PictureTel Network Card III ISA User Manual

®
EtherLink III ISA  
Network Interface Card  
User Guide  
A member of the 3Com EtherLink III family  
of network interface cards  
http://www.3com.com/  
Part No. 09-1310-000  
Published January 1998  
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Lifetime Limited  
Warranty  
3Coms EtherLink®, Fast EtherLink, TokenLink®,  
TokenLink Velocity, ATMLinkPCI, and FDDILink™  
network interface cards have a Lifetime Limited  
Warranty. For further details, please see 3Coms  
Limited Warranty statement in this guide.  
To ensure the very best 3Com service and  
support, take the time to complete the product  
registration card.  
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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.  
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3Com Asia Ltd., Marketing Department  
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CONTENTS  
ABOUT THIS GUIDE  
How to Use This Guide  
1
Conventions  
2
1 NETWORK INTERFACE CARD INSTALLATION  
Network Interface Card Overview 1-1  
Before You Begin 1-2  
Installing the NIC 1-3  
Connecting to the Network 1-5  
Link LED 1-7  
2 SETUP FOR CUSTOM INSTALLATION  
Selecting the Type of Installation 2-1  
Express Installation 2-1  
Custom Installation 2-2  
Multiple NIC Installations 2-2  
Windows 95 Setup 2-2  
Performing the Preinstallation Procedure 2-4  
Configuring the NIC in a Plug and Play PC 2-5  
Disabling Plug and Play on the NIC 2-7  
Configuring the NIC 2-8  
Windows NT Setup 2-10  
3 3COM INSTALLATION WIZARD  
Custom Installation 3-1  
Configuring the NIC 3-2  
To Accept Configuration Settings 3-2  
To Modify Configuration Settings 3-3  
Testing the NIC and the Network Connection 3-3  
Installing TCP/IP Under Windows 95 3-5  
To Not Install TCP/IP 3-5  
To Install TCP/IP 3-5  
iii  
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Configuring TCP/IP Under Windows 95 3-6  
To Obtain an IP Address Automatically 3-6  
To Specify an IP Address Manually 3-7  
Configuring DNS 3-8  
To Obtain a DNS Address Automatically 3-8  
To Specify a DNS Address Manually 3-9  
Identifying Your PC on the Network 3-10  
Configuring DynamicAccess Software 3-11  
To Not Configure DynamicAccess Software 3-11  
To Configure DynamicAccess Software 3-12  
Repeating a Previous Installation 3-13  
To Not Save Installation Settings 3-13  
To Save Installation Settings 3-14  
Completing the Installation and Configuration 3-16  
Windows 95 3-16  
Windows NT 3-17  
4 SOFTWARE INSTALLATION AND CONFIGURATION  
UNDER WINDOWS 3.X  
Installing NetWare Drivers for DOS, Windows 3.1, and  
Windows for Workgroups 4-1  
AutoLink Requirements 4-1  
Running the AutoLink Install Program 4-1  
Obtaining NetWare Loadable Modules 4-3  
Installing Other Supported Network Drivers 4-3  
Removing NIC Software 4-4  
Configuring the NIC 4-4  
Reconfiguring the NIC 4-5  
Changing NIC Configuration from ISA to EISA 4-6  
Changing NIC Configuration from EISA to ISA 4-7  
Changing Configuration Settings 4-8  
5 WINDOWS 95 AND WINDOWS NT  
TROUBLESHOOTING  
Checklist 5-1  
Resolving Hardware Conflicts in Windows 95  
and Windows NT 5-1  
iv  
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Changing the I/O Base Address or the Interrupt  
Request Level 5-2  
Windows 95 5-2  
Windows NT 5-3  
Installing Multiple NICs in a Windows NT PC 5-4  
Installing the First NIC 5-4  
Installing Subsequent NICs 5-5  
Windows 95 and Windows NT Troubleshooting 5-6  
Diagnostic Testing Under Windows 95 and Windows NT 5-6  
Starting the 3Com NIC Diagnostics Program 5-6  
Running Tests 5-8  
NIC Test 5-8  
Network Test 5-8  
Uninstalling the NIC 5-8  
Reinstalling NIC Software 5-9  
Performing Automated Installations 5-10  
Installing from the Hard Disk 5-10  
Installing from a Diskette 5-10  
6 WINDOWS 3.X TROUBLESHOOTING  
Checklist 6-1  
Diagnostic Testing Under Windows 3.x 6-1  
Starting the DOS Configuration and Diagnostic  
Program 6-2  
Running the Group 1 Tests 6-2  
Running the Group 2 Test 6-3  
Assembling a Loopback Plug 6-3  
Starting the Group 2 Test 6-4  
Running the Group 3 Test 6-4  
Setting Up an Echo Server 6-4  
Starting the Group 3 Test 6-5  
Getting Help If a Test Fails 6-6  
A SPECIFICATIONS  
NIC Specifications A-1  
RJ-45 Connector Pin Assignments A-2  
AUI Connector Pin Assignments A-2  
Cable Specifications A-3  
v
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B ADVANCED PACE FEATURES  
Additional Ranges Tab B-1  
Advanced Options Tab B-2  
FIFO Packet Threshold B-3  
Concurrent UDP Streams B-3  
Low-Priority Ratio B-3  
Natural Packet Interval B-3  
Disable Switch Packet Prioritization B-4  
Disable Receive Packet Buffering B-4  
C CROSSOVER CABLE TROUBLESHOOTING TIPS  
Troubleshooting Hubs with Crossover Cable C-1  
D TECHNICAL SUPPORT  
Online Technical Services D-1  
World Wide Web Site D-1  
3Com Bulletin Board Service D-1  
Access by Analog Modem D-2  
Access by Digital Modem D-2  
3ComFacts Automated Fax Service D-2  
3ComForum on CompuServe Online Service D-3  
Support from Your Network Supplier D-3  
Support from 3Com D-4  
Returning Products for Repair D-6  
INDEX  
3COM CORPORATION LIMITED WARRANTY  
FCC CLASS B STATEMENT  
FCC DECLARATION OF CONFORMITY  
3COM END USER SOFTWARE LICENSE AGREEMENT  
vi  
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FIGURES  
1-1 3C509B Network Interface Cards 1-1  
1-2 Installing the 3C509B NIC 1-4  
1-3 Connecting to the RJ-45 Port on the 3C509B NIC 1-5  
1-4 Connecting to the BNC Port on the 3C509B-TPC NIC 1-6  
1-5 Connecting to the AUI Port on the 3C509B-COMBO NIC 1-6  
2-1 Windows 95 NIC Installation Overview 2-3  
2-2 Preinstallation Software Screen 2-4  
2-3 non–Plug and Play BIOS Detected Screen 2-5  
2-4 Update Device Driver Wizard Screen 2-5  
2-5 Updated Driver Found Screen 2-6  
2-6 DOS PNPDSABL Screen 2-7  
2-7 Select Device Screen 2-8  
2-8 Install from Disk Screen 2-9  
2-9 Select Device Screen 2-9  
2-10 I/O Range Assigned to the NIC Screen 2-10  
2-11 Windows NT NIC Installation Overview 2-11  
3-1 Selecting Custom Installation Screen 3-1  
3-2 NIC Configuration Settings Screen 3-2  
3-3 NIC Test Screen 3-3  
3-4 Network Connection Test Screen 3-4  
3-5 TCP/IP Inquiry Screen 3-5  
3-6 TCP/IP Configuration Screen 3-6  
3-7 Specify an IP Address Screen 3-7  
3-8 DNS Configuration Screen 3-8  
3-9 Specifying a DNS Address Screen 3-9  
3-10 Network Identification Screen 3-10  
3-11 DynamicAccess Software Inquiry Screen 3-11  
3-12 PACE Support Setup Screen 3-12  
3-13 Repeat Last Installation Screen 3-13  
3-14 Confirm Installation Settings Screen 3-14  
vii  
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3-15 Save Installation Settings Screen 3-14  
3-16 Installation Complete Screen 3-15  
3-17 System Settings Change Dialog Box 3-16  
3-18 Adapters Tab of the Network Screen 3-17  
3-19 Microsoft TCP/IP Properties Screen 3-18  
4-1 Main Menu of the DOS Installation Program 4-2  
4-2 NIC Configuration Screen 4-5  
6-1 Assembling a Loopback Plug 6-3  
A-1 RJ-45 Connector Pin Assignments A-2  
B-1 PACE Additional Ranges Tab B-1  
B-2 PACE Advanced Options Tab B-2  
C-1 Straight-Through and Crossover Cable Pinouts C-2  
viii  
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TABLES  
1
2
Notice Icons  
2
Text Conventions  
2
1-1 Parameters for 3C509B NIC Models 1-2  
1-2 NIC LED Interpretation 1-7  
4-1 NetWare NLMs 4-3  
4-2 Network Driver Text File Names 4-3  
4-3 Option Settings 4-8  
5-1 3Com NIC Diagnostics Program Tab Screens 5-7  
6-1 Diagnostic Programs 6-5  
A-1 AUI Connector Pin Assignments A-2  
A-2 Supported Cable Types A-3  
ix  
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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® EtherLink® III ISA network interface card (called the  
3C509B NIC in this guide).  
This guide is for a variety of users from network administrators,  
who are familiar with computers and understand Ethernet  
networks, to small office and home users.  
If the information in the README.TXT file differs from the  
information in this guide, follow the information in the  
README.TXT file on EtherDisk diskette 2. If a release note is  
included, the release note contains the latest information.  
How to Use This Guide  
This table shows where to find specific information in this guide.  
If you are looking for...  
Turn to...  
Chapter 1  
Chapter 2  
Chapter 3  
Chapter 4  
Chapter 5  
Chapter 6  
Appendix A  
Appendix B  
Appendix C  
Appendix D  
NIC version and installation information  
Windows 95 and Windows NT NIC installation setup information  
3Com Installation Wizard  
Windows 3.x procedures for installing and configuring the NIC  
Windows 95 and Windows NT troubleshooting  
Windows 3.x troubleshooting  
Specifications, connector pin assignments, and cable specifications  
PACE advanced features  
Crossover cable tips  
Technical support  
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2
ABOUT THIS GUIDE  
Conventions  
Table 1 and Table 2 list conventions that are used throughout  
this guide.  
Table 1 Notice Icons  
Icon  
Notice Type  
Alerts you to...  
Information note  
Important features or instructions  
Caution  
Warning  
Risk of personal safety, system damage, or loss of data  
Risk of severe personal injury  
Table 2 Text Conventions  
Convention  
Description  
Screen displays  
This typeface represents information as it appears on the screen.  
The words “enter”  
and “type”  
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.”  
Keyboard key names  
If you must press two or more keys simultaneously, the key names  
are linked with a plus sign (+). Example:  
Press Ctrl+Alt+Del.  
Menu commands  
and buttons  
Menu commands or button names appear in italics. Example:  
From the Help menu, select Contents.  
Words in italicized type  
Italics emphasize a point or denote new terms at the place where  
they are defined in the text.  
Words in bold-face type Bold text denotes key features.  
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NETWORK INTERFACE CARD  
INSTALLATION  
1
provides procedures for installing the NIC, and describes the  
correct network cable to use for connecting each version of the  
NIC to an Ethernet network.  
Network Interface Card Overview  
The four versions of the 3Com® EtherLink® III ISA 3C509B NICs are  
shown in Figure 1-1. These NICs connect your ISA or EISA PC to an  
Ethernet network using up to three different types of media.  
LED  
RJ-45 port  
AUI port  
LED  
LED  
LED  
BNC port  
3C509B-TPO  
3C509B-TPC  
3C509B-TP  
3C509B-COMBO  
Figure 1-1 3C509B Network Interface Cards  
Each NIC has a light-emitting diode (LED) called the link LED,  
which indicates whether there is an active connection between  
the NIC and the hub. See “Link LED” later in this chapter for a  
more complete description of this function.  
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1-2  
CHAPTER 1: NETWORK INTERFACE CARD INSTALLATION  
Table 1-1 shows the cable, connector, transceiver, and maximum  
network segments for the various 3C509B NIC models.  
Table 1-1 Parameters for 3C509B NIC Models  
Maximum  
Network  
Segment  
NIC Model  
Cable  
Connector  
Transceiver  
3C509B-TPO  
Category 3, 4,  
or 5 unshielded  
twisted-pair  
RJ-45  
On-board  
328 ft/100 m  
(10BASE-T)  
3C509B-TPC  
3C509B-TP  
Category 3, 4,  
or 5 unshielded  
twisted-pair  
RJ-45  
On-board  
328 ft/100 m  
(10BASE-T)  
10BASE2 thin  
Ethernet coaxial  
BNC  
On-board  
On-board  
605 ft/185 m  
328 ft/100 m  
Category 3, 4,  
or 5 unshielded  
twisted-pair  
RJ-45  
(10BASE-T)  
10BASE5 thick  
Ethernet coaxial  
15-pin AUI  
RJ-45  
External  
1640 ft/500 m  
328 ft/100 m  
3C509B-COMBO Category 3, 4,  
or 5 unshielded  
On-board  
twisted-pair  
(10BASE-T)  
10BASE5 thick  
Ethernet coaxial  
15-pin AUI  
BNC  
External  
1640 ft/500 m  
605 ft/185 m  
10BASE2 thin  
On-board  
Ethernet coaxial  
Before You Begin  
Before you install the 3C509B NIC, verify that you have all of the  
components. If any of these items are damaged or missing,  
contact your shipper or network supplier.  
