Dahua NVR41 series User manual

Dahua Network Video Recorder
User's Manual
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD. V4.5.1

User's Manual
I
Foreword
General
This manual introduces the functions and operations of the NVR device (hereinafter referred to
as "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.
Provides methods to help you solve a problem or save you
time.
Provides additional information as the emphasis and
supplement to the text.
Revision History
Version
Revision Content
Release Time
V4.5.1
●Added four models.
●Deleted password resetting on web.
March 2020
V4.5.0
Updated to the new baseline version.
February 2020
V4.4.9
Add Wi-Fi module and repeater.
December 2019
V4.4.8
Add new models and security center.
November 2019
V4.4.7
Add new models.
September 2019
V4.4.6
●New UI interfaces and menu tree.
●New AI functions.
July 2019
V4.4.5
Deletes specifications.
June 2019
V4.4.4
Add models: Cooper 1U (S3), Cooper 1U
(S3) with 4 PoE Ports, Compact 1U (S3)
with 8 PoE Ports Series.
August 2018
V4.4.3
●Add Compact 1U 4K(S2) with Wireless
and Smart 1U 4K(S2) with Wireless.
Add Wi-Fi AP and Repeater functions.
●4K 1.5U (S2) with 24 PoE ports: Add
altitude 5,000 meters.
July 2018

User's Manual
II
Version
Revision Content
Release Time
V4.4.2
●Add GDPR information.
●Add FCC information.
●Update HDD installation.
June 2018
V4.3.2
Add Privacy Protection Notice and update
About the Manual.
May 2018
V4.3.1
Add new models and update relevant
information.
April 2018
V4.3.0
Delete old models and add new models.
Update relevant information.
October 2017
V4.2.0
Add models.
September 2017
V4.1.0
●Update POS.
●Modify pictures with QR code and SN.
September 2017
V4.0.0
●Add cloud update module.
●Baseline switch and update screen
interfaces.
August 2017
V3.0.0
●Add new modules.
●Baseline switch and update screen
interfaces.
●Add new models.
May 2016
V1.0.0
First Release.
-
About the Manual
●The manual is for reference only. If there is inconsistency between the manual and the
actual product, the actual product shall prevail.
●We are not liable for any loss caused by the operations that do not comply with the manual.
●The manual would be updated according to the latest laws and regulations of related
regions. For detailed information, see the paper manual, CD-ROM, QR code or our official
website. If there is inconsistency between paper manual and the electronic version, the
electronic version shall prevail.
●All the designs and software are subject to change without prior written notice. The product
updates might cause some differences between the actual product and the manual. Please
contact the customer service for the latest program and supplementary documentation.
●There still might be deviation in technical data, functions and operations description, or
errors in print. If there is any doubt or dispute, please refer to our final explanation.
●Upgrade the reader software or try other mainstream reader software if the manual (in PDF
format) cannot be opened.
●All trademarks, registered trademarks and the company names in the manual are the
properties of their respective owners.
●Please visit our website, contact the supplier or customer service if there is any problem
occurred when using the device.
●If there is any uncertainty or controversy, please refer to our final explanation.

User's Manual
III
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
●Install the PoE front-end device indoors.
●The device does not support wall mount.
●Do not place and install the device in an area exposed to direct sunlight or near heat
generating device.
●Do not install the device in a humid, dusty or fuliginous area.
●Keep its horizontal installation, or install it at stable places, and prevent it from falling.
●Do not drip or splash liquids onto the device; do not put on the device anything filled with
liquids, in order to prevent liquids from flowing into the device.
●Install the device at well-ventilated places; do not block its ventilation opening.
●Use the device only within rated input and output range.
●Do not dismantle the device arbitrarily.
●Transport, use and store the device within allowed humidity and temperature range.
Power Requirement
●Make sure to use the designated battery type. Otherwise there may be explosion risk.
●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.
●Make sure to dispose the exhausted batteries according to the instructions.
●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.

