3COM 3CNJ205 User Manual

User Guide

NJ205 IntelliJack

3CNJ205
4-port 10/100 Mbps Managed
Ethernet Switch

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

Published July 2003
User guide version 1.0

3Com Corporation n 5500 Great America Pkwy n
Santa Clara, California n 95052-8145 n U.S.A.

Copyright © 2003 3Com Corporation. All rights reserved. No part of this
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without written permission from 3Com Corporation.

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Contents

About the NJ205 IntelliJack 1

Package Contents 3
NJ205 Description 5

Installing the IntelliJack 7

Setting up the Power Supply 7
Mounting the IntelliJack 8
Connecting Devices to the IntelliJack 10
Checking the LEDs 11

Installing the Configuration Managers 13

System Requirements 14
Installing the Local and Central Configuration
Managers 14

Using the Local Configuration Manager 21

Initializing the NJ205 IntelliJack 21
Setting Advanced Options 25
Discovering NJ205 Devices on Your Network 27

Using the Central Configuration Manager 27

Viewing Device Properties 33
Changing Device Configuration 39
Finding Computers Connected to NJ205 Devices 49
Upgrading the NJ205 Firmware 51

Contents

Specifications 57
Default Settings 61
Optional Components 63

Power Supplies and IP Phone Power Module 63
Mounting Plates and Spacers 64

Power Options 65

Using an Integrated Switch with Power Over Ethernet 66
Using Ethernet Multi-port Midspan Power Supply 67
Using a Single-port Ethernet Power Supply 69
Using the 3Com Local Power Supply 70

Installation Planning 73
Troubleshooting 75

Troubleshooting Matrix 76
One-Year Free Installation Support 79
Online Technical Services 79

Technical Support 79

Support from Your Network Supplier 81
Support from 3Com 82
Returning Products for Repair 82
3Com Corporation Limited Warranty 83

Limited Warranty and Regulatory Compliance Information

1

The 3Com NJ205 is part of the IntelliJack family of products that
provides connectivity at the edge of the network infrastructure.

The NJ205 IntelliJack is a 4-port, un-managed Fast Ethernet
switch that fits into most standard data port openings.

The NJ205 IntelliJack quadruples port connections where a single
port (and cable) already exists in the wall. Expanding port
connections with the 3Com IntelliJack is a less expensive and less
disruptive alternative to running additional cabling. Also, the
3Com IntelliJack is installed in the wall, making it more secure
and out of the way than deploying a remote desktop switch.

The NJ205 IntelliJack 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. A pass-through port is provided that allows an additional
device to be connected to a separate network segment through
the same IntelliJack.

All ports feature 10/100 Mbps auto-negotiation, which
configures the NJ205 IntelliJack for 10 Mbps or 100 Mbps
connections automatically.

The NJ205 needs no software to operate and no configuration.
However, to modify the default configuration and utilize the
advanced feature we have provided a configuration manager
software suite on compact disk.

A b o u t t h e N J 2 0 5 IntelliJack

1

About the NJ205 IntelliJack

You can manage the NJ205 IntelliJack using the included
Central Configuration Manager. You can also use a supported
SNMP management console as you would with any managed
device on your network, but greater management and control is
available through the Configuration Manager software.
Management features include:

■ Device discovery

■ Port status (state, duplex, speed)

■ Statistics

■ Port control (port state, flow control, AutoMDI(X),

multicast limit)

■ QoS/Priority

■ Port-based VLAN

■ VLAN tag add/remove

■ Firmware upgrade

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

2

Packa ge Cont ents

Pack a ge Con tents

The NJ205 IntelliJack is available in single- and 20-packs. Before
installation, familiarize yourself with the following items, which
are included with the NJ205:

1 NJ205 IntelliJack.

2 Four pairs of M3. 5mm screws (two per IntelliJack) for

mounting the IntelliJack to the wall, floor box or office cubicle.

3 M ounting plate (face plate).

1

2

3

4

3

1

2

3

About the NJ205 IntelliJack

Additionally, the following items are shipped with the single
pack:

■ Compact disc containing

■ User Guide and additional informational documents.

■ Configuration Manager software.

All screws are phillips pa n head type scr ews. The ty pe of thr eads
vary to match the different mounting locations compatible with
the IntelliJack.

■ Thread forming screws for mounting into plastic:

■ M3 x 30mm (2x)

■ M3 x 40mm (2x)

■ Machine screws for mounting into metal:

■ M3.5 x 50mm (2x)

■ M3.5 x 740mm (2x)

For more information on optional components, see Appendix C,
“Optional Components”.

4

NJ205 Description

NJ205 Description

The following diagram shows the front, rear and bottom views
of the IntelliJack:

1 RJ-45 switched

PAN (personal
area network)
ports

2 Port LEDs and

corresponding
port numbers

3 RJ-45 LED Indicates the status of the LAN connection

Four 10/100 Mbps auto-negotiation ports,
which the NJ205 configures for 10 Mbps or
100 Mbps connections automatically (green
LEDs).

Indicate network status of each of the four
RJ-45 PAN ports.

(white cable, green LED). For more
information, see “Checking the LEDs” on
page 11.

5

Abo ut the NJ 205 Int elliJack

4 Power LE D

5 Pass-through

port

6 Power-

forwarding LED

Indicates NJ205 p ower status (gr een). For
more information, see “Checking the LEDs”
on page 11.

Provides an independent connection to your

LAN that passes through the NJ205 IntelliJack.

The data or voice traffic is separate from and
unaffected by the NJ205 switch.

Lights when the IntelliJack is connected to

and forwar ding power to an IEEE 802.3af

compliant device. For more information, see
“Chec king the LEDs” on page 11.

7 Local power

supply cable
strain relief

8 Power Socket The NJ205 can be p owered from a local

Local power supply cable strain relief.

power supply (available for purchase from
3Com). This is required if your network does
not support Power over Ethernet (PoE).

Main Unit Connects the NJ2 05 switched RJ-45 ports to

9

LAN cable
(white)

the Ethernet LAN. Ma ke sure the port on the

network switch to whic h the NJ205 is
connected is configured as a standard MDI-X
port.

