NJ95 Network Jack User Guide 3CNJ95
davinci_gde.book Page 1 Thursday, December 26, 2002 4:52 PM User Guide NJ95 Network Jack 3CNJ95 4-port 10/100 Mbps Unmanaged Ethernet Switch http://www.3com.com/ http://www.3com.
davinci_gde.book Page 2 Thursday, December 26, 2002 4:52 PM 3Com Corporation ■ 5400 Bayfront Plaza Santa Clara, California ■ 95052-8145 ■ U.S.A. Copyright © 2001 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.
davinci_gde.book Page 3 Thursday, December 26, 2002 4:52 PM Contents 1. Package Contents 2 2. NJ95 Description 3 3. Installing the NJ95 Network Jack 5 4.
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davinci_gde.book Page 1 Thursday, December 26, 2002 4:52 PM User Guide The 3Com® Network Jack is a platform that provides connectivity at the edge of the network infrastructure. The NJ95 Network Jack, is a member of this family of products. The NJ95 Network Jack is a 4-port, un-managed Fast Ethernet switch that fits into most standard data port openings. It has a modular design consisting of a “main unit” and a “wall plate”.
davinci_gde.book Page 2 Thursday, December 26, 2002 4:52 PM User Guide 1. Package Contents Single Pack & Multi Pack The NJ95 Network Jack is available in single and 20-packs.
davinci_gde.book Page 3 Thursday, December 26, 2002 4:52 PM 2. NJ95 Description 2. NJ95 Description The following diagram shows the front view of the NJ95 and both the Universal (2a) and Manufacturer Specific (2b) wall plates.
davinci_gde.book Page 4 Thursday, December 26, 2002 4:52 PM User Guide 1 NJ95 Main Unit Allow up to four devices to be connected to the network. 2a Universal Wall Plate (Included) Used to mount the main unit – pass through “wall plate” and non manufacturer-specific. 2b ManufacturerSpecific Wall Plate (purchased separately – For available plates see www.3Com.com/ products and Appendix E) Used to Mount the Main Unit – Mount the specific connectors on the Wall Plate.
davinci_gde.book Page 5 Thursday, December 26, 2002 4:52 PM 3. Installing the NJ95 Network Jack 3. Installing the NJ95 Network Jack Figure 2: NJ95 Network Jack Main Unit 1 Install the Universal “wall plate” or Manufacturer-specific “wall plate”. 2 Mount the NJ95 Main unit on the Universal or Manufacturer-specific “wall plate”. 3 Set up the power supply (Appendix C).
davinci_gde.book Page 6 Thursday, December 26, 2002 4:52 PM User Guide 1a. Installing the Universal wall plate Figure 3a: Installing the Universal Wall Plate 1 Thread the RJ-45 Connector attached to the wiring closet cable through the opening in the Universal wall plate (Fig. 3a). or If necessary connect the coupler cable (Male RJ-45) to the female RJ-45 connector attached to the Network cable and thread it through the Universal wall plate (Fig. 3b).
davinci_gde.book Page 7 Thursday, December 26, 2002 4:52 PM 3. Installing the NJ95 Network Jack Figure 3b: Installing the Universal Wall Plate (with Coupler Cable) 2 Mount the Universal wall plate to the Outlet box with the screws provided.
davinci_gde.book Page 8 Thursday, December 26, 2002 4:52 PM User Guide 1b. Installing the Manufacturer-specific wall plate Figure 4: Installing the Manufacturer-specific Wall Plate 1 Mount the manufacturer-specific connectors (which are connected to the network cabling) on the manufacturerspecific wall plate. 2 Mount the manufacturer-specific wall plate to the Outlet box with the screws provided.
davinci_gde.book Page 9 Thursday, December 26, 2002 4:52 PM 3. Installing the NJ95 Network Jack 2a. Mount the NJ95 Main unit on the Universal or Manufacturer-specific wall plate. Figure 5: Rear view of NJ95 1 Ethernet Uplink port Connects the NJ95 to the network. Make sure the port on the network switch to which the NJ95 is connected is configured as a standard MDI port.
davinci_gde.book Page 10 Thursday, December 26, 2002 4:52 PM User Guide 2b.
davinci_gde.book Page 11 Thursday, December 26, 2002 4:52 PM 3.
davinci_gde.book Page 12 Thursday, December 26, 2002 4:52 PM User Guide 1 Connect the main unit RJ-45 plug into the female RJ-45 connector at the end of the wiring closet cable/coupler cable (Universal wall plate) or align it with the right most RJ45 connector (Manufacturer-specific wall plate). 2 Align the Screw Tab (Item #2) with the opening in the main unit. 3 Align the Alignment Tabs on the main unit with the slots (Item #3) in the Wall plate. 4 Snap the Main unit into the Wall plate). 2c.
