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Cabletron Systems SEHI100TX-22 Position X crossed over, 6. TX, 2 EPIM-100TX Crossover Switch

Models: SEHI100TX-22

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Position X (crossed over)

Connecting the SEHI to the Network

Position X (crossed over)

1. RX+	5. NC
2. RX-	6. TX-
3. TX+	7. NC
4. NC	8. NC

Position =

(not crossed over)

1. TX+	5.	NC
2. TX-	6.	RX-
3. RX+	7. NC
4. NC	8. NC		1511_11

Figure 5-2 EPIM-100TX Crossover Switch

Connect an EPIM-100TX to a twisted pair segment as follows:

1.Connect the twisted pair segment to the module by plugging the RJ45 connector on the twisted pair segment into the RJ45 port on the module. See Figure 5-2.

2.Plug the RJ45 connector at the other end of the twisted pair segment into the other device as appropriate.

3.Check that the LNK LED on the EPIM-100TX is on. If the LED is off, perform each of the following steps until it is on:

a.Check that the 100BASE-TX device at the other end of the twisted pair segment is powered up.

b.Verify that the RJ45 connector on the twisted pair segment has the proper pinouts.

c.Check the cable for continuity.

d.Check that the twisted pair connection meets the cable specifications outlined in Section 3.1.2.

e.Check that the crossover switch is in the correct position.

If a link is not established, contact Cabletron Systems Technical Support.

SEHI100TX User’s Guide

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Cabletron Systems SEHI100TX-22 manual Position X crossed over, 6. TX, 2 EPIM-100TX Crossover Switch

