Vivotek ND9542P 32-Channel 4K UHD NVR (No HDD) - Manual (Page 108)

VIVOTEK - Built with Reliability
108 - User's Manual
3-5-4. Settings–Camera–Media
The Main stream is set for higher video resolution & Network bandwidth use. The Sub
stream requires lower video resolution & Network bandwidth. Users can not associate
individual camera stream with either the Main or Sub stream.
• Main stream: the 1st stream of camera with H.265/1080p /4Mbps/max frame rate.
• Sub stream: the 2nd stream of camera with H.264/360P/1Mbps/max frame rate
• If the connected camera does not support the values described above, the NVR will take
the value close to the specifications (resolution/ bitrate)
• The Main stream is applied with 2x2 or other layout of a larger view cell.
• The Sub stream is applied with 3x3 or other layouts of a smaller view cell.
On a local console, the P (Panoramic or M (Middle) view cell will display the Main stream.
For Playback:
Only the Main stream is selected for Playback display. The exported clip file should be the
same as selected as the stream type. The Main stream will be the default.
The NVR automatically changes camera stream settings when cameras are added.
If users want to manually configure camera stream setting, they can disable this function.
The default for the automatic configuration is,
• Main stream: H.265 1080p
• Sub stream: H.264 360p
On a web console, the Main stream is displayed on a 1x1 layout. The Sub stream is
displayed on other layouts.