Cabletron Systems 3E02-04, 3E05-04, 3E07-04, 3E08-04, 3E02-08-ATX User Manual

ETHERNET SWITCH MODULE

(3E02-04/3E05-04/3E07-04/3E08-04

AND 3E02-08-ATX)

USER GUIDE

OFFLINE

OFFLINE

QUAD IEEE 802.3 / ETHERNET 10BASET

SEGMENT 3SEGMENT 2 SEGMENT 1

LINK RX

COL TX

TX

LINK RX

COL TX

RX

TX

SEGMENT 4

LINK RX LINK RX PROC

COL TX

XXXX

QUAD IEEE 802.3 / ETHERNET 10BASE2

SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1

RX

TX

SEGMENT

OFFLINE

RX

TX

COL TX PWR

3X 4X 5X 6X 7X 8X2X1X

RX

RESET

PROCRX

PWR

OFFLINE

TX

LINK RX

COL TX

TXRX TXRX TXRX TXRX

OCTAL IEEE 802.3 / ETHERNET 10BASE-T

LINK
ACT
COL

12345678

TX

LINK RX

COL TX

PROC

PWR

SEGMENT 3SEGMENT 2 SEGMENT 1

QUAD IEEE 802.3 / ETHERNET AUI

SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1

RX

TX

QUAD IEEE 802.3 / ETHERNET 10BASE-FL

SEGMENT 4

LINK RX LINK RX

COL TX

RX

PROCRX

PWR

TX

PROC

COL TX

PWR

NOTICE

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 1996 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America

Order Number: 9031873-01 May 1996

SPECTRUM

All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.

and

LANView

are registered trademarks of Cabletron Systems

Ethernet Switch Module User Guide i

Printed on Recycled Paper

Notice

FCC NOTICE

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 received, including interference that may cause undesired operation.

NOTE:

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 uses, generates, and can radiate radio frequency energy and if not installed in
accordance with the operator’s manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause interference in which case the user
will be required to correct the interference at his own expense.

WARNING:

party responsible for compliance could void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital

Changes or modifications made to this device which are not expressly approved by the

DOC NOTICE

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

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference
by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial
and/or industrial areas.

Consequently , when used in a residential area or in an adjacent area thereto, radio interference may be
caused to radios and TV receivers, etc.

Read the instructions for correct handling.

ii Ethernet Switch Module User Guide

Notice

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT

IMPORTANT:

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.

Before utilizing this product, carefully read this License Agreement.

CABLETRON SOFTWARE PROGRAM LICENSE

1. LICENSE

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. APPLICABLE LA W. 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.

. You have the right to use only the one (1) copy of the Program provided in this

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY

1. EXCLUSION OF

writing, Cabletron makes no warranty, expressed or implied, 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 MA TERIALS, AND ANY ACCOMPANYING HARDW ARE.

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 CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR
ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.

WARRANTY. Except as may be specifically provided by Cabletron in

Ethernet Switch Module User Guide iii

Notice

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.

iv Ethernet Switch Module User Guide

CONTENTS

CHAPTER 1 INTRODUCTION

1.1 Document Conventions...............................................................1-2

1.2 Related Manuals..........................................................................1-3

1.3 Getting Help.................................................................................1-3

1.4 General Description.....................................................................1-4

1.5 3E02-04 Ethernet Switch Module................................................1-5

1.5.1 Connectors .....................................................................1-6

1.5.2 LEDs...............................................................................1-6

1.5.3 Offline Button..................................................................1-6

1.6 3E07-04 Ethernet Switch Module................................................1-6

1.6.1 Connectors .....................................................................1-7

1.6.2 LEDs...............................................................................1-7

1.6.3 Offline Button..................................................................1-7

1.7 3E08-04 Ethernet Switch Module................................................1-7

1.7.1 Connectors .....................................................................1-8

1.7.2 LEDs...............................................................................1-8

1.7.3 Offline Button..................................................................1-8

1.8 3E05-04 Ethernet Switch Module................................................1-8

1.8.1 Connectors .....................................................................1-8

1.8.2 LEDs...............................................................................1-9

1.8.3 Offline Button..................................................................1-9

1.9 3E02-08-ATX Ethernet Switch Module........................................1-9

