Dell PRX User Manual

Dell™ Latitude™ C/Port II APR

System Information Guide

Guide d'information sur le système

Guia de Informações do Sistema

Guía de información del sistema

Model PRX

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Dell™ Latitude™ C/Port II APR

System Information Guide

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Notes, Notices, and Cautions

NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you

how to avoid the problem.

CAUTION: A CAUTION indicates a potential for property damage, personal injury,

or death.

____________________

Information in this document is subject to change without notice.
© 2001–2002 Dell Computer Corporation. All rights reserved.

Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly
forbidden.

Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Computer Corporation; 3Com
is a trademark of 3Com Corporation; Microsoft, Windows, and Windows NT are registered trademarks of Microsoft
Corporation.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and
names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names
other than its own.

This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents
and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright
protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited
viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is
prohibited.

January 2002 P/N 3G480 Rev. A03

Dell™ Latitude™ C/Port II APR

System Information Guide

This document contains getting started, safety, regulatory, and warranty
information about your Dell Latitude C/Port II Advanced Port Replicator
(APR) as well as information about other Dell documents that are available
and how to obtain them.

Safety Instructions

The following information defines the meaning of additional symbols used
only in the Safety Instructions section.

Risk of explosion Aircraft

Risk of fire Use of this feature may be prohibited

on aircraft

Risk of electric shock

Caution: General (Safety Instructions, continued)

• When setting up the docking station for work, place it
on a level surface.

• Do not attempt to service the docking station yourself
unless you are an authorized service technician. Always
follow installation instructions closely.

Dell Latitude C/Port II APR System Information Guide 3

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• If you use an extension power cable with your AC
adapter, ensure that the total ampere rating of the
products plugged in to the extension power cable does
not exceed the ampere rating of the extension cable.

• Do not push objects into air vents or openings of your
computer. Doing so can cause fire or electric shock by
shorting out interior components.

• Place the AC adapter in a ventilated area, such as a desk
top or on the floor, when you use it to run the computer
or to charge the battery. Do not cover the AC adapter
with papers or other items that will reduce cooling; also,
do not use the AC adapter inside a carrying case.

• Do not use your computer in a wet environment, for
example, near a bath tub, sink, or swimming pool or in a
wet basement.

• To help avoid the potential hazard of electric shock, do
not connect or disconnect any cables or perform
maintenance or reconfiguration of this product during
an electrical storm. Do not use your computer during
an electrical storm unless all cables have been
disconnected and the computer is operating on battery
power.

• Before you clean your docking station, remove power.
Clean your computer with a soft cloth dampened with
water. Do not use liquid or aerosol cleaners, which may
contain flammable substances.

Caution: Power (Safety Instructions, continued)

• Use only the Dell-provided AC adapter approved for
use with this docking station. Use of another AC
adapter may cause a fire or explosion.

4 Dell Latitude C/Port II APR System Information Guide

• Before you connect the docking station to an electrical
outlet, check the AC adapter voltage rating to ensure
that the required voltage and frequency match the
available power source.

• To remove power from the computer, turn it off,
remove the battery pack, and disconnect the AC
adapter from the electrical outlet.

• To help prevent electric shock, plug the AC adapter and
peripheral power cables into properly grounded power
sources. These power cables may be equipped with
three-prong plugs to provide an earth grounding
connection. Do not use adapter plugs or remove the
grounding prong from the power cable plug. If you use a
power extension cable, use the appropriate type, two­prong or three-prong, to mate with the AC adapter
power cable.

• Be sure that nothing rests on your AC adapter’s power
cable and that the cable is not located where it can be
tripped over or stepped on.

• If you are using a multiple-outlet power strip, use
caution when plugging the AC adapter’s power cable
into the power strip. Some power strips may allow you
to insert the plug incorrectly. Incorrect insertion of the
power plug could result in permanent damage to your
computer, as well as risk of electric shock and/or fire.
Ensure that the ground prong of the power plug is
inserted into the mating ground contact of the power
strip.

