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****** Page 1 ****** Fast EtherLink@ XL PCl 10/1 OOBASE-TX Network Interface Card User Guide Member of the 3Com Fast EtherLink XL family of network interface cards 3com.com/ Part No. 09-1363-000 Published February 1998

****** Page 2 ****** 3Com Corporation • 5400 Bayfront Plaza • Santa Clara, California • 95052-8145 Copyright 0 1998, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation. 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change. 3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited tot the implied warranties of merchantability and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time. UNITED STATES GOVERNMENT LEGENDS: If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following: United States Government Legend: All technical data and computer software is commercial in nature and developed solely at private expense. Software is delivered as Commercial Computer Software as defined in DFARS 252.227-7014 (June 1995) or as a commercial item as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DEAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide. If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you. Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries. 3Com, the 3Com logo, EtherDisk, EtherLink, Net Age, Parallel Tasking, SmartAgent, and Transcend are registered trademarks of 3Com Corporation. AutoLink, DynamicAccesst and PACE are trademarks of 3Com Corporation. 3ComFacts is a service mark of 3Com Corporation. Magic Packet is a trademark of Advanced Micro Devices, Inc. Anixter is a trademark of Anixter Bros., Inc. Artisoft and LANtastic are trademarks of Artisoft, Inc. Banyan and VINES are trademarks of Banyan Systems, Incorporated. CompuServe is a registered trademark of CompuServe, Inc. Alpha, DEC, and PATHWORKS are trademarks of Digital Equipment Corporation. Pentium is a registered trademark of Intel Corporation. IBM and OS/2 are trademarks of International Business Machines Corporation. Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation. Novell and NetWare are trademarks of Novell, Inc. Open Desktop and SCO are trademarks of The Santa Cruz Operation, Inc. Other brand and product names may be registered trademarks or trademarks of their respective holders. Guide written by Jean Andersom Edited by Nancy Kurahashi. Technical illustration by Mary Inden. Production by Becky Whitmer. ii

****** Page 3 ****** 1 1 2 3 CONTENTS ABOUT THIS GUIDE Finding Specific Information in This Guide Conventions 2 INTRODUCTION Industry-Leading Performance 1-2 DynamicAccess Software 1-2 Remote Wake-up 1-3 Installation and Configuration 1-3 10/100 Mbps Support 1-3 PC and Server Requirements 1-3 How Do I Install the 3C905B-TX NIC? INSTALLING THE NIC Connecting to the Network 2-3 Connecting the Remote Wake-up Cable 2-4 INSTALLING THE NETWORK DRIVER Windows 95 3-1 Confirming Installation 3-4 Windows NT 3-5 Windows NT Version 4.0 3-5 Updating the Network Driver Installing the Network Driver Windows NT Version 3.51 3-7 Updating the Network Driver Installing the Network Driver 3-5 3-6 3-7 3-8 NetWare for Windows 3.1x, Windows for Workgroups, and DOS 3-9 AutoLink Requirements 3-9 Running the AutoLink Program 3-9 iii

****** Page 4 ****** 4 5 Installing the Novell NetWare Server Driver NetWare Version 4.1 3-10 Multiple NICs 3-11 Supported Network Drivers 3-12 TROUBLESHOOTING Status LEDs 4-1 3Com NIC Diagnostics Program 4-2 Accessing the 3C905B-TX Help System 3-10 4-3 Displaying Release Notes, Frequently Asked Questions, and the KnowledgeBase 4-3 Running the NIC Self-Test 4-4 Running the Echo Test 4-6 3Com Support Services 4-7 Generating a Problem Report 4-8 Removing the 3C905B-TX NIC PACE and 3NICDlAGS Software 4-11 Windows 95 and Windows NT 4.0 4-11 DOS 4-11 Checking the Remote Wake-up Function 4-11 3Com DOS Diagnostic Program 4-12 Crossover Cable Troubleshooting Tips 4-13 Troubleshooting Hubs with Crossover Cable 4-14 Frequently Asked Questions 4-15 Accessing the 3Com World Wide Web Page 4-19 CHANGING CONFIGURATION Configuration Settings 5-1 Displaying Configuration Settings 5-2 Changing Configuration Settings 5-2 Changing PACE Configuration 5-4 Selecting PACE Applications 5-4 Changing PACE Ranges and Protocols 5-5 PACE Advanced Options 5-6 Setting Fast IP 5-6 Using the DOS Configuration Program 5-6

****** Page 5 ****** A B SPECIFICATIONS Specifications A-I RJ-45 Connector Pin Assignments TECHNICAL SUPPORT Online Technical Services B-l World Wide Web Site B-l 3Com Bulletin Board Service B-l Access by Analog Modem B-2 Access by Digital Modem B-2 3ComFacts Automated Fax Service B-2 3ComForum on CompuServe Online Service Support from Your Network Supplier B-3 Support from 3Com B-4 Returning Products for Repair B-6 GLOSSARY INDEX 3C0M CORPORATION LIMITED WARRANTY FCC CLASS B STATEMENT FCC DECLARATION OF CONFORMITY 3COM END USER SOFMARE LICENSE AGREEMENT

****** Page 7 ****** 1-1 1-2 2-1 2-2 2-3 4-1 4-2 4-3 4-4 4-5 4-6 4-7 5-1 5-2 A-I FIGURES 3C905B-TX NIC 1-1 3C905B-TX NIC Installation steps 1-4 Inserting the NIC 2-2 Connecting the Network Cable to the RJ-45 Port Connecting the NIC to the Connector 2-4 LEDs 4-2 3Com NIC Diagnostics Program General Screen Diagnostics Screen 4-5 3Com NIC Diagnostics Program Support Screen Problem Report Main Screen 4-9 Computer Information Screen 4-9 2-3 4-4 4-7 Straight-through and Crossover Cable Pinouts 4-13 3Com NIC Diagnostics Program General Screen 5-3 3Com NIC Diagnostics Properties Screen 5-3 RJ-45 Connector Pin Assignments A-2 vii

****** Page 8 ****** 1 2 3-1 4-1 4-2 5-1 viii TABLES Notice Icons 2 Text Conventions 2 Network Driver Text File Names LED Descriptions 4-2 Frequently Asked Questions Option Settings 5-1 3-12 4-15

****** Page 9 ****** Lifetime Limited Warranty 3Com’s EtherLink@, Fast EtherLink, TokenLink@, TokenLink Velocity@, ATMLinkTM PCI, and FDDILinkTM network interface cards have a Lifetime Limited Warranty. For further details, please see 3Com’s Limited Warranty statement in this guide. To ensure the very best 3Com service and support, take the time to complete the product registration card.

****** Page 10 ****** Customers in the countries or regions shown below should send the completed registration card to the appropriate address. Customers in other non-U.S. locations should send the registration card to the U.S. address on the front of the card. • Asia 3Com Asia Ltd., Marketing Department Room 2506-07, 25/F. Citibank Tower Citibank Plaza, Central Hong Kong Australia, New Zealand 3Com Australia, Marketing Department 99 Walker Street Level 7 North Sydney New South Wales 2060 Australia Belgium, Netherlands, Luxembourg 3Com Benelux B.V., Marketing Department Nevelgaarde 8-9 3436 zz Nieuwegein Netherlands France, Israel 3Com France, Marketing Department Immeuble McKinley BP 965 1 , Avenue de l’Atlantique 91976 Les Ulis Courtaboeuf Cedex France Germany, Austria, Switzerland 3Com GmbH, Marketing Department Gustav-Heinemann-Ring 123 D-81739 Muenchen Munich West Germany Italy, Greece, Spain, Portugal, Malta 3Com Mediterraneo Srl, Marketing Department Via Michelangelo Buonarroti, 1 20093 Cologno Monzese MI Italy • Japan 3Com Japan, Marketing Department Shinjuku Sumitomo Building 23F 2-6-1 Nishi Shinjuku, Shinjuku-ku Tokyo 163-02 Japan • Sweden, Finland, Norway, Denmark 3Com Nordic, Marketing Department Torshamsgatan 39 Box 1110 164 22 KISTA Sweden • United Kingdom, Eire 3Com UK Ltd., Marketing Department Pacific House Third Avenue Globe Park Marlow-on-Thames Buckinghamshire, SL7 IYL England

****** Page 11 ****** ABOUT THIS GUIDE About This Guide provides an overview of this guide, describes guide conventions, and tells you where to look for specific information. This guide describes how to install, configure, and troubleshoot the 3Com@ Fast EtherLink@ XL PCl 10/1 OOBASE-TX network interface card (NIC). This NIC is called the 3C905B-TX NIC in this guide. If the information in the README. TXT file on the EtherDisk@ diskette shipped with your product differs from the information in this guide, follow the instructions in the README. TXT file. Finding Specific Information in This Guide This table shows where to find specific information in this guide. If you are looking for NIC features and PC and server requirements Installation and cabling information Network driver installation instructions Troubleshooting Instructions for changing configuration settings Specifications and RJ-45 pin assignments Technical support Turn to Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Appendix A Appendix B

****** Page 12 ****** 2 ABOUT THIS GUIDE Conventions Table 1 and Table 2 list conventions that are used throughout this guide. Table 1 Icon Table 2 Notice Icons Notice Type Information note Caution Warning Text Conventions Description Important features or instructions Information to alert you to potential damage to a program, system, or device Information to alert you to potential personal injury Convention Conunands Screen displays The words “enter” and “type” Menu commands and buttons Words in italicized type Words in bold-face type Description The word “command” means you must enter the command exactly as shown in text and press the Return or Enter key. Example: To launch the DOS diagnostics, enter the following command: a : install This typeface represents information as it appears on the screen. When you see the word “enter” in this guide, you must type something, and then press the Return or Enter key. Do not press the Return or Enter key when an instruction simply says “type.” Menu commands or button names appear in italics. Example: From the Help menu, select Contents. Italics emphasize a point or denote new terms at the place where they are defined in the text. Bold text denotes key features.

****** Page 13 ****** INTRODUCTION The 3Com@ 3C905B-TX network interface card (NIC) provides a high-performance connection to an Ethernet or Fast Ethernet network. This NIC operates at 100 Mbps or 10 Mbps automatically, depending on the speed of the connected hub. 3Com DATA 010 0100 Figure 1-1 3C905B-TX NIC There are two types of 3C905B-TX NICs: the 3C905B-TX NIC and the 3C905B-TX-NM NIC. The 3Com Remote Wake-Up NIC (3C905B-TX), shown in Figure 1-1 , operates as a wake-up NIC only in PCs with the Remote Wake-Up connector attached to the PC motherboard. This NIC provides a network connection with or without the Remote Wake-Up connector installed. The 3C905B-TX-NM NIC does not have the Remote Wake-Up connector or functionality.

