Dahua DHI-NVR5224-24P-4KS2 User manual

Network Video Recorder
User’s Manual
V4.3.2

I
Cybersecurity Recommendations
Mandatory actions to be taken towards cybersecurity
1. Change Passwords and Use Strong Passwords:
The number one reason systems get “hacked” is due to having weak or default passwords. It is
recommended to change default passwords immediately and choose a strong password whenever
possible. A strong password should be made up of at least 8 characters and a combination of special
characters, numbers, and upper and lower case letters.
2. Update Firmware
As is standard procedure in the tech-industry, we recommend keeping NVR, DVR, and IP camera
firmware up-to-date to ensure the system is current with the latest security patches and fixes.
“Nice to have” recommendations to improve your network security
1. Change Passwords Regularly
Regularly change the credentials to your devices to help ensure that only authorized users are able to
access the system.
2. Change Default HTTP and TCP Ports:
● Change default HTTP and TCP ports for systems. These are the two ports used to communicate and to
view video feeds remotely.
● These ports can be changed to any set of numbers between 1025-65535. Avoiding the default ports
reduces the risk of outsiders being able to guess which ports you are using.
3. Enable HTTPS/SSL:
Set up an SSL Certificate to enable HTTPS. This will encrypt all communication between your devices
and recorder.
4. Enable IP Filter:
Enabling your IP filter will prevent everyone, except those with specified IP addresses, from accessing
the system.
5. Change ONVIF Password:
On older IP Camera firmware, the ONVIF password does not change when you change the system’s
credentials. You will need to either update the camera’s firmware to the latest revision or manually
change the ONVIF password.
6. Forward Only Ports You Need:
● Only forward the HTTP and TCP ports that you need to use. Do not forward a huge range of numbers
to the device. Do not DMZ the device's IP address.
● You do not need to forward any ports for individual cameras if they are all connected to a recorder on
site; just the NVR is needed.
7. Disable Auto-Login on SmartPSS:

II
Those using SmartPSS to view their system and on a computer that is used by multiple people should
disable auto-login. This adds a layer of security to prevent users without the appropriate credentials from
accessing the system.
8. Use a Different Username and Password for SmartPSS:
In the event that your social media, bank, email, etc. account is compromised, you would not want
someone collecting those passwords and trying them out on your video surveillance system. Using a
different username and password for your security system will make it more difficult for someone to
guess their way into your system.
9. Limit Features of Guest Accounts:
If your system is set up for multiple users, ensure that each user only has rights to features and functions
they need to use to perform their job.
10. UPnP:
● UPnP will automatically try to forward ports in your router or modem. Normally this would be a good
thing. However, if your system automatically forwards the ports and you leave the credentials defaulted,
you may end up with unwanted visitors.
● If you manually forwarded the HTTP and TCP ports in your router/modem, this feature should be
turned off regardless. Disabling UPnP is recommended when the function is not used in real applications.
11. SNMP:
Disable SNMP if you are not using it. If you are using SNMP, you should do so only temporarily, for
tracing and testing purposes only.
12. Multicast:
Multicast is used to share video streams between two recorders. Currently there are no known issues
involving Multicast, but if you are not using this feature, deactivation can enhance your network security.
13. Check the Log:
If you suspect that someone has gained unauthorized access to your system, you can check the system
log. The system log will show you which IP addresses were used to login to your system and what was
accessed.
14. Physically Lock Down the Device:
Ideally, you want to prevent any unauthorized physical access to your system. The best way to achieve
this is to install the recorder in a lockbox, locking server rack, or in a room that is behind a lock and key.
15. Connect IP Cameras to the PoE Ports on the Back of an NVR:
Cameras connected to the PoE ports on the back of an NVR are isolated from the outside world and
cannot be accessed directly.
16. Isolate NVR and IP Camera Network
The network your NVR and IP camera resides on should not be the same network as your public
computer network. This will prevent any visitors or unwanted guests from getting access to the same
network the security system needs in order to function properly.