1.9.1 Connectors .....................................................................1-9

1.9.2 LEDs.............................................................................1-10

1.9.3 Offline Button................................................................1-10

CHAPTER 2 CONNECTING TO THE NETWORK

2.1 Introduction..................................................................................2-1

2.2 Power-up LED Sequence............................................................2-1

2.3 Connecting to a Network.............................................................2-2

2.3.1 Connecting the 3E02-04 Ethernet Switch Module..........2-3

2.3.2 Connecting the 3E07-04 Ethernet Switch Module..........2-3

2.3.3 Connecting the 3E08-04 Ethernet Switch Module..........2-4

2.3.4 Connecting the 3E05-04 Ethernet Switch Module..........2-5

2.3.5 Connecting the 3E02-08-ATX Ethernet Switch Module.. 2-6

Ethernet Switch Module User Guide v

Contents

CHAPTER 3 CONFIGURING

3.1 Introduction ..................................................................................3-1

3.2 Connecting the Local Console Manager......................................3-2

3.3 LCM Commands..........................................................................3-2

CHAPTER 4 MONITORING

4.1 Displaying Port Status..................................................................4-1

4.1.1 Status Command.............................................................4-1

CHAPTER 5 DIAGNOSTICS AND TROUBLESHOOTING

5.1 Power-up Diagnostics..................................................................5-1

5.1.1 Power-up Tests...............................................................5-1

5.1.2 Power-Up Results ...........................................................5-1

5.2 Operational Diagnostics...............................................................5-3

5.2.1 Diagnostic Results...........................................................5-4

5.3 Troubleshooting ...........................................................................5-4

5.3.1 If The Module Fails To Power Up....................................5-4

5.3.2 Connectivity Problems.....................................................5-5

CHAPTER 6 ADDING/SWAPPING MODULES

6.1 Unpacking The Ethernet Switch Module......................................6-1

6.2 Adding An Ethernet Switch Module .............................................6-1

6.3 Swapping An Ethernet Switch Module.........................................6-2

APPENDIX A TECHNICAL SPECIFICATIONS

APPENDIX B CABLES

B.1 Types/Connectors....................................................................... B-1

B.2 Cable Specifications ...................................................................B-1

B.3 10BASE-T Pin Assignments....................................................... B-3

B.3.1 Crossover Wiring............................................................ B-4

B.3.2 Straight-Through Wiring.................................................. B-5

B.4 AUI Pin Assignments.................................................................. B-5

B.5 5 - 4 - 3 Rule ............................................................................... B-6

B.5.1 Definitions.......................................................................B-7

INDEX

vi Ethernet Switch Module User Guide

CHAPTER 1

INTRODUCTION

This manual is for system administrators responsible for configuring,
monitoring and maintaining the ATX. It should be used with the

Guide

are described below.

and the

ATX MIB Reference Guide

. The contents of each chapter

ATX User

• Chapter 1,
modules.

• Chapter 2,
attach a module to an Ethernet network.

• Chapter 3,
for the modules.

• Chapter 4,
statistics obtained via LCM.

• Chapter 5,
possible problems with the modules.

• Chapter 6,
and replacing an Ethernet module.

• Appendix A,
information about the modules.

Introduction

Connecting to the Network

Configuring

Monitoring

Diagnostics and Troubleshooting

Adding/Swapping Modules

Technical Specifications

, provides a general description of the

, discusses the software configuration options

, provides information on Ethernet port

, describes how to physically

, discusses identifying

, gives instructions for adding

, lists the pertinent technical

• Appendix B,
modules.

Ethernet Switch Module User Guide Page 1-1

Cables

, lists pertinent cabling information about the

Chapter 1:

Introduction

1.1 DOCUMENT CONVENTIONS

The following conventions are used in presenting information in this
manual:

Commands, prompts, and information displayed by the computer appear
in Courier typeface:

Current Number of Station Addresses: 5
Current Number of Learned Addresses: 133
Number of Defined Filters: 4

Information that you enter appears in Courier bold typeface:

ATX >

status

Information that you need to enter with a command is enclosed in angle
brackets <>. For example, you must enter a MAC address to execute the

address matrix

ATX >

address matrix 00:40:27:04:1a:0f

<MAC address> command:

Field value options appear in bold typeface. F or e xample, a filter type can
be either

NOTE

TIP

Entry

or

Exit

.