****** Page 14 ****** 1-2 CHAPTER 1: INTRODUCTION Unless specifically indicated, the name 3C905B-TX is used throughout this guide to refer to both NICs. This chapter describes the 3C905B-TX NIC features and PC and server requirements. Industry-Leading Performance The 3C905B-TX NIC provides the following performance features: Interactive Access technology to minimize CPU utilization Parallel Tasking@ II architecture for high throughput and low processor utilization Full-duplex 10 Mbps and 100 Mbps support Hardware IP checksum enabled for better Internet and intranet performance Fast IP switching solution that allows you to cost-effectively scale internetwork performance as bandwidth requirements increase 32-bit bus master design with full scatter gather and infinite bursting performance Flow control (IEEE 802.1x), which optimizes performance in switched networks through efficient data transmissions DynamicAccess Software DynamicAccessTM software delivers intelligence at the edge of the network to optimize network performance and control. DynamicAccess features include PACETM Interactive Access technology, dRMON (distributed RMON) support, and support for PACE real-time and multimedia applications. PACE class of service drivers enable prioritization of multimedia and business-critical applications like video conferencing and distance learning. With the 3Com PACE drivers, you can set the class of service for each application. The 3C905B-TX NIC ships with dRMON SmartAgent@ intelligent agents that collect remote management information used by the Transcend@ Edge Monitor System. Together, they provide full RMON network management information for both switched and Fast Ethernet networks.

****** Page 15 ****** Remote Wake-up Remote Wake-up 1-3 Remote Wake-Up support is enabled for the 3C905B-TX NIC. If you are using the 3C905B-TX NIC in a PC that supports Remote Wake-Up through the PCl bus, the 3Com NIC receives wake-up signals and wakes the PC from a sleep state. Installation and Configuration The 3Com NIC Diagnostics program allows you to test the 3C905B-TX NIC, configure it, and display the NIC configuration information. If you are running DOS, you cannot use this program. The NIC Diagnostics Help system includes the 3C905B-TX Release Notes, Frequently Asked Questions, and KnowledgeBase. Microsoft Windows 95 detects the 3C905B-TX NIC and installs the network driver from 3Com EtherDisk Diskette #2. The AutoLinkTM installation software automatically installs all Novell NetWare DOS ODI client software into your operating system. 10/100 Mbps Support The single RJ-45 connector on the network cable supports 10 Mbps or 100 Mbps speeds. NWay auto-negotiation enables the 3C905B-TX NIC to automatically run at the speed that the connected hub supports. The 3C905B-TX NIC works with products that comply with IEEE IOBASE-T and IOOBASE-TX specifications. PC and Server Requirements Your PC or server must have: An 80386, 80486, Pentium, or Alpha processor Alpha processors or drivers work only with Windows NT 4.0 An available bus mastering PCl slot A minimum of 640K of memory

****** Page 16 ****** 14 CHAPTER 1: INTRODUCTION Make sure that you are running the latest BIOS for your PC or server, even if your PC is new. Contact your PC manufacturer for more information. How Do I Install the 3C905B-TX NIC? To complete installation, install the NIC in your PC or server, connect it to the network, and install the network driver. The installations steps are depicted in Figure 1-2. Insert 3C905B-TX NIC Connect NIC to network Which driver installation instructions should I use I do know Install 3Com network driver Reboot Log on to network Chapter 2 Chapter 2 I don’t know Chapter 3 Chapter 3 Ask MIS department Chapter 3 Figure 1-2 3C905B-TX NIC Installation steps Proceed to Chapter 2 to install the 3C905B-TX NIC in your PC or server and connect it to the network.

****** Page 17 ****** 1 2 3 4 5 6 INSTALLING THE NIC There are two types of 3C905B-TX NICs: the 3C905B-TX NIC and the 3C905B-TX-NM NIC. They are both installed in your PC and connected to the network in exactly the same way. After you connect the 3C905B-TX NIC to the network, you connect the Remote Wake-Up cable to the motherboard. Before you begin, make sure that you also have the user guide and the 3C905B-TX EtherDisk diskettes, and that your PC meets the requirements described in Chapter 1. CAUTION: Each NIC is packed in an antistatic container to protect it during shipment. Before handling the NIC, touch the metal chassis of your PC. Maintain grounding by wearing a wrist strap attached to the chassis. Handle the NIC by its backplate and top edge. Do not touch the edge connecton To install the 3C905B-TX NIC in your PC or server and connect it to the network, follow these steps: Open the shipping container and inspect each item for damage. Remove all jewelry from your hands and wrists. Use only insulated or nonconductive tools. Unplug the PC and disconnect all cables. Remove the PC cover. Choose an empty bus mastering PCl slot. A sample PCl slot is shown in Figure 2-1. If you do not know how to identify a PCl slot, check your PC documentation or ask your system administrator. In most PCs, slots 1 and 2 are bus mastering slots. Use slot 1 for the 3C905B-TX NIC if possible. If you have a video PCl card, install it in the last slot (the one farthest from slot 1). Unscrew the screw holding the PCl slot’s backplate and remove it.

****** Page 18 ****** 2-2 CHAPTER 2: INSTALLING THE NIC 7 8 9 10 11 Insert the 3C905B-TX NIC into an empty PCl slot, shown in Fiqure 2-1. Make sure that the NIC is firmly seated in the slot. Screw 3C905B-TX NIC PCl slot 4 Figure 2-1 Inserting the NIC Secure the NIC with the screw you removed earlier. If you are installing the Remote Wake-Up connector, go to “Connecting the Remote Wake-up Cable” at the end of the chapter before replacing the PC cover. Replace the PC cover and reconnect all previously connected cables. Turn on the power to the PC. Proceed to the next section, “Connecting to the Network.”

****** Page 19 ****** Connecting to the Network Connecting to the Network 2-3 1 2 3 You must connect the NIC to the network before installing the network driver. To connect the 3C905B-TX NIC to the network cable, follow these steps: Connect the network cable to the RJ-45 port on the 3C905B-TX NIC, as shown in Fiqure 2-2. RJ-45 port RJ-45 connector LEDs Figure 2-2 Connecting the Network Cable to the RJ-45 Port Connect the other end of the network cable to a IOBASE-T or a IOOBASE-TX network port. Check the LEDs, shown in Fiqure 2-2. After installation, and before you install the network driver, the LEDs indicate the following: 10 LNK LED green 10 Mbps link integrity 100 LNK green – 100 Mbps link integrity • ACT LED – OFF – until the network driver is installed See Table 4-1 for more LED information. If you are not installing the Remote Wake-Up cable, go to Chapter 3 to install the network driver.

****** Page 20 ****** 2-4 CHAPTER 2: INSTALLING THE NIC Connecting the Remote Wake-up Cable A 1 2 3 WARNING: Install the NIC in slot 1 in the PC (as described earlier) before plugging in the 3-pin connector. Only properly trained and authorized personnel should perform service. Contact your PC manufacturer for information about safe service techniques. Insert the cable into the connector on the NIC, shown in Figure 2-3. Twist the cable twice before attaching the cable to the motherboard. Attach the cable to the connector on the PC motherboard, as shown in Fiqure 2-3. The connector is located in different locations depending on the PC. Power supply Connect Remote Wake-Up cable from NIC to mother- board connector Plug in Remote Wake-Up cable to connector here Figure 2-3 Connecting the NIC to the Connector Reconnect all cables and replace the PC cover. The 3C905B-TX Remote Wake-Up NIC is installed. Go back to the previous section “Connecting to the Network” to complete installation.

****** Page 21 ****** INSTALLING THE NETWORK DRIVER This chapter describes how to install the network driver that completes your PC connection to the network. The 3C905B-TX software is installed with the network driver. Instructions are provided for Windows 95, Windows NT, and NetWare DOS client and server driver installation. Table 3-1 provides a complete list of supported drivers and text files that describe how to install them. Go to the section your MIS department recommends and follow the instructions to install the network driver on your PC. You can obtain the latest network drivers on 3Com’s World Wide Web site. To access the Web site, enter the 3Com URL into your Internet browser: infodeli .3com@com/infodeli/swlib/n i c. htln/ The drivers are in the Support area. On the Support Welcome screen, scroll down to Latest Drivers and click. Windows 95 This section describes how to install the network driver when your PC is running Windows 95. This driver supports dRMON and PACE technology. This driver can be used in Microsoft and NetWare environments, and instructions are included for both. You need the Windows 95 system installation files (CAB files) to complete the installation. Do not use the AutoLink software to install the driver if you are running Windows 95.

****** Page 22 ****** 3-2 CHAPTER 3: INSTALLING THE NETWORK DRIVER 1 2 3 4 5 6 7 8 9 Follow these steps to install the network driver in a PC running Windows 95: Install and configure Windows 95 before installing the 3C905B-TX NIC. Install the 3C905B-TX NIC and connect it to the network, as described in Chapter 2. Restart the PC. Windows 95 automatically detects the NIC in the PC. If Windows 95 does not detect the 3C905B-TX NIC, see Chapter 4, “Troubleshooting. ” Select Driver from disk provided by the hardware manufacturer and click 0K. Insert EtherDisk Diskette #2 in your drive and, if the diskette is in drive A, click 0K. Otherwise, supply the correct drive letter and click 0K. Once the 3Com installation files are read, Windows 95 prompts you for the Windows 95 network installation files. Enter the correct path to the Windows 95 files (CAB files) and click 0K. If Windows prompts you to reboot, click No. Open the Windows 95 Control Panel. In the Control Panel, double-click Network. The Network screen appears. For Microsoft networks, select the Configuration tab. For Novell NetWare networks, go to step 10. The default Microsoft network setup contains the following components: Client for Microsoft Networks Client for Novell Networks 3Com EtherLink XL Adapter 3Com dRMON SmartAgent PC software IPX/SPX compatible protocol NetBEUI protocol

****** Page 23 ****** Windows 95 If a protocol is missing, follow these steps: a Select the protocol and click Add. b From the Select Network Protocol menu, select 3-3 10 Microsoft in the left pane. In the right pane, select the protocol and click 0K. If a client is missing, follow these steps: a Select the client and click Add. b From the Select Network Client menu, select Microsoft in the left pane, select the client in the right pane, and click 0K. For NetWare only, on the Network screen, remove the following network components, if present: Microsoft Client for Microsoft Network NetBEUI The network components should now include: Client for NetWare Networks 3Com EtherLink XL Adapter 3Com dRMON SmartAgent PC software IPX/SPX Compatible Protocol If a protocol is missing, follow these steps: a Select the protocol and click Add. b From the Select Network Protocol menu, select Microsoft in the left pane. In the right pane, select the protocol and click 0K. If a client is missing, follow these steps: a Select the client and click Add. b Select Microsoft. c Click Client for NetWare Networks and then Properties. To select the NetWare server, follow these steps: a Under the General tab, set your preferred server and the first network drive and click 0K. b Set the primary network logon to Client for NetWare Networks and click 0K.

