Madge Networks 57-91 User manual

100-240-01 i
Backup PSU Installation Guide
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ii Backup PSU Installation Guide
Mandatory regulations
General requirements
The sections that follow outline the mandatory regulations governing the installation and operation
of the Backup PSU. Adherence to these instructions is necessary to ensure that regulatory
compliance requirements are met. For safe operation and servicing, the socket-outlet shall be
installed near the equipment and shall be easily accessible. This equipment must be earthed.
Federal Communications Commission (FCC)
This equipment has been tested and found to comply with the limits for a class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference and (2) this device must accept any
interference that may cause undesired operation.
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100-240-01 iii
European Directives
The CE mark indicates that the requirements of the following European Directives have been met
• 89/336/EEC Electromagnetic Compatibility Directive
• 73/23/EEC Low Voltage Directive
• 93/68/EEC CE Marking Directive
Warning: This is a Class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
Industry Canada
This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur
du Canada.
Food and Drug Administration (FDA)
The product complies with FDA 21 CFR 1040.10 and 1040.11 regulations which govern the safe use
of lasers.
Acknowledgments
Madge, the Madge Logo, Cellrunner, Collage, Madgefax, Madge Stack, Switching to ATM, and
TrueView, are trademarks, and in some jurisdictions may be registered trademarks, of Madge
Networks or its affiliated companies. Other trademarks appearing in this document are the property
of their respective owners.
Release date: August 1996
© Copyright 1996 Madge Networks. All Rights Reserved.
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iv Backup PSU Installation Guide
Safety information: read this first
The following icons are used throughout the guide for safety purposes. You are advised to read, and
understand clearly, any procedure marked with these icons.
Hazard: A hazard icon calls attention to a procedure in the installation manual which, if not correctly
performed, could result in injury or loss of life. Do not proceed beyond a section marked by this
symbol until you fully understand the procedure and can meet the required conditions.
Warning: A warning icon indicates the presence of a hazardous voltage.
!
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100-240-01 v
Informations de sécurité: lissez attentivement le passage suivant, avant toute
autre manipulation
Les icônes suivantes sont utilisées tout au long de ce guide pour les informations de sécurité.
Danger: Une icône de DANGER avertit qu'il existe une procédure spécifique dans le manuel
d'installation, si celle-ci n'est pas scrupuleusement respectée, l'utilisateur prend le risque d'une
blessure grave, voir la perte de vie. N'avancez pas dans une section qui est marquée par cette icône
avant de comprendre entièrement la procédure en question. Assurez-vous de bien remplir les
conditions nécessaires.
Attention: Une icône d'avertissement indique la présence d'un voltage dangereux.
!
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vi Backup PSU Installation Guide
Sicherheitsinformation: zuerst lesen
Die folgenden Symbole werden in diesem Handbuch aus Gründen Ihrer Sicherheit verwendet. Wir
raten Ihnen jede Prozedur, die mit diesen Symbolen gekennzeichnet ist, aufmerksam zu lesen und
genau zu verslehen.
Gefahr: Das Gefahrsymbol macht auf jene Verfahren im Installationshandbuch aufmerksam, die zu
Verletzung oder Tod führen können, wenn die Prozedur nicht richtig ausgeführt wird. Fahren Sie
unter keinen Umständen fort, wenn Sie dieses Symbol sehen, bevor Sie die Prozedur verslehen und
die notwendigen Voraussetzungen erfüllen können.
Warnung: Das Warnsymbol weist auf vorliegende, gefährliche Stromspannung hin.
!
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100-240-01 vii
Safety information: associated documents
To make sure you do not injure yourself or damage your Madge product:
English Read Madge Networks Safety Guidelines (part number: 102-002) before
installing the product.
Chinese
Dansk Læs Retningslinjer for sikkerhed mht. Madge netværk (delnummer: 102-002),
før produktet installeres.
Nederlands Lees eerst de Richtlijnen voor de veiligheid van Madge netwerken
(artikelnummer 102-002) voordat u dit product installeert.
Suomi Lue Madge-verkkojen turvaohjeet (osa numero: 102-002) ennen tuotteen
asennusta.
Français Lire les Règles de sécurité pour réseaux Madge (Référence No : 102-002) avant
d'installer le produit.
Deutsch Vor dem Installieren des Produkts die Sicherheitsrichtlinien für Madge
Netzwerke (Teilenummer: 102-002) lesen!
Greek
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viii Backup PSU Installation Guide
Hebrew
Italiano Leggere le Linee orientative per la sicurezza delle reti Madge (n. parte: 102-002)
prima di installare il prodotto.
Japanese
Norsk Les Sikkerhet for Madge-nettverk (delnr. 102-002) før du installerer produktet.
Português Leia as Instruções de Segurança dos Produtos Madge Networks (ref.a 102-002)
antes de instalar o produto.
Español Antes de instalar el producto, lea las Normas de seguridad de las redes Madge
(número de pieza: 102-002).
Svenska Läs gärna "Madge nätverk: säkerhetsföreskrifter" (delnummer: 102-002) innan du
installerar produkten.
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100-240-01 ix
Contents
Chapter 1 Introduction ...............................................................................................................................1
About the Backup PSU .............................................................................................................1
About the Collage 740 Backbone ATM Switch ......................................................................2
Power sockets on the Collage 740 rear panel ...............................................................3
PSU Module ...................................................................................................................4
Chapter 2 Installing the Backup PSU .......................................................................................................5
Prerequisites ..............................................................................................................................6
Parts and tools ................................................................................................................6
Associated manuals ........................................................................................................6
Electrical equipment .................................................................................................................7
Unpacking the unit ...................................................................................................................8
Rack-mounting the Backup PSU .............................................................................................9
Connecting the power cables .................................................................................................11
Checking the cord set ..................................................................................................12
Connecting the Backup PSU to the Collage 740 ......................................................13
Connecting the Backup PSU to the AC outlet ..........................................................15
Installing a second PSU Module into the Backup PSU ............................................16
Removing a PSU Module from the Backup PSU .................................................................17
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xBackup PSU Installation Guide
Appendix A Technical specifications ......................................................................................................... 19
Physical specifications ............................................................................................................ 19
Dimensions .................................................................................................................. 19
Power requirements .................................................................................................... 20
Environmental specifications ..................................................................................... 20
Agency approval .......................................................................................................... 21
Ordering information .............................................................................................................. 22
Appendix B Technical support services .................................................................................................... 23
Index .................................................................................................................................................................... 31
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100-240-01 1
Introduction
Chapter 1
Introduction
This chapter describes the the Backup PSU, the PSU Module, and the Collage 740 Backbone ATM
Switch.
About the Backup PSU
The Backup PSU provides the Collage 740 Backbone ATM Switch with increased resilience by
insuring against the possibility of a fault in the internal PSU Module. When you connect a
Backup PSU to a Collage 740, the Backup PSU provides power to the switch’s backplane. The
Collage 740’s internal PSU Module and the PSU Module in the Backup PSU share the power load to
the Collage 740, so that if one power supply fails, the other unit supplies the full power load.
You can connect the Backup PSU to one Collage 740 for each PSU Module that is installed. The
Backup PSU supports a maximum of two PSU Modules, called PSU-01 and PSU-02, which means
you can connect it to a maximum of two Collage 740s.
Note: The Backup PSU package contains one PSU Module, one mains cable, and one DC power
cable. To connect the Backup PSU to a second Collage 740, you need one additional PSU Module
(part number: 57-77) and one additional cable set (part number: 57-98).

