VIVOTEK Vivotek Network Router ND4801 用户手册
VIVOTEK
20 - User's Manual
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.
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
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.
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:
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.
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 configure 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