Cabletron Systems SEHI-22FL manual Chapter Installation Requirements Specifications

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CHAPTER 3

INSTALLATION REQUIREMENTS AND

SPECIFICATIONS

This chapter describes cabling requirements, network guidelines, and operating speciﬁcations for the SEHI.

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C AUT IO N

The network must meet the requirements and conditions speciﬁed in this chapter to obtain satisfactory performance from this equipment. Failure to follow these guidelines can result in poor network performance.

The network must meet the requirements and conditions speciﬁed in this chapter to obtain satisfactory performance from this equipment. Failure to follow these guidelines can result in poor network performance.

3.1CABLE SPECIFICATIONS

The SEHI-22FL network ports support 10BASE-FL Multimode Fiber Optic cabling.

Ethernet Port Interface Modules (EPIMs) expand a network using Unshielded Twisted Pair (UTP), Shielded Twisted Pair (STP), Multimode Fiber Optic, Single Mode Fiber Optic, or Thin Coaxial cabling. For information concerning EPIMs, refer to Appendix A.

The rear panel Interconnect Bus port supports Cabletron Systems HubSTACK Interconnect cables for stackable applications.

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

SEHI User’s Guide

3-1

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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-22FL Sehi 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 Environmental Requirements Physical SpecificationsAgency Approvals 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 the Sehi to the Network Chapter Connecting to the NetworkConnecting Network Ports 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 Appendix a Epim Information Epim SpecificationsEPIM-T 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