Pass-through

10

LAN cable

(Black)

Connects your pass-through port directly
to the Ethernet LAN. No LED

6

2

Installing the NJ205 IntelliJack consists of the following steps:

1 Set up the power supply.
2 Mount the NJ205 to the wall outlet box.
3 Connect devices to the NJ205.
4 Check the NJ205 LEDs.

Installing the IntelliJack

Setting up the Power Supply

Power to the IntelliJack is provided thr ough one of the following
methods:

■ Over the network via an integrated switch that supports

Power Over Ethernet.

■ Over the network via an Ethernet multi-port endspan power

supply.

■ Over the network via a single-port Ethernet power supply.

■ Locally via a 3Com local power supply.

NOTE: Power Over Ethernet, also known as in-line
power , is a method to pr ovide power to equ ipment over
an Ethernet cable, allowing a device to receive both data
and power from the same network cable. The NJ205 is
ideally powered by a switch that is IEEE 802.3af­compliant. The NJ205 can also be powered by some
switches that are not 802.3af-comp liant. Consul t the
3Com web site for more information.

7

Installing the IntelliJack

Before you begin installation, dete rmine which type of power
supply the IntelliJack will use. For more information on power
options and configuration, see Appendix D, “Power Options”.

Mounting the IntelliJack

The IntelliJack mounts in any standard British Standard Institute
(BSI): BS 4664:1970 (1986) single cubicle opening or wall outlet.

8

M ounting t he Inte lliJa ck

Before connecting the IntelliJack to the network, verify that the
existing network cabling meets the ANSI/TIA/EIA-568 standard
and that the port in the wiring closet is connected to an active
Ethernet MDI-X port.

1 Thread both IntelliJack LAN cables through the opening in

the mounting plate.

2 Connect the wiring as illustrated on page 8.

The IntelliJack has two Ethernet cables each terminated
with a male RJ-45 connector.

 The white cable connects the LAN to the four personal

area network (PAN) ports located on the bottom of the
IntelliJack.

 The black cable connects the LAN to the single pass-

through port located on the front of the IntelliJack.

3 C hoose one pair of the provided screws that best fits your

outlet box.

4 Tighten the screws while holding the IntelliJack in place.

NO TE: The IntelliJack is designed to be mounted
using the provided mounting plate or many after­market faceplates. However, some after-market
faceplates stand out from the wall and do not
provide a secure mounting surf ace for the IntelliJack.
In such cases it is recommended to place the 3C om
spacer between the IntelliJack and the after-market
face plate. For more information on the different
mounting plates and spacers, see Appendix B.

9

Insta llin g th e Int elli Jack

Conne cting Devices to the IntelliJack

Once the power source and the data source have been verified in
good working order and the IntelliJack has been installed and

mounted, connect your networking devices (such as computers,
printers, IP phones, cameras, etc. ) to the IntelliJack.

The IntelliJack has two ways to connect devices:

1 RJ-45 Personal A rea Network (PAN) Ports — any of the four

switched po rts on the bottom of the IntelliJack . A ll ports f eature

10/100 Mbps auto-negotiation, which configures the NJ205

IntelliJack for 10 Mbps or 100 M bps connections automatically.

2 Pass-through port—a single pass-through port is provided

that allows an additional device to be connected to a
separate network segment through the same IntelliJack. The
data or voice traffic that travels through the pass-through
port, passes through the IntelliJack without being switched.

1

2

3

4

10

Che cking the LEDs

Checking the LED s

You can verify the IntelliJack installation by checking the LEDs.

LED Descript ion

 On—the IntelliJack is connected to the network

and a link has been established.

 Off—there is no connection to the network.

(LAN)

 On—the IntelliJack is receiving power (local or

via the network). W hen you first connect power
to the IntelliJack, there is a delay of

(Power)

(Power-

forwarding)

CA UTIO N: Make sure the wiring closet port
connected to the IntelliJack white cable is
configured as a standard M DI-X port.

approximately 5 seconds. The power LED light
blinks once or tw ice before remaining solid on.

 Off—the IntelliJack is not receiving power.

 On—the IntelliJack is connected to and is

forw arding power to an IEEE 802. 3af-compliant
device.

 Off—the IntelliJack is not connected to or is not

forw arding power to an IEEE 802. 3af-compliant
device.

11

Installing the IntelliJack

12

Installing the

3

Once you have installed the NJ205 hardware, you need to
configure it for use on your particular network. To configure the
NJ205, install the Local and Central Configuration Managers.

NOTE: You will use the Local Configuration
Manager for initial configuration of the NJ205
on your network. It is usually easiest if you load
this software on a laptop and use it to configur e
NJ205 devices as you install them.

The NJ205 Central Configuration Manager is
used for advanced configuration and
management of one or more NJ205 devices on
your network. This software should be installed
on the machine you plan to use to manage your
NJ205 devices from a remote location—perhaps
the same console you use for SNMP
management.

Configuration Managers

13

Installing the Configuration Managers

System Requirements

The machine you install the software on should meet the
following requirements:

■ Pentium processor

■ Minimum of 15MB disk space

■ Windows 2000 or Windows NT 4.0 with Service Pack 6

installed (Windows 95 and Windows 98 are not
recommended operating systems for use with management
platforms. In most cases, the Configuration Manager
software will work with Windows 95, 98, or XP. However,
please check 3Com’s web site for additional information
regarding XP support)

Installing the Local and Central Configuration
Managers

To install the Configuration Manager software:

1 Insert the Configuration Manager software CD into your

Windows 2000 or Windows NT computer.

2 If your computer is configured to Auto-Play CDs, the

installation will start automatically. If not, double-click the
setup.exe icon on the CD, and you will see this window:

14

Installing the Local and Central Configuration Managers

3 Click Next to continue.
4 Carefully read the license agreement. If you agree, click

“Yes, I accept” and Next to continue.

5 Enter your user and organization names and click Next.

15

Installing the Configuration Managers

6 The program files will be installed in the directory

C:\Program Files\3Com\IntelliJack. If you want to change
the location of the installation, click Change. Otherwise
click Next to accept the default location and continue.

