Cabletron Systems SEHI-22FL manual Appendix a Epim Information, Epim Specifications, Epim-T

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APPENDIX A

EPIM INFORMATION

A.1 EPIM SPECIFICATIONS

EPIMs enable the connection of the SEHI to the main network using different media types. Cabletron Systems offers a variety of EPIMs. The following sections explain speciﬁcations for each EPIM.

A.1.1 EPIM-T

The EPIM-T is an RJ45 connector supporting UTP cabling. It has an internal Cabletron Systems TPT-T 10BASE-T Twisted Pair Transceiver.

The slide switch on the EPIM-T determines the crossover 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-T 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	1490_29
	4. NC		8. NC	1490_29
	4. NC		8. NC

Figure A-1 EPIM-T Pinouts

SEHI User’s Guide

A-1

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Contents SEHI-22FL Intelligent Stackable HUB USER’S Guide Sehi User’s Guide FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Contents Sehi 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-22FLSehi Features Sehi OverviewStackable Capabilities Remote Network Management CapabilitiesOptional Features EpimChapter Installation Requirements Specifications Cable SpecificationsHubSTACK Interconnect Cable Requirements 2 10BASE-FL Fiber Optic Network Requirements3 10BASE-T UTP and STP Cable Speciﬁcations Network Port Specifications SEHI-22FL Network PortsCOM Port Requirements Transceiver RequirementsOperating Specifications Flash MemoryPower Supply Requirements Agency Approvals Physical SpecificationsEnvironmental Requirements Chapter Installation Unpacking the SehiPRE-INSTALLATION Test Installing the SehiTabletop or Shelf Installation Tabletop or Shelf InstallationRackmount Installation Attaching the Strain-Relief BracketRack Mounting the Sehi Stacking the Sehi Inch RackStacking the Sehi Connecting the Sehi to the Power Source Disconnect SEH and Sehi Interconnect Cables at the OUT PortInstalling an Epim ADDING/REPLACING EpimsConnecting Network Ports Chapter Connecting to the NetworkConnecting the Sehi to the Network Connecting to the Network Connecting the Sehi to the Network Connecting a UTP Segment to an EPIM-T EPIM-T Crossover SwitchConnecting a Fiber Segment to an EPIM-F1/F2/F3 Sehi User’s Guide EPIM-F1, EPIM-F2, and EPIM-F3 Connecting a Thin Coaxial Segment to an EPIM-C Connecting an AUI Cable to an EPIM-A Connect an EPIM-A to an external network segment as followsEPIM-A Connecting an AUI Cable to an EPIM-X EPIM-XFinishing the Installation Chapter Troubleshooting Installation CheckoutUsing Lanview Using Lanview Using the Reset Button Setting 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 ScreenBASIC-READ Configuration Screen ConfigurationDisplays the IP address of the Sehi Setting the IP Address Setting the Default Gateway Trap Table Screen Trap Table ScreenTrap Table Screen Snmp Tools Screen Snmp Tools ScreenAllows the user to retrieve MIB objects using Snmp protocol Getting Individual OIDs Viewing Multiple OIDs Device Statistics Screen Device Statistics ScreenFollowing sections describe Device Statistics screen ﬁelds This command lets the user enable the selected port Port Using the Disable Port Command EPIM-T Epim SpecificationsAppendix a Epim Information EPIM-F1 and EPIM-F2 EPIM-F3 Parameter Typical Minimum MaximumEPIM-C Figure A-4 EPIM-CEPIM-A and EPIM-X AUI Port Figure A-5 The EPIM-A and EPIM-XImage File Download Using OIDs Appendix BSetting UP a Unix Workstation AS a Tftp Server Standard Tftp Download Standard Tftp DownloadTable B-1 Standard Tftp Download Procedure Index NumericsIndex-2 Sehi User’s Guide Power Supply Cord