Cabletron Systems DLE22-MA User manual

DIGITAL MultiSwitch 700
DLE22-MA, DLE32-MA,
DLE23-MA, and DLE33-MA
Interface Modules User’s Guide

DIGITAL MultiSwitch 700
DLE22-MA, DLE32-MA,
DLE23-MA, and DLE33-MA
Interface Modules User’s Guide
Part Number: 9032627
September 1998
This manual describes how to use the DLE22-MA, DLE23-MA,
DLE32-MA, and DLE33-MA MultiSwitch 700 modules.
Revision/Update Information: This is a new document.

Cabletron Systems reserves the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.
The hardware, firmware, or software described in this manual is subject to change without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL,
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR
THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH
DAMAGES.
Copyright 1998 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Cabletron Systems and LANVIEW are registered trademarks of Cabletron Systems, Inc. Cabletron
Systems reserves the right to make changes in specifications and other information contained in this
document without prior notice. The reader should in all cases consult Cabletron Systems to determine
whether any such changes have been made.
DIGITAL and the DIGITAL logo are trademarks of Digital Equipment Corporation.
All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.
UNITED STATES GOVERNMENT RESTRICTED RIGHTS
The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer
software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the
Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects
is proprietary data belonging to Cabletron and/or its suppliers.
For Department of Defense units, the product is licensed with “Restricted Rights” as defined in the
DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its
successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in
subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at
252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.

FCC Notice — Class A Computing Device:
This equipment generates, uses, and may emit radio frequency energy. The equipment has been type
tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC
rules, which are designed to provide reasonable protection against such radio frequency interference.
Operation of this equipment in a residential area may cause interference in which case the user at his
own expense will be required to take whatever measures may be required to correct the interference.
Any modifications to this device -unless expressly approved by the manufacturer - can void the user's
authority to operate this equipment under part 15 of the FCC rules.
WARNING: Changes or modifications made to this device which are not expressly approved by the
party responsible for compliance could void the user’s authority to operate the equipment.
DOC Notice — Class A Computing Device:
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.
VCCI Notice — Class A Computing Device:
Taiwanese Notice — Class A Computing Device:
CE Notice — Class A Computing Device:
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.
Achtung!
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses
Gerätes Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende
Gegenmaßnahmen verantwortlich ist.
Avertissement!
Cet appareil est un appareil de Classe A. Dans un environnement résidentiel cet appareil peut
provoquer des brouillages radioélectriques. Dans ce cas, il peut être demandé à l'utilisateur de prendre
les mesures appropriées.

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT
IMPORTANT: Before utilizing this product, carefully read this License Agreement.
This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”)
that sets forth your rights and obligations with respect to the Cabletron software program (the
“Program”) contained in this package. The Program may be contained in firmware, chips or other
media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME
BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND
THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT
AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.
CABLETRON SOFTWARE PROGRAM LICENSE
1. LICENSE. You have the right to use only the one (1) copy of the Program provided in this
package subject to the terms and conditions of this License Agreement.
You may not copy, reproduce or transmit any part of the Program except as permitted by the
Copyright Act of the United States or as authorized in writing by Cabletron.
2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the
Program.
3. APPLICABLELAW. This License Agreement shall be interpreted and governed under the laws
and in the state and federal courts of New Hampshire. You accept the personal jurisdiction and
venue of the New Hampshire courts.
EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY
1. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing,Cabletronmakes no warranty, expressed orimplied, concerning the Program (including
its documentation and media).
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE
ACCOMPANYING WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.
2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER
(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS,
PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL,
INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS)
ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT,
EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF LIABILITY FOR CONSEQUENTIALOR INCIDENTAL DAMAGES, OR
ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.