EtherLink III ISA NIC (3C509B)  
EtherLink III ISA Network Interface Card User Guide  
(this guide)  
EtherLink III ISA Network Interface Card Quick Guide  
3Com 3C509B EtherDisk diskettes 1 and 2  
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Installing the NIC  
1-3  
You also need to know the following about your network  
environment:  
The kind of network cabling that is used to connect to the  
network at your site. You must use the same kind of network  
cable, and the NIC that you install in your PC must have a port  
that matches the connector on the network cable that  
you use.  
Your network protocol (IPX, IP, NetBEUI, or TCP/IP).  
The next step is to install the NIC in the PC.  
If your PC is running Windows 95, before you install the NIC  
in your PC, be sure to perform the preinstallation procedure for  
Windows 95. See “Performing the Preinstallation Procedure” in  
Chapter 2.  
Installing the NIC  
The following instructions apply to installing the 3C509B NIC  
in most PCs. If the instructions are not appropriate for your PC,  
refer to the documentation that accompanied your PC. You must  
have one ISA or EISA slot available in your PC in which to install  
the NIC.  
CAUTION: Each NIC is packed in antistatic packaging to protect it  
during shipment. Before handling the NIC, touch the bare metal  
case of your PC. While you are handling the NIC, wear a wrist  
strap attached to the PC chassis.  
If your PC is running Windows 95, do not install the NIC in your  
PC until you have run the Windows 95 preinstallation procedure  
described in Chapter 2. If you do not run the preinstallation  
procedure, Windows will install the default driver and the 3Com  
NIC Diagnostics program will not be installed on your hard disk.  
Remove all jewelry from your hands and wrists and use only  
insulated or nonconducting tools.  
Follow these steps to install the NIC in your PC:  
1
2
Turn off power to the PC, and remove the power cord from  
the PC.  
Unscrew the cover screws and remove the cover.  
On some PCs, it may be necessary to remove all cables before the  
cover can be removed.  
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1-4  
CHAPTER 1: NETWORK INTERFACE CARD INSTALLATION  
3
Locate an available ISA or EISA slot and remove the  
screw from the corresponding backplate (Figure 1-2).  
Save the screw.  
Some PCs have both ISA and PCI slots. Make sure that you install  
the EtherLink III ISA NIC in either an ISA or an EISA slot. See  
Figure 1-2.  
PCI slots, the shortest of the three types of slots, are white. The  
longer ISA slots are black. EISA slots, the longest, are brown.  
Backplate screw  
3C509B NIC  
ISA or EISA slot  
Figure 1-2 Installing the 3C509B NIC  
4
5
Remove and discard the backplate.  
Ensure that the shape and length of the edge connector on  
the NIC match the slot that you intend to use (Figure 1-2).  
6
Carefully insert the NIC into the slot; press firmly with  
steady pressure to ensure that the NIC is fully seated in  
the slot.  
When the NIC is correctly inserted in the slot, the NIC backplate is  
flush with the PC backplate.  
7
8
9
Secure the NIC with the backplate screw.  
Replace the PC cover. Reinsert and tighten the cover screws.  
Reconnect all power and peripheral cables.  
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Connecting to the Network  
1-5  
Connecting to the Network  
This section describes how to connect the 3C509B NIC to an  
Ethernet network using an RJ-45, BNC, or AUI port. Each 3C509B  
NIC provides different network ports, as shown in Figure 1-1.  
When you first install the NIC and power on the PC, the LED on  
the NIC backplate lights, but the link is not active. To enable the  
link, you must load the network drivers. See “Link LED” in this  
chapter for more information.  
Follow these steps to connect the RJ-45 port on the 3C509B-TPO,  
TPC, TP, and COMBO NICs to the network:  
1
Plug the RJ-45 connector on the twisted-pair network cable  
into the RJ-45 port on the NIC backplate. See Figure 1-3.  
RJ-45 port  
RJ-45  
connector  
Figure 1-3 Connecting to the RJ-45 Port on the 3C509B NIC  
2
Connect the other end of the network cable to an active  
network port.  
Go to “Link LED” later in this chapter.  
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1-6  
CHAPTER 1: NETWORK INTERFACE CARD INSTALLATION  
Follow these steps to connect the BNC port on the 3C509B-TPC  
and COMBO NICs to the network:  
1
Connect the BNC connector on the thin Ethernet coaxial  
cable to the BNC port on the NIC. See Figure 1-4.  
BNC port  
Figure 1-4 Connecting to the BNC Port on the 3C509B-TPC NIC  
2
1
Connect the other end of the network cable to another PC  
or a 50-ohm terminator.  
Go to “Link LED” later in this chapter.  
Follow these steps to connect the AUI port (Figure 1-5) on the  
3C509B-TP and COMBO NICs to the network:  
Locate the 15-pin AUI port on the NIC and move the slide  
latch down to the open position.  
AUI port  
AUI connector  
Figure 1-5 Connecting to the AUI Port on the 3C509B-COMBO NIC  
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Link LED  
1-7  
2
Connect the thick Ethernet coaxial cable to the AUI port on  
the NIC.  
This connector will only attach one way. Orient the AUI connector  
to match the AUI port on the NIC.  
3
4
Move the slide latch up to the closed position to lock the  
AUI connector in place.  
Connect the other end of the network cable to an  
external transceiver.  
Go to the next section.  
Link LED  
whether an active 10BASE-T network connection exists between  
the NIC and the hub. The LED flashes if the polarity of the  
network cable is reversed.  
When you first install the NIC and power on the computer, the  
LED lights, but the network link is inactive. To enable the network  
link, you must install the network driver.  
Table 1-2 describes the LED states.  
Table 1-2 NIC LED Interpretation  
LED State  
Meaning  
On  
If drivers are installed, the connection is active.  
If drivers are not installed, this state indicates that the NIC is  
receiving power.  
Off  
If the LED is not lit, something is preventing the connection  
between the NIC and the hub.  
Blinking  
If the LED is blinking, the cable polarity is reversed. Try a  
different network cable or contact your MIS representative.  
If the NIC LED indicates a problem, check the following:  
1
2
Ensure that your network hub and the network cable  
connecting to your EtherLink III NIC comply with the  
10BASE-T specifications.  
Ensure that the hub is powered on.  
You have completed the hardware installation. To install software:  
For PCs running Windows 95 or Windows NT, go to  
Chapter 2.  
For PCs running DOS, Windows 3.x, or Windows for  
Workgroups, go to Chapter 4.  
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SETUP FOR CUSTOM  
INSTALLATION  
2
This chapter describes how to set up your Windows 95 or  
Windows NT PC so that you can use the 3Com Installation Wizard  
to install and configure a 3C509B NIC.  
If you are running Windows 95, you must first determine if a  
Plug and Play BIOS is installed in your PC. See “Performing the  
Preinstallation Procedure” later in this chapter.  
If you are running Windows 95 with a Plug and Play PC, you can  
also perform an Express installation. See the 3Com EtherLink III ISA  
Quick Guide for Express installation procedures.  
If your PC is not running Windows 95 or Windows NT, go to  
Chapter 4.  
Selecting the Type of Installation  
The two ways to install and configure the NIC using the 3Com  
Installation Wizard are Express installation and Custom installation.  
Express Installation  
Express installation, the installation method that most typical  
Windows 95 users choose, is fast and easy and requires only  
minimal user intervention. Refer to the EtherLink III ISA Network  
Interface Card Quick Guide that came with the 3C509B NIC for  
information on how to perform the Express installation.  
Express installation loads the latest drivers from the EtherDisk  
diskette, automatically tests the NIC and your network, and  
dynamically binds TCP/IP to the NIC.  
If you do not have a DHCP server on your network, or if you have  
a static TCP/IP address, you must use the Custom installation  
option instead to install and configure the NIC.  
Express installation is not available to Windows NT users.  
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2-2  
CHAPTER 2: SETUP FOR CUSTOM INSTALLATION  
Custom Installation  
Custom installation is for knowledgeable network users who  
need to use different configuration settings or change test  
sequences for automated installations. This option is for network  
administrators, MIS departments, and value-added resellers (VARs)  
who need to automate the installation process. Custom installation  
also enables you to save the configuration settings and test  
options that you select during the installation for use in  
future installations.  
Custom installation loads the latest drivers from the EtherDisk  
diskette, automatically tests the NIC and your network, and  
configures TCP/IP (dynamic or static address). The Custom option  
also allows you to change configuration settings, disable tests,  
and save installation settings for future installations.  
If you are installing the NIC in a Windows 95 PC that does not  
have a Plug and Play BIOS installed, you must install the NIC using  
the Custom installation option.  
Multiple NIC Installations  
For Windows 95—Install and configure each NIC individually  
according to the appropriate procedures (Plug and Play or  
non–Plug and Play). See Chapter 1, Chapter 2, and Chapter 3.  
For Windows NT—Follow the procedure “Installing Multiple  
NICs in a Windows NT PC” in Chapter 5.  
Windows 95 Setup  
This section describes how to set up your Windows 95  
environment to install and configure the 3C509B NIC using  
the 3Com Installation Wizard Custom installation option. This  
section includes procedures for PCs with or without a Plug and  
Play BIOS.  
Figure 2-1 provides a graphical overview of the steps required for  
installing and configuring the 3C509B NIC under Windows 95.  
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Windows 95 Setup  
2-3  
Windows 95  
User guide  
Chapter 2  
Run preinstallation  
program  
Install the NIC  
in your PC  
User guide  
Chapter 1  
Disable  
Plug and Play  
on the NIC  
Plug and Play  
BIOS  
installed?  
No  
User guide  
Chapter 2  
Yes  
Run  
Add New Hardware  
Wizard  
User guide  
Chapter 2  
Windows 95  
detects the NIC  
Install NIC  
software and  
configure the NIC  
User guide  
Chapter 3  
3Com Installation Wizard  
User guide  
Chapter 2  
Select the type  
of installation  
Quick guide  
Express installation  
User guide  
Chapter 3  
Custom installation  
Figure 2-1 Windows 95 NIC Installation Overview  
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2-4  
CHAPTER 2: SETUP FOR CUSTOM INSTALLATION  
Performing the Preinstallation Procedure  
Preinstallation is important for proper setup of your Windows 95  
system environment. You must perform this procedure to ensure  
that the latest NIC driver and the 3Com NIC Diagnostics (a  
Windows-based program) can be successfully installed.  
Follow these steps to perform the preinstallation procedure:  
1
2
3
Click Start in the Windows 95 taskbar, and then click Run.  
Insert EtherDisk diskette 2 in drive A, and then enter:  
a:\preinstl  
4
Click OK.  
The Preinstallation Software screen appears, as shown in  
Figure 2-2, displaying a list of available IRQs.  
Record these IRQs. You need to verify that one of these available  
IRQs is assigned to the NIC when the NIC Configuration Settings  
screen (Figure 3-2) appears later in the 3Com Installation Wizard.  
Figure 2-2 Preinstallation Software Screen  
5
Click OK.  
If your PC supports the Windows 95 Plug and Play feature, the  
next step is to install the NIC in your PC (see Chapter 1). Then go  
to the next section to configure the NIC.  
If your PC does not support the Windows 95 Plug and Play  
feature, the screen shown in Figure 2-3 appears. Click OK and  
go to the section “Disabling Plug and Play on the NIC” later in  
this chapter.  
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Windows 95 Setup  
2-5  
Figure 2-3 non–Plug and Play BIOS Detected Screen  
To install the NIC using the 3Com Installation Wizard Express  
installation option, see the EtherLink III ISA Network Interface  
Card Quick Guide that shipped with the 3C509B NIC. To set up  
the NIC for installation using the 3Com Installation Wizard Custom  
installation option, go to the next section.  
Configuring the NIC in a Plug and Play PC  
This section describes how to set up your system environment  
when installing the NIC in a Windows 95 PC that has a  
Plug and Play BIOS installed.  
Follow these steps to configure the NIC:  
1
Turn the power on and boot Windows 95.  
The New Hardware Found screen appears. Then the Update  
Device Driver Wizard screen is displayed, as shown in Figure 2-4.  
Figure 2-4 Update Device Driver Wizard Screen  
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2-6  
CHAPTER 2: SETUP FOR CUSTOM INSTALLATION  
2
3
Insert EtherDisk diskette 1 in drive A.  
Click Next.  
Windows 95 displays the Update Device Driver Wizard again, this  
time confirming that it has found the updated NIC driver. See  
Figure 2-5.  
Figure 2-5 Updated Driver Found Screen  
4
5
6
7
Click Finish.  
The Insert Disk dialog box appears and prompts you for EtherDisk  
diskette 1.  
Click OK.  
The Copying Files dialog box appears, prompting you for the  
location of files on EtherDisk diskette 1.  
If it is not already displayed in the Copy files from entry  
box, type:  
a:\  
Click OK.  
Windows 95 copies the required files to your hard disk and builds  
the driver information database. The Insert Disk dialog box then  
appears, prompting you for the disk labeled:  
3Com NIC Windows 95 Installation Media  
8
9
Click OK.  
If it is not already displayed in the Copy files from entry  
box, type:  
a:\  
10 Click OK.  
The 3Com Installation Wizard starts. Go to Chapter 3.  
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Windows 95 Setup  
2-7  
Disabling Plug and Play on the NIC  
If your Windows 95 PC does not support Plug and Play, you  
must disable Plug and Play on the NIC before you can install  
the NIC software.  
Follow these steps to disable Plug and Play on the NIC:  
1
After installing the NIC in the PC, turn the power on and  
boot Windows 95.  
2
3
4
Insert EtherDisk diskette 2 in drive A.  
Click Start in the Windows 95 taskbar, and then click Run.  
