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34 System components
Figure 4
PRI Gateway functional block diagram
New components
The PRI Gateway contains the following new components:
•
a 128-port DSP Daughterboard (NTDW78). The MGC card can
support two 128-port DSP Daughterboards when the CS 1000 Release
7.0 Extended Media Gateway PRI (MGP) package 418 is equipped.
Existing components
The following existing hardware components are included in the PRI
Gateway:
•
an E1/T1 card (NTDW70AA) that provides a base of four spans and
allows an additional four spans with an expansion daughterboard
(NTDW75AA) for a total of a possible eight spans. The E1/T1 card
includes four additional expansion connectors to allow up to four
existing D-channel (DCH) daughterboards to be equipped to support
DCH Layer 2 (LAP-D) and the UIPE PRI protocols.
•
a 2u gateway chassis (NTDW72) that includes power supply,
backplane and fan
Media Gateway 1000E PRI Gateway Installation and Commissioning
Nortel Communication Server 1000
NN43041-311 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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