u.s. robotics voice modem manual · 2001-10-26 · 5. if you have a free setting, you will see a...

This manual covers installation and operating instructions for the following 3Com® U.S. Robotics®

modems:

Sportster® Voice 33.6 kbps internal modems

3Com, the 3Com logo, U.S. Robotics, the USRobotics logo, and Sportster are registeredtrademarks; Connections, Total Control, Courier, RapidComm, x2, and the x2 logo are trademarksand Towne Square 2000 is a service mark of 3Com Corporation or its subsidiaries. Windows andInternet Explorer are registered trademarks of Microsoft Corp. CompuServe is a registeredtrademark 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, tradenames, or service marks used in this manual are the property of their respective owners.

Copyright © 1997 3Com Corporation or its subsidiaries7770 North Frontage RoadSkokie, IL 60077-2690All Rights Reserved

http://www.3com.com

TABLE OF CONTENTS

ii

Before You Begin (Windows 95 Users) 1Determining Available Resources 1Determining Your Version of Windows 95 2Upgrading to x2 Technology 2

Modem Installation with Windows 3.x 3A Word About COM Ports and IRQs 3How to Use ComTest to Determine Your Modem’s Settings 5Testing an Installed Modem 7What to Do with ComTest’s Recommendation 8How to Change the Modem’s Settings 10How to Insert the Modem into the Computer 12

Modem Installation with Windows 95 19How to Prepare for Plug and Play Installation 19How to Insert the Modem into the Computer 21Installing the Modem Drivers 25

Software Installation and Testing 33Software Installation and Registration Using the Setup Wizard 33Sending Your First Fax 48

TABLE OF CONTENTS

iii

Installing Other Fax/Data Software 52Type of Modem 52Initialization String 52Flow Control 52

U.S. Robotics Modem Update Wizard 53Installation 53Operation 58

Using Modem Station 65Troubleshooting and Online Help Resources 89

When Plug and Play Fails 95Online Help Resources 96Are You Still Having Problems? 100If You Need to Return the Modem to Us 101RapidComm Voice Troubleshooting Tips 102A Note to Users with Older Versions of RapidComm Voice on Their Systems 102

Glossary 103Technical Quick Reference 113

AT Command Summary 114S Registers 128

Regulatory Information 138Manufacturer’s Declaration of Conformity 138

TABLE OF CONTENTS

iv

Caution to the User 139IC (Canada) 139UL Listing/CUL Listing 139Connecting to the Telephone Company 140Fax Branding 140Radio and Television Interference 141For Canadian Modem Users 142Limited Warranty 145

Index 148

BEFORE YOU BEGIN (WINDOWS®

95 USERS)

1

Determining AvailableResources

Your Sportster® Voice modem is a Plug andPlay device. Windows™ 95 can automaticallyidentify a Plug and Play device and determine ifyour system has the resources necessary tosupport the device. However, Plug and Playwill not work if you do not have resourcesavailable or if devices on your system are notreporting resource usage correctly. Here’show you can verify that your system has thenecessary resources before installing themodem:

1. Click the Windows 95 Start button, pointto Settings, and then click Control Panel.

2. Double-click the System icon.

3. When the “System Properties” screenappears, click the Device Manager tab.

4. Double-click Computer and the“Computer Properties” screen appears.

5. Select the option at the top of the screen toshow Interrupt Requests (IRQs).

You will see the IRQs your system is currentlyusing. If IRQs 3, 4, 5, and 7 are being used,you need to free an IRQ before you begininstallation. This process involves moving adevice from the IRQ you want to use to adifferent (and usually higher) IRQ setting.Please read the documentation for (or contactthe manufacturer of) the device that is currentlyusing the IRQ you want to use for your modemto learn more about how to free the IRQ foryour modem.

BEFORE YOU BEGIN (WINDOWS 95 USERS)

2

Determining Your Version ofWindows 95

Follow these steps to determine your versionof Windows 95. This information will beimportant during installation.

1. Click the My Computer icon on yourdesktop with the right mouse button.

2. Click Properties.

3. In the “System Properties” screen, look atthe system information under the Generaltab (circled in the following screen image).The number following the text “MicrosoftWindows 95” will end with “950”, “950a”,or “950b”. This indicates your version ofWindows 95. Write this number on theblank below for later reference. Then clickOK.

Windows 95 version_________________

Upgrading to x2™ TechnologyBe sure to read the section titled “U.S.Robotics Modem Update Wizard” on page 53for information on upgrading your 33.6faxmodem to x2™ technology, allowingdownloads of up to 56 kbps*.• IMPORTANT! All x2 products are capable of 56 kbps

downloads; however, due to FCC rules which restrict poweroutput of the service providers' modems, current downloadspeeds are limited to 53 kbps. Actual speeds may varydepending on line conditions. Uploads from end users to serviceproviders travel at speeds up to 28.8 kbps. An x2 modem, ananalog phone line compatible with x2 technology, and anInternet Service Provider with x2 service are necessary for thesehigh-speed downloads. See http://www.3com.com/x2 for details.

http://www.3com.com/x2

MODEM INSTALLATION WITH WINDOWS®

3.X

3

You’ll need these items from yourSportster ® modem box:

modem phone cord

Connections™ CD microphone

Plus:

a screwdriver (not included)

A Word about COM Portsand IRQsMost computer accessories — a mouse,sound card, enhanced graphics card, scanner,etc. — require a special connection throughwhich they can communicate with thecomputer. For some devices, this connection iscalled a communications (or COM) port. Mostcomputers have 1 or 2 COM ports, but theycan have up to 4. Although internal modemsdo not connect to COM ports directly, they dorequire a COM port setting, which isdetermined by the setting on the modem’sCOM jumper pins.

Each COM port uses an interrupt request(IRQ). An accessory uses an IRQ to get theattention of your computer’s central

MODEM INSTALLATION WITH WINDOWS 3.X

4

processing unit (CPU) so that the accessorycan perform a task. The computer stops whatit’s doing, depending on the priority of therequest, to help the accessory perform its task.When two accessories share an IRQ, it’s liketwo people asking different questions in unisonto a third person. Just as the person beingasked the two questions cannot understandeither request, a computer can lock up orotherwise fail to communicate properly withyour modem when there is an IRQ conflict.

D KEY POINT: Accessories cannotshare COM ports and should not shareIRQs. When accessories try to sharesettings, they will either not workproperly or not work at all. This sectionof the manual will help you understandthe COM/IRQ settings on your newSportster modem.

3Com has set your modem to a default Plugand Play setting geared towards Windows 95users. In this configuration, the shunts used toset your modem’s COM port and IRQ settingsare hanging from single jumper pins and willnot affect your modem’s settings. As aWindows 3.x user, you need to run theComTest program (on the Connections CD) todetermine what settings your modem shoulduse.

NOTE: Some communicationssoftware programs require a particularsetting for your modem (RapidComm,which shipped with your modem, doesnot). If you wish to use a program otherthan RapidComm, now is a good time toread that software’s manual todetermine what setting is required.


5

How to Use ComTest toDetermine Your Modem’sSettings

1. Insert the Connections CD into your CD-ROM drive.

2. In Windows’ Program Manager, click Runon the File menu. Type d:\comtest.exeand press ENTER. This starts ComTest,the program that determines which COMports and IRQs are available for use byyour modem.

3. The screen in the next column appearswhen ComTest starts.

• If there is a modem in your computerwhich you are replacing with your newSportster modem, go to “Testing anInstalled Modem” on page 7 to

determine which COM and IRQ settingsthe older modem is using.

• If a modem is not currently installed inyour computer, click Recommendsettings for a new modem.

Then click Next.


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4. Click Internal Modem. Then click Next.

5. If you have a free setting, you will see ascreen like this.

COM2/IRQ3 is free in this example.ComTest might instead recommendCOM1/IRQ4, COM3/IRQ4, orCOM4/IRQ3 for your modem.

Write down the displayed settings. You’llneed to know these settings later. ClickNext.

If you do not have a free setting, you willsee a screen like this.


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Click Finish to exit ComTest. Go to “Whatto Do with ComTest’s Recommendation”on page 8.

6. When you see this screen, click Finish toexit ComTest.

Go to “What to Do with ComTest’sRecommendation” on page 8.

Testing an Installed ModemIf there is a modem already installed in yourcomputer, you can determine its COM andIRQ settings by selecting the Test aninstalled modem option. Follow theinstructions on screen until you see the screenthat tells you “Testing is complete.” This screenwill also tell you which COM and IRQ settingsyour present modem is using. These are thesettings you want to use for your newSportster modem. Write the settings down.

Turn off and unplug your computer andremove your present modem. Go to “How toChange the Modem’s Settings” on page 10.


8

What to Do with ComTest’sRecommendation

NOTE: If your communicationssoftware requires a modem thatComTest does not recommend, there isa good chance that the setting is beingused by another device in your system.To free that setting in your system,consult your computer’s manual. Go to“How to Change the Modem’s Settings”on page 10.

If ComTest recommended COM1/IRQ4

Write down “COM1” and “IRQ4” somewherewhere it will be handy during softwareinstallation. Go to “How to Change theModem’s Settings” on page 10.

If ComTest recommended COM2/IRQ3

Write “COM2” and “IRQ3” somewherewhere it will be handy during softwareinstallation. Go to “How to Change theModem’s Settings” on page 10.

If ComTest recommended COM3/IRQ4or COM4/IRQ3

Do not use either of these settings. While theCOM port part of the setting is acceptable(ComTest only recommends COM ports thatare not being used), the IRQ part of the settingis not acceptable. When ComTestrecommends either COM3/IRQ4 orCOM4/IRQ3, the IRQ in the setting is beingused by another accessory. You could use thesuggested IRQ for the modem, but you run therisk that the modem and/or the other accessorysharing the IRQ might not work properly.


9

If you do not have a sound card, useCOM3/IRQ5. Write “COM3” and “IRQ5”somewhere where it will be handy duringsoftware installation. You will have to changethe settings on your modem. Go to “How toChange the Modem’s Settings” on page 10.

If you do have a sound card, useCOM2/IRQ3. To use this setting, you have tofirst disable your computer’s second serial port(COM2). This is a pronged socket on theback of your computer.• Go to your computer manufacturer’s

manual.• Find out how to disable the COM port.• Find out which of the sockets on the back

of your computer is the second serial port.• If you have something plugged into that

port, find out if you can plug it insomewhere else. Any accessory plugged

into that port will not work after the porthas been disabled.

• Then return to this point in this manual tocontinue.

After disabling COM2, you can use theCOM2/IRQ3 setting.

Write “COM2” and “IRQ3” somewherewhere it will be handy during softwareinstallation and go to “How to Change theModem’s Settings” on page 10.

If ComTest reports that “You do nothave any available COM ports and/orIRQs”

We recommend you disable COM1 orCOM2. When you disable one of these COMports, you can use it and its default IRQ foryour modem. Go to your computermanufacturer’s manual.


10

• Find out which socket is COM1 and whichis COM2.

• If nothing is plugged into either port, youmay choose either of the ports to disable.Your computer manufacturer’s manual willtell you how to disable the COM port.

• If one port does not have anything pluggedinto it, note if the port is COM1 or COM2.This is the port you’ll want to disable foryour modem.

• If both ports are being used, you may beable to attach one of the plugged-inaccessories elsewhere so that you candisable its COM port. The accessory willnot work once its port is disabled.

If you’ve disabled COM1, you can now usethe COM1/IRQ4 setting. Write it downsomewhere where it will be handy during

software installation. Go to “How to Changethe Modem’s Settings” (on this page).

If you’ve disabled COM2, you can now usethe COM2/IRQ3 setting. Write the settingdown somewhere where it will be handy duringsoftware installation.

How to Change the Modem’sSettings1. Always touch an unpainted metal part of

your computer (the back is usuallyunpainted) to discharge static electricitybefore handling the modem. Static candamage your modem. Then take themodem out of its plastic bag.

2. Find the COM and IRQ jumper shunts(small black plastic pieces) on your


11

modem’s jumper pins (see the followingdiagram).

3. To change the COM port and IRQ settings,you need to reposition the jumper shunts onthe COM port and IRQ pins. To do this, liftthe jumper shunts off the pins.

TIP: Grasp the jumper shunts witha tweezers or needle-nosed pliers. DONOT grasp too firmly, as you may crushthe jumper shunts. If a jumper shuntseems stuck, gently rock it back andforth as you lift. Do not touch any otherpart of the modem or your computerwith the tweezers/pliers. A jumpershunt needs to be sitting on bothjumper pins in order to effectively setthe modem to the desired setting.


