3Com 10/100BASE-T4 4

4PERFORMING

TROUBLESHOOTING AND

DIAGNOSTIC TESTS

This chapter explains how to isolate and solve

10/100BASE-T4 PCI adapter problems.

Make sure that the adapter is correctly installed. (See Chapter 2

for installation instructions.)

This chapter contains information about the following topics:

■Diagnostic tests overview

■Starting the diagnostic program

■Getting help if a test fails

■Changing the test setup

■Miscellaneous checks

The 3Com diagnostic program is a DOS program. If you are

running an operating system or interface other than DOS,

refer to the section “Accessing DOS” in Chapter 3.

Troubleshooting with the Diagnostic Tests

The diagnostic tests on the 3C59X EtherDisk diskette check the

adapter’s overall operation and permit the isolation of faults.

You can run the diagnostic tests after installing the

10/100BASE-T4 PCI adapter, or when a fault is suspected.

If the tests in their default conﬁguration do not isolate the

problem, you can change the test parameters to meet speciﬁc

situations.

Contents

Main 3Com Corporation 95052-8145 Santa Clara, California 5400 Bayfront Plaza L ARRANTY W Page C ONTENTS 4 A B C D F IGURES T ABLES A How to Use This Guide Introduction UIDE Conventions The following tables list text and icon conventions that are used throughout this guide: 1 Page Adapter Features PCI Technology 2 Inspecting the Adapter Installing the Boot PROM Installing the Adapter Connecting to the Network Page Page 3 D Summary of Driver Loading Procedures Using the EtherDisk Diskette Accessing DOS Using Windows 95 Page The next dialog box conrms that the adapter is working properly. Using NetWare ODI One Adapter in a Client Page Using NetWare ODI 3-7 Figure 3-1 AutoLink Information Screen Figure 3-2 Main Menu MAIN MENU Multiple Adapters in a Client Page Page One or More Adapters in a Server Loading NDIS Drivers Updating NDIS Drivers Auto Select Media Type Transcend PC Link SmartAgent Driver Agents Desktop Management Interface 4 TROUBLESHOOTING AND D IAGNOSTIC T Troubleshooting with the Diagnostic Tests Before Running the Tests Types of Tests Starting the Diagnostic Program Running the Group 1 Tests Running the Group 3 Test Page Page Getting Help If a Test Fails Page Changing the Test Setup Miscellaneous Checks LEDs A Adapter Cabling Requirements Twisted-Pair Cable 10BASE-T Operation 10BASE-T Specications 100BASE-T Standard 100BASE-TX Operation 100BASE-T4 Operation 100BASE-FX Operation A-6 APPENDIX A: CABLING RJ-45 Connector Pin Assignments Figure A-1 shows the RJ-45 connector pin assignments. Figure A-1 RJ-45 Connector Pin Assignments B S Changing Software Settings Page Page Page C Adapter Specications Power Requirements Network Interface Physical Dimensions Environmental Operating Range D On-line Technical Services 3Com Bulletin Board Service World Wide Web Site 3ComForum on CompuServe 3ComFacts Automated Fax Service Support from Your Network Supplier Returning Products for Repair G Page Page Page Page I Numerics A B C D E F G H O P Q R S W