Cabletron Systems SEH100TX-22 User Manual
SEH100TX-22
100BASE-T STACKABLE HUB
USER’S GUIDE
®
Only qualified personnel should perform installation
procedures.
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: 9031510-02 December 1996
SPECTRUM, LANVIEW
EPIM-100FX, EPIM-100TX, EPIM-100FMB, HubSTACK, MicroMMAC, SEH
trademarks of Cabletron Systems, Inc.
All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.
and
BRIM
are registered trademarks and
Element Manager, EPIM
, and
SEHI
,
are
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:
party responsible for compliance could void the user’s authority to operate the equipment.
Changes or modifications made to this device which are not e xpressly appro v ed by the
Printed on Recycled Paper
SEH100TX User’s Guide i
Notice
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 T echnology 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.
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 , PR OMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.
Before utilizing this product, carefully read this License Agreement.
ii SEH100TX User’s Guide
Notice
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
ACCOMP ANYING WRITTEN MA TERIALS, AND ANY A CCOMP ANYING 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.
WARRANTY. Except as may be specifically provided by Cabletron in
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.
SEH100TX User’s Guide iii
Notice
DECLARATION OF CONFORMITY
Application of Council Directive(s):
Manufacturer’s Name:
Manufacturer’s Address:
European Representative Name:
European Representative Address:
Conformance to Directive(s)/Product Standards:
Equipment T ype/Environment:
W e 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
89/336/EEC
73/23/EEC
Cabletron Systems, Inc.
35 Industrial Way
PO Box 5005
Rochester, NH 03867
Mr. J. Solari
Cabletron Systems Limited
Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Networking Equipment, for use in a
Commercial or Light
Environment.
Industrial
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
iv SEH100TX User’s Guide
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 Using This Manual.......................................................................1-1
1.2 Document Conventions...............................................................1-2
1.3 Getting Help.................................................................................1-3
1.4 Related Manuals..........................................................................1-4
CHAPTER 2 SEH FEATURES AND OPTIONS
2.1 SEH Overview.............................................................................2-2
2.2 SEH Features.............................................................................. 2-2
2.3 Stackable Capabilities.................................................................2-3
2.4 Rack Mounting Capabilities......................................................... 2-3
2.5 Optional EPIMs............................................................................2-4
CHAPTER 3 INSTALLATION REQUIREMENTS
AND SPECIFICATIONS
3.1 Cable Specifications.................................................................... 3-1
3.1.1 HubSTACK Interconnect Cable Requirements............... 3-1
3.1.2 UTP Cable Specifications...............................................3-2
3.1.3 Multimode Fiber Optic Cable Specifications...................3-3
3.2 Network Cable Lengths...............................................................3-4
3.3 Network Port Specifications.........................................................3-5
3.4 Operating Specifications..............................................................3-6
3.4.1 Power Supply Requirements .......................................... 3-6
3.4.2 Environmental Requirements .........................................3-6
3.5 Agency Approvals........................................................................3-6
3.5.1 Safety.............................................................................. 3-6
3.5.2 Emission ......................................................................... 3-6
3.5.3 Immunity ......................................................................... 3-7
3.6 Physical Specifications................................................................ 3-7
SEH100TX User’s Guide v
Contents
CHAPTER 4 INSTALLATION
4.1 Unpacking the SEH......................................................................4-1
4.2 Tabletop or Shelf Installation .......................................................4-2
4.3 Rackmount Installation.................................................................4-3
4.4 Powering Up and Stacking the SEH............................................4-5
4.4.1 Stacking SEH Hubs with an SEHI...................................4-6
4.4.2 Stacking Unmanaged SEH Hubs Together.....................4-8
4.5 Installing an EPIM........................................................................4-8
CHAPTER 5 CONNECTING TO THE NETWORK
5.1 Connecting the SEH100TX-22 to the Network ............................5-1
5.1.1 Connecting to Network Ports...........................................5-1
5.1.2 Connecting to an EPIM-100TX........................................5-2
5.1.3 nnecting an EPIM-100FX or EPIM-100FMB ...................5-4
5.2 Testing the Installation.................................................................5-5
CHAPTER 6 TROUBLESHOOTING
6.1 Installation Test............................................................................6-1
6.2 Using LANVIEW...........................................................................6-2
APPENDIX A EPIM INFORMATION
A.1 EPIM Specifications....................................................................A-1
A.1.1 EPIM-100TX................................................................... A-1
A.1.2 EPIM-100FX................................................................... A-2
A.1.3 EPIM-100FMB................................................................ A-3
INDEX
vi SEH100TX User’s Guide
CHAPTER 1
INTRODUCTION
Welcome to the Cabletron Systems
Stackable Hub User’s Guide
SEH100TX-22 100BASE-T
. This manual provides installation
instructions, troubleshooting and reference information for the
SEH100TX-22.