12

4. Move the jumper shunt to the new setting.• The COM port setting can involve one

to three shunts. The four possible COMport settings are as follows:

0 1 SEL COM 1

0 1 SEL COM 3

0 1 SELCOM 4

0 1 SELCOM 2

• Unlike most COM port settings, theIRQ setting involves only one jumpershunt. Simply move the jumper shunt tothe pins labeled with the IRQ you need.

How to Insert the Modeminto the Computer

NOTE: Before installing yourmodem, write its serial numbersomewhere where it will be handyduring software installation. (You’llfind the serial number underneath thebar code on the white sticker on themodem and on the outside of the boxthe modem came in.) If you ever needto call our customer supportdepartment, a customer supportrepresentative will ask you for theserial number. This will help him orher identify your modem.


13

1. Turn off your computer and unplug it fromthe electrical outlet.

2. Unplug any peripheral devices (printer,monitor, keyboard, mouse, etc.) from thecomputer.

TIP: Before you unplug anything,label the cords or make a sketch of howthings are connected. This can behelpful when you plug things back inlater.

CAUTION : To avoid the risk ofelectric shock, make sure your computerand all peripheral devices are turned offand unplugged.

3. Remove the screws from your computer’scover and then remove the cover, as shownin the following diagrams. Your computermay differ in appearance from thesediagrams, but the basic principle forremoving the cover should be the same.Contact your computer manufacturer orreview their manual if you need furtherinstructions.


14

4. Find an empty ISA expansion slot at leastas long as the gold edge of your modem.(ISA slots have black plastic grooves linedwith silver.) Unscrew and remove theexpansion slot cover (the long narrow pieceof metal that keeps dust from enteringthrough the opening perpendicular to theslot). Be careful not to drop the screw intothe computer. You will need it later toscrew the modem into place.

5. Holding the modem at each corner, with thegold edge facing the slot, push the modemdown as gently as possible until it snaps intothe expansion slot. (NOTE: The drawingsshow horizontally aligned expansion slots.Some computers have vertically alignedslots. The instructions apply to both styles.)

You need to apply a little pressure to seatthe modem properly. Sometimes a gentleback-and-forth motion helps to fit the


15

modem all the way into the slot. If you feelresistance, the modem may not be properlylined up with the slot. Do not force it intothe slot. Remove the modem and try again.

6. Once the modem is in place, fasten it firmlyusing the screw that you removed in step 4.

7. Replace the computer’s cover and fasten itwith the screws you removed in step 3.

8. If you currently have a phone plugged intothe wall jack you plan to use for themodem, disconnect the phone’s cord fromthe jack.

WARNING : The phone jack you usemust be for an ANALOG phone line (the typefound in most homes). Many office buildingshave digital phone lines. Be sure you know whichtype of line you have. The modem will bedamaged if you use a digital phone line.

9. Plug one end of the phone cord that camewith the modem into the TELCO jack atthe rear of the modem. Plug the other endof the cord into the wall jack.

10. If you wish to use a phone through the linethe modem uses (when the modem is not inuse), plug your phone’s cord into themodem’s PHONE jack.


16

NOTE: You cannot use the modemand a phone at the same time if theyshare the same telephone line.

11. Plug the microphone included with yourmodem into the MIC jack on the modem.

12. To enhance the modem’s full-duplexspeakerphone capabilities, plug a set ofpowered external speakers (not included)into the SPEAKER jack on the modem.

13. If you have your modem set toCOM1/IRQ4 or COM2/IRQ3, go to“Software Installation and Testing” on page33. If you have your modem configured toany other setting, open Program Managerand double-click the Main icon.


17

14. Double-click the Control Panel icon.

15. Double-click the Ports icon.

16. If it’s not already selected, click the COMport for your modem. Then click Settings.

17. Click Advanced.


18

18. In the Interrupt Request Line (IRQ)box, select the IRQ that ComTestrecommended.

19. Click OK.

You will see a brief series of screens after thepreceding screen. Click OK on each screenuntil you see a screen with a Close button.Click Close to exit Program Manager.

You are now ready to install the software onthe Connections CD-ROM (included withyour Sportster modem). Turn to “SoftwareInstallation and Testing” (page 33) for detailedinformation about installing the software,registering the modem, and trying out yourmodem by faxing U.S. Robotics.

MODEM INSTALLATION WITH WINDOWS®

95

19

You will need these items from yourSportster ™ modem box:

modem phone cord

Connections™ CD microphone

Plus:

a screwdriver (not included)

Since your new Sportster is a “Plug and Play”device, Windows 95 may be able to detectyour modem automatically after you plug it intoyour computer. The operating system shoulddo all the work of recognizing the modem foryou.

How to Prepare for Plug andPlay Installation

1. Touch an unpainted metal part of yourcomputer (the back is usually unpainted) todischarge static electricity. Static candamage your modem.

2. Take the modem out of its plastic bag.

MODEM INSTALLATION WITH WINDOWS 95

20

3. Find the jumper shunts (small black plasticpieces) on the COM port and IRQ jumperpins on your modem. They should be inroughly the area indicated in the followingillustration.

When doing a “Plug and Play” installation,the jumper shunts should be placed so thatthey are hanging from single jumper pinsrather than on pairs of pins. Move your

jumper shunts so they are hanging as in thefollowing diagram.

NOTE: If you need to move the jumpershunts, grasp them with a tweezers or a needle-nosed pliers. DO NOT grasp too firmly, however,or you may crush the jumper shunts. If a jumpershunt seems stuck, try gently rocking it back andforth as you lift.


21

How to Insert the Modeminto the Computer

NOTE: Before installing yourmodem, write down its serial number.(You’ll find the serial numberunderneath the bar code on the whitesticker on the modem and on theoutside of the box the modem camein.) If you ever need to call ourcustomer support department, acustomer support representative willask you for the serial number. Thiswill help him or her identify yourSportster modem.

1. Turn off your computer and unplug it fromthe electrical outlet.

2. Unplug any peripheral devices (printer,monitor, keyboard, mouse, etc.) from thecomputer.

TIP: Before you unplug any cords,label them or make a sketch of howthey are connected. This can be helpfulwhen you plug them back in later.

CAUTION : To avoid risk ofelectric shock, make sure your computerand all peripheral devices are turned offand unplugged from electrical outlets.

3. Remove the screws from your computer’scover and then remove the cover, as shown


22

in the following diagrams. Your computermay differ in appearance from thesediagrams, but the basic principle forremoving the cover should be the same.Refer to your computer manufacturer’smanual if you need further instructions.

4. Find an empty ISA expansion slot that’s atleast as long as the gold edge of yourmodem. (ISA slots are black plasticgrooves lined with metal.) Unscrew andremove the expansion slot cover (the longnarrow piece of metal that keeps dust fromentering through the opening perpendicularto the slot).


23

5. Holding the modem at each corner, with thegold edge facing the slot, push the modemdown as gently as possible until it snaps intothe expansion slot. (NOTE: The followingdiagram shows horizontally alignedexpansion slots. Some computers havevertically aligned slots. The instructionsapply to both styles.)

You need to apply a little pressure to seatthe modem properly. Sometimes a gentleback-and-forth motion helps fit the modemall the way into the slot. If you feelresistance, the modem may not be properlylined up with the slot. Do not force it intothe slot. Remove the modem and try again.

6. Once the modem is in the slot, fasten themodem firmly into place using the screwthat you removed in step 4.

7. Replace the computer’s cover and fasten itwith the screws you removed in step 3.

8. Locate the wall jack you plan to use for themodem. If you have a phone plugged into


24

this jack, disconnect the telephone cordfrom the jack.

WARNING : The phone jack youuse must be for an ANALOG phone line(the type found in most homes). Manyoffice buildings have digital phonelines. Be sure you know which type ofline you have. The modem will bedamaged if you use a digital phone line.

9. Plug one end of the phone cord includedwith the modem into the TELCO jack atthe rear of the modem. Plug the other endof the cable into the wall jack.

10. If you wish to use a phone through the linethe modem uses (when the modem is not inuse), plug your phone’s cord into themodem’s PHONE jack.

NOTE: You cannot use the modemand a phone at the same time if theyshare the same telephone line.

11. Plug the microphone included with yourmodem into the MIC jack on the modem.

12. To enhance the modem’s full-duplexspeakerphone capabilities, plug a set ofpowered external speakers (not included)into the SPEAKER jack on the modem.


25

13. Plug the power cords, cables, andperipherals back into the computer and turnon the computer.

Installing the ModemDrivers

NOTE: If you wrote “950b” onpage 2 of this User’s Guide, go to“Installing Modem Drivers withWindows 95 Version 950b” on page 29.Otherwise, follow these instructions.

Installing Modem Drivers withWindows 95 Versions 950 and 950a

1. When Windows 95 restarts, it shoulddetect the modem. If it does, you will seethe following screen.

Click Driver from disk provided byhardware manufacturer. Then click OK.

NOTE: If this screen does notappear, go to the section titled “WhenPlug and Play Fails” on page 95.


26

2. When you see this screen, insert theConnections CD into your CD-ROM driveand type D:\ to replace the A:\. (NOTE: Ifyour CD-ROM drive has a different lettername, type that letter instead of D.)

Click OK. Windows will load the modem’sdrivers.

3. Once Windows finishes loading theinformation from the CD-ROM, you shouldverify that the modem installation was asuccess. When your desktop returns, clickthe Windows Start button and point toSettings. Then click Control Panel.


27

4. Double-click the Modems icon (circled inthe screen image below).

5. In the “Modems Properties” screen, youshould see “Sportster 33600 Voice InternalPnP” listed.


28

This means the installation was a success.Click OK.

NOTE: If you do not see yourmodem listed in the precedingscreen, the Plug and Play installationwas unsuccessful. Please refer to“When Plug and Play Fails” on page95.

6. Next, click the Diagnostics tab at the topof the “Modems Properties” screen. Writedown the COM setting for your modem.(NOTE: Your screen may show a differentsetting than that shown in the followingscreen.) You will need to know this settingwhen you install RapidComm Voice.

Turn to “Software Installation and Testing”(page 33) for detailed information aboutinstalling RapidComm Voice, registering themodem, and trying out your modem byfaxing U.S. Robotics.


29

Installing Modem Drivers withWindows 95 Version 950b

1. When Windows restarts, it should detectthe modem (see following screen image).Insert the Connections CD and click Next.

NOTE: If this screen does notappear, go to the section titled “WhenPlug and Play Fails” on page 95.

2. When you see the following screen, clickFinish.


30

3. Once Windows 95 has installed themodem’s drivers, you will see the followingscreen. This screen tells you whichcommunications port your modem isinstalled to. (NOTE: Your screen mayshow a different COM port.) Make a noteof the COM port setting. You will need thisinformation later when you installing thesoftware on the CD-ROM. Remove theCD from your CD-ROM drive and clickOK. Windows will restart.

4. Once Windows restarts, you should verifythat the modem installation was a success.When your desktop returns, click theWindows Start button and point toSettings. Then click Control Panel.


31

5. Double-click the Modems icon (circled inthe screen image below).

6. In the “Modems Properties” screen, youshould see “Sportster 33600 Voice InternalPnP” listed.


32

This means the installation was a success.Click OK.

NOTE: If you do not see yourmodem listed in the precedingscreen, the Plug and Play installationwas unsuccessful. Please refer to“When Plug and Play Fails” on page95.

7. Next, click the Diagnostics tab at the topof the “Modems Properties” screen. Writedown the COM setting for your modem.(NOTE: Your screen may show a differentsetting than that shown in the followingscreen.) You will need to know this settingwhen you install RapidComm Voice.

Turn to “Software Installation and Testing”(page 33) for detailed information aboutinstalling RapidComm Voice, registering themodem, and trying out your modem byfaxing U.S. Robotics.

SOFTWARE INSTALLATION AND TESTING

33

Software Installation andRegistration Using theSetup WizardThis section guides you through the U.S.Robotics Setup Wizard, the Connections™

CD-ROM interface, and the installation ofRapidComm™ Voice fax/data/voice software.It also shows you how to register and test yournew Sportster modem.

RapidComm Voice fax/data/voice softwaresimplifies sending and receiving faxes directlyfrom your computer desktop. You can buildyour own fax directory, send faxes to specifiedgroups of phone numbers, request individualcover pages when necessary, and sendindividual faxes without exiting your wordprocessing program.

Additionally, RapidComm Voice software letsyou connect to BBSs and other online dataproviders. Take advantage of this access toenter a new world of information andentertainment.

NOTE: The following instructionsapply to Windows 3.x and Windows 95users. However, only Windows 95screens are shown.

NOTE: If you have an olderversion of RapidComm Voice softwareinstalled on your system, uninstall itbefore continuing.