davinci_gde.book Page 13 Thursday, December 26, 2002 4:52 PM 3. Installing the NJ95 Network Jack 1 Retaining Screw Retain the Main unit to the Wall plate 2 Main Latch Fastener Locks in the Main latch 1 Screw in the Retaining Screw (Item #1) 2 Secure the Main Latch Fastener (Item #2) NOTE: Make sure the vents along the edges of the NJ95 faceplate are clear of any obstructions. CAUTION: Make sure that you have sufficient clearance on all sides to access release points, retaining screw, and fastener.
davinci_gde.book Page 14 Thursday, December 26, 2002 4:52 PM User Guide 3. Set up the power supply Selecting the power scheme and installing it: See Appendix C: Setting up the Power Supply (p 23). You can verify the NJ95 Network Jack Installation by checking the LEDs. LED Description ■ ■ On—The NJ95 is connected to the network and a link has been established. Off—There is no connection to the network. (LAN) ■ ■ On—The NJ95 is receiving power (local or via the network).
davinci_gde.book Page 15 Thursday, December 26, 2002 4:52 PM 4. Un-Installing the NJ95 Network Jack 4. Un-Installing the NJ95 Network Jack Figure 8: Unfastening the NJ95 Main unit from the Wall plate 1 Unscrew the Retaining Screw (Item #1) 2 Release the Main Latch Fastener (Item #2).
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davinci_gde.book Page 17 Thursday, December 26, 2002 4:52 PM 4. Un-Installing the NJ95 Network Jack Figure 9b: Removing the NJ95 from the Manufacturer-specific Wall plate 3 Insert a pin (paper clip) along the groove (Item #1) to release the RJ-45 plug. 4 Pull the Main unit away from the Wall plate.
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davinci_gde.book Page 19 Thursday, December 26, 2002 4:52 PM Appendix A: Detail Description of NJ95 Appendix A: Detail Description of NJ95 The NJ95 is a 4-port, un-managed Fast Ethernet switch that fits into most standard data port openings. The NJ95 allows up to four networking devices, such as computers, printers, Voice over IP (VoIP) telephones, and scanners, to be connected to the network via one Ethernet port.
davinci_gde.book Page 20 Thursday, December 26, 2002 4:52 PM User Guide ■ Local Power Supply: Locally via an optional local power supply. See “Using the 3Com Local Power Supply” on page 28. Connecting Devices to the NJ95 After the NJ95 is installed, connect your networking devices (such as computers, printers, etc.) to any of the four switched ports on the front of the NJ95. If you installed the manufacturerspecific wall plate, you can connect to another device to the optional port.
davinci_gde.book Page 21 Thursday, December 26, 2002 4:52 PM Appendix B: Wall Plate Dimensions Appendix B: Wall Plate Dimensions Make sure the wall or cubicle opening where the NJ95 is being installed complies with the relevant standard, as described below.
davinci_gde.book Page 22 Thursday, December 26, 2002 4:52 PM User Guide There are instances where you would have a four hole outlet box, where the wall plate can be oriented Horizontally or Vertically.
davinci_gde.book Page 23 Thursday, December 26, 2002 4:52 PM Appendix C: Setting up the Power Supply Appendix C: Setting up the Power Supply Power to the NJ95 can be supplied one of the following ways: ■ Over the network via an integrated switch that supports Power Over Ethernet. ■ Over the network via a multi-port Ethernet power supply. ■ Over the network via a single-port Ethernet power supply. ■ Locally via a 3Com local power supply.
davinci_gde.book Page 24 Thursday, December 26, 2002 4:52 PM User Guide Using an Integrated Switch with Power Over Ethernet You must have a switch on the network that provides Power over Ethernet, compliant to the IEEE 802.3af standard.
davinci_gde.book Page 25 Thursday, December 26, 2002 4:52 PM Appendix C: Setting up the Power Supply Using a Multi-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 13. The multi-port Ethernet power supply from 3Com connects to an existing Ethernet or Fast Ethernet infrastructure with standard Category 5 or Category 5e UTP cabling, and powers up to 24 NJ95 Network Jacks.
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davinci_gde.book Page 27 Thursday, December 26, 2002 4:52 PM Appendix C: Setting up the Power Supply Using a Single-port Ethernet Power Supply To use a single-port Ethernet power supply, connect the power supply to the network hub or switch and to the NJ95, as shown in figure 14. See “Obtaining Optional Components” in Appendix E for ordering information. For complete installation instructions, see the single-port Ethernet power supply documentation.
davinci_gde.book Page 28 Thursday, December 26, 2002 4:52 PM User Guide 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 (see “Obtaining Optional Components” in Appendix E). To use the local power supply, make sure you have an electrical outlet near the site where the NJ95 will be installed.
davinci_gde.book Page 29 Thursday, December 26, 2002 4:52 PM Appendix C: Setting up the Power Supply 1 Plug the power cable into the Network Jack 2 Route the power cable through the stain relief fixture located on the wall plate 3 Secure the local power supply and cable to the wall 4 Plug the local power supply into the power source NOTE: Completing these procedures in sequence will reduce issues during the installation process. CAUTION: ONLY use the local power supply available from 3Com.
