3Com 3CNJ90 - NJ 90 Network Jack Switch Support and Manuals
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User Guide - Page 5
NJ90 Installation
3
Appendix
A: NJ90 Specifications
5
B: Wall Outlet Dimensions
7
C: Setting up the Power Supply
8
D: Setting up the Network Cabling at Your Site
12
E: Troubleshooting the NJ90
13
F: Contacting Technical Support
14
Limited Warranty & Regulatory Compliance Information
17
List of Contents
Contents
1. NJ90 Package Contents
1
2. NJ90 Description
2
3. Table ...
User Guide - Page 7
...software to the network via its own Ethernet port. Single Pack & Multi Pack
The NJ90 Network Jack is available in the wall. The NJ90 Network Jack is a 4-port, un-managed Fast Ethernet switch that provides connectivity at : www.3com.com/support
1. Before you begin the installation, make sure you begin installation...and no configuration. NJ90 User Guide
The 3Com Network Jack is a platform that...
User Guide - Page 8
....
2 LED's
Indicates network connection
and activity status.
Installation Guide
2. Indicates NJ90 power status.
3 Uplink Port
Connects NJ90 to the Network cable
4 Hook
Secure the Coupler Cable with a tiewrap
5 Power socket
NJ90 can be connected to be powered from a local power supply (available for purchase separately from 3Com)
6 Strain Relief Channel Strain Relief Channel for the...
User Guide - Page 9
... included in the package to connect the Network jack to the network cable (recommended installation). NJ90 Installation
3.1 Install the NJ90 Network Jack. 3.2 Set up the power supply
3.1 - Install the NJ90 Network Jack
Wall
To wiring closet
Network cable
RJ-45 coupler cable
3. NJ90 Installation
Wall
To wiring closet
Network cable
Figure 2 - or If the end of the network...
User Guide - Page 10
... to the network and a link has been established.
•Blinking - The NJ90 is not receiving power.
4
The NJ90 is no connection to the Wall or Cubicle Outlet with the screws provided.
3.2 - Network Activity. •Off - LED
Description
(Lan)
•On - Set up the power supply :
Selecting the power scheme and installing it: See Appendix C: Setting up the Power Supply (p.8).
User Guide - Page 12
Installation Guide
Performance
Auto-negotiation
Environment Operating temperature Storage temperature
Communication speed (10...
20,000 ft
IEEE 802.3 10BASE-T, 100BASE-TX and auto-negotiation
Power Over Ethernet: IEEE 802.3af
Packet Prioritization: 802.1p (QoS) Features
Power Over Ethernet
Compatible with IEEE 802.3af
Local power supply
Required for networks that do not support Power ...
User Guide - Page 14
Installation Guide
Appendix C: Setting up the Power Supply
Power to the NJ90 can be supplied one of power supplies that support the NJ90, go to www.3com.com CAUTION: ONLY use . Over the network via a 3Com local power supply. Locally via a multi-port Ethernet power supply. 3. Wiring closet
To Network Jack
Figure 5 - Over the network via an integrated switch that provides Power over Ethernet, ...
User Guide - Page 15
...in figure 7.
9 Using a Multi-port Ethernet Power Supply
3) Using a Single-port Ethernet Power Supply
To use a multi-port Ethernet power supply, you must connect the power supply to your network, as shown in figure 6 on page 9. Network switch
Wiring closet
To network hub/switch
To Network Jack
Multi-port Ethernet power supply
Figure 6 - Appendix C: Setting up to 24 NJ90 Network Jacks...
User Guide - Page 16
..., make sure you must purchase a local power supply from 3Com.
Using the 3Com Local Power Supply
10 Installation Guide
Network switch
To electrical outlet
Wiring closet
To network hub/switch To Network Jack
Figure 7 - Figure 8 - 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...
User Guide - Page 17
... in sequence will reduce issues during the installation process. Updated information is available online at www.3com.com/products
Component Integrated Switch with the following Power Supplies.
Route the power cable through the stain relief fixture. 3.
For locally powering a single NJ90; required if your network does not support Power Over Ethernet.
3C Number(s) 3C17205 3CNJPSE24...
User Guide - Page 19
... E: Troubleshooting the NJ90
Appendix E: Troubleshooting the NJ90
If you encounter problems with the NJ90: 1. Make sure the port on the switch to proper length and cabling specifications for terminating the cable. If the Power LED... a system
that provides Power over Ethernet. • The Local Power Supply is connected to the connector manufacturer's instructions for your network. 3.
User Guide - Page 20
...: 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 you access the 3Com Corporation World Wide Web site: www.3com.com.
90 Day Free Installation Support
3Com provides free installation and troubleshooting telephone support for this service gives all 3Com customers and partners...
User Guide - Page 21
...authorized 3Com service partners who are unable to consult your network supplier for assistance, have the following information ready: • Product model name, part number, and serial number • A list of system hardware and software, including revision levels • Diagnostic error messages • Details about recent configuration changes, if applicable
Returning Products for Repair...
User Guide - Page 24
... damage until the returned item is caused by law. Installation Guide
3Com makes no warranty or representation that its authorized reseller may be required. THE WARRANTY PROVISIONS OF THIS DOCUMENT DO NOT APPLY TO SUCH THIRD PARTY SOFTWARE. A User Service Order (USO), Return Material Authorization (RMA) or Service Repair Order (SRO) number will make reasonable efforts to...
User Guide - Page 26
... your access to technical support by the laws of the United States, excluding their application to you. The United Nations Convention on local law. Installation Guide or the limitation of ... on-line at http://support.3com.com/registration/frontpg.pl
20 Box 58145, Santa Clara, CA 95052-8145 (408) 326-5000 Rev. 10/01/2002 Register Online: When you specific legal rights which may ...
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