................................................................................................128
6 Digital Surveillance System ............................................................................................................129
8 Appendix A HDD Capacity Calculation .........................................................................................135
9 Appendix B Toxic or Hazardous Materials or Elements .............................................................136
vi
Welcome
Thank you for purchasing our mobile digital video recorder!
This user’s manual is designed to be a reference tool for your system.
Please open the accessory bag to check the items one by one in accordance with the list below.
Contact your local retailer ASAP if something is missing or damaged in the bag.
vii
Important Safeguards and Warnings
1.Electrical safety
All installation and operation here should conform to your local electrical safety codes.
We assume no liability or responsibility for all the fires or electrical shock caused by improper
handling or installation.
2.Transportation security
Heavy stress, violent vibration or water splash are not allowed during transportation, storage and
installation.
3.Installation
Keep upwards. Handle with care.
Do not apply power to the DVR before completing installation.
Do not place objects on the DVR
4.Qualified engineers needed
All the examination and repair work should be done by the qualified service engineers.
We are not liable for any problems caused by unauthorized modifications or attempted repair.
5.Environment
The DVR should be installed in a cool, dry place away from direct sunlight, inflammable, explosive
substances and etc.
This series product shall be transported, storage and used in the specified environments.
6. Accessories
Be sure to use all the accessories recommended by manufacturer.
Before installation, please open the package and check all the components are included.
Contact your local retailer ASAP if something is broken in your package.
Before your operation please read the following instructions carefully.
Installation environment
Keep away from extreme hot places and sources;
Avoid direct sunlight;
Keep away from extreme humid places;
Avoid violent vibration;
Do not put other devices on the top of the DVR;
Be installed in well ventilated place; do not block the vent.
Accessories
Always use accessories recommend by the manufacturer.
1
1 Features and Specifications
1.1 Overview
This series mobile DVR is a series mobile DVR based on our latest platform.
It integrates video process, wireless network technology, GPS technology, structure
technology, and vehicle information sampling and process technology together.
It adopts solid aluminium alloy case and has built-in 2.5-inch HDD as the storage media.
Support built-in 3G/WIFI wireless transmission module and GPS module.
It can be used on the vehicle to realize local audio/video storage and vehicle information
sampling. It can send out real-time video and vehicle information to the remote
management centre via the WAN to build up a wireless surveillance management
system.
This series product can be widely used in various areas such as public transportation,
long-distance bus, public security patrol, public security, logistics transportation and etc. It can
also be sued in many environments which has high requirement for the video monitor.
Important
Please note, GPS, WIFI, 3G function are optional. Please make sure you purchased product
support these functions.
1.2 Function
Slight difference may be found due to different series products.
Storage function
Special data format to guarantee data security and can avoid vicious data modification.
Compression format
Support multiple-channel audio and video signal. An independent hardware decodes the audio
and video signal from each channel to maintain video and audio synchronization.
Backup function
Support backup operation via USB port (such as flash disk, portable HDD)
Client-end user can download the DVR file to local HDD to backup via network.
Record playback function
Support each channel real-time record independently, and at the same time it can support forward
play, network monitor, record search, download and etc.
Support various playback modes: slow play, fast play, backward play and frame by frame play.
Support time title overlay so that you can view event accurate occurred time
Support specified zone enlargement.
Network operation
Support network remote real-time monitor, remote record search and remote PTZ control.
Alarm activation function
2
Several-channel relay on-off signal alarm output, easily to realize alarm trigger action and on-site
light control.
The alarm input port and output port has the protection circuit to guarantee device safety.
Communication port
RS485 port to realize alarm input and PTZ control.
RS232 port to connect to peripheral devices such as keyboard, COM port, matrix control and etc.
Standard 100Mbps Ethernet port can realize network access function.
PTZ control
Support PTZ decoder via the RS485 communication.
Support various decode protocols to realize PTZ and PTZ dome camera control function.
Intelligent operation
Mouse operation function
In the menu, support copy and paste setup function
GPS positioning
The GSP information can activate the record function while the search function can activate the
vehicle movement track.
Please note only the unit of GPS module supports this function.
3G network
Latest wireless network communication technology allows you to easily control the device.
Please note only the unit of 3G module supports this function.
Removable HDD design
The professional removable anti-vibration design supports fix and removable operation and can
connect to PC USB port to realize fast and convenience data backup.