III
Table of Contents
1Features and Specifications ............................................................................................................................1
1.1 Overview.....................................................................................................................................................1
1.2 Features......................................................................................................................................................1
1.3 Specifications.............................................................................................................................................2
1.3.1 NVR21-S2/NVR21-P-S2/NVR21-8P-S2 Series.............................................................................2
1.3.2 NVR1A-4P/1A-8P Series...................................................................................................................5
1.3.3 NVR21HS-S2/21HS-P-S2/21HS-8P-S2 Series.............................................................................7
1.3.4 NVR1AHS/1AHS-4P/1AHS-8P Series............................................................................................9
1.3.5 NVR41HS-W-S2 Series...................................................................................................................11
1.3.6 NVR41/41-P/41-8P/41-W Series ...................................................................................................12
1.3.7 NVR41H/41H-P/41H-8P Series .....................................................................................................14
1.3.8 NVR22-S2/22-P-S2/22-8P-S2 Series............................................................................................16
1.3.9 NVR42N Series ................................................................................................................................18
1.3.10 NVR42/42-P/42-8P Series..............................................................................................................19
1.3.11 NVR42-16P Series...........................................................................................................................21
1.3.12 NVR2A16 Series ..............................................................................................................................23
1.3.13 NVR52-4KS2/52-8P-4KS2/52-16P-4KS2 Series ........................................................................24
1.3.14 NVR44/44-8P/44-16P Series..........................................................................................................26
1.3.15 NVR54-4KS2/54-16P-4KS2 Series...............................................................................................28
1.3.16 NVR58-4KS2/58-16P-4KS2 Series...............................................................................................30
1.3.17 NVR48/48-16P Series.....................................................................................................................31
1.3.18 NVR42V-8P Series ..........................................................................................................................33
1.3.19 NVR41-4KS2/41-P-4KS2/41-8P-4KS2 Series.............................................................................35
1.3.20 NVR41HS-4KS2/ 41HS-P-4KS2/41HS-8P-4KS2 Series...........................................................37
1.3.21 NVR42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2 Series....................................................39
1.3.22 NVR5224-24P-4KS2 Series ...........................................................................................................42
1.3.23 NVR44-4KS2/44-16P-4KS2 Series...............................................................................................44
1.3.24 NVR5424-24P-4KS2 Series ...........................................................................................................46
1.3.25 NVR48-4KS2/48-16P-4KS2 Series...............................................................................................48
1.3.26 NVR21-4KS2/21-P-4KS2/21-8P-4KS2 Series.............................................................................50
1.3.27 NVR21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2 Series............................................................53
1.3.28 NVR22-4KS2/21-P-4KS2/22-8P-4KS2 Series.............................................................................56
1.3.29 NVR52-16P-4KS2E Series.............................................................................................................59
1.3.30 NVR54-16P-4KS2E Series.............................................................................................................60
1.3.31 NVR58-16P-4KS2E Series.............................................................................................................62
2Front Panel and Rear Panel..........................................................................................................................65
2.1 Front Panel...............................................................................................................................................65
2.1.1
NVR41/41-P/41-W/21-S2/21-P-S2/21-8P-S2/41-4KS2/41-P-4KS2/41-8P-4KS2/1A-4P/1A-8
P/21-4KS2/21-P-4KS2/21-8P-4KS2 Series................................................................................................65
2.1.2 NVR41H/41H-P/41H-8P Series .....................................................................................................65
2.1.3 NVR41HS-W-S2 Series...................................................................................................................66
2.1.4 NVR41-8P Series.............................................................................................................................67