34

1. From the Windows 95 desktop, click theStart button and then click Run.

2. In the text box, type D:\setup.exe. (If yourCD-ROM drive has a letter name otherthan D, type that letter in place of D.)

3. You will briefly see a screen that looks likethis.

4. When you are asked if you wish to run theSetup Wizard, click Yes.


35

5. This is the Setup Wizard’s “Welcome”screen. After reading the screen, clickNext.

6. When you see the following screen, selectyour modem from the list and select thecorrect COM port setting in the Port box.Then click Next.

NOTE: Check the COM portsetting against the setting you wrotedown during the hardware installation.


36

7. When you see the next two screens, fill inthe blank boxes with the appropriateinformation, using the TAB key to movebetween fields. Click Next on each screenwhen you have filled in all of the necessaryinformation.

8. You will see the following screen as theSetup Wizard creates a U.S. RoboticsConnections program group.

9. Next, the Setup Wizard looks for NetscapeNavigator on your system.

If the Setup Wizard does not find NetscapeNavigator, it searches for Microsoft’sInternet Explorer. If the Setup Wizard doesnot find Internet Explorer, it willautomatically install the application later inthe Setup Wizard process.


37

10. The next screen introduces the U.S.Robotics Registration Wizard. After youread the screen, click Next. Read througheach of the next two screens and verify orcorrect the information you typed earlier.Click Next on each screen to move on.


38

11. When you see this screen, you are ready toregister your new modem. Click ByModem. We recommend you choose theBy Modem option because it’s a greatway to verify that your Sportster modem iscorrectly installed.

12. When you see this screen…

• If you need to dial a prefix (such as 9) tomake a call outside your building, typethe prefix before the 1 in the Prefix boxand then click Dial. If the modem stilldoes not dial the number properly, youmay need to insert a comma between theprefix and the 1 to force the modem topause.


39

• If you do not need to dial a prefix,simply click Dial.

13. You will see a screen indicating that theregistration information has been sent (seecircled text in the screen below).

14. The next screen indicates that the SetupWizard is finished. Click OK to launch theConnections CD-ROM.

NOTE: If the Setup Wizard detectedInternet Explorer on your system during thesetup process, your computer will launchthe Connections CD-ROM when you clickOK. Continue at step 15.

If the Setup Wizard DID NOT detectInternet Explorer on your system earlier inthe setup process, it will launch the InternetExplorer installation utility after you clickOK. When you see the following screen,click Install Internet Explorer and followthe on-screen instructions to complete theinstallation of the software.


40

At the end of the installation process, youwill see the following screen. Click Yes.

Windows 95 users: Windows will restartand the Connections CD will launchautomatically upon restart.

Windows 3.x users: Windows willrestart. When your desktop reappears, youwill see a Connections icon (shown below)in the Connections program group.Double-click the icon to launch the CD.


41

15. When the main Connections menu appears,click Business & Productivity on themenu on the left hand side of the screen(circled below).

16. On the Business & Productivity menu isa RapidComm Voice button (circled in thefollowing screen shot). RapidComm Voiceis the fax/data/voice software you can useto send faxes directly from your desktop,transfer files electronically, set up multiplevoice mail boxes, or dial into a BBS. ClickRapidComm Voice.


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17. The next screen contains another menu onthe right hand side of the screen. Includedon the menu is a Learn More & GetSoftware button (circled in the screenimage below). Click this button.

18. The next screen displays information aboutthe RapidComm Voice software. Whenyou are ready to install the RapidCommVoice software, click Install (circled in thelower left hand corner of the followingscreen image).


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NOTE: If you are using NetscapeNavigator to view your Connections CD-ROM, you may be asked to save theapplication’s installer to your computerwhen you click the Install button. Notethe installer’s file name and its locationon your computer. To run the installeror demo, find the file on your computerand double-click it. The installer willstart.

19. The next screen is the first of the“RapidComm Voice Setup” screens. Whenthis screen appears, make sure the locationshown in the text box is where you wouldlike the files copied to and then clickInstall. If you wish to copy theRapidComm Voice files to a different

directory, type that location in the text boxbefore clicking Install.

20. You will see this screen as files are copied.


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21. When you see this screen, click either Yes or No.

• If you click Yes, every document you print will betreated as a fax unless you change the printerselection in the program from which you areprinting.

• If you click No, RapidComm Voice will not beselected as the default printer. When you want tosend a fax, you must select RapidComm Voice asthe printer in the program from which you areprinting.

This screen marks the end of theRapidComm Voice installation. ClickOK to return the Connections.

23. Click Exit (circled in the following screenimage).


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24. Restart Windows by clicking the WindowsStart button and pointing to Shut Down.Click Restart the Computer? on the“Shut Down Windows” screen. Then clickYes.

25. When your desktop appears, clickWindows Start. Point to Programs. Thenpoint to RapidComm Voice.

26. The following is the first “RapidCommVoice Setup Wizard” screen. After youread the screen, click Next.


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27. When you see this screen, verify theinformation shown and then fill in the Databox (if you have a third phone number justfor your modem) and the Local AreaCode box. Then click Next.

28. After you verify the information on thisscreen, click Next.


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29. Select the correct modem in the text boxon the following screen. Then click Next.

30. The next screen allows you to select singleor multiple mailboxes for your personalvoice mail system. Click Single orMultiple and then click Next.


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31. When you see this screen…

• If you want the RapidComm Voiceprogram to launch at Windows startup,select the box to the left of RunRapidComm Voice at Windowsstartup. A check will appear in the box.Then click Finish.

• If you do not want RapidComm Voiceto start every time you start Windows,simply click Finish.

32. You will see this screen.

This is the main RapidComm Voice screen.To send your first fax, keep this screenopen. (After this initial run, RapidCommVoice will not need to be running in order tosend a fax.)

Sending Your First FaxUsing RapidComm Voice software, you cansend and receive faxes directly from yourcomputer and eliminate the need for a faxmachine. Once you learn the basics of sendingfaxes, you can learn more involved fax


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functions, such as sending documents togroups of numbers at assigned times and howto transfer data files. These more advancedfunctions are explained in the electronicRapidComm Voice manual on yourConnections CD. This chapter will walk youthrough sending your first fax.

1. Open an application in which you cancreate documents that you might want tofax (e.g., a word processing application).Create a document containing only asentence or two. Name the documenttester. Keep the document open.

2. From the File menu, click Print.

3. Select RapidComm Voice as the printer.This can be changed in most Windowsapplications in the Print or Printer Setupdialog box.

4. Click OK or Print (whichever button youclick in your application to indicate that youare ready to print) in the Print dialog box.


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5. When you see the following screen, fill inthe necessary information in the text boxes.For testing purposes, send your “tester”document to the 3Com fax number, 847-676-3559.

NOTE: If you need to enter aprefix (such as 9) to dial a numberoutside your building, type the prefixbefore the fax number in the Faxnumber field.

When you finish, click Send Fax.

6. You will see a series of screens as the fax isbeing transmitted. When the fax has beensuccessfully transmitted, you will see ascreen that looks like this.


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Congratulations —you arenow ready to start usingyour Sportster modem!

Go to the electronic RapidComm Voicemanual on your Connections CD for moredetailed instructions on sending faxes and otherthings you can do using your Sportster modemand RapidComm Voice software.

INSTALLING OTHER FAX/DATA SOFTWARE

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Your modem was designed for and testedusing a wide range of communications softwarepackages. This section will guide you throughsome of the details you may need to knowwhen installing communications softwarepackages other than RapidComm Voice(included on the Connections CD-ROM).

Type of ModemMost communications software programs willask you to select the type of modem you areusing. Select a U.S. Robotics Sportster highspeed modem. If that selection is not listed,pick Courier Dual Standard, V.32bis, or V.34.

Initialization StringFor hardware flow control, a fixed serial portrate, and full result codes, type AT&F1 andthen press ENTER. If you must use softwareflow control, type AT&F2 and then pressENTER.

Flow ControlFor hardware flow control (highlyrecommended), select RTS/CTS. Forsoftware flow control, select XON/XOFF.You may need to disable the flow control(hardware or software) that you are not using.

U.S. ROBOTICS MODEM UPDATE WIZARD

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Your Connections™ CD-ROM includes the U.S.Robotics Modem Update Wizard. This softwareis designed to quickly update your modem,whether to a newer version of its current code orto 3Com’s revolutionary new x2™ technology.You can update your modem in any of thefollowing 3 ways:

33.6 K to 33.6 K (update) = FREE33.6 K to 56 K (upgrade) = $FEE*

56 K to 56 K (update) = FREE* Fee for upgrades is subject to change.

NOTE: You can obtain this softwarefrom our BBS (847-982-5092) or from ourWorld Wide Web page (www.3com.com) ifyou do not have a Connections CD-ROM.

NOTE: Complete the instructions inthe Software Installation and Testingsection of this manual before installingthe Modem Update Wizard.

NOTE: These instructions pertain toWindows 3.x and Windows 95. However,only Windows 95 screen shots are shownunless the process for Windows 3.x usersdiffer significantly.

Installation1. Insert the Connections CD-ROM into your

CD-ROM drive.

http://www.3com.com


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2. Click the Windows Start menu and point toPrograms. Point to U.S. RoboticsConnections. Then click Connections.

NOTE: Windows 3.x users launch theCD-ROM by clicking the Connections iconin the Connections program group.

3. From the main Connections menu, clickCustomer Support (circled in the followingscreen shot).


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4. When the Customer Support menu appears,click Modem Update Wizard (circled in thefollowing screen shot).

5. Next, click Learn More & Get Software(circled in the following screen shot).


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6. In the following screen, click Install (circledbelow).

7. This launches the U.S. Robotics ModemUpdate Wizard Installer. The screen thatfollows is the welcome screen for the installer.After you read this screen, click Next.


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8. The next screen indicates where the installerwill store the files for the Update Wizard. If theindicated location is acceptable, click Next.Otherwise, click Browse to find an acceptabledirectory.

9. You will see the following screen for a momentas the installer creates the Modem UpdateWizard program group.

10. This screen indicates that the setup iscomplete. Click OK.


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Operation1. Click the Windows Start button. Point to

Programs. Then point to U.S. RoboticsModem Update Wizard. Finally, clickModem Update Wizard.

2. After you read the “Welcome” screen, clickNext.

3. This brings up the license agreement. Afterreading the license agreement, click Accept tocontinue.


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4. The software will now detect any modemsinstalled on your system. When the detectionphase finishes, you will see the following screen(the modems shown on your screen maydiffer). Click the modem you wish to upgradeand then click Next to continue.

5. The program will now determine if the selectedmodem is software upgradable.

Non-Upgradable Modems

If your modem IS NOT software upgradable,the program will display the following screen.

• Click U.S. Robotics if your modem is aU.S. Robotics modem to learn more aboutyour upgrade options.


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• Click Other to learn more about how topurchase a U.S. Robotics x2 modem.

Upgradable Modems

If the modem IS software upgradable, you willsee the following screen.

Click Dial U.S. Robotics (which should bethe default selection) in the pull-down menu.Click Upgrade to x2 Technology if you wish

to upgrade a 33.6 kbps modem to 56 kbpscode or click Update my modem’s code toupdate your modem with the most recentversion of its original code. Then click Next.

6. The next screen you will see is the orderinformation screen. Users who are purchasinga 56K upgrade will see a screen that includes acredit card information query. Users who areupdating their modem’s code will see apersonal information query screen. Fill in thescreen with the appropriate information andthen click Next.


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7. The following screen dials the U.S. RoboticsUpdate Server. Click Tone or Pulse dialing asnecessary. If you normally dial a prefix (suchas 9) to dial out on your phone line, type thatprefix before the 1 in the Prefix box. Thenclick Dial.

NOTE: Your screen may show adifferent number in the Number field.


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8. Once connected, the server will compareavailable upgrades with the current code inyour modem. If they differ, the server willautomatically initiate the download procedure.

NOTE: Users purchasing a 56K upgrade areasked if the charge is acceptable (see the followingscreen image). Unless you have already beencharged for an upgrade, click Yes to continue. If youhave already been through this process once before,DO NOT click Yes . Click No and call CustomerSupport at 847-982-5151. (The price of the upgradeis subject to change and includes applicable taxes.)

NOTE: If you do not have the most upto date .inf file for your modem (the filethat helps Windows correctly identify yourmodem), you will see the following screenas the Modem Update Wizardautomatically downloads the file.


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9. You will see this screen as the Wizarddownloads the file for your modem.

10. When the download is complete, the modemdisconnects from the server. The words“Downloading file…” change to “Upgrading…” or “Updating …”, depending on whetheryou are upgrading or updating your modem. Anew progress bar appears. This indicates thatyour modem’s code is being updated.

WARNING! To avoid the risk ofdamaging your modem, DO NOT turn offthe modem while it is being updated.