****** Page 24 ****** CHAPTER 3: INSTALLING THE NETWORK DRIVER 11 12 13 When the configuration is correct, click the Identification tab. The computer name is the name of your PC. Give your PC a unique name of up to 15 characters. The PC name cannot include blank spaces. A workgroup (such as your department) is composed of the PCs you usually communicate with and the workgroup’s shared resources (such as printers). If you use peer group networking, the workgroup name is your peer group. Peers can see each other when they look in the Network Neighborhood. For information on peer-to-peer networking, see the W95NDlS3.TXT file in the HELP directory on EtherDisk Diskette #1. Your computer description is visible to other members of your workgroup in the Network Neighborhood. Click 0K. The network connection is configured. Windows 95 prompts you to restart the PC. Click Yes. After the PC restarts, you can log on to your network. If you have problems, see Chapter 4. Confirming Installation 1 2 3 4 5 Complete the following procedure to confirm that the 3C905B-TX NIC is properly installed: Double-click the My Computer icon. Double-click the Control Panel icon. Double-click the System icon. The System Properties box appears, detailing your system setup. Click the Device Manager tab. A list of devices appears, arranged by type. Double-click Network Adapters. The name of the installed 3C905B-TX NIC appears: 3Com EtherLink XL Adapter (3C905B)

****** Page 25 ****** Windows NT Double-click the 3C905B-TX name to display a 3-5 6 7 description of the 3C905B-TX NIC and its current status. The dialog box confirms that the 3C905B-TX NIC is working properly. If a yellow exclamation point or a red X appears next to the 3Com EtherLink XL adapter name, go to “Frequently Asked Questions” in Chapter 4 to troubleshoot the NIC. Click Cancel to leave each dialog box and return to the Control Panel. Windows NT This section describes how to install the network driver in a PC running Windows NT versions 4.0 or 3.51. Do not use the AutoLink software to install the driver if you are running Windows NT. Before you begin, obtain EtherDisk Diskette #2 and Windows NT installation files (on hard disk, diskettes, or CD). If Windows NT networking is not installed, you may also need the following information from your MIS department: Whether you are on a LAN or are connecting to one through a modem Protocol used in the Microsoft Windows Network (typically TCP/IP or NetBEUI) Name of the Windows NT server domain or workgroup you belong to IP address if you are not using DHCP Windows NT Version 4.0 1 2 If you already have the 3C905B-TX network driver and want to update it, follow the instructions provided in the next section. Updating the Network Driver To update the driver, follow these steps: Install the 3C905B-TX NIC and connect it to the network, as described in Chapter 2. Restart the PC and start Windows NT.

****** Page 26 ****** 3-6 CHAPTER 3: INSTALLING THE NETWORK DRIVER 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 In the Control Panel, double-click Network. In the Network window, select the Adapter tab. Select 3Com EtherLink XL NIC. Click Update. Insert EtherDisk Diskette #2. The driver is updated. Installing the Network Driver Follow these steps to install the network driver in a PC running Windows NT version 4.0: Install the 3C905B-TX NIC and connect it to the network, as described in Chapter 2. Restart the PC and start Windows NT. In the Control Panel, double-click Network. In the Network window, select the Adapter tab. If this 3C905B-TX NIC is replacing a NIC already installed, follow these steps: a Select the existing 3Com NIC (that is being replaced) in the Installed Adapters group. b Click Remove. c Click Yes in the Warning dialog box. d Reboot the PC and repeat steps 2, a, and 4. Click Add Adapter. In the Select Network Adapter window, select Have Disk. Insert EtherDisk Diskette #2 in drive A and in the Insert Disk window, click 0K. In the Select OEM Option box, select 3Com EtherLink Adapter (3C905B). Click 0K. Select the Protocol tab. Select the appropriate protocol for your network.

****** Page 27 ****** Windows NT In the Network Settings window, click Close. 3-7 12 13 If you are prompted for network information, enter the information supplied by your MIS department. Windows NT prompts you to reboot. Click Yes to restart your PC. The driver installation is complete. To confirm successful installation, double-click the Network icon in the Control Panel. Click the Adapters tab. The 3C905B-TX NIC should appear in the list. If it does not appear, see Chapter 4 for troubleshooting information. Windows NT Version 3.51 1 2 3 4 5 6 7 8 9 10 11 If you already have the 3C905B-TX network driver and want to update it, follow the instructions provided in the next section. Updating the Network Driver To update the driver, follow these steps: Install the 3C905B-TX NIC and connect it to the network, as described in Chapter 2. Restart the PC and start Windows NT. In the Control Panel, double-click Network. Select the 3Com adapter and click Properties. Record the settings for the NIC resources. Click Cancel. Double-click Network again in the Control Panel. In the list of Network Software and Adapter Cards, select the 3Com adapter. Click IJpdate. When prompted, enter the directory path insert EtherDisk Diskette #2, and click 0K. Click 0K to close the Network dialog box and complete the process.

****** Page 28 ****** 3-8 CHAPTER 3: INSTALLING THE NETWORK DRIVER 1 2 3 4 5 6 7 8 9 10 11 12 Installing the Network Driver Follow these steps to install the network driver in a PC running Windows NT version 3.51 : Install the 3C905B-TX NIC and connect it to the network, as described in Chapter 2. Restart the PC and start Windows NT. In the Control Panel, double-click Network. In the Network Settings window, click Add Adapter. In the Add Network Adapter window, select Requires disk from manufacturer. Click Continue. Insert EtherDisk Diskette #2 in drive A and click 0K. In the Select OEM Option box, select 3Com EtherLink XL PCl Adapter (3C905B). Click 0K. The Bus Location window appears. Click 0K. Windows NT copies the files from EtherDisk Diskette #2. If you are prompted for network information, contact your MIS department for the requested information. In the Network Settings Change window, click 0K. Windows NT completes the installation. Click Restart to restart your PC. If you have problems, see Chapter 4 for troubleshooting information.

****** Page 29 ****** NetWare for Windows 3. lx, Windows for Workgroups, and DOS 3-9 NetWare for Windows 3.1x, Windows for Workgroups, and DOS The AutoLink program installs DOS client software and drivers for Novell NetWare in Windows 3. lx, Windows for Workgroups 3.11, and DOS environments. CAUTION: Do not use the AutoLink program if you are running Windows 95 or Windows NT The AutoLink program modifies the CONFIG.SYS and AUTOEXEC.BAT files. It logs on to the server and updates the client software if your MIS department has already configured a 31nstall account on your server. AutoLink Requirements To use the AutoLink program, your computer should have only one 3C905B-TX NIC installed and have 1 MB of free hard disk space. Running the AutoLink Program 1 2 3 4 5 6 7 Install the NIC and connect it to the network, as described in Chapter 2. Reboot, using a DOS diskette. Insert EtherDisk Diskette #1 in drive A. Run the Install program. Enter: a : ins tall This opens the main menu. From the main menu, select Auto Install and Config for NetWare (AutoLink) and press Enter. Select DOS, Windows 3. lx, or Windows for Workgroups 3.11 and follow the instructions. When the auto installation process is finished, remove EtherDisk Diskette #1 and reboot the PC. If you are running Windows 3. lx, after you connect to the NetWare server, run the WSINSTALL program for full Windows support. Contact your MIS department for the location of this NetWare utility.

****** Page 30 ****** 3-10 CHAPTER 3: INSTALLING THE NETWORK DRIVER If you experience problems that occur only when using the AutoLink program, display or print the AUTOLINK.LOG file. The AUTOLINK.LOG file contains a list of all the events that occurred during the AutoLink installation and configuration process. To display the file, enter: type autolink. log I more To print the file, enter: print autolink. log Installing the Novell NetWare Server Driver This driver is installed on a Novell NetWare server running NetWare 4.1 . The NWSERVER subdirectory on EtherDisk Diskette contains the driver (3C90X.LAN file) and NetWare Loadable Modules (NLMs) needed for NetWare 4.1. The NetWare server driver can also be used on a NetWare version 3.12 server. Contact Novell to obtain the NLM files and for instructions for installing the driver in a 3.12 environment. The NetWare 3.11 server is not supported by the 3C905B-TX NIC. NetWare Version 4.1 1 2 3 4 This section describes how to install the NetWare server driver on EtherDisk Diskette #1 on a NetWare version 4.1 server. To import the server driver into a NetWare 4.1 server, follow these steps: Install the NetWare server software. When the NIC Selection menu appears, insert EtherDisk Diskette #1 in the drive. Press Insert to add a driver externally. Press F3 to change the path.

****** Page 31 ****** Installing the Novell NetWare Server Driver At the A: prompt, enter: nwserver 3-11 5 6 7 The installation program gathers the files and prompts you for a NIC selection. Select 3Com Fast XL 10/100 Ethernet NIC. Press Enter to continue the server installation. Multiple NICs To support more than one NIC in a server, edit the AUTOEXEC.NCF file to the following format: load C: NAME= FRAME= load C: Portl and port2 are the 3C905B-TX NIC’s PCl port addresses, and namel and name2 are user-specified names assigned to distinguish the multiple NICs. The FRAME parameter is optional. The default frame type is Ethernet_802.2. If you want the ODI server driver to support more than one frame type, then both the unique NAME= and FRAME= parameters must be paired on each load driver line. The valid frame types are Ethernet_802.2, Ethernet 802.3, Ethernet II, and Ethernet SNAP. The protocols must be bound to the specific driver configuration using the user-assigned unique names. The following example shows how this can be done: load C: PORT=IOOO FRAME=Ethernet 802 .3 NAME=ADPONE load C: PORT=2000 FRAPE=Ethernet 11 NAPE=ADPTWO bind IPX to ADPONE bind IPX to ADPTWO The examples used may require other parameters to work properly. Consult the appropriate Novell NetWare manuals for details.