User's Manual
IV
Table of Contents
Foreword.................................................................................................................................................... I
Important Safeguards and Warnings.................................................................................................... III
1 Features.................................................................................................................................................. 1
1.1 Overview ........................................................................................................................................ 1
1.2 Features ......................................................................................................................................... 1
2 Front Panel and Rear Panel ................................................................................................................. 4
2.1 Front Panel..................................................................................................................................... 4
2.1.1
NVR41/41-P/41-W/41-4KS2/41-P-4KS2/21-S2/21-P-S2/21-8P-S2/41-4KS2/41-P-4KS2/41-8P
-4KS2/21-4KS2/21-P-4KS2/21-8P-4KS2 Series ...................................................................... 4
2.1.2 NVR41H/41H-P/41H-8P Series............................................................................................. 5
2.1.3 NVR41HS-W-S2 Series......................................................................................................... 5
2.1.4 NVR41-8P Series................................................................................................................... 6
2.1.5 NVR41-8P-4KS2/L Series ..................................................................................................... 7
2.1.6 NVR42/42-P/42-8P Series..................................................................................................... 8
2.1.7
NVR11HS-S3H/11HS-P-S3H/11HS-8P-S3H/21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-4KS2/4
1HS-P-4KS2/41HS-8P-4KS2/21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2 Series ................ 10
2.1.8
NVR/22-S2/22-P-S2/22-8P-S2/42-16P/42N/52-4KS2/52-8P-4KS2/52-16P-4KS2/42-4KS2/42-
P-4KS2/42-8P-4KS2/42-16P-4KS2/5224-24P-4KS2/54-4KS2/54-16P-4KS2/44-4KS2/44-16P
-4KS2/5424-24P-4KS2/58-4KS2/S258-16P-4KS2/48-4KS2/48-16P-4KS2/22-4KS2/22-P-4KS
2/22-8P-4KS2/52-8P-4KS2E/52-16P-4KS2E/54-16P-4KS2E/58-16P-4KS2E Series........... 10
2.1.9 NVR44/44-8P/44-16P Series............................................................................................... 11
2.1.10 NVR48/48-16P Series........................................................................................................ 13
2.1.11 NVR42V-8P Series ............................................................................................................ 16
2.1.12 NVR21-W-4KS2 Series...................................................................................................... 17
2.1.13 NVR21HS-W-4KS2 Series................................................................................................. 18
2.1.14 NVR11 HC-S3 Series......................................................................................................... 18
2.1.15 NVR1104HS-W/NVR1108HS-W Series............................................................................ 19
2.2 Rear Panel.................................................................................................................................... 20
2.2.1 NVR41/41-P/41-8P/41-W Series ......................................................................................... 20
2.2.2 NVR21-S2/21-P-S2/21-8P-S2/21-4KS2/21-P-4KS2/21-8P-4KS2 Series........................... 22
2.2.3 NVR41H/41H-P/41H-8P Series........................................................................................... 23
2.2.4
NVR11HS-S3H/11HS-P-S3H/11HS-8P-S3H/21HS-S2/21HS-P-S2/21HS-8P-S2/21HS-4KS2/2
1HS-P-4KS2/21HS-8P-4KS2 Series....................................................................................... 25
2.2.5 NVR41HS-W-S2 Series....................................................................................................... 26
2.2.6 NVR22-S2/22-P-S2/22-8P-S2/22-4KS2/22-P-4KS2/22-8P-4KS2 Series........................... 28
2.2.7 NVR42/42N/42-P/42-8P/42-16P Series............................................................................... 29