IV
2.1.5 NVR42/42-P/42-8P Series..............................................................................................................67
2.1.6
NVR21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2/1AHS/1
A HS-4P/1AHS-8P/21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2 Series .................................................69
2.1.7
NVR/22-S2/22-P-S2/22-8P-S2/42-16P/42N/52-4KS2/52-8P-4KS2/52-16P-4KS2/42-4KS2/4
2-P-4KS2/42-8P-4KS2/42-16P-4KS2/5224-24P-4KS2/54-4KS2/54-16P-4KS2/44-4KS2/44-16P-4KS
2/5424-24P-4KS2/58-4KS2/S258-16P-4KS2/48-4KS2/48-16P-4KS2/2A16/22-4KS2-22-P-4KS2-22-
8P-4KS2/52-16P-4KS2E/54-16P-4KS2E/58-16P-4KS2E Series.........................................................69
2.1.8 NVR44/44-8P/44-16P Series..........................................................................................................70
2.1.9 NVR48/48-16P Series .....................................................................................................................72
2.1.10 NVR42V-8P Series...........................................................................................................................75
2.2 Rear Panel ...............................................................................................................................................76
2.2.1 NVR41/41-P/41-8P/41-W Series ...................................................................................................76
2.2.2 NVR21-S2/21-P-S2/21-8P-S2/1A-4P/1A-8P/21-4KS2/21-P-4KS2/21-8P-4KS2 Series.......78
2.2.3 NVR41H/41H-P/41H-8P Series......................................................................................................79
2.2.4
NVR21HS-S2/21HS-P-S2/21HS-8P-S2/1AHS/1AHS-4P/1AHS-8P/21HS-4KS2/21HS-P-4K
S2/21HS-8P-4KS2 Series..............................................................................................................................80
2.2.5 NVR41HS-W-S2 Series...................................................................................................................82
2.2.6 NVR22-S2/22-P-S2/22-8P-S2/2A16/22-4KS2/22-P-4KS2/22-8P-4KS2 Series.....................83
2.2.7 NVR42/42N/42-P/42-8P/42-16P Series........................................................................................84
2.2.8 NVR52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-16P-4KS2E Series ...............86
2.2.9 NVR44/44-8P/44-16P Series..........................................................................................................89
2.2.10 NVR54-4KS2/58-4KS2/54-16P-4KS2/58-16P-4KS2/5424-24P-4KS2/5816P-4KS2E Series
91
2.2.11 NVR48/48-16P Series .....................................................................................................................94
2.2.12 NVR42V-8P Series...........................................................................................................................96
2.2.13 NVR41-4KS2/41-P-4KS2/41-8P-4KS2.........................................................................................97
2.2.14 NVR41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2.........................................................................99
2.2.15 NVR42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2..............................................................100
2.2.16 NVR44-4KS2/44-16P-4KS2..........................................................................................................102
2.2.17 NVR48-4KS2/48-16P-4KS2 Series.............................................................................................104
2.3 Alarm Connection..................................................................................................................................106
2.3.1 Alarm Port........................................................................................................................................106
2.3.2 Alarm input port ..............................................................................................................................107
2.3.3 Alarm input and output port...........................................................................................................108
2.3.4 Alarm relay specifications .............................................................................................................108
2.4 Bidirectional talk ....................................................................................................................................108
2.4.1 Device-end to PC-end...................................................................................................................108
2.4.2 PC-end to the device-end.............................................................................................................109
2.5 Mouse Operation...................................................................................................................................109
2.6 Remote Control .....................................................................................................................................110
3Device Installation.........................................................................................................................................113
3.1 Device Installation Diagrams...............................................................................................................113

