Northern N2NVR Series User manual

N2NVR Series
Rev. 051920
2995 Foothills Blvd, Suite 200, Roseville, CA 95747 ♦ 855-388-7422 ♦ www.northernvideo.com
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8
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User Manual

Digital Video Recorder
User Manual
Legal Notice
ii Issue: V4.3 (2020-05-09)
Legal Notice
Trademark Statement：
VGA is trademark of IBM Corporation.
The Windows logo and Windows are trademarks or registered trademarks of Microsoft
Corporation.
Other trademarks or company names that may be mentioned in this document are the
property of their respective owners.
Responsibility statement：
To the extent permitted by applicable law, in no event shall the Company compensate for
any special, incidental, consequential, or consequential damages resulting from the contents of
the documentation and the products described, nor any Compensation for loss of profits, data,
goodwill, loss of documentation or expected savings.
Privacy Protection Reminder:
If you have installed our products, you may be collecting personal information such as faces,
fingerprints, license plates, emails, telephones, and GPS. In the process of using the product, you
need to comply with the privacy protection laws and regulations of your region or country to
protect the legitimate rights and interests of others. For example, provide clear and visible signs,
informing the relevant rights holder of the existence of video surveillance areas, and provide
corresponding contact information.
About This Document：
 This document is for use with multiple models. The appearance and function of the
products are subject to the actual products.
 Any loss caused by failure to follow the instructions in this document is the responsibility
of the user.
 This document will be updated in real time according to the laws and regulations of the
relevant region. For details, please refer to the product's paper, electronic CD, QR code or
official website. If the paper and electronic files are inconsistent, please refer to the
electronic file.
 The company reserves the right to modify any information in this document at any time.
 The revised content will be added to the new version of this document without prior notice.

Legal Notice
Digital Video Recorder
User Manual
Issue: V4.3(2020-03-09) iii
 This document may contain technical inaccuracies, or inconsistencies with product features
and operations, or typographical errors.
 If the obtained PDF document cannot be opened, please make sure you are using
compatible, up to date PDF reader software.

Digital Video Recorder
User Manual
Network Security Advice
iv Issue: V4.3 (2020-05-09)
Network Security Advice
Required measures to ensure basic network security of equipment:
Update firmware
According to the standard operating specifications of the technology industry, the firmware of
DVR, DVR and IP cameras should be updated to the latest version to ensure the latest features
and security of the device. Check for latest firmware versions on www.northernvideo.com.
The following recommendations can enhance your device's network security:
1. Change your password regularly
Regularly modifying the login credentials ensures that authorized users can log in to the device.
2. Modify the default HTTP and data ports
Modify the device's default HTTP and data ports, which are used for remote communication and
video browsing.
These two ports can be set to any number between 1025 and 65535. Changing the default port
reduces the risk of the intruder guessing which port you are using.
3. Use HTTPS/SSL encryption
Set up an SSL certificate to enable HTTPS encrypted transmission. The information transmission
between the front-end device and the recording device is fully encrypted.
4. Enable IP filtering
After IP filtering is enabled, only devices with the specified IP address can access the system.
5. Change the ONVIF password
Some old versions of the IP camera firmware, after the system's master password is changed, the
ONVIF password will not be automatically changed. You must update the camera's firmware or
manually update the ONIVF password.
6. Only forward the ports that must be used
Forward only the network ports that must be used. Avoid forwarding a long port area. Do not set
the device's IP to DMZ.
If the camera is connected locally to the DVR, you do not need to forward the port for each
camera. Only the ports of the DVR need to be forwarded.