11. When updating is complete, the progress barwill be full and an “Update/UpgradeComplete” message appears. Click Next.


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12. You will see a “Congratulations!” screen.Click Details.

13. Click OK once you verify that the process wasa success. When you return to the“Congratulations!” screen, click Finished.

Congratulations!Enjoy the benefits of your updated Sportstermodem!

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What Does Modem StationDo?♦ Modem Station provides a simple to use

interface that makes communicating withyour modem even easier.

♦ Modem Station allows you to point andclick your way through configuration.

♦ Modem Station can automatically detectyour modem and provide you with all thetechnical information you need, wheneveryou need it!

Why Modem Station?♦ Modem commands can be confusing and

difficult to memorize.♦ Communications software often needs

technical information about your modem.

♦ You may want to “tweak” your modem foroptimum performance.

♦ You’d rather be surfing the Internet.

Installing Modem StationIf you did not install Modem Station when youfirst installed the Connections CD, pleasefollow these instructions.

1. Insert the Connections CD into your CD-ROM drive.

2. Double-click the My Computer icon onyour desktop.

3. Double-click the CD-ROM icon.

4. Double-click the USR Tools folder.

5. Double-click the umssetup icon.

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6. You will be asked whether you wish toinstall Modem Station. Click Yes.

7. Wait a few moments for the InstallationWizard to load.

8. After reading the information on the“Welcome” screen, click Next.

9. When you see this screen, click Next toaccept the default directory or clickBrowse to change directories.

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10. Click Next on the following screen toaccept the default program folder. You canplace Modem Station in an existing folderby selecting one from the list.

11. When you see the following screen, clickFinish to complete the installation.

If this is the first time you’ve installedModem Station, you may be asked torestart your computer.

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Starting Modem Station1. If you didn’t start Modem Station from the

Setup program, please start it now.

2. Click Windows Start button and then pointto Programs. Click U.S. RoboticsModem Station (or the folder youselected during installation).

3. Click the Modem Station icon. This bringsup the main menu.

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The main menu gives you direct access tothe following options:

♦ DETECT NEW MODEMS♦ TERMINAL♦ MODEM CONFIGURATOR♦ ABOUT♦ CONTACT/SUPPORT

DETECT NEW MODEMS

This option detects US Robotics modemsinstalled on your system and shows whatCOM port they are using. Click this option ifyou are running Modem Station for the firsttime, if you are changing modems, or if yousimply need to know what port your modem isusing.

TERMINAL

Terminal allows you to send commandsdirectly to your modem and displays the

responses. You can use Terminal to dial upBBSs. In addition, you can configure yourmodem using Terminal. However, it is mucheasier to use the Modem Configurator.

MODEM CONFIGURATOR

Modem Configurator provides an easy-to-useinterface for entering hard to remembercommands. Use Modem Configurator fortroubleshooting, initial configuration, and tuningyour modem for optimum performance. Usingthe options available in Modem Configurator,you can control nearly every aspect of yourmodem’s performance. We will discussModem Configurator’s options in more detailin later sections.

ABOUT

The About option provides copyright andversion information.

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CONTACT/SUPPORTThis option details how to get in touch withU.S. Robotics.

TIP: For your convenience, weprovide many on-line supportavenues. For specific questions,our fax-on-demand service is agood place to start. You candownload FAQs, software, and helpfiles from our Web sites and BBS,or receive individualized supportvia [email protected]. Type 0000 (4zeroes) in the subject line of youre-mail.

Using Detect New Modems1. Click Detect New Modems to bring up

the following screen.

The screen consists of four columns, one foreach possible COM port on a PC. Youcan scan a specific port(s) by selecting thecheckbox for that port.

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2. Click Scan to have Modem Station checkfor installed modems. This may take a fewmoments.

3. When the scan finishes, you will see thefollowing display. Your display may differdepending on the type and number ofmodems installed.

If your modem is installed and configuredcorrectly, Modem Station will find themodem and display make and modelinformation under the assigned port. Allcurrently active ports should display “PortOK” under the heading. If a port displays a“Port Error”, it usually means that the port isdisabled in system setup.

NOTE: Different systems andBIOSes use different methods ofdisabling COM ports. As a result,we cannot provide support forenabling COM ports. Please referto your system’s documentation orcontact the manufacturer of yoursystem for further information.

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If you look at the information for the port yourmodem is using, you will see three buttons.These allow you to access Terminal andModem Configurator without going back tothe main menu. Extended Information providesdetailed information about your modem,previous connections, firmware dates, etc. Thisnext section details using the Terminal option.

Using TerminalYou can access Terminal from either the Mainmenu or the Detect New Modems screen.Clicking Terminal brings up the Terminalwindow.

In addition to allowing direct entry of modemcommands, the Terminal window also allowsyou to dial into Bulletin Boards, listing services,and other online services.

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NOTE: Modem Station’sTerminal window is providedprimarily for troubleshootingconvenience. If you frequently useBBSs, you will probably want touse a separate, full-featuredTerminal program like the oneprovided in our RapidCommsoftware.

On the lower part of the Terminal screen, youwill see the COM port your modem iscurrently using. To select another modem,simply click on the arrow and select thatmodem’s assigned port.

To the right of the port settings are the portspeed settings. Port speed is the speed atwhich your computer sends data to the

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modem. We will discuss port speed settings indetail later in this section.

Terminal includes a basic auto dialer.

To have Terminal dial a number for you, clickDial to bring up the “Dial” screen.

You need to tell the Dialer a few things aboutyour phone system, such as whether it usestone or pulse dialing, what digit, if any, youneed to dial to get an outside line, and whetherthe dialer should wait between dialing that digitand the rest of the number. Once you providethis information, simply enter the phone numberas if you were dialing a telephone. Click DialNow to dial the number.

You can end a call by clicking Hang Up at thebottom of the screen.

When you are finished using Terminal, clickExit to return to the screen you accessed itfrom.

Using Modem ConfiguratorYou can access Modem Configurator fromeither the Main menu or the Detect NewModems screen.

Click Modem Configurator to bring up thismenu.

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The Modem Configurator menu gives youaccess to the following options:

♦ DATA CONTROL♦ CONNECTION CONTROL♦ MODEM TO COMPUTER♦ CONNECTION RATES♦ DIALING/ANSWERING♦ STORED NUMBERS♦ RESTORE DEFAULTS♦ EXIT

Data Control

This is the “Data Control” screen.

The “Data Control” screen allows you toassign the following basic communicationssettings:

♦ PORT SPEED♦ PARITY♦ STOP BITS♦ WORD♦ FLOW CONTROL♦ SERIAL PORT RATE

For information on using these settings, pleaserefer to the “Glossary” at the back of thismanual.

Click Help for quick definitions of theterminology used in this screen.

In the upper left-hand corner of the screen,you will see the data control commandscurrently in use.

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Once you have entered the Data Controlsettings, click Save to Modem. This storesthe settings so that you do not have to re-enterthem.

This screen also displays the default DIPswitch settings.

TECHNICAL STUFF: DIPswitches are tiny switches thatcontrol a few basic functions onsome external modems. Onmodems without DIP switches,these functions are handled bymodem commands.

Click Exit to return to the ModemConfigurator menu.

CONNECTION CONTROL

This is where you adjust your modem’sconnection and transmission settings.

Click Connection Control to bring up thisscreen.

In the upper left hand corner of this screen,you will find the current Connection Controlsettings.

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Use the “Connections Control” screen toconfigure the following settings:

♦ DATA TERMINAL READY (DTR)♦ ERROR CORRECTION♦ DATA COMPRESSION♦ CARRIER DETECT

For detailed information about these settings,refer to the “Glossary” or the “Technical QuickReference” sections of this manual.

TIP: On external modems,receiving a Data Terminal Ready signalcauses the TR light to light up.

Click Help for quick definitions of terminologyused in this screen.

Once you have configured your ConnectionControl settings, click Save to Modem tosave your settings

Using Modem to ComputerThese settings control how your modem andcomputer communicate with each other. Theycontrol what you see on your terminal screenand how results are displayed.

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If you look in the upper left hand corner of thedisplay, you will see the commands currently inuse.

The “Modem to Computer” screen allows youto configure the following settings:

♦ LOCAL ECHO♦ RESULT CODES♦ RESULT CODE PREFERENCES

TIP: If you type ATDT and see‘AATTDDTT’ on your screen, it ispossible that both your software andmodem have Local Echo set to ‘ON’.Turn Local Echo ‘OFF’ on EITHER themodem or the software to solve thisproblem.

For details on using the commands in thisscreen, refer to the “Glossary” or “TechnicalQuick Reference” sections of this manual.

Click Help to see quick definitions ofterminology used in this screen.

This screen also includes a chart of the waysresult codes can be displayed. Click Codes toview a chart of the display options.

Once you configure your settings, click Saveto Modem to save your choices.

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CONNECTION RATES

The “Connection Rates” screen allows you toconfigure modem speeds and protocols.

WARNING! Use cautionwhen changing connectionsettings. Improper settings maycause your modem to functionincorrectly, disconnect, or fail toconnect at all.

In the upper left hand corner of the screen youwill see the current connection commands.

This screen allows you to configure thefollowing settings:

♦ MODULATIONS♦ V.34 SYMBOL RATES♦ SPEEDS

Again, once you have selected your settings,click Save to Modem to save them.

When you are finished, click Exit to return tothe Modem Configurator menu.

Please refer to the main body of the manualand the “Glossary “for detailed informationabout the terminology and settings used in thisscreen.

Click Help for quick definitions of terminologyused in this screen.

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DIALING/ANSWERING

The next screen allows you to adjust how yourmodem initiates and receives calls.

Using this screen, you can configure thefollowing dial settings:

♦ WAIT FOR CARRIER♦ AUTO-ANSWER # OF RINGS♦ SPEAKER OPERATION♦ DIALING METHOD♦ SPEAKER VOLUME

TECHNICAL STUFF:“Negotiation” is the noise we hearwhen two modems connect. Themodems exchange informationabout their respective protocolsand configurations. Once theyagree on the fastest protocol theycan both handle, transmissionbegins.

STORED NUMBERS

The “Stored Numbers” screen displays thephone numbers currently stored in yourmodem’s memory.

Use this screen to edit or add numbers storedin the modem’s memory.

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To store a number in your modem’s memory,simply click in one of the entry boxes. Type inthe phone number exactly as you would dial it.NOTE: Position Zero has a special feature.You can set your modem to automatically dialthis number when your computer is turned onor when it is reset.

This is very useful if you are using your modemwith a “dumb terminal” or know that you needto connect to a specific bulletin board or listingservice.

You can change stored numbers by highlightingthem and then typing the new numbers in theirplace. Once you store your numbers, you candial them by entering this command fromTerminal Mode:

ATDS0, ATDS1, ATDS2, etc.

Your U.S. Robotics modem comes with onephone number already stored in Position 0. Ifyou haven’t changed the default, typingATDS0 will automatically dial the U.S.Robotics BBS. You will want to change this ifyou are using a dumb terminal or online listingservice, of course.

Once you enter the numbers you wish to store,click Save to Modem to store them. ClickExit to return to the Main menu.

The last option, Restore Defaults, resets yourmodem to factory specifications. This option is

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available from many of the screens withinModem Station. When you click RestoreDefaults, you will see a confirmation screenasking if you aresure you want to restore defaults. Click OK toproceed.

TIP: Restore Defaults will setyour modem back to factoryspecifications. It is a good place tostart when troubleshooting.

Using the ExtendedInformation ScreensThe “Extended Information” screens provideimportant and useful information about yourmodem. Unfortunately, some of thisinformation is very complex.

We devote a separate section to the ExtendedInformation screens so that we can explainwhat you’ll see (and why it is important to you)as fully as possible.

There are a series of commands used to obtaindetailed information from U.S. Roboticsmodems. Extended Information provides aconvenient way to get that importantinformation without memorizing the commands.

From the “Detect New Modems” screen, clickExtended Information.

The “Extended Information” screen providesaccess to the following information about yourmodem:

♦ ROM CHECKSUM♦ PRODUCT♦ ACTIVE PROFILE♦ STORED PROFILE

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♦ CONFIGURATION PROFILE♦ LINK DIAGNOSTICS♦ VxD CONFIGURATION♦ DIAL/SECURITY

Winmodem users will have access to VxDinformation via these screens.

Courier users will have access to Dial/Securityinformation.

Click ROM Checksum to bring up thefollowing screen. Technicians use the ROM Checksum to verify

information stored in the modem’s Read OnlyMemory. You can check the ROM Checksumfrom any Terminal program by typing ATI1and pressing ENTER. For information aboutthe specific modem you are using, clickProduct to bring up the next screen.

