Intel Basic Rules, Distance limitations, 100BASE-T4 and 100BASE-TX, 100BASE-T4 and 100BASE-FX

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A P P E N D I X A Intel Express 100BASE-T4 Stackable Hub

Media

Cable

Connector

Coding

specification

type(s)

type(s)

scheme

 

 

 

 

100BASE-T4

CAT 3, 4, 5 UTP

RJ-45

8B/6T

 

(4-pair wire)

 

 

100BASE-TX

CAT 5 UTP

RJ-45

4B/5B

 

(2-pair wire)

 

 

100BASE-FX

62.5/125 micron

SC

4B/5B

 

fiber optic cable

 

 

 

(2 multi-mode fibers)

 

 

Basic Rules

When deploying 100BASE-T4 Fast Ethernet, you should follow three basic rules:

UTP cable length from repeater to workstation or switch can’t exceed 100 meters (328 feet).

Fiber cable length from repeater to workstation or switch can’t exceed 131 meters (429 feet) .

You can’t use UTP cabling to connect Express Stackable Hubs to each other. Express Stackable Hubs are Class I repeaters and can be connected only with Intel Cascade Cables.

Distance limitations

100BASE-T4 and 100BASE-TX

The EIA/TIA 568 wiring standard specifies that UTP wiring must not exceed 100 meters (328 feet) from repeater to workstation or switch. This specification limits collision domain diameter to 200 meters (656 meters).

100BASE-T4 and 100BASE-FX

In a 100BASE-T4/100BASE-FX environment, the collision domain must not exceed 231 meters (757 feet) — 100 meters T4 and 131 meters FX — in diameter.

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Contents User Guide First edition August Second edition Contents Index Customer Support Inside back cover Quick Start Install the hubsPlug power cords into each hub, then check LEDs Connect the stackFeatures OverviewRJ-45 100BASE-T4 ports Physical DescriptionFront panel Stat LED matrixPwr ColAdapter Data %Media ExpansionRear panel Power receptacleCascade connectors Expansion slot Optional equipmentMedia adapter slot Requirements InstallingExpress Hub Installing a Single Hub A P T E R 2 Intel Express 100BASE-T4 Stackable HubA P T E R 2 Installing the Express Hub Stacking HubsInstalling Uplink Modules Removing a Hub from a StackAdding a Network Management Module NMM DevicesConnecting Connecting Cables to the HubChecking the LEDs LED Color Status indicationsUnit Numbering Convention Partitioned PortsUsing a Switch to Connect Hubs Connecting to 100BASE-TX devices 100BASE-TX Uplink ModuleRouting server Connecting to 100BASE-FX devicesConnecting to 10BASE-T devices 100BASE-TX Uplink Module and 10/100 switching hub 100BASE-TX Uplink Module and 10/100 DownlinkTopology Rules Physical Layer Media SpecificationsFast Ethernet 100BASE-T4 and 100BASE-TX Basic RulesDistance limitations 100BASE-T4 and 100BASE-FXRepeater rules Network Topology Extensions Fast Ethernet Topology Rules P E N D I Technical SpecificationsOptional Equipment Optional EquipmentNetwork Management Module NMM Cascade cablesTechnical Specifications Interface Options Safety Agency ApprovalsRepeater Type Electromagnetic Susceptibility Statement of ConditionsElectromagnetic Emissions Voluntary Control Council for Interference Vcci StatementAvertissement Avvertenza Limitation of liability and remedies Limited WarrantyReturning a defective product Index 100BASE-TUTP NMM 100BASE-FX 100BASE-TX Intel Automated Customer Support