User's Manual
V
2.2.8 NVR52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-8P-4KS2E/52-16P-4KS2E
Series....................................................................................................................................... 31
2.2.9 NVR44/44-8P/44-16P Series............................................................................................... 34
2.2.10 NVR54-4KS2/58-4KS2/54-16P-4KS2/58-16P-4KS2/5424-24P-4KS2/5816P-4KS2E
Series....................................................................................................................................... 36
2.2.11 NVR48/48-16P Series........................................................................................................ 39
2.2.12 NVR42V-8P Series ............................................................................................................ 41
2.2.13 NVR41-4KS2/41-P-4KS2/41-8P-4KS2.............................................................................. 42
2.2.14 NVR41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2 Series................................................... 44
2.2.15 NVR42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2 Series........................................... 45
2.2.16 NVR44-4KS2/44-16P-4KS2 Series................................................................................... 47
2.2.17 NVR48-4KS2/48-16P-4KS2 Series................................................................................... 49
2.2.18 NVR21-W-4KS2 Series...................................................................................................... 51
2.2.19 NVR21HS-W-4KS2 Series................................................................................................. 53
2.2.20 NVR11 HC-S3 Series......................................................................................................... 54
2.2.21 NVR1104HS-W/NVR1108HS-W Series............................................................................ 55
2.3 Alarm Connection....................................................................................................................... 56
2.3.1 Alarm Port............................................................................................................................ 56
2.3.2 Alarm input port.................................................................................................................. 57
2.3.3 Alarm input and output port.............................................................................................. 58
2.3.4 Alarm relay specifications................................................................................................. 58
2.4 Two-way talk................................................................................................................................ 59
2.4.1 Device-end to PC-end......................................................................................................... 59
2.4.2 PC-end to the device-end................................................................................................... 60
2.5 Mouse Operation......................................................................................................................... 60
2.6 Remote Control........................................................................................................................... 61
3 Device Installation............................................................................................................................... 64
3.1 Device Installation Diagrams..................................................................................................... 64
3.2 Check Unpacked NVR ................................................................................................................ 65
3.3 About Front Panel and Rear Panel............................................................................................ 65
3.4 HDD Installation .......................................................................................................................... 65
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-4KS2/21-4KS
2/21-P-4KS2/21-8P-4KS2/21-W-4KS2 Series........................................................................ 65
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-4KS2/21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2/21HS-W-4KS2 Series.. 67
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-S2/
22-P-S2/22-8P-S2/42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2/5224-24P-4KS2/22-4KS2
/22-P-4KS2/22-8P-4KS2/52-8P-4KS2E/52-16P-4KS2E Series............................................. 69
3.4.4
NVR44/44-8P/44-16P/54-4KS2/54-16P-4KS2/44-4KS2/44-16P-4KS2/5424-24P-4KS2/54-16

