Preface
Network Video Recorder
User Manual
viii
Issue V4.6 (2021-05-12)
Add multiple layouts
Support selection of preview strategy
Add audio playback function at WEB
Add event retrieval recording and backing up
data through events at WEB
Add and modify the IP address and subnet
mask of the IPC
Support disconnected network and
replenishment recording switch
Increase disk WDDA function
Support HTTPS port, used for https access to
WEB pages
Add electronic fence feature of active deterrent
camera
Add the allowable phone number and refine
the backup authority
Add multiple layouts to auto sequence.
System log is saved to flash and hard disk
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.