Cabletron Systems SEHI-32, SEHI-22, SEHI-24, SEHI-34 Connecting a Thin-Net Segment to an EPIM-C

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CONNECTING TO THE NETWORK

6.Check that the EPIM’s LNK LED is on. If the LED is not on, perform the following steps until it is:

a.Check that the power is turned on for the device at the other end of the link.

b.Verify proper “cross-over” of fiber strands between the applicable port on the module and the fiber optic device at the other end of the fiber optic link segment.

c.Verify that the fiber connection meets the dB loss specifications outlined in Chapter 2.

If a link still has not been established, contact Cabletron Systems Technical Support.

4.1.5Connecting a Thin-Net Segment to an EPIM-C

To connect a thin-net segment to an EPIM-C, refer to Figure 4-5 and perform the following steps:

1.Set the Internal Termination Switch to the right of the port and labeled TERM to:

•The on position (•) if the thin-net segment connected directly to the port will be internally terminated at the port.

•The off position (o) if the thin-net segment will not be terminated at the port or externally terminated.

2.If the Internal Termination switch is in the On position, connect the thin-net segment directly to the BNC port as shown in Figure 4-5.

3.If the Internal Termination switch is in the Off position:

a.Attach a BNC tee-connector to the BNC port on the module.

b.Attach the thin-net segment to one of the female connectors on the tee-connector.

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Contents 10BASE-T Intelligent Stackable HUB USER’S Guide Printed On Recycled Paper DOC Notice FCC NoticeCabletron Software Program License Cabletron SYSTEMS, INC Program License AgreementUnited States Government Restricted Rights Exclusion of Warranty Disclaimer of LiabilityTable of Contents Connecting to the Network InstallationTroubleshooting Local ManagementContents Appendix B Twisted Pair Wiring Tables A-1 Chapter Introduction Using this ManualSehi Overview Introduction Getting HelpRepeater Functionality Sehi FeaturesPolarity Detection and Correction Flash EEPROMsLanview LEDs Reset ButtonLocal Management Stackable CapabilitiesEpim Introduction Optional FeaturesRack Mount or Wall Mount Hardware Daughter Board Upgrade KitRelated Manuals HubSTACK Interconnect Cable Requirements Cable SpecificationsInsertion Loss LengthImpedance JitterTemperature DelayCrosstalk NoiseCable Type Attenuation Maximum Cable Length Fiber Optic Budget and Propagation DelayInstallation REQUIREMENTS/SPECIFICATIONS Thin-Net Network Requirements for the EPIM-C Module ConnectorsCable Type TerminatorsAUI Cable Requirements for the EPIM-A and EPIM-X Modules Network Port SpecificationsAUI Cable SEHI-32 and SEHI-34 Network Port Speciﬁcations SEHI-22 and SEHI-24 Network Port SpeciﬁcationsPin Champ Connector EPIM-T Installation REQUIREMENTS/SPECIFICATIONS Epim SpecificationsParameter Typical Worst Worst Case Typical Value Budget EPIM-F1 and EPIM-F2EPIM-F3 EPIM-F3Parameter Typical Minimum Maximum EPIM-C Connector TypeEPIM-A and EPIM-X EPIM-A and EPIM-X AUI PortTransceiver Requirements COMDelay Times JAM Delay Times Start of PacketsGeneral PreamblePower Supply Requirements Fault ProtectionOutput Min. Load Max. Load Max Power JAM OutputPhysical SafetyUnpacking the Sehi Installing the SehiStacking the Sehi Stacking the Sehi Disconnect SEH and Sehi Interconnect Cables At the OUT Port Attaching the Strain Relief BracketRack Mounting the Sehi Installing the Sehi in the RackWall Mounting the Sehi Shelf or Table-top Installation Free-Standing InstallationInstallation Connecting the Sehi to the Power Source Connecting to Network Ports, SEHI-22 and SEHI-24 Connecting the Sehi to the NetworkEPIM-2 Connecting to Network Ports, SEHI-32 and SEHI-34 EPIM-T Cross-over Switch Connecting a UTP Segment to an EPIM-TConnecting to the Network Connecting to the Network Connecting to the Network Connecting a Thin-Net Segment to an EPIM-C EPIM-C EPIM-A Connecting an AUI Cable to an EPIM-AConnecting an AUI Cable to an EPIM-X On Position Toward Back Epim OFF Position Toward Front Finishing the InstallationInstallation CHECK-OUT Chapter TroubleshootingUsing Lanview CPU PWRUsing the Reset Button Troubleshooting CLNRCV LNKChapter Local Management Local Management Management Terminal Requirements Management Terminal Connection Console Cable ConﬁgurationMenu Function Selection Display Setup Management Terminal Setup ParametersGeneral Setup SetupSehi Local Management Local Management Accessing Local ManagementFeature Selection Screen Community Name Table Screen Local Management Using the Local Management ScreensCommunity Name AccessEditing the Community Name Field IP Address Conﬁguration ScreenPort Enable Override Default GatewaySetting the IP Address SubNet MaskSetting the Subnet Mask Using the Port Enable Override Setting the Default GatewayTrap Table Screen Exiting the Configuration ScreenSnmp Community Name Configuring the Trap TableTraps Trap IP AddressSnmp Tools Screen Exiting the Trap Table ScreenGet OID PrependSet Get NextRecall-OID WalkStep CyclesGetting the Next OID Getting Individual OIDsViewing Multiple OIDs Setting an OIDStepping Through OIDs Walking Through OIDsCycling Through OIDs Device Statistics Screen Exiting the Snmp Tools ScreenCRC Errors Errors ReceivedAlignment Errors Port Admin. StatusDisable Port Enable PortUpdate-Freq Port Seg. StatusSelecting the Appropriate Module/Port Using the Enable Port CommandExiting the Device Statistics Screen Using the Disable Port CommandTwisted Pair Wiring Tables Appendix a Twisted Pair Wiring TablesA-2 A-3 A-4 10BASE-T From Punch Down To RJ-45 Into Block Wallplate OfﬁceDrop Device A-6 A-7 Champ Down Block If Required Ethernet Device SEHI-32/34 Punch Wall PlateFigure A-1. Punch Down Block A-9 German Power Supply CordSpanish French