V
3.2 Check Unpacked NVR..........................................................................................................................113
3.3 About Front Panel and Rear Panel.....................................................................................................113
3.4 HDD Installation.....................................................................................................................................114
3.4.1
NVR41/41-P/41-8P/41-W/21-S2/21-P-S2/21-8P-S2/41-4KS2/41-P-4KS2/41-8P-4KS2/1A-4
P/1A-8P/21-4KS2/21-P-4KS2/21-8P-4KS2 Series..................................................................................114
3.4.2
NVR41H/41H-P/41H-8P/21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-W-S2/41HS-4KS2/41HS
-P-4KS2/41HS-8P-4KS2/1AHS/1AHS-4P/1AHS-8P/21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2
Series 115
3.4.3
NVR42/42N/42-P/42-8P/42-16P/42-4K/42-8P-4K/52-4KS2/52-8P-4KS2/52-16P-4KS2/22-S
2/22-P-S2/22-8P-S2/42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2/5224-24P-4KS2/2A16/22-4KS
2/22-P-4KS2/22-8P-4KS2/52-16P-4KS2E Series....................................................................................115
3.4.4
NVR44/44-8P/44-16P/54-4KS2/54-16P-4KS2/44-4KS2/44-16P-4KS2/5424-24P-4KS2/54-1
6P-4KS2E Series..........................................................................................................................................116
3.4.5 NVR48/48-16P/58-4KS2/58-16P-4KS2/48-4KS2/48-16P-4KS2/52-16P-4KS2E Series.....116
3.4.6 NVR42V-8P Series ........................................................................................................................117
3.5 CD-ROM Installation.............................................................................................................................118
3.6 Connection Sample...............................................................................................................................119
3.6.1
NVR41/41-P/41-8P/41-W/21-S2/21-P-S2/21-8P-S2/41-4KS2/41-P-4KS2/41-8P-4KS2/1A-4
P/1A-8P/21-4KS2/21-P-4KS2/21-8P-4KS2 Series..................................................................................119
3.6.2 NVR41H/41H-P/41H-8P Series ...................................................................................................120
3.6.3 NVR41HS-W-S2 Series.................................................................................................................121
3.6.4
NVR21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2/1AHS/1
AHS-4P/1AHS-8P/21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2 Series................................................122
3.6.5 NVR22-S2/22-P-S2/22-8P-S2/2A16/22-4KS2/22-P-4KS2/22-8P-4KS2 Series...................123
3.6.6 NVR42N Series ..............................................................................................................................124
3.6.7
NVR42/42-P/42-8P/42-16P/52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-16P-4
KS2E Series...................................................................................................................................................125
3.6.8 NVR42-8P-4K/42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2 Series................................125
3.6.9
NVR54-4KS2/54-16P-4KS2/58-4KS2/58-16P-4KS2/5424-24P-4KS2/54-16P-4KS2E/5816P
-4KS2E Series...............................................................................................................................................126
3.6.10 NVR44/44-8P/44-16P/44-4KS2/44-16P-4KS2 Series..............................................................127
3.6.11 NVR48/48-16P/48-4KS2/48-16P-4KS2 Series..........................................................................127
3.6.12 NVR42V-8P Series ........................................................................................................................128
4Local Basic Operation..................................................................................................................................130
4.1 Getting Started.......................................................................................................................................130
4.1.1 Boot up and Shut down.................................................................................................................130
4.1.2 Device Initialization ........................................................................................................................130
4.1.3 Reset Password..............................................................................................................................134

VI
4.1.4 Quick Settings.................................................................................................................................137
4.2 Camera...................................................................................................................................................162
4.2.1 Connection......................................................................................................................................162
4.2.2 Remote Device Initialization .........................................................................................................165
4.2.3 Short-Cut Menu to Register Camera...........................................................................................170
4.2.4 Image ...............................................................................................................................................170
4.2.5 Encode.............................................................................................................................................172
4.2.6 Channel Name................................................................................................................................176
4.2.7 Remote Upgrade............................................................................................................................177
4.2.8 Remote Device Info........................................................................................................................178
4.3 Preview...................................................................................................................................................180
4.3.1 Preview............................................................................................................................................180
4.3.2 Navigation bar.................................................................................................................................180
4.3.3 Preview Control Interface..............................................................................................................183
4.3.4 Right Click Menu ............................................................................................................................185
4.3.5 Edit View (Sequence)....................................................................................................................187
4.3.6 Preview Display Effect Setup .......................................................................................................189
4.3.7 Fisheye (Optional)..........................................................................................................................196
4.4 PTZ..........................................................................................................................................................198
4.4.1 PTZ Settings....................................................................................................................................198
4.4.2 PTZ Control.....................................................................................................................................200
4.5 Record File.............................................................................................................................................205
4.6 Playback and Search............................................................................................................................205
4.6.1 Instant Playback.............................................................................................................................205
4.6.2 Search Interface.............................................................................................................................205
4.6.3 Smart Search Playback.................................................................................................................213
4.6.4 Mark Playback ................................................................................................................................214
4.6.5 Playback Image..............................................................................................................................215
4.6.6 Splice Playback...............................................................................................................................215
4.6.7 Smart Playback...............................................................................................................................216
4.6.8 File List.............................................................................................................................................221
4.6.9 Other Aux Functions.....................................................................................................................223
4.7 Event Manager......................................................................................................................................223
4.7.1 Video Detect....................................................................................................................................223
4.7.2 Smart Plan.......................................................................................................................................230
4.7.3 IVS (General Behavior Analytics) (Optional)..............................................................................232
4.7.4 Face Detect (Optional)...................................................................................................................251
4.7.5 People Counting (Optional)...........................................................................................................252
4.7.6 Heat Map.........................................................................................................................................253
4.7.7 Plate Recognition...........................................................................................................................255
4.7.8 Audio Detect (Optional).................................................................................................................257
4.7.9 Alarm Settings.................................................................................................................................258
4.7.10 Abnormality......................................................................................................................................263
4.7.11 Alarm output....................................................................................................................................265
4.7.12 POS..................................................................................................................................................266
4.8 Network...................................................................................................................................................270