Dell Latitude C/Port II APR System Information Guide 5

Other Documents Available

• Documentation updates, which are sometimes included with your docking
device to describe changes to your docking device or software. Always read
these updates before consulting any other documentation because the
updates often contain the latest information.

• Documentation included with any options you purchase separately from
your docking device. This documentation includes information that you
need to configure and install these options in your docking device.

www.dell.com | support.dell.com

Getting Help

Dell provides a number of tools to help you if your docking device does not
perform as expected. For information on these help tools, see the “Getting
Help” section in the computer’s User’s Guide.

Docking Device Overview

NOTE: Alert your network administrator before you connect the docking device to

a network.

You must attach an AC adapter to the docking device before you dock the
computer to the docking device and turn on the computer. The AC adapter
powers the docking device and the computer at the same time. Any battery
installed in the computer charges while you use the docking device.

NOTICE: Always use the Dell PA-6 AC adapter that came with the docking device.

If you use any other commercially available AC adapter—or the AC adapter from
older models of Dell computers—you may damage the docking device or the
computer.

6 Dell Latitude C/Port II APR System Information Guide

I/O Panel of the Docking Device

USB
connectors (2)

PS/2-mouse
connector

serial
connector

PS/2-keyboard
connector

network
connector

parallel
connector

video
connector

AC adapter
connector

The “External I/O Connectors” table shows the icons for each of the
connectors on the back of the APR and indicates the type of external
device(s) that you can attach to each connector.

External I/O Connectors

Connector
Icon

Connector Description

One or two USB devices, such as a USB mouse, connect to
the dual USB connector.

An e xtern al PS /2-s ty le key bo ard or exte rn al nume ri c key pa d
connects to the PS/2 keyboard connector.

An external PS/2-compatible mouse connects to the PS/2
mouse connector.

A serial device, such as a serial mouse or external modem,
connects to the serial port connector.

A network interface cable connects to the NIC connector.

Dell Latitude C/Port II APR System Information Guide 7

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External I/O Connectors

A parallel device, such as a printer, connects to the parallel
port connector.

An external monitor connects to the video connector.

The AC adapter that came with the APR connects to the AC
adapter connector.

Audio Connectors and Infrared Sensor

infrared sensor

8 Dell Latitude C/Port II APR System Information Guide

audio line-out connector

Docking Control Base Controls and Indicators

security lock
slot (not on all
devices)

eject/
locking
lever

drive access
indicator

security lock
slot

padlock
slot

power
indicator

locked
position

unlocked
position

eject
position

docking
indicator

undock request
button

power button

Dell Latitude C/Port II APR System Information Guide 9

www.dell.com | support.dell.com

Monitor Stand

NOTICE: The stand supports monitors that weigh up to 45.3 kilograms (kg)

(100 pounds [lb]). Heavier monitors may damage the stand
docking device.

Docking Device With the Monitor Stand

monitor
stand

, computer, and

docking device

computer

NOTE: Be sure that the back legs on the monitor stand engage the slots on

either side of the docking control base.

10 Dell Latitude C/Port II APR System Information Guide

docking control base

Before Docking the Computer

If your computer is running the Microsoft® Windows® 9x, Windows NT®,
or Windows Millennium Edition (Me) operating system, you must first
check your computer for existing docking drivers. If your computer does not
have the docking drivers, install them before you dock the computer for the
first time. To install the docking drivers, perform the steps in “Installing the
Docking Drivers.”

NOTE: If your computer is running the Windows XP or Windows 2000

operating system
to perform the steps in
Computer.

Check Your Computer for Existing Docking Drivers

1 Double-click My Computer.
2 Double-click Control Panel.
3 Double-click Add/Remove Programs.
4 Locate the correct docking drivers from the list of programs.

For Windows 9x and Windows Me, check for the driver with Quick
Install in the name. For example: Dell Dock Quick Install for

Windows.