User's Manual
VI
P-4KS2E Series....................................................................................................................... 70
3.4.5 NVR48/48-16P/58-4KS2/58-16P-4KS2/48-4KS2/48-16P-4KS2/52-16P-4KS2E Series ... 71
3.4.6 NVR42V-8P Series .............................................................................................................. 73
3.5 CD-ROM Installation ................................................................................................................... 74
3.6 Connection Sample..................................................................................................................... 78
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-4KS2/21-4KS
2/21-P-4KS2/21-8P-4KS2 Series............................................................................................ 78
3.6.2 NVR41H/41H-P/41H-8P Series........................................................................................... 79
3.6.3 NVR41HS-W-S2/21-W-4KS2/21HS-W-4KS2 Series.......................................................... 80
3.6.4
NVR21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2/21HS-4K
S2/21HS-P-4KS2/21HS-8P-4KS2 Series................................................................................ 81
3.6.5 NVR22-S2/22-P-S2/22-8P-S2/22-4KS2/22-P-4KS2/22-8P-4KS2 Series........................... 82
3.6.6 NVR42N Series.................................................................................................................... 83
3.6.7
NVR42/42-P/42-8P/42-16P/52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-8P-4KS
2E/52-16P-4KS2E Series ........................................................................................................ 83
3.6.8 NVR42-8P-4K/42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2 Series ............................ 84
3.6.9
NVR54-4KS2/54-16P-4KS2/58-4KS2/58-16P-4KS2/5424-24P-4KS2/54-16P-4KS2E/5816P-4
KS2E Series............................................................................................................................. 85
3.6.10 NVR44/44-8P/44-16P/44-4KS2/44-16P-4KS2 Series....................................................... 86
3.6.11 NVR48/48-16P/48-4KS2/48-16P-4KS2 Series ................................................................. 87
3.6.12 NVR42V-8P Series ............................................................................................................ 88
4 Local Basic Operation........................................................................................................................ 90
4.1 Getting Started............................................................................................................................ 90
4.1.1 Booting up........................................................................................................................... 90
4.1.2 Device Initialization ............................................................................................................ 90
4.1.3 Resetting Password ........................................................................................................... 93
4.1.3.1 Enabling Password Reset Function......................................................................... 94
4.1.3.2 Resetting Password on Local Interface................................................................... 95
4.1.3.3 Reset Button ............................................................................................................. 101
4.1.4 Quick Settings................................................................................................................... 102
4.1.4.1 General ...................................................................................................................... 102
4.1.4.1.1 General.............................................................................................................. 102
4.1.4.1.2 Date and Time................................................................................................... 104
4.1.4.1.3 Holiday............................................................................................................... 105
4.1.4.2 Basic Networking Settings...................................................................................... 107
4.1.4.3 P2P............................................................................................................................. 111
4.1.4.3.1 Local Operation................................................................................................ 111
4.1.4.3.2 Client Operation ............................................................................................... 112

User's Manual
VII
4.1.4.4 Adding Camera......................................................................................................... 116
4.1.4.5 RAID Manager........................................................................................................... 121
4.1.4.6 Schedule.................................................................................................................... 122
4.1.4.6.1 Recording Schedule......................................................................................... 123
4.1.4.6.2 Snapshot Schedule.......................................................................................... 129
4.1.4.6.3 Record Control ................................................................................................. 130
4.2 Camera....................................................................................................................................... 132
4.2.1 Connection........................................................................................................................ 132
4.2.1.1 Changing IP address................................................................................................ 132
4.2.1.2 Auto Changing H.265............................................................................................... 133
4.2.1.3 IP Export.................................................................................................................... 134
4.2.1.4 IP Import.................................................................................................................... 135
4.2.2 Remote Device Initialization............................................................................................ 136
4.2.3 Shortcut Menu to Add Camera........................................................................................ 141
4.2.4 Image.................................................................................................................................. 142
4.2.5 Video Overlay.................................................................................................................... 144
4.2.5.1 Overlay....................................................................................................................... 144
4.2.5.2 Privacy Masking ....................................................................................................... 145
4.2.6 Encode............................................................................................................................... 146
4.2.6.1 Encode....................................................................................................................... 146
4.2.6.2 Snapshot ................................................................................................................... 149
4.2.7 Channel Name................................................................................................................... 150
4.2.8 Remote Update.................................................................................................................. 151
4.2.9 Remote Device Info .......................................................................................................... 152
4.2.9.1 Device Status............................................................................................................ 152
4.2.9.2 Firmware.................................................................................................................... 153
4.3 Live View.................................................................................................................................... 154
4.3.1 Preview............................................................................................................................... 154
4.3.2 Navigation bar................................................................................................................... 155
4.3.2.1 Channel Info.............................................................................................................. 156
4.3.2.2 USB Management..................................................................................................... 157
4.3.3 Live View Control Interface.............................................................................................. 158
4.3.3.1 Instant Replay........................................................................................................... 159
4.3.3.2 Digital zoom .............................................................................................................. 161
4.3.3.3 Instant backup .......................................................................................................... 162
4.3.3.4 Manual Snapshot...................................................................................................... 162
4.3.3.5 Two-way talk ............................................................................................................. 162
4.3.3.6 Switch bit streams.................................................................................................... 162
4.3.3.7 Right-Click Menu ...................................................................................................... 163

