Polycom RealPresence RMX 4000 Hardware Manual page 49

RealPresence Collaboration Server (RMX) 4000 Components and Components Replacement
RTM ISDN Card
The RTM ISDN card connects directly to an MPMx/MPMRx. The RTM ISDN card routes data between the
MPMx/MPMRx cards and components of the system, converts ISDN T1/E1 media to IP packets and
provides connectivity to external ISDN networks.
The RTM ISDN card is installed in the rear panel of the RMX interfaces between the RMX unit and the ISDN
switch. In an RMX with a single MPMx/MPMRx card, the RTM ISDN card must be installed in the rear panel
slot on the same level as the MPMx/MPMRx card. In an RMX with at least two MPMx/MPMRx cards, the
RTM ISDN card can be installed in any two rear panel card slots.Up to two RTM ISDN cards can be installed
in one RMX 4000.
Two RTM ISDN cards are available as below:
●
RTM ISDN card - 12 PRI ports, one LAN port
●
RTM ISDN card - 9 PRI ports, four LAN ports
RTM ISDN card - 12 PRI ports, one LAN port
The rear panel layout for the ISDN card is show next.
RTM ISDN card - 12 PRI ports, one LAN port rear panel layout
The RTM ISDN card provides following ports:
● 12 PRI ports:
Any PRI port can work as either E1 or T1 port, and each ISDN card can support up to 7 E1 or 9 T1
ports. With two ISDN cards equipped, a total of 14 E1 or 18 T1 ports can be used for connecting
external ISDN networks.
.
Note: E1 and T1
E1 and T1 spans cannot be connected simultaneously to the same card, therefore, it is not possible
to have a mixed E1 and T1 ISDN Network Service
● One 1Gb LAN port:
Note: 200 audio participants
The RTM ISDN card supports 200 audio participants, regardless of whether the spans are E1 or T1.
Polycom, Inc. 49