Dahua N41C1P User manual

Network Video Recorder
User's Manual
Dahua North America V2.3.1

User's Manual
I
Foreword
General
This user’s manual (hereinafter referred to be "the Manual") introduces the installation,
functions and operations of the Network Video Recorder (NVR) devices (hereinafter referred
to be "the Device"). Read carefully before using the Device, and keep the manual safe for
future reference.
Safety Instructions
The following signal words 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, reductions in performance, or
unpredictable results.
Provides methods to help you solve a problem or save you
time.
Provides additional information as a supplement to the text.
Revision History
Version
Revision Content
Release Time
V2.3.1
Added 8 models.
February 2023
V2.3.0
Added smart tracking and sub screen
mirroring.
August 2022
V2.2.0
Added Analytics+ SSA and Quick Pick.
June 2022
V2.1.0
Updated cluster service.
April 2022
V2.0.0
●Added intelligent diagnosis.
●Added report query.
●Added resetting password through
DMSS app.
●Added LLDP.
●Updated several figures of the local
interface.
March 2022

User's Manual
II
Version
Revision Content
Release Time
V1.3.0
●Added some models.
●Updated the web login page.
●Added privacy masking.
●Added Analytics+ codec.
November 2021
V1.1.0
Combined Analytics+ and non-Analytics+
models and deleted discontinued models.
May 2021
V1.0.10
Added several models.
April 2021
V1.0.9
Added 6 models.
February 2021
V1.0.8
Added 5 models.
January 2021
V1.0.6
●Added picture search, picture search
playback, disk health monitoring, and
exporting and importing face
database.
●Updated Analytics+ search, human
detection, configuration of Face
Detection+, and display settings.
May 2020
V1.0.5
Added split tracking, main-sub tracking,
analytics list, configuring video
quality analytics, iSCSI, and cluster
service.
May 2020
V1.0.4
●Added 16 models.
●Added PoE status, switch, and
display.
April 2020
V1.0.3
●New GUI baseline, replaces all
interfaces.
●Added Analytics+ functions.
July 2019
V1.0.2
Updated the description of rear panel.
May 2019
V1.0.1
●Updated icons on the rear panel.
●Added video metadata function
and non-motor vehicle detection
function.
September 2018
Privacy Protection Notice
As the device user or data controller, you might collect the personal data of others such as
their face, fingerprints, and license plate number. You need to be in compliance with your
local privacy protection laws and regulations to protect the legitimate rights and interests of
other people by implementing measures which include but are not limited: Providing clear
and visible identification to inform people of the existence of the security area and provide
required contact information.

User's Manual
III
About the Manual
●The manual is for reference only. If there is inconsistency between the manual and the
actual product,
●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 see 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 see our final explanation.

User's Manual
IV
Important Safeguards and Warnings
This section introduces content covering the proper handling of the Device, hazard
prevention, and prevention of property damage. Read carefully before using the Device, and
comply with the guidelines when using it.
Transportation Requirements
Transport the Device under allowed humidity and temperature conditions.
Storage Requirements
Store the Device under allowed humidity and temperature conditions.
Operation Requirements
●Do not place the Device in a place exposed to sunlight or near heat sources.
●Keep the Device away from dampness, dust, and soot.
●Install the Device on a stable surface to prevent it from falling.
●Do not drop or splash liquid onto the Device, and make sure that there is no object filled
with liquid on the Device to prevent liquid from flowing into it.
●Put the Device in a well-ventilated place, and do not block its ventilation.
●Operate the Device within the rated range of power input and output.
●Do not disassemble the Device.
●Use the Device under allowed humidity and temperature conditions.
Installation Requirements
●Do not connect the power adapter to the device while the adapter is powered on.
●Strictly comply with the local electric safety code and standards. Make sure the ambient
voltage is stable and meets the power supply requirements of the device.
●Do not expose the battery to environments with extremely low air pressure, or extremely
high or low temperatures. Also, it is strictly prohibited to throw the battery into a fire or
furnace, and to cut or put mechanical pressure on the battery. This is to avoid the risk of
fire and explosion.
●Use the standard power adapter or cabinet power supply. We will assume no
responsibility for any injuries or damages caused by the use of a nonstandard power
adapter.

