3Com 8 manual Technical Support, Online Technical Services, World Wide Web Site

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TECHNICAL SUPPORT

3Com provides easy access to technical support information through a variety of services. This section describes these services.

Information contained in this section is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site.

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 Knowledgebase Web Services.

World Wide Web Site

To access the latest networking information on the 3Com Corporation World Wide Web site, enter this URL into your Internet browser:

http://www.3com.com/

This service provides access to online support information such as technical documentation and software, as well as support options that range from technical education to maintenance and professional services.

3Com Knowledgebase Web Services

This interactive tool contains technical product information compiled by 3Com expert technical engineers around the globe. Located on the World Wide Web at:

http://knowledgebase.3com.com.

This service gives all 3Com customers and partners complementary, round-the-clock access to technical information on most 3Com products.

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Contents OfficeConnect Ethernet Hub 4, 4C, 8, 8C 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Important Safety Information Wichtige Sicherheitshinweise Consignes importantes de sécurité Technical Support Introduction Workstation Connections Creating Your NetworkWhat Else Do I Need? Transceiver ConnectionsHub Connections 10BASE-2Twisted Pair TP Cables Stacking the Units Together Rubber FeetStacking Clip Using Your Hub Positioning Your HubSecuring Your Hub Network Utilization LEDs Hub 4C only Officeconnect Ethernet HUB 4 and 4CEthernet Hub 4 and 4C-Front AUI/COAX Status LEDs Hub 4C onlyEthernet Hub 4 and 4C-Rear 10BASE-2 port Hub 4C onlyConnecting Workstations and Other Equipment to Your Hub Connecting OfficeConnect Ethernet Hubs TogetherConnecting Transceivers to the AUI Port Connecting Hubs Using 10BASE-2 Checking ConnectionsConnecting Hubs Using 10BASE-T Spot ChecksProblem Solving for the HUB 4 and 4C Straight-through Cable/Crossover Cable Ethernet Hub 8 and 8C-Front Power LED Collision LEDOfficeconnect Ethernet HUB 8 and 8C Port Status LEDsPower Adapter socket Uplink/Normal switch Ethernet Hub 8 and 8C-Rear10BASE-2 port Hub 8C only Connecting Workstations and Other Equipment to Your Hub 50 Ohm Terminator Switch set to Normal out Uplink Problem Solving for the HUB 8 and 8C Normal Pin Uplink Port Rx+ Tx+ Networking Terminology Power Weight Dimensions and StandardsDimensions and Operating Conditions StandardsRegulated Materials Statement Environmental StatementsEnd Of Life Statement Environmental Statement about the DocumentationImportant Safety Information Wichtige Sicherheitshinweise Consignes Importantes DE Sécurité Technical Support Online Technical Services3Com Knowledgebase Web Services World Wide Web SiteSupport from Your Network Supplier Support from 3ComCountry Telephone Number Asia, Pacific Rim EuropeEurope, South Africa, and Middle East Country Telephone Number Latin America North AmericaReturning Products for Repair Country Telephone Number Fax Number3Com Corporation Limited Warranty Warranties Exclusive Disclaimer Electromagnetic Compatibility Wall mounting screw hole guide 150 mm 5.9 Part No. DUA 1670-0AAA04 Published June