US Robotics 002605-00

This manual covers installation and operating instructions for the following U.S. Robotics modems:

Sportster®56 kbps∗Winmodem™

U.S. Robotics, the USRobotics logo, V.Everything, Winmodem, and Sportster are registered

trademarks and Connections, Total Control, Courier, RapidComm, x2, and the x2 logo are

trademarks of 3Com Corporation or its subsidiaries. Windows and Internet Explorer are registered

trademarks of Microsoft Corp. CompuServe is a registered trademark of CompuServe Inc. America

Online is a registered trademark of America Online Inc. Netscape Navigator is a trademark of

Netscape Communications Corp. Any other trademarks, trade names, or service marks used in this

manual are the property of their respective owners.

7770 North Frontage Road

Skokie, IL 60077-2690

∗∗ IMPORTANT! All x2 products are capable of 56 kbps downloads; however, due to FCC rules

which restrict power output of the service providers' modems, current download speeds are limited to

53 kbps. Actual speeds may vary depending on line conditions. Uploads from users to service

providers travel at speeds up to 33.6 kbps. An x2-capable modem, an x2-compatible analog phone

line and an x2-capable Internet Service Provider are necessary for these high-speed downloads.

TABLE OF CONTENTS

Welcome to x2™ Information Access 1

Product Features 3

Windows 95 Hardware Installation 4

Checking Your Version of Windows 95 5

How to Insert the Modem 6

How to Move Through the “New Hardware Found” Screens in Windows 950 or 950a10

Installing the Winmodem Software Under Windows 950b 12

Uninstalling the Winmodem Software in Windows 95 16

Windows 3.x Hardware Installation 19

How to Insert the Modem 20

Running the Installation Program on a Windows 3.1 or 3.11 System 23

Software Installation and Testing 29

Software Installation and Registration using the Setup Wizard 29

Sending Your First Fax 44

Using Other Communications Software 47

TABLE OF CONTENTS

iii

U.S. Robotics Modem Update Wizard 49

Installation 50

Operation 54

Troubleshooting and Online Help Resources 62

Online Help Resources 68

Connecting to the 3Com BBS 68

Downloading the Technical Reference Guide 69

World Wide Web 71

CompuServ 71

America Online 71

Fax and Technical Support Hotline 71

RapidComm Trouble Shooting Tips 73

Using Modem Station 75

Installing Modem Station 75

Using Detect New Modems 80

Using Terminal 82

Using Modem Configurator 84

Using Modem to Computer 87

TABLE OF CONTENTS

The Extended Information Screens 92

Glossary 93

Technical Quick Reference 107

Command Summary 108

S-Registers 123

Regulatory Information 134

Fax Branding 136

For Canadian Modem Users 138

Limited Warranty 142

Index 144

WELCOME TO x2TECHNOLOGY INFORMATION ACCESS

Thelatestbreakthroughin

onlinecommunications

Until now, 33.6 kbps was thought to be the

practical limit for speed over standard phone

lines. Now, x2 Technology shatters that

barrier, to bring you high speed downloads. x2

Technology is capable of 56kbps downloads,

but, due to FCC rules which restrict power

output of your service provider’s modems,

current download speeds are limited to 53

kbps. This modem is software upgradable,

allowing easy upgrades to new features and

enhancements as they become available.

Anintegratedend-to-end

solutionfromtheleader

3Com is well positioned to bring you x2

Technology. Our U.S. Robotics Sportster®

modems are the world's number one seller,

and our Total ControlTM and CourierTM product

lines are favored by many Internet service

providers. This widespread acceptance allows

3Com to offer x2 Technology to virtually

anyone.

WELCOMETOX2 INFORMATIONACCESS

Takingadvantageofthe

moderntelephonenetwork

x2 Technology takes advantage of the typical

network configuration found when an analog

subscriber connects to a digitally connected

server. x2 can use nearly all of the available

64K network bandwidth. (Upstream data,

typically less speed sensitive, travels at the

standard V.34 rate.)