Enter:  
a:\pnpdsabl.bat  
The DOS PNPDSABL screen appears, as shown in Figure 2-6.  
Figure 2-6 DOS PNPDSABL Screen  
5
Click the X in the upper right corner of the screen to close  
the DOS screen and return to Windows 95.  
Plug and Play is disabled on the NIC.  
6
7
Remove the diskette from drive A.  
Shut down the PC and turn the power off, then on.  
The NIC is not detected when the PC reboots.  
The next step is to configure the NIC.  
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2-8  
CHAPTER 2: SETUP FOR CUSTOM INSTALLATION  
Configuring the NIC  
This section describes the procedure to install NIC software and  
configure the NIC when Plug and Play has been disabled on  
the NIC.  
Follow these steps to install the NIC software and configure  
the NIC:  
1
Double-click the My Computer icon, double-click the  
Control Panel icon, and then double-click the Add New  
Hardware icon.  
The Add New Hardware Wizard starts and displays the first screen.  
2
3
Click Next.  
You are prompted to let Windows 95 search for your  
new hardware.  
Select No, and then click Next.  
The Add New Hardware Wizard displays the Hardware Types  
list box.  
4
Select Network adapters and click Next.  
Windows 95 updates the driver database and then displays the  
Select Device screen, as shown in Figure 2-7.  
Figure 2-7 Select Device Screen  
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Windows 95 Setup  
2-9  
5
Insert EtherDisk diskette 1 in drive A and click Have Disk.  
The Install from Disk screen appears, as shown in Figure 2-8.  
Figure 2-8 Install from Disk Screen  
6
7
If it is not already displayed in the Copy manufacturer’s files  
from entry box, enter:  
a:\  
Click OK.  
The Select Device screen shown in Figure 2-9 appears, with  
3Com EtherLink III ISA (3C509/3C509b) in ISA mode selected.  
Figure 2-9 Select Device Screen  
8
Click OK.  
Windows 95 copies the required files and updates the driver  
database. The Add New Hardware Wizard displays a screen  
showing the I/O range assigned to the 3C509B NIC, as shown  
in Figure 2-10.  
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2-10  
CHAPTER 2: SETUP FOR CUSTOM INSTALLATION  
Figure 2-10 I/O Range Assigned to the NIC Screen  
9
Write down the I/O range setting displayed in the list box  
(or click Print, if you are connected to a printer), and then  
click Next.  
When you configure the NIC using the 3Com Installation Wizard,  
you must make sure that this setting matches the value displayed  
on the NIC Configuration Settings screen. See Figure 3-2.  
Windows 95 copies the required files to your hard disk. The  
3Com Installation Wizard starts.  
CAUTION: I/O base address 0x110 is reserved for system  
resources. If this address is assigned to a hardware device in  
your PC, contact your network administrator before continuing.  
The next step is to use the 3Com Installation Wizard to install NIC  
software and configure the NIC. Go to Chapter 3.  
Windows NT Setup  
This section describes how to set up your Windows NT 3.51 or  
4.0 system environment to install the 3C509B NIC using the  
3Com Installation Wizard Custom installation option.  
WARNING: If you are installing multiple 3C509B NICs in a  
Windows NT PC, you must follow the specific procedure provided  
in “Installing Multiple NICs in a Windows NT PC” in Chapter 5.  
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Windows NT Setup  
2-11  
Figure 2-11 provides a graphical overview of the steps required for  
installing and configuring the 3C509B NIC under Windows NT.  
.
Windows NT  
User guide  
Chapter 1  
Install the NIC  
in your PC  
Is Microsoft  
Networking  
installed?  
No  
Install  
Microsoft Networking  
Yes  
Install NIC  
software and  
configure the NIC  
User guide  
Chapter 3  
3Com Installation Wizard  
User guide  
Chapter 3  
Custom installation  
User guide  
Chapter 3  
Configure TCP/IP  
Figure 2-11 Windows NT NIC Installation Overview  
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2-12  
CHAPTER 2: SETUP FOR CUSTOM INSTALLATION  
Follow these steps to install and configure the 3C509B NIC under  
Windows NT:  
1
2
3
Install the NIC in your PC. See Chapter 1.  
Boot Windows NT.  
Double-click the My Computer Icon, double-click the Control  
Panel icon, and then double-click the Network icon.  
The Network screen appears.  
4
Click the Adapters tab, click Add, and then click Have Disk.  
The Insert Disk screen appears.  
5
6
Insert EtherDisk diskette 1 in drive A.  
Ensure that the path to drive A appears in the entry box,  
and then click OK.  
The Select OEM Option screen appears.  
7
8
If not already selected, select 3Com EtherLink III (3c509) ISA  
Adapter and click OK.  
The 3Com EtherLink III (3c509) ISA Adapter Bus Location  
screen appears.  
Ensure that Bus Type: ISA and Bus Number: 0 appear in their  
respective selection boxes, and then click OK.  
Windows NT Setup copies the required files to your hard disk. The  
3Com Installation Wizard starts.  
The next step is to use the 3Com Installation Wizard to install the  
NIC software and configure the 3C509B NIC. Go to Chapter 3.  
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3COM INSTALLATION WIZARD  
3
This chapter describes how to install and configure the  
3C509B NIC under Windows 95 or Windows NT using the  
3Com Installation Wizard Custom installation option.  
To install the NIC using the Express installation option, see the  
EtherLink III ISA Network Interface Card Quick Guide.  
Custom Installation  
In the last step of the Windows 95 setup procedure in Chapter2,  
clicking Next starts the 3Com Installation Wizard.  
In the last step of the Windows NT setup procedure in Chapter2,  
clicking OK starts the 3Com Installation Wizard.  
The first 3Com Installation Wizard screen is shown in Figure 3-1.  
Figure 3-1 Selecting Custom Installation Screen  
Follow these steps to perform a Custom installation:  
1
2
Select the Custom Installation radio button, shown  
in Figure 3-1.  
Click Next.  
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3-2  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Configuring the NIC  
The NIC Configuration Settings screen appears, as shown in  
Figure 3-2. The list box displays recommended configuration  
settings for the NIC. You can either accept the recommended  
settings or change one or more to suit your operating  
environment.  
Figure 3-2 NIC Configuration Settings Screen  
For Windows 95 non–Plug and Play PCs, make sure that the I/O  
Base Address value shown in the list box under Current Value is  
the same value that you wrote down in “Configuring the NIC” in  
Chapter 2. Also make sure that the Interrupt Request Level value is  
the Preinstallation Procedure” in Chapter 2.  
To Accept Configuration Settings  
Follow these steps to accept the recommended configuration  
settings:  
1
2
Click Next.  
Go to Testing the NIC and the Network Connection” later  
in this chapter.  
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Testing the NIC and the Network Connection  
3-3  
To Modify Configuration Settings  
Follow these steps to change configuration settings in a  
Windows 95 non–Plug and Play PC:  
1
2
Under Network Parameter, select I/O Base Address.  
In the Set Value selection box, click the scroll arrow to select  
the I/O range setting that you wrote down in “Conguring  
the NIC” in Chapter 2. See Figure 3-2.  
3
4
Under Network Parameter, select Interrupt Request Level.  
In the Set Value selection box, click the scroll arrow to select  
an interrupt request level that matches one of the available  
IRQs that you wrote down in “Performing the Preinstallation  
Procedure” in Chapter 2. See Figure 2-2.  
5
When you have finished changing the settings, click Next.  
The next step is to test the NIC and the network connection.  
Testing the NIC and the Network Connection  
It is recommended that you test the NIC and then the network  
to verify that each is functioning properly before you continue  
the installation.  
The NIC Test screen appears, as shown in Figure 3-3.  
Figure 3-3 NIC Test Screen  
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3-4  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Follow these steps to test the NIC:  
1
2
Click Perform NIC Test.  
If a test fails, a message indicates the error type. Click the Help  
button in the error message screen to obtain more information.  
Chapter 5 provides additional troubleshooting help.  
A message confirms that the NIC is functioning correctly.  
Click Next.  
The Network Connection Test screen appears, as shown in  
Figure 3-4.  
Figure 3-4 Network Connection Test Screen  
Follow these steps to test the network connection:  
1
2
Click Perform Network Connection Test to verify that the  
network is functioning correctly.  
While the test is running, a progress bar indicates test progress.  
If a test fails, a message indicates the error type. Click the Help  
button in the error message screen to obtain more information.  
Chapter 5 provides additional troubleshooting help.  
A message confirms that the network is functioning correctly.  
Click Next.  
For Windows NT—Go to “Configuring DynamicAccess  
Software” later in this chapter.  
For Windows 95—The TCP/IP Inquiry screen appears, as  
shown in Figure 3-5.  
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Installing TCP/IP Under Windows 95  
3-5  
Installing TCP/IP Under Windows 95  
Installing and configuring TCP/IP is optional. If you want to access  
the Internet, you must install and configure TCP/IP.  
Figure 3-5 TCP/IP Inquiry Screen  
To Not Install TCP/IP  
Follow these steps if you do not want to install TCP/IP:  
1
2
Select the No radio button.  
Click Next.  
Go to the section “Identifying Your PC on the Network” later in  
this chapter.  
To Install TCP/IP  
Follow these steps to install and configure TCP/IP:  
1
2
Select the Yes radio button.  
Click Next.  
The TCP/IP Configuration screen appears, as shown in Figure 3-6.  
The next step is to configure TCP/IP.  
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3-6  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Figure 3-6 TCP/IP Configuration Screen  
Configuring TCP/IP Under Windows 95  
There are two ways to assign an IP address. You can obtain an  
IP address automatically or specify an IP address manually. Your  
network administrator will specify which method to use, and if  
required, provide an IP address for you to use.  
To Obtain an IP Address Automatically  
Follow these steps to obtain an IP address automatically:  
1
Select the Obtain an IP address automatically radio button.  
This option dynamically assigns a new IP address each time you  
connect to the network.  
2
Click Test IP Connection to test the DHCP server connection.  
While the test is running, a progress bar indicates test progress.  
If a test fails, a message indicates the error type. Click the Help  
button in the error message screen to obtain more information.  
Chapter 5 provides additional troubleshooting help.  
A message confirms that the connection to the DHCP server  
is functioning.  
3
Click Next.  
Go to “Configuring DNS” later in this chapter.  
.
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Configuring TCP/IP Under Windows 95  
3-7  
To Specify an IP Address Manually  
Follow these steps to specify an IP address manually:  
1
2
Select the Specify an IP address manually radio button.  
Click Next.  
The Specify an IP Address screen appears, as shown in Figure 3-7.  
.
Figure 3-7 Specify an IP Address Screen  
3
4
5
Enter the IP address.  
Enter the subnet mask.  
Enter the new gateway address.  
At least one gateway must appear in the Gateways list box before  
you can advance to the next screen.  
6
7
Click Add New Gateway to add the new gateway  
configuration.  
The gateway is listed in the Gateways list box.  
Click Test IP Connection to verify that the gateway  
connection is functioning.  
While the test is running, a progress bar indicates test progress.  
If a test fails, a message indicates the error type. Click the Help  
button in the error message screen to obtain more information.  
Chapter 5 provides additional troubleshooting help.  
A message confirms that the IP address is valid and functioning.  
8
Click Next.  
The next step is to configure DNS.  
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3-8  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Configuring DNS  
Dynamic Name Server (DNS) converts a World Wide Web URL to  
an actual IP address. You can configure DNS either automatically  
or manually depending on how your network is set up.  
When you click Next in the previous section, the DNS Configuration  
screen appears, as shown in Figure 3-8.  
Figure 3-8 DNS Configuration Screen  
To Obtain a DNS Address Automatically  
Follow these steps to obtain a DNS address automatically:  
1
Select the Obtain a DNS address automatically radio button.  
This choice gives you a new DNS address each time you log on to  
the network.  
2
Click Test DNS Connection to verify that the connection to  
the DNS server is functioning.  
If a test fails, a message indicates the error type. Click the Help  
button in the error message screen to obtain more information.  
Chapter 5 provides additional troubleshooting help.  
A message confirms that the DNS connection is functioning.  
3
Click Next.  
The next step is to identify your PC on the network. Go to  
“Identifying Your PC on the Network” later in this chapter.  
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Configuring DNS  
3-9  
To Specify a DNS Address Manually  
Follow these steps to specify a DNS address manually:  
1
Select the Specify DNS manually radio button if you are  
using a permanent DNS address. See Figure 3-9.  
Figure 3-9 Specifying a DNS Address Screen  
If DNS has been previously configured on your PC, the fields on  
this screen may already be filled in.  
If DNS has not been previously configured on your PC, these fields  
are blank and you must fill them in to enable DNS.  
2
3
Enter the host and domain data in their respective fields.  
To configure a new server, enter the new server address,  
and then click Add New Server.  
The new server appears in the Servers list box.  
4
Click Test DNS Connection to verify that the connection to  
the DNS server is functioning.  
While the test is running, a progress bar indicates test progress.  
If a test fails, a message indicates the error type. Click the Help  
button in the error message screen to obtain more information.  
Chapter 5 provides additional troubleshooting help.  
A message confirms that the DNS connection is functioning.  
5
Click Next.  
The next step is to identify your PC on the network.  
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3-10  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Identifying Your PC on the Network  
When you click Next in the previous section, the Network  
Identification screen appears, as shown in Figure 3-10. This  
screen enables you to identify your PC on the network. Contact  
your network administrator if you do not have information to  
enter in these fields.  
Figure 3-10 Network Identification Screen  
Follow these steps to enter field data:  
1
2
Type the name of your computer.  
