Cabletron Systems SEH-24, SEH-32, SEH-34 Rack Mounting the SEH, Installing the SEH in the Rack

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INSTALLATION

3.2.3Rack Mounting the SEH

Refer to Figure 3-4 and perform these steps to install the SEH in a 19-inch rack.

1.Remove four cover screws (two from each side) located along the front edges of each side of the SEH.

2.Using the four cover screws removed in step 1, attach the rack mounting brackets to each end of the SEH.

Rack Mounting

Brackets (2)

HubSTACK 10BASE-T HUB WITH LANVIEW®

SEH-24

Screws (4)

Figure 3-4. Installing the Rack Mount Brackets

3.With the mounting brackets installed, position the SEH between the vertical frame members of the 19-inch rack and fasten it securely with the mounting screws as shown in Figure 3-5.

19-Inch Rack

HubSTACK 10BASE-T HUB WITH LANVIEW®

SEH-24

Screws (4)

Figure 3-5. Installing the SEH in the Rack

Page 3-5

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Contents 10BASE-T 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 Appendix B Twisted Pair Wiring Tables A-1 Contents InstallationConnecting to the Network TroubleshootingChapter Introduction Using this ManualSEH Overview Introduction Getting HelpPolarity Detection and Correction SEH FeaturesRepeater Functionality Epim Optional FeaturesStackable Capabilities Rack Mount or Wall Mount Hardware Daughter Board Upgrade KitHubSTACK Interconnect Cables Part Description Application NumberHubSTACK 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 TypeAUI Cable Network Port SpecificationsAUI Cable Requirements for the EPIM-A and EPIM-X Modules SEH-32 and SEH-34 Network Port Speciﬁcations SEH-22 and SEH-24 Network Port SpeciﬁcationsPin Champ Connector EPIM-T Installation REQUIREMENTS/SPECIFICATIONS Epim SpecificationsParameter Typical Worst Worst Case Typical Value Budget EPIM-F1/F2EPIM-F3 EPIM-F3Parameter Typical Minimum Maximum EPIM-C Connector TypeEPIM-A and EPIM-X EPIM-A and EPIM-X AUI PortGeneral Operating SpecificationsDelay Times Start of Packets Delay Times JAMJAM Output Fault ProtectionPower Supply Requirements Output Min. Load Max. Load Max PowerPhysical SafetyUnpacking the SEH Installing the SEHStacking the SEH SEH-2410BASE-T HUB with Lanview Disconnect SEH and Sehi Interconnect Cables At the OUT Port Attaching the Strain Relief BracketRack Mounting the SEH Installing the SEH in the RackWall Mounting the SEH Shelf or Table-top Installation Free-Standing InstallationInstallation Connecting the SEH to the Power Source Connecting Network Ports SEH-22 and SEH-24 Connecting the SEH to the NetworkEPIM-2 Connecting Network Ports SEH-32 and SEH-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 Mgmt Green Flashing PWR GreenLNK Green CLN RedRCV Yellow Flashing Twisted Pair Wiring Tables Appendix a Twisted Pair Wiring TablesA-2 A-3 A-4 Drop Device From Punch Down To RJ-45 Into Block Wallplate Ofﬁce10BASE-T A-6 A-7 Champ Down Block If Required Ethernet Device SEH-32/34 Punch Wall PlateFigure A-1. Punch Down Block A-9 French Power Supply CordGerman Spanish