Dual–stream
Considering the wireless network band is small and the network is not stable, system adopts the
dual stream to implement real-time record and network transmission independently, which greatly
optimizes the network transmission encode code and enhance the wireless network control
compatibility.
Vehicle status record
There are seven external alarm output ports. You can connect to the door signal, direction
indicator lamp signal, reversing light signal, stop lamp signal and etc to prompt the driver and
record vehicle status.
1.3 Features
Mobile vehicle power
Professional wide power supplying design (6-36V) for vehicle use. It is suitable for various
voltages. It has overload protection, under voltage protection, short circuit protection and overflow
3
Parameter
4-ch Series
System
Main
Processor
High-performance industrial embedded micro controller
OS
Embedded LINUX
System
Resources
Multiplex operations: Multiple-channel record, multiple-channel playback
and network operation simultaneously
Interface
User-friendly graphical user interface
Input
Devices
Mouse, remote control
Input
Method
Arabic number, English character, donation and extension Chinese
(optional)
Shortcut
Function
Copy/paste operation, USB mouse right-key shortcut menu, double click
USB mouse to switch screen.
Compression
Standard
Video
Compressio
n
H.264
Audio
Compressio
n
G711A,G711U , PCM
Video monitor
Video Input
4-CH composite video input: (NTSC/PAL) BNC (1.0VB
P- P,
B75Ω)
Video
Output
1-ch PAL/NTSC, aviation port (1.0VP- P, 75Ω) composite video signal
output.
1-ch VGA output.
Support TV/VGA video output at the same time.
Video
Standard
Support PAL/NTSC.
Record
Speed
Real-time Mode: PAL 1f/s to 25f/s per channel and NTSC 1f/s to 30f/s per
channel
Video
Partition
1/4 windows
protection.
High anti-vibration design
The unique HDD box adopts built-in anti-vibration design. It adopts the mechanical anti-vibration,
electronic anti-vibration and patent software anti-vibration together to realize the multiple-level
anti-vibration mechanism.
Non-fan design
The non-fan design realizes quiet environment, free from dust and water and at the same time, it
achieves the low power consumption and sound ventilation. This design meets the contemporary
high-end electronic device development tendency.
Slight function differences may be found due to different series.
1.4 Specifications
4
Monitor
Touring
Support monitor tour functions such as alarm, motion detection, and
schedule auto control.
1 to 120 minutes single record duration (Default setup is 60 minutes)
Playback
Repeat Way
When hard disk is full, system can overwrite previous video file.
Record
Search
Various search engines such as time, type and channel.
5
Playback
Mode
Various fast play, slow play speeds, manual frame by frame playback and
reverse play mode.
Various File
Switch
Ways
Can switch to previous or next file or any file in current play list.
Can switch to file on other channel of the same time. (If there is a file)
Support file continuous play, when a file is end system auto plays the next
file in the current channel
Multi-chann
el Playback
There is 1/4channel playback mode.
Window
Zoom
Switch between self-adaptive screen/full screen when playback
Partial
Enlargemen
t
When in one-window full-screen playback mode, you can select any zone
to activate partial enlargement function.
Backup
function
Backup
Mode
HDD backup
Support peripheral USB backup device. (Flash drive)
Support network download and save
Network
Function
Network
control
View monitor channel remotely.
DVR configuration through client-end and web browser
Upgrade via client or browser to realize remote maintenance.
View alarm information such as external alarm, motion detection and
video loss via client.
File download backup and playback
Multiple devices share information via corresponding software such as
professional surveillance software (PSS)
Duplex transparent COM
Network alarm input and output
Bidirectional audio.
Motion
Detection and
Alarm
Motion
Detection
Zone setup: support 396((PAL 22×18, NTSC 22×15)) detection zones.
Various sensitivity levels.
Alarm can activate record or external alarm or screen message prompt.
Video Loss
Alarm can activate external alarm or screen message prompt.
External
Alarm
Support record activation function or activate external alarm or screen
message in specified period.
Manual
Alarm
Control
Enable or disable alarm input channel
Support analog alarm signal to specific alarm output channel.
Alarm Input
7-ch alarm input(You can set normal open or normal close type to select
the alarm type. )
Alarm
Output
2-channel relay output.
Interface
USB
Interface
2 USB 2.0 ports.
One is at the front panel and the other is at the extension cable of the rear
panel.