There are many PCs and other devices on a network—each one  
must be uniquely identified on the network. This name identifies  
your PC on the network. The name can have up to 15 characters.  
Spaces are not allowed; however, you can use hyphens.  
Type your workgroup name.  
This name identifies the group to which your PC belongs to and  
is likely to communicate with. This group will include most of  
the network resources that you use. This name can have up  
to 15 characters. See your network administrator for more  
information.  
3
Click Next.  
The next step is to configure DynamicAccess™ software.  
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Configuring DynamicAccess Software  
3-11  
Configuring DynamicAccess Software  
The DynamicAccess feature set optimizes network performance.  
DynamicAccess software includes PACE Interactive Access  
technology, dRMON (distributed RMON) support, Efficient  
Multicast Control, and PACE real-time and multimedia  
application support.  
PACE 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.  
When you click Next in the previous section, the DynamicAccess  
Software Inquiry screen appears, as shown in Figure 3-11.  
Figure 3-11 DynamicAccess Software Inquiry Screen  
This screen enables you to identify applications running on your  
PC that you wish to support using PACE software. Configuring  
DynamicAccess software is optional.  
To Not Configure DynamicAccess Software  
Follow these steps if you do not want to configure DynamicAccess  
software:  
1
2
Click Next.  
Go to “Repeating a Previous Installation” later in  
this chapter.  
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3-12  
CHAPTER 3: 3COM INSTALLATION WIZARD  
To Configure DynamicAccess Software  
Follow these steps if you want to configure DynamicAccess  
software:  
1
Double-click the 3Com PACE Config icon shown in  
Figure 3-11.  
The PACE Support Setup screen appears, as shown in Figure 3-12.  
Figure 3-12 PACE Support Setup Screen  
2
3
Select the Enable PACE Support radio button.  
Select the check box next to each application that you want  
to configure.  
For advanced PACE features and configuration options, see  
Appendix B.  
4
5
Click OK to return to the DynamicAccess Software  
Inquiry screen.  
Click Next.  
Go to the next section.  
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Repeating a Previous Installation  
3-13  
Repeating a Previous Installation  
You can save the configuration settings and test options that you  
selected during this installation for use in future installations.  
Saving settings is optional.  
When you click Next in the previous section, the Repeat Last  
Installation screen appears, as shown in Figure 3-13.  
Figure 3-13 Repeat Last Installation Screen  
To Not Save Installation Settings  
Follow these steps if you do not want to save these configuration  
settings:  
1
2
Select the No radio button, and then click Next.  
The Installation Complete screen appears, as shown in  
Figure 3-16.  
Click Finish.  
Go to “Windows 95” if you are running Windows 95 on your PC.  
Go to “Windows NT” if you are running Windows NT on your PC.  
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3-14  
CHAPTER 3: 3COM INSTALLATION WIZARD  
To Save Installation Settings  
Follow these steps to save these configuration settings for  
future installations:  
1
Select the Yes radio button, and then click Next.  
The Confirm Installation Settings screen appears, as shown in  
Figure 3-14.  
Figure 3-14 Confirm Installation Settings Screen  
2
Select the check boxes for tests that you want to run in  
future installations, and then click Next.  
The Save Installation Settings screen appears, as shown in  
Figure 3-15.  
Figure 3-15 Save Installation Settings Screen  
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Repeating a Previous Installation  
3-15  
3
Enter the path for the EtherDisk diskette that you are using.  
This installation diskette is first copied to a temporary directory,  
and then that file is copied to the drive that you indicate. If you  
are saving to a diskette, insert a blank, formatted diskette in  
drive A. Upon completion, remove the diskette from the drive.  
You can use this diskette to perform future installations.  
Otherwise, enter the name of the drive (for example, C:\) where  
you want to save the installation settings.  
4
Click Next.  
The Installation Complete screen appears, as shown in Figure 3-16.  
Figure 3-16 Installation Complete Screen  
5
Click Finish.  
Go to “Windows 95” if you are running Windows 95 on your PC.  
Go to “Windows NT” if you are running Windows NT on your PC.  
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3-16  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Completing the Installation and Configuration  
Procedures for completing the installation and configuration differ  
for Windows 95 and Windows NT.  
Windows 95  
This section describes how to complete the NIC installation and  
configuration under Windows 95 after you close the 3Com  
Installation Wizard.  
The Insert Disk dialog box appears, prompting you for the  
Windows 95 CD.  
1
2
click OK.  
In the Copy files from box, enter the path to your CD-ROM  
drive, and then click OK.  
A final Microsoft Add New Hardware Wizard screen may appear.  
If this screen appears, click Finish. Otherwise, continue.  
The System Settings Change dialog box appears, prompting you  
to restart. See Figure 3-17.  
Figure 3-17 System Settings Change Dialog Box  
3
Click Yes.  
You have successfully installed and configured the NIC under  
Windows 95.  
The 3Com NIC Diagnostics program icon appears in the taskbar  
tray. To start the program, double-click the tray icon. To disable  
the tray icon, right-click the icon and select Disable Tray Icon. See  
Chapter 5 for more information about the 3Com tray icon.  
Verify that all existing installed hardware devices are still working.  
Typical devices to check include a sound card, CD-ROM drive,  
analog modem, LPT port to a printer, and game ports. If any  
devices are not working, go to Chapter 5 or the Windows  
Troubleshooting Help system.  
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Completing the Installation and Configuration  
3-17  
Windows NT  
This section describes how to complete the NIC installation  
and configuration under Windows NT after you close the  
3Com Installation Wizard.  
Clicking Finish on the Installation Complete screen closes  
the 3Com Installation Wizard. Windows NT then displays the  
Adapters tab of the Network screen, as shown in Figure 3-18.  
.
Figure 3-18 Adapters Tab of the Network Screen  
The next step is to install and configure TCP/IP in Windows NT  
either manually or automatically.  
1
Click Close.  
The Microsoft TCP/IP Properties screen appears, as shown in  
Figure 3-19.  
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3-18  
CHAPTER 3: 3COM INSTALLATION WIZARD  
Figure 3-19 Microsoft TCP/IP Properties Screen  
2
Choose a method to configure TCP/IP.  
There are two ways to assign an IP address. You can obtain an  
IP address automatically or specify an IP address manually. Your  
network administrator will specify which method to use, and if  
required, provide an IP address for you to use.  
To obtain an IP address automatically—Follow these steps  
to install and configure TCP/IP automatically:  
a Select the Obtain an IP address from a DHCP server  
radio button.  
b Click OK.  
You are prompted to restart Windows NT.  
c
Click OK.  
TCP/IP is installed and configured.  
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Completing the Installation and Configuration  
3-19  
To specify an IP address manually—Follow these steps to  
install and configure TCP/IP manually:  
a Select the Specify an IP address radio button.  
b Enter the IP address, subnet mask address, and default  
gateway address in their respective entry fields.  
c
Click OK.  
You are prompted to restart Windows NT.  
d Click OK.  
TCP/IP is installed and configured.  
Verify that all existing installed hardware devices are still working.  
Typical devices to check include a sound card, CD-ROM drive,  
analog modem, LPT port to a printer, and game ports. If any  
devices are not working, go to Chapter 5 or the Windows  
Troubleshooting Help system.  
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SOFTWARE INSTALLATION  
AND CONFIGURATION  
UNDER WINDOWS 3.X  
4
This chapter describes how to install NIC software and configure  
the NIC under DOS, Windows 3.1, or Windows for Workgroups.  
If your PC is running Windows 95 or Windows NT, go to  
Chapter 2 and Chapter 3.  
Installing NetWare Drivers for DOS, Windows 3.1, and  
Windows for Workgroups  
This section describes how to use the AutoLink program  
to install client and driver software for DOS environments  
and Novell NetWare 3.1x or 4.1x under Windows 3.1 and  
Windows for Workgroups.  
When your system administrator configures a 3Install account  
on your server, the AutoLink program logs on to the server  
and updates the client software. AutoLink creates a new  
AUTOEXEC.BAT file and saves the old file as AUTOEXEC.3CM.  
AutoLink also creates a new CONFIG.SYS file and saves the old  
file as CONFIG.3CM.  
AutoLink Requirements  
The AutoLink program includes an installation program. To use  
the AutoLink program, your PC should have only one 3C509B NIC  
installed and a minimum of 1 MB of available hard disk space.  
Running the AutoLink Install Program  
Follow these steps to run the installation program to configure  
the NIC:  
1
Install the NIC and connect it to the network, as described  
in Chapter 1.  
2
3
4
Reboot to DOS.  
Insert EtherDisk diskette 2 in drive A.  
Run the installation program. At the DOS prompt, enter:  
a:install  
The main menu is displayed, as shown in Figure 4-1.  
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4-2  
CHAPTER 4: SOFTWARE INSTALLATION AND CONFIGURATION UNDER WINDOWS 3.X  
EtherDisk for the EtherLink III Adapter Family v5.0  
ESC=Cancel  
F1=Help  
MAIN  
MENU  
Installation Overview (ReadMe) ...  
Microsoft Windows Installation  
Auto Install and Config for NetWare (Autolink)  
Driver Installation and Update ...  
Configuration and Diagnostic Program  
Release Notes  
This option displays a directory of help on relevant topics  
(C) Copyright 1993, 3Com Corporation. All Rights Reserved.  
[ENTER]=Execute Function  
[
↑↓]=Scroll  
[F1]=Help [ESC]=<Cancel>  
Figure 4-1 Main Menu of the DOS Installation Program  
5
Select Auto Install and Config for NetWare (AutoLink) and  
press Enter.  
The AutoLink program menu is displayed.  
6
7
Select DOS, Windows 3.1x, or Windows for Workgroups 3.11  
and follow the prompts.  
When the auto installation process is finished, remove  
EtherDisk diskette 2 from drive A and reboot the PC.  
If you are running Windows 3.1x, after you connect to the  
NetWare server, run the WSINSTALL program for full Windows  
support. Contact your system administrator for the location of this  
NetWare utility.  
If problems occur only when using the AutoLink program, display  
or print the AUTOLINK.LOG file to see a list of all events occurring  
during the AutoLink installation and configuration process.  
To display the file, Enter:  
type autolink.log | more  
To print the file, Enter:  
print autolink.log  
To install the network drivers for Windows 3.1x, Windows for  
Workgroups, or DOS in a non-NetWare environment, see the  
appropriate text files in the HELP directory on EtherDisk diskette 2.  
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Installing Other Supported Network Drivers  
4-3  
Obtaining NetWare Loadable Modules  
You can obtain current NetWare Loadable Modules (NLMs) for the  
NetWare servers listed in Table 4-1 from the Novell Web site,  
www.support.novell.com.  
Table 4-1 NetWare NLMs  
NetWare Server  
NLM Name  
ETHERTSM.NLM  
NBI31X.NLM  
MSM31X.NLM  
ETHERTSM.NLM  
NetWare 3.12  
NetWare 4.11, 4.1  
MSM.NLM  
The 3C509B NIC no longer supports NetWare 3.11 and  
4.0x servers.  
Installing Other Supported Network Drivers  
Table 4-2 provides the text file names and driver names for other  
drivers supported by the 3C509B NIC. Text files for all supported  
network operating systems are included in the HELP directory  
on EtherDisk diskette 2.  
Table 4-2 Network Driver Text File Names  
Network  
Operating System  
Text File Name  
BANYAN.TXT  
LANMAN.TXT  
LANSRV.TXT  
Network Driver Name  
ELNK3.DOS  
Banyan VINES  
Microsoft LAN Manager  
IBM LAN Server (DOS)  
IBM LAN Server (OS/2)  
Artisoft LANtastic  
ELNK3.DOS  
ELNK3.DOS  
LANSRV.TXT  
ELNK3.OS2  
LANTASTK.TXT  
PATHWORK.TXT  
PATHWORK.TXT  
ELNK3.DOS  
DEC PATHWORKS  
DEC PATHWORKS  
ELNK3.DOS  
3C5X9.COM (for NetWare  
ODI-compatible)  
Windows for Workgroups  
(NetWare)  
WFWNETWR.TXT  
3C5X9.COM  
Windows for Workgroups (NDIS 2) WFWNDIS2.TXT  
Windows for Workgroups (NDIS 3) WFWNDIS3.TXT  
(continued)  
ELNK3.DOS  
ELNK3.386 with ELNK3.DOS  
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4-4  
CHAPTER 4: SOFTWARE INSTALLATION AND CONFIGURATION UNDER WINDOWS 3.X  
Table 4-2 Network Driver Text File Names (continued)  
Network  
Operating System  
Text File Name  
Network Driver Name  
Windows 95 NDIS 2 16-bit  
network driver  
W95NDIS2.TXT  
ELNK3.DOS  
NetWare Client 32  
NetWare 3.12 Server  
NetWare 4 Server  
NetWare OS/2  
CLIENT32.TXT  
NETWARE.411  
NETWARE.411  
NWOS2ODI.TXT  
PACKET.TXT  
3C5X9.LAN  
3C5X9.LAN  
3C5X9.LAN  
3C5X9.SYS  
3C5X9PD.COM  
Packet driver NOSs  
Removing NIC Software  
EtherDisk diskette 2 includes an uninstallation program to remove  
the 3C509B NIC software.  
To run the uninstallation program, at the DOS prompt, Enter:  
un3c509.exe  
The NIC software is removed from your PC.  
Configuring the NIC  
This section describes how to configure the 3C509B NIC after you  
install it in your PC. If only one 3C509B NIC is installed and you  
are running Novell NetWare, use the AutoLink program to  
configure the NIC and load the appropriate driver, as described  
earlier in this chapter.  
