3Com Hub 1000 SX manual Santa Clara, California, Czech Republic/Slovak, Central European HQ

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C-4APPENDIX C: TECHNICAL SUPPORT

C-4APPENDIX C: 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	800 NET 3Com
5400 Bayfront Plaza
Santa Clara, California
95052-8145
U.S.A.
3Com Asia Limited
Australia	61 2 9937 5000 (Sydney)
Hong Kong	61 3 9866 8022 (Melbourne)
Hong Kong	852 2501 1111
India	91 11 644 3974
Indonesia	62 21 572 2088
Japan	81 6 536 3303 (Osaka)
Korea	81 3 3345 7251 (Tokyo)
Korea	82 2 3455 6300
Malaysia	60 3 732 7910
New Zealand	64 9 366 9138
Philippines	632 892 4476
P.R. of China	8610 68492568 (Beijing)
Singapore	86 21 63501581 (Shanghai)
Singapore	65 538 9368
Taiwan, R.O.C.	886 2 377 5850
Thailand	662 231 8151 5
3Com Austria	43 1 580 17 0
3Com Benelux B.V.
Belgium	32 2 725 0202
Netherlands	31 0346 586211
3Com Canada
Calgary	403 265 3266
Edmonton	403 423 3266
Montreal	514 683 3266
Ottawa	613 566 7055
Toronto	416 498 3266
Vancouver	604 434 3266
3Com France	33 1 69 86 68 00
3Com GmbH
Czech Republic/Slovak	420 2 21845 800
Republic

Regional Sales Office	Telephone Number

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

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Contents User Guide SuperStack II Hub 1000 SXA member of the 3Com SuperStack II System 3Com Corporation 5400 Bayfront Plaza Santa Clara, California UNITED STATES GOVERNMENT LEGENDS2 INSTALLING THE HUB CONTENTSABOUT THIS GUIDE 1 INTRODUCTION 3 MAKING CONNECTIONS A USING THE CONSOLE PORTPOST Messages TECHNICAL SUPPORT SPECIFICATIONSGLOSSARY INDEX 3COM CORPORATION LIMITED WARRANTY FCC CLASS A VERIFICATION STATEMENTPage FIGURES Page TABLES Port Conﬁguration MenuPage Notice Type ABOUT THIS GUIDEIcon DescriptionMenu commands CommandsSETDEFAULT !0 -IP NETaddr = and buttonsHub 1000 SX INTRODUCTIONGeneral Description Full-Duplex Downlinksand Uplink OperationFlow Control Features and FunctionsINSTALLING THE HUB SuperStack II Hub 1000 SX User GuideHub Description The hub’s front and rear panels are shown in Figure Installing and Connecting the Hub4 Repeat steps 2 and 3 for the other side of the hub Maximum Cable ConnectorTable 2-1 Downlink Connections TypeColor Table 2-2 Hub 1000 SX IndicatorsIndicator StatusGBIC Module Connecting aThe gigabit interface connector GBIC port on the rear panel of the Using Optional Power SystemsPower Modules Cabling OptionsA hub connects to a UPS unit through the hub’s AC power cord Table 2-4 Advanced RPS Conﬁguration OptionsYou 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 MAKING CONNECTIONS Table 3-1 Gigabit Ethernet Maximum Cable LengthsServers Power WorkgroupAggregating connecting to the network backbone. See FigureThe Hub 1000 SX does not support bandwidth aggregation trunking SwitchesYou can use the Hub 1000 SX downlinks to aggregate 10/100 Mbps Figure 3-3 Aggregated Switches Connection 3-4 CHAPTER 3 MAKING CONNECTIONSFigure 3-4 Mixed Connection ConnectingThe best use of the hub uplink is as a backbone connection to a 3Com Symptom Figure 3-6 Uplink Connection to a 10/100 Mbps SwitchTable 3-2 Troubleshooting Tips SolutionUSING THE CONSOLE PORT Requirements Connecting theWith Power Console PortConnecting the Console Port A-3 from powerTo connect the console port when the hub is disconnected Disconnectedmessage, return the hub to the supplier Logging OnAfter 4 minutes of inactivity, the CLI logs off automatically Changing the PasswordPort Settings ConﬁguringTo display the Port Conﬁguration menu Configuring Port Settings Table A-2 Port Conﬁguration MenuA-8 APPENDIX A USING THE CONSOLE PORT Configuring Port Settings and be conﬁgured to receive pause frames Configuring Port Settings A-11 matrix, Y indicates yes and n indicates no. See Table A-3 DisplayingHub Status Table A-3 Hub Status InformationDisplaying Hub Status A-13 Restoring the Factory Default Settings A-14 APPENDIX A USING THE CONSOLE PORTentering option Updating theFirmware Image Checking theXmodem-CRC To transfer the ﬁrmware image ﬁle Logging Off during a ﬁrmware update, the CLI displays the following messagelog in again. To restart the ﬁle transfer, repeat steps 6 and Table A-5 Fatal Error Messages Table A-4 File Transfer Error MessagesWhile saving port settings or Physical Dimensions SPECIFICATIONSEnvironmental Operating Ranges Page TECHNICAL SUPPORT ServicesBoard Service Online Technical1 408 654 Access by Analog ModemAccess by Digital Modem C-2 APPENDIX C TECHNICAL SUPPORTLocal access numbers are available within the following countries Central European HQ Santa Clara, CaliforniaCzech Republic/Slovak 305 261 3266 Miami, FloridaTo obtain an RMA number, call or fax Page GLOSSARY access method Carrier Sense Multiple Access/Collision Detection. Channel accesscable is based on CSMA/CD Carrier Sense Multiple Access/Collision transmission of light signalsﬂow control IEEEincoming Mbpscontrol. See also asymmetric ﬂow control, ﬂow control, pause frame INDEX SymbolsNumbers Page Switch 9300 3-2, 3-3 Page HARDWARE 3Com Corporation LIMITED WARRANTYSTANDARD WARRANTY SERVICE SOFTWARELIMITATION OF LIABILITY FCC CLASS A VERIFICATION STATEMENTGOVERNING LAW