Polycom DOC2702A User Manual

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Chapter 2-Conference Profiles
Polycom, Inc.
2-5
Guidelines
Only H.264 Base and High Profile video protocols are supported in Video Switching 
Conferences.
Video Switching conferences can be set to one of the following resolutions, depending 
on the capabilities of the endpoints connecting to the conference:
H.264 1080p60 (Symmetrically, at bit rates of up to 6Mbps).
HD1080p60
H.264 1080p30
H.264 720p30
H.264 720p60
H.264 SD 30
H.264 CIF (from version 7.6)
H.263 CIF (from version 7.6)
H.261 CIF (from version 7.6)
Video Switching conferencing mode is unavailable to ISDN participants.
Video Switching uses fewer system resources than CP: only one CIF video resource per 
participant for any resolution (including HD). Table 2-1 lists the resources available to 
VSW conferences by line rate and card type.
* 
Capacity numbers are for maximum capacity card assemblies. These numbers may be lower 
when LPR and/or encryption are enabled.
Table 2-2 lists the recommended number of connections at HD1080p resolution for fully 
configured and licenced RealPresence Collaboration Server (RMX) systems with MPMx 
cards. For detailed resource capacity information see the relevant RMX Hardware 
Guide.
The maximum supported video conference size is 160 participants with the MPM+ card 
and 180 participants with the MPMx card. 
The display aspect ratio is 4x3 or 16x9.
Table 2-1  
VSW Resource Capacity Line Rate
Resource Type
Maximum Possible Resources Per Card* 
MPM
MPM+
MPMx
VSW 2Mbps
40
80
80*
VSW 4Mbps
40
40
40*
VSW 6Mbps
-
20
20*
Table 2-2  
Maximum Number of HD1080p Connections by Line Rate
Line Rate/Participants
RMX 1500
RMX 2000
RMX 4000
Up to 2Mbps
80
160 
320 
4Mbps
40
80 160 
6Mbps (MPM+/MPMx)
20
40
80