SAFETY INFORMATION
CLASS 1 LASER TRANSCEIVERS
THE DELF3-UI FAST ETHERNET INTERFACE MODULE, DEL05-UI
FDDI PORT INTERFACE MODULE, AND DEL29-UI ATM PORT INTER-
FACE MODULE USE CLASS 1 LASER TRANSCEIVERS. READ THE
FOLLOWING SAFETY INFORMATION BEFORE
INSTALLING OR OPERATING THESE MODULES.
The Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation limits. This
control loop eliminates the need for maintenance checks oradjustments.The output is factory set, and
does not allow any user adjustment. Class 1 laser transceivers comply with the following safety
standards:
• 21 CFR 1040.10 and 1040.11 U.S. Department of Health and Human Services (FDA).
• IEC Publication 825 (International Electrotechnical Commission).
• CENELEC EN 60825 (European Committee for Electrotechnical Standardization).
When operating within their performance limitations, laser transceiver output meets the Class 1
accessible emission limit of all three standards. Class 1 levels of laser radiation are not considered
hazardous.
SAFETY INFORMATION
CLASS 1 LASER TRANSCEIVERS
LASER RADIATION AND CONNECTORS
When the connector is in place, all laser radiation remains within the fiber. The maximum amount of
radiant power exiting the fiber (under normal conditions) is -12.6 dBm or 55 x 10-6 watts.
Removing the optical connector from the transceiver allows laser radiation to emit directly from the
optical port. The maximum radiance from the optical port (under worst case conditions) is
0.8 W cm-2 or 8 x 103W m2sr-1.
Do not use optical instruments to view the laser output. The use of optical instruments to view
laser output increases eye hazard. When viewing the output optical port, power must be
removed from the network adapter.

DECLARATION OF CONFORMITY
Application of Council Directive(s): 89/336/EEC
73/23/EEC
Manufacturer’s Name: Cabletron Systems, Inc.
Manufacturer’s Address: 35 Industrial Way
PO Box 5005
Rochester, NH 03867
European Representative Name: Mr. J. Solari
European Representative Address: Cabletron Systems Limited
Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Equipment Type/Environment: Networking Equipment, for use in a
Commercial or Light Industrial
Environment.
We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged
with this notice conforms to the above directives.
Manufacturer Legal Representative in Europe
Mr. Ronald Fotino Mr. J. Solari
___________________________________ ___________________________________
Full Name Full Name
Principal Compliance Engineer Managing Director - E.M.E.A.
___________________________________ ___________________________________
Title Title
Rochester, NH, USA Newbury, Berkshire, England
___________________________________ ___________________________________
Location Location

DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide vii
CONTENTS
PREFACE
Using This Guide..........................................................................xiii
Intended audience........................................................................xiii
Structure of This Guide.................................................................xiii
Document Conventions................................................................xiv
Related Documentation.................................................................xv
Correspondence............................................................................xv
Documentation Comments ...............................................xv
World Wide Web...............................................................xv
Getting Help..................................................................................xvi
SAFETY
Overview......................................................................................xvii
Safety Requirements..................................................................xviii
CHAPTER 1 INTRODUCTION
1.1 DLE2X-MA and DLE3X-MA Overview.........................................1-1
1.1.1 Connectivity ....................................................................1-3
1.1.2 Full Duplex Switched Ethernet........................................1-3
1.1.3 SmartTrunk.....................................................................1-3
1.1.4 Management...................................................................1-4
1.1.5 Switching Options...........................................................1-4
1.1.6 Standards Compatibility..................................................1-4
1.1.7 LANVIEW Diagnostic LEDs............................................1-4
1.1.8 Year 2000 Compliant......................................................1-5
1.1.9 Runtime IP Address Discovery.......................................1-5
1.1.10 Local Management Features..........................................1-5
1.2 Optional Features........................................................................1-6
CHAPTER 2 NETWORK REQUIREMENTS
2.1 SmartTrunk..................................................................................2-1

Contents
viii DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide
2.2 10BASE-T Network......................................................................2-2
2.3 100BASE-TX Network .................................................................2-2
2.4 100BASE-FX Fiber Optic Network...............................................2-2
CHAPTER 3 INSTALLATION
3.1 Required Tools.............................................................................3-1
3.2 Unpacking the DLE2X-MA and DLE3X-MA.................................3-1
3.3 DLE2X-MA and DLE3X-MA Options............................................3-2
3.4 Installing the DLE2X-MA and DLE3X-MA
Into the DLM6C-AA Chassis3-2
3.5 Connecting to the Network...........................................................3-5
3.5.1 Connecting UTP Cables to Ports 1 Through 24 of the
DLE22-MA and DLE32-MA3-6
3.5.2 Connecting UTP Cables to Ports 1 Through 24 of the
DLE33-MA and DLE23-MA3-8
3.5.3 Connecting a Twisted Pair Segment to the DELTX-UI..3-10
3.5.4 Connecting a Fiber Optic Segment
to the DELFX-UI and DELF3-UI3-12
3.6 Completing the Installation.........................................................3-14
CHAPTER 4 TROUBLESHOOTING
4.1 Using LANVIEW...........................................................................4-1
4.2 DELTX-UI LED.............................................................................4-4
4.3 Troubleshooting Checklist............................................................4-6
4.4 Using the RESET Button .............................................................4-7
CHAPTER 5 LOCAL MANAGEMENT
5.1 Overview......................................................................................5-1
5.2 Local Management Keyboard Conventions.................................5-2
5.3 Management Terminal Setup.......................................................5-3
5.3.1 Console Cable Connection..............................................5-3
5.3.2 Connecting an Uninterruptible Power Supply (UPS).......5-4
5.3.3 Management Terminal Setup Parameters ......................5-6
5.3.4 Telnet Connections .........................................................5-7
5.4 Accessing Local Management.....................................................5-7
5.4.1 Navigating Local Management Screens..........................5-9
5.4.2 Selecting Local Management Menu Screen Items........5-11
5.4.3 Exiting Local Management Screens..............................5-11
5.5 The Main Menu Screen..............................................................5-12
5.6 Chassis Menu Screen................................................................5-13
5.7 Chassis Configuration Screen ...................................................5-14
5.7.1 Setting the IP Address...................................................5-17
5.7.2 Setting the Subnet Mask...............................................5-18