User's Manual
V
●Do not place the Device in a place exposed to sunlight or near heat sources.
●Keep the Device away from dampness, dust, and soot.
●Put the Device in a well-ventilated place, and do not block its ventilation.
●Install the Device on a stable surface to prevent it from falling.
●The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and
be no higher than PS2. Please note that the power supply requirements are subject to the
device label.
●The device is a class I electrical appliance. Make sure that the power supply of the Device
is connected to a power socket with protective earthing.
●Use power cords that conform to your local requirements, and are rated specifications.
●Before connecting the power supply, make sure the input voltage matches the power
requirements of the Device.
●When installing the Device, make sure that the power plug and appliance coupler can be
easily reached to cut off power.
●Install the Device near a power socket for emergency disconnect.
●It is prohibited for non-professionals and unauthorized personnel to open the Device
casing.

User's Manual
VI
Table of Contents
Foreword................................................................................................................................................................... I
Important Safeguards and Warnings ................................................................................................................IV
1 Introduction...........................................................................................................................................................1
1.1 Overview ........................................................................................................................................................1
1.2 Features .........................................................................................................................................................1
2 Front Panel and Rear Panel............................................................................................................................... 4
2.1 Front Panel................................................................................................................................................... 4
2.1.1 N41C1P/N41C2P ..................................................................................................................................4
2.1.2 N42C1P/N42C2P/N42C3P/N52B5P/N54A4P/N54B3P/N54B5N............................................... 6
2.1.3 N82B2P/N82B3P/N82B5P ................................................................................................................ 7
2.1.4 N84B3P/N84B3N/N84B5N .............................................................................................................. 8
2.1.5 N98A5N/N98A6N/N98A7N ............................................................................................................. 9
2.2 Rear Panel...................................................................................................................................................10
2.2.1 N41C1P/N41C2P.................................................................................................................................10
2.2.2 N42C1P/N42C2P/N42C3P/N52B5P/N54A4P/N54B3P/N54B5N ............................................. 11
2.3 Alarm Connection .................................................................................................................................... 14
2.3.1 Alarm Port ......................................................................................................................................... 14
2.3.2 Alarm Input Port.............................................................................................................................. 14
2.3.3 Alarm Output Port............................................................................................................................16
2.3.4 Alarm Relay Specifications .............................................................................................................17
2.4 Two-way Talk.............................................................................................................................................17
2.4.1 Device-end to PC-end......................................................................................................................17
2.4.2 PC-end to the Device-end ..............................................................................................................18
3 Device Installation..............................................................................................................................................19
3.1 Device Installation Diagram.....................................................................................................................19
3.2 Checking Unpacked NVR........................................................................................................................20
3.3 HDD Installation.......................................................................................................................................20
3.3.1 N41C1P/N41C2P................................................................................................................................20
3.4 CD-ROM Installation................................................................................................................................23
3.5 Connection Sample..................................................................................................................................27
3.5.1 N41C1P/N41C2P................................................................................................................................27
3.5.2 N42C1P/N42C2P/N42C3P/N52B5P/N54A4P/N54B3P/N54B5N ............................................28
3.5.3 N42C1P/N42C2P/N42C3P/N52B5P/N54A4P/N54B3P/N54B5N ............................................29

