Dahua Technology NVR41 Series User manual

P
Network Video Recorder
User’s Manual
V4.4.9
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.

Foreword 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
DANGER
Indicates a high potential hazard which, if not avoided, will result
in death or serious injury.
WARNING
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or unpredictable
result.
TIPS
Provides methods to help you solve a problem or save you time.
NOTE
Provides additional information as the emphasis and supplement
to the text.
Revision History
Version
Revision Content
Release Time
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

Foreword II
Version
Revision Content
Release Time
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
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.

Foreword III
The manual would be updated according to the latest laws and regulations of related
regions. For detailed information, see the paper manual, CD-ROM, QR code or our official
website. If there is inconsistency between paper manual and the electronic version, the
electronic version shall prevail.
All the designs and software are subject to change without prior written notice. The product
updates might cause some differences between the actual product and the manual. Please
contact the customer service for the latest program and supplementary documentation.
There still might be deviation in technical data, functions and operations description, or
errors in print. If there is any doubt or dispute, please refer to our final explanation.
Upgrade the reader software or try other mainstream reader software if the manual (in PDF
format) cannot be opened.
All trademarks, registered trademarks and the company names in the manual are the
properties of their respective owners.
Please visit our website, contact the supplier or customer service if there is any problem
occurred when using the device.
If there is any uncertainty or controversy, please refer to our final explanation.

Important Safeguards and Warnings IV
Important Safeguards and Warnings
The following description is the correct application method of the device. 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.

Important Safeguards and Warnings V
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.

Table of Contents VI
Table of Contents
Foreword.......................................................................................................................................................I
Important Safeguards and Warnings..........................................................................................................IV
Table of Contents........................................................................................................................................VI
1 Features................................................................................................................................................1
1.1 Overview........................................................................................................................................1
1.2 Features.........................................................................................................................................1
2 Front Panel and Rear Panel.................................................................................................................3
2.1 Front Panel....................................................................................................................................3
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 .............................................................................3
2.1.2 NVR41H/41H-P/41H-8P Series..............................................................................................3
2.1.3 NVR41HS-W-S2 Series..........................................................................................................4
2.1.4 NVR41-8P Series....................................................................................................................5
2.1.5 NVR41-8P-4KS2/L Series.......................................................................................................5
2.1.6 NVR42/42-P/42-8P Series......................................................................................................6
2.1.7
NVR21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2/21HS-4
KS2/21HS-P-4KS2/21HS-8P-4KS2 Series..........................................................................................8
2.1.8
NVR/22-S2/22-P-S2/22-8P-S2/42-16P/42N/52-4KS2/52-8P-4KS2/52-16P-4KS2/42-4KS2/4
2-P-4KS2/42-8P-4KS2/42-16P-4KS2/5224-24P-4KS2/54-4KS2/54-16P-4KS2/44-4KS2/44-16P-4KS
2/5424-24P-4KS2/58-4KS2/S258-16P-4KS2/48-4KS2/48-16P-4KS2/22-4KS2/22-P-4KS2/22-8P-4K
S2/52-8P-4KS2E/52-16P-4KS2E/54-16P-4KS2E/58-16P-4KS2E Series...........................................9
2.1.9 NVR44/44-8P/44-16P Series................................................................................................10
2.1.10 NVR48/48-16P Series.......................................................................................................12
2.1.11 NVR42V-8P Series................................................................................................................14
2.1.12 NVR21-W-4KS2 Series.....................................................................................................15
2.1.13 NVR21HS-W-4KS2 Series................................................................................................16
2.1.14 NVR11 HC-S3 Series........................................................................................................17
2.1.15 NVR1104HS-W/NVR1108HS-W Series............................................................................17
2.2 Rear Panel...................................................................................................................................18
2.2.1 NVR41/41-P/41-8P/41-W Series ..........................................................................................18
2.2.2 NVR21-S2/21-P-S2/21-8P-S2/21-4KS2/21-P-4KS2/21-8P-4KS2 Series............................20
2.2.3 NVR41H/41H-P/41H-8P Series............................................................................................21
2.2.4 NVR21HS-S2/21HS-P-S2/21HS-8P-S2/21HS-4KS2/21HS-P-4KS2/21HS-8P-4KS2
Series…..............................................................................................................................................22
2.2.5 NVR41HS-W-S2 Series........................................................................................................24
2.2.6 NVR22-S2/22-P-S2/22-8P-S2/22-4KS2/22-P-4KS2/22-8P-4KS2 Series............................25