****** Page 32 ****** 3-12 CHAPTER 3: INSTALLING THE NETWORK DRIVER Supported Network Drivers Table 3-1 provides the text file names and driver names for supported network drivers. These text files describe how to install the network driver and are located in the HELP directory on EtherDisk Diskette #1. Table 3-1 Network Driver Text File Names Network Operating System Windows 95 Windows 95 NDIS 2 Windows NT NetWare Client 32 NetWare 4.1 Server NetWare OS/2 NetWare client for DOS, Windows 3.1, and Windows for Workgroups Windows for Workgroups (NetWare) Windows for Workgroups (NDIS 2) Windows for Workgroups (NDIS 3) Banyan VINES Microsoft LAN Manager IBM LAN Server (DOS) IBM I-AN Server (032) Artisoft LANtastic DEC PATHWORKS Text File Name W95NDlS TXT W95NDIS2.TXT WINNT.TXT CLIENT32.TXT NETWARE.41X NWOS20Dl.TXT AUTOLINK.TXT (NETWARE directory) WFWNETWR.TXT WFWNDlS2.TXT WFWNDlS3.TXT BANYAN.TXT LANMAN.TXT LANSRV.TXT LANSRV.TXT LANTASTK.TXT PATHWORK.TXT Network Driver Name EL90XND3.SYS/ EL90XND4.SYS EL90X.DOS EL90XND3.SYS/ EL90XND4 SYS 3C90X.LAN 3C90X.LAN 3C90X.SYS 3C90X.COM 3C90X.COM EL90X.DOS EL90X.386 EL90X.DOS EL90X.DOS EL90X.DOS EL90X.OS2 EL90X.DOS EL90X.DOS (DOS) and 3C90X.COM (NetWare)

****** Page 33 ****** TROUBLESHOOTING This chapter explains how to isolate and solve NIC problems, including the following topics: Status LEDs 3Com NIC Diagnostics program Accessing the 3C905B-TX Help system 3Com support services Removing the 3C905B-TX software Checking Remote Wake-Up Crossover cable troubleshooting tips Frequently Asked Questions Accessing the 3Com World Wide Web page The 3Com World Wide Web site offers the latest drivers, troubleshooting information, and software updates in the Support area. To access the Web site, enter the 3Com URL address into your Internet browser: infodeli.3com.com/infodeli/swlib/n i c. htm/ Status LEDs Before the LEDs can be used for troubleshooting, the NIC must be connected to the network (Chapter 2) and the network driver must be installed (Chapter 3). The 3C905B-TX NIC has three status LEDs, as shown in Figure 4-1 and described in Table 4-1 .

****** Page 34 ****** 4-2 Table 4-1 LED 10 LNK 100 1-NK CHAPTER 4: TROUBLESHOOTING 3Com DATA CT 0 10 0100 K o Figure 4-1 LEDs LED Descriptions RJ-45 port ACT LED 10 LNK LED 100 LNK LED Description Green Link integrity Green: Link integrity Yellow: Port traffic for either speed Flashing Reversed polarity Reversed polarity Network traffic present Steady Good IOBASE-T connection between NIC and hub Good IOOBASE-TX connection between NIC and hub Heavy network traffic Off No connection between NIC and hub No connection between NIC and hub No traffic 3Com NIC Diagnostics Program Use the 3Com NIC Diagnostics program for Windows 95 and Windows NT to test the 3C905B-TX NIC and change configuration. To change the NIC’s configuration, see Chapter 5. If you are running NetWare Client 32 with the NetWare ODI driver, use the DOS diagnostic program described in the INSTRUCT.TXT file in the HELP directory on EtherDisk Diskette #1. The 3Com NIC Diagnostics program is installed with the driven Driver installation is described in Chapter 3. You must install the driver before you run the program.

****** Page 35 ****** 3Com NIC Diagnostics Program Accessing the 3C905B-TX Help System You can display the 3C905B-TX NIC Help system, a 4-3 1 2 3 4 5 6 Windows Help application that includes 3C905B-TX Release Notes, Frequently Asked Questions, and the 3C905B-TX KnowledgeBase. The Help system was installed with the network driver. To display the 3Com Help system, follow these steps: Install the 3C905B-TX NIC, connect it to the network (Chapter 2), and install the driver (Chapter 3). Click the Windows Start menu. Select Programs. Select 3Com NIC Utilities. Select 3Com NIC Diagnostics Help. The Help screen for the 3Com NIC Diagnostics General screen appears. Click the links to display information about each of the 3Com NIC Diagnostics screens. Displaying Release Notes, Frequently Asked Questions, and the KnowledgeBase 1 2 To access the Release Notes, Frequently Asked Questions, and KnowledgeBase information, follow these steps: Click the Support tab, shown in Fiqure 4-2. Click the Release Notes button on the Support screen. The Release Notes Help screen appears. Click the Release Notes link to display tips about installing and using the 3C905B-TX NIC. Click the Frequently Asked Questions link to display common questions asked by customers and answered by 3Com support experts. Click the Knowledgebase link to display 3C905B-TX NIC compatibility topics. To display the entire Help system, click the Help button on each NIC Diagnostics screen. To display information about any item on each screen, click the question mark (?), drag it to the item, and click. The pop-up box displays information about the selected item.

****** Page 36 ****** 4-4 CHAPTER 4: TROUBLESHOOTING Running the NIC Self-Test 1 2 3 4 5 Run the NIC self-test to check the physical components, connectors, and circuitry on the NIC. Make sure that the 3C905B-TX NIC is installed and connected to the network (Chapter 2) and the network driver is installed (Chapter 3). Start the 3Com NIC Diagnostics program by clicking the Windows Start menu. Select Programs. Select 3Com NIC Utilities. Select 3Com NIC Diagnostics. A warning message appears. Click 0K to disconnect your PC from the network to conduct this test. The 3Com NIC Diagnostics General screen appears, as shown in Figure 4-2. 3, Figure 4-2 3Com NIC Diagnostics Program General Screen To access the 3Com NIC Diagnostics program later by clicking its icon in the system tray, click the check box next to Enable Tray Control.

****** Page 37 ****** 3Com NIC Diagnostics Program 4-5 6 7 Click the Diagnostics tab to display the Diagnostics screen, shown in Fiqure 4-3. set: i:• Figure 4-3 Diagnostics Screen Click Start in the Self-Test area. The following tests run in sequence: Register Access EEPROM FIFO Ethernet Core Loopback Encoder/Decoder Loopback Interrupt You can click Stop to stop the tests. Otherwise, the tests run continuously to completion. Click the Help button to display help for this screen. Click the question mark (?) at the top of the screen, drag it to a test, and click. The pop-up box displays information about the selected test and what to do if the test fails.

****** Page 38 ****** 4-6 CHAPTER 4: TROUBLESHOOTING Running the Echo Test 1 2 3 4 5 6 7 The echo test tests the 3C905B-TX NIC’s ability to transmit and receive data while on the network. You need two PCs with 3Com NICs installed to run an echo test: one PC to send data and one PC to receive data. CAUTION: Running the echo test while connected to an active network can cause intermittent failures. To avoid this, connect to an inactive network on which only the PC being tested is operating. To run the echo test, follow these steps: Make sure that the 3C905B-TX NIC is installed in the sending PC and connected to the network (Chapter 2) and that the network driver is installed (Chapter 3) Install a 3C905B-TX NIC in another PC (the echo server), connect it to the network, and install the network driver. The echo server PC is the responding PC. On both PCs: a b c d e Click the Windows Start menu. Select Programs. Select 3Com NIC Utilities. Select 3Com NIC Diagnostics. Click the Diagnostics tab to display the Diagnostics screen, shown in Figure 4-3. Click Respond on the Diagnostics screen (Figure 4-3) of the responding PC. The Echo Test Responder screen appears on the responding PC. Click Start on the Echo Test Responder screen. On the Diagnostics screen (Fiqure 4-3) of the sending PC, click Send. On the Diagnostics screen (Fiqure 4-3) of the sending PC, click Start. The statistics for the test appear in the Statistic section of the window.

****** Page 39 ****** 3Com NIC Diagnostics Program 4-7 Click the Help button to display Help for this screen. Click the question mark (?) at the top of the screen and drag it to a statistic and click. The pop-up box displays information about the selected statistic. 3Com Support Services The 3Com NIC Diagnostics Program Support screen, shown in Figure 4-4, provides access to the following support services: 3Com NIC Diagnostics program 3C905B-TX NIC Release Notes 3Com BBS telephone numbers and modem speeds 3Com World Wide Web information 3Com problem report generator 1 To access the 3Com NIC Diagnostics support screen, click the Support tab on the 3Com NIC Diagnostics program main screen, shown in Figure 4-2. The 3Com NIC Diagnostics Program Support screen appears, shown in Figure 4-4. it ww#C.. “.em: 3 r.’i*’i 5. Cweg:e Figure 4-4 3Com NIC Diagnostics Program Support Screen

****** Page 40 ****** 4-8 CHAPTER 4: TROUBLESHOOTING Click Diagnostics to run the 3Com NIC Diagnostics program. Refer to the beginning of this chapter for information on how to use the 3Com NIC Diagnostics program. Click Release Notes to display the 3C905B-TX Release Notes, Frequently Asked Questions, and the 3C905B-TX KnowledgeBase. Click BBS Information to display the BBS telephone numbers and modem speeds. The http… button displays the 3Com World Wide Web address. Click Problem Report to generate a 3Com problem report. Generating a Problem Report 1 2 3 4 The problem report generator prompts you for the information that will help 3Com customer support solve your 3C905B-TX NIC installation and configuration problems. You can e-mail the completed report to 3Com customer support and receive an e-mail answer within 2 business days. To generate a problem report, follow these steps: Click Problem Report on the 3Com NIC Diagnostics Program Support screen shown in Figure 4-4. The Problem Report main screen appears, shown in Figure 4-5. Review the screen text and click Next to begin the problem report. The Customer Information screen appears. Enter your company name, address, contact name or names, phone number, and e-mail address. Click Next to display the Computer Information screen, shown in Fiqure 4-6.

****** Page 41 ****** 3Com NIC Diagnostics Program 4-9 I’epwi ‘ira.• Figure 4-5 Problem Report Main Screen I’epwi Ft Figure 4-6 Computer Information Screen

****** Page 42 ****** 4-10 CHAPTER 4: TROUBLESHOOTING 5 6 7 8 9 10 11 12 Enter the following information to complete the form: a b c d e f g h Enter the PC manufacturer and model of your PC. Identify your PC as a client, server, or both, using the pull-down menu. Select your CPU type using the pull-down menu. Enter the numbers of the PC slots that have boards installed. Enter the numbers of the PC slots that support bus mastering. Select your PC operating system using the pull-down menu. Select your network operating system using the pull-down menu. Select your PC processor speed using the pull-down menu. Click Next to display the Problem Description screen. Enter your problem description and the 3Com case number if you have one. Use the pull-down menu to select whether you can reproduce the problem or not, and if so, how often. Click Next to display the Save screen. Click Finish to save the report to the C:3REPORT.TXT file. The Send Report screen appears. Use your mail application to mail the report to one of the addresses on the Send Report screen. Contact your local reseller first, before you e-mail the report. The problem report is completed. To view the report, click View Report. Click 0K. The 3Com NIC Diagnostics Program General screen appears, as shown in Figure 4-2. To exit the program, click Cancel.