To configure the 3C509B NIC, follow these steps:  
1
Install the NIC (see Chapter 1) and the network driver  
(earlier in this chapter).  
2
3
4
Reboot to DOS.  
Insert EtherDisk diskette 2 in drive A.  
Run the installation program. Enter:  
a:install  
The main menu is displayed, as shown in Figure 4-1.  
5
6
Select Configuration and Diagnostic Program.  
If you have more than one NIC installed in the PC, select the NIC  
you want to configure. Tab to the Select button and press Enter.  
Select Configure NIC and press Enter.  
The NIC Configuration screen is displayed, as shown in Figure 4-2.  
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Reconfiguring the NIC  
4-5  
Configuration and Diagnostic Program Version 3.2  
Quit  
Install Test  
View  
Select  
F1=Help  
NIC Configuration  
EtherLink III NIC Configuration  
I/O Base Address  
300h  
Interrupt Request Level  
Boot PROM  
10  
N/A  
Transceiver Type  
On-board TP (RJ-45)  
Windows or OS/2 Client  
9600 Baud  
Network Driver Optimization  
Maximum Modem Speed  
Plug and Play Compatibility  
Full Duplex  
Enabled  
Disabled  
Auto Configure  
Modify  
File Options  
OK  
Cancel  
[ENTER]=<Auto Configure> Automatically Configures the NIC  
[Alt]+<Highlighted Key>=Execute Function  
[TAB]=Next Field [SHIFT+TAB]=Previous Field [F1]=Help [ESC]=Cancel  
Figure 4-2 NIC Configuration Screen  
7
Select Auto Configure and press Enter.  
The I/O base address, interrupt request level, and transceiver type  
are automatically configured to settings that do not conflict with  
other devices in your PC.  
To change settings, follow the steps in “Changing Configuration  
Settings” later in this chapter.  
If you encounter a problem with the Auto Configure option, press  
F1 for help.  
The OK button is selected when configuration is completed.  
8
Press Enter to accept the configuration parameters.  
The NIC is now configured.  
Reconfiguring the NIC  
EISA PCs come with an automatic configuration program that  
allocates resources to each installed hardware device in the PC.  
Changing an ISA NIC to EISA mode enables the NIC to be  
configured by the EISA configuration program for correct EISA  
PC settings.  
You can configure an ISA NIC for EISA mode only if the NIC is  
installed in an EISA slot.  
If you have configured an ISA NIC for an EISA PC, the PROTOCOL.INI  
file looks for the parameter SLOT=number rather than the I/O base  
address. The SLOT number is required only if you have multiple  
NICs installed.  
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4-6  
CHAPTER 4: SOFTWARE INSTALLATION AND CONFIGURATION UNDER WINDOWS 3.X  
The following procedures are general. If you require more detail,  
see the configuration documentation that accompanied your PC.  
Changing NIC Configuration from ISA to EISA  
Follow these steps to configure the 3C509B ISA NIC for an  
EISA PC:  
1
2
Run the installation program as described in the  
previous section.  
From the main menu of the installation program, select  
Configuration and Diagnostic Program.  
3
If you have more than one NIC installed, use the arrow keys  
to select the NIC you want to configure. Tab to the Select  
button and press Enter.  
A screen identifying the NIC is displayed with the Test menu bar  
item highlighted.  
4
5
Use the arrow keys to select Install. The Configure NIC  
option is selected. Press Enter.  
When the NIC Configuration dialog box is displayed, select  
Modify and press Enter.  
The I/O Base Address field is selected. An I/O Base Address dialog  
box appears.  
6
Use the arrow key to select EISA and press Enter.  
The I/O base address setting is changed.  
7
8
9
Select OK to save the new configuration setting and  
press Enter.  
Exit the program and remove EtherDisk diskette 2 from  
drive A.  
Insert the EISA configuration utility diskette provided with  
your PC in drive A.  
10 Turn the power off. Wait 10 seconds, and then turn the  
power on.  
11 Follow the instructions accompanying your EISA PC to run  
the EISA Configuration Program.  
When the program prompts you for .CFG files to copy, insert  
EtherDisk diskette 2, press Enter, and select the appropriate file:  
For the 3C509B-COMBO NIC, select: !TCM5094.CFG.  
For the 3C509B-TP NIC, select: !TCM5090.CFG.  
For the 3C509B-TPO NIC, select: !TCM5095.CFG.  
For the 3C509B-TPC NIC, select: !TCM5098.CFG.  
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Reconfiguring the NIC  
4-7  
If you are prompted for the wrong !TCM file:  
a Turn the power off and remove the NIC.  
b Clean the edge connectors on the NIC.  
c
Reinsert the NIC in the slot. Make sure the NIC is fully seated in  
the slot.  
d Turn the power on.  
Changing NIC Configuration from EISA to ISA  
To reconfigure the 3C509B NIC to ISA mode, the NIC must be  
installed in an EISA slot.  
Follow these steps to reconfigure the NIC for an ISA PC:  
1
2
Run the installation program as described in “Conguring  
the NIC” earlier in this chapter.  
From the main menu, select Configuration and  
Diagnostic Program.  
3
4
If necessary, use the arrow keys to select the NIC you want  
to configure. Tab to the Select button and press Enter.  
A screen identifying the NIC is displayed with theTest menu  
bar item already selected.  
5
6
Select Install and press Enter.  
When the NIC Configuration dialog box appears, select  
Modify and press Enter.  
The I/O Base Address field is selected. An I/O Base Address dialog  
box appears.  
7
8
Use the arrow keys to select ISA and press Enter.  
The I/O base address setting is changed.  
If your PC supports Plug and Play, the I/O Base Address, Interrupt  
Request Level, and Boot PROM parameters are set automatically.  
Either select the option setting in the NIC Configuration  
dialog box for parameters that you want to change, or  
accept the defaults.  
For more information about a setting, select the setting and press  
F1 (Help).  
9
Select OK to save the new configuration setting to the NIC  
and press Enter.  
10 Remove EtherDisk diskette 2 from drive A.  
11 Insert the PC configuration program diskette for your PC in  
drive A and reboot the PC.  
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4-8  
CHAPTER 4: SOFTWARE INSTALLATION AND CONFIGURATION UNDER WINDOWS 3.X  
Changing Configuration Settings  
Figure 4-2, the NIC Configuration screen, shows the current  
configuration settings for the installed NIC. You can change the  
default settings to:  
Disable Plug and Play  
Use a boot PROM  
Optimize driver performance for a specific operating system  
Optimize driver performance for operation on a server  
Change the type of network connector  
Table 4-3 lists each software option, the default setting for that  
option, and other available settings for that option. For more  
information about an option, select the option and press F1.  
.
Table 4-3 Option Settings  
Option  
Default Setting  
Supported Settings  
I/O Base Address  
300h  
200h, 210h, 220h, 230h, 240h, 250h, 260h,  
270h, 280h, 290h, 2A0h, 2B0h, 2C0h, 2D0h,  
2E0h, 2F0h, 300h, 310h, 320h, 330h, 340h,  
350h, 360h, 370h, 380h, 390h, 3A0h, 3B0h,  
3C0h, 3D0h, 3E0h, EISA, ISA  
Interrupt Request  
Level  
10  
3, 5, 7, 9, 10, 11, 12, 15  
Boot PROM  
Disabled. Does not  
apply for 3C509B-TPO.  
Disabled, 8K, 16K, 32K  
Transceiver Type  
Auto Select for all  
except 3C509B-TPO  
(on-board TP)  
On-board Coax (BNC), On-board TP (RJ-45),  
External (AUI/DIX), or Auto Select  
Network Driver  
Optimization  
Windows or OS/2  
Client  
DOS Client, Windows or OS/2 Client, Server  
Maximum Modem  
Speed (fastest  
9600 Baud  
No Modem, 1200, 2400, 9600, 19200,  
or 38400 Baud  
modem installed)  
Plug and Play  
Full-Duplex  
Enabled  
Disabled  
Enabled, Disabled  
Enabled, Disabled  
If you are using a PC that supports Plug and Play, the IRQ and  
I/O base address values are set by Plug and Play. You can set the  
boot PROM size to indicate the presence and size of a network  
boot PROM. To disable Plug and Play, go to “Disabling Plug and  
Play on the NIC” in Chapter 2.  
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Changing Configuration Settings  
4-9  
Follow these steps to change the configuration settings:  
1
2
Run the installation program described in “Conguring the  
NIC” earlier in this chapter.  
From the main menu (see Figure 4-1), select Configuration  
and Diagnostic Program.  
3
If multiple NICs are installed in the PC, use the arrow keys to  
select the NIC you want to configure. Press Tab to move to  
the Select button and press Enter.  
4
5
6
Press Tab to display the dialog box, and then select the  
option that you want to change. Press Enter.  
Use the arrow keys to scroll through the list of settings for  
that option. Select a setting and press Enter.  
Continue this procedure for other options. For more  
information on a specific option, select the option and  
press F1.  
7
To save the new settings, select OK and press Enter.  
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WINDOWS 95 AND  
WINDOWS NT  
TROUBLESHOOTING  
5
This chapter explains how to isolate and solve problems that  
may occur when you install the 3C509B NIC in a PC running  
Windows 95 or Windows NT.  
Checklist  
If you experience problems installing the NIC, first check  
these items:  
Check the NIC LED, as described in “Link LED” in Chapter 1.  
Check the connectors. Examine the cable for obvious signs  
of damage, wear, or crimping. Substitute a known  
working cable.  
Check whether the NIC software is correctly installed. Refer to  
Chapter 2 and Chapter 3.  
If the problem persists, go to related procedures in this chapter or  
refer to Appendix D, Technical Support.”  
Resolving Hardware Conflicts in Windows 95  
and Windows NT  
Follow these steps to resolve hardware resource conflicts (I/O base  
address or interrupt request level) if your PC is running either  
Windows 95 or Windows NT.  
1
From the Start menu, select Help.  
The Help window is displayed.  
2
3
4
Select the Contents tab, and then select Troubleshooting.  
Double-click If you have a hardware conflict.  
Click Start the Conflict Troubleshooter and follow  
the instructions.  
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5-2  
CHAPTER 5: WINDOWS 95 AND WINDOWS NT TROUBLESHOOTING  
Changing the I/O Base Address or the Interrupt Request Level  
If you discover that you have a resource conflict, you can change  
the I/O base address or the interrupt request level (IRQ). If you are  
adding new hardware to your system, you may need to change a  
resource assignment to avoid a conflict. The following procedures  
describe how to change resource allocations for your Windows 95  
or Windows NT PC.  
Windows 95  
Follow these steps to change the IRQ level assignment or the  
I/O base address in a Windows 95 PC:  
1
2
Double-click the My Computer icon, double-click the Control  
Panel icon, and then double-click the System icon.  
The System Properties window is displayed.  
Select the Device Manager tab, double-click Network  
adapters, and then double-click 3Com EtherLink III ISA  
Adapter.  
3
4
Select the Resources tab.  
Depending on the type of conflict that you have, select  
either Input/Output Range or Interrupt Request.  
5
Select the resource that you want to change (IRQ or  
Input/Output Range) and select Change Settings. (If these  
options appear dimmed, clear the Use automatic settings  
check box.)  
6
Scroll to a value that you know is available, and then  
click OK.  
You recorded available IRQ values during the Windows 95  
preinstallation procedure. See “Performing the Preinstallation  
Procedure” in Chapter 2.  
Before you reboot Windows 95, make sure that the value that you  
assign to a resource matches the value for the same resource in  
the NIC Configuration Settings screen (similar to that shown in  
Figure 3-2) in the 3Com NIC Diagnostics program.  
7
Close all open windows and restart the PC.  
The hardware conflict should be resolved. If not, consult your  
system administrator.  
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Changing the I/O Base Address or the Interrupt Request Level  
5-3  
Windows NT  
Follow these steps to change the IRQ level assignment or the  
I/O base address in a Windows NT PC:  
1
Double-click the 3Com icon in the taskbar tray.  
The General tab of the 3Com NIC Diagnostics program appears.  
2
3
Select the Configuration tab.  
Select the resource (I/O base address or interrupt request  
level) that you want to change in the Network Parameter  
column of the list box.  
The current value for that parameter appears in the Set Value  
entry box.  
4
5
Scroll to the value that you want to assign, and then  
click OK.  
If you change the I/O base address, before you restart  
Windows NT, make sure that the address that you assign  
matches the I/O base address on the Adapters tab screen.  
Follow these steps to verify the base addresses:  
a Double-click the My Computer icon, double-click the  
Control Panel icon, double-click the Network icon, and  
then select the Adapters tab.  
3Com EtherLink III (3C509) ISA Adapter is selected.  
b Click Properties.  
The I/O Port Address value appears in the scroll box on the  
3Com EtherLink III Adapter Card Setup screen.  
Ensure that this value matches the value set in step 4.  
To change this value, scroll to the matching value, and  
then click OK.  
c
Click OK to close the 3Com NIC Diagnostics program.  
6
Restart the PC.  
The hardware conflict should be resolved. If not, consult your  
system administrator.  
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5-4  
CHAPTER 5: WINDOWS 95 AND WINDOWS NT TROUBLESHOOTING  
Installing Multiple NICs in a Windows NT PC  
If you are installing multiple 3C509B NICs in a Windows NT 4.0  
PC, you cannot use the 3Com Installation Wizard to install the  
NICs. Use the following procedure to ensure that the NICs  
maintain separate resource assignments and are installed free  
of conflicts.  
You must use this procedure to install multiple 3C509B NICs.  