16

Installing the Local and Central Configuration Managers

7 Select a typical or custom setup and click Next. The Typical

installation will install both the Lo ca l Con figuration
Manager and the Central Configuration Manager on your
system. The Custom installation option lets you install just
one of the programs if you wish.

17

Installing the Configuration Managers

8 Review the settings you selected and click the Install button.

18

Installing the Local and Central Configuration Managers

9 When the installation has completed, click the Finish button

to close the installation utility.
The installation utility creates two shortcut icons on the

Desktop--one for the Local Configuration Manager and one
for the Central Configuration Manager.

You can also launch the programs from a program group
you can access from the Start menu. The program group
folder is labeled 3Com IntelliJack and can be found under
the Programs menu.

19

Installing the Configuration Managers

20

Using the Local

4

Initializing the NJ205 IntelliJack

Once you have installed the NJ205 hardware on your network
and the Local Configuration Manager software on your
computer, you need to perform an initial configuration of the
IntelliJack.

1 Connect your computer to the NJ205 that you are

installing. Attach an Ethernet cable from a computer
running the Local Configuration Manager software to any
one of the four personal area network (PAN) ports on the
front of the NJ205.

2 Click on the desktop shortcut icon labeled NJ205 Local

Config Mgr to start the program. When i t launches, you will
see a window like this:

Configuration Manager

21

Using the Local Configuration Manager

3 The MAC address and default IP address of the currently

connected NJ205 will appear in the first field. If you connect
to another NJ205, you must click the Query button to
refresh the window.

If you are not connected to any IntelliJack, the field will
display the message Not Connected. If the Not Connected
message appears, check your connection to the IntelliJack
and click the Query button.

4 Make sure the General tab is selected.

22

Initializing the NJ205 IntelliJack

5 Enter Location Information for the particular NJ205 you are

configuring. This field can help you and other network
managers identify this IntelliJack in the future. You may
enter any information you like (up to 256 characters), but
we recommend that you enter a logical, easy to follow
description, such as “Building A, 3rd floor, room 315, West
wall.”

6 Enter a Group Name for this IntelliJack. This can be any

name you wish. With the Central Configuration Manager,
you can perform management tasks on all IntelliJacks with
the same group designation.

7 Select the method the NJ205 should use to obtain an IP

address. The NJ205 can either get an IP address from an
existing DHCP server on your network or you can directly
specify the address. If you elect to specify your own
address, you should enter the IP Address, Subnet Mask, and
Default Gateway information in the appropriate fields.

NOTE: By default, the NJ205 is configured to
automatically obtain an IP address from a DHCP
server. If no DHCP server exists, or if the NJ205
cannot obtain an IP address, it will default to
the IP address 192.168.1.252.

23

Using the Local Configuration Manager

8 If you wish, check the box next to Lock IP Address. Selecting

this option will ensure that the IntelliJack will always use a
particular address.

WARNING: If you lock an IP address and
reserve it for this IntelliJack, make sure you
configure your DHCP server so it won’t
distribute that address to other devices.

9 Click the Configure button and the Local Configuration

Manager will ask you to enter the password for the device.
If you haven’t changed the password, you should enter the
default password, which is “password” (without the
quotes). Your changes are sent to the NJ205 and will
become effective immediately.

Those are the only steps required to initialize your NJ205
IntelliJack.

24

Setting Advanced Options

Setting Advanced Options

If you want to change the default password of the NJ205 or
manage it from an SNMP console, you can configure these
settings from either the Local Configuration Manager or the
Central Configuration Manager (covered in the next chapter). In
the Local Configuration Manager, both settings are found under
the Advanced tab.

1 Select the Advanced tab on the NJ205 Local Configuration

Manager window.

25

Using the Local Configuration Manager

2 To change the IntelliJack’s configuration password, click on

the box next to Change NJ Password. Then enter the new
password in both password fields. (You must enter the
password twice to ensure you entered it correctly.) The
password you select can be any combination of letters and
numbers between 8 and 32 characters.

3 To configure the NJ205 for management with an SNMP

console, select the SNMP Configuration box. Enter the GET
Community String and SET Community String in the
appropriate fields. Each field lets you enter any combination
of letters and numbers up to 32 characters.

4 Click the Configure button and the Local Configuration

Manager will ask you to enter the password for the device.
If you haven’t changed the password, you should enter the
default password, which is “password” (without the
quotes). Your changes are sent to the NJ205 and will
become effective immediately.

NOTE: You should change the password to
ensure that no one else can re-configure your
system. Make sure you remember the new
password you set. If you forget the new

password, you will not be able to perform
any other configuration tasks unless you
send the device back to 3Com.

26

Using the Central

5

You should use the Local Configuration Manager to initialize
each of the NJ205 IntelliJacks installed on your network. Once
you have completed that step, you can manage all of them with
the Central Configuration Manager.

Install this program on any computer on your network you want
to use as a central management console. (See the previous
chapter, “Installing the Configuration Managers,” for help). You
can use the same machine that has your SNMP-based
management platform. The Central Configuration Manager will
be able to configure and manage all of the Intell iJacks that r eside
on your network.

Discovering NJ205 Devices on Your Network

In order to manage the NJ205 IntelliJacks on your network, the
Central Configuration Manager needs to include them in its
database. The easiest way to add new NJ205 IntelliJacks to the
database is to use the device discovery tool included in the
Central Configuration Manager. The first time you run the
Central Configuration Manager, it will automatically take you to
the Discovery window as shown under step one below.

Configuration Manager

27

Using the Central Configuration Manager

To discover devices on your network, run the following steps:

1 Open the Central Configuration Manager by double-

clicking on the NJ205 Central Config Mgr desktop icon.
When it launches, you will see a window similar to this one:

28

Discovering NJ205 Devices on Your Network

2 Select Discovery from the Devices menu. The following

window appears:

NOTE: The default subnets are the ones your
machine is connected to.

3 You can discover new devices based on a specific subnet or

on a specific range of IP addresses.
a To discover devices by subnet, select that option on the

screen. Click the Add button to add a new subnet to the
discovery list. The following box appears:

29

Using the Central Configuration Manager

b Fill in the Subnet and Mask fields and click OK.

or

c To discover devices within a certain IP range, select that

option on the screen and complete the From and To
fields.

