Q-See QSF2648016 - Manual (Page 44)

User Manual for Commercial Series Net DVR
Page
44 Total 121
5.2 Main and Aux output preview
You can use “Main” output to enter into DVR menu, setup both “Main” and “Aux” output
preview properties.
Please press
【Main/Aux】 button to enter into “Main” output control mode, then press
【Menu】 button to enter into DVR menu, the main video output will display the following DVR
menu:
Move “Active Frame” to “Preview” icon and press
【ENTER】to enter into “Preview” menu:
You can select out to setup main output and aux output respectively.