Foreword - Dahua NVR41-4KS2 Series User Manual

General
This user's manual (hereinafter referred to be "the Manual") introduces the installation, functions and
operations of the Network Video Recorder (NVR) devices (hereinafter referred to be "the Device").
Safety Instructions
The following categorized signal words with defined meaning might appear in the manual.
Signal Words
Revision History
Version
V1.1.0
V1.0.10
V1.0.9
V1.0.8
V1.0.7
V1.0.6
V1.0.5

Foreword

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 Content
Combined AI and non-AI models and deleted
discontinued models.
Added several models.
Added 6 models.
Added 5 models.
● Added 2 models.
● Added .
● Added "4.3.3.8 Picture Search", "4.6.4
Picture Search Playback", "4.12.7.3 Disk
Health Monitoring", "4.7.3.2
Exporting/Importing Face Database"
● Updated "4.7.1.1 Face Detection", "4.7.1.5
Human Detection", "4.7.2.3 Face
Recognition", and "4.16.1 Display"
Added "4.3.9 Split Tracking", "4.7.2.11 Main-
sub Tracking", "4.7.1.11 Analytics List",
"4.7.2.12 Video Quality Analytics", "4.12.11
Setting iSCSI" and "5.4 Cluster Service".
I
User's Manual
Release Time
May 2021
April 2021
February 2021
January 2021
August 2020
May 2020
May 2020