Contents
DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide ix
5.7.3 Setting the Chassis Date ..............................................5-18
5.7.4 Setting the Chassis Time..............................................5-19
5.7.5 Entering a New Screen Refresh Time ..........................5-20
5.7.6 Setting the Screen Lockout Time..................................5-20
5.7.7 Setting the Operational Mode.......................................5-21
5.8 SNMP Community Names Screen............................................5-22
5.8.1 Establishing Community Names...................................5-24
5.9 SNMP Traps Screen..................................................................5-25
5.9.1 Configuring the Trap Table...........................................5-26
5.10 Chassis Environmental Screen .................................................5-26
5.11 Port Redirect Function Screen ..................................................5-28
5.11.1 Displaying the Source and Destination Entries.............5-30
5.11.2 Changing Source and Destination Ports.......................5-30
5.12 Module Selection Screen...........................................................5-31
5.12.1 Selecting a Module.......................................................5-33
5.13 Module Menu Screen ................................................................5-33
5.14 Module Configuration Menu Screen..........................................5-35
5.15 General Configuration Screen...................................................5-37
5.15.1 Setting the IP Address..................................................5-40
5.15.2 Setting the Subnet Mask...............................................5-42
5.15.3 Setting the Default Gateway.........................................5-42
5.15.4 Setting the TFTP Gateway IP Address.........................5-43
5.15.5 Setting the Module Date ...............................................5-43
5.15.6 Setting the Module Time...............................................5-44
5.15.7 Entering a New Screen Refresh Time ..........................5-45
5.15.8 Setting the Screen Lockout Time..................................5-45
5.15.9 Setting the Operational Mode.......................................5-46
5.15.10Setting the Management Mode.....................................5-46
5.15.11Configuring the COM Port.............................................5-47
5.15.12Changing the Com Port Application..............................5-49
5.15.13Clearing NVRAM...........................................................5-50
5.15.14Enabling/Disabling IP Fragmentation............................5-51
5.16 SNMP Community Names Screen............................................5-51
5.16.1 Establishing Community Names...................................5-53
5.17 SNMP Traps Screen..................................................................5-54
5.17.1 Configuring the Trap Table...........................................5-55
5.18 Switch Configuration Screen.....................................................5-55
5.18.1 Setting the STA.............................................................5-58
5.18.2 Setting the Age Time ....................................................5-59
5.18.3 Setting (Enabling or Disabling) the Port Status.............5-59
5.19 Ethernet Full Duplex Configuration Screen...............................5-60