NOTE
The terms SEH (Stackable Ethernet Hub) and SEHI (Stackable
Ethernet Hub with Intelligence) are used throughout this
manual when referring to the SEH100TX-22 and the
SEHI100TX-22, respectively.
1.1 USING THIS MANUAL
Read through this manual to gain an understanding of the features and
capabilities of the SEH. A general knowledge of Ethernet and IEEE
802.3u type data communications networks and their physical layer
components is helpful when installing the SEH.
Chapter 1,
Introduction
objectives and conventions of this manual. This chapter also provides
information about how to get help and concludes with a list of related
manuals.
Chapter 2,
SEH Features and Options
and provides information about available options.
, outlines the contents and describes the
, briefly describes SEH features
Chapter 3,
Installation Requirements and Specifications
, provides
installation requirements, network guidelines, and SEH specifications.
Chapter 4,
Installation
, contains instructions for installing the SEH as a
stackable or standalone hub.
Chapter 5,
Connecting to the Network
, explains how to connect the SEH
to the network using the various media types.
Chapter 6,
Troubleshooting
, describes how to use the LANVIEW LEDs
to troubleshoot network problems.
Appendix A,
EPIM Information,
provides specifications, cabling
information, and switch settings for the Ethernet Port Interface Modules.
SEH100TX User’s Guide 1-1
Chapter 1:
Introduction
1.2 DOCUMENT CONVENTIONS
The following conventions are used throughout this document:
Note
NOTE
TIP
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.
Electrical Hazard Warning
that could result in personal injury or death due to an electrical
hazard.
symbol. Contains information essential to avoid
symbol. Warns against an action
1-2 SEH100TX User’s Guide
Getting Help
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:
Phone (603) 332-9400
Monday – Friday; 8 A.M. – 8 P.M. Eastern Time
CompuServe GO CTRON from any ! prompt
Internet mail support@ctron.com
FTP ctron.com (134.141.197.25)
Login
Password
BBS (603) 335-3358
Modem setting 8N1: 8 data bits, 1 stop bit, No parity
For additional information about Cabletron Systems products, visit our
W orld W ide Web site: http://www .cabletron.com/
Before calling Cabletron Systems Technical Support, have the following
information ready:
anonymous
your email address
• 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 serial and revision numbers of all Cabletron Systems products in
the network
• The device history (i.e., have you returned the device before, is this a
recurring problem, etc.)
• Any previous Return Material Authorization (RMA) numbers
SEH100TX User’s Guide 1-3
Chapter 1:
Introduction
1.4 RELATED MANUALS
Use the Cabletron Systems
Stackable Hub User’s Guide
technical data provided in this manual. The procedures contained in the
SEHI100TX-22 100BASE-T Intelligent Stackable Hub User’s Guide are
referenced where appropriate, but not repeated in this manual.
SEHI100TX-22 100BASE-T Intelligent
to supplement the procedures and other
1-4 SEH100TX User’s Guide
CHAPTER 2
SEH FEATURES AND OPTIONS
This chapter provides an overview of the SEH (Figure 2-1) and contains
sections detailing the features and available options.
NOTE
(Stackable Ethernet Hub with Intelligence) are used throughout
this manual when referring to the SEH100TX-22 and the
SEHI100TX-22, respectively.
