3Com 005683-00 - Manuale utente

This manual covers installation and operating instructions for the following 3Com modem:

U.S. Robotics 56 kbps∗Winmodem™

U.S. Robotics is a registered trademark and Connections, RapidComm, and x2 are trademarks of

3Com Corporation and its subsidiaries. Windows is a registered trademark of Microsoft Corp.

CompuServe is a registered trademark of CompuServe Inc. America Online is a registered trademark

of America Online Inc. 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! In accordance with the ITU-T standard for 56K transmissions, this modem is 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 and other factors. Uploads from users to server equipment travel at

speeds up to 31.2 Kbps. An analog phone line compatible with the ITU-T 56K standard or x2

technology, and an Internet provider or corporate host site compatible with the ITU-T 56K standard

or x2 technology are necessary for these high-speed downloads.

TABLE OF CONTENTS

Welcome to 56k Information Access 1

Product Features 2

Windows 3.x Installation 3

How to Insert the Modem 4

Running the Installation on a Windows 3.1 or 3.11 System 8

Before You Begin (Windows 95 Users) 13

Windows 95 Installation 14

How to Prepare For Plug and Play 14

Checking Your Version of Windows 95 14

Checking Your System’s Resources 16

How to Insert the Modem 17

Installing the Winmodem Software in Windows 950a 21

Installing the Winmodem Software in Windows 950b 22

Un-Installing the Winmodem Software in Windows 26

Software Installation and Testing 29

Software Installation and Registration Using the Update Wizard 29

Starting the Wizard 30

Installing the RapidComm Fax/Data Software 31

TABLE OF CONTENTS

Installing Other Fax/Data Software 32

Type of Modem 32

Initialization String 32

Flow Control 33

Using Modem Station 34

Why Modem Station? 34

What Does Modem Station Do? 34

Installing Modem Station 34

Starting Modem Station 37

Using Detect New Modems 39

Using Terminal 40

Using Modem Configurator 43

Using Modem to Computer 46

Using the Extended Information Screens 50

U.S. Robotics Update Wizard 56

Installing the Wizard 57

Updating Your Modem 57

Troubleshooting and Online Help Resources 58

Problems and Solutions 58

Online Help Resources 69

Are You Still Having Problems? 72

If You Need to Return the Modem to 3Com 73

TABLE OF CONTENTS

Glossary 74

Regulatory Information 88

Manufacturer’s Declaration of Conformity 88

Caution to the User 89

(Canada) IC 89

UL Listing/CUL Listing 89

Connecting to the Telephone Company 90

Fax Branding 90

Radio and Television Interference 91

For Canadian Modem Users 92

Limited Warranty 95

WELCOME TO 56K INFORMATION ACCESS

The International Telecommunications Union

(ITU) decides the technical protocols

communications devices must use to

interoperate with each other. Modems that

comply with ITU standards can “talk to” other

standards-compliant modems and fax

machines worldwide.

The ITU has decided on a worldwide 56K

standard technology. So, now with a

U.S. Robotics modem you can get all the

Internet you want from any service provider

who offers the ITU standard 56K technology

or x2™ technology.

This modem will give you the most

compatibility with high speed downloads from

service providers that offer the ITU 56K

standard technology or x2 technology to their

customers. 3Com is working with providers

everywhere to quickly upgrade their service to

the ITU 56K standard.

*Capable of receiving up to 56 Kbps and sending

up to 31.2 Kbps. Due to FCC regulations, receiving

speeds are limited to 53 Kbps. Actual speeds may

vary. Requires compatible phone line and server

equipment. Complies with both the proposed ITU

56K standard and x2 protocols. ITU 56K standard

officially determined in February, 1998; expected to

be ratified in September, 1998. See

www.3com.com/56k

PRODUCT FEATURES

Modulation Schemes

56K ITU-T standard

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

28000, 29333, 30666, 32000,

33333, 34666, 36000, 37333,

38666, 40000, 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

33600

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 Rates2400, 4800, 7200,

9600,

12000, 14400

WINDOWS 3.X INSTALLATION

These instructions cover the installation of the

Winmodem hardware and the accompanying

software under Windows 3.x. These

instructions are for users of either Windows

3.1, Windows 3.11, or Windows for

Workgroups.

You’ll need these items from your

U.S. Robotics modem box:

the modem a phone cord

Connections CD

Winmodem disk Installation

Guide

Plus: a screwdriver (not included)

WINMODEMINSTALLATIONUNDERWINDOWS3.X

This chapter will walk you through the

installation of your Winmodem. There are two

parts to the installation: hardware (the modem)

and software. The modem must be installed

before the software.

NOTE:Your Winmodem supports

Plug and Play installation, the fastest,

easiest way to add new features (a

modem, a sound card, etc.) to your PC.

Howto Insertthe Modem

NOTE: Before installing your

modem, write down its serial number.

(You’ll find the serial number

underneath the bar code on the white

sticker on the modem and on the

outside of the box the modem came

in.) If you ever need to call our

customer support department, a

customer support representative will

ask you for the serial number. This

will help him or her identify your

modem.

1. Shut down Windows, turn off your

computer and unplug it from the electrical

outlet.

2. Unplug any peripheral devices (printer,

monitor, keyboard) from the computer.

WINMODEMINSTALLATIONUNDERWINDOWS3.X

TIP:Before you unplug anything, label

the cords or make a sketch of how

things are connected. This can be

helpful when you plug things back in

later.

CAUTION:To avoid the risk of electric

shock, make sure your computer and all

peripheral devices are turned off and

unplugged.

3. Remove the screws from your computer’s

cover and then remove the cover. Your

computer may look different from the

drawing on the right, but the basic principle

for removing the cover should be the same.

Refer to your computer manufacturer’s

manual if you need further instructions.

4. Find an empty ISA expansion slot at least

as long as the gold edge of your modem.

(ISA slots have black plastic grooves lined

with silver metal.) Unscrew and remove

the expansion slot cover (the long narrow

piece of metal that keeps dust from

entering through the opening perpendicular

to the slot.) Be careful not to drop the

screw into the computer. You will need it

later to screw the modem into place.

WINMODEMINSTALLATIONUNDERWINDOWS3.X

5. Holding the modem by each corner, align

the gold edge with an empty expansion

slot. Push down gently until the modem

snaps into the slot. (Note: The drawing

shows horizontally aligned expansion slots.

Some computers have vertically aligned

slots. The instructions apply to both styles.)

You’ll have to apply a little pressure to

seat the modem properly. Sometimes a

gentle back-and-forth motion helps get the

modem all the way into the slot. If you feel

resistance, the modem may not be

properly lined up with the slot. Do not

force it. Take the modem all the way out

and try again.

6. Once the modem is seated, secure it using

the screw you removed in step 3.

7. Put the computer’s cover back on and

replace the screws.

8. If you currently have a phone plugged into

the wall jack you’re going to use for the

modem, disconnect the phone’s cable from

the jack. (See Warning statement on next

page.)

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