Cisco TelePresence System C20 Administrator's Manual page 56
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- Reference manual (195 pages) ,
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Cisco TelePresence System Quick Set C20 / C20 Plus and Profiles using C20
Contents
Introduction
Video Input Source [1..2] OptimalDefinition Profile
Adjust how rapidly the system will increase the transmitted resolution when increasing the
bandwidth. NOTE: Requires that the Video Input Source Quality is set to Motion.
Normal: Use this setting for normal to poorly lit environment. If the source is a camera with
1920x1080p60, the system will transmit 1920x720p60 at about 2.2Mb/sec and above with this
setting set to normal.
Medium: Requires better than normal and consistent lighting and good quality video inputs. If the
source is a camera with 1920x1080p60, the system will transmit 1920x720p60 at about 1.4Mb/
sec and above with this setting set to medium.
High: Requires good lighting conditions for a good overall experience and good quality video
inputs. If the source is a camera with 1920x1080p60, the system will transmit 1920x720p60 at
about 1.1Mb/sec and above with this setting set to high.
Requires user role: ADMIN
Value space: <Normal/Medium/High>
Ref: Table 1 and Table 2.
Example: Video Input Source 1 OptimalDefinition Profile: Normal
Table 1: Optimal definition for systems supporting 1080p
w288p30
w448p30
Normal
256 kbit/s
512 kbit/s
Medium
128 kbit/s
384 kbit/s
High
128 kbit/s
256 kbit/s
Table 2: Optimal definition for systems supporting 720p60
w144p60
w288p60
Normal
128 kbit/s
512 kbit/s
Medium
128 kbit/s
384 kbit/s
.
High
128 kbit/s
256 kbit/s
Video Input Source [1..2] OptimalDefinition Threshold60fps
For each video input, this setting tells the system the lowest resolution where it should transmit
60fps. So for all resolutions lower than this, the maximum transmitted framerate would be 30fps,
while above this resolution 60fps would also be possible, if the available bandwidth is adequate.
Requires user role: ADMIN
Value space: <512_288/768_448/1024_576/1280_720/Never>
512_288: Set the threshold to 512x288.
768_448: Set the threshold to 768x448.
1024_576: Set the threshold to 1024x576.
1280_720: Set the threshold to 1280x720.
Never: Do not set a threshold for transmitting 60fps.
Example: Video Input Source 1 OptimalDefinition Threshold60fps: 1280_720
D14637.06
Profile C20 and Quick Set C20 Administrator Guide TC4.2, July 2011.
Copyright © 2010-2011 Cisco Systems, Inc. All rights reserved.
Web interface
w576p30
720p30
1080p30
768 kbit/s
1152 kbit/s
2560 kbit/s
512 kbit/s
1152 kbit/s
1920 kbit/s
512 kbit/s
768 kbit/s
1472 kbit/s
w448p60
w576p60
720p60
1152 kbit/s
1472 kbit/s
2240 kbit/s
768 kbit/s
1152 kbit/s
1920 kbit/s
512 kbit/s
768 kbit/s
1152 kbit/s
Advanced settings
Advanced settings
Password protection
Video Input Source [1..2] Quality
When encoding and transmitting video there will be a tradeoff between high resolution and high
framerate. For some video sources it is more important to transmit high framerate than high
resolution and vice versa. The Quality setting specifies whether to give priority to high frame rate or
to high resolution for a given source.
Requires user role: ADMIN
Value space: <Motion/Sharpness>
Motion: Gives the highest possible framerate. Used when there is a need for higher frame rates,
typically when a large number of participants are present or when there is a lot of motion in the
picture.
Sharpness: Gives the highest possible resolution. Used when you want the highest quality of
detailed images and graphics.
Example: Video Input Source 1 Quality: Motion
Video DefaultPresentationSource
Define which video input source shall be used as the default presentation source (when you
press the Presentation key on the remote control). The input source is configured to a video input
connector.
Requires user role: USER
Value space: <1..2>
Range: Select the video source to be used as the presentation source.
Example: Video DefaultPresentationSource: 2
Video Input DVI [2] Type
The official DVI standard supports both digital and analog signals. In most cases the default
AutoDetect setting can detect whether the signal is analog RGB or digital. However, in some rare
cases when DVI-I cables are used (these cables can carry both the analog and digital signals) the
auto detection fails. This setting makes it possible to override the AutoDetect and select the correct
DVI video input.
Requires user role: ADMIN
Value space: <AutoDetect/Digital/AnalogRGB>
AutoDetect: Set to AutoDetect to automatically detect if the signal is analog RGB or digital.
Digital: Set to Digital to force the DVI video input to Digital when using DVI-I cables with both
analog and digital pins and AutoDetect fails.
AnalogRGB: Set to AnalogRGB to force the DVI video input to AnalogRGB when using DVI-I
cables with both analog and digital pins and AutoDetect fails.
Example: Video Input DVI 2 Type: AutoDetect
56
Administrator guide
Appendices
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