Chapter 1 Introduction
2 Backup PSU Installation Guide
Figure 1.1 Backup PSU with two PSU Modules installed
About the Collage 740 Backbone ATM Switch
The Collage 740 Backbone ATM Switch is a high-performance Asynchronous Transfer Mode (ATM)
switch for building and campus backbone applications, high-performance centralized servers, and
power-user environments.

Chapter 1 Introduction
100-240-01 3
Introduction
Power sockets on the Collage 740 rear panel
The rear panel of the Collage 740 has two power sockets: an AC mains socket and a DC Backup PSU
socket to support a Backup PSU. The primary AC mains socket enables you to connect the power
cable provided with the Collage 740, to supply power to the internal PSU Module.
The auxiliary DC backup socket enables you to connect a Backup PSU to the Collage 740.
Figure 1.2 Rear panel of the Collage 740

Chapter 1 Introduction
4 Backup PSU Installation Guide
PSU Module
The PSU Module provides power via the backplane of the Collage 740 or the Backup PSU.
You can install a maximum of one PSU Module into the Collage 740, and a maximum of two
PSU Modules into the Backup PSU. No external connectors are required. You can order a PSU
Module by quoting part number 57-77.
The front panel of the PSU Module has an LED labelled ‘Power’ that indicates the status of the
PSU Module.
Figure 1.3 PSU Module