VII
4.8.1 Network Settings ............................................................................................................................270
4.8.2 Network Test....................................................................................................................................289
4.9 Storage ...................................................................................................................................................291
4.9.1 Basic.................................................................................................................................................291
4.9.2 Schedule..........................................................................................................................................292
4.9.3 HDD..................................................................................................................................................292
4.9.4 FTP...................................................................................................................................................293
4.9.5 Record Control................................................................................................................................294
4.9.6 HDD Information.............................................................................................................................295
4.9.7 HDD Group......................................................................................................................................297
4.9.8 HDD Detect.....................................................................................................................................297
4.9.9 RAID Manager................................................................................................................................300
4.10 Device Maintenance and Manager.....................................................................................................302
4.10.1 Account............................................................................................................................................302
4.10.2 System Info......................................................................................................................................311
4.10.3 Voice.................................................................................................................................................314
4.10.4 RS232..............................................................................................................................................316
4.10.5 Broadcast.........................................................................................................................................317
4.10.6 Security............................................................................................................................................319
4.10.7 Auto Maintain..................................................................................................................................321
4.10.8 Backup.............................................................................................................................................321
4.10.9 Default..............................................................................................................................................325
4.10.10 Upgrade.......................................................................................................................................326
4.11 Logout /Shutdown/Restart ...................................................................................................................328
5Web Operation...............................................................................................................................................329
5.1 General Introduction.............................................................................................................................329
5.1.1 Preparation......................................................................................................................................329
5.2 Device Initialization...............................................................................................................................329
5.2.1 Log in................................................................................................................................................332
5.3 Reset Password....................................................................................................................................333
5.4 LAN Mode...............................................................................................................................................334
5.5 Real-time Monitor..................................................................................................................................336
5.6 PTZ..........................................................................................................................................................337
5.7 Image/Alarm-out....................................................................................................................................338
5.7.1 Image ...............................................................................................................................................339
5.7.2 Alarm output....................................................................................................................................339
5.8 Zero-channel Encode...........................................................................................................................339
5.9 WAN Login.............................................................................................................................................340
5.10 Setup.......................................................................................................................................................341
5.10.1 Camera............................................................................................................................................341
5.10.2 Network............................................................................................................................................353
5.10.3 Event................................................................................................................................................371
5.10.4 Storage.............................................................................................................................................399
5.10.5 Setting..............................................................................................................................................407
5.11 Information .............................................................................................................................................429
5.11.1 Version.............................................................................................................................................429

VIII
5.11.2 Log....................................................................................................................................................429
5.11.3 Online User......................................................................................................................................430
5.11.4 People Counting.............................................................................................................................431
5.11.5 Heat Map.........................................................................................................................................431
5.11.6 HDD..................................................................................................................................................432
5.12 Playback.................................................................................................................................................432
5.12.1 Search Record................................................................................................................................433
5.12.2 File List.............................................................................................................................................433
5.12.3 Playback ..........................................................................................................................................434
5.12.4 Download.........................................................................................................................................434
5.12.5 Load more........................................................................................................................................435
5.13 Smart Playback .....................................................................................................................................437
5.13.1 IVS (Behavior Analytics)................................................................................................................438
5.13.2 Plate recognition.............................................................................................................................439
5.13.3 Human Face....................................................................................................................................440
5.14 Alarm.......................................................................................................................................................441
5.15 Log out....................................................................................................................................................442
5.16 Un-install Web Control..........................................................................................................................443
6Glossary..........................................................................................................................................................444
7FAQ.................................................................................................................................................................445
8Appendix A HDD Capacity Calculation ......................................................................................................450
9Appendix B Compatible Network Camera List..........................................................................................451