, the drivers are installed automatically and you do not need

“Installing the Docking Drivers.” Go to “Docking Your

”

For Windows NT, check for NT Softex Docking Services.

If your computer does not have the docking drivers, go to the next section,
“Installing the Docking Drivers.” If your computer has the docking drivers,
go to “Docking Your Computer.”

Installing the Docking Drivers

You can install your docking drivers in one of the following ways:

• Install the drivers from the ResourceCD or Drivers and Utilities CD
that came with your computer or docking device.

• Download the drivers from the Dell | Support website.

Dell Latitude C/Port II APR System Information Guide 11

Installing the Docking Drivers From the ResourceCD or Drivers and
Utilities CD

1 Insert the ResourceCD or Drivers and Utilities CD into the CD drive.

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In most cases, the CD should start running automatically. If it does
not, start Windows

Explorer, click your CD drive directory to display
the CD contents, and then double-click the autorcd application file. If
a welcome screen appears, click Next. The first time that you run the
CD, it might prompt you to install some setup files. Click OK and
follow the instructions on the screen to continue.

2 From the Language pull-down menu on the toolbar, select your

preferred language for the driver (if available).
A welcome screen appears.

3 Click Next.
4 Under Search Criteria, select the appropriate categories from the

System Model and Operating System pull-down menus.

If your system is running Windows 9x or Windows Me, select System
Utilities from the Device Type pull-down menu, and then select
Drivers from the Topic pull-down menu.

If your system is running Windows NT, select System Utilities from the
Device Type pull-down menu, and then select Utilities from the Topic
pull-down menu.

A link or links appear(s) for the specific drivers or utilities used by your
computer.

5 If your system is running Windows 9x or Windows Me, click the link for

the Dell Dock QuickInstall utility.
The Dell Dock QuickInstall file is a utility that installs the required

docking drivers on your computer.

If your computer is running Windows NT, click the link for Softex
Docking Services.

12 Dell Latitude C/Port II APR System Information Guide

6 Click the Install button to start the automatic installation. At the

welcome screen, follow the screen prompts to complete the
installation.

NOTE: Some ResourceCDs may require users to navigate through folders to

obtain the correct driver. For complete instructions on reinstalling drivers, see
your User’s Guide.

Installing the Docking Drivers From the Dell | Support Website

1 Go to the Dell | Support website at support.dell.com. If you are

visiting the website for the first time, click your region under Choose a
region and click Go.

2 Follow the instructions on the screen.
3 Enter your docking device information, and then click Go!.
4 Click Downloads.

The Downloads For Your Dell window appears, including a short form
for you to fill out.

5 Select your operating system and operating system language.
6 Select System and Configuration Utilities as your download category.
7 Click Go!.
8 If your computer is running Windows 9x or Windows Me, locate and

click the link for the Dell Dock QuickInstall utility.
If your computer is running Windows NT, locate and click the link for

Softex Docking Services.

9 Follow the instructions on the screen to download and install the

required drivers.
After you download the files and before you install the drivers, make

sure to view the readme.txt file that is included in the downloaded files
for important information about the installation.

Dell Latitude C/Port II APR System Information Guide 13

www.dell.com | support.dell.com

Docking Your Computer

If you attach a monitor to the docking device and turn the monitor on, the
screen image appears on the monitor. To switch the image to the computer
display, or to both the monitor and the computer display, press
<Fn><F8>.

When you dock the computer to the docking device and turn the computer
on, the green power light on the docking control base lights up (see
“Docking Control Base Controls and Indicators”).

NOTICE: To avoid losing data, save any open files before you dock the

computer.

1

Save all files, close and exit all application programs, exit the operating
system, and turn off the computer.

NOTICE: To avoid damaging the docking connector, open the docking panel

door before you attempt to dock the computer to the docking device.

2

If the computer has a docking panel door, open the docking panel door
on the back of the computer.

