Nuvico DV turbo NVDV4-16000 Instruction Manual page 39

Highlight the DEVICE by pressing the down directional
button, then select and verify that USB (FRONT) – HDD
has been selected.
Select the backup data type to be automatically backed up
onto the external hard disk drive. The illustration to the left
has selected NORMAL, ALARM and MOTION data.
Highlight the START button, then press ENTER button to
begin automatic backup. Please note that the USB
insignia's color is gray.
The status of the automatic backup to the external hard
disk drive will be displayed at the bottom of the window.
Please note that the USB insignia's color has been
changed to blue to signify that the backup is in progress.
The DVR will start backing up the latest data onto the
external hard drive in real-time as the DVR continues to
write the data onto its internal hard disk drive.
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DV TURBO SERIES DVR