Failure to follow this procedure may lead to problems requiring  
you to reinstall your operating system.  
Installing the First NIC  
Follow these steps to install the first NIC when you are installing  
several NICs in a Windows NT PC:  
1
2
Double-click the My Computer icon, double-click the  
Control Panel icon, and then double-click the Network icon.  
The Network screen appears.  
Select the Adapters tab, and then click Add.  
The Select Network Adapter screen appears.  
3
4
5
Insert EtherDisk diskette 1 in drive A, and then click  
Have Disk.  
If not already displayed, type:  
a:\  
Click OK.  
The Select OEM Option screen appears.  
6
7
Ensure that 3Com EtherLink III 3C509B ISA is selected, and  
then click OK.  
The 3Com EtherLink III (3C509) ISA Adapter Bus screen appears.  
Click OK.  
Windows copies files. A message is displayed, warning you to use  
the Network screen to install multiple NICs.  
8
9
Click OK.  
The setup program copies files, and the Network screen reappears.  
Ensure that 3Com EtherLink III 3C509B ISA is selected, and  
then click Properties.  
The 3Com EtherLink III Adapter Card Setup dialog box appears,  
showing the assigned I/O port address value.  
10 Click OK, and then click OK again.  
The Network screen reappears.  
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Installing Multiple NICs in a Windows NT PC  
5-5  
11 Click Close.  
The Microsoft TCP/IP Properties screen appears.  
12 From the Adapter box, select 3Com EtherLink III 3C509 ISA  
Adapter, select a method of assigning the TCP/IP address,  
and then click OK.  
Messages are displayed, and you are prompted to reboot  
Windows NT.  
13 Click Yes.  
The NIC is installed and configured. The next step is to install the  
remaining NICs.  
Installing Subsequent NICs  
Follow this procedure to install the remaining NICs, one at a time,  
after you install and configure the first NIC:  
1
2
Perform steps 1 through 5 of the preceding procedure.  
The Windows setup program displays a message warning that a  
network card of this type is already installed.  
Click OK.  
The 3Com EtherLink III (3c509) ISA Adapter Bus screen appears.  
A message warns you to use the Network window to install  
multiple NICs.  
3
4
Click OK.  
Files are copied, and the Network screen reappears.  
Ensure that 3Com EtherLink III 3C509B ISA is selected, and  
then click Properties.  
The 3Com EtherLink III Adapter Card Setup dialog box appears,  
showing the assigned I/O port address value.  
5
Set the I/O port address to a nonconflicting value, and then  
click OK.  
The 3Com EtherLink III (3C509) ISA Adapter Bus screen  
appears again.  
6
7
Click OK.  
The setup program displays a warning message.  
Click OK, and then click Close.  
Files are copied, and then the Microsoft TCP/IP Properties  
screen appears.  
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5-6  
CHAPTER 5: WINDOWS 95 AND WINDOWS NT TROUBLESHOOTING  
8
From the Adapter box, select 3Com EtherLink III 3C509 ISA  
Adapter, select a method of assigning the TCP/IP address,  
and then click OK.  
Messages are displayed, and you are prompted to reboot.  
9
Click No, and then double-click the 3Com icon in the taskbar  
tray to start the 3Com NIC Diagnostics program.  
10 Select the Configuration tab and then verify that the I/O  
base address value is set to the value that you assigned  
earlier in this procedure.  
11 Click OK.  
The second NIC is installed and configured. Repeat this procedure  
for additional NICs to be installed.  
The I/O base address that you assign must match the I/O base  
address that you chose during the Custom installation. See  
“Configuring the NIC” in Chapter 3.  
12 When all NICs have been installed and configured, reboot  
Windows NT.  
Windows 95 and Windows NT Troubleshooting  
A comprehensive section on troubleshooting tips and techniques is  
provided in the online Help. To access the online Help, double-click  
the 3Com icon in the taskbar tray, go to the Support tab of the  
3Com NIC Diagnostics program, and click Release Notes.  
Diagnostic Testing Under Windows 95 and Windows NT  
The 3Com NIC Diagnostics program for Windows 95 and  
Windows NT is installed on your hard disk when you install  
the NIC software using the 3Com Installation Wizard.  
Starting the 3Com NIC Diagnostics Program  
You can start the program by double-clicking the 3Com taskbar tray  
icon or by selecting 3Com NIC Doctor in the Windows Explorer.  
For Windows 95 or Windows NT, follow these steps to run the  
3Com NIC Diagnostics program if the 3Com icon does not appear  
in your taskbar tray:  
1
2
3
Click Start in the taskbar, and then select Run.  
The Run dialog box appears.  
In the Open entry box, type:  
tcaudiag  
Click OK.  
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Diagnostic Testing Under Windows 95 and Windows NT  
5-7  
Table 5-1 shows the various tab screens that are available within  
the 3Com NIC Diagnostics program.  
.
Table 5-1 3Com NIC Diagnostics Program Tab Screens  
Tab  
Description  
General  
The General tab is the first screen to appear when you start the  
diagnostic program. This screen identifies the NICs installed in your  
PC and lets you get information that is specific to the selected NIC. This  
screen also provides check boxes for adding the diagnostic program  
icon to the taskbar tray of your PC and enabling the PC as an auto echo  
server system on the network.  
Click NIC Details to display a screen that lists detailed information about  
the selected NIC.  
Configuration  
Statistics  
The Configuration tab is used to change NIC configuration settings.  
The Statistics tab provides network traffic information that is updated  
by the NIC driver several times a minute.  
Diagnostics  
The Diagnostics tab provides access to the 3Com NIC Diagnostics  
program that lets you test the 3C509B NIC or change configuration  
settings.  
DynamicAccess  
The DynamicAccess tab is used to identify applications running on your  
PC that you wish to support using PACE software.  
Support  
The Support tab provides five buttons, each of which provides different  
support-related information or options.  
Diagnostics  
The Diagnostics button provides buttons for two tests that verify  
network and NIC functionality.  
Release Notes  
The Release Notes button provides information about known  
problems with specific vendor models.  
BBS Information  
The BBS Information button provides information for obtaining the  
latest 3Com software drivers.  
http://www.3com.com  
The http://www.3Com.com button takes you to the 3Com home  
page on the 3Com Web site.  
Problem Report  
The Problem Report button displays forms for submitting a trouble  
report to 3Com through e-mail.  
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5-8  
CHAPTER 5: WINDOWS 95 AND WINDOWS NT TROUBLESHOOTING  
Running Tests  
Two tests help you troubleshoot problems with the NIC: the NIC  
test and the network test.  
NIC Test  
Run the NIC test to determine that the NIC is working correctly.  
Be sure to run this test after you have verified that the network  
is functioning.  
Follow these steps to run the NIC test:  
1
2
Click Run NIC Test to begin the test.  
A progress bar appears. Results are displayed when the test  
is completed.  
Click OK.  
Network Test  
Run the Network test first if you are experiencing problems with  
the NIC. This tests the ability of the 3C509B NIC to transmit and  
receive data while connected to the network.  
Follow these steps to run the Network test:  
Click Run Network Test.  
The Network Connectivity Test screen is displayed.  
1
2
Click Start to begin the test.  
The PC on the network acting as the receiver in this test is  
identified on the right side of the screen. Results are displayed  
when the test is completed.  
To run the test continuously, select the Continuous check box.  
3
Click Close.  
Uninstalling the NIC  
If you have problems installing NIC software, allow the 3Com  
Installation Wizard to finish. The installation cannot be canceled  
once it is started.  
CAUTION: Before attempting to reinstall 3Com NIC installation  
software, you must first perform the uninstallation process.  
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Reinstalling NIC Software  
5-9  
Follow these steps to uninstall the NIC software in a PC running  
Windows 95 or Windows NT.  
1
2
Double-click the My Computer icon, double-click the Control  
Panel icon, and then double-click the Network icon.  
Select the 3C509B NIC.  
For Windows 95—On the Configuration tab, select the  
3Com EtherLink III ISA NIC.  
For Windows NT—On the Configuration tab, select Network  
adapters, and then select the 3Com EtherLink III ISA NIC.  
3
4
Click Remove.  
Click OK.  
The System Settings Change screen appears, prompting you to  
restart your PC.  
5
Click Yes.  
The NIC is no longer recognized by your operating system. All  
3C509B NIC software is removed from your PC.  
Reinstalling NIC Software  
When an event such as a hard disk crash occurs, the original  
configuration file written to the PCs hard disk may be lost or  
damaged. In this case, you must reinstall the NIC software for  
the NIC to be operational.  
To reinstall 3Com NIC software, follow the procedure specified  
in “Configuring the NIC in a Plug and Play PC” in Chapter 2.  
To reinstall 3Com NIC software using saved settings from a  
previous installation, go to the next section.  
If you are unable to reinstall the NIC or the NIC software  
successfully, refer to the appropriate troubleshooting sections  
in this chapter.  
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5-10  
CHAPTER 5: WINDOWS 95 AND WINDOWS NT TROUBLESHOOTING  
Performing Automated Installations  
This section describes how to install and configure 3C509B NICs  
when you want to perform multiple installations automatically or  
when you must reinstall the NIC software because it has been lost  
or corrupted.  
This procedure uses configuration settings saved from a  
previous installation.  
Installing from the Hard Disk  
Follow these steps if the saved configuration settings are in a file  
on your hard disk:  
1
Click Start in the taskbar, click Run, and then enter the path  
to the file that contains the saved configuration settings  
that you want to use to reinstall the NIC.  
2
3
Click OK.  
The 3Com Installation Wizard starts and displays the first screen.  
Click Install.  
3Com Installation Wizard screens appear sequentially, displaying  
the settings saved in the original installation.  
Installing from a Diskette  
Follow these steps if the saved configuration settings are in a file  
on a diskette:  
1
2
Insert the diskette containing the saved configuration  
settings in drive A.  
Click Start in the taskbar, click Run, and then enter:  
a:\  
3
4
Click OK.  
The 3Com Installation Wizard starts and displays the first screen.  
Click Install.  
3Com Installation Wizard screens appear sequentially, displaying  
the settings saved in the original installation.  
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WINDOWS 3.X  
TROUBLESHOOTING  
6
This chapter explains how to isolate and solve problems that may  
occur when you install the 3C509B NIC in a PC running DOS,  
Windows 3.1, or Windows for Workgroups.  
Checklist  
If you experience problems installing the NIC, first check  
these items:  
Check the NIC LED, as described in “Link LED” in Chapter 1.  
Check the connectors. Examine the cable for obvious signs  
of damage, wear, or crimping. Substitute a known  
working cable.  
Check whether the NIC software is correctly installed. See  
Chapter 4.  
Make sure the drivers installed are correct for the network  
operating system you are running (see “Installing Other  
Supported Network Drivers” in Chapter 4).  
If the problem persists, go to related procedures in this chapter or  
refer to Appendix D, Technical Support.”  
Diagnostic Testing Under Windows 3.x  
The Configuration and Diagnostic Program, onEtherDisk diskette 2,  
includes the diagnostic program used for DOS, Windows 3.x, and  
Windows for Workgroups. Run the diagnostic tests after installing  
the 3C509B NIC to check overall NIC operation and to isolate  
failures. After the NIC is installed, if the default tests do not isolate  
the problem, tailor the test parameters to accommodate your  
specific situation.  
Do not run diagnostic tests with device drivers or memory  
managers installed.  
Boot your PC to DOS to avoid installing device drivers or  
memory managers.  
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6-2  
CHAPTER 6: WINDOWS 3.X TROUBLESHOOTING  
Diagnostic tests are divided into three groups:  
The Group 1 tests check the physical components, connectors,  
and circuitry on the NIC.  
The Group 2 Network Loopback Test (for the 3C509B-TPC and  
COMBO NICs only) checks to see if the NIC can transmit and  
receive data through the coaxial transceiver.  
The Group 3 test (the Echo Exchange Test) tests to see if the  
NIC can transmit and receive data while on the network.  
If the NIC passes the group tests successfully, the NIC is  
functioning correctly. If the problem remains, look at cabling,  
software, driver configuration, and issues that can affect  
network functionality.  
Starting the DOS Configuration and Diagnostic Program  
Follow these steps to run the Configuration and  
Diagnostic Program:  
1
2
3
Boot to DOS. (Use a DOS diskette.)  
Insert EtherDisk diskette 2 in drive A.  
Run the installation program. Enter:  
a:install  
The main menu is displayed, as shown in Figure 4-1.  
4
5
Select Configuration and Diagnostic Program and  
press Enter.  
If multiple NICs are installed, each NIC is listed.  
Select the NIC you want to test and press Enter.  
You can also run the tests from the command line. At the system  
prompt, enter:  
3c5x9cfg run  
Running the Group 1 Tests  
Group 1 tests evaluate the physical components of the NIC.  
A Group 1 test failure can indicate a faulty NIC.  
For a description of each Group 1 test, press F1 to access Help.  
In the Help screen, tab to the Index button and press Enter.  
Use the arrow keys to move through the Index listings. Select  
Test Definitions and press Enter.  
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Diagnostic Testing Under Windows 3.x  
6-3  
Follow these steps to run the Group 1 tests:  
1
2
From the Test menu, select Run Tests and press Enter.  
The Run Tests dialog box appears with the Start button  
already selected.  
Press Enter to start the tests.  
Group 1 tests run 10 times (default setting) unless you specify  
otherwise. The test results are displayed in the Results column.  
Running the Group 2 Test  
The Group 2 test is the Network Loopback Test. It tests whether  
the 3C509B-COMBO and 3C509B-TPC NICs can transmit and  
receive data over thin Ethernet coaxial wire. This test requires  
either installing a loopback plug at the transceiver connection  
on the NIC or running the test on an idle network.  