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The “Product” screen displays the make andmodel of your modem. It is the equivalent ofthe ATI3 command.

Your modem is able to store twoconfigurations or “profiles.” Only one can beactive at any time.

To see information about the profile in use,click Active Profile to bring up the nextscreen.

This screen contains information about yourmodem’s current configuration. Starting fromthe top, you will see the make and model ofyour modem. Directly below that you will seebasic commands currently in use. Below thatare the current connection settings.

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The two lines below the connection settings arethe advanced commands currently in use.Below them is a display of the contents of the‘S-Registers’ for your modem. These registersare special programmable areas of yourmodem’s memory. They are used to storecommands that are too complex to be handledby the standard (or ‘AT’) commands.

Just below that you will see the last numberdialed. You can also see this information bytyping ATI4 in a Terminal program andpressing ENTER.

The next option displays the “Stored Profile”screen. This screen shows the configurationstored in your modem’s NVRAM (specialprogrammable memory). Note that any storedphone numbers are displayed on this screen aswell. This is the equivalent of the ATI5command. The information displayed is in the

same format as the “Active Profile” screen withthe addition of stored phone numbers.

The next two screens contain information thatour technical support representatives may needif you request support.

Click Configuration to bring up the first ofthese screens.

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The “Configuration” screen displays thefollowing information about your modem.• Product Type displays the information

relating to the make and model of yourmodem.

• Options displays the protocols available toyour modem.

• Fax Options displays your fax compatibility.• Clock Frequency displays the speed of the

tiny “clock” that controls the timing ofoperations within the modem.

• EPROM displays how much informationcan be stored in the EPROM (orSupervisor) chip.

• RAM displays how much memory yourmodem has for processing commands andinternal functions.

• Supervisor Date (or EPROM Date)displays the version date of the ‘firmware’stored in the Supervisor chip. (The

Supervisor chip contains the specialsoftware used to control your modem’sfunctions.) If a support representative asksyou for your Supervisor or EPROM date,look here.

• DSP Date is the date of the ‘firmware’ thatcontrols the DSP in your modem.

• Supervisor and DSP rev (or revisions) arethe equivalent of software version numbers.

TECHNICAL STUFF: TheSupervisor chip contains the commandsthat control your modem. The DSPcontrols execution of those commands.The Supervisor chip needs orders fromthe DSP before it can carry out acommand.

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• DAA Country displays the countries yourmodem is designed for. This is importantbecause phone systems andtelecommunications laws vary from countryto country.

Click Link Diagnostics to bring up the “LinkDiagnostics” screen.

The “Link Diagnostics” screen displaysstatistics about your last connection. Thisscreen is most often used as an aid indiagnosing connection failures, but it also canprovide information about connection speedsand phone line conditions.• Modulation displays the speed and type of

connection.• Carrier Frequency displays the electrical

frequency of the carrier signal.• Symbol Rate displays the speed of the

transmission.• Trellis Code, Nonlinear Encoding, Shaping,

and Precoding all refer to methods ofhandling high speed data transmission.

• The items followed by (dB), (-dB), (-dBm),and (msec) refer to variations in themodulation tones that actually carry theinformation.

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The rest of the screen contains informationabout CRC errors, Block Errors (Blers),resent data, and other data. This information isvery important if you experience problemstransmitting or receiving data or if you suspectproblems with your phone service.

Only our U.S. Robotics Winmodem™

faxmodems use VxDs, or Virtual DeviceDrivers. The Winmodem product uses specialsoftware (called a ‘driver’) to manage many ofthe functions handled by hardware in our othermodems. If you are using a Winmodem, theExtended Information menu will offer you theoption of clicking on VxD to view informationon the Winmodem driver. Please refer to yourWinmodem manual for detailed information onthe Winmodem drivers.

Courier modem users will see a display ofcurrent Dialback/Security settings. Refer to

your Courier documentation for instructions onconfiguring these special features.

We hope that you enjoy exploring the world ofinformation and entertainment your newSportster modem will open up for you and thatModem Station will make using andconfiguring your new modem as simple aspossible.

Remember: If you have any questions orproblems, feel free to visit one of our manyonline forums.For answers to specific questions, be sure tovisit our World Wide Web support site atwww.usr.com/home/online/main.htm, or tryour BBS (847-982-5092).

http://www.usr.com/home/online/index.html

TROUBLESHOOTING AND ONLINE HELP RESOURCES

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PROBLEM DIAGNOSIS POSSIBLE SOLUTION

The computer orsoftware will notrecognize themodem.

Your modem might notbe turned on.

You may not be enteringmodem commands inthe proper manner whilein terminal mode.

You may have a COMport/IRQ conflict.

Make sure the modem is turned on. The power switch is on top of externalmodems. The CS light on the front panel should be lit. If you installed aninternal modem, it should power up when the computer is turned on.

When entering commands in a terminal program, type in all upper case (AT) orall lower case (at).

WINDOWS 95 USERS: Uninstall the modem from your computer. In DeviceManager, determine what COM port and IRQ settings are free on your system.Set the jumper shunts on your modem’s jumper pins to these free settings,using the diagrams below as a guide. If no IRQ setting is available, you mayneed to move a device off of an IRQ in order to free it for use by your modem.

0 1 SEL COM 1

0 1 SEL COM 3

0 1 SELCOM 4

0 1 SELCOM 2

IRQ2 3 4 5 7


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PROBLEM DIAGNOSIS POSSIBLE SOLUTIONThe computer or softwarewill not recognize themodem (cont.).

The modem displays doublecharacters on your monitor.

The modem won’t go offhook to dial or doesn’tanswer the phone.

You may have a COMport/IRQ conflict (cont.).

Both the modem’s andsoftware’s local characterechoes are turned on.

You may have pluggedyour modem’s phone cordinto a digital line.

You might have a badphone cord connection toyour modem.

You may have devicesbetween the modem andthe phone jack.

You may have a poor lineconnection.

Make sure you have the correct COM port and IRQ settings inyour software and/or in the Windows Device Manager.

Disable Local Echo in your software OR on your modem (notboth). Turn local echo off on the modem by typing ATE0 andpressing ENTER in your software’s terminal mode. To turn thelocal echo off in the software, refer to its documentation.

Plugging your modem’s phone cord into a digital phone line candamage the modem. Call your phone company if you are unsurewhether or not your phone line is digital.

The phone cord should be plugged into the TELCO jack on themodem and an analog wall phone jack. The phone cord shouldnot exceed 12 feet in length. Use the phone cord included withyour modem if possible.

There should be no line splitters, fax machines, or other devicesbetween the modem and the wall jack.

Place the call again. Calls are routed differently each time. Toverify a valid phone connection, enter RapidComm’s Terminalmode, type ATX3DT18479825092 (the 3Com BBS), and pressENTER. This string bypasses the dial tone, allowing a connectionif the modem is functioning properly.


91

PROBLEM DIAGNOSIS POSSIBLE SOLUTIONThe modem won’t go offhook to dial or doesn’tanswer the phone (cont.)

Both modems exchangecarrier signals but fail toestablish a link.

Your 33.6 kbps modemcannot achieve a 33.6 kbpsInternet connection.

If you have voice mail,your dial tone may bealtered when messages arewaiting.

Your software may nothave auto answer enabled.

You may have a poor lineconnection.

There may be line splittersor other devices betweenyour modem and thephone jack.

The phone line you arecurrently using may not beclean enough to achieve a33.6 kbps connection.

Answer your voice mail to restore your normal dial tone.

Enable the auto answer feature. In RapidComm’s Terminal mode,type ATS0=1 and press ENTER. NOTE: You need to enable autoanswer before every session unless you alter your software’sinitialization string to permanently enable auto answer.

Try placing the call again. The phone company routes callsdifferently each time. To verify a valid phone connection, enterRapidComm’s Terminal mode and type ATX3DT18479825092and press ENTER (the phone number is the 3Com BBS). Thisstring bypasses the dial tone, allowing a connection if the modemis functioning properly.

Remove all devices between the modem and the phone jack it isusing. Make sure the phone cord you are using is no longer than12 feet in length. Use the phone cord included with yourSportster if possible.

Try using a different phone line. Make sure the phone line youare using is an analog phone line. Using a digital phone line willdamage your modem.


92

PROBLEM DIAGNOSIS POSSIBLE SOLUTIONYour modem won’t connectat 2400 bps with a 2400 bpsmodem.

Your screen keepsdisplaying random garbagecharacters.

The modem you’re tryingto connect with could bean older model thatdoesn’t support errorcontrol.

You could have a conflictwith the remote modem’ssettings for word length,parity, and stop bits.

Your software and modemmight not be set to thesame flow control settings.

The best flow controlsettings might not beenabled on your modem.

You can disable error control on your modem by typing AT&M0in terminal mode and pressing ENTER. Now try placing the callto the remote modem again. When finished, reset your modem toenable the error control features. In terminal mode, type ATZand press ENTER. Note: ATZ4 or AT&F1 are often the best resetstrings, as they restore hardware flow control defaults.

Set your modem’s word length, parity, and stop bits the same asthe remote modem or BBS you are calling. The most commonsettings are: data bits=8. Stop bits=1, parity=none, flowcontrol=hardware (RTS/CTS)

Make sure the software and modem have the same flow controlsettings (hardware [RTS/CTS] and software [xon/xoff]).

In terminal mode, type AT&F1 and press ENTER to load theoptimal settings.


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PROBLEM DIAGNOSIS POSSIBLE SOLUTION

Your communicationssoftware is reporting manycyclic redundancy check(CRC) errors and lowcharacters per second(CPS).

You may have a badphone line.

Optimum flow controlsettings may not beenabled on your modem.

The serial port rate inyour communicationssoftware may be set toohigh for your modem’sUART or your area’sphone lines.

The remote site you aredialing into may havetrouble with the filetransfer protocol.

There may be a Terminateand Stay Resident (TSR)program (such as a screensaver or virus scanner)running in the background,disrupting datacommunications.

Try placing the call again. The phone company routes callsdifferently each time.

In terminal mode, type AT&F1 and press ENTER to load theoptimum hardware flow control settings.

Lower the serial port rate in your communications software to57,600 bps, 38,400 bps, or 19,200 bps. Some software programs,including AOL, allow port rates of 14,400, 28,800, 33,600.These values are invalid and should not be used. NOTE: The portrate for an x2 modem cannot be set lower than 57,600 if youwant to achieve and x2 connection.

Try using a different file transfer protocol. Zmodem is thepreferred protocol.

Disable any Terminate and Stay Resident (TSR) programs runningin the background. If you have software running as a TSR, checkthe software’s manual for information about disabling its abilityto operate as a TSR.


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PROBLEM DIAGNOSIS POSSIBLE SOLUTIONYour communicationssoftware is reporting manycyclic redundancy check(CRC) errors and lowcharacters per second (CPS)(cont.).

Errors are constantlyoccurring in your V.17 faxtransmissions.

RapidComm fails toinitialize the modem.

You may be trying todownload a file to acompressed area of yourhard disk.

Your modem initializationstring could be insufficientfor fax transmissions.

There may be a Terminateand Stay Resident (TSR)program (such as a screensaver or virus scanner)running in the background,disrupting datacommunications.

Your baud rate may be settoo high.

You may be trying to faxa compressed file

RapidComm’s portsettings may be incorrect.

Download to an uncompressed area on your hard drive.

In your communications software, change the modeminitialization string to AT&H3&I2&R2S7=90.

Disable any Terminate and Stay Resident (TSR) programs runningin the background. If you have software running as a TSR, checkthe software’s manual for information about disabling its abilityto operate as a TSR.

Lower baud rate to 9600, 7200, or 4800.

Open the file in the application in which it was created. SelectRapidComm as the printer and then print the file.

Make sure RapidComm’s port settings are correctly set for yourmodem.


95

When Plug and Play FailsIf you have been directed to this section, yourPlug and Play installation was not successful.Try the following possible solutions:

1. Click Windows 95 Start and click ShutDown. When asked if you wish to shutdown your computer, click Yes. WhenWindows 95 indicates that it is safe to turnoff your computer, turn it off and wait 15seconds. Then turn the computer back on.Windows 95 may detect your modemupon this restart even if it did not detectthe modem during the initial installation. Ifyou see screens indicating that newhardware has been detected by Windows95, turn to “Installing the Modem Drivers”on page xx. If not, continue with the nextstep.

