Vivotek ND8401 User Manual page 20

VIVOTEK
In terms of local display, the default stream 1 for live view can be configured with a
resolution up to Full HD 30fps. Stream 1 is also a source for continuous recording.
sure your cameras' stream 1 resolution does not exceed 1080P at 30fps.
Compression
Resolution 1080P
Frame rate
by bit rate /
video quality
No. of streams -
Compression
Resolution 1080P
Frame rate
by bit rate / 6Mbps
video quality
No. of streams 2
The NVR supports Auto Stream Size, which automatically adjusts streaming display for
efficient leverage of system resources. If you disable the Auto Stream Size function and
manually configure your stream settings, you must comply with the limitations listed above.
IMPORTANT:
You may need to configure 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:
If you configure a RAID5 volume as the recording storage, the maximum system throughput will
be reduced to half of the 96Mbps limitation.
Configure the Recording setting in Configuration > 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 configuration and repeat the setting until the recording
load is back within the 96Mbps limitation.
20 - User's Manual
MJPEG
720P VGA CIF
15fps
Good
- 9 16
MPEG-4
720P VGA CIF
30fps
6Mbps 1Mbps 512kbps
2 5 16
H.264
1080P 720P
30fps
6Mbps 6Mbps
1 1
Make
VGA CIF
1Mbps 512kbps
3 7