![background image](http://html.mh-extra.com/html/northern/n3nvr-series/n3nvr-series_user-manual_1708282022.webp)
Network Video Recorder
User Manual
Preface
2
Issue: V4.6.X(2022-04-24)
1.2.2
Playback
Each channel has independent real-time recordings and multi 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.
1.2.3
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.
1.2.4
Storage Function
According to the user's configuration and policies (alarm or time settings), the corresponding
audio and video data transmitted by the remote device is stored in the NVR 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.
1.2.5
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.