2. Click Windows 95 Start, point toSettings, and click Control Panel.Double-click the System icon and thenclick the Device Manager tab on the“System Properties” screen. Look for“Other Devices” or “Unknown Devices”in the list that appears. If you do not seeeither of these options in the list, continuewith the next section to learn about oursupport options. If you do see one ofthese options, double-click the option. Ifthe description that appears matches themodem you are trying to install, click theRemove button. Click OK whenWindows asks if you wish to remove thedevice. Next, restart the computer asdescribed in step 1 on this page. If thecomputer does not detect the modemafter this second restart, please continue


96

reading to learn about our supportoptions.

Online Help ResourcesConnecting to the 3Com BBS

To connect to the 3Com Bulletin BoardSystem, follow these steps:

1. Start the RapidComm Voice program.The software settings for the BBS are:

ANSI terminal emulationData Bits: 8Parity: NoneStop Bits: 1

2. Put RapidComm Voice in Terminal modeby clicking on the Terminal button.

3. Type ATDS0 and press ENTER.

NOTE: ATDS0 automatically dials1-847-982-5092, the 3Com BBS.

If this is your first time connecting to ourBBS, you will be asked to enter your name,create a password of your choice, and to fillout a questionnaire.


97

The preceding screen shot is what theintroduction screen of the 3Com BBS willlook like. The BBS gives you access tocustomer and technical support documentsand the BBS library which contains hundredsof helpful files and tips to help simplify usingyour modem.

Downloading the User’s Guide

To download theUser’s Guide, follow thesesteps:

1. In the main menu, type D.

2. A Filename to Download: text box

appears on the screen.


98

3. Type the name of the file you wish toreceive. You have three manual formatsfrom which to choose:

• VOICE336.EXE—The guide in a self-extracting Word for Windows v6.0format.

• VOICE336.PDF—The guide in .pdfformat (readable using AdobeAcrobat, which is available on theConnections CD-ROM).

4. Protocol Type for Transfer. Yourselection depends on what your softwaresupports. If possible, make Zmodem yourfirst choice.

5. Depending on the software you are using,you will either be prompted where youwant the file placed, or the file will beplaced in the directory where yourcommunications software is loaded.

6. When the file transfer is complete, andyou are ready to leave the BBS, type G(for Good-bye) from the main menu.

3Com offers a number of other onlinetechnical support options for our U.S.Robotics Sportster modems. Choose anyone of the following options if you need helpwith or want to learn more about your newmodem.


99

Internet FTP

Provides free library containing the same filesas the BBS site. FTP to ftp.usr.com.

Internet on Demand

Provides automatic technical support througha library containing product information,quick reference cards, and installation help.To obtain an index of available documents,send a blanke-mail to [email protected]. To have adocument e-mailed to you, send thedocument's number as the subject.

World Wide Web

A U.S. Robotics Home Page containing thesame information as the Internet on Demandlisting. Log on to:www.usr.com/home/online/main.htm

CompuServe

Access the same information as the InternetFTP site. Connect through the US RoboticsForum or e-mail us through CompuServeMail for a response within 24 hours. TheU.S. Robotics forum address is GOUSROBOTICS. Address private messagesto 76711,707.

America Online

Go to the Keyword field and typeUSROBOTICS to connect to various U.S.Robotics resources, such as file libraries,message boards, online customer support,and product announcements.

Technical Support Hotline

Technical questions about U.S. Roboticsmodems can also be answered by technicalsupport representatives. The hotline is a toll

http://www.usr.com/home/online/index.html


100

call. In order to save both time and expense,you should do the following before calling:

1. Click the Windows 95 Start button.

2. Point to Programs and then clickRapidComm Voice. (If you have notinstalled RapidComm Voice, see thesection title “Software Installation andTesting” on page 33.)

3. Enter RapidComm Voice’s terminal modeby clicking the Terminal button.

4. Type ATI7 and press ENTER.

5. The information that appears will be usefulto the technical support representativewho attempts to troubleshoot yourproblem when you call. Select Print fromthe File menu or leave the information onscreen.

Hotline (847) 982-5151

(Hours: 8:00 am - 6:00 pm CST)

Priority No-Hold Service

3Com also staffs its own 900 fee-basednumber for immediate assistance. These linesare staffed from 8 a.m. - 6 p.m. CSTMonday through Friday.No-Hold line 900-555-USR1

There is a $1.50 per minute charge which willappear on your local phone bill. You must be18 or older or have parental permission.(Service not available in Canada.)

Are You Still HavingProblems?• Review this manual.• Call or visit your modem dealer. They

may be able to assist you. This is much


101

more efficient and time-saving thanreturning the modem to U.S. Robotics.

• If your dealer can't help you, contact3Com Customer Support. When youcall, specify your modem serial number(found on the modem and on the outsideof the box), the software being used, and,if possible, have the contents of yourATI7 screen available.

If You Need to Return theModem to UsContact 3Com Customer Support. If thesupport representative determines that youneed to return the modem, you will receive anSRO (Service Repair Order) number. Youmust have an SRO number before returningthe modem to us. Ship the unit, postage paid,in a strong box made of corrugated

cardboard with plenty of packing material.DO NOT send the modem back in theoriginal box. Send ONLY the modem (NOTthe power supply, manuals, CD-ROM, etc.).Include your SRO number, name, andaddress on the shipping label as well as insidethe package. If possible, send the packagevia a courier capable of tracking the progressof the shipment. Ship to the followingaddress:

3ComAttn: RMA

SRO#6201 W. Oakton, East Dock

Morton Grove, IL 60053


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RapidComm TroubleshootingTipsPROBLEM: The lights in the RapidCommVoice software’s modem light monitor do notcorrespond to the actual lights on an externalmodem.DIAGNOSIS: Under certain circumstances,the modem light monitor does not correctlyreport the activity of the modem. We areaware of this problem and are working torectify the situation in upcoming versions ofthe software.

PROBLEM: The station ID worksintermittently.DIAGNOSIS: Under certain circumstances(including receiving a fax), the station ID maynot work properly.

PROBLEM: RapidComm Voice does notwork properly at 115.2 kbps.DIAGNOSIS: The presence of diskcompression software on your systemhampers the RapidComm Voice software’sability to work properly at 115.2 kbps.Removal of the disk compression softwarefrom your system will allow RapidCommVoice to operate properly at 115.2 kbps.

A Note to User’s with OlderVersions of RapidComm Voiceon Their SystemsYou must uninstall older versions ofRapidComm Voice from your system beforeinstalling the most recent version (contained onthe CD-ROM that came with your newmodem). Otherwise you may introduceconflicts in your system that will hamper theRapidComm Voice software’s ability to workproperly.

GLOSSARY

103

Cross references are printed in boldface. Cross referenceswith items in the Command Summary, found in theTechnical Quick Reference (Section D), are printed initalics.

analog loopbackA modem self-test in which data from the keyboard or aninternal test pattern is sent to the modem's transmitter,turned into analog form, looped back to the receiver, andconverted back into digital form.

analog signalsA variety of signals and wavelengths that can betransmitted over communications lines such as the soundof a voice over the phone line.

answer modeThe mode used by your modem when answering anincoming call from an originating modem. Thetransmit/receive frequencies are the reverse of theoriginating modem, which is in originate mode.

applicationA computer program designed to perform a specific taskor set of tasks. Examples include word processing andspreadsheet applications.

ARQAutomatic Repeat reQuest. A function that allows yourmodem to detect flawed data and request that it beretransmitted. See MNP and V.42.

ASCIIAmerican Standard Code for Information Interchange. Acode used to represent letters, numbers, and specialcharacters such as $, !, and /.

asynchronous transmissionData transmission in which the length of time betweentransmitted characters may vary. Because characters maynot be transmitted at set intervals, start/stop bits are usedto mark the beginning and end of each character.

GLOSSARY

104

auto answerSets the modem to pick up the phone line when it detectsa certain number of rings. See S-register S0 in the“Technical Quick Reference.”

auto dialA process where your modem dials a call for you. Thedialing process is initiated by sending an ATDT (dial tone)or ATDP (dial pulse) command followed by the telephonenumber. Auto dial is used to dial voice numbers. Seecommand Dn.

baud rateA term used to measure the speed of an analogtransmission from one point to another. Although nottechnically accurate, baud rate is commonly used to meanbit rate.

binary digitA 0 or 1, reflecting the use of the binary numberingsystem. Used because the computer recognizes either oftwo states, OFF or ON. Shortened form of binary digit isbit.

bit rateAlso referred to as transmission rate. The number ofbinary digits, or bits, transmitted per second (bps).Communications channels using analog modems areestablished at set bit rates, commonly 2400, 4800, 9600,14,400, 28,800 and higher.

bits per second (bps)The bits (binary digits) per second rate. Thousands ofbits per second are expressed as kilobits per second(kbps).

bufferA temporary memory area used as storage during inputand output operations. An example is the modem'scommand buffer.

byteA group of binary digits stored and operated upon as aunit. Most often the term refers to 8-bit units orcharacters. One kilobyte (KB) is equal to 1,024 bytes orcharacters; 640 KB is equal to 655,360 bytes or characters.

GLOSSARY

105

carrierThe basic signal altered or modulated by the modem inorder to carry information.

characterA representation, coded in binary digits, of a letter,number, or other symbol.

characters per second (CPS)A data transfer rate generally estimated from the bit rateand the character length. For example, at 2400 bps, 8-bitcharacters with start/stop bits (for a total of ten bits percharacter) will be transmitted at a rate of approximately240 characters per second (cps). Some protocols, such aserror-control protocols, employ advanced techniques suchas longer transmission frames and data compression toincrease cps.

class 1 and 2.0International standards used by fax application programsand faxmodems for sending and receiving faxes.

cyclic redundancy checking (CRC)An error-detection technique consisting of a testperformed on each block or frame of data by both sendingand receiving modems. The sending modem inserts theresults of its tests in each data block in the form of a CRCcode. The receiving modem compares its results with thereceived CRC code and responds with either a positive ornegative acknowledgment.

data communicationsThe transmission or sharing of data between computers viaan electronic medium.

data compression tableA table containing values assigned for each characterduring a call under MNP5 data compression. Defaultvalues in the table are continually altered and built duringeach call: The longer the table, the more efficientthroughput gained.

GLOSSARY

106

data modeMode used by a modem when sending and receiving datafiles.

DCEData Communications (or Circuit-Terminating)Equipment, such as dial-up modems that establish andcontrol the data link via the telephone network.

defaultAny setting assumed, at startup or reset, by thecomputer's software and attached devices. The computeror software will use these settings until changed by theuser or other software.

detect phaseIn the ITU-T V.42 error-control protocol, the first stage inestablishing if both modems attempting to connect haveV.42 capability.

dictionaryThe term used for compression codes built by the V.42 bisdata compression algorithm.

digital loopbackA test that checks the modem's RS-232 interface and thecable that connects the terminal or computer and themodem. The modem receives data (in the form of digitalsignals) from the computer or terminal, and immediatelyreturns the data to the screen for verification.

digital signalsDiscrete, uniform signals. In this manual, the term refers tothe binary digits 0 and 1.

DTEData Terminal (or Terminating) Equipment. A computerthat generates or is the final destination of data.

duplexIndicates a communications channel capable of carryingsignals in both directions. See half duplex, full duplex.

GLOSSARY

107

Electronic Industries Association (EIA)Group which defines electronic standards in the U.S.

error controlVarious techniques that check the reliability of characters(parity) or blocks of data. V.42 and MNP error-controlprotocols use error detection (CRC) and retransmission offlawed frames (ARQ).

facsimileA method for transmitting the image on a page from onepoint to another. Commonly referred to as fax.

fax modeThe mode used by a modem to send and receive data infacsimile format. See definitions for V.17, V.27ter, V.29.

flow controlA mechanism that compensates for differences in the flowof data into and out of a modem or other device. Seecommands &Hn, &In, &Rn.

frameA data communications term for a block of data withheader and trailer information attached. The addedinformation usually includes a frame number, block sizedata, error-check codes, and Start/End indicators.

full duplexSignals can flow in both directions at the same time overone line. In microcomputer communications, may refer tothe suppression of the online local echo.

half duplexSignals can flow in both directions, but only one way at atime. In microcomputer communications, may refer toactivation of the online local echo, which causes themodem to send a copy of the transmitted data to thescreen of the sending computer.

GLOSSARY

108

HzHertz, a frequency measurement unit used internationallyto indicate cycles per second.

ITU-TAn international organization that defines standards fortelegraphic and telephone equipment. For example, theBell 212A standard for 1200-bps communication in NorthAmerica is observed internationally as ITU-T V.22. For2400-bps communication, most U.S. manufacturersobserve V.22 bis.

LAPMLink Access Procedure for Modems. An error-controlprotocol defined in ITU-T Recommendation V.42. Likethe MNP protocols, LAPM uses cyclic redundancychecking (CRC) and retransmission of corrupted data(ARQ) to ensure data reliability.

local echoA modem feature that enables the modem to displaykeyboard commands and transmitted data on the screen.See command En.