IX
Foreword
General
This user’s manual (hereinafter referred to be "the Manual") introduces the functions and
operations of the Network Video Recorder (NVR) devices (hereinafter referred to be "the
Device").
Safety Instructions
The following categorized signal words with defined meaning might appear in the Manual.
Signal Words
Meaning
Indicates a high potential hazard which, if not avoided, will result
in death or serious injury.
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or unpredictable
result.
Indicates dangerous high voltage.
Take care to avoid coming into contact with electricity.
Indicates a laser radiation hazard.
Take care to avoid exposure to a laser beam.
Electrostatic Sensitive Devices.
Indicates a device that is sensitive to electrostatic discharge.
Provides methods to help you solve a problem or save you time.
Provides additional information as the emphasis and supplement
to the text.
Privacy Protection Notice
As the device user or data controller, you might collect personal data of others' 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.
About the Manual

X
The Manual is for reference only. If there is inconsistency between the Manual and the
actual product, the actual product shall govern.
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 User's Manual, CD-ROM, QR code or our
official website. If there is inconsistency between paper User's 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

XI
Important Safeguards and Warnings
The following description is the correct application method of the device. Read the manual
carefully before use to prevent danger and property loss. Strictly conform to the manual during
application and keep it properly after reading.
Operating Requirement
Don’t place and install the device in an area exposed to direct sunlight or near heat
generating device.
Don’t install the device in a humid, dusty or fuliginous area.
Keep its horizontal installation, or install it at stable places, and prevent it from falling.
Don’t drip or splash liquids onto the device; don’t put on the device anything filled with
liquids, in order to prevent liquids from flowing into the device.
Install the device at well-ventilated places; don’t block its ventilation opening.
Use the device only within rated input and output range.
Don’t dismantle the device arbitrarily.
Transport, use and store the device within allowed humidity and temperature range.
Power Requirement
Make sure to use batteries according to requirements; otherwise, it may result in fire,
explosion or burning risks of batteries!
To replace batteries, only the same type of batteries can be used.
The product shall use electric wires (power wires) recommended by this area, which shall
be used within its rated specification.
Make sure to use standard power adapter matched with this device. Otherwise, the user
shall undertake resulting personnel injuries or device damages.
Use power supply that meets SELV (safety extra low voltage) requirements, and supply
power with rated voltage that conforms to Limited Power Source in IEC60950-1. For
specific power supply requirements, please refer to device labels.
Products with category I structure shall be connected to grid power output socket, which is
equipped with protective grounding.
Appliance coupler is a disconnecting device. During normal use, please keep an angle that
facilitates operation.

1
1 Features and Specifications
1.1 Overview
This series NVR is a high performance network video recorder. This series product support local preview,
multiple-window display, recorded file local storage, remote control and mouse shortcut menu operation,
and remote management and control function.
This series product supports center storage, front-end storage and client-end storage. The monitor zone
in the front-end can be set in anywhere. Working with other front-end devices such as IPC, NVS, this
series product can establish a strong surveillance network via the CMS. In the network system, there is
only one network cable from the monitor center to the monitor zone in the whole network. There is no
audio/video cable from the monitor center to the monitor zone. The whole project is featuring of simple
connection, low-cost, low maintenance work.
This series NVR can be widely used in many areas such as public security, water conservancy,
transportation and education.
1.2 Features
Cloud
Upgrade
For the NVR connected with the Internet, it supports online upgrade to
update applications.
Real-time
Surveillance
VGA, HDMI port. Connect to monitor to realize real-time surveillance.
Some series support TV/VGA/HDMI output at the same time.
Short-cut menu when preview.
Support popular PTZ decoder control protocols. Support preset, tour
and pattern.
Playback
Support each channel real-time record independently, and at the same
time it can support search, 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.
User
Management
Each group has different management powers that can be edited freely.
Every user belongs to an exclusive group.
Storage
Via corresponding setup (such as alarm setup and schedule setup), you
can backup related audio/video data in the network video recorder.
Support Web record and record local video and storage the file in the
client end.
Alarm
Respond to external alarm simultaneously (within 200MS), based on
user’s pre-defined relay setup, system can process the alarm input
correctly and prompt user by screen and voice (support pre-recorded
audio).
Support central alarm server setup, so that alarm information can
remotely notify user automatically. Alarm input can be derived from

