PictureTel III ISA

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.

Contents

Main 3Com Corporation 95052-8145 Santa Clara, California 5400 Bayfront Plaza Lifetime Limited Warranty ONTENTS IZARD W I I ONFIGURATION W AND 95 6 T PECIFICATIONS A X B EATURES GREEMENT A ICENSE F IGURES Page T Page ABOUT THIS GUIDE How to Use This Guide 2ABOUT THIS GUIDE Conventions Table 1 and Table 2 list conventions that are used throughout this guide. 1 I Network Interface Card Overview 1-2 CHAPTER 1: NETWORK INTERFACE CARD INSTALLATION Before You Begin (this guide) Installing the NIC Page Connecting to the Network Page Link LED Page 2 INSTALLATION Selecting the Type of Installation Express Installation Custom Installation Windows 95 Setup Windows 95 Setup 2-3 Figure 2-1 Windows 95 NIC Installation Overview Performing the Preinstallation Procedure Conguring the NIC in a Plug and Play PC Page Disabling Plug and Play on the NIC Page Page Windows NT Setup WARNING: If you are installing multiple 3C509B NICs in a Windows NT Setup 2-11 Figure 2-11 Windows NT NIC Installation Overview Page 3 Custom Installation Conguring the NIC To Accept Conguration Settings To Modify Conguration Settings Testing the NIC and the Network Connection Page Installing TCP/IP Under Windows 95 To Not Install TCP/IP To Install TCP/IP Conguring TCP/IP Under Windows 95 To Obtain an IP Address Automatically To Specify an IP Address Manually Conguring DNS To Obtain a DNS Address Automatically To Specify a DNS Address Manually Identifying Your PC on the Network Conguring DynamicAccess Software To Not Congure DynamicAccess Software To Congure DynamicAccess Software Repeating a Previous Installation To Not Save Installation Settings To Save Installation Settings Page Completing the Installation and Conguration Windows 95 Windows NT Page Page Page 4 AND CONFIGURATION UNDER WINDOWS 3.X Installing NetWare Drivers for DOS, Windows 3.1, and Windows for Workgroups AutoLink Requirements Page Obtaining NetWare Loadable Modules Installing Other Supported Network Drivers Removing NIC Software Conguring the NIC Reconguring the NIC Changing NIC Conguration from ISA to EISA Changing NIC Conguration from EISA to ISA Changing Conguration Settings Page Page 5 WINDOWS NT T Checklist Resolving Hardware Conicts in Windows 95 and Windows NT Changing the I/O Base Address or the Interrupt Request Level Windows 95 Windows NT Installing Multiple NICs in a Windows NT PC Installing the First NIC Installing Subsequent NICs Windows 95 and Windows NT Troubleshooting Diagnostic Testing Under Windows 95 and Windows NT Starting the 3Com NIC Diagnostics Program 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. Running Tests Uninstalling the NIC Reinstalling NIC Software Performing Automated Installations Installing from the Hard Disk Installing from a Diskette 6 TROUBLESHOOTING Checklist Diagnostic Testing Under Windows 3.x Starting the DOS Conguration and Diagnostic Program Running the Group 1 Tests Running the Group 2 Test Running the Group 3 Test Page Getting Help If a Test Fails A NIC Specications A-2 APPENDIX A: SPECIFICATIONS RJ-45 Connector Pin Assignments Figure A-1 shows the RJ-45 connector pin assignments. AUI Connector Pin Assignments Table A-1 lists the pin assignments for the AUI (attachment unit interface) connector. Cable Specications Page B Additional Ranges Tab 1 2 3 Advanced Options Tab FIFO Packet Threshold Concurrent UDP Streams Low-Priority Ratio Natural Packet Interval Page C TROUBLESHOOTING TIPS 1 2 3 2 Figure C-1 Straight-Through and Crossover Cable Pinouts to RD+), the LED blinks. D Online Technical Services World Wide Web Site 3Com Bulletin Board Service 3ComFacts Automated Fax Service 3ComForum on CompuServe Online Service 1 2 3 Support from Your Network Supplier D-4 APPENDIX D: TECHNICAL SUPPORT Support from 3Com Support from 3Com D-5 Returning Products for Repair I Numbers A B C E F G H I S T U W Page 3Com Corporation L IMITED W H S STANDARD WARRANTY SERVICE WARRANTIES EXCLUSIVE FCC C LASS B S FCC D ECLARATION OF C 3COM END USER SOFTWARE LICENSE AGREEMENT IMPORTANT: Read Before Using This Product