Network Security Advice
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7. Use a different username and password on the video surveillance system.
In the unlikely event that your social media account, bank, email, etc. account information is
leaked, the person who obtained the account information will not be able to invade your video
surveillance system.
8. Restrict the permissions of the ordinary account
If your system is serving multiple users, make sure that each user has permission to access only
certain features required for the particular users.
9. UPNP
When the UPnP protocol is enabled, the router will automatically map the intranet ports.
Functionally, this is user-friendly, but it causes the system to automatically forward the data of
the corresponding port, causing the data that should be restricted to be stolen by others.
If you have manually opened HTTP and TCP port mappings on your router, we strongly
recommend that you turn this feature off. In actual usage scenarios, we strongly recommend that
you do not turn this feature on.
10. SNMP
If you do not use the SNMP, we strongly recommend that you turn it off. The SNMP function is
limited to temporary use for testing purposes.
11. Multicast
Multicast technology is suitable for the technical means of transmitting video data in multiple
video storage devices. There have been no known vulnerabilities involving multicast technology
so far, but if you are not using this feature, we recommend that you turn off multicast playback
on your network.
12. Check logs
If you want to know if your device is secure, you can check the logs to find some unusual access
operations. The device log will tell you which IP address you have tried to log in or what the user
has done.
13. Physically protect your device
For the safety of your device, we strongly recommend that you physically protect your device
from unauthorized access. We recommend that you place the device in a locked room and place it
in a locked cabinet with a locked box.

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Network Security Advice
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14. Network isolation between DVR and IP cameras
We recommend isolating your DVR and IP cameras from your computer network. This will
protect unauthorized users on your computer network from having access to these devices.

About This Document
Digital Video Recorder
User Manual
Issue: V4.3(2020-03-09) vii
About This Document
Purpose
This document describes in detail the installation, use, and interface operations of the DVR
(Network Video Recorder) device.
Modify Log
ID Version Log Release Time
1 V 4.0 Initial Release 2017
2 V 4.1 Add function
3 V 4.1.3 Perfect interface, add models
4 V 4.1.5 Add reverse playback
Open data port 2
20180106
5 V 4.1.6 Add 4 spilt screens of automatic adjusting
main stream or sub stream.
Add private protocol access.
Support multi-screen playback.
Add the schedule recording function by
channel setting
Increase the allocation of permissions by
channel
V 4.2 Add boot wizard
Add toolbar
Add manual recording and timely playback
Add multiple clicks to enlarge
Add user lockout
Remove the upper right corner to display the
alarm warning
Add the view of the latest alarm
information, modify the manual alarm
Modify quick navigation content

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About This Document
viii Issue: V4.3 (2020-05-09)
Preview channel and modify network
parameter function on IPC side
Support for copying to some or all channels
Remove the full screen function
Add background backup
Add video dual authentication
Intelligent motion detection
Add the color to distinguish the video type,
increase the video type search
Add sound switch
Add instant playback
Remove the timeline function
Increase intelligence analysis
Increase test DDNS function
Increase test mail function
Modify the time precision to half an hour,
remove the recording plan master switch
Add hardware information
Added video dual authentication and boot
wizard configuration function
Add alarm log
Add interval update profile
6 V 4.2.1 Add the NTP synchronization interval and
add the manual NTP synchronization
interval.
Add access to thermal imaging cameras and
display IPC product models
Remove auto hide
Add the patrol route and line sweep function
Add upgrade IPC, restart IPC, restore
factory IPC
Increase the selection of primary and sub
stream backups
Add click playback button to play video
Add UI display granular IPC intelligence
analysis
Add 802.1x functionality

About This Document
Digital Video Recorder
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Issue: V4.3(2020-03-09) ix
Add SNMP function
Add upgrade device features
Add the timing restart function
Add U disk upgrade display progress bar
7 V 4.2.4 Increase U-boot and kernel version display
Increase P2P status display
Increase signal type display
Increase POE icon display
Increase SSL access IPC, special models
support
Optimize username and password saving
methods
Increase batch backup
Increase fixed point playback
Increase hard disk alarm
Optimized recording expiration time input
mode is editable
Increase the city after each time zone
Increase face recognition
Add P2P server
8 V 4.3 Add pattern unlock
Add mailbox reset password
Increase the secure question reset password
Add 1+7 split screen
Add channel information display
Add 3D ball machine
Remove the video type switch from the
scene
Add RAID
Add S.M.A.R.T
Add formatting (fat32 and NTFS)
Support event video quick download backup
Add event video backup
Add the full screen of the bomb and send the
screenshot
Add IPC intelligent analysis configuration

Digital Video Recorder
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About This Document
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Add manual input automatic logout time
Restore factory refinement
Symbol Conventions
The symbols may be found in this document, which are defined as follows:
Symbol Description
Alerts you to a high risk hazard that could, if not avoided.
Alerts you to a medium or low risk hazard that could, if not
avoided, result in moderate or minor injury.
Alerts you to a potentially hazardous situation that could, if
not avoided, result in equipment damage, data loss,
performance deterioration, or unanticipated results.
Provides a tip that may help you solve a problem or save
time.
Provides additional information to emphasize or supplement
important points in the main text.