Docking Panel Door on the Computer

computer

docking panel
door (not on all
computers)

14 Dell Latitude C/Port II APR System Information Guide

3 If you are using the docking device with a monitor stand, close the

computer display.

4 Ensure that the eject/locking lever is in the unlocked position.
5 Dock the computer to the docking device as follows:

Docking the Computer

docking connector

alignment rails (2)

a Horizontally center the computer on the APR platform, with the

back of the computer facing the docking device docking
connector, as shown in “Docking the Computer.”

b Slide the computer toward the connector until you feel the

grooves on the bottom of the computer engage with the alignment
rails.

NOTICE: If you attempt to push the computer all the way into the APR

without engaging the alignment rails, you may irreparably damage the docking
connector on the computer.

NOTICE: Do not pick up the computer or the docking device separately when

they are connected because you may damage the connectors on the computer
and the docking device.

Dell Latitude C/Port II APR System Information Guide 15

www.dell.com | support.dell.com

NOTICE: If you are using a monitor with the monitor stand, remove the

monitor from the stand before moving the docking control base into place.

c Gently push the computer forward until the docking connector is

fully engaged.

Docking for the First Time With Windows XP and Windows 2000

1 Dock and turn on your computer.
2 Press <F2> during the system boot routine to view the system setup

program.

3 Set Docking IRQ to Optimized.
4 Set Universal Connect to Enabled.
5 Exit the system setup program.

Your system will continue the boot process.

In Windows 2000, the Add New Hardware Wizard appears.

NOTE: If your computer is running Windows XP, the operating system

automatically installs the drivers. If your computer is running Windows 2000,
the Add New Hardware Wizard automatically installs your drivers.

Docking for the First Time With Windows Me

1 Dock and turn on your computer.
2 Press <F2> during the system boot routine to view the system setup

program.

3 Set Docking IRQ to Optimized.
4 Set Universal Connect to Enabled.
5 Exit the system setup program.

Your system will continue the boot process.

The Add New Hardware Wizard appears.

6 Select Search for the Best Driver for Your Device (Recommended)

and click Next.

7 Click Next.
8 Follow the prompts on the Add New Hardware Wizard.

16 Dell Latitude C/Port II APR System Information Guide

9 Whenever prompted, select Search for the Best Driver for Your

Device (Recommended) and click Next.

10 Continue to follow the prompts to complete the installation.

The Windows desktop appears and the installation is complete.

Docking for the First Time With Windows NT 4.0

1 Dock and turn on your computer.
2 Either press <F2> during the system boot routine, or press

<Fn><F1> after your computer boots to view the system setup
program.

3 Set Docking IRQ to Optimized.
4 Set Universal Connect to Enabled.
5 Exit the system setup program.
6 Press <Ctrl><Alt><Del> to log on.

The Docking Station Setup window appears and indicates that the
computer must be undocked to continue.

7 Click OK and wait for the computer to turn off.
8 Undock the computer (see “Undocking the Computer”).

The computer restarts automatically. If it does not, turn on the
computer.

9 Click Start and select Shut Down.

10 Wait for the computer to turn off completely and redock the computer

to the docking device.
The computer restarts automatically. If it does not, turn on the

computer.

11 Press <Ctrl><Alt><Del> to log on.

The computer automatically detects new devices.

12 When prompted, select Install System Provided Driver for the

Selected Device (Recommended) and click OK.

13 Click Continue at the Windows NT Setup window.

Dell Latitude C/Port II APR System Information Guide 17

14 Select Install System Provided Driver for the Selected Device

(Recommended) and click OK.

15 Select the name of your network interface controller (NIC) from the

drop down menu.

16 Select whether the network adapter should obtain an IP address from a

server, or whether an IP address is specified.
If you do not know what to select, see your system administrator.

17 Follow the prompts to complete the installation.

The Windows desktop appears and the installation is complete.

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The computer cannot enter suspend-to-disk mode while docked.