4 If the box next to “Delete all devices in the existing list” is

checked, the discovery process will r eplace all of the devices
in your current database with the new devices it discovers.
If unchecked, the discovery process will add newly
discovered devices to the current database.

5 Click OK to start the discovery process.

30

Discovering NJ205 Devices on Your Network

The device discovery tool will return the following information
from the NJ205 IntelliJacks on your network:

■ IP address

■ MAC address

■ Subnet address

■ Group Name

■ Location information

■ Firmware version

You can sort this information in ascending or descending order.

NOTE: Discovered devices are automatically
added to the default database. This default
database opens automatically when you launch
the Central Configuration Manager. If you like,
you can keep several database files, each with
its own list of devices. For example, you may
want a separate database for each subnet you
manage. To save a database file or open
another database file, select the Open Database
or Save Database As options from the File
menu.

You can view discovered devices many ways. On the left side of
the window, under the toolbar, you can see a drop down box
with options for either Subnet, Firmware Version, or Group
Name. The option you select in this box determines how the
views are displayed in the left pane of the window.

31

Using the Central Configuration Manager

When Subnet is selected (the default option), you will see a list
of IP subnets to choose from. Selecting Network will show all of
the discovered devices in the database. If you select a particular
subnet, only the devices in that subnet will be displayed.

When Firmware V er is selected, you wil l see a li st of the dif f er ent
firmware versions loaded on the devi ces. This view is particularly
useful if you want to select only the devices with an old firmwar e
version so you can perform an upgrade.

When you select Group Name from the drop down list, the
Central Configuration Manager will present a list of the differ ent
group names you have specified.

32

Viewing Device Properties

Viewing Device Properties

Once the database is populated with NJ205 IntelliJacks on your
network, you can begin to manage those devices. The main
window of the Central Configuration Manager shows a list of
devices in the current database with the information retrieved
during the discovery process. You can view and configure the
properties for a single NJ205 using this window. To configure
multiple devices at one time, see ““Changing Device
Configuration” on page 39. To get more detailed information
about a device, you should check its properties:

1 Select a IntelliJack from the devices list.
2 Select Property from the Devices menu or from the toolbar.

You can also open this window by right-clicking your
mouse and selecting Property.

33

Using the Central Configuration Manager

3 With the General tab selected, you can view and edit

information about the device such as the IP address, subnet
mask, default gateway, and whether it uses a static IP
address or gets its address from a DHCP server. You can
also view and edit the IntelliJack’s Group Name and
Location information.

4 Click Apply to save any changes you make to the fields in

this window.

34

Viewing Device Properties

5 In the middle of this window you’ll see information about

each of the four PAN ports on the front of the IntelliJack.
You can check to see if the port is Enabled or Disabled, if
there is a network link, whether or not it’s running at half
or full duplex, what speed it’s set for, its priority, and
whether or not it’s part of a virtual network (VLAN).

6 Under the Product Info box, you can see the current

firmware version of the IntelliJack, the Product Name, and
the Serial Number.

7 Click on the Hardware Settings tab to view status

information about the switch.

35

Using the Central Configuration Manager

Several fields in this window can be edited, a few cannot.
You can change the values of the fields with drop-down
lists: Priority Schedule Policy, LAN Port Egress Mode, LAN
Port Ingress Mode, Max Frame Size, Counter Mode, and
Power Forwarding.

8 Simply select the value you wish to change from the drop-

down list of options.

36

NOTE: You can click Apply at any time to save
the changes you have made. But be sure to cli ck
Apply after you have finished making all your
changes.

9 Click on the Statistics tab.

Viewing Device Properties

37

Using the Central Configuration Manager

From this view you can see statistics about the number of
good or bad packets each port has received and
transmitted, based on how you have configured the
Counter Mode setting.

You can reset all counters to zero by clicking Clear.

10 Click on the SNMP Settings tab to see the following

window:

38

Changing Device Configuration

You can view and edit the SNMP Common Settings and
Trap Settings for this particular NJ205.

11 Click Apply to save any changes you make and a

configuration summary dia l og box will appear. Verify the
information and click OK.

12 Click Exit to close the Device Property window.

Changing Device Configuration

Many of the properties that you can view from the Device
Property windows can be changed from the Device
Configuration window. Here’s how to use this feature:

1 Select one or more IntelliJacks from the devices list.

NOTE: It is possible to configure multiple

IntelliJacks at the same time.

2 Select Configuration from the Devices me nu or th e too lb a r

or right click on a device and select Configuration from the
pop-up menu.

39

Using the Central Configuration Manager

This window has six tabs across the top--General, Priority,
VLAN, Security, SNMP Traps, and Advanced. Check the box
next to any setting you want to change from within these
six areas.

3 Select the General tab.
4 To change or set the Group Name, check the box next to

that field. Y ou can set a Gr oup Name to anything you want,
up to 256 characters.

5 Change or set the Location Name by checking the box next

to that field and entering up to 256 characters.

6 Configure the DHCP setting to the desired state.

40

Changing Device Configuration

7 Change the Port and Link states of any of the IntelliJack’s

ports by checking the box next to the characteristic you
want to modify and selecting a value from the drop list.

8 By default, the Central Configuration Manager will displa y a

count of good transmissions in the Property window. If you
would rather track errors and collisions, select th at option in
the Counter Mode setting.

9 Click the Priority tab along the top of the Device

Configuration window to view these settings:

41

Using the Central Configuration Manager

10 From this screen you can change the Look Up Scheme and

Default Priority Level of each port on the NJ205 and the
Priority Scheduling Policy of the IntelliJack itself. Check the
box next to the setting you want to change and select an
option from the drop-down list.

11 Click the VLAN tab to configure your IntelliJack for use in a

virtual LAN.

12 From this window you can associate any of the four ports

with any other ports on this IntelliJack to form a VLAN
group. You can specify the tag schemes for the VLAN you
create.

42

Changing Device Configuration

.

NOTE: VLAN stands for Virtual Local Area
Network. VLANS are used to create a subgroup
of systems within a LAN in order to isolate
traffic between network devices. The NJ205
supports VLAN tagging, but does not route
inbound traffic on a per-port basis.

If you change your VLAN settings, they should
be consistent with your network’s VLAN
settings.