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4 Starting the Device ...........................................................................................................................................30
5 Local Operations ................................................................................................................................................31
5.1 Initialization ................................................................................................................................................31
5.2 Startup Wizard..........................................................................................................................................34
5.3 Login...........................................................................................................................................................39
5.4 Main Menu ................................................................................................................................................ 41
5.5 Quick Operation Bar ................................................................................................................................43
5.6 Live View....................................................................................................................................................44
5.6.1 Live Page............................................................................................................................................45
5.6.2 Navigation bar .................................................................................................................................45
5.6.3 Live View Control Bar .....................................................................................................................46
5.6.3.1 Instant Playback ......................................................................................................................47
5.6.3.2 Digital Zoom............................................................................................................................48
5.6.3.3 Instant Backup ........................................................................................................................49
5.6.3.4 Manual Snapshot....................................................................................................................49
5.6.3.5 Two-way Talk ..........................................................................................................................49
5.6.3.6 Stream Switch .........................................................................................................................49
5.6.3.7 Picture Search..........................................................................................................................50
5.6.3.8 Quick Pick .................................................................................................................................51
5.6.4 Shortcut Menu.................................................................................................................................53
5.6.5 Analytics+ Live View Mode ...........................................................................................................56
5.6.6 Split Tracking ...................................................................................................................................58
5.6.7 PTZ .....................................................................................................................................................60
5.6.7.1 PTZ Settings .............................................................................................................................60
5.6.7.2 PTZ Control..............................................................................................................................62
5.6.7.3 Configuring PTZ Functions ...................................................................................................64
5.6.7.3.1 Configuring Presets........................................................................................................64
5.6.7.3.2 Configuring Tours..........................................................................................................65
5.6.7.3.3 Configuring Patterns.....................................................................................................65
5.6.7.3.4 Configuring AutoScan ..................................................................................................66
5.6.7.4 Using PTZ Functions ..............................................................................................................67
5.6.7.4.1 Presets..............................................................................................................................67
5.6.7.4.2 Tours ................................................................................................................................67
5.6.7.4.3 Patterns ...........................................................................................................................67
5.6.7.4.4 AutoScan.........................................................................................................................67
5.6.7.4.5 Calling AutoPan .............................................................................................................68

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5.6.7.4.6 Auxiliary Button .............................................................................................................68
5.6.8 Wireless Pairing ...............................................................................................................................68
5.6.9 Sequence...........................................................................................................................................69
5.6.10 Fisheye .............................................................................................................................................72
5.6.10.1 Fisheye De-warp on Live View Interface ...........................................................................72
5.6.10.2 Fisheye De-warp During Playback.....................................................................................74
5.6.11 Temperature Monitoring ..............................................................................................................74
5.6.12 Shortcut Menu to Add Camera ...................................................................................................75
5.6.13 Smart Tracking ...............................................................................................................................76
5.7 Camera .......................................................................................................................................................76
5.7.1 Initializing Remote Devices............................................................................................................76
5.7.2 Adding Remote Devices..................................................................................................................81
5.7.2.1 Adding Cameras from Search................................................................................................81
5.7.2.2 Adding Cameras Manually....................................................................................................83
5.7.2.3 Importing Cameras.................................................................................................................85
5.7.3 Changing IP Address of Remote Device......................................................................................86
5.7.3.1 Changing IP Address of Connected Remote Device.........................................................87
5.7.3.2 Changing IP Address of Unconnected Cameras ...............................................................87
5.7.4 Configuring Image Settings ..........................................................................................................87
5.7.5 Configuring Overlay Settings.........................................................................................................91
5.7.5.1 Overlay.......................................................................................................................................91
5.7.5.2 Privacy Masking.......................................................................................................................91
5.7.6 Configuring Encoding Settings.....................................................................................................92
5.7.6.1 Configuring Audio and Video Encoding Settings .............................................................92
5.7.6.2 Snapshot ..................................................................................................................................95
5.7.7 Modifying Channel Name..............................................................................................................97
5.7.8 Checking the PoE Status ................................................................................................................97
5.7.9 Updating Remote Devices .............................................................................................................98
5.7.10 Viewing Remote Device Information .........................................................................................99
5.7.10.1 Device Status..........................................................................................................................99
5.7.10.2 Firmware............................................................................................................................... 100
5.8 Recording Management ........................................................................................................................101
5.8.1 Recording Schedule........................................................................................................................101
5.8.1.1 Configuring Video Recording Schedule .............................................................................101
5.8.1.2 Configuring Snapshot Schedule......................................................................................... 106
5.8.1.3 Configuring Recording Mode............................................................................................. 107