Table of Contents VII
2.2.7 NVR42/42N/42-P/42-8P/42-16P Series................................................................................26
2.2.8 NVR52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-8P-4KS2E/52-16P-4KS2E
Series…..............................................................................................................................................28
2.2.9 NVR44/44-8P/44-16P Series................................................................................................30
2.2.10
NVR54-4KS2/58-4KS2/54-16P-4KS2/58-16P-4KS2/5424-24P-4KS2/5816P-4KS2E Series
…………..............................................................................................................................................33
2.2.11 NVR48/48-16P Series...........................................................................................................35
2.2.12 NVR42V-8P Series............................................................................................................37
2.2.13 NVR41-4KS2/41-P-4KS2/41-8P-4KS2.............................................................................39
2.2.14 NVR41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2..............................................................40
2.2.15 NVR42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2......................................................42
2.2.16 NVR44-4KS2/44-16P-4KS2..............................................................................................44
2.2.17 NVR48-4KS2/48-16P-4KS2 Series ..................................................................................46
2.2.18 NVR21-W-4KS2 Series.....................................................................................................48
2.2.19 NVR21HS-W-4KS2 Series................................................................................................49
2.2.20 NVR11 HC-S3 Series........................................................................................................50
2.2.21 NVR1104HS-W/NVR1108HS-W Series............................................................................51
2.3 Alarm Connection........................................................................................................................53
2.3.1 Alarm Port .............................................................................................................................53
2.3.2 Alarm input port.....................................................................................................................53
2.3.3 Alarm input and output port...................................................................................................54
2.3.4 Alarm relay specifications .....................................................................................................54
2.4 Bidirectional talk ..........................................................................................................................56
2.4.1 Device-end to PC-end...........................................................................................................56
2.4.2 PC-end to the device-end.....................................................................................................56
2.5 Mouse Operation.........................................................................................................................57
2.6 Remote Control ...........................................................................................................................58
3 Device Installation...............................................................................................................................60
3.1 Device Installation Diagrams.......................................................................................................60
3.2 Check Unpacked NVR.................................................................................................................60
3.3 About Front Panel and Rear Panel.............................................................................................61
3.4 HDD Installation...........................................................................................................................61
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-4KS2/21-4
KS2/21-P-4KS2/21-8P-4KS2/21-W-4KS2 Series ..............................................................................61
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..........62
3.4.3
NVR42/42N/42-P/42-8P/42-16P/42-4K/42-8P-4K/52-4KS2/52-8P-4KS2/52-16P-4KS2/22-S
2/22-P-S2/22-8P-S2/42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2/5224-24P-4KS2/22-4KS2/22-
P-4KS2/22-8P-4KS2/52-8P-4KS2E/52-16P-4KS2E Series...............................................................62
3.4.4
NVR44/44-8P/44-16P/54-4KS2/54-16P-4KS2/44-4KS2/44-16P-4KS2/5424-24P-4KS2/54-1
6P-4KS2E Series................................................................................................................................63