13 Select the Security tab to set the security options of the

NJ205 IntelliJack.

43

Using the Central Configuration Manager

14 You can change the device password (the default password

is “password”), and adjust the SNMP Set permissions and
Community Strings.

15 Click the SNMP Traps tab to change the trap settings of the

NJ205.

16 From this window you can enable or disable the device’s

Cold Start, Link Down, Link Up, and Authorization Fail traps
to be sent to your SNMP console.

44

Changing Device Configuration

17 Select the Advanced tab for this window:

18 You can change the Max Frame Size and Power Forward

settings by selecting an option from the drop-down list.

19 From this window, you can see another set of tabs, one for

each port on the IntelliJack. Click on the port whose
settings you want to change, check the box next to the
setting to be changed, and select a valu e from the drop­down list. You can change the Flow Control, the
AutoMDI(X) crossover capabilities, and the Multicast Rate
Limit.

45

Using the Central Configuration Manager

20 At the bottom of this window is an option to restore some

of the configuration settings to their default values. If you
check this box, the following settings will be restored:

Global Setting Default Value

Max Frame Size 1518 or 1522 if tagged
Counter Mode Count good frames
Priority Scheduling Mode 8, 4, 2, 1 weighted
VLAN Tag for LAN Port (egress) Egress frame unmodified
VLAN Tag for LAN Port

(ingress)

Ingress frame unmodified

Power Forward Auto detection
SNMP “Set” Permission Not allowed

Port Setting Default Value

State Forwarding
Link Auto negotiation
Flow Control Off
MDI[X] Force MDI
Multicast Limit 3%
Priority Lookup Tag & IPV4
Port Priority 1
VLAN ID 1
Port based VLAN All ports on same VLAN

46

Changing Device Configuration

The values that remain unchanged when you click Restor e
Factory Default Settings are:

■ Group Name

■ Location ID

■ Password

■ IP Address

■ DHCP Settings

■ SNMP Community Strings

■ SNMP Trap Settings

21 When you are finished entering the configuration changes

to your NJ205 IntelliJack, click the OK button and a
Configuration Progress dialog box will appear. If you don’t
want to apply the changes you made, click Exit to discard
those changes and exit the window.

47

Using the Central Configuration Manager

22 If you click Configuration Summary, you will see a summary

of all the changes you have made. Enter your password and
click Start. As the IntelliJacks are configured, their status will
be updated in the Status column.

NOTE: If a NJ205 IntelliJack that was once
discovered by the Central Configuration Manager is
no longer connected to your network or if you just
want to remove a device from the current database,
you can select Delete Device from the Devices menu.

48

Finding Computers Connected to NJ205 Devices

Finding Computers Connected to NJ205 Devices

Occasionally you may need to find out which IntelliJack a
networked device, such as a PC, is connected to. This is one of
the many situations where the Location Information field of the
NJ205 can be very useful.

If you know the IP address or MAC address of the computer or
networked device, you can use the Central Configuration
Manager to find the right IntelliJack.

1 Select Find Location from the Tools menu. You will see a

window like this:

2 Enter the IP address or the MAC address of the network

device you wish to find.

3 Click the Find button.

49

Using the Central Configuration Manager

When the search is complete, the Search Results field will
display the IP address of the NJ205 that the network device
is connected to. It will also show the Location Name
assigned to the IntelliJack and which PAN port the network
device is using.

4 Click OK to close the window.

50

Upgrading the NJ205 Firmware

Upgrading the NJ205 Firmware

You can upgrade the firmware on your NJ205 devices over the
network from the Central Configuration Manager. To do so,
follow these steps:

1 Select one or more IntelliJacks you want to upgrade. You

can select groups of IntelliJacks using one of the grouping
options available to you in the drop-down list at the top l eft
corner of the main window.

2 Select Upgrade from the devices menu. A window like this

will appear:

3 Select Yes to continue the upgrade operation. A window

like this will appear:

51

Using the Central Configuration Manager

4 Select a valid firmware image by typing the path to the file

or by using the Browse button.

5 Select the time to perform the upgrade. You can either

send the update file immediately or select a specific time
and date to send the file. Yo u may, for example, want to
perform an upgrade during off hours such as a weekend.

6 Click Next and a window like this will appear:

52

Upgrading the NJ205 Firmware

7 Review the list of IntelliJacks you want to upgrade. If you

want to modify this list, click Cancel and restart the
firmware upgrade procedure.

53

Using the Central Configuration Manager

8 Type your password in the Password field, then click Finish.

The Upgrade Progress dialog box will appear.

54

Upgrading the NJ205 Firmware

Viewing Log Files

The Central Configuration Manager create s a log file with detail s
of the firmware upgrade operation. This file is in the Central
Configurator\Log subdirectory under the directory where you
installed the IntelliJack configuration software. You can also view
a history of firmware upgrades by selecting Log History from the
View menu. A window like this will appear:

To view the details of a particular log, select it and click Detail. If
the firmware upgrade of an NJ205 unit fails for some reason, a
message will appear in the upgrade progress dialog box and the
log file. Consult the troubleshooting guide on page 75 for more
information.

55

Using the Central Configuration Manager

Viewing and Canceling Scheduled Firmware Upgrades

You can select a time and date to send an upgraded firmware
image to the IntelliJacks in your network. To view and make
changes to the firmware upgrades you have scheduled, follow
these steps:

1 Select Scheduled Upgrade from the View menu. A window

like this will appear:

2 To view the details of a scheduled upgrade, select it from

the list and click Show Devices. To cancel a scheduled
upgrade, select it from the list and click Delete.

56

A

Hardware

Power consumption <3.5 watts without power forwarding

Network Interface
10 Mbps Ethernet

10BASE-T

100 Mbps Ethernet
100BASE-TX

Specifications

Maximum 11 watts with power forwarding
(depending on the device drawing power)

Ethernet IEEE 802.3 industry standard for a
10 Mbps baseband CSMA/CD local area
network

Ethernet IEEE 802.3u industry standard for
a 100 Mbps baseband CSMA/CD local area
network

57

Specifications

Performance

Auto-negotiation Communication speed (10 Mbps or

100 Mbps) and duplex mode (full or half)
can be determined through auto­negotiation with the attached devices. The
IntelliJack attempts to negotiate the fastest
connection possible (100 Mbps full­duplex).