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5.8.2 Search and Playback ..................................................................................................................... 109
5.8.2.1 Search Page............................................................................................................................ 109
5.8.2.2 Playback ...................................................................................................................................111
5.8.2.3 Smart Search Playback .........................................................................................................114
5.8.2.4 Clipping Videos......................................................................................................................114
5.8.2.5 Backing Up.............................................................................................................................. 115
5.8.2.6 File List.....................................................................................................................................116
5.8.2.7 Tag Playback...........................................................................................................................116
5.8.3 Recording Information..................................................................................................................117
5.9 Analytics+.................................................................................................................................................118
5.9.1 Overview...........................................................................................................................................118
5.9.2 Smart Plan........................................................................................................................................119
5.9.3 Face Detection ............................................................................................................................... 120
5.9.3.1 Enabling Smart Plan ............................................................................................................. 120
5.9.3.2 Configuring Face Detection................................................................................................ 120
5.9.3.3 Analytics+ Search (Face Detection)................................................................................... 122
5.9.4 Face & Body Detection................................................................................................................. 124
5.9.4.1 Enabling Smart Plan ............................................................................................................. 124
5.9.4.2 Configuring Face & Body Detection ................................................................................. 124
5.9.4.3 Analytics+ Search (Face & Body Detection) .................................................................... 125
5.9.5 Face Detection+............................................................................................................................. 125
5.9.5.1 Enabling Smart Plan ............................................................................................................. 126
5.9.5.2 Creating Face Database....................................................................................................... 126
5.9.5.2.1 Creating Local Face Databases................................................................................... 126
5.9.5.2.2 Creating Remote Face Databases ............................................................................. 127
5.9.5.2.3 Creating the Passerby Database ............................................................................... 127
5.9.5.3 Adding Images to Face Database...................................................................................... 128
5.9.5.3.1 Adding Face Images One by One.............................................................................. 128
5.9.5.3.2 Adding Face Images in Batches .................................................................................131
5.9.5.4 Configuring Face Detection+............................................................................................. 132
5.9.5.4.1 Configuring Analytics+ by recorder ......................................................................... 132
5.9.5.4.2 Configuring Analytics+ by camera........................................................................... 134
5.9.5.5 Analytics+ Search (Face Detection+)................................................................................ 135
5.9.5.5.1 Search by Attributes .................................................................................................... 135
5.9.5.5.2 Search by Image .......................................................................................................... 137
5.9.5.5.3 Report Query................................................................................................................ 138

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5.9.6 IVS .................................................................................................................................................... 139
5.9.6.1 Enabling Smart Plan ............................................................................................................. 139
5.9.6.2 Configuring IVS..................................................................................................................... 140
5.9.6.2.1 Tripwire .......................................................................................................................... 140
5.9.6.2.2 Intrusion ........................................................................................................................ 142
5.9.6.2.3 Abandoned Object Detection.................................................................................... 145
5.9.6.2.4 Fast Moving .................................................................................................................. 148
5.9.6.2.5 Parking............................................................................................................................151
5.9.6.2.6 Crowd Gathering.......................................................................................................... 154
5.9.6.2.7 Missing Object Detection........................................................................................... 157
5.9.6.2.8 Loitering Detection...................................................................................................... 160
5.9.6.3 Analytics+ Search (IVS) ....................................................................................................... 163
5.9.7 Stereo Analysis............................................................................................................................... 164
5.9.7.1 Enabling Smart Plan.............................................................................................................. 165
5.9.7.2 Configuring Stereo Analysis ............................................................................................... 165
5.9.7.2.1 People Approach Detection ....................................................................................... 165
5.9.7.2.2 Fall Detection................................................................................................................ 166
5.9.7.2.3 Violence Detection ...................................................................................................... 168
5.9.7.2.4 People No. Exception Detection ............................................................................... 169
5.9.7.2.5 People Stay Detection................................................................................................. 170
5.9.7.3 Analytics+ Search (Stereo Analysis)...................................................................................171
5.9.8 Video Metadata ............................................................................................................................. 172
5.9.8.1 Enabling Smart Plan ............................................................................................................. 173
5.9.8.2 Configuring Video Metadata.............................................................................................. 173
5.9.8.3 Analytics+ Search (Video Metadata) ................................................................................ 175
5.9.8.3.1 Human Detection......................................................................................................... 175
5.9.8.3.2 Motor Vehicle Detection ............................................................................................ 176
5.9.8.3.3 Non-motor Vehicle Detection................................................................................... 178
5.9.8.3.4 Report Query................................................................................................................ 179
5.9.9 ANPR................................................................................................................................................ 180
5.9.9.1 Adding Vehicle Blocklist and Allowlist...............................................................................181
5.9.9.2 Configuring ANPR................................................................................................................ 182
5.9.9.3 Analytics+ Search (ANPR)................................................................................................... 183
5.9.10 Crowd Distribution ...................................................................................................................... 183
5.9.10.1 Enabling Smart Plan............................................................................................................ 183
5.9.10.2 Configuring Crowd Distribution....................................................................................... 183