****** Page 43 ****** Removing the 3C905B-TX NIC PACE and 3NlCDlAGS Software Removing the 3C905B-TX NIC PACE and 3NlCDlAGS Software 4-11 You can remove the PACE and 3NlCDlAGS software from your PC using Windows 95, Windows NT, or DOS. Windows 95 and Windows NT 4.0 1 2 3 DOS To remove the PACE and 3NlCDlAGS software, follow these steps: In the Windows Control Panel, select Add/Remove Programs. Select 3Com NIC Diagnostic Utilities. Click Add/Remove. The 3C905B-TX NIC software is removed from your PC. To remove the PACE and 3NlCDlAGS software, follow these steps: At the DOS prompt, enter: un3c90x. exe The program removes the 3C905B-TX software. Checking the Remote Wake-up Function If the PC does not boot up when a Magic PacketTN wake-up packet is sent, perform these general troubleshooting steps: 1 Verify that the Wake on Link and Wake on Magic Packet settings are enabled. a Click the Network Neighborhood icon. b Click Properties. c Double-click the 3Com NIC icon and click the Advanced tab. Make sure that Wake on Link and Wake on Magic Packet are enabled. If these settings do not exist, either the NIC is not a Remote Wake-Up NIC or the driver installation file is outdated. For the latest 3C905B-TX drivers and installation files, download EtherDisk diskette 3.1 or later from the 3Com Web site: http : / / 3com. com/

****** Page 44 ****** 4-12 CHAPTER 4: TROUBLESHOOTING 2 3 4 5 Verify the driver version. The driver must be at least version 2.23.40. a Click Properties. b Click the Version tab. c Check the EL90X.SYS driver version. If the version is lower than 3.1 , download an updated version of the driver from the 3Com Web site: http : / / 3com. com/ If the version of the driver is up to date, the keywords are enabled, and the PC still does not wake up, check the BIOS. a Boot the PC and enter the BIOS. b Locate the Wake-Up on PME signal or Wake-Up on LAN event setting. c Verify that the setting is enabled. If you experience difficulties locating these settings, consult the reference manual for your PC, or contact your PC vendor. Remove the PC cover and check the Remote Wake-Up connection. Verify that the Remote Wake-Up cable is plugged in to the NIC as well as to the motherboard. Unplug and reinsert the cable if necessary. If the NIC still does not wake up, install a known good working Remote Wake-Up NIC and the Remote Wake-Up cable in the PC and recheck the PC. If the PC works, contact your network vendor for a replacement of the 3Com NIC. After you verify with a known good working NIC that the PC still does not wake up, there may be a problem with the motherboard. Contact your PC vendor. 3Com DOS Diagnostic Program For information about running the 3Com DOS diagnostic program, see the INSTRUCT.TXT text file in the HELP directory on EtherDisk Diskette #1.

****** Page 45 ****** Crossover Cable Troubleshooting Tips Crossover Cable Troubleshooting Tips 4—13 1 2 3 When you work with network cabling, concentrators, and NICs from different vendors, it is possible to connect everything and still have no communication between file servers and workstations. When there are several unknown variables, it is difficult to determine which component is broken. Use these tips to isolate the problem. Determine whether your equipment complies with the IOBASE-T or IOOBASE-TX standard. This is particularly important for concentrators (hubs or repeaters). Connect a straight-through cable from the PC to the hub. The hub performs an internal crossover so that the signal can go from TD+ to RD+ and TD— to RD—. When you look at an RJ-45 connector from the front, pin 1 is identified on the left-hand side when the metal contacts are facing up. Make sure that the TD+ and TD— wires are twisted together, and that the RD+ and RD— wires are twisted together. The example in Figure 4-7 shows IOBASE-T cabling. 12345678 Straight-through 1 OBASE-T cable Crossover 1 OBASE-T cable 1 2 3 4 5 6 7 8 Figure 4-7 1 2 3 4 5 6 7 8 1 TD- 2 4 5 RD- 6 7 8 2 TD- 4 5 7 8 Straight-through and Crossover Cable Pinouts

****** Page 46 ****** 4-14 CHAPTER 4: TROUBLESHOOTING Using wires from opposing pairs can cause signals to be lost. For a IOOBASE-TX cable, pins and and and #6 must be on the same twisted strand. Troubleshooting Hubs with Crossover Cable 1 2 When there is doubt whether a hub is performing correctly, or if the impedance settings are in question, a crossover cable can help you isolate the failing component. Connect a file server and a client PC back to back with a crossover cable to verify that the NIC and network operating system are properly configured. To make a crossover cable, simply connect TD+ to RD+ and TD- to RD-. The cable performs the crossover that is usually performed by the hub. Make sure that two twisted-pair wires are used. Figure 4-7 shows the pinouts for the crossover cable. On the straight-through cable, make sure that the wires are from the same twisted pair. If the file server and client PC function together as a small network, then either the existing cabling or the hub is the problem. If there is a proper crossover, the appropriate LED comes on. If there is a straight-through connection, the LED does not light. A blinking LED indicates that there is a polarity mismatch (that is, TD+ to RD- instead of TD+ to RD+).

****** Page 47 ****** Frequently Asked Questions Frequently Asked Questions 4-15 Table 4-2 describes some common questions and answers about the 3C905B-TX NIC. Table 4-2 Frequently Asked Questions Question Which PCl slot is best for my PCI NIC? Do I have to configure the 3C905B-TX NIC? What interrupts should I avoid? Are my Fast EtherLink XL network drivers Microsoft-certified? Are my Fast EtherLink XL Bus Master ODI drivers Novell-certified? (continued) Answer 3Com PCl NICs are designed to work in any bus mastering PCl slot, preferably slot 1. Avoid any PCl slot next to an ISA slot. This is often a shared slot and does not support bus mastering. The NICs perform best in those slots that support bus mastering data transfers. Refer to your PC manual for information on which slots support bus mastering data transfers. PCl is a self-configuring bus architecture. Most of the time you only need to install the board in your PC; PCl does the rest. However, on some PCl computers, you may be required to configure the computer’s BIOS manually after installing your PCl NIC. Refer to the owner’s guide for your PC. You should avoid using any interrupts used by ISA/EISA boards that do not properly support shared interrupts (level-triggered). If you do not know or are unsure whether other devices or adapters in your PC support shared interrupts, then avoid using them. Avoid using the same interrupt as your local hard drive (normally IRQ 14 for IDE drives and IRQ 11 for most SCSI host adapters), since not all hard drives support shared interrupts at this time. Avoid using 9 because it cascades with 2. For Novell NetWare servers, avoid using IRQ 7 or 15. These IRQs only support nonshared devices and may cause problems if they are shared between two devices. Yes, the Fast EtherLink XL network drivers are Microsoft-certified. Yes, the Fast EtherLink XL ODI drivers are Novell-certified.

****** Page 48 ****** 4-16 CHAPTER 4: TROUBLESHOOTING Table 4-2 Frequently Asked Questions (continued) Question How do I remove the 3Com icon from my system tray? How can I get a SCO driver? How can I remove the 3C905B-TX PACE and 3NlCDlAGS software? Does the 3C905B-TX NIC support full-duplex? Why does the 3C905B-TX NIC install as a “Generic PCl Ethernet Controller” under Other Devices in the Device Manager? Does the 3C905B-TX NIC support Windows NT version 3.51 on the DEC Alpha PC? (continued) Answer 1 Double-click the 3Com icon to start the 3Com NIC Diagnostics program. 2 In the right bottom corner of the main window, click the Enable Tray Control check box to remove the check mark. 3 Exit the program and the icon will not appear anymore. You can get the SCO driver from the 3Com World Wide Web site. 1 2 3 4 1 2 3 Enter the 3Com URL. http : / / www .3com.com/ Click Drivers. Click Latest Drivers. Download the required files. 90XSC03.EXE is for SCO open Desktop. 90xSC05.EXE is for SCO open Server. In the Windows 95 Control Panel, select Add/Remove Programs. Select 3Com NIC Diagnostic Utilities. Click Add/Remove. The PACE and 3NlCDlAGS software is removed from your PC. Yes, the 3C905B-TX NIC supports full-duplex at 10 Mbps and 100 Mbps operation. When Windows 95 is installed with the 3C905B-TX NIC already installed, Windows 95 Installs the 3C905B-TX NIC as a generic PCl Ethernet controller. To work around this problem, follow these steps: 1 In the Device Manager, double-click Other Devices. 2 Click PCl Ethernet Controller. 3 Click Remove. 4 Restart your PC. No, the 3C905B-TX NIC network driver only supports Windows NT 4.0.

****** Page 49 ****** Frequently Asked Questions Table 4-2 Frequently Asked Questions (continued) 4-17 Question What should I do if a yellow exclamation point appears next to the 3C905B-TX NIC name? What is the hardware IP header checksum? Does the 3C905B-TX NIC support NetWare versions 3.11 or 4.0x? What does Remote Wake-Up do? How can I tell if my PC supports Remote Wake-Up? What can wake up the 3C905B-TX NIC? (continued) Answer 1 In the Device Manager, double-click Other Devices. 2 Click PCl Ethernet Controller or the duplicate 3C905B-TX NIC entry 3 Click Remove. 4 Restart your PC The header checksum is a field in the IP header. When the 3C905B-TX NIC receives IP data, it computes the IP header checksum, and if an error occurred, the packet is dropped and is not passed to the protocol stack. By computing the CRC through hardware, the NIC can increase the performance of IP traffic and reduce CPU processing required by the protocol stack. To avoid having the CRC computed twice (once in the hardware and again in the software by the protocol stack), make sure that your IP protocol does not compute the CRC or if it does, disable that function. The 3C905B-TX does not support NetWare versions 3.11 or 4.0x. These versions require the use of a server driver that conforms to the HSM 3.2 specification. 3Com no longer develops NetWare server drivers to the HSM 3.2 specification. Remote Wake-Up powers up a PC remotely from standby or suspend mode using a wake-up packet that is sent through the LAN. With this method, no one has to be at the PC to turn it on. Remote Wake-Up is also known as Wake on LAN Check to see if there is a 3-pin header for the Remote Wake-Up connector located on the PC motherboard and if your PC has a BIOS that supports wake-up events based on LAN events. If you are unsure, contact your PC vendor for further details. The NIC can be awakened by a Magic Packet wake-up packet sent by management software, or by connecting or disconnecting the TP cable.

