Cabletron Systems SEHI100TX-22 Guida Utente

SEHI100TX-22 100BASE-TINTELLIGENT STACKABLE HUBUSER’S GUIDE ®

Contentsviii SEHI100TX User’s Guide

SEHI100TX User’s Guide 1-1 CHAPTER 1INTRODUCTION Welcome to the Cabletron Systems SEHI100TX-22 100BASE-T Intelligent Stackable Hub User’s Guide . Th

Chapter 1: Introduction 1-2 SEHI100TX User’s Guide Chapter 7, Local Management , describes how to use SEHI Local Management screens and the availab

Getting HelpSEHI100TX User’s Guide 1-3 1.3 GETTING HELP If you need additional support related to this device, or if you have any questions, comments

Chapter 1: Introduction 1-4 SEHI100TX User’s Guide 1.4 RELATED MANUALS Use the Cabletron Systems SEH100TX-22 100BASE-T User’s Guide to supplement

SEHI100TX User’s Guide 2-1 CHAPTER 2SEHI FEATURES AND OPTIONS This chapter provides an overview of the SEHI and contains sections detailing features

Chapter 2: SEHI Features and Options 2-2 SEHI100TX User’s Guide 2.2 SEHI FEATURES The SEHI operating features are as follows: Repeater Functionality

Stackable CapabilitiesSEHI100TX User’s Guide 2-3 LANVIEW LEDs Cabletron Systems LANVIEW status monitoring and diagnostics system is a troubleshootin

Chapter 2: SEHI Features and Options 2-4 SEHI100TX User’s Guide 2.4 RACK MOUNTING CAPABILITIES The SEHI can be installed in a 19-inch rack. Cabletro

SEHI100TX User’s Guide 3-1CHAPTER 3INSTALLATION REQUIREMENTSAND SPECIFICATIONSThis chapter describes cabling requirements, network guidelines, and ope

Chapter 3: Installation Requirements and Specifications3-2 SEHI100TX User’s Guide3.1.2 UTP Cable Specifications The device at the other end of the twist

Cable SpecificationsSEHI100TX User’s Guide 3-3Propagation DelayPropagation delay is the amount of time it takes data to travel from the sending device

Chapter 3: Installation Requirements and Specifications3-4 SEHI100TX User’s GuidePropagation delay (collision delay) is the amount of time it takes dat

Network Cable LengthsSEHI100TX User’s Guide 3-5Figure 3-1 Class I NetworkTable 3-1 summarizes the maximum link lengths for each type and combination o

Chapter 3: Installation Requirements and Specifications3-6 SEHI100TX User’s Guide3.3 NETWORK PORT SPECIFICATIONSThe SEHI network ports use shielded RJ4

Operating SpecificationsSEHI100TX User’s Guide 3-73.5 OPERATING SPECIFICATIONSThe operating specifications for the SEHI100TX-22 are described in this se

Chapter 3: Installation Requirements and Specifications3-8 SEHI100TX User’s GuideImmunityThis unit meets the immunity requirements of EN 50082-1 includ

SEHI100TX User’s Guide 4-1CHAPTER 4INSTALLATIONThis chapter outlines the procedure for attaching the SEHI to the network as a stackable or standalone

Chapter 4: Installation4-2 SEHI100TX User’s Guide4.2 PRE-INSTALLATION CHECKOUTThe SEHI is equipped with an NVRAM reset switch (Figure 4-1) located beh

Tabletop or Shelf InstallationSEHI100TX User’s Guide 4-34.3 TABLETOP OR SHELF INSTALLATIONThis section provides guidelines for installation on a table

SEHI100TX User’s Guide i NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this documen

Chapter 4: Installation4-4 SEHI100TX User’s GuideRack mounting the SEHI involves the following:• Attaching the strain-relief bracket • Rack mounting t

Rackmount InstallationSEHI100TX User’s Guide 4-5Rack Mounting the SEHIRefer to Figure 4-4 and proceed as follows to install the SEHI into a19-inch rac

Chapter 4: Installation4-6 SEHI100TX User’s Guide3. Ensure that the rack used will support the unit, and that the rack will remain stable with the uni

Powering Up and Stacking the SEHISEHI100TX User’s Guide 4-74.5 POWERING UP AND STACKING THE SEHIThe following section details the procedures that must

Chapter 4: Installation4-8 SEHI100TX User’s Guide3. Power up the SEH above the SEHI in the stack by plugging the power cord into the back panel of the

Installing an EPIMSEHI100TX User’s Guide 4-94.6 INSTALLING AN EPIMThis section contains procedures on how to install the EPIM-100TX, EPIM-100FX, or th

Chapter 4: Installation4-10 SEHI100TX User’s Guide

SEHI100TX User’s Guide 5-1CHAPTER 5CONNECTING TO THE NETWORKThis chapter outlines the procedure for connecting the SEHI to a network. Ensure that the