Network
connection
RJ45 10M/100M/1000M self-adaptable Ethernet port
6
RS485
PTZ control port
Support various PTZ control protocols.
RS232
Ordinary COM (Debug),keyboard connection and transparent serial
port(COM input and output via network )
Extension
Function
3G
Built-in 3G module(EVDO,WCDMA). Support SMS online/offline activation.
Audio online/offline activation. Front panel SIM card design and HDD lock
protection. Optional 3G module.
GPS
Built-in GPS/Baidou/GLONASS module. Support satellite positioning.
Optional positioning system.
G-Sensor
Built-in G-sensor module to detect acceleration speed at XYZ all
directions.
Power
Outage
Protection
Built-in UPS support 5 seconds.
0-channel
encode
Work with DSS platform to get the video from the 0-channel (4-window).
System
Information
Hard Disk
Information
Display HDD current status
Data
Stream
Statistics
Data stream statistics for each channel (in wave mode)
Log
statistics
Backup to 1024 log files.
Support various search engines such as time and type.
Version
Display version information: channel amount, alarm input and output
amount, system version and release date.
On-line user
Display current on-line user
User
Management
User
Manageme
nt
Multi-lever user management; various management modes
Integrated management for local user, serial port user and network user.
Configurable user power.
Support user /group and its corresponding rights modification.
No limit to the user or group amount.
Password
Authenticati
on
Password modification
Administrator can modify other user’s password.
Account lock strategy
Five times login failure in thirty minutes may result in account lock.
Upgrade
Web browser, client-end and update tool.
Login, Logout and Shutdown
Password login protection to guarantee safety
User-friendly interface when login. Provide the following options: Logout
/shutdown/ restart.
Right authentication when shut down to make sure only those proper
people can turn off DVR
Power
DC 12V/24V DC built-in power supplying. Built-in UPS.
7
General
Parameter
Power
Consumptio
n
≤15W (Exclude HDD/camera)
Working
Temperatur
e
-10℃~60℃
Working
Humidity
10%-90%
Air Pressure
86kpa-106kpa
Dimension
1DIN standard industrial case.
Front panel: 190*210*60.
Rear panel: 180*210*50
Weight
≤2.1Kg(Exclude HDD)
Installation
Mode
Desktop installation
8
SN
Name
Port name and indicator light
1
USB port
USB port. To connect to mouse, or flash disk to backup data.
2
RJ45 network port
Network port.
3
Power indicator light
The red light is on when the device is running.
4
HDD indicator light
The blue light is on when there is HDD. The light is off when
there is no HDD.
5
Alarm indicator light
There is an alarm when the blue light is on.
6~9
Record indicator light 1~4
The blue light is on when system is recording.
10
Backup indicator light
The blue light is flashing when system is backup.
The blue light is on when the backup is finish.
The light is off when the backup error occurs or the flash
disk is removed.
11
GPS indicator light
Please note only the unit
of GPS module supports
this function.
The blue light is on when GPS function is normal.
12
3G indicator light
Please note only the unit
of 3G module supports
this function.
The blue light is on when 3G function is normal.
13
WIFI indicator light
Please note only the unit
The blue light is on when WIFI function is normal.
2 Front Panel and Rear Panel
2.1 Front Panel
The front panel is shown as in Figure 2-1.
Figure 2-1
Please refer to the following sheet for detailed information.
9
SN
Name
Port name and indicator light
of WIFI function supports
this function.
14
Remote control receiver
It is to receive the signal from the remote control.
15
Device lock/unlock (on/off
button)
Please unlock the device before you remove the HDD
box. Otherwise system is going to shut down
automatically.
System can not boot up once the button is unlock.
Please lock the device first and the boot up the device. It
is to save the HDD.
SN
Name
Function
1
3G1 antenna port
Please note only the unit of 3G module
supports this function.
3G antenna port
2
WIFI antenna port
Please note only the unit of WIFI module
supports this function.
WIFI antenna port
3
3G2 antenna port
Please note only the unit of dual-3G
module supports this function.
The second 3G antenna port.(It
is for duak-3G mode only).
4
GPS port
Please note only the unit of GPS module
supports this function.
GPS port
2.2 Rear Panel
2.2.1 Rea Panel
The rear panel is shown as in Figure 2-2.
Please refer to the following sheet for front panel button information.
