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30 System components
Figure 3
PRI Gateway functional block diagram
New components
The PRI Gateway contains the following new components:
•
•
Existing components
The following existing hardware components are included in the PRI
Gateway:
•
•
Media Gateway 1000E PRI Gateway Installation and Commissioning
Copyright © 2007, Nortel Networks
.
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 that includes power supply, backplane and fan
Media Gateway Controller (MGC) (NTDW60BA)
up to two DSP daughterboards used with the MGC:
— 96-port daughterboard (NTDW64AA)
— 32-port daughterboard (NTDW62AA)
Nortel Communication Server 1000
NN43041-311 01.01 Standard
Release 5.0 30 May 2007
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