Chapter 5: Connecting to the Network5-2 SEHI100TX User’s GuideFigure 5-1 SEHI Network Ports3. Check that the applicable LNK LED for the port is on. If

Connecting the SEHI to the NetworkSEHI100TX User’s Guide 5-3Figure 5-2 EPIM-100TX Crossover SwitchConnect an EPIM-100TX to a twisted pair segment as f

Noticeii SEHI100TX User’s Guide DOC NOTICE This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus

Chapter 5: Connecting to the Network5-4 SEHI100TX User’s Guide5.1.3 Connecting to an EPIM-100FX or EPIM-100FMBThe EPIM-100FX and EPIM-100FMB have an S

Testing the InstallationSEHI100TX User’s Guide 5-53. At the other end of the fiber optic cable, attach the SC connector to the other device.4. Check t

Chapter 5: Connecting to the Network5-6 SEHI100TX User’s Guide

SEHI100TX User’s Guide 6-1CHAPTER 6TROUBLESHOOTINGThis chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network pro

Chapter 6: Troubleshooting6-2 SEHI100TX User’s Guide2. If the remote station is ready and the LNK LED is on, but no data passes through the port, one

Using LANVIEWSEHI100TX User’s Guide 6-3Figure 6-1 LANVIEW LEDsPWR When this green LED is on, it indicates that the SEHI is receiving power. If this LE

Chapter 6: Troubleshooting6-4 SEHI100TX User’s GuideCPUThis LED alternates from red to green to during power up. After the boot is complete, the LED b

Setting the NVRAM SwitchSEHI100TX User’s Guide 6-56.4 SETTING THE NVRAM SWITCHThe SEHI uses NVRAM to store user-entered parameters such as IP address

Chapter 6: Troubleshooting6-6 SEHI100TX User’s Guide

SEHI100TX User’s Guide 7-1CHAPTER 7LOCAL MANAGEMENTThis chapter explains how to set up a management terminal to access the SEHI Local Management. It a

NoticeSEHI100TX User’s Guide iii CABLETRON SOFTWARE PROGRAM LICENSE 1. LICENSE. You have the right to use only the one (1) copy of the Program provid

Chapter 7: Local Management7-2 SEHI100TX User’s Guide7.1 KEYBOARD CONVENTIONSAll key names appear in this manual as capital letters. For example, the

Management Terminal SetupSEHI100TX User’s Guide 7-37.2 MANAGEMENT TERMINAL SETUPUse one of the following systems to access Local Management:• A Digita

Chapter 7: Local Management7-4 SEHI100TX User’s GuideConsole Cable ConfigurationUse the RJ45 Cable Kit provided with the SEHI to attach the management

Management Terminal SetupSEHI100TX User’s Guide 7-5Management Terminal Setup ParametersTable 7-2 lists the setup parameters for the local management t

Chapter 7: Local Management7-6 SEHI100TX User’s Guide7.3 ACCESSING LOCAL MANAGEMENTAfter configuring the local management terminal and properly attachi

Accessing Local ManagementSEHI100TX User’s Guide 7-73. Press ENTER.• If the password entry is invalid, the cursor returns to the beginning of the pass

Chapter 7: Local Management7-8 SEHI100TX User’s Guide7.4 THE FEATURE SELECTION SCREENThe Feature Selection screen is the main menu screen for SEHI Loc

The Community Name Table ScreenSEHI100TX User’s Guide 7-97.5 THE COMMUNITY NAME TABLE SCREENTo access the Community Name Table screen from the Feature

Chapter 7: Local Management7-10 SEHI100TX User’s GuideThe following sections explain each field on the Community Name Table screen and provides instruc

The Community Name Table ScreenSEHI100TX User’s Guide 7-117.5.1 Editing the Community Name FieldThe password used to access Local Management at the Pa

Noticeiv SEHI100TX User’s Guide DECLARATION OF CONFORMITY Application of Council Directive(s): 89/336/EEC73/23/EEC Manufacturer’s Name: Cabletron Sys

Chapter 7: Local Management7-12 SEHI100TX User’s Guide7.6 THE CONFIGURATION SCREENTo access the Configuration screen from the Feature Selection screen,

The Configuration ScreenSEHI100TX User’s Guide 7-13IP AddressDisplays the IP address of the SEHI.SubNET MaskDisplays the subnet mask for the SEHI. A su

Chapter 7: Local Management7-14 SEHI100TX User’s Guide4. Use the arrow keys to highlight the SAVE option, then press ENTER or F6. The “SAVED OK” messa

The Configuration ScreenSEHI100TX User’s Guide 7-157.6.3 Setting the Default GatewayThe Default Gateway field allows the user to describe the router thr