Note

symbol. Calls the reader’s attention to any item of

information that may be of special importance.

Tip

symbol. Conveys helpful hints concerning procedures or

actions.

!

CAUTION

Caution

damage to the equipment.

Warning

equipment damage, personal injury or death.

symbol. Contains information essential to avoid

symbol. Warns against an action that could result in

Page 1-2 Ethernet Switch Module User Guide

Related Manuals

1.2 RELATED MANUALS

You may need to refer to the following documentation when you are using
the Ethernet module:

•

ATX User Guide

for the ATX.

•

ATX MIB Reference Guide

enterprise MIB.

If you need internetworking reference material, you may find the
following books helpful:

•

Interconnections, Bridges and Routers,



Wesley

•

Internetworking with TCP/IP: Protocols, and Architecture

1992.

edition), Volumes I and II, Douglas Comer, Prentice Hall

– contains installation and configuration instructions

– describes the use of Cabletron’s

Radia Perlman, Addison

(2nd



1991.

•

The Simple Book, An Introduction to Management of TCP/IP-based
Internets,

Marshall T. Rose, Prentice Hall  1991.

1.3 GETTING HELP

If you need additional support related to this device, or if you have any
questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:

By phone [phone]

A.M

Monday – Friday; 8
By CompuServe GO CTRON from any ! prompt
By Internet mail [e-mail]
By FTP ctron.com (134.141.197.25)

Login
Password

anonymous

your email address

. – 8 P.M. Eastern T ime

Ethernet Switch Module User Guide Page 1-3

Chapter 1:

Introduction

1.4 GENERAL DESCRIPTION

Cabletron Systems Ethernet Switch Modules connect the ATX to a
maximum of four individual Ethernet IEEE 802.3 LANs. The Ethernet
Switch Module (3E02-08-ATX) connects to a maximum of eight Ethernet
IEEE 802.3 LANs.

Both module types enable connectivity to FDDI, Token Ring, and
Ethernet networks, and can be configured to support Transparent
Spanning Tree, Source Routing, or Source Routing Transparent Bridging
on each of the ports. The ATX can translate higher le vel protocols to allo w
communication between end-nodes on Ethernet as well as FDDI or Token
Ring. Protocols translated include TCP/IP, Novell NetWare, and
AppleTalk Phase II.

The four port Ethernet Switch Module is available in four versions to
support various cabling types:

• 3E02-04: provides four Unshielded Twisted Pair (UTP) connections

• 3E07-04: provides four thin coaxial cable connections

• 3E08-04: provides four multimode fiber optic connections

• 3E05-04: provides four Attachment Unit Interface (AUI) connections
The 3E02-08-ATX module provides eight UTP connections.
The Ethernet Switch Modules include processing circuitry for receiving

and forwarding data packets between the connected devices. Each module
contains an offline button and se veral LEDs that indicate the module’s and
individual ports’ operational status.

The four port modules may be installed in any of the five interface slots
and the ATX can simultaneously support up to five Ethernet Switch
Modules.

The 3E02-08-ATX module may be installed in any of the five interface
slots in a ATX, and the ATX can simultaneously support up to five eight
port modules. Each module provides connectivity to the multiple LANs.

Page 1-4 Ethernet Switch Module User Guide

3E02-04 Ethernet Switch Module

Each module provides connectivity to the multiple LANs. Since packets
are bridged/routed across Ethernet Switch Modules only when it is
necessary to reach the end device, each four port module can support four
distinct 10 Mbps LANs, while the eight port module supports eight
distinct 10 Mbps LANs.