Docking for the First Time With Windows 98

1 Dock and turn on your computer.
2 Either press <F2> during the system boot routine, or press

<Fn><F1> after your computer boots to view the system setup
program.

3 Set Docking IRQ to Optimized.
4 Set Universal Connect to Enabled.
5 Exit the system setup program.

The computer detects new hardware.

6 Click OK at the Configuration Setup window.

The Add New Hardware Wizard appears.

7 Click Next.
8 Select Search for the Best Driver for Your Device (Recommended)

and click Next.

9 Remove the check-mark next to each option and click Next.

A window appears, indicating that Windows is ready to install the best
driver for your device.

10 Follow the prompts on the Add New Hardware Wizard.
11 Whenever prompted, select Search for the Best Driver for Your

Device (Recommended) and click Next.

18 Dell Latitude C/Port II APR System Information Guide

12 Continue to follow the prompts to complete the installation.

The Windows desktop appears and the installation is complete.

Docking for the First Time With Windows 95

1 Dock and turn on your computer.
2 Either press <F2> during the system boot routine, or press

<Fn><F1> after your computer boots to view the system setup
program.

3 Set Docking IRQ to Optimized.
4 Set Universal Connect to Enabled.
5 Exit the system setup program.

The computer automatically detects new hardware.

6 Click Yes at the System Settings Change window.

The computer restarts and automatically detects new hardware.

7 Click OK at the Network window.
8 Select the Identification tab at the next Network window.
9 Enter a Computer Name and Workgroup that will identify your

computer on the network, and click Close.
If you are unsure what Computer Name and Wor kg ro up to enter,

check with your System Administrator.

NOTE: You must enter a Computer Name and Workgroup to proceed with the

driver installation.

The computer automatically copies files and builds a driver
information database.

10 Click OK at the Configuration Setup window.
11 Follow the prompts to complete the installation.

The Windows desktop appears and the installation is complete.

NOTE: To use the USB connectors, you must install the USB supplement from

your ResourceCD in the Win95\OSUpdate directory. If you install the USB
supplement
you do not install the USB supplement unless you intend to use USB devices.

, your computer cannot enter suspend mode. Dell recommends that

Dell Latitude C/Port II APR System Information Guide 19

Updating Drivers in Windows XP and Windows 2000

To update drivers in Windows XP and Windows 2000:

1 Right-click My Computer and click Manage. (In Windows XP, click

the Start button to access My Computer. In Windows 2000, My
Computer is located on the Windows desktop.)

2 In the Computer Management window, click Device Manager, and

double-click Network adapters.

3 Double-click 3Com 3C920 Integrated Fast Ethernet Controller.
4 Click the Driver tab.

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5 Click Update Driver... and follow the prompts.

Updating Drivers in Windows Me

To update drivers in Windows Me:

1 Right-click My Computer on the desktop and click Properties.
2 In the System Properties window, click the Device Manager tab, and

double-click Network adapters.

3 Double-click 3Com 3C920 Integrated Fast Ethernet Controller.
4 Click the Driver tab.
5 Click Update Driver... and follow the prompts.

20 Dell Latitude C/Port II APR System Information Guide

Undocking the Computer

eject/locking lever

NOTICE: If the computer does not have power from a battery, the computer

turns off when you undock it

, and you will lose all unsaved data.

NOTICE: Never undock the computer without first preparing the computer. If

you undock before preparing the computer
may not recover normal operation for several minutes

To prepare the computer for undocking, perform one of these methods:

• Press <Fn><Esc> on the computer's keyboard (or
<Scroll Lock><Esc> on an external keyboard).

Wait a few seconds for the power light on the computer to turn off.

, you will lose data and the computer

, if at all.

Dell Latitude C/Port II APR System Information Guide 21

www.dell.com | support.dell.com

• In Windows XP, click the Start button, and then click Undock
Computer.

In Windows 95, Windows 98, Windows Me, or Windows 2000, click the

Start button, and then click Eject PC.