User's Manual
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4.3.4 Wireless Paring................................................................................................................. 164
4.3.5 Sequence........................................................................................................................... 165
4.3.6 Fisheye (Optional)............................................................................................................. 168
4.3.6.1 Fisheye de-warp during preview interface ............................................................ 168
4.3.6.2 Fish eye de-warp during playback.......................................................................... 171
4.3.7 Test Temperature.............................................................................................................. 171
4.3.8 AI Live View Mode............................................................................................................. 172
4.3.9 Quick Operation Bar......................................................................................................... 175
4.4 PTZ.............................................................................................................................................. 177
4.4.1 PTZ Settings...................................................................................................................... 178
4.4.2 PTZ Control ....................................................................................................................... 180
4.4.3 Configuring PTZ Functions ............................................................................................. 182
4.4.3.1 Configuring Presets................................................................................................. 182
4.4.3.2 Configuring Tours .................................................................................................... 182
4.4.3.3 Configuring Patterns................................................................................................ 183
4.4.3.4 Configuring AutoScan ............................................................................................. 184
4.4.4 Calling PTZ Functions...................................................................................................... 185
4.4.4.1 Calling Presets.......................................................................................................... 185
4.4.4.2 Calling Tours............................................................................................................. 185
4.4.4.3 Calling Patterns ........................................................................................................ 185
4.4.4.4 Calling AutoScan...................................................................................................... 185
4.4.4.5 Calling AutoPan........................................................................................................ 185
4.4.4.6 Using Auxiliary Button............................................................................................. 186
4.5 Record File................................................................................................................................. 186
4.6 Playback and Search................................................................................................................ 186
4.6.1 Instant Playback................................................................................................................ 186
4.6.2 Search Interface................................................................................................................ 186
4.6.2.1 Playback Control ...................................................................................................... 189
4.6.2.2 Search Type .............................................................................................................. 191
4.6.2.3 Clip............................................................................................................................. 191
4.6.2.4 Record Backup ......................................................................................................... 191
4.6.3 Smart Search Playback.................................................................................................... 192
4.6.4 Tag Playback..................................................................................................................... 193
4.6.5 Playback Image................................................................................................................. 194
4.6.6 Subperiod Playback ......................................................................................................... 195
4.6.7 File List............................................................................................................................... 195
4.6.8 Other Aux Functions ........................................................................................................ 197
4.6.8.1 Digital Zoom.............................................................................................................. 197
4.6.8.2 Switch Channel......................................................................................................... 197

User's Manual
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4.7 AI................................................................................................................................................. 197
4.7.1 AI Search ........................................................................................................................... 197
4.7.1.1 Face Detection.......................................................................................................... 198
4.7.1.2 Face Recognition...................................................................................................... 200
4.7.1.2.1 Searching by Attributes................................................................................... 200
4.7.1.2.2 Search by Image............................................................................................... 202
4.7.1.3 IVS.............................................................................................................................. 204
4.7.1.4 Stereo Analysis......................................................................................................... 206
4.7.1.4.1 People Approach Detection............................................................................ 206
4.7.1.4.2 Fall Detection.................................................................................................... 206
4.7.1.4.3 People Exception Detection............................................................................ 207
4.7.1.4.4 People Retention Detection ............................................................................ 207
4.7.1.5 Human Body Detection............................................................................................ 208
4.7.1.6 Vehicle Detection...................................................................................................... 209
4.7.1.7 Non-motor Vehicle Detection.................................................................................. 210
4.7.1.8 People Counting....................................................................................................... 212
4.7.1.9 Heat map.................................................................................................................... 213
4.7.1.9.1 General.............................................................................................................. 213
4.7.1.9.2 Fisheye .............................................................................................................. 213
4.7.1.10 SMD.......................................................................................................................... 214
4.7.2 Parameters ........................................................................................................................ 214
4.7.2.1 Smart Plan................................................................................................................. 214
4.7.2.2 Face Detection.......................................................................................................... 217
4.7.2.3 Face Recognition...................................................................................................... 219
4.7.2.4 IVS (General Behavior Analytics) ........................................................................... 223
4.7.2.4.1 Tripwire.............................................................................................................. 225
4.7.2.4.2 Intrusion............................................................................................................ 229
4.7.2.4.3 Abandoned Object Detection.......................................................................... 231
4.7.2.4.4 Fast Moving....................................................................................................... 232
4.7.2.4.5 Crowd Gathering.............................................................................................. 234
4.7.2.4.6 Parking .............................................................................................................. 235
4.7.2.4.7 Missing Object Detection................................................................................ 237
4.7.2.4.8 Loitering Detection........................................................................................... 238
4.7.2.5 Video Structuring ..................................................................................................... 240
4.7.2.6 Crowd Distribution................................................................................................... 241
4.7.2.7 People Counting....................................................................................................... 243
4.7.2.7.1 People Counting............................................................................................... 243
4.7.2.7.2 Queuing............................................................................................................. 246
4.7.2.8 Heat map.................................................................................................................... 248