Chapter 7: Local Management7-16 SEHI100TX User’s Guide1. Press the appropriate Function key. To return to the Feature Selection screen, use the arrow

The Trap Table ScreenSEHI100TX User’s Guide 7-17SNMP Community NameDisplays the community name included in the trap message sent to the Network Manage

Chapter 7: Local Management7-18 SEHI100TX User’s Guide7.7.2 Exiting the Trap Table ScreenUse the following steps to exit the Trap Table screen and ret

The SNMP Tools ScreenSEHI100TX User’s Guide 7-19Figure 7-7 SNMP Tools ScreenThe following sections describe SNMP Tools screen fields.SNMP COMMUNITY NAM

Chapter 7: Local Management7-20 SEHI100TX User’s GuideGETNEXTDisplays the OID following the current OID. WALKAllows the user to scroll through a secti

The SNMP Tools ScreenSEHI100TX User’s Guide 7-21• Enter an “=” and the OID suffix (e.g., if =4.1.3 is entered, then the OID=4.1.3). This allows the use

SEHI100TX User’s Guide v CONTENTS CHAPTER 1 INTRODUCTION 1.1 Using This Manual...

Chapter 7: Local Management7-22 SEHI100TX User’s Guide3. Press ENTER. If there is no instance of that OID, the return code will specify “MIB_NO_INSTAN

The SNMP Tools ScreenSEHI100TX User’s Guide 7-237.8.6 Stepping Through OIDsUse the following steps to STEP through OIDs (the user can step through onl

Chapter 7: Local Management7-24 SEHI100TX User’s Guide7.9 THE DEVICE STATISTICS SCREENThis section describes the features of the Device Statistics scr

The Device Statistics ScreenSEHI100TX User’s Guide 7-25ERRORS RECEIVEDDisplays the number of errors received.COLLISIONSDisplays the number of collisio

Chapter 7: Local Management7-26 SEHI100TX User’s GuidePORT SEG. STATUSDisplays the segmentation status of the port selected. The two possible status m

The Device Statistics ScreenSEHI100TX User’s Guide 7-277.9.1 Selecting the Appropriate Module/PortWhen the Device Statistics screen first appears, stat

Chapter 7: Local Management7-28 SEHI100TX User’s Guide7.9.4 Setting the UPDATE-FREQency FieldThis field changes the time interval between Stack/Module/

SEHI100TX User’s Guide A-1APPENDIX AEPIM SPECIFICATIONSA.1 EPIM SPECIFICATIONSEPIMs enable the connection of the SEHI to the network using different m

Appendix A: EPIM SpecificationsA-2 SEHI100TX User’s GuideA.1.2 EPIM-100FX The EPIM-100FX shown in Figure A-2 supports Multimode Fiber Optic cabling. Th

EPIM SpecificationsSEHI100TX User’s Guide A-3A.1.3 EPIM-100FMBThe EPIM-100FMB shown in Figure A-3 supports multimode fiber optic cabling and has an SC s

Contentsvi SEHI100TX User’s Guide CHAPTER 5 CONNECTING TO THE NETWORK 5.1 Connecting the SEHI to the Network ...

Appendix A: EPIM SpecificationsA-4 SEHI100TX User’s GuideThe transmitter power levels and receive sensitivity levels listed are peak power levels after

SEHI100TX User’s Guide B-1APPENDIX BIMAGE FILE DOWNLOAD USING OID STRINGSThis appendix provides instructions for setting up a TFTP server and to downl

Appendix B: Image File Download Using OID StringsB-2 SEHI100TX User’s GuideB.1 SETTING UNIX WORKSTATION AS TFTP SERVERDownloading an image file require

Standard Local DownloadSEHI100TX User’s Guide B-34. Store the hex image file in the /tftpboot directory as sehi.hex.5. Edit the /etc/inetd.conf file b

Appendix B: Image File Download Using OID StringsB-4 SEHI100TX User’s GuideTable B-1 OIDs and SettingsStep OID Name OID NumberDataTypeSNMP OID Data1.

SEHI100TX User’s Guide Index-1Numerics100BASE-TXcable length 3-2crosstalk 3-2impedance 3-2jitter 3-2noise 3-2propagation delay 3-3temperature 3-3AAgen

IndexIndex-2 SEHI100TX User’s GuideIIP address 7-13LLANVIEW 6-2LEDs 6-3Local Management 7-1accessing 7-6community name table 7-9configuration screen 7

POWER SUPPLY CORDThe mains cord used with this equipment must be a 2 conductor plus ground typewith minimum 0.75 mm square conductors and must incorpo

ContentsSEHI100TX User’s Guide vii 7.9 The Device Statistics Screen.............. 7-247.9.1 Selecting the Appr