3Com 10/100BASE-T4 manual 100BASE-T4 Operation, 100BASE-FX Operation

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100BASE-T Standard

A-5

100BASE-T4 Operation

100BASE-T4 is the IEEE 802.3 speciﬁcation for Ethernet signaling for 100 Mbps over four pairs of Category 3 or better UTP cable.This physical layer standard was speciﬁcally deﬁned to allow 100BASE-T to be deployed over the large installed base of Category 3 voice-grade UTP.

100BASE-T4 uses four pairs of Category 3, 4, or 5 UTP cable, at distances of up to 100 meters. Transmission requires four pairs of cable to lower emissions and meet FCC requirements. You must have four pairs of UTP available for each node to run 100BASE-T4.

100BASE-FX Operation

100BASE-FX is the IEEE 802.3 speciﬁcation for 100 Mbps Ethernet signaling over two strands of ﬁber cabling. 100BASE-FX is used for transmissions over extended distances (up to 2 kilometers [1.24 miles] between nodes), downlinks, and backbones, and is especially useful in any environment subject to electrical interference.

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Contents Fast Etherlink Parallel Tasking Network AdapterUser Guide Adapters3Com Corporation 5400 Bayfront Plaza Santa Clara, California Lifetime Warranty Asia Contents Configuring Software Settings Cispr B Compliance Figures Tables How to Use This Guide About this GuideIntroduction Conventions Print Autolink.logAdapter automatically senses and switches to either Introduction10/100BASE-T4 PCI Adapter Adapter Features PCI Technology Installing the Adapter Inspecting the Adapter3C59X EtherDisk diskette version 5.1 or above Installing the Boot Prom Installing the AdapterConnecting to the Network PCI Computer with PCI and Eisa SlotsRJ-45 connector Connecting to the Network Summary of Driver Loading Procedures Loading the NetworkDrivers Using the EtherDisk Diskette Accessing DOSUsing Windows Conﬁrming Adapter Installation for Windows System Properties box appears, detailing your system setupName of the installed 3Com adapter appears, as follows This conﬁrms the adapter’s installationUsing NetWare ODI One Adapter in a ClientAutoLink Requirements AutoLink Installation At the prompt, typeAlternatively, at the prompt, type ESC=Cancel Read the screen and press EnterMultiple Adapters in a Client FEA0 Select Conﬁguration and Diagnostic Program and press Enter Main menu appearsLoading Ndis Drivers One or More Adapters in a ServerUpdating Ndis Drivers Auto Select Media TypeFollow the instructions displayed in the subsequent screens Transcend PC Link SmartAgent Driver Agents Desktop Management InterfacePerforming Troubleshooting Diagnostic Tests Troubleshooting with the Diagnostic TestsAfter performing the diagnostic tests, reboot your computer Before Running the TestsTypes of Tests Fast EtherLink 10/100BASE-T4 PCI adapterStarting the Diagnostic Program Running the Group 1 TestsRunning the Group 3 Test Setting Up an Echo Server 3C59XCFG Getting Help If a Test Fails To print the ﬁle, type Changing the Test Setup Miscellaneous ChecksTo change the test parameters, follow these steps LEDs LEDPin assignments for the RJ-45 connector When properly connected to a 10BASE-T network,Cabling Adapter Cabling RequirementsTwisted-Pair Cable 10BASE-T Operation 10BASE-T Speciﬁcations100BASE-T Standard 100BASE-TX Operation100BASE-TX designates the Ieee 802.3 speciﬁcation for 100BASE-T4 Operation 100BASE-FX OperationRJ-45 Connector Pin Assignments Figure A-1 shows the RJ-45 connector pin assignmentsSettings Changing Software Settings To change the software option settings, follow these stepsType at the prompt Select Adapter Installed Adapters Continue this procedure with any of the other options Press Tab to highlight OK. Press Enter\CONFIG\3C595.SET Specifications Adapter SpeciﬁcationsOn-line Technical Services 3Com Bulletin Board ServiceTechnical Support World Wide Web Site 3ComForum on CompuServeTo use 3ComForum Log on to CompuServe Press Return to see the 3ComForum main menu3ComFacts Automated Fax Service Support from Your Network SupplierLocal numbers are available within the following countries Returning Products for Repair Details about recent conﬁguration changes, if applicableTo obtain an RMA number, call or fax Glossary 100BASE-TAuto Select Media Type BusEIA/TIA EMM386MAC STP Index NumericsDOS Ndis Network Driver Optimization option setting B-2 Windows 3.X 3-3 Windows Limited Warranty 3Com Corporation Bayfront Plaza Interference Handbook CE Notice