Contents
x DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide
5.19.1 Setting the Operation Mode ..........................................5-62
5.20 SmartTrunk and the Configuration Screen.................................5-63
5.20.1 SmartTrunk Configuration Rules...................................5-63
5.20.2 SmartTrunk Configuration Screen.................................5-64
5.20.3 Enabling the Connection ...............................................5-66
5.20.4 Displaying the SmartTrunk Ports...................................5-67
5.21 Module Specific Configuration Menu Screen.............................5-67
5.22 System Resources Screen ........................................................5-70
5.22.1 Setting the Reset Peak Utilization.................................5-71
5.23 High Speed Interface Configuration Menu Screen (DLE2X-MA Only)
5-72
5.23.1 Configuring an DELFX-UI or DELF3-UI
in Port 25 or 265-75
5.23.2 Setting the DELFX-UI and DELF3-UI
Operational Mode5-75
5.23.3 Configuring an DELTX-UI in Port 25 or 26....................5-75
5.23.4 Setting the DELTX-UI Operational Mode......................5-75
5.23.5 Setting the DELTX-UI Advertised Ability.......................5-76
5.24 Flash Download Screen.............................................................5-77
5.24.1 Image File Download Using TFTP ................................5-80
5.24.2 Image File Download Using RUNTIME.........................5-81
5.24.3 Image File Download Using BootP................................5-82
5.25 Port Redirect Function Screen...................................................5-82
5.25.1 Displaying the Source and Destination Entries.............5-84
5.25.2 Changing Source and Destination Ports.......................5-84
5.26 Broadcast Suppression Screen .................................................5-86
5.26.1 Setting the Threshold....................................................5-87
5.26.2 Setting the Reset Peak Switch......................................5-88
5.27 Module Statistics Menu Screen .................................................5-88
5.28 Switch Statistics Screen.............................................................5-89
5.28.1 Using the Clear Counters Command ............................5-91
5.29 The Interface Statistics Screen..................................................5-91
5.29.1 Displaying Interface Statistics .......................................5-95
5.29.2 Using the Clear Counters Command ............................5-95
5.30 RMON Statistics Screen............................................................5-95
5.30.1 Displaying RMON Statistics ........................................5-100
5.30.2 Using the Clear Counters Command ..........................5-100
5.31 Network Tools..........................................................................5-101
5.31.1 Built-in Commands......................................................5-102
5.31.2 Special Commands.....................................................5-116

Contents
DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide xi
APPENDIX A SPECIFICATIONS
A.1 Device Specifications ..................................................................A-1
A.2 Physical Properties......................................................................A-1
A.3 Environmental Requirements ......................................................A-1
A.4 Input/Output Ports .......................................................................A-2
A.5 COM Port Pinout Assignments....................................................A-3
A.6 Regulatory Compliance ...............................................................A-3
APPENDIX B DELTX-UI, DELFX-UI AND DELF3-UI
SPECIFICATIONS
B.1 DELTX-UI....................................................................................B-1
B.2 DELFX-UI....................................................................................B-2
B.3 DELF3-UI.....................................................................................B-3
APPENDIX C MODE SWITCH BANK SETTINGS AND
OPTIONAL INSTALLATIONS
C.1 Required Tools............................................................................C-1
C.2 Setting the Mode Switch..............................................................C-1
C.3 Installing Optional Fast Ethernet Interface Modules....................C-4

DLE22-MA, DLE32-MA, DLE23-MA, and DLE33-MA User’s Guide xiii
PREFACE
Welcome to the DIGITAL MultiSwitch 700 DLE22-MA, DLE32-MA,
DLE23-MA, and DLE33-MA Interface Modules User’s Guide. This guide
provides information concerning network requirements, installation, and
the use of Local Management. It also provides problem solving,
connector and adapter, and pin assignment information.
USING THIS GUIDE
Read through this guide completely to understand the interface module
features, capabilities, and Local Management functions. A general
working knowledge of Ethernet and IEEE 802.3 type data
communications networks and their physical layer components is helpful
when using these devices.
INTENDED AUDIENCE
This manual is intended for use by personnel who will install and initially
set up the DIGITAL MultiSwitch 700 Interface Modules (DLE22-MA,
DLE32-MA, DLE23-MA and DLE33-MA).
STRUCTURE OF THIS GUIDE
This guide is organized as follows:
Chapter 1, Introduction, outlines the contents of this manual, describes
the features of the DLE2X-MA and DLE3X-MA, provides instructions on
obtaining additional help and concludes with a list of related manuals.
Chapter 2, Network Requirements, explains the network requirements
to consider before installing the DLE2X-MA and DLE3X-MA into the
DLM6C-AA DIGITAL MultiSwitch 700 chassis.
Chapter 3, Installation, provides instructions on how to install the
modules in the chassis and connect cables to the modules.
Unless noted differently, the information in this guide applies to
all four DIGITAL MultiSwitch 700 Interface Modules, which are
also referred to as the “DLE2X-MA and DLE3X-MA” or the
“module(s)”.

