RECORD, SEARCH, PLAYBACK & BACKUP QT428 User Manual
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Step 2: Click Search button, the searched files will be displayed in the file list box, user can select date, channels
accordingly.
① Lock: check a file, click Lock button to lock this file, after that, that file will not be deleted or covered
(unless you format the hard drive).
② Unlock: check a locked file, click Lock button to unlock this file
③ Delete: check an unlocked file, click Delete button to delete this file.
Step 3: Checkmark “All” button; user can lock/unlock or delete all files in the file manager column.
Step 4: Double click an unlocked item to playback.
Note: when the monitor resolution is VGA 800*600, the file manager interface will display a hide button.
Click this button to expand the interface.
5.4 Backup
This unit supports backup to USB Flash, USB hard drive and USB DVD burner through the USB port on the front
panel. You can also backup via IE browser over the Internet. Refer to 7.6.2 Remote Backup.
Step 1: Enter into backup configuration; refer to Fig 5-4:
Fig 5-4 Backup Configuration
Step 2: Set the start & end time, select channels, click Search button, the searched data will be displayed in the
data backup list box
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