A failure in this test usually indicates a cabling problem.  
CAUTION: Running the Group 2 test while connected to an active  
network can cause intermittent failures.  
Assembling a Loopback Plug  
If you do not have a loopback plug, you can order one from your  
authorized network supplier or you can make your own. You can  
purchase the terminators from your network supplier (3Com part  
number 3C535).  
To assemble the loopback plug, connect two 50-ohm network  
cable terminators to a T connector, as shown in Figure 6-1.  
T connector  
50Terminator  
50Terminator  
Figure 6-1 Assembling a Loopback Plug  
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6-4  
CHAPTER 6: WINDOWS 3.X TROUBLESHOOTING  
Follow these steps to run the Group 2 test on either the  
3C509B-TPC or 3C509B-COMBO NIC:  
1
2
Connect the loopback plug to the round BNC connector on  
the NIC.  
Start the Configuration and Diagnostic Program,  
as described in “Starting the DOS Configuration and  
Diagnostic Program” earlier in this chapter.  
3
4
5
6
From the Test menu, select Test Setup.  
Enable the Group 2 test. Select OK and press Enter.  
Go to the Run Tests dialog box to start the tests.  
After the test is completed:  
a Exit the Configuration and Diagnostic Program.  
b Remove the loopback plug.  
Running the Group 3 Test  
The Group 3 test is the Echo Exchange Test. It tests to see  
if the NIC can transmit and receive data while connected to  
the network. If you have successfully run the Group 1 and  
Group 2 tests, a failure in the Group 3 test usually indicates  
a cabling, hub, or network problem.  
CAUTION: Do not use an active network to run the Group 3 test.  
To run the Group 3 test on the network, you need a second PC to  
serve as an echo server, and it must have a 3Com NIC installed.  
The echo server receives packets from and echoes packets back to  
the NIC being tested. The diagnostic program provided with the  
NIC supports the 3C509B echo server diagnostic program.  
Setting Up an Echo Server  
Follow these steps to set up an echo server:  
1
2
Insert the EtherDisk diskette for the echo server NIC in  
drive A of the echo server.  
Start the diagnostic program on the echo server.  
The diagnostic program that you use is dictated by the NIC that is  
installed in the echo server. See Table 6-1. At the DOS prompt,  
enter the diagnostic program name for the associated NIC.  
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Diagnostic Testing Under Windows 3.x  
6-5  
Table 6-1 Diagnostic Programs  
Diagnostic  
Program Name  
NIC Installed  
in the Echo Server  
3C503.EXE  
EtherLink II® or II TP, EtherLink II/16 or II/16 TP  
EtherLink Plus®  
3C505.EXE  
3C507.EXE  
EtherLink 16 or EtherLink 16 TP  
3Com Red  
3C508CFG.EXE  
3C5X9CFG.EXE  
3C523.EXE  
EtherLink III family  
EtherLink/MC  
3C523TP.EXE  
3C527.EXE  
EtherLink/MC TP  
EtherLink/MC 32  
3C59XCFG.EXE  
EtherLink III EISA/PCI bus master family (including Fast  
EtherLink NIC running at 10 Mbps)  
3C90XCFG.EXE  
EtherLink XL and Fast EtherLink XL family of NICs  
running at 10 Mbps  
The main window of the diagnostic program is displayed.  
3
1
From the Test menu, select Echo Server, and then click Start.  
A message confirms that your PC is now set up as an echo server.  
Starting the Group 3 Test  
Follow these steps to run the Group 3 test on the 3C509B NIC:  
Start the Configuration and Diagnostic Program on the PC  
in which the NIC to be tested is installed.  
2
3
4
5
From the Test menu, select Test Setup.  
Enable the Group 3 test. Select OK and press Enter.  
Go to the Run Tests dialog box to start the tests.  
After the test is completed:  
a Exit the program on the echo server.  
b Exit the Configuration and Diagnostic Program.  
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6-6  
CHAPTER 6: WINDOWS 3.X TROUBLESHOOTING  
Getting Help If a Test Fails  
If a diagnostic test fails, the NIC may not be defective. The  
problem may be incorrect configuration settings, settings that  
conflict with other NICs, or improper installation.  
For more information about a failed diagnostic test:  
Select the test that failed in the Run Tests dialog box and  
press Enter.  
Select the Zoom button and press Enter.  
CAUTION: If you intend to remove the NIC from your PC, make  
sure to turn the power off before removing or reinserting the NIC.  
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SPECIFICATIONS  
A
This appendix lists specifications, pin assignments, and cable  
requirements for the 3C509B NIC.  
NIC Specifications  
Network Interface  
3C509B-TP  
3C509B-TPO  
Ethernet IEEE 802.3i 10BASE-T  
industry standard for a 10 Mbps  
baseband CSMA/CD local area  
network  
3C509B-COMBO  
3C509B-TPC  
IEEE 802.3i 10BASE-T and  
Ethernet IEEE 802.3 industry  
standard for a 10 Mbps CSMA/CD  
local area network  
Physical Dimensions  
Length:  
155.956 mm (6.14 in)  
100.330 mm (3.95 in)  
63.500 mm (2.50 in)  
77.470 mm (3.05 in)  
Height:  
TPO height:  
TPC height:  
Environmental Operating Range  
Operating temperature:  
Humidity:  
0˚ to 70 ˚C (32˚ to 158 ˚F)  
10 to 90% noncondensing  
Power Requirements  
Operating voltage:  
+5 V ± 5% @ 150 mA max  
+12 V ± 5% @ 0.5 A max  
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A-2  
APPENDIX A: SPECIFICATIONS  
RJ-45 Connector Pin Assignments  
Figure A-1 shows the RJ-45 connector pin assignments.  
8
7
6
5
4
RD-  
RD+ 3  
TD-  
2
TD+ 1  
8
Figure A-1 RJ-45 Connector Pin Assignments  
AUI Connector Pin Assignments  
Table A-1 lists the pin assignments for the AUI (attachment unit  
interface) connector.  
Table A-1 AUI Connector Pin Assignments  
Pin  
1
Function  
Pin  
9
Function  
Collision shield  
Collision +  
Transmit +  
Receive shield  
Receive +  
Collision –  
Transmit –  
Transmit shield  
Receive –  
2
10  
11  
12  
13  
14  
15  
3
4
5
+12 volts  
6
Power return  
Not used  
Voltage shield  
Not used  
7
8
Not used  
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Cable Specifications  
A-3  
Cable Specifications  
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 users authority to operate this  
equipment. Examples of supported cable types are shown in  
Table A-2.  
Table A-2 Supported Cable Types  
Type  
Example  
Unshielded  
twisted-pair  
100-ohm  
Category 3 LAN and high-speed data cable, for example,  
Anixter CM-00424BAG-3 or equivalent  
Category 4 extended distance LAN cable, for example,  
Anixter CM-00424BAG-4 or equivalent  
Thin coaxial  
Thick coaxial  
RG58 A/U or C/U (50 ohm ± 4)  
RG59 (50 ohm ± 2)  
The 10BASE-T cable you use for establishing a connection to the  
network should not be used for any other purpose. It must be  
dedicated to the link between the NIC and the network.  
For complete cabling details, refer to the IEEE 802.3 specification,  
section 8.4, “Coaxial Cables and Electrical Parameters.”  
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ADVANCED PACE FEATURES  
B
This appendix describes PACE advanced features and how to  
use them.  
Additional Ranges Tab  
The Additional Ranges tab of the 3Com PACE Support Setup screen  
allows you to add information for PACE-supported applications that  
are not listed in the list box on the Supported Applications tab. Refer  
to the user guide that came with the PACE-supported application  
for specific range and protocol information.  
The Additional Ranges tab is shown in Figure B-1.  
Figure B-1 PACE Additional Ranges Tab  
1
To add PACE ranges, place the cursor in the Range Start  
entry box and enter the application’s port or socket  
start range.  
2
3
Place the cursor in the Range End entry box and enter the  
application’s port or socket end range.  
In the Protocol selection box, click the down arrow to  
display a list of the installed protocols on your PC.  
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B-2  
APPENDIX B: ADVANCED PACE FEATURES  
4
Select the appropriate protocol for that application. Refer to  
the application’s user guide for the recommended protocol.  
Some applications support multiple protocols and use different  
port or socket ranges for each protocol. If the application in  
question uses multiple protocols, the range and protocol must  
match those on your PC.  
For example, if TCP/IP is the only protocol installed on your PC,  
do not enter the socket range for the IPX protocol. Use the range  
for TCP/IP.  
5
Click Add.  
The range appears in the list box.  
To remove a range, select the range in the list box and clickRemove.  
Do one of the following:  
To change advanced values, click Advanced Options to display  
the Advanced Options tab on the 3Com PACE Support Setup  
screen shown in Figure B-2.  
If you do not want to change advanced values, click OK to  
return to the 3Com PACE Support Setup screen.  
Advanced Options Tab  
The Advanced Options tab provides options that enable you to  
tailor how the network driver handles PACE traffic. Normally,  
these values do not need to be altered. Consult your network  
administrator before changing these values.  
Figure B-2 PACE Advanced Options Tab  
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Advanced Options Tab  
B-3  
The following advanced values can be modified to regulate PACE  
traffic on the network.  
FIFO Packet Threshold  
Controls the number of non-PACE packets that the network driver  
allows in the FIFO ahead of PACE packets. A smaller number  
decreases the time between PACE packets, but it can also  
decrease performance. The recommended setting is 3.  
Concurrent UDP Streams  
Controls the number of simultaneous multimedia UDP packet  
streams that the network driver can handle at any given time. For  
many applications, the number of UDP streams is the same as the  
number of connections.  
For example, a videoconference with three people at three  
different sites uses three concurrent UDP streams for the video  
data. The concurrent UDP streams setting must be a power of two  
(2, 4, 8, 16, etc.), but the optimal value varies depending on your  
PC and the application that you are running.  
Although a video server can support up to 32 connections, a client  
may only want to conference with four other people at a time.  
The recommended setting is 16.  
Low-Priority Ratio  
When PACE support is enabled, high-priority packets are always  
transmitted before low-priority packets. If a high-priority application  
sends out a sufficiently high number of high-priority packets,  
low-priority packets may not be sent.  
To prevent this problem, the driver uses a ratio setting to periodically  
send out a low-priority packet (if one is waiting to be sent). For  
example, if a value of 1000 is entered, one low-priority packet  
would be sent for every 1,000 high-priority packets. The  
recommended setting is 25.  
Natural Packet Interval  
To communicate packet priority to interconnect devices (repeaters,  
switches, and the like), the PACE driver slightly modifies the  
Ethernet packet. Because of this, connection problems may  
result when these modified packets are sent out for long periods  
of time during which no low-priority packets are sent. To get  
around this problem, the driver can be configured to periodically  
send out an unaltered, natural packet. The recommended setting  
is 180 seconds.  
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B-4  
APPENDIX B: ADVANCED PACE FEATURES  
Disable Switch Packet Prioritization  
This option disables modification of Ethernet packets used for  
prioritization of multimedia traffic within 3Com switch products.  
For example, disabling switch packet prioritization can sometimes  
alleviate the failure to make a multimedia connection between a  
PACE-enabled workstation and a non-PACE workstation.  
Disabling switch packet prioritization only affects the switch.  
It does not change the behavior of the PACE driver in any way.  
High-priority packets are transmitted ahead of most non-PACE  
packets on the workstation.  
Disable Receive Packet Buffering  
This option disables the receive packet buffer.  
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CROSSOVER CABLE  
TROUBLESHOOTING TIPS  
C
When you work with 10BASE-T cabling, concentrators, and NICs  
from different vendors, it is possible to connect everything but still  
have no communication between file servers and workstations.  
When there are several unknown variables, it is difficult to  
determine which component is failing. Start with the following  
procedure to narrow the range of possible causes:  
1
2
Determine whether your equipment complies with the  
10BASE-T standard.  
This is particularly important for data 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 (that is, the opposite side from  
where the wires enter the connector), pin 1 is identified on the  
right-hand side when the metal contacts are facing up.  
3
Make sure that the TD+ and TD– wires are twisted together,  
and that the RD+ and RD– wires are twisted together.  
Using wires from opposing pairs can cause signals to be lost.  
Troubleshooting Hubs with Crossover Cable  
A crossover cable can be used to isolate failures in these  
components when hub performance or impedance settings are  
in question.  
1
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.  
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C-2  
APPENDIX C: CROSSOVER CABLE TROUBLESHOOTING TIPS  
2
To make a crossover cable, connect TD+ to RD+ and  
TD– to RD–.  
The cable performs the crossover that is usually performed by the  
hub. Figure C-1 shows the pinouts for the crossover cable:  
.
12345678  
Straight-through  
10BASE-T cable  
Crossover  
10BASE-T cable  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TD+ 1  
1 TD+  
TD  
TD  
RD+  
2
3
4
5
6
7
8
2
3
4
5
RD+  
RD  
6 RD  
7
8
Figure C-1 Straight-Through and Crossover Cable Pinouts  
If the file server and client PC function together as a small  
network, then either the existing cabling or the hub is failing.  
With a correct crossover connection, the LED lights.  
With a straight-through connection, the LED does not light.  
With a polarity mismatch (that is, TD+ to RD– instead of TD+  
to RD+), the LED blinks.  
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TECHNICAL SUPPORT  
D
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 Corporations World Wide Web site as described below.  
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://www.3com.com/  
This service features the latest information about 3Com solutions  
and technologies, customer service and support, news about the  
company, NetAge® Magazine, 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.  