The communication speed and duplex
mode can also be controlled using the
configuration management software.

Environment

Operating temperature 32° to 104° F (0° to 40° C)
Storage temperature -22° to 194° F (-30°- to 90° C)
Operating humidity 10-90% noncondensing
Storage humidity 10-90% noncondensing
Operating Altitude 8,000 ft. max
Storage Altitude 20,000 ft. max

Standards Conformance

IEEE 802.3 10BASE-T, 100BASE-TX and auto-negotiation
Power Over Ethernet IEEE 802.3af
Power forwarding of 7 watts, 48 volts from port number 4

58

Fea tur es

Power Over Ethernet Compatible with IEEE 802.3 af

Local power supply Required for netw orks that do not support

Power Over Ethernet

Voice Over IP (VoIP) Compatible with VoIP.

Power forw arding Power forwarding Port number 4 can be

used with any standard networking device
as w ell as to power a device such as a VoIP
telephone on a network that uses IEEE
802 .3af-compatible Power Over Ethernet.

59

Specifications

60

B

Global Setting Default Value

Max Frame Size 1518 or 1522 if tagged
Counter Mode Count good frames

Priority Scheduling Mode 8, 4, 2, 1 weighted

VLAN Tag for LAN Port
(egress)

VLAN Tag for LAN Port
(ingress)

Power Forward Auto detection
SNMP “Set” Permission Not allowed

Port Setting Default Value

State Forwarding
Link Auto negotiation
Flow Control Off
MDI[X] Force MDI
Multicast Limit 3%
Priority Lookup Tag & IPV4

Default Settings

Egress frame unmodified

Ingress frame unmodified

61

Default Settings

Port Setting Default Value

Port Priority 1
VLAN ID 1
Port based VLAN All ports on same VLAN

The values that remain unchanged when you click Restore
Factory Default Settings are:

■ Group Name

■ Location ID

■ Password

■ IP Address

■ DHCP Settings

■ SNMP Community Strings

■ SNMP Trap Settings

62

C

The IntelliJack w orks w ith the following optional components, all
of which are available from 3Com (order online at
www.3com.com).

Optional Components

Pow er Supplies and IP Phone Pow er M o dule

Compon ent Purpose 3C Num ber (s)

Ethernet Multi-port
Endspan Power
Supply

Ethernet Multi-port
Midspan Power
Supply

Single-port
Ethernet power
supply

Local power supply For locally powering a single

NBX Phone Power
Module

For providing Power Over
Ethernet to power up to 2 4
IntelliJacks.

802 .3af -compliant

switch

For providing Power Over
Ethernet to power up to 2 4
IntelliJack devices.

802 .3af -compliant

For providing Power Over
Ethernet to locally power a
single IntelliJack.

IntelliJack; required if your
network does not support
Power Over Ethernet.

For powering over Ethernet a
NBX VoIP telephone that uses
Capacitive Power Discovery
Process by an IEEE 802. 3af
compliant PSE.

integrated

3C 17205

3C NJPSE24

3C NJPSE

3C NJPSL

3C NJVOIP­NBX

63

Optional Components

Mounting Plates and Spacers

3Com Part
Number Description

3CNJMP-EXT 10 mm-thick extension ring used to add depth to

3CNJMPD-UK Mounting plate that enables the installation of

3CNJMP-FLR Mounting plate that enables the installation of

3CNJMP-SPR Mounting plate used to securely install an NJ105

3CNJMP-FR Mounting plate that enables the installation of

wall outlet openings when installing an NJ105 or
NJ205 IntelliJack.

the NJ105 and NJ205 IntelliJack devices in a UK­style two- or double-gang box.

the NJ105 or NJ205 IntelliJack in a “floor box.”

or NJ205 IntelliJack in wall openings with built-in
trim rings, as found in Spain and other locations.

the NJ105 or NJ205 IntelliJack in a French-style
raceway (locally called “goullot”).

64

D

The 3CNJ205 IntelliJack is compliant with the following power
options:

 IEEE 802. 3af PSE (Power Source Equipment)

3C om SuperStack 3 Switch 440 0 PW R (3C17205)



3C om Power over Ethernet M ultiport Midspan
3C om Power over Ethernet Single-port Midspan (3C NJPSE)



3C om IntelliJack AC Power Supply (3C NJPSL)





Before you begin the installation, determine which type of
power supply the IntelliJack will use.

NO TE: For additional information on power
supplies that support the IntelliJack, go to
www.3com.com/.

CA UTIO N: Use only a power supply that is
provided or approved by 3 C om with the
IntelliJack. Failure to do so ma y result in damage
to the IntelliJack, or may result in a hazardous
situation or personal injury.

Pow er Options

(3C NJPSE24)

65

Power Options

Using an Integrated Switch with Power Over
Ethernet

To use Power Over Ethernet, you must have a switch on the
network that has Power Over Ethernet integrated into it.

Connect the network data/power cable to the IntelliJack white
cable, as shown in the following illustration.

NOTE: The black cable can also be connected to
an Ethernet multi-port midspan power supply
and will power a PoE compatible device
connected to the pass-through port on the
IntelliJack, but it will not provide power to the
IntelliJack.

66

Using Ethernet Multi-port Midspan Power Supply

Using Ethernet Multi-port Midspan Power Supply

To use an Ethernet multi-port midspan power supply, you must
connect the power supply to your network, as shown in the
illustration on page 68.

The Ethernet multi-port midspan power supply from 3Com
connects to an existing Ethernet or Fast Ethernet infr astructure
with standard Category 5 or better cabli ng, and powers up to 24
IntelliJack devices. For complete installation instructions, see the
Ethernet multi-port midspan power supply documentation
located at www.3Com.com.

Connect the network data/voice/power cable to the IntelliJack
white cable.

Connect the network second data/voice/power cable (if
available) to the IntelliJack black cable.

67

Power Options

NOTE: The black cable can also be connected to
Ethernet multi-port midspan power supply and
will power a PoE compatible device connected
to the pass-through port on the IntelliJack, but
it will not provide power to the IntelliJack.