Safety Instructions
Digital Video Recorder
User Manual
Issue: V4.3(2020-03-09) xi
Safety Instructions
The following are the correct uses of the product. To prevent danger and property damage, please
read this manual carefully before using the device and strictly comply to the manual when using
it. Please save the manual after reading.
Requirements
 The DVR is required to be installed indoors.
 The DVR device does not support wall mounting.
 Do not place and install the device in direct sunlight or near heat-generating equipment.
 Do not install the device in a place subject to high humidity, dust or soot.
 Please keep the equipment installed horizontally or install the equipment in a stable place,
taking care to prevent the product from falling.
 Do not drop or spill liquid into the device and ensure that no liquid-filled items are placed
on or around the device to prevent liquid from flowing into the device.
 Install the device in a well-ventilated area and do not block the ventilation openings of the
device.
 Use the device only within the rated input and output range.
 Only remove the device cover of the device if installing or replacing Hard Disks, Hard
Disks are the only serviceable part inside the device.
 Please transport, use and store the device within the permissible humidity and temperature
range.
Power Requirement
 Be sure to use the specified manufacturer's model battery, otherwise there is a danger of
explosion!
 Be sure to use the battery as required, otherwise there is a danger of the battery catching
fire, exploding or burning!
 Only use the same model of battery when replacing the battery!
 Be sure to dispose of the used battery following local recycling laws.
 Only use power supply included with the device.

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 Use a power supply that meets the SELV (Safety Extra Low Voltage) requirements and
supply power according to the rated voltage of IEC60950-1 in accordance with the Limited
Power Source. The specific power supply requirements are based on the equipment label.
 Connect the Class I product to plug with the power outlet with a protective ground
connection.
Important Statement
Users are required to enable and maintain the lawful interception (LI) interfaces of video
surveillance products in strict compliance with relevant laws and regulations. Installation of
surveillance devices in an office area by an enterprise or individual to monitor employee
behavior and working efficiency outside the permitted scope of the local law and use of video
surveillance devices for eavesdropping of illegal purposes constitute behaviors of unlawful
interception.

Contents
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Contents
Legal Notice ................................................................................................................. ii
Network Security Advice ......................................................................................... iv
About This Document ............................................................................................ vii
Purpose ............................................................................................................................... vii
Modify Log ........................................................................................................................ vii
Symbol Conventions ............................................................................................................ x
Safety Instructions ..................................................................................................... xi
Requirements ...................................................................................................................... xi
Power Requirement ............................................................................................................. xi
Important Statement ........................................................................................................... xii
Contents ..................................................................................................................... xiii
1.2.1 Cloud Upgrade ................................................................................................... 1
1.2.2 Real-time Monitoring ......................................................................................... 1
1.2.3 Playback ............................................................................................................. 1
1.2.4 User Management .............................................................................................. 2
1.2.5 Storage Funtion .................................................................................................. 2
1.2.6 Alarm Function .................................................................................................. 2
1.2.7 Network Monitoring........................................................................................... 2
1.2.8 Split Screen ........................................................................................................ 3
1.2.9 Recording Function ............................................................................................ 3
1.2.10 Backup Function .............................................................................................. 3
1.2.11 External Device Control ................................................................................... 3
1.2.12 Accessibility ..................................................................................................... 3
3.3.1 Install One or Two Hard disks .......................................................................... 10
6.3.1 Time Search ..................................................................................................... 39
6.3.2 Picture Grid ...................................................................................................... 40
6.3.3 Event ................................................................................................................ 42
6.3.4 Backup ............................................................................................................. 43
7.3.1 Camera ............................................................................................................. 45