****** Page 50 ****** 4-18 CHAPTER 4: TROUBLESHOOTING Table 4-2 Frequently Asked Questions (continued) Question What is a Magic Packet? What is a cable connect/disconnect? What is Fast IP? What are the PC and network requirements to run Fast IP? What are the network configuration requirements for Fast IP? What is the performance gain when using Fast IP? Answer A Magic Packet is a valid Ethernet packet that contains a synchronization stream immediately followed by 1 6 repetitions of the destination MAC address. This Magic Packet is not protocol-specific as long as the protocol contains the sync stream and the 16 repetitions. This Magic Packet can be routed in order to wake up a remote PC. Since it is a valid Ethernet address, the Remote Wake-Up NIC can accept broadcast or multicast packets. The NIC can also be awakened by connecting or disconnecting the network cable. Fast IP is software that improves performance on switched networks. Fast IP allows end systems (desktops and servers) to discover switched communication paths. By creating switched shortcuts, Fast IP allows end stations to bypass the router and transfer data across wire-speed switched paths. Fast IP is part of 3Com’s DynamicAccess software, an advanced network driver that brings intelligence to end systems to provide improved network performance and control. Client requirements: PC running Windows 95 or Windows NT (versions 4 or 3.51 3Com 3C905B-TX NIC, and the TCP/IP stack Network requirements: Switched path between stations and single broadcast domain Fast IP is designed to bypass the router, particularly where the router is a bottleneck, as well as to leverage the switched infrastructure. For Fast IP to create shortcuts around routers, there must be a switched path between source and destination. Fast IP bypasses the router to provide increased performance in switched networks even if only a small number of network nodes use Fast IP. The performance gain obtained when deploying Fast IP is directly related to traffic load on the backbone router. The more traffic pumped to the router, the greater the latency and response time and the higher the performance gain. Internal tests show performance increases on the order of 600% when routers are loaded at 70 to 75%.

****** Page 51 ****** Accessing the 3Com World Wide Web Page Accessing the 3Com World Wide Web Page 4-19 The 3Com Web site features news and information about 3Com products, customer service and support, 3ComS latest drivers, technical information, and more. To access 3Com’s World Wide Web site, enter the 3Com URL into your Internet browser: infodeli .3com.com/infodeli/swlib/n i c. htm/ The Customer Support section has the latest troubleshooting tips for 3Com NICs.

****** Page 53 ****** CHANGING CONFIGURATION This chapter describes how to display and change configuration settings for the 3C905B-TX NIC using the 3Com NIC Diagnostics program. Before you change the settings, contact your system administrator. Configuration Settings Table 5-1 lists each configuration option, the default setting, and the available settings. Table 5-1 Option Settings Option Network Driver Optimization Full-Duplex Boot PROM Media Type PACE NDIS Driver speed Remote Wake-Up Default Setting Available Settings Normal Auto Select Disabled Auto Select Disabled None No Minimize CPU Utilization, Maximize Network Performance, Normal Enabled, Disabled, Auto Select Disabled, 8K, 16K, 32K IOOBASE-TX, IOBASE-T, Auto Select Enabled, Disabled 100 Mbps, 10 Mbps (Windows NT only), N/A (Windows 95) Yes, No A CAUTION: Before the 3C905B-TXNlC A make sure that the switch pott is also set to full-duplex or supports full-duplex and auto-negotiation (NWay). Full-duplex at 100 Mbps improves the performance of switch (hub) connections. The 3C905B-TX NIC supports full-duplex at 10 or 100 Mbps. If the switch supports the NWay feature and full-duplex, the 3C905B-TX NIC automatically runs in full-duplex.

****** Page 54 ****** 5-2 CHAPTER 5: CHANGING CONFIGURATION Displaying Configuration Settings 1 2 3 4 5 6 If you are running Windows 95 or Windows NT, use the 3Com NIC Diagnostics program to display and change configuration settings. The 3Com NIC Diagnostics program is automatically installed with the network driver. Driver installation is described in Chapter 3. To display the current configuration of the 3C905B-TX NIC using the 3Com NIC Diagnostics program, follow these steps: Make sure that the 3C905B-TX NIC is installed and connected to the network (Chapter 2) and the network driver is installed (Chapter 3). Start the 3Com NIC Diagnostics program by clicking the Windows Start menu. Select Programs. Select 3Com NIC Utilities. Select 3Com NIC Diagnostics. The 3Com NIC Diagnostics Program General screen appears, as shown in Figure 5-1. Click NIC Details to display the NIC Details screen. Each configuration setting is displayed with the current value. Use the scroll bar to display the full list. Click the Help button to display Help for this screen. Click the question mark (?) at the top of the screen, drag it to a value, and click. The pop-up box displays information about the selected value. Changing Configuration Settings To change the 3C905B-TX NIC configuration settings with the 3Com NIC Diagnostics program, follow these steps: 1 Click the Properties tab on the 3Com NIC Diagnostics General screen, shown in Fiqure 5-1. The 3Com NIC Diagnostics Properties screen appears, as shown in Figure 5-2.

****** Page 55 ****** 3, Changing Configuration Settings Ced r;C.rn’i F •i 5-3 Figure 5-1 3Com NIC Diagnostics Program General Screen 9.4 Figure 5-2 3Com NIC Diagnostics Properties Screen

****** Page 56 ****** CHAPTER 5: CHANGING CONFIGURATION 2 To display the options for each setting, select the setting and scroll through the options pull-down menu to the right. Click the Help button to display Help for this screen. Click the question mark (?) at the top of the screen, drag it to a value, and click. The pop-up box displays information about the selected value. 3 To select a new value, use the pull-down menu and release the mouse button at the value you want. 4 Click 0K. The new value is selected. Repeat the process to change any configuration setting on the Properties screen. Click 0K to save values or Cancel to exit without saving values. Changing PACE Configuration PACE technology allows you to establish class of service in order to prioritize multimedia and real-time data. Prioritization makes sure that critical data for the selected applications gets through as fast as possible. To use PACE technology, you must have a switched connection over 3Com switches that are enabled for PACE technology. Selecting PACE Applications 1 2 3 To select PACE applications, follow these steps: On the Properties screen shown in Figure 5-2, click PACE Configuration. The PACE Applications screen appears. For the PACE driver to recognize high-priority network traffic, it must know if a stream of network traffic was generated by a specific PACE application. To enable PACE support for an application, click the box next to the appropriate application name. Click 0K.

****** Page 57 ****** Changing PACE Configuration Changing PACE Ranges and Protocols 5-5 1 2 3 4 5 You can add information for PACE applications not listed on the PACE Applications screen. You must specify the port or socket ranges as well as the network protocol being used. Refer to the PACE application user guide. The PACE network driver uses these ranges to determine whether a packet should be treated as high-priority. To add the PACE ranges and protocols, click the Additional Ranges tab. The PACE Additional Ranges screen appears. Enter the beginning of the port or socket range for the application in the Range Start box. The range should be a four-digit hexadecimal value. Enter the Range End value of the port or socket range for the application. The range end should be a four-digit hexadecimal number. If only one port or socket is needed, Range End should match Range Start. Select the protocol that the application uses. The protocol can be TCP, UDP, or IPX. Some applications support multiple protocols and have port or socket ranges for each protocol. In this case, the range or protocol must match the protocol on the PC. For example, if only TCP/IP is installed, do not enter the socket range for IPX; otherwise, you could experience a decrease in performance. Once the Range Start, Range End, and Protocol are entered, click Add. The range is added to the list. To remove a range, select the range in the list and click Remove.

****** Page 58 ****** 5-6 CHAPTER 5: CHANGING CONFIGURATION PACE Advanced Options 1 2 3 PACE Advanced Options are used to fine-tune the way the network driver handles types of PACE traffic. In general, these values need not be altered. Contact your network administrator before using these options. To display the PACE Advanced Options screen, click the Advanced Options tab on the PACE Applications screen. The PACE Advanced Options screen appears. Enter new information as required. Click 0K to set the new value. To review the PACE settings descriptions, click Help on the PACE screens. Setting Fast IP You can use Fast IP to improve performance in an environment where most servers and clients are attached to a switched network. Contact your system administrator before you implement Fast IP. You must have the 3C905B-TX NIC installed and be running either Windows 95 or Windows NT with TCP/IP enabled. In this environment, any application that uses TCP/IP or Microsoft Networking over TCP/IP, FTP, or HTTP can use Fast IR For a detailed explanation of Fast IP, go to the 3Com Web site at: http : / / 3com.com/ 1 Click the Fast IP tab on the PACE Applications screen. 2 To enable Fast IP, click Fast IP enabled on the Fast IP screen. 3 Click 0K to save the change. Using the DOS Configuration Program To use the DOS diagnostic program, see the INSTRUCT. TXT file in the HELP directory on EtherDisk Diskette #1.

****** Page 59 ****** SPECIFICATIONS This appendix lists the specifications and connector pin assignments for the 3C905B-TX NIC. Specifications Network Interface 10 Mbps Ethernet IOBASE-T 100 Mbps Ethernet 1 OOBASE-TX Physical Dimensions Height: Length: Ethernet IEEE 802.3 industry standard for a 10 Mbps baseband CSMA/CD local area network Ethernet IEEE 802.3u industry standard for a 100 Mbps baseband CSMA/CD local area network 8.57 cm (3.75 in.) 12.07 cm (4.75 in.) Environmental Operating Range Operating temperature: 00 to 70 oc (320 to 158 OF) Humidity: 10 to 90% noncondensing Power Requirements Operating voltage: +5 V ± 5% @ 650 mA max

****** Page 60 ****** A-2 APPENDIX A: SPECIFICATIONS RJ-45 Connector Pin Assignments Figure A-I shows the RJ-45 connector pin assignments for the 3C905B-TX NIC. DATA 0 10 o loo Figure A-I 2 3 RD+ 4 5 7 8 12345678 RJ-45 Connector Pin Assignments

****** Page 61 ****** TECHNICAL SUPPORT 3Com provides easy access to technical support information through a variety of services. This appendix describes these services. Information contained in this appendix is correct at time of publication. For the very latest, we recommend that you access 3Com Corporation’s World Wide Web site. For NIC support, call 1-800-876-3266. Online Technical Services 3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems: World Wide Web site 3Com Bulletin Board Service (3ComBBS) 3ComFactsSM automated fax service 3ComForum on CompuServe online service World Wide Web Site Access the latest networking information on 3Com CorporationS World Wide Web site by entering our URL into your Internet browser: http : / / 3com. com/ This service features the latest information about 3Com solutions and technologies, customer service and support, news about the company, Net Ageo Magazine, technical documentation, and more. 3Com Bulletin Board Service 3ComBBS contains patches, software, and drivers for all 3Com products, as well as technical articles. This service is available through analog modem or digital modem (ISDN) 24 hours a day, 7 days a week.