RESET

TM

PACKET PROCESSING ENGINE

QUAD IEEE 802.3 / ETHERNET 10BASE2
SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1
PROCRX

RXTXRXTXRX

PWR

TX

TX

OFFLINE

FastNET ATX

SEGMENT

OFFLINE

OFFLINE

OFFLINE

TX RX

FDDI MIC A FDDI MIC BOPTICAL BYPASS

MULTI-MODE MULTI-MODE

OFFLINE

OFFLINE

POWER STATUS

ENGINE STATUS

NMS PORT

3X 4X 5X 6X 7X 8X2X1X

RING 1
RX ST

TX 16 TX 16 TX 16 TX 16 PWR

TX
RX
LK

TX

RING 2
RX ST

TX
RX
LK

TX RX TX RX TX RX

RX

TX

TURBO STATUS

POWER

OCTAL IEEE 802.3 / ETHERNET 10BASE-T

LINK

ACT
COL

12345678

QUAD IEEE 802.5 TOKEN RING (UTP)
RING 3
RX ST

QUAD FAST ETHERNET / 802.3 100BASE-FX

SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1
TX
RX
LK

QUAD IEEE 802.3 / ETHERNET 10BASE2

SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1

RX

TX

SUPPLY A

SUPPLY B

RX ST PROC

TX
RX
LK

INTELLIGENT FDDI

RING A
RING B

RX

TX

1.6 Gbps

PROC

PWR

RING 4

PROC

PWR

THRU

PROC

WRAP

RX

TX PWR

PROCRX

PWR

Figure 1-1 ATX Front Panel

1.5 3E02-04 ETHERNET SWITCH MODULE

The 3E02-04 (Figure 1-2) provides connection for four independent
10BASE-T LANs to the ATX backplane and packet processing module. It
includes processing circuitry for receiving and forwarding packets
between the connected 10BASE-T LANs. The module provides several
LEDs to indicate the module’s operational status.

The module supports twisted pair Ethernet and the IEEE 802.3
10BASE-T specification.

Ethernet Switch Module User Guide Page 1-5

Chapter 1:

Introduction

1.5.1 Connectors

The 3E02-04 includes eight 8-pin RJ45 ports for attachment directly to
the network through UTP cabling. The ATX power supply provides the
power for the module.

An internal receive/transmit pair crossover is provided in the

NOTE

second connector (far right, marked with an X) on each port.
This means that when either a station or server is directly
attached to a 3E02-04 port, you can choose to use either
straight-through or crossover cabling. For more cabling and
crossover information, see Appendix B.

1.5.2 LEDs

The 3E02-04 provides a total of 18 green LEDs labeled LNK, COL, RX
and TX for each segment, plus PROC and PWR for the module. The
LEDs are described in Chapter 5,
this manual.

Diagnostics and Troubleshooting

, of

1.5.3 Offline Button

Use the offline button before swapping the module, to take it offline until
the replacement is installed.

QUAD IEEE 802.3 / ETHERNET 10BASET

LINK RX LINK RX PROC

COL TX

SEGMENT 4

COL TX PWR

XXXX

OFFLINE

LINK RX

COL TX

LINK RX

COL TX

SEGMENT 3SEGMENT 2 SEGMENT 1

Figure 1-2 3E02-04 Module Front Panel

1.6 3E07-04 ETHERNET SWITCH MODULE

The 3E07-04 (Figure 1-3) provides connection for four independent
10BASE2 LANs to the ATX backplane and packet processing module. It
includes processing circuitry for receiving and forwarding packets
between the connected 10BASE2 LANs. The 3E07-04 contains several
LEDs to indicate the module’s operational status.

The 3E07-04 supports thin coaxial cable Ethernet and the IEEE 802.3
10BASE2 specification.

Page 1-6 Ethernet Switch Module User Guide

3E08-04 Ethernet Switch Module

1.6.1 Connectors

The 3E07-04 includes four pairs of BNC barrel connectors for thin
coaxial cabling. Each of the four segments provides an internal BNC
T-connector, therefore an external T-connector is not required. The ATX
power supply provides the power for the module.

1.6.2 LEDs

The 3E07-04 contains a total of 10 green LEDs labeled RX and TX for
each segment, plus PROC and PWR for the module. The LEDs are
described in Chapter 5 of this manual.

1.6.3 Offline Button

Use the offline button before swapping the module, to take it offline until
the replacement is installed.

