Cabletron Systems SEHI100TX manual Powering UP and Stacking the Sehi

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Powering Up and Stacking the SEHI

4.5POWERING UP AND STACKING THE SEHI

The following section details the procedures that must be followed to power up and interconnect stacked hubs. Failure to follow this procedure may result in damage to the equipment.

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If you are using an intelligent hub (SEHI) to manage the stack, you must locate the SEHI at the bottom of the stack.

The SEHI must be completely powered up and initialized before powering up and interconnecting the rest of the stack.

NOTE

The SEH and the SEHI have universal power supplies that allow connection to power sources from 100 Vac to 125 Vac @ 4.0 A or 200 Vac to 250 Vac @ 2.0 A, 50/60 Hz.

1.Power up the SEHI by plugging the power cord into the back panel of the SEHI and plugging the other end into a grounded receptacle.

NOTE

Locate the SEHI at the bottom of the stack.

For management purposes, stacked hubs are always numbered from 1 to 5 starting at the bottom.

2.Verify that the PWR LED is on, indicating that the SEHI is receiving power. After the SEHI runs a self test and completes the boot process successfully, the CPU LED blinks green indicating normal operation. If the LED remains red, the processor is faulty; contact Cabletron Systems Technical Support. Do not proceed with the following steps until the CPU LED is a steady blinking green.

Do NOT power up or interconnect any other hubs in the stack

!until the SEHI has successfully completed the boot process.

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3.Power up the SEH above the SEHI in the stack by plugging the power cord into the back panel of the SEH and plugging the other end into a grounded receptacle.

SEHI100TX User’s Guide

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Contents Intelligent Stackable HUB USER’S Guide SEHI100TX User’s Guide FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Contents SEHI100TX User’s Guide Vii Chapter Introduction Using this ManualFollowing conventions are used throughout this document Document ConventionsRelated Manuals Getting HelpSehi Overview Chapter Sehi Features and OptionsSehi Features and Options Sehi FeaturesStackable Capabilities Optional 100BASE-TX and 100BASE-FX EPIMs Rack Mounting CapabilitiesRemote Network Management HubSTACK Interconnect Cable Requirements Chapter Installation Requirements SpecificationsCable Specifications UTP Cable Speciﬁcations Multimode Speciﬁcations for the EPIM-100FX Network Cable Lengths COM Port Requirements Network Port SpecificationsEnvironmental Requirements Operating SpecificationsPower Supply Requirements Agency Approvals Physical SpecificationsUnpacking the Sehi Chapter InstallationNvram Switch Location PRE-INSTALLATION CheckoutSEHI100TX-22 Tabletop or Shelf InstallationScrews Strain-Relief Bracket Rackmount InstallationRackmount Installation Installing the Sehi in the Rack Powering UP and Stacking the Sehi Repeat steps 3 through 6 until all SEH hubs are connected Install an EPIM-100TX or an EPIM-100FX as follows Installing the EPIM-100TX or the EPIM-100FXConnecting to Network Ports Chapter Connecting to the NetworkConnecting the Sehi to the Network Sehi Network Ports Connecting a UTP Segment to an EPIM-100TXPosition X crossed over RX+ TX+ Position = Not crossed over EPIM-100FX Port Connecting a Fiber Segment to the EPIM-100FXTesting the Installation Installation Test Chapter TroubleshootingUsing Lanview Using Lanview Epim 1 RCV LED Using the Reset ButtonSetting 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 ScreenEditing the Community Name Field Configuration Configuration ScreenDisplays the IP address of the Sehi Setting the Subnet Mask Setting the IP AddressUsing the Port Enable Override Setting the Default GatewayTrap Table Screen Exiting the Conﬁguration ScreenExiting the Trap Table Screen 1 Conﬁguring the Trap TableSnmp Tools Screen Snmp Tools ScreenLets you retrieve MIB objects using Snmp protocol Getting the Next OID Setting an OIDGetting Individual OIDs Walking Through OIDs Viewing Multiple OIDsExiting the Snmp Tools Screen Stepping Through OIDsCycling Through OIDs Device Statistics Screen Device Statistics ScreenDisplays the number of errors due to misaligned packets Module Number Sequence Selecting the Appropriate Module/PortExiting the Device Statistics Screen Using the Enable Port CommandUsing the Disable Port Command EPIM-100TX Appendix a Epim SpecificationsEpim Specifications EPIM-100FX Appendix B Image File Download Using Oids Setting UP a Unix Workstation AS a Tftp Server Standard Local Download Table B-1 OIDs and Settings Numerics IndexIndex-2 Power Supply Cord