****** Page 62 ****** B-2 APPENDIX B: TECHNICAL SUPPORT Access by Analog Modem To reach the service by modem, set your modem to 8 data bits, no parity, and 1 stop bit. Call the telephone number nearest you: Country Australia Brazil France Germany Hong Kong Italy Japan Mexico P.R. of China Taiwan, R.O.C. U.S.A. Data Rate up to 14400 bps up to 14400 bps up to 14400 bps up to 28800 bps up to 14400 bps up to 14400 bps up to 14400 bps up to 28800 bps up to 14400 bps up to 14400 bps up to 28800 bps up to 28800 bps Telephone Number 61 2 9955 2073 55 11 5181 9666 33 1 6986 6954 4989 62732 188 852 2537 5601 39 2 27300680 81 3 3345 7266 52 5 520 7835 86 10 684 92351 886 2 377 5840 44 1442 438278 1 408 980 8204 Access by Digital Modem ISDN users can dial in to 3ComBBS using a digital modem for fast access up to 56 Kbps. To access 3ComBBS using ISDN, use the following number: 1 408 654 2703 3ComFacts Automated Fax Service 3Com CorporationS interactive fax service, 3ComFacts, provides data sheets, technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week. Call 3ComFacts using your Touch-Tone telephone using one of these international access numbers: Country U.S.A Telephone Number 44 1442 438279 1 408 727 7021

****** Page 63 ****** Support from Your Network Supplier Local access numbers are available within the following Country Australia Belgium Denmark Finland France Germany Italy countries: Telephone Number 1800 123 853 0800 71279 800 17319 98 001 4444 0800 908158 0130 81 80 63 1678 99085 Country Netherlands Norway Portugal Russia (Moscow only) Spain Sweden Telephone Number 0800 0228049 800 11062 0505 442 607 956 0815 900 964 445 020 792954 0800 626403 3ComForum on CompuServe Online Service 1 2 3 3ComForum contains patches, software, drivers, and technical articles about all 3Com products, as well as a messaging section for peer support. To use 3ComForum, you need a CompuServe account. To use 3ComForum: Log on to your CompuServe account. Type: go threecom Press [Return] to see the 3ComForum main menu. Support from Your Network Supplier If additional assistance is required, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services. When you contact your network supplier for assistance, have the following information ready: A list of system hardware and software, including revision levels Diagnostic error messages Details about recent configuration changes, if applicable

****** Page 64 ****** B4 APPENDIX B: TECHNICAL SUPPORT If you are unable to contact your network supplier, see the following section on how to contact 3Com. Support from 3Com If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. Contact your local 3Com sales office to find your authorized service provider using one of these numbers: Regional Sales Office 3Com Corporation P.O. Box 58145 5400 Bayfront Plaza Santa Clara, California 95052-8145 U.S.A. 3Com Asia Limited Australia Hong Kong India Indonesia Japan Korea Malaysia New Zealand Philippines P.R. of China Singapore Taiwan, R.O.C. Thailand 3Com Austria 3Com Benelux B.V. Belgium Netherlands 3Com Canada Calgary Edmonton Montreal Ottawa Toronto Vancouver 3Com France (continued) Telephone Number 800 NET 3Com 61 2 9937 5000 (Sydney) 61 3 9866 8022 (Melbourne) 91 II 644 3974 62 21 572 2088 81 6 536 3303 (Osaka) 81 3 3345 7251 (Tokyo) 82 2 3455 6300 60 3 732 7910 64 9 366 9138 632 892 4476 8610 68492568 (Beijing) 86 21 63501581 (Shanghai) 65 538 9368 886 2 377 5850 662 231 8151 5 43 1 580 170 32 2 725 0202 31 0346 586211 403 265 3266 403 423 3266 514 683 3266 613 566 7055 416 498 3266 604 434 3266 33 1 69 86 68 00

****** Page 65 ****** Regional Sales Office 3Com GmbH Czech Republic/Slovak Republic Germany (Central European HQ) Hungary Poland 3Com Iberia Portugal Spain 3Com Latin America U.S. Headquarters Northern Latin America Argentina Brazil Chile Colombia Mexico Peru Venezuela 3Com Mediterraneo Italy 3Com Middle East 3Com Nordic AB Denmark Finland Norway Sweden 3Com Russia 3Com Southern Africa 3Com Switzerland 3Com Technologies Ireland 3Com U.K. Ltd. Support from 3Com Telephone Number 420 2 21845 800 49 30 34 98790 (Berlin) 49 89 627320 (Munich) 36 1 250 83 41 48 22 6451351 351 1 3404505 34 1 5096900 408 326 2093 305 261 3266 (Miami, Florida) 541 312 3266 55 11 5181 0869 562 633 9242 57 1 629 4847 52 5 520 7841/7847 51 1 221 5399 58 2 953 8122 39 2 253011 (Milan) 39 6 5279941 (Rome) 971 4 349049 45 39 27 85 oo 358 0 435 420 67 47 22 58 47 00 46 8 632 56 oo 007 095 258 09 40 27 11 807 4397 41 31 996 14 14 353 1 820 7077 44 131 240 2900 (Edinburgh) 44 161 873 7717 (Manchester) 44 1628 897000 (Marlow)

****** Page 66 ****** B-6 APPENDIX B: TECHNICAL SUPPORT Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain a Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense. To obtain an RMA number, call or fax: Country U.S.A. and Canada Latin America Europe, South Africa, and Middle East Elsewhere Telephone Number Fax Number 1 800 876 3266, option 2 1 408 326 2927 44 1442 435860 1 408 326 2926 408 764 7120 408 764 7120 44 1442 435822 1 408 764 7120

****** Page 67 ****** GLOSSARY 1 OBASE-T The IEEE 802.3 standard for a 10 Mbps baseband network on twisted-pair cable. IOOBASE-T The IEEE 802.3 standard for a 100 Mbps baseband network over twisted-pair cable. IOOBASE-TX The IEEE 802.3 standard for a 100 Mbps baseband network over two-pair Category 5 UTP or STP wire. dRMON Distributed RMON. The 3C905B-TX NIC SmartAgent intelligent agents collect remote management information and send it to the Transcend Edge Monitor System to provide full RMON network management in switched and Fast Ethernet networks. DynamicAccess software 3Com proprietary technology that optimizes network performance. DynamicAccess features include PACE Interactive Access technology, dRMON (distributed RMON) support, Efficient Multicast Control, and support for PACE real-time and multimedia class of service applications. full scatter gather Technique that reduces CPU utilization by coordinating multiple storage locations for received data with no CPU utilization and then collecting it from multiple memory locations for transmission.

****** Page 68 ****** 2 GLOSSARY infinite bursting Technology that enables the 3C905B-TX NIC to move data continuously across the PCl bus without breaks in the data transfer previously caused by cache size limitations. Previously, cache limitations caused the NIC to release and reacquire the PCl bus after every 64-byte burst. Infinite bursting increases throughput and reduces CPU utilization for better performance. NDIS Network Driver Interface Specification. Defines the network driver architecture and interfaces that let a PC support NICs. This architecture provides a standardized way to write drivers for network NICs. network interface card (NIC) Network interface card. Also called adapter. 10/100 auto-negotiation (NWay) Signaling scheme that allows the NIC and the hub to negotiate between I OBASE-T and IOOBASE-T, and automatically select the highest performance level supported by both devices. PACE technology Technology that enhances both real-time, interactive applications and multimedia (data, voice, and video) applications by enhancing network bandwidth utilization, reducing latency, controlling jitter, and supporting multiple traffic priority levels. Parallel Tasking II architecture 3ComS third-generation Ethernet NIC architecture. Parallel Tasking technology accelerates data transfer by processing data packets simultaneously instead of sequentially. PCl Peripheral Component Interconnect. An advanced high-performance local bus that supports multiple peripheral devices. At 33 MHz, the PCl bus transfers data at up to 1056 Mbps.

****** Page 69 ****** INDEX Numbers 1 0/100 auto-negotiation (NWay) 1-3 5-1 3C90X.LAN file 3-10 3Com Bulletin Board Service (3ComBBS) B-l 3Com NIC Diagnostics program echo test 4-6 NIC self test 4-4 3Com sales offices B-4 3Com URL B-l 3ComFacts B-2 3ComForum B-3 Artisoft LANtastic 3-12 AUTOEXEC.BAT file 3-9 AUTOEXEC.NCF file 3-11 AutoLink auto installation software 1-3, 3-9 AUTOLINK.LOG file 3-10 auto-negotiation 1-3, 5-1 B Banyan VINES 3-12 bulletin board service B-l c changing configuration settings 5-2 crossover cable cable pinouts 4-13 troubleshooting tips DEC PATHWORKS 3-12 diagnostic tests NIC echo test 4-6 NIC self-test 4-4 DOS 3-9 drivers, installing 3-1 DynamicAccess features echo test 4-6 Fast 5-6 4-13 1-2 checking Remote Wake-Up 4-11 CompuServe B-3 CONFIG.SYS file 3-9 configuration settings 5-1 confirming NIC installation in Windows 95 3-4 connecting to the network 2-3 conventions notice icons, About This Guide text, About This Guide 2 CPU utilization 5-1 2 fax service. See 3ComFacts Frequently Asked Questions 4-15 full duplex 5-1 full-duplex 5-1 Help system accessing 4-3 Frequently Asked Questions 4-3 KnowledgeBase 4-3 Release Notes 4-3 IBM LAN Server 3-12 installing drivers Artisoft LANtastic 3-12 AutoLink 3-12 Banyan VINES 3-12 DEC PATHWORKS 3-12 IBM LAN Server 3-12 LAN Manager 3-12