In Windows NT, click the docking icon on the taskbar, and then click

Undock to place the computer in suspend mode.

Wait a few seconds for the power light on the computer to turn off.

• Press the undock request button on the docking control base (see the
figure “Docking Control Base Controls and Indicators”). Wait for the
green docking light to turn off.

Securing the C/Port II APR

Security Features

The docking device has the following security features:

• An eject/locking lever that allows you to secure and eject your
computer. The back position secures the computer to the C/Port II
APR. The middle position allows you to use the docking device
without securing it. The front position ejects the computer from the
docking device. Push the eject/locking lever to the back position to use
the padlock security lock and the security lock slot.

• A spring-loaded latch on the front of the base that fits into a security
slot on the bottom of the computer secures the computer to the
docking control base. Not all Dell computers have the security slot.

• A secured media-bay eject button that blocks removal of media bay
devices.

• An immobilized catch latch to deter unauthorized computer removal.

22 Dell Latitude C/Port II APR System Information Guide

Securing the C/Port II APR

Use one of the following methods to secure the docking device:

• Use a padlock alone or a padlock and looped security cable with the
padlock slot (see “Docking Control Base Controls and Indicators”) on
the docking device.

A padlock alone blocks the eject lever and makes it difficult to detach
the computer from the docking device.

A security cable looped around a stationary object and used in
conjunction with the padlock can help prevent the unauthorized
movement of the computer and the C/Port II APR.

• Attach a commercially available antitheft device to the security lock
slot (see “Docking Control Base Controls and Indicators”) on the
docking device.

Antitheft devices usually include a segment of metal-stranded cable
with an attached locking device and associated key. Dell recommends
that you use a Kensington lock. For instructions on installing this kind
of antitheft device, see the documentation that accompanied the
device.

Dell Diagnostics

The Dell Diagnostics that came with your Dell Latitude computer includes
tests that help you troubleshoot the controllers in your docking device.

The subtests in the Network Interface test group of the Dell Diagnostics
verify the basic operation of the network controller in the docking device.
They test the controller's internal functions, including read and write access
to its registers and internal transmit and receive (loopback) capability.

The subtests in the Serial/Infrared Ports test group check the docking
device's interface with external devices (such as a serial mouse or a printer).
The subtests in this test group are not intended as a diagnostic test for the
external device itself.

Dell Latitude C/Port II APR System Information Guide 23

www.dell.com | support.dell.com

The subtests in the USB test group check the docking device's interface
with external devices (such as a mouse). The subtests in this test group are
not intended as a diagnostic test for the external device itself.

For complete instructions on using the Dell Diagnostics, see your
computer's User's Guide.

Technical Specifications

Technical Specifications

Physical

Height:

With monitor stand 10.2 cm (4.0 inches)

Standalone 5.8 cm (2.3 inches)

Depth:

With monitor stand 39.0 cm (15.4 inches)

Standalone 35.8 cm(14.1 inches)

Width:

With monitor stand 40.9 cm (16.1 inches)

Standalone 37.5 cm (14.8 inches)

Weight:

With monitor stand 3.0 kg (6.5 lb)

Standalone 1.6 kg (3.5 lb)

Power

AC Adapter Input:

Voltage 100–200VAC, 50–60 Hz

Amperage 3.5–4.5 A

APRII Input:

Voltage requires 20 VDC from AC Adapter

Amperage 3.5 A

24 Dell Latitude C/Port II APR System Information Guide

Technical Specifications

I/O

Serial (DTE) 16550-compatible, 16-byte buffer connector

Parallel unidirectional, bidirectional, or ECP connector

PS/2 two mini-DIN connectors

USB two USB-compliant connectors

Infrared infrared sensor compatible with IrDA Standards

1.1 (Fast IR) and 1.0

Audio line out audio jack (for optional headphones)

Video one connector

Network one RJ45 connector

Docking (to connect to
computer)