MNPMicrocom Networking Protocol, an error-control protocoldeveloped by Microcom, Inc., and now in the publicdomain. There are several different MNP protocols, butthe most commonly used one ensures error-freetransmission through error detection (CRC) andretransmission of flawed frames.

modemA device that transmits/receives computer data through acommunications channel such as radio or telephone lines.It also changes signals received from the phone line back todigital signals before passing them to the receivingcomputer.

nonvolatile memory (NVRAM)User-programmable random access memory whose data isretained when power is turned off. On the Sportstermodem, it includes four stored phone numbers and themodem settings.

off/on hookModem operations that are the equivalent of manuallylifting a phone receiver (taking it off-hook) and replacing it(going on-hook).

GLOSSARY

109

online fall back/fall forwardA feature that allows high-speed, error-control modems tomonitor line quality and fall back to the next lower speedin a defined range if line quality diminishes. As lineconditions improve, the modems switch up to the nexthigher speed.

originate modeThe mode used by your modem when initiating anoutgoing call to a destination modem. The transmit/receivefrequencies are the reverse of the called modem, which is inanswer mode.

parityA simple error-detection method that checks the validityof a transmitted character. Character checking has beensurpassed by more reliable and efficient forms of errorchecking, including V.42 and MNP 2-4 protocols. Eitherthe same type of parity must be used by twocommunicating computers, or both may omit parity.

protocolA system of rules and procedures governingcommunications between two or more devices. Protocolsvary, but communicating devices must follow the sameprotocol in order to exchange data. The format of the data,readiness to receive or send, error detection and errorcorrection are some of the operations that may be definedin protocols.

RAMRandom Access Memory. Memory that is available foruse when the modem is turned on, but that clears of allinformation when the power is turned off. The modem'sRAM holds the current operational settings, a flowcontrol buffer, and a command buffer.

remote digital loopbackA test that checks the phone link and a remote modem'stransmitter and receiver.

remote echoA copy of the data received by the remote system,returned to the sending system, and displayed on thescreen. Remote echoing is a function of the remote system.

GLOSSARY

110

ROMRead Only Memory. Permanent memory, not user-programmable.

serial transmissionThe consecutive flow of data in a single channel. Compareto parallel transmissions where data flows simultaneouslyin multiple channels.

start/stop bitsThe signaling bits attached to a character before and afterthe character is transmitted during asynchronoustransmission.

terminalA device whose keyboard and display are used for sendingand receiving data over a communications link. Differsfrom a microcomputer or a mainframe in that it has little orno internal processing capabilities.

terminal modeSoftware mode that allows direct communication with themodem. Also known as command mode.

throughputThe amount of actual user data transmitted per secondwithout the overhead of protocol information such asstart/stop bits or frame headers and trailers. Comparewith characters per second.

V.8The ITU-T standard specification that covers the initialhandshaking process.

V.17 faxAn ITU-T standard for making facsimile connections at14,400 bps, 12,000 bps, 9,600 bps, and 7,200 bps.

V.21An ITU-T standard for modems operating inasynchronous mode at speeds up to 300 bps, full-duplex,on public switched telephone networks.

V.22An ITU-T standard for modem communications at 1200bps, compatible with the Bell 212A standard observed inthe U.S. and Canada.

GLOSSARY

111

V.22 bisAn ITU-T standard for modem communications at 2400bps. The standard includes an automatic link negotiationfallback to 1200 bps and compatibility with Bell212A/V.22 modems.

V.27 terAn ITU-T standard for facsimile operations that specifiesmodulation at 4800 bps, with fallback to 2400 bps.

V.29An ITU-T standard for facsimile operations that specifiesmodulation at 9600 bps, with fallback to 7200 bps.

V.32An ITU-T standard for modem communications at 9600bps and 4800 bps. V.32 modems fall back to 4800 bpswhen line quality is impaired.

V.32 bisAn ITU-T standard that extends the V.32 connectionrange: 4800, 7200, 9600, 12,000, and 14,400 bps. V.32 bismodems fall back to the next lower speed when linequality is impaired, fall back further as necessary, and also

fall forward (switch back up) when line conditionsimprove (see online fall back/fall forward).

V.34An ITU-T standard that currently allows data rates as highas 28,800 bps.

V.34+An enhancement to V.34 that enables data transfer rates ashigh as 33,600 bps.

V.42An ITU-T standard for modem communications thatdefines a two-stage process of detection and negotiationfor LAPM error control.

V.42 bisAn extension of ITU-T V.42 that defines a specific datacompression scheme for use during V.42 connections.

GLOSSARY

112

XmodemThe first of a family of error control software protocolsused to transfer files between modems. These protocolsare in the public domain and are available from manybulletin board services.

XON/XOFFStandard ASCII control characters used to tell anintelligent device to stop/resume transmitting data.

YmodemAn error-checking protocol that can send several files ofdata at a time in 1024-byte (1K) blocks. This protocol canuse either checksums or CRC for error checking.

Ymodem GSimilar to Ymodem, except it includes no error checking,which makes it faster.

ZmodemSimilar to Xmodem and Ymodem, except it includes batchtransfer, the ability to recover from a partially completetransfer, an autostart feature, and improved efficiency.

TECHNICAL QUICK REFERENCE

113

This section includes information about:

• AT Command Summary• S-Registers


114

AT Command Summary• Type commands in either upper or lower case, not a combination. Use the

Backspace key to delete errors. (You cannot delete the original AT command sinceit is stored in the modem buffer.)

• If a command has numeric options and you don’t include a number, zero isassumed. For example, if you type ATB, the command ATB0 is assumed.

• Every command except A/, A>, and +++ must begin with the AT prefix and be enteredby pressing ENTER.

• The maximum command length is 58 characters. The modem doesn’t count the AT prefix,carriage returns, or spaces.

NOTE: All defaults are based on the &F1Hardware Flow Control templateloaded in NVRAM when the modem is shipped. Defaults are listed in italics.


115

Command Set$ Use in conjunction with D, S,

or & commands (or just AT)to display a basic commandlist; online help.

A Manual Answer: goes off hookin answer mode. Pressing anykey aborts the operations.

A/ Re-executes the last issuedcommand. Used mainly toredial. This does not requirethe AT prefix or a CarriageReturn.

A> Re-executes the last-issuedcommand continually.

Any key Aborts off-hook dial/answeroperation and hangs up.

AT Required command prefix, except with A/ and +++. Use alone to test for OK result code.

Bn U.S./ITU-T answersequence.

B0 ITU-T answersequence

B1 U.S. answer tone

Dn Dials the specified phonenumber. Includes thefollowing:

L Dials the last dialednumber.

P Pulse (rotary) dialR Originates call using

answer (reverse)frequencies.


116

Sn Dials the phonenumber string stored inNVRAM at position n(n = 0−3). Phonenumbers are storedwith the &Zn=scommand.

T Tone dial, (Comma) Pause, See

S8 definition; whichit’s linked to.

; (Semicolon) Return toCommand mode afterdialing.

“ Dials the letters thatfollow (in analphabetical phonenumber).

! (Exclamation point)Flashes the switchhook.

/ Delays for 125 ms.before proceeding withdial string.

W Wait for second dialtone (X2 or X4);linked to S6 register.

@ Dials, waits for quietanswer, and continues(X3 or higher).

$ Displays a list of Dialcommands.

En Sets local echo.

E0 Echo OFFE1 Modem displays

keyboard commands


117

Fn Sets online local echo oftransmitted data ON/OFF.

F0 Local echo ON.Modem sends a copyof data it sends to theremote system to yourscreen.

F1 Local echo OFF.Receiving system maysend a remote echo ofdata it receives.

Hn Controls ON/OFF hook.

H0 Hangs up (goes onhook).

H1 Goes off hook.

In Displays the followinginformation.

I0 Four-digit productcode

I1 Results of ROMchecksum

I2 Results of RAMchecksum

I3 Product typeI4 Current modem

settingsI5 Nonvolatile memory

(NVRAM) settingsI6 Link diagnosticsI7 Product configuration

Ln Controls speaker volume(internals only).

L0 Low volumeL1 Low volumeL2 Medium volumeL3 High volume


118

Mn Operates speaker.

M0 Speaker always OFF.M1 Speaker ON until

CONNECT.M2 Speaker always ON.M3 Speaker ON after dial,

until CONNECT.

On Returns online.

O0 Returns online.O1 Returns online and

retrains.

P Sets pulse dial (for phonelines that don’t supporttouch-tone dialing).

Qn Displays/suppresses resultcodes.

Q0 Displays result codes.

Q1 Quiet mode; no resultcodes.

Q2 Displays result codesonly in Originate mode.

Sr.b=n Sets bit .b of register r to n(0/OFF or 1/ON).

Sr=n Sets register r to n.

Sr? Displays contents of S-Register r.

S$ Displays a list of the S-Registers.

T Sets tone dial.

Vn Displays verbal/numericresult codes.V0 Numeric codesV1 Verbal codes


119

Xn Sets result code displayed. Default is X4.Xn Setting

Result Codes X0 X1 X2 X3 X4

0/OK • • • • •1/CONNECT • • • • •2/RING • • • • •3/NO CARRIER • • • • •4/ERROR • • • • •5/CONNECT 1200 • • • •6/NO DIAL TONE • •7/BUSY • •8/NO ANSWER* • •9/RESERVED10/CONNECT 2400 • • • •11/RINGING •13/CONNECT 9600 • • • •18/CONNECT 4800 • • • •20/CONNECT 7200 • • • •21/CONNECT 12000 • • • •25/CONNECT 14400 • • • •43/CONNECT 16800 • • • •85/CONNECT 19200 • • • •91/CONNECT 21600 • • • •99/CONNECT 24000 • • • •103/CONNECT 26400 • • • •107/CONNECT 28800 • • • •151/CONNECT 31200 • • • •155/CONNECT 33600 • • • • •


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Xn (continued)Xn Result Codes (cont.) X0 X1 X2 X3 X4

Adaptive Dialing • • •Wait for 2nd Dial Tone (W) • •Wait for Answer (@) • •Fast Dial • •*Requires @ in dial string; replaces NO CARRIER


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Yn Selects power-on/resetdefault configuration.

Y0 Default is profile 0setting in NVRAM

Y1 Default is profile 1setting in NVRAM

Z Resets modem.

Z0 Resets modem toNVRAM profileselected by Ycommand or dip 7.

Z1 Resets modem toNVRAM profile 0

Z2 Resets modem toNVRAM profile 1

Z3 Resets modem tofactory default profile0 (&F0)



&$ Displays a list ofampersand (&) commands.

&A Enables/disables additionalresult code subsets (seeXn).

&A0 ARQ result codesdisabled

&A1 ARQ result codesenabled

&A2 V.32 modulationindicator added


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&A3 Protocol indicatorsaddedLAPM/MNP/NONE(error control) andV42bis/MNP5 (datacompression)

&Bn Manages modem’s serialport rate.

&B0 Variable, followsconnection rate

&B1 Fixed serial port rate&B2 Fixed in ARQ mode,

variable in non-ARQmode

&Cn Controls Carrier Detect(CD) signal.

&C0 CD override&C1 Normal CD operations

&Dn Controls Data TerminalReady (DTR) operations.

&D0 DTR override&D1 DTR toggle causes

online Commandmode

&D2 Normal DTRoperations

&D3 Resets on receipt ofDTR

&Fn Loads a read-only (non-programmable) factoryconfiguration.

&F0 Generic template&F1 Hardware flow control

template&F2 Software flow control

template


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&Gn Sets Guard Tone.

&G0 No guard tone, U.S.and Canada

&G1 550 Hz guard tone,some Europeancountries, requires B0setting.

&G2 1800 Hz guard tone,U.K., requires B0setting.

&Hn Sets Transmit Data (TD)flow control (see also &Rn).

&H0 Flow control disabled&H1 Hardware flow

control, Clear to Send(CTS)

&H2 Software flow control,XON/XOFF

&H3 Hardware andsoftware flow control

&In Sets Receive Data (RD)software flow control (seealso &Rn).

&I0 Software flow controldisabled

&I1 XON/XOFF signals toyour modem andremote system

&I2 XON/XOFF signals toyour modem only

&Kn Enables/disables datacompression.

&K0 Data compressiondisabled

&K1 Auto enable/disable&K2 Data compression

enabled


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&K3 MNP5 compressiondisabled

&Mn Sets Error Control (ARQ)for connections at 1200 bpsand higher.&M0 Normal mode, error

control disabled&M1 Reserved&M2 Reserved&M3 Reserved&M4 Normal/ARQ&M5 ARQ mode

&Nn Sets connect speed. Ifconnection cannot beestablished at this speed,the modem will hang up.Sets ceiling connect speed if&Un is greater than 0. See&Un.