Figure 2-2
10
5
Device power input.
Device power input port.
6
SD card slot
SD card slot
7
Extension port
Extension port. Please refer to
Figure 2-3 for detailed
information.
8
Alarm input/output port
Alarm input/output port, GND
port, and 12V output. Please
refer to chapter 3.7 for detailed
information.
9
RS485 and CAN BUS port.
RS485 communication port. It
can control PTZ.
Reserved port. For data
exchange between vehicles
CAN network and other devices
of CAN port.
10
Audio input and output port.
Bidirectional input and output
port. Please refer to Figure 2-4
for detailed information.
11
VGA port
VGA port It includes all kinds of
VGA signal port. Please refer to
Figure 2-5 for detailed
information.
SN
Function
+5
+5V Output (The bottom line)
+5
USB 5V (The top line)
2.2.2 Extension Port
This series has the built-in power; you do not need the mobile power supply sourcing.
The following contents are to introduce function of each port. You can make connection
cable by yourself or you can contact your local retailer to purchase.
The extension port1 is shown as in Figure 2-3.
Figure 2-3
Please refer to the following sheet for detailed information.
11
SN
Function
IR
IR receiver port
-
USB data
+12
+12V output
+
USB data+
VO
AV video output
GND
RX
RS232 RX
TX
RS232 TX
SN
Function
+12
+12V output
GND
Mic In
Mic Out
SPK+
Speak positive
SPK-
Speak negative
2.2.3 Bidirectional talk port
The following contents are to introduce function of each port. You can make connection
cable by yourself or you can contact your local retailer to purchase.
The bidirectional talk port is shown as in Figure 2-4.
Figure 2-4
Please refer to the following sheet for detailed information.
2.2.4 VGA
VGA Port
12
SN
Function
1
GND
2
+12V output
3
RXD_232
4
TXD_232
5
VGA signal Green
6
VGA signal Red
7
VGA signal field synchronization
8
VGA signal Blue
9
AV signal video output
10
VGA signal horizontal
synchronization.
Figure 2-5
Please refer to the following sheet for detailed information.
2.3 Remote Control
The remote control interface is shown as in Figure 2-1.
Please note remote control is not our standard accessory and it is not included in the accessory
bag.
13
Serial Number
Name
Function
1
Power button
Click it to boot up or shut down
the device.
2
Address
Click it to input device number, so
that you can control it.
3
Forward
Various forward speeds and
normal speed playback.
4
Slow play
Multiple slow play speeds or
normal playback.
5 Next record
In playback mode, playback the
next video.
6 Previous record
In playback mode, playback the
previous video.
7
Play/Pause
In pause mode, click this button
to realize normal playback.
In normal playback click this
button to pause playback.
In real-time monitor mode, click
this button to enter video search
menu.
8 Reverse/pause
Reverse playback pause mode,
click this button to realize normal
Figure 2-1
Please refer to the following sheet for detailed information.
14
playback.
In reverse playback click this
button to pause playback.
9 Cancel
Go back to previous menu or
cancel current operation (close
upper interface or control)
10
Record
Start or stop record manually
In record interface, working with
the direction buttons to select the
record channel.
Click this button for at least 1.5
seconds, system can go to the
Manual Record interface.
11
Direction keys
Switch current activated control,
go to left or right.
In playback mode, click up/down
button to switch playback
channel. In 1-window playback
mode, click left/right button to
control playback speed. .
Aux function(such as switch the
PTZ menu, enable/disable reuse
button)
12
Confirm /menu key
go to default button
go to the menu
13
Multiple-window switch
Switch between multiple-window
and one-window.
14
Auxiliary key
In 1-ch monitor mode: pop up
assistant function: PTZ control
and Video color.
Switch the PTZ control menu in
PTZ control interface.
In motion detection interface,
working with direction keys to
complete setup.
In text mode, click it to delete
character.
15
0-9 number key
Input password, channel or
switch channel.
Shift is the button to switch the
input method.
2.4 Mouse Operation
Please refer to the following sheet for mouse operation instruction.
15
Left click
mouse
When you have selected one menu item, left click mouse to view menu
content.
Modify checkbox
Click combo box to pop up dropdown list
In input box, you can select input methods. Left click the corresponding button
on the panel you can input numeral/English character (small/capitalized). Here
← stands for backspace button. _ stands for space button.
