Document  Version:  V1.3 
3 
  Support scrolling up or down the mouse to zoom in or out playback time bar. 
  The playback function supports pausing, speeding up, speeding down, fast 
forward/backward and location by a mouse click. 
  Support local zoom in any area by scrolling up or down the mouse during single-
channel playback. 
1.5  Backup 
  Support backup through a USB port. 
  Support batch and clip backup during playback. 
  Support system log backup. 
1.6  Alarm and Exception Management 
  Alarm for such types as motion detection, human detection, tempering detection, 
channel error, unauthorized access, internet interruption, IP address conflict, no HDD, 
HDD error and insufficient HDD space. 
  Alarms will trigger such actions as single-screen display, app alarm notification, alarm 
email, and any channel recording. 
  Support firmware watchdog. The system can be automatically rebooted when it runs 
abnormally.