User's Manual
X
4.7.2.9 ANPR.......................................................................................................................... 250
4.7.2.10 SMD.......................................................................................................................... 252
4.7.3 Database............................................................................................................................ 254
4.7.3.1 Creating Human Face Library................................................................................. 254
4.7.3.1.1 Adding Face Pictures....................................................................................... 256
4.7.3.1.2 Adding One Face Picture ................................................................................ 256
4.7.3.1.3 Adding Face Pictures in Batch....................................................................... 259
4.7.3.2 Black/whitelist........................................................................................................... 260
4.7.3.2.1 Adding B/W List................................................................................................ 260
4.7.3.2.2 Deleting Black/White List................................................................................ 261
4.7.3.2.3 Import/Export Black/whitelist.......................................................................... 262
4.8 Event Manager........................................................................................................................... 262
4.8.1 Alarm Info .......................................................................................................................... 262
4.8.2 Alarm Status...................................................................................................................... 263
4.8.3 Alarm Input........................................................................................................................ 264
4.8.4 Alarm Control.................................................................................................................... 267
4.8.5 Video Detection................................................................................................................. 268
4.8.5.1 Motion Detection ...................................................................................................... 268
4.8.5.1.1 Setting the Motion Detection Region............................................................. 270
4.8.5.1.2 Setting Schedule.............................................................................................. 271
4.8.5.2 Video Tampering ...................................................................................................... 272
4.8.5.3 Video Loss................................................................................................................. 273
4.8.5.4 Scene Change........................................................................................................... 274
4.8.5.5 PIR Alarm................................................................................................................... 275
4.8.6 Audio Detection ................................................................................................................ 276
4.8.7 Thermal Alarm................................................................................................................... 278
4.8.8 Exception........................................................................................................................... 280
4.8.9 Disarming .......................................................................................................................... 284
4.9 POS............................................................................................................................................. 284
4.9.1 Search................................................................................................................................ 284
4.9.2 Settings.............................................................................................................................. 285
4.9.2.1 Privacy Setup............................................................................................................ 287
4.9.2.2 Connection type........................................................................................................ 288
4.10 Operation and Maintenance................................................................................................... 288
4.10.1 Log.................................................................................................................................... 288
4.10.2 System ............................................................................................................................. 290
4.10.2.1 Version..................................................................................................................... 290
4.10.2.2 HDD Info .................................................................................................................. 290
4.10.2.3 BPS........................................................................................................................... 291