68

Using a Single-port Ethernet Power Supply

Using a Single-port Ethernet Power Supply

To use a single-port Ethernet powe r su pp ly, connect the power
supply to the network hub or switch and to the IntelliJack white
cable, as shown in the following illustration. The black cable
should be connected to a data port on the wire closet switch.

69

Power Options

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 endspan power supply,
you must purchase a local power supply fr om 3Com. See
Appendix C "Obtaining Optional Components".

To power the IntelliJack with a local power supply, make sure
you have an electrical outlet near the site where the IntelliJack
will be installed.

70

Using the 3Com Local Power Supply

To connect the local power supply to the IntelliJack, follow these
steps (as shown in the previous diagram):

1 Route the power cable through the strain relief on the top

of the IntelliJack.

2 Plug the power cable into the IntelliJack.
3 Check to ensure that the cable is secure in the strain relief.
4 Route the cable behind the trim ring from top to bottom.
5 Secure the local power supply and cable to the wall.
6 Plug the local power supply into the power source.

WARNING: Only use the local power supply

available from 3Com. Failure to d o so may result
in damage to the IntelliJack, or may result in a
hazardous situation.

71

Power Options

72

E

Make sure the wall or cubicle opening where the IntelliJack is
being installed complies with the British Standard Institute (BSI):
BS 4664:1970 (1986) standard, as described below.

Make sure the distance between the back of the IntelliJack and
the inside of the wall or cubicle opening is at least 30mm to
maintain an acceptable bend radius on the cable.

Installation Planning

73

Installation Planning

WARNING: The NJ205 is designed to be
mounted using the provided mounting plate or
many after-market faceplates. However, some
after-market faceplates stand out from the wall
and do not provide a secure mounting surface
for the IntelliJack. In such cases, it is
recommended to place the 3Com spacer
between the IntelliJack and the after-market
face plate.

To ensure proper horizontal cabling functionality, adhere to the
following standards during installation:

■ ANSI/TIA/EIA-568

Commercial Building Telecommunications Cabling Standard

■ ANSI/TIA/EIA-569

Commercial Building Standard for Telecommunications
Pathways and Spaces

■ BRITISH STANDARD INSTITUTE (BSI): BS 4664:1970 (1986)

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. Be sure to
adhere to local safety and regulatory codes during
the cable installation.

74

F

If you encounter problems with the NJ205 IntelliJack:

■ Verify the IntelliJack is receiving power by viewing the

Power LED (it should be on). If the Power LED is not on,
make sure that:

■ (If using Power Over Ethernet) the other end of the

network cable is plugged into a switch on the network
that has Power Over Ethernet integrated into it, or one
that feeds into an external midspan power supply that
supports Power Over Ethernet.

■ (If using a local power supply) the power supply is

plugged into the IntelliJack and into a working electrical
outlet.

■ Verify the IntelliJack is connected to the network properly

by viewing the Link LED (it should be on). If the Link LED is
not on, make sure the network cable:

■ Is terminated properly. Refer to the connector

manufacturer’s instructions for terminating the cable. Be
sure to test the connector and verify it is working.

■ Has a valid connection to the network.

■ Adheres to proper length and cabling specifications for

your network.

Troubleshooting

75

Troubleshooting

Troubleshooting Matrix

Event/
Message Description Solution

Power LED is
not on

IntelliJack is not receiving
power

Ensure power supply is
properly connected.

For power over Ethernet,
make sure that the cable is
connected to both the
LAN port on the back of
the IntelliJack and to the
workgroup switch.

Link LED is
not on

Green LEDs
on Ports 1-4
are not on

76

IntelliJack has no
connection to the
network

Network device has no
connection to IntelliJack

n Make sure network

cable is properly
terminated.

n Make sure the

IntelliJack is
connected to the
network.

n Make sure the cable

is plugged into the
workgroup switch.

n Make sure the cable

is properly
connected to the
network device.

n Make sure the cable

is firmly connected
to one of the four
IntelliJack ports
labeled 1-4.

n Make sure the cable

is a good straight­through cable.

Troubleshooting Matrix

Event/
Message Description Solution

Amber LED
on Port 4 is
not lit

Power is not being
forwarded to network
device

n Make sure the cable

is properly
connected to the
network device.

n Make sure the cable

is firmly connected
to one of the four
IntelliJack ports
labeled 1-4.

n Make sure the cable

is a good straight­through cable.

n Make sure network

device is 802.3af
compatible.

n Make sure the

power requirement
for network device
does not exceed 7
watts.

Authenticati
on Failure

Timeout Device did not respond

Wrong password has
been entered

within a specified
period of time

Confirm correct
password and re-type.

Refresh the screen after
a few seconds. If the
problem persists, try to
rediscover the device.

77

Troubleshooting

Event/
Message Description Solution

Attributes
Error

Unexpected
configuration
parameters

Confirm that you have
specified valid
parameter values and
retry the configuration
operation.

NOTE: This error should
not appear to the user
under normal
conditions.

General Error Something other than

authentication failure,
timeout or attributes
error has occurred

Retry the operation you
were performing.

NOTE: This error should
not appear to the user
under normal conditions.

78

G

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.

90 Day Free Installation Support

3Com provides free installation and troubleshooting telephone
support for this product for 90 days from the date of purchase.
Hours of operation are subject to change. See “Support from
3Com” on page 82.

Online Technical Services

3Com offers worldwide product support 24 hours a day, 7 days
a week, through the following online systems:

■ World Wide Web site

■ 3Com Knowledgebase Web Services

■ 3Com FTP site

Technical Support

79

Technical Support

World Wide Web Site

To access the latest networking information on the
3Com Corporation World Wide Web site, enter this URL
into your Internet browser: 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 range from technical education to maintenance and
professional services.

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-the-clock
access to technical information on most 3Com products.

3Com FTP Site

Download drivers, patches, software, and MIBs across the
Internet from the 3Com public FTP site. This service is available
24 hours a day, 7 days a week.