In English input mode: _stands for input a backspace icon and ← stands for
deleting the previous character.
In numeral input mode: _ stands for clear and ← stands for deleting the
previous numeral.
Double left
click mouse
Implement special control operation such as double click one item in the file list
to playback the video.
In multiple-window mode, double left click one channel to view in full-window.
Double left click current video again to go back to previous multiple-window
mode.
Right click
mouse
In real-time monitor mode, pops up shortcut menu.
Exit current menu without saving the modification.
Press
middle
button
In numeral input box: Increase or decrease numeral value.
Switch the items in the check box.
Page up or page down
Move
mouse
Select current control or move control
Drag
mouse
Select privacy mask zone.
16
3 Installation and Connections
Note: All the installation and operations here should conform to your local electric safety
rules.
3.1 Check Unpacked DVR
When you receive the DVR from the forwarding agent, please check whether there is any visible
damage. The protective materials used for the package of the DVR can protect most accidental
clashes during transportation. Then you can open the box to check the accessories.
Please check the items in accordance with the list (Remote control is optional). Finally you can
remove the protective film of the DVR.
Note
Remote control is not a standard accessory and it is not included in the accessory bag.
3.2 About Front Panel and Rear Panel
For detailed information of the function keys in the front panel and the ports in the rear panel,
please refer to the appendix for detailed information.
The model in the front panel is very important; please check according to your purchase order.
The label in the rear panel is very important too. Usually we need you to represent the serial
number when we provide the service after sales.
3.3 HDD/SIM Card Installation
3.3.1 HDD Installation
Important
Shut down the device and unplug the power cable before install/remove the HDD.
The e-lock on the right side of the front panel shall be unlocked when you install/remove the
HDD. Please lock the button before you boot up the device.
The unit you received has no HDD. Please remove the HDD box from the device and then follow
the steps listed below to install.
1) The HDD box and the parts are shown as below. See Figure 3-1. It includes bottom board of
the HDD box and screws.
17
Figure 3-1
2) Please loosen the screws of the bottom board of the HDD box and then remove the bottom
board. Now you can see an interface shown as in Figure 3-2.
Figure 3-2
3) Now you can see an interface shown as in Figure 3-3. Use four screws to secure the HDD on
the bracket and then use two screws to fasten the bracket on the bottom board.
18
Figure 3-3
3.3.2 SIM Card Installation
This series product supports built-in SIM card. See Figure 3-4.
Remove the HDD box and then open the SIM card slot. Insert the SIM card and then close the
cover.
Figure 3-4
3.4 Connecting Power Supply
Please check input voltage and device power button match or not.
We recommend you use UPS to guarantee steady operation, DVR life span, and other peripheral
equipments operation such as cameras.
3.5 Connecting Audio/Video Input and Output Devices
3.5.1 Connecting Video Input
The input video format includes: composite signal PAL/NTSC 1.0VB
P- P 75Ω
.
19
Socket
Switch cable color and
definition
Port
4-pin aviation port
1
DC power male socket. External is
negative and internal is positive.
(Camera power)
1 12V external camera power
2
DC power male socket. External is
2 GND
The video signal should comply with your national standards.
The input video signal shall have high SNR, low distortion; low interference, natural color and
suitable lightness.
Guarantee the stability and reliability of the camera signal:
The camera shall be installed in a cool, dry place away from direct sunlight, inflammable,
explosive substances and etc.
The camera and the DVR should have the same grounding to ensure the normal operation of the
camera.
Guarantee stability and reliability of the transmission lineBTTTB
Please use high quality, sound shielded BNC. Please select suitable BNC model according to the
transmission distance.
If the distance is too long, you should use twisted pair cable, and you can add video compensation
devices or use optical fiber to ensure video quality.
You should keep the video signal away from the strong electromagnetic interference, especially
the high tension current.
Keep connection lugs in well contactBTTTB
The signal line and shielded wire should be fixed firmly and in well connection. Avoid dry joint, lap
welding and oxidation.BTTTB
3.5.2 Audio Input
Due to high impedance of audio input, please use active sound pick-up.
Audio transmission is similar to video transmission. Try to avoid interference, dry joint, loose
contact and it shall be away from high tension current.
3.5.3 Audio/Video Input Switch Cable
Please use the following audio/video input cable if your camera port is BNC.