2
various connected peripheral devices.
Alert you via email/sms.
Network
Monitor
Through network, sending audio/video data compressed by IPC or NVS
to client-ends, then the data will be decompressed and display.
Support max 128 connections at the same time.
Transmit audio/video data by HTTP, TCP, UDP, MULTICAST,
RTP/RTCP and etc.
Transmit some alarm data or alarm info by SNMP.
Support WEB access in WAN/LAN.
Window Split
Adopt the video compression and digital process to show several
windows in one monitor. Support 1/4/8/9/16/ 25/36-window display when
preview and 1/4/9/16-window display when playback.
Record
Support normal/motion detect/alarm record function. Save the recorded
files in the HDD, USB device, client-end PC, or network storage server.
You can search or playback the saved files at the local-end or via the
Web/USB device.
Backup
Support network backup, USB2.0 record backup function, the recorded
files can be saved in network storage server, peripheral USB2.0
device, burner and etc.
Network
Management
Supervise NVR configuration and control power via Ethernet.
Support management via WEB.
Peripheral
Equipment
Management
Support peripheral equipment management such as protocol setup and
port connection.
Support transparent data transmission such as RS232 (RS-422), RS485
(RS-485).
Auxiliary
Support switch between NTSC and PAL.
Support real-time system resources information and running statistics
display.
Support log file.
Local GUI output. Shortcut menu operation via mouse.
IR control function (For some series product only.). Shortcut menu
operation via remote control.
Play the video/audio from the network camera or NVS remotely.
1.3 Specifications
1.3.1 NVR21-S2/NVR21-P-S2/NVR21-8P-S2 Series
Model
21-S2 Series
21-P-S2 Series
21-8P-S2 Series
System
System
Resources
4/8/16-ch series
product support
4/8/16 HD
connection
respectively. Total
bandwidth supports
80Mbps.
4/8-ch series product support 4/8 HD
connection respectively. Total bandwidth
supports 80Mbps.
OS
Embedded Linux real-time operation system

3
Model
21-S2 Series
21-P-S2 Series
21-8P-S2 Series
Operation
Interface
WEB/Local GUI
Decode
Video Decode
Type
H.264
Decode
Capability
Max 4-ch 1080P 30fps or 8-ch 720P 30fps or 8-ch D1 30fps
Video
Video Input
4/8/16-ch network
compression video
input
4/8-ch network compression video input
Video Output
1-channel VGA analog video output
HDMI
1-ch HDMI output. Version number is 1.4
Window Split
1/4/8/9/16-window
1/4/8/9-window
Audio
Audio Input
1-ch bidirectional talk input
Audio Output
1-ch bidirectional talk output
Audio
Compression
Standard
G.711a
Alarm
Alarm Input
N/A
Alarm Output
N/A
Function
Storage
1 built-in SATA port
Multiple-Chann
el Playback
Max 8-channel D1 or 8-channel 720P or 4-channel 1080P playback

4
Model
21-S2 Series
21-P-S2 Series
21-8P-S2 Series
Port and
Indicator
RS232 Port
N/A
RS485 Port
N/A
USB Port
2 peripheral USB2.0 ports.
Network
Connection
1 RJ45 10/100Mbps self-adaptive Ethernet port.
PoE
N/A
4
8
Power Port
1 power socket.
Power adapter
power supplying
mode. DC 12V
power.
1 power socket.
Power adapter
power supplying
mode. DC 48V
power.
1 power socket.
Power adapter
power supplying
mode. DC 48V
power.
Power Button
N/A
Power On-off
Button
N/A
IR Receiver
Window
N/A
Clock
Built-in clock.
Indicator Light
One power status indicator light.
One network status indicator light.
One HDD status indicator light.
General
Power
Consumption
＜10W (No HDD)
Working
Temperature
﹣10℃～﹢55℃
Working
Humidity
10℅～90℅
Air pressure
86kPa～106kPa
Dimension
205mm×206.75mm×
205mm×206.75mm×
425mm×95mm×260

