Cabletron Systems SEHI-22FL manual Connecting a Fiber Segment to an EPIM-F1/F2/F3

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Connecting the SEHI to the Network

If a link is not established, contact Cabletron Systems Technical Support.

5.1.3Connecting a Fiber Segment to an EPIM-F1/F2/F3

When connecting a ﬁber optic link segment to an EPIM-F1, F2, or F3 keep the following in mind:

•When connecting a ﬁber optic link segment with SMA 906 connectors to an EPIM-F1 with SMA ports, ensure that the half alignment sleeves (shown in Figure 5-3) are in place on each connector. A full alignment sleeve will damage the receive port. SMA 905 connectors do not need alignment sleeves.

•Connect a segment with ST connectors to an EPIM-F2 or EPIM-F3 by inserting the connector into the port with the alignment key on the connector inserted into the alignment slot on the port. Turn the connector clockwise to lock it down.

•The physical communication link consists of two strands of ﬁber optic cabling: the Transmit (TX) and the Receive (RX). The TX strand from the applicable port on the module connects to the receive port of a ﬁber optic Ethernet device at the other end of the segment. The RX strand of the applicable port on the module connects to the transmit port of the ﬁber optic Ethernet device.

•Label the ﬁber optic cable to indicate which ﬁber is receive and which is transmit. Fiber optic cable purchased from Cabletron Systems is labeled so that one ﬁber is labeled 1, and the other ﬁber is labeled 2 at both ends of the cable. For cable not purchased from Cabletron Systems, label the cable as described above.

Do not touch the ends of the ﬁber optic strands, and do not let

!the ends come in contact with dust, dirt, or other contaminants.

C AUT IO N Contamination of the ends causes problems in data transmissions. If the ends become contaminated, clean them with alcohol using a soft, clean, lint free cloth.

SEHI User’s Guide

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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 Chapter Introduction Using this ManualFollowing conventions are used throughout this document Document ConventionsRelated Manuals Getting HelpSEHI-22FL Chapter Sehi Features and OptionsSehi Overview Sehi FeaturesRemote Network Management Capabilities Stackable CapabilitiesEpim Optional FeaturesCable Specifications Chapter Installation Requirements Specifications2 10BASE-FL Fiber Optic Network Requirements HubSTACK Interconnect Cable Requirements3 10BASE-T UTP and STP Cable Speciﬁcations SEHI-22FL Network Ports Network Port SpecificationsTransceiver Requirements COM Port RequirementsFlash Memory Operating SpecificationsPower Supply Requirements Environmental Requirements Physical SpecificationsAgency Approvals Unpacking the Sehi Chapter InstallationInstalling the Sehi PRE-INSTALLATION TestTabletop or Shelf Installation Tabletop or Shelf InstallationAttaching the Strain-Relief Bracket Rackmount InstallationRack Mounting the Sehi Inch Rack Stacking the SehiStacking the Sehi Disconnect SEH and Sehi Interconnect Cables at the OUT Port Connecting the Sehi to the Power SourceADDING/REPLACING Epims Installing an EpimConnecting the Sehi to the Network Chapter Connecting to the NetworkConnecting Network Ports Connecting to the Network Connecting the Sehi to the Network EPIM-T Crossover Switch Connecting a UTP Segment to an EPIM-TConnecting 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 Connect an EPIM-A to an external network segment as follows Connecting an AUI Cable to an EPIM-AEPIM-A EPIM-X Connecting an AUI Cable to an EPIM-XFinishing the Installation Installation Checkout Chapter TroubleshootingUsing Lanview Using Lanview Using the Reset Button Setting the Nvram Switch Chapter Local Management Keyboard Conventions Function Local Management Keyboard ConventionsManagement Terminal Setup Console Cable Conﬁguration Management Terminal Setup Parameters Sehi Local Management Accessing Local ManagementFeature Selection Screen Feature Selection ScreenCommunity Name Table Screen Community Name Table ScreenBASIC-READ Configuration Configuration ScreenDisplays 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 Parameter Typical Minimum Maximum EPIM-F3Figure A-4 EPIM-C EPIM-CFigure A-5 The EPIM-A and EPIM-X EPIM-A and EPIM-X AUI PortAppendix B Image File Download Using OIDsSetting UP a Unix Workstation AS a Tftp Server Standard Tftp Download Standard Tftp DownloadTable B-1 Standard Tftp Download Procedure Numerics IndexIndex-2 Sehi User’s Guide Power Supply Cord