Cabletron Systems SEHI100TX manual Appendix a Epim Specifications, EPIM-100TX

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APPENDIX A

EPIM SPECIFICATIONS

A.1 EPIM SPECIFICATIONS

EPIMs enable the connection of the SEHI to the network using different media types.The SEHI100TX-22 supports the EPIM-100TX and the EPIM-100FX. This appendix provides speciﬁcations for each EPIM.

A.1.1 EPIM-100TX

The EPIM-100TX is an RJ45 connector supporting Unshielded Twisted Pair (UTP) cabling.

The slide switch on the EPIM-100TX determines the cross-over status of the cable pairs. If the switch is on the X side, the pairs are internally crossed over. If the switch is on the = side, the pairs are not internally crossed over. Figure A-1 shows the pinouts for the EPIM-100TX in both positions.

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 A-1	EPIM-100TX Pinouts

SEHI100TX User’s Guide

A-1

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Contents Intelligent Stackable HUB USER’S Guide SEHI100TX User’s Guide FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Contents SEHI100TX User’s Guide Vii Using this Manual Chapter IntroductionDocument Conventions Following conventions are used throughout this documentGetting Help Related ManualsChapter Sehi Features and Options Sehi OverviewSehi Features Sehi Features and OptionsStackable Capabilities Rack Mounting Capabilities Remote Network ManagementOptional 100BASE-TX and 100BASE-FX EPIMs Chapter Installation Requirements Specifications Cable SpecificationsHubSTACK Interconnect Cable Requirements UTP Cable Speciﬁcations Multimode Speciﬁcations for the EPIM-100FX Network Cable Lengths Network Port Specifications COM Port RequirementsOperating Specifications Power Supply RequirementsEnvironmental Requirements Physical Specifications Agency ApprovalsChapter Installation Unpacking the SehiPRE-INSTALLATION Checkout Nvram Switch LocationTabletop or Shelf Installation SEHI100TX-22Rackmount Installation Screws Strain-Relief BracketRackmount Installation Installing the Sehi in the Rack Powering UP and Stacking the Sehi Repeat steps 3 through 6 until all SEH hubs are connected Installing the EPIM-100TX or the EPIM-100FX Install an EPIM-100TX or an EPIM-100FX as followsChapter Connecting to the Network Connecting the Sehi to the NetworkConnecting to Network Ports Connecting a UTP Segment to an EPIM-100TX Sehi Network PortsPosition X crossed over RX+ TX+ Position = Not crossed over Connecting a Fiber Segment to the EPIM-100FX EPIM-100FX PortTesting the Installation Chapter Troubleshooting Installation TestUsing Lanview Using Lanview Using the Reset Button Epim 1 RCV LEDSetting the Nvram Switch Chapter Local Management Local Management Keyboard Conventions Keyboard Conventions FunctionManagement Terminal Setup Console Cable Conﬁguration Management Terminal Setup Parameters Accessing Local Management Sehi Local ManagementFeature Selection Screen Feature Selection ScreenCommunity Name Table Screen Community Name Table ScreenEditing the Community Name Field Configuration Screen ConfigurationDisplays the IP address of the Sehi Setting the IP Address Setting the Subnet MaskSetting the Default Gateway Using the Port Enable OverrideExiting the Conﬁguration Screen Trap Table Screen1 Conﬁguring the Trap Table Exiting the Trap Table ScreenSnmp Tools Screen Snmp Tools ScreenLets you retrieve MIB objects using Snmp protocol Setting an OID Getting Individual OIDsGetting the Next OID Viewing Multiple OIDs Walking Through OIDsStepping Through OIDs Cycling Through OIDsExiting the Snmp Tools Screen Device Statistics Screen Device Statistics ScreenDisplays the number of errors due to misaligned packets Selecting the Appropriate Module/Port Module Number SequenceUsing the Enable Port Command Using the Disable Port CommandExiting the Device Statistics Screen Appendix a Epim Specifications Epim SpecificationsEPIM-100TX EPIM-100FX Appendix B Image File Download Using Oids Setting UP a Unix Workstation AS a Tftp Server Standard Local Download Table B-1 OIDs and Settings Index NumericsIndex-2 Power Supply Cord