Cisco Cisco TelePresence MX700 Manuale Di Manutenzione

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D15331.02 MX700 and MX800 Administrator Guide CE8.1, APRIL 2016.  
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45
Cisco TelePresence MX700 and MX800
Administrator Guide
Typical resolutions used for different optimal definition profiles, call rates and frame rates
Frame rate Optimal Definition 
Profile
Call rate
768 kbps 1152 kbps 1472 kbps 2560 kbps
4 Mbps
*
6 Mbps
*
H
.26
 
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nl
y i
n S
IP c
al
ls
)
30 fps
Normal
1280 × 720 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
Medium
1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
High
1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
60 fps
Normal
768 × 448 1024 × 576 1280 × 720 1280 × 720 1280 × 720 1280 × 720
Medium
1024 × 576 1280 × 720 1280 × 720 1280 × 720 1280 × 720 1280 × 720
High
1280 × 720 1280 × 720 1280 × 720 1280 × 720 1280 × 720 1280 × 720
H
.26
4
30 fps
Normal
1024 × 576 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
Medium
1280 × 720 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
High
1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
60 fps
Normal
640 × 360
768 × 448 1024 × 576 1280 × 720 1280 × 720 1920 × 1080
Medium
768 × 448 1024 × 576 1024 × 576 1280 × 720 1920 × 1080 1920 × 1080
High
1024 × 576 1280 × 720 1280 × 720 1920 × 1080 1920 × 1080 1920 × 1080
H.265 is preferred over H.264, and the maximum bit rate for H.265 is 3 Mbps. When the user sets a higher bit rate, the 
codec will still use H.265 at 3 Mbps as long as all codecs involved supports H.265.
Adjust the video quality to call rate ratio
Sign in to the web interface and navigate to 
Setup > 
Configuration
.
1.  Go to 
Video > Input > Connector n > Quality 
and set the 
video quality parameter to 
Motion.
2.  Go to 
Video > Input > Connector n > OptimalDefinition > 
Profile
 and choose the preferred optimal definition profile. 
3.  Go to 
Video > Input > Connector n > OptimalDefinition 
> Threshold60fps 
to set the threshold below which the 
maximum transmitted frame rate will be 30 fps.
Optimal definition profile
The optimal definition profile should reflect the lighting conditions 
in the video conferencing room and the quality of the camera 
(video input source). The better the lighting conditions and the 
better the quality of the camera, the higher the profile should be 
used. In good lighting conditions, the video encoder will provide 
better quality (higher resolution or frame rate) for a given call rate.
Generally, the Medium profile is recommended. However, if the 
lighting conditions are very good, we recommend that you test 
the endpoint on the various Optimal Definition Profile settings 
before deciding on a profile. The High profile may be set in order 
to increase the resolution for a given call rate. 
Some typical resolutions used for different optimal definition 
profiles, call rates and transmit frame rates are shown in the table. 
The resolution and frame rate must be supported by both the 
calling and called systems. 
Threshold for sending video at 60 fps
Use the Video Input Connector n OptimalDefinition 
Threshold60fps setting to decide when to allow sending video at 
60 fps. 
For all resolutions lower than this threshold, the maximum 
transmitted frame rate will be 30 fps; for higher resolutions, 60 fps 
is possible if the available bandwidth is adequate.
Video input quality settings
The Video Input Connector n Quality setting must be set to 
Motion for the optimal definition settings to take any effect. With 
the video input quality set to 
Sharpness, the endpoint will transmit 
the highest resolution possible, regardless of frame rate. 
Introduction
Configuration
Peripherals
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Configuration