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5.9.10.3 Report Query ....................................................................................................................... 184
5.9.11 People Counting........................................................................................................................... 185
5.9.11.1 Enabling Smart Plan ............................................................................................................ 185
5.9.11.2 Configuring People Counting ........................................................................................... 185
5.9.11.3 Configuring In Area No. ..................................................................................................... 187
5.9.11.4 Queuing................................................................................................................................. 188
5.9.11.5 Report Query........................................................................................................................ 189
5.9.12 Heat Map....................................................................................................................................... 189
5.9.12.1 Enabling Smart Plan............................................................................................................ 190
5.9.12.2 Configuring Heat map ....................................................................................................... 190
5.9.12.3 Report Query ........................................................................................................................191
5.9.12.3.1 General ..........................................................................................................................191
5.9.12.3.2 Fisheye ......................................................................................................................... 192
5.9.13 SMD................................................................................................................................................ 192
5.9.13.1 Enabling Smart Plan............................................................................................................ 192
5.9.13.2 Configuring SMD ................................................................................................................ 192
5.9.13.3 Analytics+ Search (SMD)................................................................................................... 195
5.9.14 Vehicle Density............................................................................................................................. 195
5.9.14.1 Enabling Smart Plan............................................................................................................ 195
5.9.14.2 Configuring Vehicle Density ............................................................................................. 196
5.9.14.3 Report Query ....................................................................................................................... 196
5.9.15 Main-sub Tracking....................................................................................................................... 198
5.9.16 Video Quality Analytics............................................................................................................... 199
5.9.16.1 Configuring Video Quality Analytics................................................................................200
5.9.16.2 Analytics List........................................................................................................................202
5.9.17 Entries Frequency.........................................................................................................................203
5.10 Alarm Settings.......................................................................................................................................204
5.10.1 Alarm Information........................................................................................................................204
5.10.2 Alarm Status .................................................................................................................................205
5.10.3 Alarm Input...................................................................................................................................206
5.10.4 Alarm Output................................................................................................................................207
5.10.5 Video Detection ...........................................................................................................................208
5.10.5.1 Motion Detection ................................................................................................................209
5.10.5.2 Video Loss ............................................................................................................................209
5.10.5.3 Video Tampering ................................................................................................................ 210
5.10.5.4 Scene Change.......................................................................................................................211

