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VIVOTEK
20 - User's Manual
In terms of local display, the default stream 1 for live view can be congured with a
resolution up to Full HD 30fps. Stream 1 is also a source for continuous recording.
Make
sure your cameras' stream 1 resolution does not exceed 1080P at 30fps.
The NVR supports Auto Stream Size, which automatically adjusts streaming display for
efcient leverage of system resources. If you disable the Auto Stream Size function and
manually congure your stream settings, you must comply with the limitations listed above.
You may need to congure a recording stream of a particular resolution and bit rate. When doing
this, you should make sure the Recording load does not exceed the maximum 96Mbps as the
sum of bit rates per second allocated for all recording streams. If you have multiple cameras and
the upper bound is exceeded, proceed with the following:
Congure the Recording setting in Conguration > Camera Management > Update Camera.
When the Update window prompts, select a camera. Click on the Recording Settings tabbed
menu, and select a smaller stream (in higher or lower bit rate or resolution) as the source of
recording. Click Update to save your conguration and repeat the setting until the recording
load is back within the 96Mbps limitation.
IMPORTANT:
Compression MJPEG H.264
Resolution 1080P 720P VGA CIF 1080P 720P VGA CIF
Frame rate 15fps 30fps
by bit rate /
video quality
Good 6Mbps 6Mbps 1Mbps 512kbps
No. of streams - - 9 16 1 1 3 7
If you congure a RAID5 volume as the recording storage, the maximum system throughput will
be reduced to half of the 96Mbps limitation.
Compression MPEG-4
Resolution 1080P 720P VGA CIF
Frame rate 30fps
by bit rate /
video quality
6Mbps 6Mbps 1Mbps 512kbps
No. of streams 2 2 5 16