3Com 3CNJ90 - Manual

Installation Guide 4 Step 3:Mount the NJ90 Unit to the Wall or Cubicle Outlet with the screws provided. 3.2 - Set up the power supply : Selecting the power scheme and installing it: See Appendix C: Setting up the Power Supply (p.8). You can verify the NJ90 Network Jack Installation by checking the L...

Appendix A: NJ90 Specifications 5 Appendix A: NJ90 Specifications The NJ90 is a 4-port, un-managed Fast Ethernet switch that fits into most standard data port openings. The NJ90 allows up to four net- working devices, such as computers, printers, Voice over IP (VoIP) telephones, and scanners, to be ...

Appendix B: Wall Outlet Dimensions 7 Appendix B: Wall Outlet Dimensions Make sure the wall or cubicle opening where the NJ90 is being installed complies with the NEMA-WD6 standard, as described below. Figure 4 - Wall Outlet (NEMA-WD6) Dimensions 2.8125" (71.44 mm) 3.28125" (83.31 mm) referen...

Installation Guide 8 Appendix C: Setting up the Power Supply Power to the NJ90 can be supplied one of the following ways: 1. Over the network via an integrated switch that supports Power over Ethernet. 2. Over the network via a multi-port Ethernet power supply. 3. Over the network via a single-port ...

Installation Guide 10 Figure 7 - Using a Single-port Ethernet Power Supply 4) Using the 3Com Local Power Supply If your network does not support Power over Ethernet, or if you are not using a single-port or multi-port Ethernet power supply, you must purchase a local power supply from 3Com. To use th...

Installation Guide 12 Appendix D: Setting up the Network Cabling at Your Site The network cabling at your site (from the wiring closet to the wall or cubicle opening) may already be installed. If it is not, install the cabling following these general guidelines. CAUTION: It is recommended that a pro...

Appendix E: Troubleshooting the NJ90 13 Appendix E: Troubleshooting the NJ90 If you encounter problems with the NJ90: 1. Verify the NJ90 is receiving power by viewing the Power LED (it should be lit). If the Power LED is not lit, make sure:• The other end of the network cable is plugged into a syste...

Installation Guide 14 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, ...

17 The 3Com Corporation Limited Warranty and the Other Services described in this document supersede any such information that may be contained within your product user documentation. This warranty applies to customers located in the United States, Aus- tralia, Canada (except Quebec), Ireland, New Z...