3Com NJ95 Network Jack Bedienungsanleitung

3CNJ95

NJ95

Network Jack

User Guide

NJ95 Network Jack

3CNJ95

4-port 10/100 Mbps Unmanaged

Ethernet Switch

User Guide

http://www.3com.com/

http://www.3com.com/productreg

09-2264-000

Published October 2002

davinci_gde.book Page 1 Thursday, December 26, 2002 4:52 P

3Com Corporation

■

5400 Bayfront Plaza

Santa Clara, California

■

95052-8145

■

U.S.A.

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.

3Com Corporation reserves the right to revise this documentation and to

make changes in content from time to time without obligation on the part of

3Com Corporation to provide notification of such revision or change. 3Com

Corporation provides this documentation without warranty, term, or condition

of any kind, either implied or expressed, including, but not limited to, the

implied warranties, terms or conditions of merchantability, satisfactory quality,

and fitness for a particular purpose. 3Com may make improvements or

changes in the product(s) and/or the program(s) described in this

documentation at any time.

If there is any software on removable media described in this documentation,

it is furnished under a license agreement included with the product as a

separate document, in the hard copy documentation, or on the removable

media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are

unable to locate a copy, please contact 3Com and a copy will be provided to

you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and

the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and

developed solely at private expense. Software is delivered as “Commercial

Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a

“commercial item” as defined in FAR 2.101(a) and as such is provided with

only such rights as are provided in 3Com’s standard commercial license for the

software. Technical data is provided with limited rights only as provided in

DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is

applicable. You agree not to remove or deface any portion of any legend

provided on any licensed program or documentation contained in, or delivered

to you in conjunction with, this user guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the

United States and may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation. All

other company and product names may be trademarks of the respective

companies with which they are associated.

davinci_gde.book Page 2 Thursday, December 26, 2002 4:52 P

1. Package Contents 2

2. NJ95 Description 3

3. Installing the NJ95 Network Jack 5

4. Un-Installing the NJ95 Network Jack 15

Appendix A: Detail Description of NJ95 19

Appendix B: Wall Plate Dimensions 21

Appendix C: Setting up the Power Supply 23

Appendix D: Specifications 31

Appendix E: Obtaining Optional Components 35

Appendix F: Setting up the Network Cabling 37

Appendix G: Troubleshooting the NJ95 39

Appendix H: Contacting Technical Support 41

3Com Corporation Limited Warranty and Regulatory

Compliance Information

Contents

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davinci_gde.book Page 4 Thursday, December 26, 2002 4:52 P

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”.

The NJ95 Network Jack quadruples port connections where a

single port (and cable) already exists in the wall. Expanding port

connections with the 3Com Network Jack is a less expensive and

less disruptive 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 NJ95 Network Jack allows up to four networking devices,

such as computers, printers, Voice Over IP (VoIP) telephones, and

scanners, to be connected to the network via its own Ethernet

port. An optional port is available that allows an additional

device to be connected to a separate network segment through

the same NJ95.

The NJ95 needs no software to operate and no configuration. All

ports feature 10/100 Mbps auto-negotiation, which configures

the NJ95 Network Jack for 10 Mbps or 100 Mbps connections

automatically.

Before you begin installation, register your product at:

www.3com.com/support.

User Guide

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User Guide

1. Package Contents

Single Pack & Multi Pack

The NJ95 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

NJ95:

■

NJ95 Main Unit

■

Universal “wall plate” (1 per NJ95) – Screws on to the

Outlet Box in the wall/raceway and on which the NJ95 Main

Unit is mounted (Optional: Manufacturer Specific “wall

plate” can be purchased separately - For a list of supported

manufacturers and connectors, go to www.3com.com/

products)

■

M3.5 x 30mm machine screws (2 per NJ95) for mounting

the Universal wall plate to the wall or office cubicle in UK.

■

M2.4x8mm security screw (1 per NJ95) for securing the

NJ95 Main unit to the Universal wall plate.

■

RJ-45 Male to Female coupler cable (1 per NJ95) for

connecting the NJ95 Main unit to the Network Ethernet

cable (required only in special circumstances, if your

network cable is terminated with a female RJ-45

connector).

■

Installation guide (1 per package).

For “Optional Components” – which maybe useful for some

special installations – see Appendix E.

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2. NJ95 Description

The following diagram shows the front view of the NJ95 and

both the Universal (2a) and Manufacturer Specific (2b) wall

plates. (see descriptions below)

Figure 1: NJ95 Feature Description

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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 Manufacturer-

Specific 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. One of the

connectors would serve to connect the switched

ports to the Network.

The second connector referred to as an optional

port bypasses the functionality of the switch.

Allows connection to a separate network segment

or to an analog or digital PBX telephone network

3 LEDs Indicates network connection status.

Indicates NJ95 power status.

4 Power Socket NJ95 can be powered from a local power supply

(available for purchase from 3Com); required if

your network does not support Power Over

Ethernet (PoE).

davinci_gde.book Page 4 Thursday, December 26, 2002 4:52 P

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