PLANET DVR-1672 - Manual (Page 60)

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6.2 Backup Setup
User can back-up any segment of recorded data in a specified time frame. To do
so, connect a USB to the DVR. The format of backup file is IRF file and can be
played by “DVRemoteDesktop.exe” or “iCMS”.
Item Description
From Backup file starting time.
To Backup file ending time.
Device Select USB as the backup device.
Free Space The available space in your backup device.
Refresh Recalculate the available space of backup device.
Calculate Calculate the size of backup file.
Start
Start backup operation. Be sure to calculate the size of
backup file BEFORE operating backup.
"Note
Do not unplug the USB device or turn off the DVR during the
backup process to avoid unrecoverable error. When backup is
completed, you need to re-plug in order to ensure proper
function.