3Com 3CNJ90 manual NJ90 User Guide, NJ90 Package Contents

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NJ90 User Guide

The 3Com Network Jack is a platform that provides connectivity at the edge of the network infrastructure. The NJ90 Network Jack, is a member of this family of products.

The NJ90 Network Jack is a 4-port, un-managed Fast Ethernet switch that fits into most standard data port openings.

The NJ90 Network Jack quadruples port connections where a single port (and cable) already exists in the wall. Expanding port connec- tions with the 3Com Network Jack is a less expensive and less dis- ruptive alternative to running additional cabling. Also, the 3Com Network Jack is installed in the wall, making it more secure and out of the way than deploying a remote desktop switch.

The NJ90 Network Jack allows up to four networking devices, such as computers, printers, Voice over IP (VoIP) telephones, and scanners, each to be connected to the network via its own Ethernet port.

The NJ90 needs no software to operate and no configuration. All ports feature 10/100 Mbps auto-negotiation, which configures the NJ90 Network Jack for 10 Mbps or 100 Mbps connections automati- cally.

Before you begin installation, register your product at: www.3com.com/support

1. NJ90 Package Contents

- Single Pack & Multi Pack

The NJ90 Network Jack is available in single and 20-packs. Before you begin the installation, make sure you familiarize yourself with the following items, which are included with the NJ90:

NJ90 Unit

6x32 screws (2 per NJ90) for mounting the NJ90 to the wall or office cubicle

RJ-45 Male-to-Male coupler cable (1 per NJ90) for connecting the NJ90 unit to the Network Ethernet cable (required only in case your network cable is terminated with a female RJ-45 con- nector)

User Guide (1 per package)

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Contents NJ90 Network Jack Page User Guide NJ90 Network Jack United States Government Legend Table of Contents Page NJ90 User Guide NJ90 Package ContentsNJ90 Description NJ90 Feature DescriptionInstall the NJ90 Network Jack NJ90 InstallationLED Description Set up the power supplyHardware Appendix a NJ90 SpecificationsNetwork Interface Standards Conformance FeaturesPerformance EnvironmentAppendix B Wall Outlet Dimensions Using an Integrated Switch with Power over Ethernet Appendix C Setting up the Power SupplyUsing a Single-port Ethernet Power Supply Using a Multi-port Ethernet Power SupplyUsing the 3Com Local Power Supply Component Purpose Installation InstructionsAppendix D Setting up the Network Cabling at Your Site Appendix E Troubleshooting the NJ90 Online Technical Services Day Free Installation SupportAppendix F Contacting Technical Support Support from 3Com Support from Your Network SupplierReturning Products for Repair Installation Guide Limited Warranty Installation Guide Limited Warranty Page Page 3Com Corporation