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24 Overview of the PRI Gateway
Figure 1
Position of the PRI Gateway in the Communication Server 1000E system
The PRI Gateway supports four E1/T1 spans that can be expanded to eight
E1/T1 spans. In addition, the PRI Gateway:
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Media Gateway 1000E PRI Gateway Installation and Commissioning
Copyright © 2007, Nortel Networks
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emulates and is configured as a Media Gateway 1000E
is fully compliant with the E1/T1 alarms and Integrated Services Digital
Network (ISDN) protocols of the CE-MUX card
uses one downloadable D-channel daughterboard to serve two E1/T1
spans
has onboard clock reference functionality (eliminates the need for a
clock controller daughterboard), which is system-software transparent
supports full flexible configuration so that:
— each of the E1/T1 spans in the PRI Gateway can be configured as
E1 or T1
— multicountry E1/T1 ISDN protocols can be configured for each span;
each E1/T1 span can be configured with any PRI protocol variant or
interface type, for example, DPNSS, Euro ISDN, NI2, MCDN
has optional onboard implementation of DASS and DPNSS functionality
Nortel Communication Server 1000
NN43041-311 01.01 Standard
Release 5.0 30 May 2007
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