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5.10.5.5 PIR Alarm.............................................................................................................................. 212
5.10.6 Audio Detection........................................................................................................................... 214
5.10.7 Thermal Alarm.............................................................................................................................. 214
5.10.8 Exception....................................................................................................................................... 215
5.10.9 Disarming...................................................................................................................................... 217
5.11 Network .................................................................................................................................................. 218
5.11.1 TCP/IP.............................................................................................................................................. 218
5.11.2 Routing Table................................................................................................................................222
5.11.3 Port .................................................................................................................................................222
5.11.4 External Wi-Fi................................................................................................................................224
5.11.5 Wi-Fi AP .........................................................................................................................................225
5.11.5.1 General Settings ...................................................................................................................225
5.11.5.2 Advanced Settings...............................................................................................................227
5.11.8 Repeater.........................................................................................................................................228
5.11.9 PPPoE.............................................................................................................................................. 231
5.11.10 DDNS.............................................................................................................................................232
5.11.11 UPnP ..............................................................................................................................................233
5.11.11.1 Configuring Router.............................................................................................................233
5.11.11.2 Configuring UPnP...............................................................................................................233
5.11.12 Email..............................................................................................................................................235
5.11.13 SNMP ............................................................................................................................................237
5.11.14 Multicast.......................................................................................................................................239
5.11.15 Alarm Center................................................................................................................................240
5.11.16 Register......................................................................................................................................... 241
5.11.17 Switch............................................................................................................................................242
5.11.18 P2P.................................................................................................................................................244
5.12 Storage ...................................................................................................................................................245
5.12.1 Basic................................................................................................................................................245
5.12.2 Disk Manager................................................................................................................................246
5.12.3 RAnalytics+D ................................................................................................................................247
5.12.3.1 Creating RAnalytics+D .......................................................................................................248
5.12.3.2 Viewing RAnalytics+D Information .................................................................................250
5.12.3.3 Creating Hot Spare Disk ....................................................................................................250
5.12.4 Disk Group .................................................................................................................................... 251
5.12.5 Disk Quota ....................................................................................................................................252
5.12.6 Disk Check.....................................................................................................................................253

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5.12.6.1 Manual Check.......................................................................................................................253
5.12.6.2 Detection Report.................................................................................................................254
5.12.6.3 Disk Health Monitoring .....................................................................................................256
5.12.7 Record Estimate ...........................................................................................................................257
5.12.7.1 Calculating Recording Time...............................................................................................259
5.12.7.2 Calculating HDD Capacity for Storage............................................................................259
5.12.8 FTP..................................................................................................................................................260
5.12.9 iSCSI ...............................................................................................................................................262
5.13 Account ..................................................................................................................................................263
5.13.1 Group..............................................................................................................................................264
5.13.2 User ................................................................................................................................................265
5.13.2.1 Adding User..........................................................................................................................265
5.13.2.2 Changing Password............................................................................................................267
5.13.3 Resetting Password .....................................................................................................................268
5.13.3.1 Enabling Password Reset ...................................................................................................268
5.13.3.2 Resetting Password on Local Interface ...........................................................................269
5.13.4 ONVIF User ...................................................................................................................................274
5.14 Security...................................................................................................................................................275
5.14.1 Security Status ..............................................................................................................................275
5.14.2 System Service..............................................................................................................................277
5.14.2.1 Basic Services .......................................................................................................................277
5.14.2.2 802.1x ....................................................................................................................................279
5.14.2.3 HTTPS.................................................................................................................................... 281
5.14.3 Attack Defense............................................................................................................................. 281
5.14.3.1 Firewall .................................................................................................................................. 281
5.14.3.2 Account Lockout .................................................................................................................283
5.14.3.3 Anti-DoS Attack ..................................................................................................................283
5.14.3.4 Sync Time-Allowlist............................................................................................................284
5.14.4 CA Certificate................................................................................................................................285
5.14.4.1 Device Certificate ................................................................................................................285
5.14.4.2 Trusted CA Certificate........................................................................................................288
5.14.5 Audio/Video Encryption.............................................................................................................288
5.14.6 Security Warning .........................................................................................................................290
5.14.6.1 Security Exception...............................................................................................................290
5.14.6.2 Illegal Login .........................................................................................................................290
5.15 System .................................................................................................................................................... 291