Preface
xiv DLE22-MA, DLE32-MA, DLE23-MA, and DLE33-MA User’s Guide
Chapter 4, Troubleshooting, details the DLE2X-MA and DLE3X-MA
LANVIEW LEDs that enable you to quickly diagnose
network/operational problems.
Chapter 5, Local Management, describes how to access Local
Management and use the Local Management screens to manage the
DLE2X-MA and DLE3X-MA interface modules and the DLM6C-AA
chassis.
Appendix A, Specifications, contains information on functionality and
operating specifications, connector pinouts, environmental requirements,
and physical properties.
Appendix B, DELTX-UI, DELFX-UI and DELF3-UI Specifications,
contains information about DELTX-UI pinouts and information
concerning cable types used with the DELFX-UI and DELF3-UI.
Appendix C, Mode Switch Bank Settings and Optional Installations,
describes how to install optional Fast Ethernet Interface Modules and how
to set the Mode Switches.
DOCUMENT CONVENTIONS
Throughout this guide, the following symbols are used to call attention to
important information.
Note symbol. Calls the reader’s attention to any item of
information that may be of special importance.
!Caution symbol. Contains information essential to avoid
damage to the equipment.
Electrical Hazard Warning symbol. Warns against an action
that could result in personal injury or death due to an electrical
hazard.

Related Documentation
DLE22-MA, DLE32-MA, DLE23-MA, and DLE33-MA User’s Guide xv
RELATED DOCUMENTATION
The following manuals may help the user to set up and manage the
DLE2X-MA and DLE3X-MA:
•DIGITAL MultiSwitch 700 Port Based VLAN User’s Guide
•DIGITAL ATM Modular Interface DELHA-UA User’s Guide
•DIGITAL FDDI Modular Media Interface DELHF-UA User’s Guide
•DIGITAL WAN Modular Interface DELHW-UA User’s Guide
•DIGITAL MultiSwitch 700 DLM6C-AA Overview and Setup Guide
•Ethernet Technology Guide
•Cabletron Cabling Guide
•DIGITAL OPEN DECconnect Structured Wiring System Application
Guide
•SmartTrunk User’s Guide
The manuals referenced above can be obtained on the World Wide Web
(see below) in Adobe Acrobat Portable Document Format (PDF).
CORRESPONDENCE
Documentation Comments
If you have comments or suggestions about this manual, send them to
DIGITAL Network Products:
World Wide Web
To locate product-specific information, refer to the DIGITAL Network
products Home Page on the World Wide Web at the following locations:
Attn.: Documentation Project Manager
E-MAIL: [e-mail]
North America: http://www.networks.digital.com
Europe: http://www.networks.europe.digital.com
Asia Pacific: http://www.networks.digital.com.au

Preface
xvi DLE22-MA, DLE32-MA, DLE23-MA, and DLE33-MA User’s Guide
GETTING HELP
Contact your DIGITAL representative for technical support. Before
calling, have the following information ready:
•A description of the failure
•A description of any action(s) already taken to resolve the problem
(e.g., changing mode switches, rebooting the unit, etc.)
•A description of your network environment (layout, cable type, etc.)
•Network load and frame size at the time of trouble (if known)
•The device history (i.e., have you returned the device before, is this a
recurring problem, etc.)

DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide xvii
SAFETY
OVERVIEW
Any warning or caution that appears in this manual is defined as follows:
WARNING Warns against an action that could result in
equipment damage, personal injury, or death.
VORSICHT Enthält Informationen, die beachtet werden
müssen um den Benutzer vor Schaden zu
bewahren.
DANGER Signale les informations destinées à prévenir
les accidents corporels.
AVISO Contiene información para evitar daños
personales.
CAUTION Contains information essential to avoid
damage to the equipment.
ACHTUNG Enthält Informationen, die beachtet werden
müssen um die Gerate vor Schaden zu
bewahren.
ATTENTION Signale les informations destinées à prévenir
la détérioration du matériel.
PRECAUCIÓN Contiene información para evitar daños al
equipo.
!
CAUTION

Safety
xviii DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide
SAFETY REQUIREMENTS
The warnings or cautions that must be observed for the hardware
described in this manual are listed below in English, German, French, and
Spanish.
WARNING Only qualified personnel should install this unit.
VORSICHT Diese Einheit darf nur von qualifizierten
Fachleuten installiert oder gewartet werden.
DANGER L'installation et la maintenance de cet appareil
sont réservées à un personnel qualifié.
AVISO Sólo elpersonal cualificado debe instalar o dar
mantenimiento a esta unidad.
WARNING The DELF3-UI uses Class 1 lasers. Do not use
optical instruments to view the laser output.
The use of optical instruments to view laser
output increases eye hazard. When viewing
the output optical port, power must be removed
from the network adapter.
VORSICHT Der DELF3-UI benutzt Laser der Klasse 1.
Zum Ansehen der Laserausgabe dürfen keine
optischen Geräte benutzt werden, da dadurch
das Risiko von Augenverletzungen erhöht
wird. Vor dem Ansehen des optischen
Ausgangsanschlusses muß der
Netzwerkadapter vomStromanschluß getrennt
werden.