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D-2  
APPENDIX D: 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  
Data Rate  
Telephone Number  
61 2 9955 2073  
55 11 547 9666  
33 1 6986 6954  
4989 62732 188  
852 2537 5608  
39 2 27300680  
81 3 3345 7266  
52 5 520 7853  
86 10 684 92351  
65 534 5693  
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 14400 bps  
up to 28800 bps  
up to 28800 bps  
France  
Germany  
Hong Kong  
Italy (fee required)  
Japan  
Mexico  
P. R. of China  
Singapore  
Taiwan  
886 2 377 5840  
44 1442 438278  
1 408 980 8204  
U.K.  
U.S.A.  
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:  
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  
Hong Kong  
U.K.  
Telephone Number  
852 2537 5610  
44 1442 438279  
1 408 727 7021  
U.S.A.  
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Support from Your Network Supplier  
D-3  
Local access numbers are available within the following countries:  
Telephone  
Number  
Telephone  
Number  
Country  
Australia  
Belgium  
Denmark  
Finland  
Country  
1800 678 515  
0800 71279  
800 17319  
Netherlands  
New Zealand  
Norway  
06 0228049  
0800 446 398  
800 11062  
98 001 4444  
05 90 81 58  
0130 81 80 63  
800 933 486  
1678 99085  
1800 801 777  
Portugal  
0505 442 607  
956 0815  
France  
Russia (Moscow only)  
Singapore  
Spain  
Germany  
Hong Kong  
Italy  
800 6161 463  
900 964 445  
020 792954  
0800 626403  
Sweden  
Malaysia  
U.K.  
3ComForum on CompuServe Online Service  
3ComForum is a CompuServe-based service containing 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:  
1
2
3
Log on to CompuServe.  
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:  
Diagnostic error messages  
A list of system hardware and software, including  
revision levels  
Details about recent configuration changes, if applicable  
If you are unable to contact your network supplier, see the  
following section on how to contact 3Com.  
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D-4  
APPENDIX D: TECHNICAL SUPPORT  
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  
Telephone Number  
3Com Corporation  
P.O. Box 58145  
5400 Bayfront Plaza  
Santa Clara, California  
95052-8145  
800 NET 3Com or 1 408 764 5000  
408 764 5001 (fax)  
U.S.A.  
3Com Asia Limited  
Australia  
61 2 9937 5000 (Sydney)  
61 3 9866 8022 (Melbourne)  
8610 68492568 (Beijing)  
86 21 63740220 Ext 6115 (Shanghai)  
852 2501 1111  
China  
Hong Kong  
India  
91 11 644 3974  
Indonesia  
Japan  
6221 572 2088  
81 6 536 3303 (Osaka)  
81 3 3345 7251 (Tokyo)  
822 2 319 4711  
Korea  
Malaysia  
New Zealand  
Philippines  
Singapore  
Taiwan  
60 3 732 7910  
64 9 366 9138  
632 892 4476  
65 538 9368  
886 2 377 5850  
662 231 8151 4  
Thailand  
3Com Benelux B.V.  
Belgium  
Netherlands  
32 2 725 0202  
31 30 6029700  
3Com Canada  
Calgary  
Montreal  
Ottawa  
Toronto  
Vancouver  
403 265 3266  
514 683 3266  
613 566 7055  
416 498 3266  
604 434 3266  
3Com European HQ  
3Com France  
(continued)  
49 89 627320  
33 1 69 86 68 00  
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Support from 3Com  
D-5  
Regional Sales Office  
Telephone Number  
3Com GmbH  
Austria  
Czech Republic/Slovak  
Republic  
43 1 513 4323  
420 2 21845 800  
Germany  
(Central European HQ)  
Hungary  
49 30 34 98790 (Berlin)  
49 89 627320 (Munich)  
36 1 250 83 41  
Poland  
Switzerland  
48 22 6451351  
41 31 996 14 14  
3Com Ireland  
353 1 820 7077  
3Com Latin America  
U.S. Headquarters  
Northern Latin America  
Argentina  
Brazil  
Chile  
408 326 2093  
305 261 3266 (Miami, Florida)  
541 312 3266  
55 11 546 0869  
562 633 9242  
Colombia  
Mexico  
Peru  
571 629 4110  
52 5 520 7841/7847  
51 1 221 5399  
Venezuela  
58 2 953 8122  
3Com Mediterraneo  
Italy  
39 2 253011 (Milan)  
39 6 5279941 (Rome)  
34 1 383 17 00  
Spain  
3Com Middle East  
971 4 349049  
3Com Nordic AB  
Denmark  
Finland  
Norway  
Sweden  
45 39 27 85 00  
358 0 435 420 67  
47 22 18 40 03  
46 8 632 56 00  
3Com Russia  
007 095 258 09 40  
27 11 807 4397  
3Com Southern Africa  
3Com UK Ltd.  
44 131 220 8228 (Edinburgh)  
44 161 873 7717 (Manchester)  
44 162 889 7000 (Marlow)  
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D-6  
APPENDIX D: 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 senders expense.  
To obtain an RMA number, call or fax:  
Country  
Telephone Number  
Fax Number  
U.S.A. and Canada  
1 800 876 3266, option 408 764 7120  
2
Latin America  
1 408 326 2927  
44 1442 438125  
408 764 7120  
Europe, South Africa, and  
Middle East  
44 1442 435822  
Outside Europe, U.S.A.,  
and Canada  
1 408 326 2926  
1 408 764 7120  
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INDEX  
configuring 2-5, 4-1  
DNS 3-8  
Numbers  
3C509B NIC specifications 1-2  
3Com Bulletin Board Service  
(3ComBBS) D-1  
DynamicAccess software 3-11  
ISA to EISA 4-6  
NIC  
3Com Installation Wizard 3-1  
Custom installation 2-1  
Express installation 2-1  
3Com sales offices D-4  
3Com URL D-1  
3ComFacts D-2  
3ComForum D-3  
DOS 4-1, 4-4  
Windows 3.x 4-1  
Windows 95 2-5  
Windows for Workgroups 4-1, 4-4  
saving settings 3-15  
TCP/IP 3-6, 3-17  
connectors 1-2  
conventions  
notice icons, About This Guide  
text, About This Guide  
crossover cable C-1  
Custom installation 2-1  
Windows 95 2-4  
2
A
2
attachment unit interface (AUI) A-2  
AUI connector 1-2, 1-7, A-2  
AUI port, slide latch 1-7  
AutoLink program 4-1  
AUTOLINK.LOG file 4-2  
automated installation, creating file  
for 5-10  
Windows NT 2-10  
D
DHCP server connection, testing 3-6  
Diagnostic and Configuration  
Program, DOS 6-2  
diagnostic program,  
Windows 95/Windows NT  
Diagnostics tab 5-7  
B
BIOS, non–Plug and Play 2-7, 3-3  
BNC connector 1-2, 1-6  
bulletin board service D-1  
running tests 5-8  
diagnostic programs, list of 6-5  
diagnostic test failure 6-6  
diagnostic testing  
DOS 6-2  
Windows 95/NT 5-6  
Diagnostics tab 5-7  
C
cable specifications 1-2, A-3  
changing configuration settings with DOS  
diagnostic program 4-8  
changing I/O base address or IRQ 5-2  
CompuServe D-3  
disabling Plug and Play 2-7  
DNS  
configuration and diagnostics program  
Windows 3.x 6-1  
configuring 3-8  
testing the server connection 3-8  
domain name, entering 3-9  
DOS  
Windows 95 5-6  
Windows NT 5-6  
configuration settings  
changing with DOS diagnostic  
program 4-8  
auto configuring the NIC 4-5  
configuring the NIC 4-4  
diagnostic program 6-2  
installation program 4-1  
uninstallation program 4-4  
saving with 3Com NIC  
Diagnostics 3-14  
Configuration tab 5-7  
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2
INDEX  
drivers, installing supported  
Novell NetWare 4-1  
multiple installations  
making installation file for 3-15  
performing 5-10  
multiple NICs in Windows NT PC,  
installing 5-4  
Windows 3.1/DOS 4-1  
Windows 95 2-5  
Windows for Workgroups 4-1  
Windows NT 2-10  
DynamicAccess software 3-11  
DynamicAccess tab 5-7  
N
NetWare 4-1  
NLM files 4-3  
network  
E
EISA, reconfiguring to ISA 4-7  
Express installation 2-1  
drivers 4-3  
identifying PC on 3-10  
interface A-1  
testing the connection 3-4  
network supplier support D-3  
network test 5-8  
NIC  
F
fax service. See 3ComFacts  
configuration, changing 4-8  
disabling Plug and Play 2-7  
handling 1-3  
installing the 1-3  
link LED 1-7  
reinstalling software 5-9  
removing installation software 4-4  
specifications 1-2, A-1  
testing 3-3  
G
gateway server 3-7  
entering the address 3-7  
General tab 5-7  
Group 1 tests 6-2  
Group 2 test 6-3  
Group 3 test 6-4  
uninstalling NIC software 5-8  
NIC test 5-8  
non–Plug and Play BIOS 2-7, 3-3  
H
hardware conflicts in Windows 95 and  
Windows NT, resolving 5-1  
host name, entering 3-9  
O
online technical services D-1  
operating voltage requirements A-1  
I
I/O base address, changing 5-2  
identifying PC on the network 3-10  
installation file, making 3-15  
installations, automated 5-10  
installing drivers  
P
PACE technology 3-11, B-1  
pin assignments A-2  
Plug and Play  
Windows 3.1/DOS 4-1  
Windows 95 2-5  
configuring the NIC when disabled 2-8  
disabling 2-7  
preinstallation procedure for  
Windows 95 2-4  
printing AUTOLINK.LOG file 4-2  
problem report 5-7  
Windows for Workgroups 4-1  
installing multiple NICs, Windows NT 5-4  
installing the NIC 1-3  
IRQs  
level, changing 5-2  
list of available 2-4  
ISA, configuring to EISA 4-6  
R
reinstalling NIC software 5-9  
repeating previous installation 3-13  
resolving Windows 95 and Windows NT  
hardware conflicts 5-1  
returning products for repair D-6  
RJ-45 connector 1-2, 1-5  
pin assignments A-2  
L
link LED 1-7  
loopback plug, assembling 6-3  
M
maximum network segments 1-2  
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INDEX  
3
S
U
saving installation settings 3-14  
server address, entering the DNS 3-9  
server, DHCP, testing 3-6  
settings, changing configuration 4-8  
slide latch, AUI port 1-7  
software  
uninstalling NIC software 5-8  
URL D-1  
W
Web site 5-7, D-1  
Windows 3.1/DOS  
drivers, installing 4-1  
NIC  
installing  
Windows 95 2-5  
Windows NT 2-10  
reinstalling 5-9  
auto configure 4-5  
configuring 4-4  
uninstalling software 4-4  
Windows 95  
specifications 1-2, A-1  
network interface A-1  
operating voltage requirements A-1  
static electricity 1-3  
Statistics tab 5-7  
subnet mask, entering the 3-7  
Support tab 5-7  
changing I/O base address or IRQ 5-2  
Custom installation 2-1, 2-4  
Express installation 2-1  
installing NIC software 2-1  
performing automated  
installations 5-10  
supported network drivers 4-3  
Plug and Play, disabling 2-7  
preinstallation procedure 2-4  
reinstalling NIC software 5-9  
Windows for Workgroups  
drivers, installing 4-1  
T
TCP/IP, configuring  
in Windows 95 3-6  
in Windows NT 3-17  
technical support  
NIC  
3Com URL D-1  
bulletin board service D-1  
fax service D-2  
auto configure 4-5  
configuring 4-4  
uninstalling software 4-4  
Windows NT  
network suppliers D-3  
product repair D-6  
using CompuServe D-3  
test  
changing I/O base address or IRQ 5-3  
Custom installation 2-10  
installing multiple NICs 5-4  
performing automated  
installations 5-10  
DHCP server connection 3-6  
DNS server connection 3-8  
failure 6-6  
gateway connection 3-7  
Group 1 6-2  
reinstalling NIC software 5-9  
World Wide Web (WWW) D-1  
Group 2 6-3  
Group 3 6-4  
network 3-3, 5-8  
network connection 3-4  
NIC 3-3, 5-8  
troubleshooting  
3Com NIC Diagnostics 5-6  
crossover cable C-1  
DOS diagnostics 6-2  
hubs with crossover cable C-1  
initial 5-1, 6-1  
resource conflicts 5-1  
Windows 3.x 6-1  
Windows for Workgroups 6-1  
Windows NT 5-1  
Windows 95 5-1  
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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  
Lifetime  
1 year  
Other hardware products (unless otherwise specified in the warranty statement above)  
Spare parts and spares kits  
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.  
SOFTWARE  
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, CUSTOMER’S 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.  
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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 MODIFY, 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 PRODUCTS, 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.  
GOVERNING LAW  
This Limited Warranty shall be governed by the laws of the State of California, U.S.A. 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. This warranty gives you specific legal rights which may vary depending on local law.  
3Com Corporation, 5400 Bayfront Plaza, P.O. Box 58145, 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
2
This device may not cause harmful interference, and  
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 installation. 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.  
The user may find the following booklet prepared by the Federal Communications Commission helpful:  
The Interference 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.  
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FCC DECLARATION OF CONFORMITY  
We declare under our sole responsibility that the  
Model:  
Description:  
3C509B  
EtherLink III ISA 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  
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.  
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  
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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  
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NOTES  
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NOTES  
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NOTES  
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NOTES  
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NOTES  
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NOTES  
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