Table of Contents VIII
3.4.5 NVR48/48-16P/58-4KS2/58-16P-4KS2/48-4KS2/48-16P-4KS2/52-16P-4KS2E Series.....63
3.4.6 NVR42V-8P Series ...............................................................................................................64
3.5 CD-ROM Installation....................................................................................................................65
3.6 Connection Sample.....................................................................................................................67
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-4KS2/21-4
KS2/21-P-4KS2/21-8P-4KS2 Series..................................................................................................67
3.6.2 NVR41H/41H-P/41H-8P Series............................................................................................67
3.6.3 NVR41HS-W-S2/21-W-4KS2/21HS-W-4KS2 Series ...........................................................68
3.6.4
NVR21HS-S2/21HS-P-S2/21HS-8P-S2/41HS-4KS2/41HS-P-4KS2/41HS-8P-4KS2/21HS-4
KS2/21HS-P-4KS2/21HS-8P-4KS2 Series........................................................................................69
3.6.5 NVR22-S2/22-P-S2/22-8P-S2/22-4KS2/22-P-4KS2/22-8P-4KS2 Series............................69
3.6.6 NVR42N Series.....................................................................................................................69
3.6.7
NVR42/42-P/42-8P/42-16P/52-4KS2/52-8P-4KS2/52-16P-4KS2/5224-24P-4KS2/52-8P-4K
S2E/52-16P-4KS2E Series.................................................................................................................70
3.6.8 NVR42-8P-4K/42-4KS2/42-P-4KS2/42-8P-4KS2/42-16P-4KS2 Series ..............................70
3.6.9
NVR54-4KS2/54-16P-4KS2/58-4KS2/58-16P-4KS2/5424-24P-4KS2/54-16P-4KS2E/5816P
-4KS2E Series....................................................................................................................................71
3.6.10 NVR44/44-8P/44-16P/44-4KS2/44-16P-4KS2 Series......................................................71
3.6.11 NVR48/48-16P/48-4KS2/48-16P-4KS2 Series.....................................................................72
3.6.12 NVR42V-8P Series...........................................................................................................72
4 Local Basic Operation.........................................................................................................................74
4.1 Getting Started ............................................................................................................................74
4.1.1 Boot up..................................................................................................................................74
4.1.2 Device Initialization ...............................................................................................................74
4.1.3 Reset Password....................................................................................................................77
4.1.4 Quick Settings.......................................................................................................................84
4.2 Camera......................................................................................................................................107
4.2.1 Connection..........................................................................................................................107
4.2.2 Remote Device Initialization.................................................................................................111
4.2.3 Short-Cut Menu to Register Camera ..................................................................................115
4.2.4 Image...................................................................................................................................115
4.2.5 Encode................................................................................................................................118
4.2.6 Channel Name ....................................................................................................................121
4.2.7 Remote Upgrade.................................................................................................................121
4.2.8 Remote Device Info.............................................................................................................122
4.3 Live View...................................................................................................................................124
4.3.1 Preview................................................................................................................................124
4.3.2 Navigation bar.....................................................................................................................125
4.3.3 Preview Control Interface....................................................................................................127
4.3.4 Wireless Pairing ..................................................................................................................132
4.3.5 Sequence ............................................................................................................................133
4.3.6 Fisheye (Optional)...............................................................................................................135

Table of Contents IX
4.3.7 Test Temperature.................................................................................................................138
4.3.8 AI Preview Mode.................................................................................................................139
4.4 PTZ............................................................................................................................................141
4.4.1 PTZ Settings........................................................................................................................141
4.4.2 PTZ Control.........................................................................................................................143
4.4.3 Configuring PTZ Functions .................................................................................................145
4.4.4 Calling PTZ Functions.........................................................................................................147
4.5 Record File................................................................................................................................148
4.6 Playback and Search ................................................................................................................148
4.6.1 Instant Playback..................................................................................................................148
4.6.2 Search Interface..................................................................................................................148
4.6.3 Smart Search Playback.......................................................................................................153
4.6.4 Mark Playback.....................................................................................................................153
4.6.5 Playback Image...................................................................................................................155
4.6.6 Splice Playback...................................................................................................................155
4.6.7 File List................................................................................................................................155
4.6.8 Other Aux Functions ..........................................................................................................157
4.7 AI ...............................................................................................................................................157
4.7.1 AI Search.............................................................................................................................157
4.7.2 Parameters..........................................................................................................................171
4.7.3 Database.............................................................................................................................204
4.8 Event Manager..........................................................................................................................211
4.8.1 Alarm Info............................................................................................................................ 211
4.8.2 Alarm Status........................................................................................................................211
4.8.3 Alarm Input..........................................................................................................................212
4.8.4 Alarm Control ......................................................................................................................214
4.8.5 Video Detection...................................................................................................................215
4.8.6 Audio Detect........................................................................................................................223
4.8.7 Thermal Alarm.....................................................................................................................225
4.8.8 Abnormality .........................................................................................................................228
4.9 POS...........................................................................................................................................230
4.9.1 Search.................................................................................................................................230
4.9.2 Settings................................................................................................................................231
4.10 Operation and Maintenance......................................................................................................234
4.10.1 Log ..................................................................................................................................234
4.10.2 System ............................................................................................................................235
4.10.3 Network...........................................................................................................................239
4.10.4 Maintenance and Management......................................................................................242
4.11 File Backup................................................................................................................................249
4.12 Network......................................................................................................................................250
4.12.1 TCP/IP.............................................................................................................................250
4.12.2 Port..................................................................................................................................251
4.12.3 Wi-Fi AP ..........................................................................................................................252
4.12.4 Repeater..........................................................................................................................254
4.12.5 PPPoE.............................................................................................................................256
4.12.6 DDNS..............................................................................................................................257