100-240-01 5
Installing the
Backup PSU
Chapter 2
Installing the Backup PSU
Hazard: To make sure you do not injure yourself or damage your Madge product, always refer to the
installation manual and the Madge Safety Guide (part number: 100-002) before installing hardware. If
you are in any doubt, contact your customer support representative.
When you install the Backup PSU for the first time, the installation procedure consists of the
following tasks:
1 Rack-mounting the Backup PSU
The Backup PSU is designed to fit into a standard 480 mm (19 in.) rack.
2 Connecting the power cables
Warning: Electrical current from power, telephone, and communications cables is hazardous. To
avoid an electrical shock when installing or moving the product or devices attached to the product,
connect and disconnect cables as shown in the Madge Safety Guide (part number: 100-002).
!
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Chapter 2 Installing the Backup PSU
6Backup PSU Installation Guide
Prerequisites
This section lists the parts and tools you require to install the Backup PSU.
Note: Before you attempt to power up the Backup PSU, read through the entire installation
procedure.
Parts and tools
To install the Backup PSU, you need the following parts and tools:
• 3/8 in. flat-blade screwdriver for the installation screws
• 1 electrostatic discharge (ESD) cord and wrist strap
Associated manuals
When you have installed the Backup PSU according to the instructions in this manual, refer to the
Collage 740 Backbone ATM Switch User Guide (part number: 100-239) for information about setting up
and managing the Collage 740.
The Collage 740 is a software-upgradable product, which means you can expand the functionality of
the switch by downloading new microcode software. The Collage 740 Backbone ATM Switch User Guide
contains information about configuring the Collage 740 with a particular software release. Make sure
the manual is up-to-date for the software release that you have downloaded to the Collage 740.
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Chapter 2 Installing the Backup PSU
100-240-01 7
Installing the
Backup PSU
Electrical equipment
Follow these basic guidelines when working with any electrical equipment:
• Before beginning any procedures requiring access to the interior of the unit, locate the
emergency power-off switch for the room in which you are working.
• Before moving the unit, disconnect all power and external cables.
• If potentially hazardous conditions exist, do not work alone.
• Never assume that power is disconnected from a circuit; always check.
• Do not perform any action that creates a potential hazard to people or makes the equipment
unsafe.
• Carefully examine your work area for possible hazards such as moist floors and ungrounded
power cables.
• Only connect the product to a correctly wired and earthed receptacle.
Warning: Do not attempt to remove the backplate on the rear panel of the Collage 740. Removing
the backplate exposes you to hazardous voltages that could cause injury or loss of life.
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Chapter 2 Installing the Backup PSU
8Backup PSU Installation Guide
Unpacking the unit
When you unpack the Backup PSU, make sure you keep the original packaging materials. You may
need them to store, transport, or return the product.
Check you have received a complete Backup PSU package before installing the unit. If any items are
missing or damaged, please contact Madge Networks’ technical support services immediately. For
information about contacting Madge Networks’ technical support services, see Appendix B.
The Collage 740 package should contain:
• 1 Backup PSU, with 1 PSU Module pre-installed
•1Backup PSU Installation Guide (this manual, part number: 100-240)
• 1 mains power cable
• 1 DC power cable
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Chapter 2 Installing the Backup PSU
100-240-01 9
Installing the
Backup PSU
Rack-mounting the Backup PSU
Note: The Backup PSU chassis weighs 7.1 kg (15.62 Ibs). Another person should be present to
support the unit whilst you secure the Backup PSU with the installation screws.
The Backup PSU occupies 2U, which is 88 mm (3.5 in.), of vertical space in a standard
480 mm (19 in.) rack. The Backup PSU has built-in mounting brackets.
Note: If you are mounting the Backup PSU in a rack, always mount the product before connecting
power cables to it.
Before you mount the Collage 740 in a rack, make sure that:
• There are no power cables connected to the Backup PSU.
• There is 2U, which is 88 mm (3.5 in.), of vertical space above or below the Collage 740 switch
that you plan to connect to the Backup PSU. If you plan to connect the Backup PSU to two
Collage 740 switches, mount the Backup PSU between the switches in the rack.
• The Backup PSU will be situated close enough to the Collage 740 switch such that the
0.5 m (19.69 in.) connection cable will reach both units.
• There is a clearance of 40 mm (1.575 in.) around the sides of the Collage 740 to enable the
internal fans to disperse heat.
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Chapter 2 Installing the Backup PSU
10 Backup PSU Installation Guide
To mount the product in a rack:
1 Position the Backup PSU in the rack by aligning the two holes in the mounting bracket with the
holes in the rack.
Note: If you plan to connect the Backup PSU to two Collage 740 switches, mount the Backup PSU
between the switches in the rack. If the Backup PSU is not mounted directly above or below a
Collage 740 it serves, the DC power cables will not be long enough to connect the devices.
2 With the base of the product supported by another person, secure the Backup PSU in the rack.
3 Make sure the load is distributed evenly in the rack.
Do not use the Backup PSU to support other equipment. This can put excessive strain on the
mounting points and result in damage to the unit.
Hazard: When the switch is installed in a rack, the temperature of the environment surrounding the
device may exceed the ambient temperature of the room. Provide a greater clearance if necessary,
and take care not to block the air vents of the Backup PSU. Blocking the air vents reduces the
amount of air flow and may damage the unit.
!
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