System modules 25
Figure 7 "NT4N41 cPCI Core/Network module" (page 25) 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.
The CS 1000M MG and Meridian 1 PBX 81C CP PIV support a Fiber Network Fabric network system with a FIJI card. The double slot FIJI (NTRB33AF) card is installed in slots 8 and 9 on the Net side of the Core/Net module, while the single slot FIJI (NTRB33BBE5) card is installed in slot 9 on the Net side of the Core/Net module.
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Large System Overview
30 September 2008