- •Notice
- •Contents
- •Introduction
- •1.1 Using This manual
- •1.2 Overview
- •1.3 3H02-04 FE Switch Module
- •1.3.1 Connectors
- •1.3.2 LEDs
- •1.3.3 Offline Button
- •1.4 3H08-04 FE Switch Module
- •1.4.1 Connectors
- •1.4.2 LEDs
- •1.4.3 Offline Button
- •1.5 Document Conventions
- •1.6 Related Manuals
- •1.7 Getting Help
- •Connecting to the Network
- •2.1 Power-Up LED Sequence
- •2.2 Connecting to a Network
- •2.2.1 Connecting the 3H02-04 FE Switch Module
- •2.2.2 Connecting the 3H08-04 FE Switch Module
- •Configuring
- •3.1 Connecting the Local Console Manager
- •3.2 Local Console Manager commands
- •Monitoring
- •4.1 Displaying Switch Module Port Status
- •Diagnostics and Troubleshooting
- •5.1 Power-Up Tests
- •5.2 Power-Up Results
- •5.3 Operational Diagnostics
- •5.4 Diagnostic results
- •5.5 Troubleshooting
- •5.5.1 If the Module Fails to Power Up
- •5.5.2 Connectivity Problems
- •Adding/Swapping Modules
- •6.1 Unpacking the Switch Module
- •6.2 Adding a Switch Module
- •6.3 Swapping a Switch Module
- •Technical Specifications
- •Cables
- •B.1 Types/Connectors
- •B.2 Cable Specifications
- •B.3 Fast Ethernet Pin Assignments
- •B.3.1 About RJ45 Connectors
- •B.3.2 Crossover Wiring for the 3H02-04
- •B.3.3 Straight-Through Wiring for the 3H02-04
- •B.3.4 Limitations & Restrictions
- •Index

FAST ETHERNET SWITCH MODULE
USER GUIDE
| SEGMENT 1 |
| QUAD FAST ETHERNET / 802.3 | ||
| SEGMENT 2 | SEGMENT 3 | SEGMENT 4 |
| |
| TX | TX | TX | TX | PROC |
| RX | RX | RX | RX |
|
| LK | LK | LK | LK |
|
OFFLINE | X | X | X | X | PWR |
|
|
|
|
|
|
| QUAD FAST ETHERNET / 802.3 | ||
| SEGMENT 1 | SEGMENT 2 | SEGMENT 3 | SEGMENT 4 |
| ||||
|
| TX |
| TX |
| TX |
| TX | PROC |
|
| RX |
| RX |
| RX |
| RX |
|
|
| LK |
| LK |
| LK |
| LK |
|
OFFLINE | TX | RX | TX | RX | TX | RX | TX | RX | 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
Printed in the United States of America
Order Number:
All product names mentioned in this manual may be trademarks or registered trademarks of their respective companies.
Printed on | Recycled Paper |
FE Switch Module User Guide | i |

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: 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 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: 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
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 | FE Switch Module User Guide |

Notice
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.APPLICABLE LAW. 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, 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 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 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.
FE 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
For Department of Defense units, the product is licensed with “Restricted Rights” as defined in the DoD Supplement to the Federal Acquisition Regulations, Section
iv | FE Switch Module User Guide |