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4.10.2.4 Device Status.......................................................................................................... 292
4.10.2.5 HDD Health Detection ............................................................................................ 293
4.10.3 Network............................................................................................................................ 294
4.10.3.1 Online User.............................................................................................................. 294
4.10.3.2 Network Load.......................................................................................................... 295
4.10.3.3 Network Test........................................................................................................... 296
4.10.4 Maintenance and Management ..................................................................................... 297
4.10.4.1 Device Maintenance............................................................................................... 297
4.10.4.2 Exporting System Settings.................................................................................... 298
4.10.4.3 Default...................................................................................................................... 300
The system starts restoring the whole settings.4.10.4.4 System Update............................. 301
4.10.4.4.1 Upgrading File................................................................................................ 301
4.10.4.4.2 Online Upgrade............................................................................................... 303
4.10.4.4.3 Uboot Upgrading............................................................................................ 304
4.11 File Backup.............................................................................................................................. 304
4.12 Network.................................................................................................................................... 305
4.12.1 TCP/IP............................................................................................................................... 305
4.12.2 Port................................................................................................................................... 307
4.12.3 External Wi-Fi.................................................................................................................. 309
4.12.4 Wi-Fi AP ........................................................................................................................... 310
4.12.4.1 General Settings..................................................................................................... 310
4.12.4.2 Advanced Settings................................................................................................. 311
4.12.5 3G/4G................................................................................................................................ 312
4.12.6 Repeater........................................................................................................................... 314
4.12.7 PPPoE .............................................................................................................................. 316
4.12.8 DDNS................................................................................................................................ 317
4.12.9 UPnP.................................................................................................................................318
4.12.9.1 Configuring Router.................................................................................................318
4.12.9.2 Configuration UPnP ............................................................................................... 318
4.12.10 Email............................................................................................................................... 320
4.12.11 SNTMP ........................................................................................................................... 322
4.12.12 Multicast ........................................................................................................................ 324
4.12.13 Alarm Center ................................................................................................................. 325
4.12.14 Register.......................................................................................................................... 326
4.12.15 P2P ................................................................................................................................. 327
4.12.15.1 Mobile APP Operation.......................................................................................... 328
4.13 Storage..................................................................................................................................... 328
4.13.1 Basic.................................................................................................................................329
4.13.2 Schedule.......................................................................................................................... 329

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4.13.3 Disk Manager................................................................................................................... 329
4.13.4 Record Control................................................................................................................ 330
4.13.5 Disk Group....................................................................................................................... 330
4.13.6 Disk Quota....................................................................................................................... 331
4.13.7 Disk Check....................................................................................................................... 332
4.13.7.1 Manual Check.......................................................................................................... 332
4.13.7.2 Detect Report.......................................................................................................... 333
4.13.8 RAID ................................................................................................................................. 335
4.13.8.1 Creating Manager................................................................................................... 336
4.13.8.2 Raid Info .................................................................................................................. 338
4.13.8.3 Hot Spare Disk........................................................................................................ 338
4.13.9 Record Estimate.............................................................................................................. 339
4.13.9.1 Calculating Recording Time.................................................................................. 341
4.13.9.2 Calculating HDD Capacity for Storage................................................................. 341
4.13.10 FTP ................................................................................................................................. 342
4.14 System...................................................................................................................................... 344
4.14.1 General............................................................................................................................. 344
4.14.2 RS232............................................................................................................................... 344
4.15 Security.................................................................................................................................... 345
4.15.1 Security Status................................................................................................................ 345
4.15.2 System Service ............................................................................................................... 347
4.15.2.1 Basic Services ........................................................................................................ 347
4.15.2.2 802.1x....................................................................................................................... 349
4.15.2.3 HTTPS...................................................................................................................... 350
4.15.3 Attack Defense................................................................................................................ 350
4.15.3.1 Firewall .................................................................................................................... 350
4.15.3.2 Account Lockout.................................................................................................... 352
4.15.3.3 Anti-Dos Attack....................................................................................................... 352
4.15.3.4 Sync Time-Whitelist ............................................................................................... 353
4.15.4 CA Certificate.................................................................................................................. 354
4.15.4.1 Device Certificate ................................................................................................... 354
4.15.4.2 Trusted CA Certificate............................................................................................ 356
4.15.5 Audio/Video Encryption................................................................................................. 356
4.15.6 Security Warning ............................................................................................................ 358
4.15.6.1 Security Exception................................................................................................. 358
4.15.6.2 Illegal Login............................................................................................................. 359
4.16 Account.................................................................................................................................... 360
4.16.1 User.................................................................................................................................. 360
4.16.1.1 Add User.................................................................................................................. 360

