3Com EISA 10/100BASE-T manual RJ-45 Connector Pin Assignments, Cabling Requirements

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A-2 APPENDIX A: SPECIFICATIONS

RJ-45 Connector Pin Assignments

Figure A-1 shows the RJ-45 connector pin assignments.

R D – ( 6 ) R D + ( 3 ) T D – ( 2 ) T D + ( 1 )

8

7

6

5

4

3

2

1

12 345678

Figure A-1 RJ-45 Connector Pin Assignments

When Category 5 UTP cable is used, the pin assignments are identical for 10BASE-T and 100BASE-TX.

Cabling Requirements

When properly connected to a 10BASE-T network, the

Fast EtherLink EISA adapter operates in 10BASE-T mode and supports standard 10BASE-T cable topologies and types, including Category 3, 4, or 5 UTP for 10 Mbps.

When properly connected to a 100BASE-TX network, the Fast EtherLink EISA adapter operates in 100BASE-TX mode and supports Category 5 UTP cable only.

In either case, the cable, quality, distance, and connectors must comply with the EIA/TIA 568 “Commercial Building Wiring Standard” and the Technical Services Bulletin TSB38 standards.

The maximum UTP cable distance is 100 meters at either speed.

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Contents Adapters Fast Etherlink Parallel TaskingNetwork Adapter User Guide3Com Corporation 5400 Bayfront Plaza Santa Clara, California Lifetime Warranty France, Israel Contents Loading Network Drivers Cispr B Compliance Figures Tables Introduction How to Use This GuideAbout this Guide Print Autolink.log ConventionsSingle-slot, 32-bit half-card Adapter FeaturesIntroduction Procedure Overview Procedures described in this guide are shown in FigureHardware Installation Overview Installing the HardwareInserting the Fast EtherLink Eisa Adapter Installing the Boot PromInspecting the Adapter Computer with PCI and Eisa Slots List of devices appears, arranged by type Conﬁrming Adapter InstallationName of the installed 3Com adapter appears, as shown below Connecting to the Network Installing the Hardware Auto Select Media Type Adapter Conﬁguration Overview Configuring the AdapterConﬁguring the Adapter Using a NOS Other Than WindowsUsing Windows Complete one of the following instructions Software Option SettingsMultitasking environments, choosing Media TypeNetwork Driver Optimization Full DuplexAt the prompt, type Changing the SettingsI N N U Press Tab to highlight OK. Press Enter Continue this procedure with any of the other optionsSecond dialog box appears Select Adapter Installed Adapters Drivers Loading NetworkLocating the Network Drivers Accessing DOSOne Eisa Adapter in a Client Describes how to access DOS from various operating systemsLoading NetWare ODI Drivers Loading Network Drivers To view the full text of the license agreement, press F1 Alternatively, at the prompt, typeHave only one 3Com Bus Master adapter installed To print the ﬁle, type Multiple Eisa Adapters in a ClientWhen the program has ﬁnished a Save the conﬁguration Main menu appears Reboot the computer Finding the Adapter’s Slot NumberRepeat a for the second adapter One Eisa Adapter in a Server Loading NetWare ODI Drivers Multiple Eisa Adapters in a ServerFinding the Adapter’s Port Address for Multiple Adapters For the latest NLMs, contact Novell For NetWare 3.12, 4.0, orTo load other types of network drivers, follow these steps Loading Windows 95 DriversLoading Non-NetWare Drivers Windows Ndis DriversNdis Windows for Workgroups Windows NT, versionAdditional Drivers Transcend PC Link SmartAgent Driver AgentsDesktop Management Interface Illustrates how the procedures in this chapter might be used Performing Troubleshooting Diagnostic TestsBefore Running the Tests Diagnostic Tests OverviewTypes of Tests Starting the Diagnostic ProgramPress Enter to start the tests Command Line AccessRunning the Group 1 Tests To run the Group 1 tests, follow these stepsMbps or 100 Mbps Running the Group 3 TestSetting Up an Echo Server Enable the Group 3 test by selecting the Enable Group button Getting Help If a Test Fails To change the test parameters, follow these steps Changing the Test SetupMiscellaneous Checks LED LEDsPerforming Troubleshooting and Diagnostic Tests Local area network SpecificationsAdapter Card Speciﬁcations CSMA/CD local area networkMaximum UTP cable distance is 100 meters at either speed RJ-45 Connector Pin AssignmentsWhen properly connected to a 10BASE-T network, Cabling RequirementsTechnical Support On-line Technical Services3Com Bulletin Board Service Access by ModemTo use ThreeComForum Log on to CompuServe 3ComFacts Automated Fax ServiceWorld Wide Web Site ThreeComForum on CompuServeDetails about recent conﬁguration changes, if applicable Support from Your Network SupplierLocal numbers are available within the following countries To obtain an RMA number, call or fax Returning Products for RepairAUI cable GlossaryDriver BackboneBackplane BusEthernet Echo serverEMM386 Twisted-pair Parallel TaskingServer TransceiverNumerics SymbolsIndex Diagnostic tests NLMs 4-10, 4-12 NETWARE\SERVER subdirectory 4-11 network Limited Warranty 3Com Corporation Bayfront Plaza Interference Handbook Cispr B Compliance