Ethernet Network Controller

Chip set 3Com

Data bus width 32-bit PCI host bus interface

IRQ IRQ10

one connector

®

3C920; 10/100 BASE-TX

(PC99-compliant)

Regulatory Notices

Electromagnetic Interference (EMI) is any signal or emission, radiated in
free space or conducted along power or signal leads, that endangers the
functioning of a radio navigation or other safety service or seriously
degrades, obstructs, or repeatedly interrupts a licensed radio
communications service. Radio communications services include but are
not limited to AM/FM commercial broadcast, television, cellular services,
radar, air-traffic control, pager, and Personal Communication Services
(PCS). These licensed services, along with unintentional radiators such as
digital devices, including computers, contribute to the electromagnetic
environment.

Dell Latitude C/Port II APR System Information Guide 25

Electromagnetic Compatibility (EMC) is the ability of items of electronic
equipment to function properly together in the electronic environment.
While this computer has been designed and determined to be compliant
with regulatory agency limits for EMI, there is no guarantee that
interference will not occur in a particular installation. If this equipment
does cause interference with radio communications services, which can be
determined by turning the equipment off and on, you are encouraged to try
to correct the interference by one or more of the following measures:

• Reorient the receiving antenna.

• Relocate the computer with respect to the receiver.

www.dell.com | support.dell.com

• Move the computer away from the receiver.

• Plug the computer into a different outlet so that the computer and the
receiver are on different branch circuits.

If necessary, consult a Dell Technical Support representative or an
experienced radio/television technician for additional suggestions.

Dell computers are designed, tested, and classified for their intended
electromagnetic environment. These electromagnetic environment
classifications generally refer to the following harmonized definitions:

• Class A is typically for business or industrial environments.

• Class B is typically for residential environments.

Information Technology Equipment (ITE), including devices, expansion
cards, printers, input/output (I/O) devices, monitors, and so on, that are
integrated into or connected to the computer should match the
electromagnetic environment classification of the computer.

A Notice About Shielded Signal Cables: Use only shielded cables for
connecting devices to any Dell device to reduce the possibility of
interference with radio communications services. Using shielded cables
ensures that you maintain the appropriate EMC classification for the
intended environment. For parallel printers, a cable is available from Dell.
If you prefer, you can order a cable from Dell on the World Wide Web at
accessories.us.dell.com/sna/segmenter/asp.

26 Dell Latitude C/Port II APR System Information Guide

Most Dell computers are classified for Class B environments. However, the
inclusion of certain options can change the rating of some configurations to
Class A. To determine the electromagnetic classification for your computer
or device, refer to the following sections specific for each regulatory agency.
Each section provides country-specific EMC/EMI or product safety
information.

FCC Notices (U.S. Only)

Most Dell computers are classified by the Federal Communications
Commission (FCC) as Class B digital devices. To determine which
classification applies to your computer, examine all FCC registration labels
located on the bottom or back panel of your computer, on card-mounting
brackets, and on the cards themselves. If any one of the labels carries a Class
A rating, your entire computer is considered to be a Class A digital device. If
all labels carry an FCC Class B rating as distinguished by either an FCC ID
number or the FCC logo, ( ), your computer is considered to be a Class B
digital device.

Once you have determined your computer’s FCC classification, read the
appropriate FCC notice. Note that FCC regulations provide that changes
or modifications not expressly approved by Dell could void your authority to
operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:

• This device may not cause harmful interference.

• This device must accept any interference received, including
interference that may cause undesired operation.

Dell Latitude C/Port II APR System Information Guide 27

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Class A

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. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the manufacturer’s instruction
manual, may cause harmful interference with radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference, in which case you will be required to correct the interference at
your own expense.

Class B

This equipment has been tested and found to comply with the limits for a
Class B digital device pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the
manufacturer’s instruction manual, may cause interference with radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, you are encouraged to try to correct the
interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.

• Consult the dealer or an experienced radio/television technician for
help.

28 Dell Latitude C/Port II APR System Information Guide