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Polycom RMX 2000 Hardware Guide
1-9
RTM ISDN
The RTM ISDN card connects directly to an MPM card. The RTM ISDN
card routes data between the MPM 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 on the rear panel of the RMX interfaces
between the RMX unit and the ISDN/PSTN switch. Up to two RTM ISDN
cards can be installed in one RMX 2000.
An RTM ISDN card must connect directly to an MPM board:
• In an RMX with a single MPM board – the RTM ISDN card must be
installed in the rear panel slot on the
same level as the MPM board
• In an RMX with two MPM boards – the RTM ISDN card can be
installed in either of the two rear panel card slots
Each RTM ISDN card includes the following connections:
• 12 E1/T1 PRI lines available for connecting 7 E1 and 9 T1 PRI lines
•1 LAN port
Figure 1-3 RMX 2000 RTM ISDN Rear Panel Layout
LAN & LEDs
E1/T1 connections
H/S LED
The RTM-ISDN card supports 200 participants, regardless of whether the spans
are T1 or E1.