User manual

26 Product description

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System monitor

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Power Distribution Unit (PDU)

Pedestal (one per column)

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Blower unit

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Thermostat harness

Top cap (one per column)

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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 Mer idian 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 Februar y 2008