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Polycom RMX 4000 Hardware Guide
1-25
MPM+ and MPMx Media Cards
The RMX unit can work with either MPM+ or MPMx (but not with both
simultaneously) media cards. The card type installed in the system
determines the Card Configuration Mode.
ISDN support is the same for all card types.
G.719 audio algorithm is not supported with MPMx.
Card Configuration Mode Selection During Startup / Restart
When the MCU is started with Version 7.0.x installed and no media cards,
the RMX is set to MPMx Card Configuration Mode by default.
Multi Processor
Module x (MPMx)
Card
The MPMx cards, perform the various RTP, audio and
video processing functions on the RMX
4000 unit. TI
processors are at the core of each MPMx card which are
available in the following assemblies:
• MPMx -S
• MPMx -D
Note: An MPMx located (on the front panel) must face
opposite (same slot level) an RTM LAN card (installed on
the rear panel). For more information, see
"RTM LAN” on
page 1-30.
Table 1-9 Polycom RMX 4000 Component Description (Continued)
Component Description
• The RMX switches between MPMx and MPM+ Card Configuration Modes
when MPM+/MPMx cards are removed or swapped while the system is
running.
• The switch between Card Configuration Modes occurs during the next
restart.
• Installing or swapping MPM+/MPMx cards while the system is off will not
cause a switch in the Card Configuration Mode when the system is restarted
– it will restart in the Card Configuration Mode that was active previous to
powering down.