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RealPresence Collaboration Server (RMX) 4000 Hardware Guide
Table 1-10
Item
Serial
USB
Standby button
RTM ISDN
The RTM ISDN card connects directly to an MPM+/MPMx. The RTM ISDN card routes
data between the MPM+/MPMx 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. In an RMX with a single MPM+/MPMx card – the RTM
ISDN card must be installed in the rear panel slot on the same level as the MPM+/MPMx
card. In an RMX with at least two MPM+/MPMx 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. Up to a total of 14 E1 or 18 T1
PRI cables can be installed with two RTM ISDN cards.
Each RTM ISDN card includes the following connections:
•
•
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.
Figure 1-17
ISDN/PSTN Clock Source
Each RTM ISDN card has its own primary and secondary clock source. The first span to
synchronize becomes the primary clock source and the second span to synchronize becomes
the secondary clock source. This clock is used to synchronize ISDN spans only (it is not the
system clock).
1-26
RMX 4000 Rear Panel - RTM-IP 4000 Component Description (Continued)
Description
A 10/100 ShMG Shelf Manager connection.
For debugging purposes only.
USB key connection
Toggle between ON/OFF and standby. Use this button to either perform
Diagnostics or Software Recovery on the RMX after turning the system
ON.
Short press (2 seconds) - MPMx Diagnostics.
Long press - (10 seconds) Media and RTM IP 4000 Software Recovery.
1 LAN port
7 E1 or 9 T1 PRI lines that can be plugged into any of the 12 connections as shown in
Figure 1-17.
LAN & LEDs
H/S (Hot-swap) LED
RMX 4000 RTM ISDN Rear Panel Layout
E1/T1 connections & LEDs
Polycom, Inc.
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