Vivotek ND8401 User Manual download pdf (Page 21)

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User's Manual - 21

In terms of local display, the default stream 1 for live view can be congured 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

efcient leverage of system resources. If you disable the Auto Stream Size function and

manually congure your stream settings, you must comply with the limitations listed above.

You may need to congure 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:

Congure the Recording setting in Conguration > 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 conguration 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 congure 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

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 200 201

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Vivotek ND8401 User Manual Page 21