5
Model
21-S2 Series
21-P-S2 Series
21-8P-S2 Series
45.2mm
45.2mm
mm
Weight
0.5kg～2kg (No HDD)
Installation
Mode
Desk installation
1.3.2 NVR1A-4P/1A-8P Series
Model
NVR1A-4P Series
NVR1A-8P Series
System
System
Resources
4/8-ch series product support 4/8 HD connection respectively. Total
bandwidth supports 80Mbps.
OS
Embedded Linux real-time operation system
Operation
Interface
WEB/Local GUI
Decode
Video Decode
Type
Smart H.264+/H.264
Decode
Capability
Max 4-ch 1080P 30fps or 8-ch 720P 30fps or 8-ch D1 30fps
Video
Video Input
4/8-ch network compression video input
Video Output
1-channel VGA analog video output
HDMI
1-ch HDMI output. Version number is 1.4
Window Split
1/4/8/9-window
Audio
Audio Input
1-ch bidirectional talk input
Audio Output
1-ch bidirectional talk output

6
Model
NVR1A-4P Series
NVR1A-8P Series
Audio
Compression
Standard
G.711a
Alarm
Alarm Input
N/A
Alarm Output
N/A
Function
Storage
1 built-in SATA port
Multiple-Chann
el Playback
Max 8-channel D1 or 8-channel 720P or 4-channel 1080P playback
Port and
Indicator
RS232 Port
N/A
RS485 Port
N/A
USB Port
2 peripheral USB2.0 ports.
Network
Connection
1 RJ45 10/100Mbps self-adaptive Ethernet port.
PoE
4
8
Power Port
1 power socket. Power adapter
power supplying mode. DC 48V
power.
1 power socket. Power adapter
power supplying mode. DC 48V
power.
Power Button
N/A
Power On-off
Button
N/A
IR Receiver
Window
N/A
Clock
Built-in clock.

7
Model
NVR1A-4P Series
NVR1A-8P Series
Indicator Light
One power status indicator light.
One network status indicator light.
One HDD status indicator light.
General
Power
Consumption
＜10W (No HDD)
Working
Temperature
﹣10℃～﹢55℃
Working
Humidity
10℅～90℅
Air pressure
86kPa～106kPa
Dimension
205mm×206.75mm×45.2mm
425mm×95mm×260mm
Weight
0.5kg～2kg (No HDD)
Installation
Mode
Desk installation
1.3.3 NVR21HS-S2/21HS-P-S2/21HS-8P-S2 Series
Model
NVR21HS-S2
Series
NVR21HS-P-S2
Series
NVR21HS-8P-S2
Series
System
System
Resources
4/8/16-ch series
product support
4/8/16 HD
connection
respectively. Total
bandwidth supports
80Mbps.
4/8-ch series product support 4/8 HD
connection respectively. Total bandwidth
supports 80Mbps.
OS
Embedded Linux real-time operation system
Operation
Interface
WEB/Local GUI
Decode
Video Decode
Type
H.264
Decode
Capability
Max 4-ch 1080P 30fps or 8-ch 720P 30fs or 8-ch D1 30fps
Video
Video Input
4/8/16-ch network
compression video
input
4/8-ch network compression video input

8
Model
NVR21HS-S2
Series
NVR21HS-P-S2
Series
NVR21HS-8P-S2
Series
Video Output
1-channel VGA analog video output
HDMI
1-ch HDMI output. Version number is 1.4
Window Split
1/4/8/9/16-window
1/4/8/9-window
Audio
Audio Input
1-ch bidirectional talk input
Audio Output
1-ch bidirectional talk output
Audio
Compression
Standard
G.711a
Alarm
Alarm Input
N/A
Alarm Output
N/A
Function
Storage
1 built-in SATA port
Multiple-Chann
el Playback
Max 4-channel 1080P or 8-channel 720P or 8-channel D1 playback
Port and
Indicator
RS232 Port
N/A
RS485 Port
N/A
USB Port
2 peripheral USB2.0 ports.
Network
Connection
1 RJ45 10/100Mbps self-adaptive Ethernet port.
PoE Port
N/A
4
8
Power Port
1 power socket.
Power adapter
power supplying
mode. DC 12V
power.
1 power socket.
Power adapter
power supplying
mode. DC 48V
power.
1 power socket.
Power adapter
power supplying
mode. DC 48V
power.
Power Button
N/A
Power On-off
Button
N/A
IR Receiver
Window
N/A
Clock
Built-in clock.
Indicator Light
One power status indicator light.
One network status indicator light.