Brickcom NR-2104 User Manual page 172

USB LED indicator will show red to warn.
Note: USB device format should be FAT32 file system.
To enable the USB Backup button function and to setup the USB Backup
button's channels and the latest time duration for future duplication, please
select "USB Backup" from the drop-down menu of Management
USB Backup Button Setting in Remote Web Browsers
Enable : USB Backup button function can be enabled or disabled, for security
concern.
The latest duration of recordings: Users can set a maximum of days and hours
to backup the latest video files.
Channel Selection: Users can select certain camera channels or click "All"
channels for future backup.
Apply: Please click "Apply" to finish configuration.
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