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US Robotics Sportster - User Manual

US Robotics Sportster
179 pages
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This manual covers installation and operating instructions for the following U.S. Robotics modems:
Sportster
®
56 kbps internal and external modems
U.S. Robotics, the USRobotics logo, and Sportster are registered trademarks and Connections,
Total Control, Courier, RapidComm, x2, and the x2 logo are trademarks of 3Com Corporation and
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.
© 1997 3Com Corporation
7770 North Frontage Road
Skokie, IL 60077-2690
All Rights Reserved
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 28.8 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

Question and Answer IconNeed help?

Do you have a question about the US Robotics Sportster and is the answer not in the manual?

Summary

Internal Modem Installation with Windows 3.x

A Word about COM Ports and IRQs

Explains COM ports and IRQs essential for modem configuration.

How to Use ComTest to Determine Your Modem’s Settings

Guide to using ComTest for identifying available COM ports and IRQs.

Testing an Installed Modem

Procedure to check settings of an already installed modem.

What to Do with ComTest’s Recommendation

Advice on handling ComTest's suggested COM and IRQ settings.

How to Change the Modem’s Settings

Instructions for physically adjusting modem jumper settings for COM/IRQ.

How to Insert the Modem into the Computer

Step-by-step physical installation of the internal modem into the PC.

Internal Modem Installation with Windows 95

Plug and Play Installation

Overview of Windows 95 Plug and Play modem installation.

How to Prepare for Plug and Play Installation

Steps to prepare the system and handle the modem before installation.

How to Insert the Modem into the Computer

Physical insertion process for the internal modem into the computer.

How to Move Through the “New Hardware Found” Screens

Guide to navigating Windows 95 prompts for new hardware detection.

External Modem Installation with Windows 3.x

How to Determine Which Serial Cable to Buy

Guidance on selecting the correct RS-232 serial cable for PC connection.

How to Connect the Modem to the Computer

Steps to physically connect the external modem to the computer and power.

External Modem Installation with Windows 95

How to Determine Which Serial Cable to Buy

Guidance on selecting the correct RS-232 serial cable for PC connection.

How to Connect the Modem to the Computer

Steps to physically connect the external modem to the computer and power.

Software Installation and Testing

Software Installation and Registration Using the Setup Wizard

Comprehensive guide to installing software and registering the modem via Setup Wizard.

Sending Your First Fax

Procedure for sending a test fax using the installed software.

Installing Other Fax;Data Software

Type of Modem

How to select the correct modem type in communication software.

Initialization String

Setting the AT&F1 or AT&F2 initialization string for modem setup.

Flow Control

Configuring hardware (RTS/CTS) or software (XON/XOFF) flow control.

UART (External Modems)

Determining UART type and its relation to serial port rates.

Using Modem Station

What Does Modem Station Do?

Explains the functionality and benefits of Modem Station utility.

Why Modem Station?

Reasons for using Modem Station over manual commands.

Installing Modem Station

Steps to install Modem Station from the Connections CD-ROM.

Starting Modem Station

How to launch and access the Modem Station main menu.

Using Detect New Modems

Using Modem Station to scan for and identify installed modems.

Using Terminal

Using the Terminal function for direct modem communication and commands.

Modem Configurator

Using the Modem Configurator for advanced settings and troubleshooting.

Data Control

Configuring basic communication settings like port speed and parity.

Connection Control

Adjusting modem connection and transmission settings.

Using Modem to Computer

Controlling modem-computer communication and data display.

Connection Rates

Configuring modem speeds and communication protocols.

Dialing;Answering

Adjusting modem call initiation and reception settings.

Stored Numbers

Managing phone numbers stored in the modem's memory.

Using the Extended Information Screens

Accessing detailed modem information via specific screens.

U.S. Robotics Modem Update Wizard

Installation

Steps to install the Modem Update Wizard from the Connections CD.

Operation

Procedures for running the Modem Update Wizard to update modem code.

Troubleshooting and Online Help Resources

The computer or software will not recognize the modem.

Troubleshooting steps when the modem is not detected by the system.

The modem displays double characters on your monitor.

Diagnosing and resolving issues with garbled characters displayed on the monitor.

The modem won’t go off hook to dial or doesn’t answer the phone.

Solutions for modem dialing or answering failures.

Both modems exchange carrier signals but fail to establish a link.

Troubleshooting connection link establishment failures.

Your x2 modem cannot achieve an x2 Internet connection.

Resolving issues preventing x2 high-speed Internet connections.

Your modem won’t connect at 2400 bps with a 2400 bps modem.

Addressing connection issues at lower speeds with similar modems.

Your screen keeps displaying random garbage characters.

Troubleshooting garbled screen output and character display problems.

Errors are constantly occurring in your V.17 fax transmissions.

Troubleshooting persistent errors during V.17 fax transmissions.

RapidComm fails to initialize the modem.

Resolving issues with RapidComm failing to initialize the modem.

Online Help Resources

Information on accessing online support and resources like the U.S. Robotics BBS.

Connecting to the U.S. Robotics BBS

Step-by-step guide to connect to the U.S. Robotics Bulletin Board System.

Downloading the Technical Reference Guide

Instructions for downloading the Technical Reference Guide.

Technical Quick Reference

Front Panel Lights (External Modems)

Explains the meaning and status of front panel lights on external modems.

Command Summary

Overview of AT commands for modem control and their syntax.

DIP Switches (Modems with DIP Switches Only)

Details the function and settings of DIP switches on modems.

S-Registers

Lists and explains the function of various S-registers for modem configuration.

The Serial Interface

Explains the serial interface standard and pin definitions for modem connectivity.

Regulatory Information

Manufacturer’s Declaration of Conformity

Declaration of product compliance with FCC standards.

Caution to the User

Warning regarding unauthorized modifications to the equipment.

IC (Canada)

Information on digital apparatus compliance with Canadian standards.

UL Listing;CUL Listing

Details UL and CUL listing for IT equipment compatibility.

Connecting to the Telephone Company

Guidelines for connecting the modem to the telephone network.

Fax Branding

Requirements for fax message branding under the Telephone Consumer Protection Act.

Radio and Television Interference

Information on FCC compliance for radio and TV interference.

US Robotics Sportster Specifications

General IconGeneral
ModelSportster
CategoryModem
Fax Transmission RateUp to 14.4 Kbps
Error CorrectionV.42
Data CompressionV.42bis
InterfaceRS-232
ProtocolsV.34
Power SupplyAC adapter

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