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VPort P06HC-1MP-M12-CAM36
Инструкция по эксплуатации Страница: 49

Moxa VPort P06HC-1MP-M12-CAM36 [49/69] Vport p06hc 1mp m12 system configuration

VPort P06HC-1MP-M12 System Configuration

4-27

Max. FPS (Frame per second)

Setting Description Default

Maximum frame rate The maximum frame rate is different to accommodate different

modulations of video input. Administrators can also set up the

maximum frame rate to optimize bandwidth use.

NTSC: 1, 3, 5, 10, 15, 20, 25, 30

PAL: 1, 3, 5, 8, 12,16, 20, 25

30 for NTSC, 25 for

PAL

NOTE

Frame rate (frames per second) is determined by the resolution, image data size (bit rate), and transmission

traffic status. The Administrator and users can check the frame rate status in the FPS Status on the VPort’s web

homepage.

Video Quality Control

Video Quality Control is used to optimize the bandwidth of the MPEG4 video stream. There are 2 modes for

video quality control.

Setting Description Default

Fixed bit rate

(only for H.264)

The administrator can fix the bandwidth to tune the video

quality and FPS (frames per second) to the optimum

combination.

Different resolutions have

different bandwidth parameters.

The VPort will tune the video performance according to

the

bandwidth. A higher bandwidth means better quality and

higher FPS.

Stream 1: 5400 Kbps

Stream 2: 4000 Kbps

Fixed Quality The administrator can set the image quality to one of 5

standards: Medium, Standard, Good, Detailed, or

Excellent. The VPort will tune the bandwidth and FPS

automatically to the optimum combination.

Good

CBR Pro?

General CBR (constant bit rate) configuration limits throughput to 1 second, but since video streaming is

designed to transmit immediately to shorten latency time, network throughput may experience a burst in

action during short time periods, in which case packet loss will occur if the network bandwidth buffer is not

large enough. When packet loss occurs, images will show a mosaic effect. For this reason, the VPort supports

an advanced CBR Pro™ function, which can enable the flow control of image packets to ensure no packet loss

for limited bandwidth transmissions, such as on xDSL or wireless networks.

Image without packet loss Image with packet loss

Moxa VPort P06HC-1MP-M12-CAM36 [49/69] Vport p06hc 1mp m12 system configuration

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