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5.15.1 General Settings ........................................................................................................................... 291
5.15.1.1 General................................................................................................................................... 291
5.15.1.2 Date and Time......................................................................................................................293
5.15.1.3 Holiday ..................................................................................................................................295
5.15.2 Serial Port......................................................................................................................................297
5.16 Output and Display ..............................................................................................................................298
5.16.1 Display............................................................................................................................................298
5.16.2 Tour................................................................................................................................................300
5.16.3 Custom Layout .............................................................................................................................302
5.17 POS..........................................................................................................................................................305
5.17.1 Settings...........................................................................................................................................305
5.17.1.1 Privacy Setup.........................................................................................................................307
5.17.1.2 Connection Mode................................................................................................................307
5.17.2 Search.............................................................................................................................................308
5.18 Audio ......................................................................................................................................................308
5.18.1 File Management..........................................................................................................................309
5.18.2 Audio Play..................................................................................................................................... 310
5.18.3 Broadcast........................................................................................................................................311
5.19 Operation and Maintenance............................................................................................................... 313
5.19.1 Log .................................................................................................................................................. 313
5.19.2 System ........................................................................................................................................... 314
5.19.2.1 System Version .................................................................................................................... 314
5.19.2.2 Analytics+ Algorithm Version........................................................................................... 315
5.19.2.3 HDD Info............................................................................................................................... 315
5.19.2.4 BPS......................................................................................................................................... 316
5.19.2.5 Device Status ....................................................................................................................... 316
5.19.3 Network......................................................................................................................................... 317
5.19.3.1 Online User ........................................................................................................................... 317
5.19.3.2 Network Load ...................................................................................................................... 318
5.19.3.3 Network Test ....................................................................................................................... 319
5.19.4 Maintenance and Management................................................................................................320
5.19.4.1 Device Maintenance............................................................................................................320
5.19.4.2 Exporting System Settings ................................................................................................ 321
5.19.4.3 Restoring Defaults..............................................................................................................323
5.19.4.3.1 Restoring Defaults on the Local Interface..............................................................323
5.19.4.3.2 Resetting Device through the Reset Button .........................................................324

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5.19.4.4 System Update....................................................................................................................325
5.19.4.4.1 Upgrading File.............................................................................................................325
5.19.4.4.2 Online Upgrade..........................................................................................................326
5.19.4.4.3 Uboot Upgrading.......................................................................................................327
5.19.4.5 Intelligent Diagnosis ..........................................................................................................327
5.20 USB Device Auto Pop-up....................................................................................................................328
5.21 Shutdown...............................................................................................................................................328
6 Web Operation................................................................................................................................................332
6.1 Network Connection ..............................................................................................................................332
6.2 Web Login ...............................................................................................................................................332
6.3 Web Main Menu.....................................................................................................................................333
6.4 Cluster Service ........................................................................................................................................335
6.4.1 Configuring Cluster IP...................................................................................................................336
6.4.2 Main Device....................................................................................................................................336
6.4.3 Sub Device......................................................................................................................................337
6.4.4 Transferring Videos.......................................................................................................................338
6.4.5 Configuring Cluster Control ........................................................................................................338
6.4.5.1 Cluster Control.......................................................................................................................338
6.4.5.2 Arbitrage IP ...........................................................................................................................339
6.4.6 Cluster Log......................................................................................................................................339
7 Glossary.............................................................................................................................................................340
8 FAQ.................................................................................................................................................................... 341
Appendix 1 HDD Capacity Calculation............................................................................................................346
Appendix 2 Mouse Operation..........................................................................................................................347
Appendix 3 Remote Control.............................................................................................................................348
Appendix 4 Compatible Network Camera List.............................................................................................. 351
Appendix 5 Cybersecurity Recommendations..............................................................................................358