To connect to the 3Com FTP site, enter the following
information into your FTP client:

■ Hostname: ftp.3com.com

■ Username: anonymous

■ Password: <your Internet e-mail address>

80

Support from Your Network Supplier

NOTE: You do not need a user name and
password with Web browser software, such as
Netscape Navigator and Microsoft Internet
Explorer.

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.

When you consult your network supplier, 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

If you are unable to consult your network supplier, see the
following section on how to contact 3Com.

81

Technical Support

Support from 3Com

If you are unable to obtain assistance from the 3Com online
technical resources or from your network supplier, 3Com offers
technical telephone support services. To find out more about
your support options, call the 3Com technical telephone support
phone number: UK- 0870 909 3266; DE- 01805 404 747.

When you contact 3Com 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

Before you send a product directly to 3Com for repair, you must
first obtain an authorization number. Products sent to 3Com
without authorization numbers will be returned to the sender
unopened, at the sender’s expense. To obtain an authorization
number, refer to the table on page 83.

82

Techn ical Su ppor t

Country Telephone #

Austria 01 795 67124

Belgium (Flemish) 0 70 700000

Belgium (French) 070 700770

Denmark 70 10728 9

Finland 01080-2783

France 0825 8 09 6 22

Germany 0 1805 404 747

Hungary 06800 1 4466

Ireland 180 0 50 9359

Israel 18 00 9 43263 2

Italy 199 161 346

Luxembourg 800 298 80

Netherlands 090 0 77 7 77 37

Norway 815 33 0 47

Poland 0 0800 4 41135 7

Portugal 707 200 123

South A frica 080 0 99 1196

Spain 9 021 60455

Sweden 0771114 453

Switzerland 0 848850112

UK 087 0 90 9 32 66

All Other Countries [phone]

83

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., and other English language countries,
and countries for which a translation into the local language is not provided.

3Com® NJ205

Hardware

3Com warrants to the end user ("Customer") that this hardware product will be
substantially free from material defects in workmanship and materials, under normal
use and service, for the following length of time from the date of purchase from
3Com or its authorized reseller:

Limited Lifetime, for as long as the original Customer owns the product or for 5 years
after product discontinuance, whichever occurs first (not transferable to a
subsequent end user). FOR NON-US CUSTOMERS: Where a limited lifetime warranty
is not permitted by local law, a 10 year warranty period shall be given by 3Com. The
duration of this warranty shall be modified where necessary to meet any minimum
warranty period required by law.

3Com’s sole obligation under this express warranty shall be, at 3Com’s option and
expense, to repair the defective product or part, deliver to Customer an equivalent
product or part to replace the defective item, or if neither of the two foregoing
options is reasonably available, refund to Customer the purchase price paid for the
defective product. All products that are replaced will become the property of 3Com.
Replacement products or parts may be new or reconditioned. 3Com warrants any
replaced or repaired product or part for ninety (90) days from shipment, or the
remainder of the initial warranty period, whichever is longer.

Limited Warranty and Regulatory Compliance Information

OBTAINING WARRANTY SERVICE

Customer must contact a 3Com Corporate Service Center or an Authorized 3Com
Service Center within the applicable warranty period to obtain warranty service
authorization. Dated proof of purchase from 3Com or its authorized reseller may be
required. A User Service Order (USO), Return Material Authorization (RMA) or Service
Repair Order (SRO) number will be issued. This number must be marked on the
outside of the package sent to 3Com’s Corporate Service Center. The product must
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. For non-US Customers, the word 'prepaid' shall be
omitted where this requirement is not permitted by law. The allocation of
responsibility for loss or damage stated shall be subject to any mandatory legal
requirements. 3Com shall not be responsible for any software, firmware,
information, or memory data of Customer contained in, stored on, or integrated
with any products returned to 3Com for repair, whether under warranty or not.

WARRANTIES EXCLUSIVE, WARRANTY DISCLAIMER

TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND
REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS
OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW,
STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, WARRANTIES,
TERMS OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION,
NONINFRINGEMENT AND QUIET ENJOYMENT, ALL OF WHICH ARE EXPRESSLY
DISCLAIMED. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO
ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE,
INSTALLATION, MAINTENANCE OR USE OF THIS PRODUCT.

3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND
EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE
PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD
PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING,
UNAUTHORIZED ATTEMPTS TO OPEN, REPAIR OR MODIFY THE PRODUCT, OR ANY
OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE,
LIGHTNING, POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD.

Limited Warranty and Regulatory Compliance Information

LIMITATION OF LIABILITY

TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND
ITS LICENSORS AND SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR
TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT,
SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR
PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR OTHER
FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE,
INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION
OF ITS PRODUCTS, EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO
REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S
OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF
ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.

Some countries, states, or provinces do not allow the exclusion or limitation of
implied warranties or the limitation of incidental or consequential damages for
certain products supplied to consumers, or the limitation of liability for death or
personal injury, so the above limitations and exclusions may be limited in their
application to you. When the implied warranties are not allowed to be excluded in
their entirety, they will be limited to the duration of the applicable written warranty.
This warranty gives you specific legal rights which may vary depending on local law.

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
5500 Great America Pkwy
Santa Clara, California
95052-8145
U.S.A. [phone]

Limited Warranty and Regulatory Compliance Information

FCC Class A Verification Statement

WARNING: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules, and the Canadian
Department of Communications Equipment Standards entitled, “Digital Apparatus,”
ICES-003. These limits are designed to provide reasonable protection against harmful
interference in a commercial installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. Operation of
this equipment in a residential area is likely to cause harmful interference, in which
case, the user will be required to correct the interference at the user’s own expense.

Changes or modifications not expressly approved by 3Com could void the user’s
authority to operate this equipment.

FCC Declaration of Conformity

We declare under our sole responsibility that the

Model: Description:

3CNJ205 NJ205 IntelliJack

to which this declaration relates, is in conformity with the following standards or
other normative documents:

ANSI C63.4-1992 Methods of Measurement
Federal Communications Commission 47 CFR Part 15, subpart B

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 - 5500 Great America Pkwy - Santa Clara, California - 95052­8145 - U.S.A.

3Co m Co rpo ration
P.O. B ox 58145
5500 G rea t A merica Pkwy
San ta Clara , CA 950 52 -8145
U. S.A .

www .3co m.co m