The result is a completely new kind of

transmission technique. Based on “encoding”

rather than “modulation,” it can give you

download speeds that you never thought

possible. What’s more, with standard V.42 bis

compression, x2 can download at speeds up

to a blistering 115.2 kbps.

Updatingx 2technologyis

easyandFREE!

Read the section of this manual titled “U.S.

Robotics Modem Update Wizard” (page 41)

for information about using this software (on

the Connections™CD) to update your

modem’s code to the latest version.

Thenewstandardforonline

speed

3Com has already submitted x2 to the ITU-T

standards committee for acceptance as the

next online standard. For more information on

U.S. Robotics’ x2 technology, see our World

Wide Web page at http://x2.usr.com.

PRODUCT FEATURES

Your new x2 modem

provides many advanced

features. Here are just a

few:

Modulation Schemes

x2 technology

ITU-T V.34+

ITU-T V.34

ITU-T V.32bis

ITU-T V.32

ITU-T V.22bis

ITU-T V.22

ITU-T V.23

Bell 212A

ITU-T V.21

Bell 103

Error Control and Data

Compression Schemes

ITU-T V.42

ITU-T V.42bis

MNP 2-5

Fax Modulation

Schemes

ITU-T V.17

ITU-T V.29

ITU-T V.27ter

ITU-T V.21

Fax Standards

EIA 578 Class 1 FAX

EIA 592 Class 2.0 FAX

Front Channel Link

Rates

33333, 37333, 41333, 42666,

44000, 45333, 46666, 48000,

49333, 50666, 52000, 53333,

54666, 56000, 57333

Back Channel Link

Rates

4800, 7200, 9600, 12000, 14400,

16800, 19200, 21600, 24000,

26400, 28800, 31200

V.34+ Link Rates

4800, 7200, 9600, 12000, 14400,

16800, 19200, 21600, 24000,

26400, 28800, 31200, 33600

V.32bis Link Rates

4800, 7200, 9600, 12000, 14400

Additional Link Rates

300, 1200/75 (V.23), 1200, 2400

Fax Link Rates

2400, 4800, 7200, 9600, 12000,

14400

WINDOWS 95 HARDWARE INSTALLATION

You’ll need these items from your

Sportster modem box:

the modem a phone cord

the Connections CD this manual

Winmodem disk Installation

Guide

Plus: a screwdriver (not included)

NOTE! These instructions are for

Windows 95 users. If your computer is

running Windows 3.x, please refer to

the online documentation included on

the Connections CD-ROM. The software

installation instructions in the

“Software Installation and Testing”

section of this manual apply to both

Windows 95 and Windows 3.x users.

WINMODEM HARDWARE INSTALLATION

Windows 95 Users

To install your Winmodem properly, you must

first know which version of Windows 95 you

have. Please follow these instructions to check.

CheckingYourVersionof

Windows95

1. Start Windows

Right-click the My Computer icon.

2. Select Properties.

3. Find your version number in the upper right

corner of the “General” screen below.

In the example preceding, the version is 950a.

WINMODEM HARDWARE INSTALLATION

Make a note of the Windows version you are

using. You will follow different instructions for

navigating the “New Hardware Found”

screens depending on which version of

Windows you are using.

HowtoInserttheModem

NOTE: Before installing your

modem, write down the modem's

serial number in the manual. (The

serial number is on the bar coded

sticker on the modem and on the

outside of the box the modem came

in.) If you ever need to call our

technical support department, the

technical support representative will

ask you for the serial number. This

will help him or her identify the type

of modem you have.

1. Turn off your computer and unplug it from

the electrical outlet.

2. Unplug any peripheral devices (printer,

monitor, keyboard, mouse, etc.) from the

computer.

TIP:If you haven’t added

accessories to your computer before, we

suggest labeling the cords and cables

before unplugging them.

CAUTION:To avoid being

shocked, make sure your computer and

all peripheral devices are turned off and

unplugged from the electrical outlets.

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