3Com Hub 1000 SX manual To obtain an RMA number, call or fax

Page 59
To obtain an RMA number, call or fax:

Returning Products for Repair

C-5

Returning Products Before you send a product directly to 3Com for repair, you must first

for Repairobtain a Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense.

To obtain an RMA number, call or fax:

Country

Telephone Number

Fax Number

 

 

 

 

U.S.A. and Canada

1 800 876

3266, option 2

408 764 7120

Latin America

1 408 326

2927

408 764 7120

Europe, South Africa, and

44 1442 435860

44 1442 435822

Middle East

 

 

 

Elsewhere

1 408 326

2926

1 408 764 7120

 

 

 

 

Image 59
Contents A member of the 3Com SuperStack II System SuperStack II Hub 1000 SXUser Guide UNITED STATES GOVERNMENT LEGENDS 3Com Corporation 5400 Bayfront Plaza Santa Clara, CaliforniaABOUT THIS GUIDE 1 INTRODUCTION CONTENTS2 INSTALLING THE HUB POST Messages A USING THE CONSOLE PORT3 MAKING CONNECTIONS FCC CLASS A VERIFICATION STATEMENT SPECIFICATIONSGLOSSARY INDEX 3COM CORPORATION LIMITED WARRANTY TECHNICAL SUPPORTPage FIGURES Page Port Configuration Menu TABLESPage Description ABOUT THIS GUIDEIcon Notice Typeand buttons CommandsSETDEFAULT !0 -IP NETaddr = Menu commandsGeneral Description INTRODUCTIONHub 1000 SX Operation Downlinksand Uplink Full-DuplexFlow Control Functions Features andSuperStack II Hub 1000 SX User Guide INSTALLING THE HUBHub Description The hub’s front and rear panels are shown in Figure Connecting the Hub Installing and4 Repeat steps 2 and 3 for the other side of the hub Type ConnectorTable 2-1 Downlink Connections Maximum CableStatus Table 2-2 Hub 1000 SX IndicatorsIndicator ColorThe gigabit interface connector GBIC port on the rear panel of the Connecting aGBIC Module Power Systems Using OptionalCabling Options Power ModulesTable 2-4 Advanced RPS Configuration Options A hub connects to a UPS unit through the hub’s AC power cordYou can connect a UPS unit to an Advanced RPS unit as long as you do not exceed the maximum wattage 325 watts for the UPS unit. To verify that the UPS unit’s maximum wattage is not exceeded, calculate the total power consumption of all units connected to the Advanced RPS. If the result is less than 325 watts, your configuration is safe if the result is greater than 325 watts, then there are too many units connected to the Advanced RPS Page Table 3-1 Gigabit Ethernet Maximum Cable Lengths MAKING CONNECTIONSconnecting to the network backbone. See Figure Power WorkgroupAggregating ServersYou can use the Hub 1000 SX downlinks to aggregate 10/100 Mbps SwitchesThe Hub 1000 SX does not support bandwidth aggregation trunking 3-4 CHAPTER 3 MAKING CONNECTIONS Figure 3-3 Aggregated Switches ConnectionThe best use of the hub uplink is as a backbone connection to a 3Com ConnectingFigure 3-4 Mixed Connection Solution Figure 3-6 Uplink Connection to a 10/100 Mbps SwitchTable 3-2 Troubleshooting Tips SymptomUSING THE CONSOLE PORT Console Port Connecting theWith Power RequirementsDisconnected from powerTo connect the console port when the hub is disconnected Connecting the Console Port A-3After 4 minutes of inactivity, the CLI logs off automatically Logging Onmessage, return the hub to the supplier Configuring PasswordPort Settings Changing theTo display the Port Configuration menu Table A-2 Port Configuration Menu Configuring Port SettingsA-8 APPENDIX A USING THE CONSOLE PORT Configuring Port Settings and be configured to receive pause frames Configuring Port Settings A-11 Table A-3 Hub Status Information DisplayingHub Status matrix, Y indicates yes and n indicates no. See Table A-3Displaying Hub Status A-13 A-14 APPENDIX A USING THE CONSOLE PORT Restoring the Factory Default SettingsChecking the Updating theFirmware Image entering optionXmodem-CRC To transfer the firmware image file log in again. To restart the file transfer, repeat steps 6 and during a firmware update, the CLI displays the following messageLogging Off While saving port settings or Table A-4 File Transfer Error MessagesTable A-5 Fatal Error Messages Environmental Operating Ranges SPECIFICATIONSPhysical Dimensions Page Online Technical ServicesBoard Service TECHNICAL SUPPORT C-2 APPENDIX C TECHNICAL SUPPORT Access by Analog Modem Access by Digital Modem 1 408 654Local access numbers are available within the following countries 305 261 3266 Miami, Florida Santa Clara, CaliforniaCzech Republic/Slovak Central European HQTo obtain an RMA number, call or fax Page GLOSSARY transmission of light signals Carrier Sense Multiple Access/Collision Detection. Channel accesscable is based on CSMA/CD Carrier Sense Multiple Access/Collision access methodMbps IEEEincoming flow controlcontrol. See also asymmetric flow control, flow control, pause frame Numbers SymbolsINDEX Page Switch 9300 3-2, 3-3 Page SOFTWARE 3Com Corporation LIMITED WARRANTYSTANDARD WARRANTY SERVICE HARDWAREGOVERNING LAW FCC CLASS A VERIFICATION STATEMENTLIMITATION OF LIABILITY