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Rtm isdn, Rtm isdn -27 – Polycom RMX DOC2548A User Manual

Page 33

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Polycom RMX 4000 Hardware Guide

1-27

RTM ISDN

The RTM ISDN card connects directly to an MPM+. 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 4000
An RTM ISDN card must connect directly to an MPM+ card:

In an RMX with a single MPM+ card – the RTM ISDN card must be

installed in a rear panel slot at the same level as the MPM+ card

In an RMX with two MPM+ cards – the RTM ISDN card can be

installed in any of the rear panel card slots. Up to a total of 14 E1 or 18

T1 PRI cables can be installed with two MPM+ and RTM ISDN cards

Each RTM ISDN card includes the following connections:

1 LAN port

7 E1 or 9 T1 PRI lines that can be plugged into any of the 12

connections as shown in Figure 1-12

Figure 1-12

RMX 4000 RTM ISDN Rear Panel Layout

.

Standby button

Toggle between CPU activation and standby.

Table 1-8

RMX 4000 Rear Panel - RTM-IP 4000 Component Description

Item

Description

LAN & LEDs

E1/T1 connections

H/S (Hot-swap) LED

With the RMX 4000, you can either have a dedicated E1 or T1 Type Network
Service. It is not possible to have a mixed E1 and T1 ISDN Network Service.