Guidelines - Polycom RMX 1500 Administrator's Manual

Chapter 2-Additional Conferencing Information

Guidelines

Enabling Video Switching
2-26
Table 2-6 lists the recommended number of connections at HD1080p
resolution for fully configured and licenced RMX systems.
The numbers in Table 2-6 are for MPM card assemblies with maximum
resource capacities. For detailed resource capacity information see the relevant
RMX Hardware Guide.
Table 2-6 Maximum Number of HD1080p Connections by Line Rate
Line Rate/Participants
Up to 2Mbps
4Mbps
6Mbps (MPM+/MPMx)
• The display aspect ratio is 4x3 or 16x9.
• Site names, skins, etc. are not supported in Video Switching.
• Video forcing is enabled at the conference and participant levels.
• Endpoints that do not support HD or are unable to meet these
requirements connect as Secondary (audio only).
For the MCU to run Video Switching conferences the following criteria
must be met:
• The HD_THRESHOLD_BITRATE flag must be set in the System
Configuration. The value of this flag is the system minimum threshold
bit rate.
The HD_THRESHOLD_BIT RATE flag is responsible for negotiation only,
It does not guarantee that the endpoint will open an HD channel or transmit on
an opened HD channel.
• The line rate selected in the conference Profile must be the same as or
higher than that specified by the HD_THRESHOLD_BITRATE flag.
• The Video Switching option must be selected in the profile. For more
information see "Defining Profiles" on page 1-9.
RMX 1500 RMX 2000
80 160
40
20
RMX 4000
320
80 160
40 80