Please refer to Figure 3-5 for 4-pin aviation port cable information.
Please refer to the following sheet for detailed information.
Figure 3-5
20
Socket
Switch cable color and
definition
Port
4-pin aviation port
negative and internal is positive.
(Camera power)
3
Yellow BNC male port ( Video
input)
3 Audio
4
White BNC male port(Audio input)
4 Video
3.6 Connecting Audio/Video Output and Output Devices
3.6.1 Connecting Video Output
Video output includes a BNC(PAL/NTSC1.0V
BNC and VGA output at the same time.
When you are using pc-type monitor to replace the monitor, please pay attention to the following
points:
To defer aging, do not allow the pc monitor to run for a long time.
Regular demagnetization will keep device maintain proper status.
Keep it away from strong electromagnetic interference devices.
Using TV as video output device is not a reliable substitution method. You also need to reduce the
working hour and control the interference from power supply and other devices. The low quality
TV may result in device damage.
3.6.2 Audio Output
The audio output signal parameter is usually over 200mv 1KΩ (BNC). It can directly connect to
low impedance earphone, active sound box or amplifier-drive audio output device.
If the sound box and the pick-up cannot be separated spatially, it is easy to arouse squeaking. In
this case you can adopt the following measures:
Use better sound pick-up with better directing property.
Reduce the volume of the sound box.
Using more sound-absorbing materials in decoration can reduce voice echo and improve
acoustics environment.
Adjust the layout to reduce happening of the squeaking.
3.6.3 Audio/Video Output Switch Cable
Audio/video output cable is shown as below. See Figure 3-6. You can use it when your monitor
port is general BNC port.
,75Ω)output ,a VGA output. System supports
P-P
Please refer to the following sheet for detailed information.
Figure 3-6
21
Socket
Switch cable color and
definition
Port
4-pin aviation port
1
DC power male socket. External is
negative and internal is positive.
(Camera power)
1 12V external camera power
2
DC power male socket. External is
negative and internal is positive.
(Camera power)
2 GND
3
Yellow BNC male port ( Video
input)
3 Audio
4
White BNC male port(Audio input)
4 Video
Note
For some special series products, you need contact your local retailer for additional audio/video
output cable.
3.7 Alarm Input and Output Connection
There are two alarm input types for you to select: normal open (NO) and normal close (NC).
1. Alarm input
a. Alarm input supports grounding alarm input.
b. Alarm input 1-16 supports 12V voltage signal alarm input.
c. When the alarm device is connecting one DVR and one other device, please use a relay to
separate them,
2. Alarm output
a. Ensure the decoder has the same grounding with DVR, otherwise you may not control the PTZ.
Shielded twisted wire is recommended and the shielded layer is used to connect to the grounding.
b. Avoid high voltage. Ensure proper wiring and some thunder protection measures.
c. For too long signal wires, 120Ω should be parallel connected between A, B lines on the far end
to reduce reflection and guarantee the signal quality.
d. “485 A, B” of DVR cannot parallel connect with “485 port” of other device.
e. The voltage between of A,B lines of the decoder should be less than 5v.
3. PTZ decoder connection
Support 2-channel analog signal level input. <0}
4. Please make sure the front-end device has soundly earthed.
Improper grounding may result in chip damage.
3.7.1 Alarm Input and Output Details
Alarm input and output interface is shown as in Figure 3-7.
22
Name
Pin Introduction
1~7
Alarm input 1~Alarm input 7
8
Alarm GND
9/11
NC1/NC2 of alarm output 1/2
10/12
NO1/NO2 of alarm output 1/2
Figure 3-7
Please refer to the following sheet for detailed information.
3.7.2 Alarm Input Port
Please refer to the following sheet for more information. See Figure 3-8.
Normal open or Normal close type.
Please parallel connect COM end and COM end of the alarm detector (Provide external
power to the alarm detector).
Please parallel connect the Ground of the DVR and the ground of the alarm detector.
Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
Use the same ground with that of DVR if you use external power to the alarm device.
3.7.3 Alarm Output Port
Alarm output 1/2 is level input, output voltage is 12V. The max load shall be less than 12V/1A.
It should not be connected to high power load directly to avoid high current which may result
in relay damage. Please use the co contactor to realize the connection between the alarm
output port and the load.
To avoid overloading, please read the following relay parameters sheet carefully.
Figure 3-8
Relay Specification
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