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7.3.2 Encode Parameter............................................................................................. 49
7.3.3 Sensor Setting .................................................................................................. 50
7.3.4 OSD Settings .................................................................................................... 52
7.3.5 Privacy Zone .................................................................................................... 53
7.3.6 Channel Type ................................................................................................... 54
7.4.1 Record Schedule .............................................................................................. 55
7.4.2 Disk .................................................................................................................. 56
7.4.3 S.M.A.R.T ........................................................................................................ 58
7.5.1 General ............................................................................................................. 59
7.5.2 Motion Detection ............................................................................................. 60
7.5.3 Camera Tamper ................................................................................................ 62
7.5.4 Video Loss........................................................................................................ 63
7.5.5 Intelligent Analysis........................................................................................... 64
7.5.6 Alarm In ........................................................................................................... 65
7.5.7 Abnormal Alarm ............................................................................................... 67
7.6.1 Network............................................................................................................ 69
7.6.2 802.1 X ............................................................................................................. 71
7.6.3 DDNS ............................................................................................................... 72
7.6.4 E-mail ............................................................................................................... 73
7.6.5 Port Mapping.................................................................................................... 74
7.6.6 P2P ................................................................................................................... 74
7.6.7 IP Filter ............................................................................................................ 75
7.7.1 Information ...................................................................................................... 78
7.7.2 General ............................................................................................................. 79
7.7.3 User .................................................................................................................. 84
7.7.4 Security Center ................................................................................................. 86
7.7.5 Auto Sequence.................................................................................................. 90
7.7.6 Logs ................................................................................................................. 92
7.7.7 Maintenance ..................................................................................................... 94
7.7.8 Auto Restart ..................................................................................................... 95
8.3.1 Browsing Real-Time Videos .......................................................................... 101
8.3.2 Live Video ...................................................................................................... 103

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8.3.3 Channel Operation ......................................................................................... 104
8.3.4 PTZ Control and Setting ................................................................................ 105
8.3.5 Sensor Setting ................................................................................................ 107
8.3.6 Layout ............................................................................................................ 109
8.4.1 Video Playback................................................................................................ 110
8.5.1 Channel Alarm ................................................................................................ 112
8.5.2 System Alarm .................................................................................................. 114
9.1.1 Camera ............................................................................................................ 116
9.1.2 Encode ............................................................................................................ 118
9.1.3 Sensor Setting ................................................................................................. 119
9.1.4 OSD ............................................................................................................... 121
9.1.5 Privacy Zone .................................................................................................. 121
9.2.1 Record Schedule ............................................................................................ 122
9.2.2 Disk ................................................................................................................ 123
9.2.3 S.M.A.R.T ...................................................................................................... 124
9.3.1 General ........................................................................................................... 125
9.3.2 Motion Detection ........................................................................................... 126
9.3.3 Camera Tamper .............................................................................................. 128
9.3.4 Video Loss...................................................................................................... 129
9.3.5 Intelligent Analysis......................................................................................... 130
9.3.6 Alarm In ......................................................................................................... 130
9.3.7 Abnormal Alarm ............................................................................................. 131
9.4.1 Network.......................................................................................................... 132
9.4.2 DDNS ............................................................................................................. 134
9.4.3 E-mail ............................................................................................................. 134
9.4.4 Port Mapping.................................................................................................. 135
9.4.5 P2P ................................................................................................................. 136
9.4.6 IP Filter .......................................................................................................... 137
9.4.7 802.1X ............................................................................................................ 139
9.4.8 Web Mode ...................................................................................................... 140
9.5.1 Device Information ........................................................................................ 140
9.5.2 General ........................................................................................................... 142

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9.5.3 User ................................................................................................................ 145
9.5.4 Password ........................................................................................................ 147
9.5.5 Logs ............................................................................................................... 148
9.5.6 Maintenance ................................................................................................... 149
9.5.7 Auto Restart ................................................................................................... 150

