Cabletron Systems SEHI-34, SEHI-22 Cable Specifications, HubSTACK Interconnect Cable Requirements

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INSTALLATION REQUIREMENTS/SPECIFICATIONS

CHAPTER 2

INSTALLATION

REQUIREMENTS/SPECIFICATIONS

This Chapter describes cabling requirements, network guidelines, and operating speciﬁcations for the SEHI. Be sure to read this chapter before you install the SEHI. Your network must meet the requirements and conditions speciﬁed in this chapter to obtain satisfactory performance from this equipment. Failure to follow these guidelines could result in poor network performance.

2.1CABLE SPECIFICATIONS

The SEHI network ports support both Shielded Twisted Pair (STP) or Unshielded Twisted Pair (UTP) cabling. The Ethernet Port Interface Modules (EPIMs) let you expand your network using UTP, STP, Multimode Fiber Optic, Single Mode Fiber Optic, or Thin Coaxial cabling. The rear panel Interconnect Bus port supports Cabletron Systems’ HubSTACK Interconnect cables for stackable applications.

Take care in planning and preparing the cabling and connections for your network. The quality of the connections and the length of cables are critical factors in determining the reliability of your network. The following sections describe speciﬁcations for each media type.

2.1.1HubSTACK Interconnect Cable Requirements

You stack the SEHI to modules in the stack with the SEHI HubSTACK Interconnect cable available only from Cabletron Systems. Refer to Chapter 1 for cable part numbers.The cable attaches to the SEHI’s rear panel bus port.

The rear panel of the SEHI has an Interconnect Bus Out port (male connector) to stack SEH non-intelligent hubs together. You can stack as many as four SEH’s together with one SEHI.

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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 Local Management InstallationConnecting to the Network TroubleshootingContents Appendix B Twisted Pair Wiring Tables A-1 Chapter Introduction Using this ManualSehi Overview Introduction Getting HelpFlash EEPROMs Sehi FeaturesRepeater Functionality Polarity Detection and Correction Stackable Capabilities Reset Button Lanview LEDs Local ManagementEpim Introduction Optional FeaturesDaughter Board Upgrade Kit Rack Mount or Wall Mount HardwareRelated Manuals HubSTACK Interconnect Cable Requirements Cable SpecificationsJitter LengthInsertion Loss ImpedanceNoise DelayTemperature CrosstalkCable Type Attenuation Maximum Cable Length Fiber Optic Budget and Propagation DelayInstallation REQUIREMENTS/SPECIFICATIONS Terminators ConnectorsThin-Net Network Requirements for the EPIM-C Module Cable TypeNetwork Port Specifications AUI Cable Requirements for the EPIM-A and EPIM-X ModulesAUI 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 COMPreamble Delay Times Start of PacketsDelay Times JAM GeneralJAM Output Fault ProtectionPower Supply Requirements Output Min. Load Max. Load Max PowerPhysical 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 PWRLNK Troubleshooting CLNUsing the Reset Button RCVChapter Local Management Local Management Management Terminal Requirements Management Terminal Connection Console Cable ConﬁgurationSetup Management Terminal Setup ParametersMenu Function Selection Display Setup General 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 ScreenSubNet Mask Default GatewayPort Enable Override Setting the IP AddressSetting the Subnet Mask Using the Port Enable Override Setting the Default GatewayTrap Table Screen Exiting the Configuration ScreenTrap IP Address Configuring the Trap TableSnmp Community Name TrapsSnmp Tools Screen Exiting the Trap Table ScreenGet Next OID PrependGet SetCycles WalkRecall-OID StepGetting the Next OID Getting Individual OIDsViewing Multiple OIDs Setting an OIDWalking Through OIDs Stepping Through OIDsCycling Through OIDs Device Statistics Screen Exiting the Snmp Tools ScreenPort Admin. Status Errors ReceivedCRC Errors Alignment ErrorsPort Seg. Status Enable PortDisable Port Update-FreqSelecting 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 From Punch Down To RJ-45 Into Block Wallplate Ofﬁce 10BASE-TDrop 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 French Power Supply CordGerman Spanish