Contents

SEHI100TX-22 100BASE-T INTELLIGENT STACKABLE HUB USER’S GUIDE Page Only qualiﬁed personnel should perform installation procedures FCC NOTICESEHI100TX User’s Guide SEHI100TX User’s Guide DOC NOTICEVCCI NOTICE CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENTSEHI100TX User’s Guide EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITYCABLETRON SOFTWARE PROGRAM LICENSE UNITED STATES GOVERNMENT RESTRICTED RIGHTSSEHI100TX User’s Guide DECLARATION OF CONFORMITYAND SPECIFICATIONS CONTENTSCHAPTER 2 SEHI FEATURES AND OPTIONS INSTALLATION REQUIREMENTSCHAPTER ContentsCHAPTER 5 CONNECTING TO THE NETWORK TROUBLESHOOTINGAPPENDIX A ContentsEPIM SPECIFICATIONS APPENDIX B IMAGE FILE DOWNLOAD USING OID STRINGSContents viiiSEHI100TX User’s Guide CHAPTER INTRODUCTION 1.1 USING THIS MANUAL1.2 DOCUMENT CONVENTIONS 1.3 GETTING HELP anonymousyour email address 1.4 RELATED MANUALS Chapter 1 IntroductionSEHI100TX User’s Guide 2.1 SEHI OVERVIEW CHAPTER SEHI FEATURES AND OPTIONS2.2 SEHI FEATURES Local Management 2.3 STACKABLE CAPABILITIESRESET Button LANVIEW LEDs2.4 RACK MOUNTING CAPABILITIES 2.5 REMOTE NETWORK MANAGEMENT2.6 OPTIONAL EPIMS CHAPTER INSTALLATION REQUIREMENTS AND SPECIFICATIONS 3.1 CABLE SPECIFICATIONS3.1.1 HubSTACK Interconnect Cable Requirements 3.1.2 UTP Cable Speciﬁcations Fiber Optic Budget and Propagation Delay 3.1.3 Multimode Fiber Optic Cable SpeciﬁcationsPropagation Delay Temperature3.2 NETWORK CABLE LENGTHS The maximum length of an individual UTP segment may be no Network Cable LengthsA DTE SEHI100TX-22 Repeater B DTE3.4 COM PORT REQUIREMENTS 3.3 NETWORK PORT SPECIFICATIONS3.5.3 Agency Approvals 3.5 OPERATING SPECIFICATIONS3.5.1 Power Supply Requirements 3.5.2 Environmental RequirementsChapter 3 Installation Requirements and Speciﬁcations 3.6 PHYSICAL SPECIFICATIONSDimensions H x W x D Weight4.1 UNPACKING THE SEHI CHAPTER INSTALLATIONRear of Chassis NVRAM Switch located behind grating 4.2 PRE-INSTALLATION CHECKOUT4.3 TABLETOP OR SHELF INSTALLATION 4.4 RACKMOUNT INSTALLATIONProceed to Section 4.5, Powering Up and Stacking the SEHI Rack mounting the SEHI involves the following Rack Mounting the SEHI Figure 4-4 Installing the Rack Mounting BracketsFasten the SEHI to the equipment rack securely Proceed to Section 4.5, Powering Up and Stacking the SEHI4.5 POWERING UP AND STACKING THE SEHI 7. Repeat steps 3 through 6 until all SEH hubs are connected 4.6 INSTALLING AN EPIM Chapter 4 Installation 4-10SEHI100TX User’s Guide CHAPTER CONNECTING TO THE NETWORK 5.1 CONNECTING THE SEHI TO THE NETWORK5.1.1 Connecting to Network Ports 5.1.2 Connecting to an EPIM-100TX Figure 5-2 EPIM-100TX Crossover Switch Position X crossed over6. TX 5.1.3 Connecting to an EPIM-100FX or EPIM-100FMB 5.2 TESTING THE INSTALLATION Testing the InstallationSEHI100TX User’s Guide SEHI100TX User’s Guide Chapter 5 Connecting to the Network6.1 INSTALLATION TEST CHAPTER TROUBLESHOOTING6.2 USING LANVIEW SEHI100TX-22 Flashing indicates an irregular LED pulseBlinking indicates a steady LED pulse 6.3 USING THE RESET BUTTON 6.4 SETTING THE NVRAM SWITCH SEHI100TX User’s Guide Chapter 6 TroubleshootingCHAPTER LOCAL MANAGEMENT Table 7-1 Keyboard Conventions 7.1 KEYBOARD CONVENTIONSChapter 7 Local Management SEHI100TX User’s Guide7.2 MANAGEMENT TERMINAL SETUP Connect the console cable to the SEHI as follows Management Terminal Setup Parameters 7.3 ACCESSING LOCAL MANAGEMENT 3. Press ENTER Figure 7-3 Feature Selection Screen 7.4 THE FEATURE SELECTION SCREENFigure 7-4 Community Name Table Screen 7.5 THE COMMUNITY NAME TABLE SCREENCOMMUNITY NAME write access to Local Management. Super-UserACCESS This allows the user to read and write to Local7.5.1 Editing the Community Name Field 7.6 THE CONFIGURATION SCREEN 7.6.1 Setting the IP Address Consult the Network Administrator prior to setting the Subnet Mask 7.6.2 Setting the Subnet Mask7.6.3 Setting the Default Gateway 7.6.4 Using the Port Enable Override7.6.5 Exiting the Conﬁguration Screen 7.7 THE TRAP TABLE SCREEN 7.7.1 Conﬁguring the Trap Table 7.8 THE SNMP TOOLS SCREEN 7.7.2 Exiting the Trap Table ScreenThe following sections describe SNMP Tools screen ﬁelds 7.8.1 Getting Individual OIDs 7.8.2 Getting the Next OID 7.8.3 Setting an OID7.8.5 Walking Through OIDs 7.8.4 Viewing Multiple OIDs7.8.9 Exiting the SNMP Tools Screen 7.8.6 Stepping Through OIDs7.8.7 Cycling Through OIDs 7.8.8 Repeating the Last OID7.9 THE DEVICE STATISTICS SCREEN Displays the number of errors received This command lets the user enable the selected port 7.9.2 Using the ENABLE PORT Command 7.9.3 Using the DISABLE PORT Command7.9.1 Selecting the Appropriate Module/Port 7.9.5 Exiting the Device Statistics Screen 7.9.4 Setting the UPDATE-FREQency FieldAPPENDIX A EPIM SPECIFICATIONS A.1 EPIM SPECIFICATIONSA.1.1 EPIM-100TX Appendix A EPIM Speciﬁcations A.1.2 EPIM-100FXA.1.3 EPIM-100FMB SEHI100TX User’s Guide Appendix A EPIM SpeciﬁcationsAPPENDIX B IMAGE FILE DOWNLOAD USING OID STRINGS B.1 SETTING UNIX WORKSTATION AS TFTP SERVER B.2 STANDARD LOCAL DOWNLOAD Step Appendix B Image File Download Using OID StringsTable B-1 OIDs and Settings SEHI100TX User’s GuideIndex-1 INDEXNumerics SEHI100TX User’s GuidePage FRENCH POWER SUPPLY CORDGERMAN SPANISH