Nortel Networks NN43021-110 - Manual (Page 14)

14 Product description
All Large Systems consist of Universal Equipment Modules (UEM) stacked
one on top of another to form a column. Each column contains a pedestal,
a top cap, and up to four modules. A system can have one column or
multiple columns.
Each UEM is a self-contained unit that houses a card cage and backplane,
power and ground cabling, power units, input/output (I/O) panels, circuit
cards, and cables. When the card cage is installed, the function of the
UEM is established and the module is no longer "universal." The system
modules are as follows:
• NT4N41 Core/Network module for CS 1000M MG, CS 1000M SG,
Meridian 1 PBX 81C CP PIV, and Meridian 1 PBX 61C CP PIV
• NT5D21 Core/Network module for CS 1000M HG, CS 1000M SG, CS
1000M MG, Option 51C, 61C and 81C
• NT8D35 Network module required for CS 1000M MG and Meridian
1 PBX 81C CP PIV, Option 81C
• NT8D37 Intelligent Peripheral Equipment (IPE) module (required for
Large Systems)
• Fiber Remote IPE module (optional for Large Systems Multi Group)
• Carrier Remote IPE module (optional for Large Systems)
The pedestal generally houses a blower unit, air filter, Power Distribution
Unit (PDU), and System Monitor.
The top cap provides airflow exits, I/O cable entry and exit, and overhead
cable-rack mounting. Thermal sensor assemblies for the column are
attached to a perforated panel on top of the highest module in the column,
under the top cap.
A system can have one column or multiple columns. To comply with FCC
and CSA standards for containing electromagnetic interference and radio
frequency interference (EMI/RFI), spacer kits connect the columns in a
multiple-column system. If a Signaling Server is added to a previously
CISPR Class B system (previously used in some specific countries), the
system is now Compliant to Class A.
System options
This document includes information on the following Large Systems:
• CS 1000M HG and Meridian 1 Option 51C: enhanced common control
complex, single CPU, and one half network group
• CS 1000M SG, Meridian 1 PBX 61C CP PIV, and Meridian 1 Option 61C:
enhanced common control complex, dual CPU, and one full-network
group
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
.