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1 Introduction
1.1 Overview
The NVR is a high performance network video recorder. This product supports local live view,
multiple-window display, recorded file local storage, remote control and mouse shortcut
menu operation, and remote management and control function.
This 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 security network through 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 featured by simple connection, low-cost, low
maintenance work.
1.2 Features
Analytics+ Functions
Analytics+ functions are available on select models and vary with models.
●Face detection. The system can detect the faces are on the video image.
●Face Detection+. The system can compare the detected faces with the images in the face
database in real time.
●Human body detection. The system activates alarm actions once human body is detected.
●People counting. The system can effectively count the number of people and flow
direction.
●Heat map. The system can monitor the active objects in a specific area.
●Automatic number plate recognition (ANPR). The system can effectively monitor the
passing vehicles.
Smart Playback
This function is available on select models.
●IVS playback. It can screen out and replay the records meeting the set rules.
●Face detection playback. It can screen out and replay the records with human faces.
●Face Detection+ playback. It can compare the face information in the video with the
information in the database and replay the corresponding records.

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●ANPR playback. It can screen out the record with a specific car plate number or all the
records with car plate numbers.
●Human body detection playback. It can screen out and replay the records with specific
human bodies.
●Smart search. It includes smart functions such as searching by attribute and searching by
image to enable users to get target records quickly.
Real-Time Security
●VGA, HDMI port. Connect to monitor to realize real-time security. Some series support
TV/VGA/HDMI output at the same time.
●Shortcut menu for preview.
●Support multiple popular PTZ decoder control protocols. Support preset, tour and
pattern.
Playback
●Support independent real-time recording for each channel. At the same time it supports
functions such as smart search, forward play, network monitor, record search and
download.
●Support various playback modes: slow play, fast play, backward play and frame-by-frame
play.
●Support time title overlay so that you can view the event accurate occurred time.
●Support specified zone enlargement.
User Management
Users can be added to user groups for management. Each group has a set of permissions
that can be individually edited.
Storage
●With corresponding settings (such as alarm settings and schedule settings), you can back
up related audio/video data in the network video recorder.
●You can take records via the web and the record files are saved on the PC in which the
client locates.
Alarm
●Respond to external alarm simultaneously (within 200 ms). Based on user’s pre-defined
relay settings, the system can process the alarm input correctly and sends user screen or
voice prompts (supporting pre-recorded audio).
●Support settings of the central alarm server, so that the system can automatically notify
users of the alarm information. Alarm input can be derived from various connected
peripheral devices.
●Alert you of alarm information via email.

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Network Security
●Send audio/video data compressed by IPC or NVS to client-ends through the network,
and then the data will be decompressed and displayed.
●Support max 128 connections at the same time.
●Transmit audio/video data by protocols such as HTTP, TCP, UDP, MULTICAST and
RTP/RTCP.
●Transmit some alarm data or alarm info by SNMP.
●Support web access in WAN/LAN.
Window Split
Adopt video compression and digital processing to display several windows in one monitor.
Support 1/4/8/9/16/25/36 window split in preview and 1/4/9/16 window split in playback.
Record
Support regular record, motion record, alarm record and smart record. Save the recorded
files in the HDD, USB device, client-end PC or network storage server and you can search or
playback the saved files at the local-end or via the Web/USB devices.
Backup
Support network backup and USB record backup. You can back up the record files in devices
such as network storage server, peripheral USB 2.0 device and burner.
Network Management
●Supervise NVR configuration and control power via Ethernet.
●Support web management.
Peripheral Equipment Management
●Support peripheral device control and you can freely set the control protocol and
connection port.
●Support transparent data transmission such as RS-232 and RS-485.
Auxiliary
●Support switch between NTSC and PAL.
●Support real-time display of system resources information and running status.
●Support log record.
●Local GUI output. Shortcut menu operation with the mouse.
●IR control function (for some series only). Shortcut menu operation with remote control.
●Support to play the video/audio files from remote IPC or NVS.

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2 Front Panel and Rear Panel
The following front panel and rear panel figures are for reference only.
2.1 Front Panel
2.1.1 N41C1P/N41C2P
The figure is for reference only.
The N41C1P/N41C2P front panel is shown as below.
Figure 2-1 Front panel
The N41C1P/N41C2P front panel is shown as below.