Polycom DOC2559A - Manual (Page 12)

Chapter 1- Hardware Description
1-6
In HD Video Switching conferences, an RMX with four MPM+ cards can
support up to 160 participants at HD1080p resolution at bandwidths of up
to 4Mbps and 80 participants at HD1080p resolution at bandwidths of up
to 6 Mbps.
MCU “Mode” Guidelines
MPMx and MPM+ Modes
• MPMx and MPM+ cards installed in the system cannot be used
simultaneously. Therefore, the RMX can operate in either an MPM+
or MPMx mode.
• MPMx Mode is the mode in which the RMX operates to fully utilize
the increased power and capacity of MPMx cards.
• ISDN support is the same as for MPM+/MPMx cards.
• G.719 audio algorithm is not supported with MPMx.
Operating Mode Selection During Startup / Restart
When started with Version 7.0 installed, the RMX enters MPMx Mode by
default when no media cards are installed.
CIF 320
SD30 120
HD720p 80
HD1080p 40
720p VSW 4Mb 160
1080p VSW 4Mb 160
1080p VSW 6Mb 80
Table 1-2 MPM+ Resource/Port Capacity
Resource Type Maximum Capacity (4 MPM+ Cards)
RMX memory size is listed in the Administration > System Information properties
box.