****** Page 70 ****** 2 INDEX NetWare Client 32 3-12 NetWare for DOS, Windows 3.1K and Windows for Workgroups 3-9 NetWare server driver 3-10 supported network drivers WFW NDIS2 3-12 NDIS3 3-12 WFW NetWare 3-12 Windows 95 3-1 16-bit driver 3-12 Windows NT 3-5 installing the NIC 2-1 KnowledgeBase 4-3 LAN Manager 3-12 LAN Server 3-12 LANtastic 3-12 LEDs 2-3, 4-1 Media Type option description Microsoft LAN Manager 3-12 NDIS 2 network driver 3-12 NetWare 3-9 Client 32 3-12 OS/2 3-12 version 4.10 3-10 3-12 network driver optimization 5-1 network supplier support B-3 NIC connecting to the network installing drivers 3-1 LEDs 4-1 network interface A-I O online technical services B-l operating voltage requirements 2-3 p PACE technology 5-4 advanced options 5-6 PC and server requirements 1-3 physical dimensions A-I pin assignments 4-14, A-2 power requirements A-I problem report, generating 4-8 Release Notes 4-3 Remote Wake-Up, checking 4-11 removing the 3C905B-TX NIC PACE and 3NICDIAGS software 4-11 returning products for repair B-6 RJ-45 connector pin assignments A-2 s server driver, Novell NetWare 3-10 support services 4-7 switch port, setting full-duplex 5-1 technical support 3Com URL B-l bulletin board service B-l CompuServe service B-3 fax service B-2 network suppliers B-3 product repair B-6 troubleshooting 4-1, 5-1 crossover cable 4-13 LEDs 4-1 updating the network driver Windows NT 3.51 3-7 Windows NT 4.0 3-5 URL B-l VINES 3-12

****** Page 71 ****** INDEX w Windows 3. lx 3-9 Windows 95 1-3, 3-1 confirming NIC installation 3-4 installing network driver 3-1, 3-12 Windows for Workgroups 3-9, 3-12 Windows NT 3-5, 3-12 version 3.51 3-7 version 4.0 3-5 World Wide Web (WWW) 4-19, B-l 3

****** Page 73 ****** 3Com Corporation LIMITED WARRANTY HARDWARE 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller: Network interface cards Other hardware products (unless otherwise specified in the warranty statement above) Spare parts and spares kits Lifetime 1 year 90 days If a product does not operate as warranted above during the applicable warranty period, 3Com shall, at its option and expense, repair the defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or refund to Customer the purchase price paid for the defective product. All products that are replaced will become the property of 3Com. Replacement products may be new or reconditioned. Any replaced or repaired product or part has a ninety (90) day warranty or the remainder of the initial warranty period, whichever is longer. 3Com shall not be responsible for any software, firmware, information, or memory data of Customer contained in, stored on, or integrated with any products returned to 3Com for repair, whether under warranty or not. SOFMARE 3Com warrants that the software programs licensed from it will perform in substantial conformance to the program specifications therefor for a period of ninety (90) days from the date of purchase from 3Com or its Authorized Reseller. 3Com warrants the media containing software against failure during the warranty period. No updates are provided. The sole obligation of 3Com with respect to this express warranty shall be (at the discretion of 3Com) to refund the purchase price paid by Customer for any defective software products, or to replace any defective media with software which substantially conforms to applicable 3Com published specifications. Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials. 3Com makes no warranty or representation that its software products will work in combination with any hardware or applications software products provided by third parties, that the operation of the software products will be uninterrupted or error-free, or that all defects in the software products will be corrected. For any third-party products listed in the 3Com software product documentation or specifications as being compatible, 3Com will make reasonable efforts to provide compatibility, except where the noncompatibility is caused by a “bug” or defect in the third party’s product STANDARD WARRANTY SERVICE Standard warranty service for hardware products may be obtained by delivering the defective product, accompanied by a copy of the dated proof of purchase, to the 3Com Corporate Service Center or to an Authorized 3Com Service Center during the applicable warranty period. Standard warranty service for software products may be obtained by telephoning the 3Com Corporate Service Center or an Authorized 3Com Service Center, within the warranty period. Products returned to the 3Com Corporate Service Center must be preauthorized by 3Com with a Return Material Authorization (RMA) number marked on the outside of the package, and sent prepaid, insured, and packaged appropriately for safe shipment. The repaired or replaced item will be shipped to Customer, at the expense of 3Com, not later than thirty (30) days after receipt of the defective product by 3Com. WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMERS SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT THE OPTION OF 3COM. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND SATISFACTORY QUALITY. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, OR USE OF ITS PRODUCTS.

****** Page 74 ****** 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR OR MODIPG OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD. LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCT$ EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT THE OPTION OF 3COM. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE. DISCLAIMER Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers or the limitation of liability for personal injury, so the above limitations and exclusions may be limited in their application to you. When the implied warranties are not allowed to be excluded in their entirety, they will be limited to the duration of the applicable written warranty. This warranty gives you specific legal rights which may vary depending on local law. GOVERNING LAW This Limited Warranty shall be governed by the laws of the State of California, U.S.A., excluding its conflicts of laws principles and excluding the United Nations Convention on Contracts for the International Sale of Goods. 3Com Corporation, 5400 Bayfront Plaza, Santa Clara, CA 95052-8145 (408) 764-5000 FCC CLASS B STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1 This device may not cause harmful interference, and 2 This device must accept any interference received, including interference that may cause undesired operation. WARNING: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,” ICES-003.These limits are designed to provide reasonable protection against harmful interference in a residential installatiom This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from the one which the receiver is connected to. Consult the dealer or an experienced radio/TV technician for help.

****** Page 75 ****** The user may find the following booklet prepared by the Federal Communications Commission helpful: The Intefference Handbook This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20402. Stock No. 004-000-00345-4. NOTE: In order to maintain compliance with the limits of a Class B digital device, 3Com requires that you use quality interface cables when connecting to this device. Changes or modifications not expressly approved by 3Com could void the user’s authority to operate this equipment. Refer to the manual for specifications on cabling types. FCC DECLARATION OF CONFORMITY We declare under our sole responsibility that the Model: 3C905B-TX 3C905B-TX-NM Description: Fast EtherLink XL PCl 10/1 OOBASE-TX Network Interface Card to which this declaration relates, is in conformity with the following standards or other normative documents: ANSI C63.4-1992 Methods of Measurement • Federal Communications Commission 47 CFR Part 15, subpart B 15.107 (e) Class B Conducted Limits 15.109 (g) Class B Radiated Emissions Limits 3Com Corporation, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145 3COM END USER SOFTWARE LICENSE AGREEMENT IMPORTANT: Read Before using This Product YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE USING THIS PRODUCT. IT CONTAINS SOFTWARE, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION (“3COM”) TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTH BELOW. IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT, DO NOT USE THE SOFTWARE. USING ANY PART OF THE SOFTWARE INDICATES THAT YOU ACCEPT THESE TERMS. LICENSE: 3Com grants you a nonexclusive license to use the accompanying software program(s) (the “Software”) subject to the terms and restrictions set forth in this License Agreement. You are not permitted to lease, rent, distribute or sublicense the Software or to use the Software in a time-sharing arrangement or in any other unauthorized manner. Further, no license is granted to you in the human readable code of the Software (source code). Except as provided below, this License Agreement does not grant you any rights to patents, copyrights, trade secrets, trademarks, or any other rights in respect to the Software. The Software is licensed to be used on any workstation or any network server owned by or leased to you, provided that the Software is used only in connection with a 3Com adapter. You may reproduce and provide one (1) copy of the Software and supporting documentation for each such workstation or network server on which the Software is used as permitted hereunder. Otherwise, the Software and supporting documentation may be copied only as essential for backup or archive purposes in support of your use of the Software as permitted hereunder. You must reproduce and include all copyright notices and any other proprietary rights notices appearing on the Software and the supporting documentation on any copies that you make. NO ASSIGNMENT; NO REVERSE ENGINEERING: You may not transfer or assign the Software and/or this License Agreement to another party without the prior written consent of 3Com. If such consent is given and you transfer or assign the Software and/or this License Agreement, then you must at the same time either transfer any copies of the Software as well as the supporting documentation to the same party or destroy any such materials not transferred. Except as set forth above, you may not transfer or assign the Software or your rights under this License Agreement. Modification, reverse engineering, reverse compiling, or disassembly of the Software is expressly prohibited. However, if you are a European Community (“EC”) resident, information necessary to achieve interoperability of the Software with other programs within the meaning of the EC Directive on the Legal Protection of Computer Programs is available to you from 3Com upon written request.

****** Page 76 ****** EXPORT RESTRICTIONS: You agree that you will not export or re-export the Software or accompanying documentation (or any copies thereof) or any products utilizing the Software or such documentation in violation of any applicable laws or regulations of the United States or the country in which you obtained them. TRADE SECRETS; TITLE: You acknowledge and agree that the structure, sequence and organization of the Software are the valuable trade secrets of 3Com and its suppliers. You agree to hold such trade secrets in confidence. You further acknowledge and agree that ownership of, and title to, the Software and all subsequent copies thereof regardless of the form or media are held by 3Com and its suppliers. UNITED STATES GOVERNMENT LEGEND: All technical data and Software are commercial in nature and developed solely at private expense. The Software is delivered as Commercial Computer Software as defined in DFARS 252.227-7014 (June 1995) or as a commercial item as defined in FAR 2.101 (a) and as such is provided with only such rights as are provided in this License Agreement, which is 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov. 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation delivered to you under this License Agreement. TERM AND TERMINATION: This license will expire fifty (50) years from the date that you first use the Software, if it is not earlier terminated. You may terminate it at any time by destroying the Software and documentation together with all copies and merged portions in any form. It will also terminate immediately if you fail to comply with any term or condition of this License Agreement. Upon such termination you agree to destroy the Software and documentation, together with all copies and merged portions in any form. GOVERNING LAW: This License Agreement shall be governed by the laws of the State of California as such laws are applied to agreements entered into and to be performed entirely within California between California residents and by the laws of the United States. You agree that the United Nations Convention on Contracts for the International Sale of Goods (1980) is hereby excluded in its entirety from application to this License Agreement. LIMITED WARRANTY; LIMITATION OF LIABILITY: All warranties and limitations of liability applicable to the Software are as stated on the Limited Warranty Card or in the product manual accompanying the Software. Such warranties and limitations of liability are incorporated herein in their entirety by this reference. SEVERABILITY: In the event any provision of this License Agreement is found to be invalid, illegal or unenforceable, the validity, legality and enforceability of any of the remaining provisions shall not in any way be affected or impaired and a valid, legal and enforceable provision of similar intent and economic impact shall be substituted therefor. ENTIRE AGREEMENT: This License Agreement sets forth the entire understanding and agreement between you and 3Com, supersedes all prior agreements, whether written or oral, with respect to the Software, and may be amended only in a writing signed by both parties. 3Com is a registered trademark of 3Com Corporation. 3Com Corporation, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145. (408) 764-5000

****** Page 77 ****** NOTES

****** Page 78 ****** NOTES


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3COM 3C905B-TX (01) PDF MANUAL

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