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1 Preface
1.1 Product Description
This product is a high-performance DVR device. The product has local preview, video multi-
screen split display, local real-time storage function of video files, support for mouse shortcut
operation, remote management and control functions.
This product is widely used in public security, transportation, electric power, education and other
industries.
1.2 Product Features
1.2.1 Cloud Upgrade
For devices that have access to the public network, you can update the software of the device
through online upgrade.
1.2.2 Real-time Monitoring
It has a VGA (Video Graphics Array) port and an HDMI (High Definition Media Interface) port.
It can be monitored by a monitor screen or monitor, and supports simultaneous output of VGA
and HDMI.
1.2.3 Playback
Each channel offers independent real-time recording, and play functions such as retrieval,
playback, network monitoring, video query, and download. Please refer to chapter Playback
Multiple playback modes: slow release, fast release, reverse playback, and frame-by-frame
playback.
The exact time when the event occurred can be displayed during playback of the recording.
You can select any area of the screen for partial magnification.

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1.2.4 User Management
Each user group has a rights management set, which can be selected autonomously. The total
rights set is a subset, and the user rights in the group cannot exceed the rights management set of
the user group.
1.2.5 Storage Funtion
According to the user's configuration and policies (such as through alarm and timing settings),
the corresponding audio and video data transmitted by the remote device is stored in the DVR
device. For details, please refer to chapter Storage Management.
Users can record by WEB mode as needed. The video files are stored on the computer where the
client is located. Please refer to chapter Storage.
1.2.6 Alarm Function
Real-time response to external alarm input, correct processing according to the user's preset
linkage settings and give corresponding prompts.
The setting options of the central alarm receiving server are provided, so that the alarm
information can be actively and remotely notified, and the alarm input can come from various
external devices connected.
The alarm information can be notified to the user by mail or APP push information.
1.2.7 Network Monitoring
Through the network, the audio and video data of the camera or NVS (Network Video Server) of
the DVR device is transmitted to the network terminal for decompression and reproduction.
The device supports 8 simultaneous online users to perform streaming operations.
The audio and video data is transmitted using protocols such as HTTP (Hyper Text Transfer
Protocol), TCP (Transmission Control Protocol), UDF (User Datagram Protocol), MULTICAST,
RTP (Real-time Transport Protocol), and RTCP (Real Time Streaming Protocol).
Use SNMP (Simple Network Management Protocol) for some alarm data or information
Support WEB mode access system, applied to WAN, LAN environment.

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1.2.8 Split Screen
Image compression and digitization are used to compress several images in the same scale and
display them on a monitor. 1/4/8/9/16 screen splitting is supported during preview; 1/4/9/16
screen splitting is supported during playback, views are dependent on the amount of channels
available on the recorder.
1.2.9 Recording Function
The device supports regular recording, motion detection recording, alarm recording, and
intelligent recording. The recording file is placed on the hard disk device, USB (Universal Serial
Bus) device, and client PC (personal computer)
1.2.10 Backup Function
Support USB2.0 and eSATA video backup.
1.2.11 External Device Control
The peripheral control function is supported, and the control protocol and connection interface of
each peripheral can be freely set.
Support transparent data transmission of multiple interfaces, such as: RS232, RS485.
1.2.12 Accessibility
Supports video NTSC (Nation Television Standards Committee) system and PAL (Phase
Alteration Line) system.
Supports system resource information and real-time display of running status.
Supports record logggin.
Supports local GUI (Graphical User Interface) output and quick menu operation via mouse.
Supports playback of audio and video from remote IPC devices.
For other functions, please see the following text.

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2 Product Structure
2.1 Front Panel
Figure 2-1 One disk/two disks model
PO WER REC NET
Table 2-1 Front panel function
Port Description
PWR When the DVR is operating, the PWR indicator is steady on. When the
DVR is shut down, the PWR indicator is turned off.
HDD Hard disk status indicator
This indicator flashes when data is transmitted.
POE PoE network status indicator
This indicator flashes when data is transmitted.
KB/MOUSE Only supports connected to an USB mouse.
Figure 2-2 Real panel
Table 2-2 Real panel function
No. Port Description
1 AUDIO IN Audio input, such as microphone.