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davinci_gde.book Page 31 Thursday, December 26, 2002 4:52 PM Appendix D: Specifications Appendix D: Specifications Hardware NJ95 Power consumption 5 watts (max) Network Interface 10 Mbps Ethernet 10BASE-T Ethernet IEEE 802.3 industry standard for a 10 Mbps baseband CSMA/CD local area network 100 Mbps Ethernet 100BASE-TX Ethernet IEEE 802.
davinci_gde.book Page 32 Thursday, December 26, 2002 4:52 PM User Guide Performance Auto-negotiation Communication speed (10 Mbps or 100 Mbps) and duplex mode (full or half) is determined through auto-negotiation with the attached devices. The NJ95 attempts to negotiate the fastest connection possible (100 Mbps fullduplex).
davinci_gde.book Page 33 Thursday, December 26, 2002 4:52 PM Appendix D: Specifications Features Power Over Ethernet Compatible with IEEE 802.3af Local power supply Required for networks that do not support Power Over Ethernet Voice Over IP (VoIP) Compatible with VoIP standard.
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davinci_gde.book Page 35 Thursday, December 26, 2002 4:52 PM Appendix E: Obtaining Optional Components Appendix E: Obtaining Optional Components The NJ95 works with the following optional components. Updated information is available online at www.3com.com/ products. Component Purpose 3C Number(s) Wall plates For installing manufacturer specific 3CNJWP connectors and mounting the Main 3CNJWP-AV Unit.
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davinci_gde.book Page 37 Thursday, December 26, 2002 4:52 PM Appendix F: Setting up the Network Cabling at Your Site Appendix F: 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 professional cable installer perform these procedures.
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davinci_gde.book Page 39 Thursday, December 26, 2002 4:52 PM Appendix G: Troubleshooting the NJ95 Appendix G: Troubleshooting the NJ95 If you encounter problems with the NJ95: ■ Verify the NJ95 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 system that provides Power over Ethernet according to IEEE 802.3af, if using Power over Ethernet.
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davinci_gde.book Page 41 Thursday, December 26, 2002 4:52 PM Appendix H: Contacting Technical Support Appendix H: 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 publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site: www.3com.com.
davinci_gde.book Page 42 Thursday, December 26, 2002 4:52 PM User Guide 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-theclock access to technical information on most 3Com products.
davinci_gde.book Page 43 Thursday, December 26, 2002 4:52 PM Appendix H: Contacting Technical Support Support from Your Network Supplier If you require additional assistance, consult your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.
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davinci_gde.book Page 45 Thursday, December 26, 2002 4:52 PM Appendix H: Contacting Technical Support Country Telephone # Norway 815 33 047 Poland 00800 4411357 Portugal 707 200 123 South Africa 0800 991196 Spain 9 021 60455 Sweden 0771114453 Switzerland 0848850112 UK 0870 909 3266 All Other Countries +44 1442 435529 Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain an authorization number.
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davinci_gde.book Page 47 Thursday, December 26, 2002 4:52 PM Limited Warranty and Regulatory Compliance Information 3Com Corporation Limited Warranty This warranty applies to customers located in the United States, Australia, Canada (except Quebec), Ireland, New Zealand, U.K.
davinci_gde.book Page 48 Thursday, December 26, 2002 4:52 PM Limited Warranty and Regulatory Compliance Information be packaged appropriately for safe shipment and sent prepaid. It is recommended that returned products be insured or sent by a method that provides for tracking of the package. Responsibility for loss or damage does not transfer to 3Com until the returned item is received by 3Com. 3Com will retain risk of loss or damage until the item is delivered to Customer.
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davinci_gde.book Page 50 Thursday, December 26, 2002 4:52 PM Limited Warranty and Regulatory Compliance Information GOVERNING LAW This Limited Warranty shall be governed by the laws of the State of California, U.S.A., and by the laws of the United States, excluding their conflicts of laws principles. The United Nations Convention on Contracts for the International Sale of Goods is hereby excluded in its entirety from application to this Limited Warranty. 3Com Corporation 5400 Bayfront Plaza P.O.
davinci_gde.book Page 51 Thursday, December 26, 2002 4:52 PM Limited Warranty and Regulatory Compliance Information FCC Compliance This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
davinci_gde.book Page 52 Thursday, December 26, 2002 4:52 PM European Union Declaration of Conformity This product is in compliance with the essential requirements and other relevant provisions of Directives 73/23/EEC and 89/336/EEC. 3Com Corporation, 5400 Bayfront Plaza, P.O.
3Com Corporation P.O. Box 58145 5400 Bayfront Plaza Santa Clara, CA 95052-8145 U.S.A. www.3com.com 09-2264-000 Printed in the U.S.A.