HubSTACK 100BASE-TX HUB WITH LANVIEW®
SEH100TX-22
PWR
MGMT
CLN
SEH100TX-22 100BASE-T HUB WITH LANVIEW®
SN
Power Supply
Figure 2-1 Front and Rear Views of the SEH100TX-22
The abbreviations SEH (Stackable Ethernet Hub) and SEHI
RCV
LNK
22 21 20 19 18 17 16 15 14 13 12
RCV
LNK
11 10 9 8 7 6 5 4 3 2 1
Port Status LEDs
System LEDs
REAR VIEW
E
2
22X 21X 20X 19X 18X 17X
E
1
11X 10X 9X 8X 7X 6X
Interconnect Bus "OUT" Port
Interconnect Bus "IN" Port
16X 15X 14X 13X 12X
5X 4X 3X 2X 1X
Network Ports 1-22
EPIM Slots
EPIM 2
EPIM 1
OUT
SEH100TX INTERCONNECT
IN
1510_01
SEH100TX User’s Guide 2-1
Chapter 2:
SEH Features and Options
2.1 SEH OVERVIEW
The SEH100TX-22 is a repeating hub providing 22 RJ45 ports and two
Ethernet Port Interface Module (EPIM) ports on the front panel for
network connections. The SEH has two rear panel Interconnect Bus ports
for stackable connections. The front panel EPIM ports support the
EPIM-100TX, EPIM-100FX, and the EPIM-100FMB. The
SEH100TX-22 is designed to be managed by the Cabletron Systems
intelligent stackable hub, the SEHI100TX-22.
The SEH100TX-22 operates in a 100BASE-T Ethernet
network. This product will NOT operate in a 10BASE-T
!
CAUTION
environment. Connect the SEH100TX-22 only to similar
100BASE-T products such as the SEHI100TX-22.
The SEH100TX-22 supports the EPIM-100TX, EPIM-100FX,
and the EPIM-100FMB. No other Cabletron Systems EPIMs
operate in this device.
2.2 SEH FEATURES
Repeater Functionality
The SEH fully conforms to the IEEE 802.3u Repeater specifications. The
SEH transmits retimed data packets, regenerates the preamble, extends
fragments, and arbitrates collisions.
The SEH100TX-22 meets IEEE 802.3u Repeater Class I standards.
Class I standards allow one repeater between any two Data Terminal
Equipment (DTE) devices within a single collision domain (network).
The SEH automatically partitions problem segments, and reconnects
repaired segments to the network. This feature minimizes the impact on
network operation resulting from a problem on one segment by isolating
the problem segment. Only devices on the problem segment are affected.
When the problem is solved, the SEH automatically reconnects the
isolated segment to the network.
Polarity Detection and Correction
Each twisted pair port on the SEH incorporates a Polarity Detection and
Correction feature which allows the SEH to pass data regardless of the
polarity of the receive link on the twisted pair segment.
2-2 SEH100TX User’s Guide
Stackable Capabilities
LANVIEW LEDs
Cabletron Systems LANVIEW status monitoring and diagnostics system
is a troubleshooting tool that helps in diagnosing power failures,
collisions, cable faults, and link problems. The LANVIEW LEDs are
conveniently located on the SEH front panel.
2.3 STACKABLE CAPABILITIES
The SEH100TX-22 is a non-intelligent hub designed to be managed by
the Cabletron Systems SEHI100TX-22 intelligent hub. The design of the
SEH allows the stacking of five SEH hubs in an unmanaged configuration
or up to four Cabletron Systems SEH non-intelligent hubs with one SEHI.
The SEHI is placed at the bottom of the stack. It manages all SEH hubs in
the stack and provides full packet and error statistics for the entire stack,
individual devices, or individual ports.
SEH non-intelligent hubs may be stacked together or with one SEHI
using Cabletron Systems HubSTACK Interconnect cables provided with
the SEH. Stackable configurations make it possible to maintain only one
IEEE repeater hop while providing up to 120 ports. The design allows
hubs to be added or removed from a stack without having to power down
the entire stack.
2.4 RACK MOUNTING CAPABILITIES
The SEH can be installed in a 19-inch rack. Cabletron Systems provides
the necessary brackets and mounting screws for the SEH. Refer to
Chapter 4,
SEH100TX User’s Guide 2-3
Installation
, for complete rack mounting instructions.
Chapter 2:
SEH Features and Options
2.5 OPTIONAL EPIMs
EPIMs are not included with the SEH, but they can be purchased
separately from Cabletron Systems.
EPIMs enable the expansion of a network through different types of
media. Cabletron Systems offers three optional EPIMs for the
SEH100TX-22 and SEHI100TX-22 as shown in Table 2-1
Table 2-1 100BASE-TX/FX/FMB EPIMs
EPIM Media Type Connector
EPIM-100TX
EPIM-100FX Multimode Fiber Optic Cable SC
EPIM-100FMB for
buffered uplinks
Category 5 Unshielded Twisted
Pair Cable
Multimode Fiber Optic Cable SC
For more details about the EPIMs, refer to Appendix A.
RJ45
2-4 SEH100TX User’s Guide
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