Nortel Networks NN43021-110 - Manual (Page 26)

26 Product description
• System monitor
• Power Distribution Unit (PDU)
Pedestal (one per column)
• Blower unit
• Thermostat harness Top cap (one per column)
• Air probe harness
System modules
Each type of module is available in AC-powered and DC-powered versions
(except the NT8D36 InterGroup module that does not require power).
AC-power modules generally require a module power distribution unit
(MPDU) to provide circuit breakers for the power supplies. DC-powered
modules do not require an MPDU because a switch on each power supply
performs the same function as the MPDU circuit breakers.
Note: In the UK, DC-powered modules must be used.
The figures in this chapter show a typical configuration for each module. DC
power is represented in these examples.
NT4N41 Core/Network module
This module provides common control and network interface functions. With
the CS 1000M MG and the Meridian 1 PBX 81C CP PIV, two Core/Net
modules are installed side-by-side. With the CS 1000M SG and the Meridian
1 PBX 61C CP PIV, the modules are stacked or mounted side-by-side.
One section of this module houses the common control complex (CPU,
memory, up to four cCNI cards, and mass storage functions). The other
section supports a Conference card, one Peripheral Signaling card, one
3-Port Extender card, and optional network cards.
Note: cCNI card slots 13 and 14 remain empty.
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
.