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4.16.1.2 Modify Password.................................................................................................... 362
4.16.2 Group ............................................................................................................................... 363
4.16.3 Reset Password.............................................................................................................. 365
4.16.4 ONVIF User...................................................................................................................... 365
4.17 Output and Display................................................................................................................. 367
4.17.1 Display ............................................................................................................................. 367
4.17.2 Tour.................................................................................................................................. 368
4.17.3 Customized Display........................................................................................................ 370
4.18 Audio........................................................................................................................................ 373
4.18.1 File Management............................................................................................................. 373
4.18.2 Audio Play ....................................................................................................................... 375
4.18.3 Broadcast ........................................................................................................................ 376
4.19 USB Device Auto Pop-up....................................................................................................... 378
4.20 Shutdown................................................................................................................................. 379
5 Web Operation................................................................................................................................... 383
5.1 Network Connection................................................................................................................. 383
5.2 Web Login.................................................................................................................................. 383
5.3 Web Main Menu......................................................................................................................... 384
6 Glossary............................................................................................................................................. 387
7 FAQ..................................................................................................................................................... 388
Appendix 1 Cybersecurity Recommendations ................................................................................. 392
Appendix 2 HDD Capacity Calculation .............................................................................................. 395
Appendix 3 Compatible Network Camera List.................................................................................. 396

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1 Features
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
Feature
Description
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.

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Feature
Description
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 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).

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Feature
Description
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.

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2 Front Panel and Rear Panel
The following front panel and rear panel figures are for reference only. The actual product shall
prevail.
2.1 Front Panel
2.1.1
NVR41/41-P/41-W/41-4KS2/41-P-4KS2/21-S2/21-P-S2/21-8P-S2/4
1-4KS2/41-P-4KS2/41-8P-4KS2/21-4KS2/21-P-4KS2/21-8P-4KS2
Series
The front panel is shown as in Figure 2-1.
Figure 2-1 Front panel
Table 2-1
No.
Name
Function
1
HDD status indicator light
The red light becomes on when HDD is
abnormal.

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No.
Name
Function
2
Power indicator light
The red light becomes on when the
power connection is OK.
3
Network status indicator light
The red light becomes on when the
network connection is abnormal.
2.1.2 NVR41H/41H-P/41H-8P Series
The front panel is shown as in Figure 2-2.
Figure 2-2 Front panel
Table 2-2
Icon
Name
Function
NET
Network status indicator light
The red light becomes on
when the network connection
is abnormal.
PWR
Power indicator light
The red light becomes on
when the power connection is
OK.
HDD
HDD status indicator light
The red light becomes on
when HDD is abnormal.
IR
Remote control receiver
It is to receive signal from the
remote control.
2.1.3 NVR41HS-W-S2 Series
The front panel is shown as below. See Figure 2-3.

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Figure 2-3 Front panel
Table 2-3
Icon
Name
Function
HDD
HDD status indicator
light
The blue light is on when the
HDD is malfunction.
NET
Network status indicator light
The blue light is on when the
network connection is abnormal.
POWER
Power status indicator light
The blue light is on when the
power connection is OK.
USB2.0 port
Connect to peripheral USB 2.0
storage device, mouse, burner
and etc.
2.1.4 NVR41-8P Series
The front panel is shown as below. See Figure 2-4.