Nortel Networks NN43021-110 - Manual (Page 27)

System modules 27
Each Core/Network module houses up to four NT8D04 Superloop Network
Cards for a total of 16 network loops. Superloop Network cards are
cabled to the backplane of an IPE module. In a typical configuration, one
conference/TDS card is configured in the module, leaving 14 voice/data
loops available.
Figure 7 "NT4N41 cPCI Core/Network module" (page 27) illustrates an
NT4N41 Core/Network module.
Core side
The Core side of the module contains the circuit cards that process calls,
manage network resources, store system memory, maintain the user
database, and monitor the system. These circuit cards also provide
administration interfaces through a terminal, modem, or enterprise IP
network.
The Core side runs in redundant mode: one Core operates the system while
the other runs diagnostic checks and remains ready to take over if the active
Core fails. Both Cores are connected to each Network group depending on
hardware configuration. If one Core fails, the second Core immediately takes
over call processing. The Core shelf backplane is a compact PCI data bus.
Figure 7
NT4N41 cPCI Core/Network module
Network side
The Network side of this module contains the cards for half of the Network
group 0. The other half of Network group 0 resides in the second core
network module.
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Large System Overview
NN43021-110 01.03 Standard
Release 5.0 18 February 2008
Copyright © 2003-2008, Nortel Networks
.