3Com 3CNJ90 manual Appendix F Contacting Technical Support, Day Free Installation Support

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Installation Guide

Appendix F: Contacting 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 publica- tion. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site: www.3com.com.

90 Day Free Installation Support

3Com provides free installation and troubleshooting telephone sup- port for this product for 90 days from the date of purchase. Hours of operation are subject to change. See “Support from 3Com” on page 15.

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 Cor- poration 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 a software library, as well as support options that range from technical education to mainte- nance 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, around-the-clock access to technical informa- tion on most 3Com products.

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Contents NJ90 Network Jack Page User Guide NJ90 Network Jack United States Government Legend Table of Contents Page NJ90 Package Contents NJ90 User GuideNJ90 Feature Description NJ90 DescriptionNJ90 Installation Install the NJ90 Network JackSet up the power supply LED DescriptionNetwork Interface Appendix a NJ90 SpecificationsHardware Features PerformanceEnvironment Standards ConformanceAppendix B Wall Outlet Dimensions Appendix C Setting up the Power Supply Using an Integrated Switch with Power over EthernetUsing a Multi-port Ethernet Power Supply Using a Single-port Ethernet Power SupplyUsing the 3Com Local Power Supply Installation Instructions Component PurposeAppendix D Setting up the Network Cabling at Your Site Appendix E Troubleshooting the NJ90 Appendix F Contacting Technical Support Day Free Installation SupportOnline Technical Services Returning Products for Repair Support from Your Network SupplierSupport from 3Com Installation Guide Limited Warranty Installation Guide Limited Warranty Page Page 3Com Corporation