Intel 100BASE-TX manual Unit Numbering Convention

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C H A P T E R 3

Intel Express 100BASE- TX Stackable Hub

Unit Numbering Convention

This section provides information about the hub unit numbering convention. The unit numbering convention is invoked when an NMM is installed in one of the Express hubs in a stack.

When Express hubs are stacked, cascaded, and powered, they are assigned “unit” numbers that are stored in nonvolatile memory on the hub motherboard. The NMM assigns units numbers from the top down—the hub at the top of the stack is assigned unit 1, the hub below unit 1 is assigned unit 2, and so on. Unit numbers are assigned according to the physical location of the hub in the stack.

In a fully equipped stack, hubs are assigned unit numbers 1 through 6.

You can identify the unit numbers of the hubs in the stack through your network management software.

As you build your stack to include more hubs, each hub that is added to the stack is assigned a unit number that relates to the position of the unit in the stack. For example, if you have four hubs in your stack and you add a hub to the bottom of the stack, the new unit is assigned unit 5. If you install your new hub at the top of the stack, the new hub is assigned unit 1 and the hubs below the new hub are reset and renumbered in sequence.

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Contents 100BASE-TX Page Statement of Conditions Certificate of the Manufacturer/Importer Limited 1-year hardware warranty Returning a defective productLimitation of liability and remedies Page Contents Index Intel customer support Features OverviewPhysical Description Chassis Major ComponentsPin # MDI-X signal MDI signal Port Front PanelRJ-45 100BASE-TX Ports MDI/MDI-X Switch LED MatrixThis shows the LED matrix on the Express hub Type Label Color MeaningType Label Color Meaning 100BASE-T Media Adapter Slot Expansion SlotPower Receptacle Cascade ConnectorsRear Panel A P T E R Intel Express 100BASE- TX Stackable Hub Installing Removing Express Hub Site Preparation Operating Requirement EnvironmentPackage Contents Required Tools and MaterialsInstalling an Express hub Installing the Hub in a RackInstalling the Hub on a Table or Shelf Completing the InstallationPage Installing Multiple Hubs Physical Requirements for Installing Multiple HubsStacking and Cascading Hubs Mounting Requirements for Installing Multiple Hubs Installing Optional Modules in the HubInstalling Network Management Modules Installing and Connecting Multiple Hubs Removing an Express hub Removing and Installing Filler Panels Removing a filler panel Physical Configuration Guidelines Making Connections to 100BASE-T PortsNetwork Configuration Decisions Mbps Network DevicesConnecting Cables to the Hub Verifying Installation Checking the LEDsOther Items To Check Color Status indicationsUnit Numbering Convention 100BASE-T Network Configurations 100BASE-T Shared LANConnecting 100BASE-T Workstations to the Hub 100BASE-T Switched LAN 100BASE-TXA P T E R Intel Express 100BASE- TX Stackable Hub Appendix a Technical Specifications Optional Equipment Technical SpecificationsElectrical Specifications Network Protocol and Standards CompatibilityPhysical Specifications Environmental SpecificationsSafety Agency Approvals Electromagnetic EmissionsOptional Equipment Media AdaptersInterface Options Network Management Module 100BASE-TX Host ModulesP E N D I Page Physical Layer Media Specifications Appendix B 100BASE-T Topology Rules and GuidelinesRepeater Rules 100BASE-FXNetwork Topology Extensions 100BASE-T network topology of 400 meters 100BASE-T network topology of 521.6 meters Calculating Round Trip Collision Delay 100BASE-TSTP DTE types Maximum round trip Delay value Index D E NMM D E Intel customer support