User’s Manual
8
Parameter Description
PAL is mostly used in China and Europe, and NTSC primarily in the
United States and Japan.
Image
Brightness The larger the value, the brighter the image.
Contrast Larger value for more contrast between bright and dark areas.
Hue
Make the color brighter or darker. The default value is made by the
light sensor, and we recommend keeping it default.
Saturation The larger the value, the thicker the color.
Gamma
Changes the picture brightness and improves the picture dynamic
range in a non-linear way. The larger the value, the brighter the image.
Gain
Adjustment
Amplify the video signal to increase image brightness. If the value is
too large, there will be more noise in the image.
Mirror Display the image with left and right side reversed.
Flip Display the image upside down.
Display Time Display the current time and date on the video image.
Audio
Control
— Turn on or off each type of sound.
Volume
Control
Microphone
Volume
Adjust the volume as needed.
Speaker
Volume
Access Control Settings
This section introduces how to configure the two locks connected to the lock port or the RS-485 port
of the VTO.
4.3.1 Local
Select Local Settings > Access Control Settings.
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