QUAD IEEE 802.3 / ETHERNET 10BASE2

SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1

RX

PROCRX

PWR

TX

OFFLINE

RX

TX

TX

RX

TX

Figure 1-3 3E07-04 Front Panel

1.7 3E08-04 ETHERNET SWITCH MODULE

The 3E08-04 (Figure 1-4) provides connection for four independent
multimode 10BASE-FL LANs to the ATX backplane and packet
processing module. It includes processing circuitry for receiving and
forwarding packets between the connected 10BASE-FL LANs. The
3E08-04 contains several LEDs to indicate the module’s operational
status.

The 3E08-04 supports Ethernet and the IEEE 802.3 10BASE-FL
specification.

Ethernet Switch Module User Guide Page 1-7

Chapter 1:

Introduction

1.7.1 Connectors

The 3E08-04 includes four pairs of fiber optic ST connectors for fiber
optic cabling. Receive (RX) and transmit (TX) connectors are clearly
marked on the front panel of the module. The ATX power supply provides
the power for the module.

1.7.2 LEDs

The 3E08-04 contains a total of 18 green LEDs labeled LNK, COL, RX
and TX for each segment, plus PROC and PWR for the module. The
LEDs are described in Chapter 5 of this manual.

1.7.3 Offline Button

Use the offline button before swapping the module, to take it offline until
the replacement is installed.

QUAD IEEE 802.3 / ETHERNET 10BASE-FL

LINK RX LINK RX

COL TX

SEGMENT 4

COL TX

PROC

PWR

OFFLINE

LINK RX

COL TX

TXRX TXRX TXRX TXRX

LINK RX

COL TX

SEGMENT 3SEGMENT 2 SEGMENT 1

Figure 1-4 3E08-04 Front Panel

1.8 3E05-04 ETHERNET SWITCH MODULE

The 3E05-04 (Figure 1-5) provides connection for four independent
Ethernet IEEE 802.3 LANs to the ATX backplane and packet processing
module. It includes processing circuitry for receiving and forwarding
packets between the connected LANs. The 3E05-04 contains several
LEDs to indicate the module’s operational status.

The 3E05-04 supports Ethernet version 2 and the IEEE 802.3
specification.

1.8.1 Connectors

The 3E05-04 includes four DB15 AUI connectors which you can connect
to an AUI drop cable or to a transceiver attached to a LAN.

Page 1-8 Ethernet Switch Module User Guide

3E02-08-ATX Ethernet Switch Module

1.8.2 LEDs

The 3E05-04 contains a total of 10 green LEDs labeled RX and TX for
each segment, plus PROC and PWR for the module. The LEDs are
described in Chapter 5 of this manual.

1.8.3 Offline Button

Use the offline button before swapping the module, to take it offline until
the replacement is installed.

QUAD IEEE 802.3 / ETHERNET AUI

SEGMENT 4SEGMENT 3SEGMENT 2 SEGMENT 1

RX

PROCRX

PWR

TX

RESET

RX

TX

TX

RX

TX

Figure 1-5 3E05-04 Front Panel

1.9 3E02-08-ATX ETHERNET SWITCH MODULE

The 3E02-08-ATX (Figure 1-6) provides connection for eight
independent 10BASE-T LANs to the ATX. It includes processing
circuitry for receiving and forwarding packets between the connected
10BASE-T LANs. The 3E02-08-ATX contains several LEDs to indicate
the module’s operational status.

The 3E02-08-ATX supports UTP cabling and the IEEE 802.3 10BASE-T
specification.

1.9.1 Connectors

The 3E02-08-ATX includes eight 8-pin RJ45 receptacle connectors with
built-in crossover that you can attach directly to the network using
unshielded twisted pair (UTP) cabling. The ATX power supply provides
the power for the module.

An internal receive/transmit pair crossover is provided within

NOTE

each port. This means that depending on whether crossover is
provided on the device y ou’re connecting to, you can use either
crossover or straight-through UTP cable to connect a device to
a port. For more cabling and crossover information, see
Appendix B.

Ethernet Switch Module User Guide Page 1-9