COP-USA DVRH264-E4 - Manual (Page 31)

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3.3 OPERATION INTERFACE
There are Liveview, Playback and Setup options in the main interface, please press them to
access it.
3.3.1 LIVE
Click to enter into the interface as followings
3.3.2 PTZ CONTROL
Change the focus, preset aperture to control the PTZ.
Click to up/down/left/right control movement of the PTZ. When hold
on the one direction key, the PTZ will keep circling as that direction after user press the stop key in
the center of the wheel.
3.3.3 ZOOM
Click to zoom in and out.