&N0 Variable rate&N1 300 bps&N2 1200 bps&N3 2400 bps&N4 4800 bps&N5 7200 bps&N6 9600 bps&N7 12,000 bps&N8 14,400 bps&N9 16,800 bps&N10 19,200 bps&N11 21,600 bps&N12 24,000 bps&N13 26,400 bps&N14 28,800 bps&N15 31,200 bps&N16 33,600 bps


125

&Pn Sets pulse (rotary) dialmake/break ratio.

&P0 U.S./Canada ratio,39%/61%

&P1 U.K. ratio, 33%/67%

&Rn Sets Receive Data (RD)hardware flow control,Request to Send (RTS) (seealso &Hn).

&R0 Reserved&R1 Modem ignores RTS&R2 Received Data to

computer only on RTS

&Sn Controls Data Set Ready(DSR) operations.

&S0 DSR override; alwaysON

&S1 Modem controls DSR

&Tn Begins test modes (used inconjunction with s register18).

&T0 Ends testing&T1 Analog Loopback&T2 Reserved&T3 Local Digital

Loopback&T4 Enables Remote

Digital Loopback&T5 Prohibits Remote

Digital Loopback&T6 Initiates Remote Digital

Loopback&T7 Remote Digital with

self-test and errordetector


126

&T8 Analog Loopback withself-test and errordetector

&Un Sets floor connect speedwhen &Un is set greaterthan 0. &Nn is the ceilingconnect speed. See &Nn.

&U0 Disabled&U1 300 bps&U2 1200 bps&U3 2400 bps&U4 4800 bps&U5 7200 bps&U6 9600 bps&U7 12,000 bps&U8 14,400 bps&U9 16,800 bps&U10 19,200 bps&U11 21,600 bps

&U12 24,000 bps&U13 26,400 bps&U14 28,800 bps&U15 31,200 bps&U16 33,600 bps

&Wn Writes currentconfiguration to NVRAMtemplates.

&W0 Modifies the NVRAM0 template (Y0)

&W1 Modifies the NVRAM1 template (Y1)

&Yn Sets break handling.

&Y0 Destructive, butdoesn’t send break

&Y1 Destructive, expedited&Y2 Nondestructive,

expedited


127

&Y3 Nondestructive,unexpedited

&Zn=s Writes phone number strings to NVRAM at position n(n = 0−3).

&Zn=L Writes last executed dialstring to NVRAM atposition n (n = 0−3).

&Zn? Displays the phone numberstored at position n (n = 0−3).

&ZL? Displays the last executeddial string.

#CID=n Controls Caller IDfeature.

#CID=0Caller ID disabled.#CID=1 Caller ID enabled.

#CID=2 Caller ID enabled withextended information,including caller’s name.

+++ Escapes to online-commandmode.


128

S RegistersTo change a setting, use the ATSr=n command, where r is the register and n is a decimalvalue from 0 − 255 (unless otherwise indicated).

Register Default FunctionS0 0 Sets the number of rings on which to answer in Auto Answer Mode. When set to

0, Auto Answer is disabled.

S1 0 Counts and stores the number of rings from an incoming call. (S0 must be greaterthan 0.)

S2 43 Stores the ASCII decimal code for the escape code character. Default character is+. A value of 128 – 255 disables the escape code.

S3 13 Stores the ASCII code for the Carriage Return character. Valid range is 0 –127.

S4 10 Stores the ASCII decimal code for the Line Feed character. Valid range is 0 –127.

S5 8 Stores the ASCII decimal code for the Backspace character. A value of 128−255 disables the Backspace key’s delete function.


129

Register Default FunctionS6 2 Sets the number of seconds the modem waits before dialing. If Xn is set to X2 or

X4, this is the time-out length if there isn't a dial tone.

S7 60 Sets the number of seconds the modem waits for a carrier. May be set for muchlonger duration if, for example, the modem is originating an international connection.

S8 2 Sets the duration, in seconds, for the pause (,) option in the Dial command.

S9 6 Sets the required duration, in tenths of a second, of the remote modem’s carriersignal before recognition by the Sportster modem.

S10 7 Sets the duration, in tenths of a second, that the modem waits to hang up after lossof carrier. This guard time allows the modem to distinguish between a linedisturbance from a true disconnect (hang up) by the remote modem.

While we don’t recommend connecting the modem to a line with call waiting, if youhave it, you may wish to adjust this setting upward to prevent the modem frommisinterpreting the second call signal as a disconnect by the remote modem.


130

Register Default Function S10 (cont.) A better alternative is to ask your phone company how to temporarily disable call

waiting (usually *70W). For example: ATDT *70W phone number.

Note: If you set S10 = 255, the modem will not hang up when carrier is lost.Dropping DTR hangs up the modem.

S11 70 Sets the duration and spacing, in milliseconds, for tone dialing.

S12 50 Sets the duration, in fiftieths of a second, of the guard time for the escape codesequence (+++).

S13 0 Bit-mapped register. Select the bit(s) you want on and set S13 to the total of thevalues in the Value column. For example, ATS13 = 17 enables bit 0 (value is 1) andbit 4 (value is 16).

Bit Value Result0 1 Reset when DTR drops.1 2 Reset non-MNP transmit buffer from 1.5K to 128

bytes.*2 4 Set backspace key to delete.3 8 On DTR signal, auto dial the number stored in

NVRAM at position 0.


131

Register Default Function S13 (cont.) Bit Value Result

4 16 At power on/reset, Auto Dial the number stored inNVRAM at position 0.

5 32 Reserved6 64 Disable quick retrains.7 128 Disconnect on escape code.

* The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem- and Ymodem-type file transfer protocolswithout using flow control.The 128-byte option lets remote users with slower modems keep data you’re sending from scrolling off theirscreens. When remote users send your computer an XOFF (Ctrl-S) and you stop transmitting, the data in transitfrom your modem’s buffer doesn’t exceed the size of their screen.This is also very helpful in situations when a remote modem/printer application is losing characters.

S15 0 Bit-mapped register setup. To set the register, see instructions for S13.

Bit Value Result0 1 Disable ARQ/MNP for V.22.1 2 Disable ARQ/MNP for V.22bis.2 4 Disable ARQ/MNP V.32/V.32bis/V.32terbo.3 8 Disable MNP handshake.4 16 Disable MNP level 4.5 32 Disable MNP level 3.


132

Register Default Function S15 (cont.) Bit Value Result

6 64 MNP incompatibility.7 128 Disable V.42 operation.To disable V.42 detect phase, select the total of the values for bits 3and 7.

S16 0 Bit-mapped register setup. To set the register, see instructions for S13.Bit Value Result0 1 Reserved1 2 Reserved2 4 Touch tone test.4 8 Use internal test pattern.

S18 0 Test timer for &T loopback testing. Sets the time in seconds of testing before themodem automatically times out and terminates the test. When set to 0, the timer isdisabled. Valid range is 1-255.

S19 0 Sets the duration, in minutes, for the inactivity timer. The timer activates when there is no data activity onthe phone line; at time-out the modem hangs up. S19 = 0 disables the timer.

S21 10 Sets the length, in 10-millisecond units, of breaks sent from the modem to the computer; applies to MNPor V.42 mode only.


133

Register Default FunctionS22 17 Stores the ASCII decimal code for the XON character.

S23 19 Stores the ASCII decimal code for the XOFF character.

S25 20 Sets the duration, in hundredths of a second, that DTR must be dropped so that themodem doesn’t interpret a random glitch as a DTR loss. (Most users will want touse the default; this register is useful for setting compatibility with older systemsrunning under older operating software.)

S27 0 Bit-mapped register setup. To set the register, see instructions for S13.

Bit Value Result0 1 Enables ITU-T V.21 modulation at 300 bps for overseas calls; in

V.21 mode, the modem answers both overseas and domestic(U.S. and Canada) calls, but only originates V.21 calls. (DefaultBell 103)

1 2 Enables unencoded (non-trellis coded) modulation in V.32 mode.2 4 Disables V.32 modulation.3 8 Disables 2100 Hz answer tone to allow two V.42 modems to

connect faster.4 16 Enables V.23 fallback mode.5 32 Disables V.32bis mode.6 64 Disable V.42 selective reject.


134

Register Default FunctionS27 (cont.) Bit Value Result

7 128 Software compatibility mode. This setting disables thecodes and displays the 9600 code instead. The actualrate of the call can be viewed on the ATI6 screen.Used for unusual software incompatibilities. Somesoftware may not accept 7200, 12,000, and 14,400bps or greater result codes.

S28 0 Eliminates the V.32 answer tones for a faster connection.

8 Default item, all times are in tenths of seconds.

255 Disables all connections except V.32 at 9600 bps.

S29 20 Sets the duration, in tenths of a second, of the V.21 answer mode fallback timer.

S30 - Reserved

S31 - Reserved

S32 2 Bit-mapped register setup. To set the register, see the instructions for S13.

Bit Value Result0 1 V.8 Call Indicate enabled.1 2 Enables V.8 mode.


135


2 4 Reserved.3 8 Disable V.34 modulation.4 16 Disable V.34+ modulation.5-7 32-128 Reserved.

S33 0 Bit-mapped register setup. To set the register, see the instructions for S13.

Bit Value Result0 1 Disable 2400 symbol rate.1 2 Disable 2743 symbol rate.2 4 Disable 2800 symbol rate.3 8 Disable 3000 symbol rate.4 16 Disable 3200 symbol rate.5 32 Disable 3429 symbol rate.6 64 Reserved7 128 Disable shaping.

S34 0 Bit-mapped register setup. To set registers, see instructions for S13.

Bit Value Result0 1 Disable 8S-2D trellis encoding.1 2 Disable 16S-4D trellis encoding.


136


2 4 Disable 32S-2D trellis encoding.3 8 Disable 64S-4D trellis encoding.4 16 Disable non-linear coding.5 32 Disable TX level deviation.6 64 Disable Pre-emphasis.7 128 Disable Pre-coding.

S35 0 Bit-mapped register setup. To set registers, see instructions for S13.Bit Value Result0-2 1-7 Limit back channel rate.

1 = 28800 max.2 = 26400 max.3 = 24000 max.4 = 21600 max.5 = 19200 max.6 = 16800 max.7 = 14400 max.

3 8 Force RBS operation4-7 12-128 Reserved.


137

Register Default FunctionS38 0 Sets an optional delay, in seconds, before a forced hang-up and clearing of the

Transmit buffer when DTR drops during an ARQ call. This allows time for aremote modem to acknowledge receipt of all transmitted data before it isdisconnected. The modem immediately hangs up when DTR drops. This optiononly applies to connections terminated by dropping DTR. If the modem receives theATH command, it ignores S38 and immediately hangs up.

S39-S40 Reserved

S41 0 Bit-mapped register setup. To set registers, see instructions for S13.

Bit Value Result0 1 Distinctive ring enabled.1-7 2-128 Reserved

REGULATORY INFORMATION

138

Manufacturer’s Declarationof Conformity3Com7770 North Frontage RoadSkokie, Illinois 60077-2690U.S.A.

declares that the product U.S. RoboticsSportster Voice 33600 Internal Faxmodemconforms to the FCC’s specifications:

Part 15, Class B:Operation is subject to the following twoconditions:

(1) this device may not cause harmfulelectromagnetic interference, and

(2) this device must accept any interference

received including interference that may causeundesired operations.

Part 68:This equipment complies with FCC Rules Part68. Located on the bottom of the modem isthe FCC Registration Number and RingerEquivalence Number (REN). You mustprovide this information to the telephonecompany when requested.

The REN is used to determine the number ofdevices you may legally connect to yourtelephone line. In most areas, the sum of theREN of all devices connected to one line mustnot exceed five (5.0). You should contact yourtelephone company to determine the maximumREN for your calling area.


139

This equipment uses the following USOCjacks: RJ-11C.

This equipment may not be used on coinservice provided by the telephone company.Connection to party lines is subject to statetariffs.

An FCC compliant telephone cord andmodular plug are provided with this equipment,which is designed to connect to the telephonenetwork or premises wiring using a Part 68compliant compatible jack. See installationinstructions for details.

Caution to the UserThe user is cautioned that any changes ormodifications not expressly approved by theparty responsible for compliance could voidthe user’s authority to operate the equipment.

IC (Canada)This digital apparatus does not exceed theClass B limits for radio noise emissions fromdigital apparatus set out in the interference-causing equipment standard entitled DigitalApparatus, ICES-003 of Industry Canada.Cet appareil numérique respecte les limites debruits radioélectriques applicables auxappareils numériques de Classe B préscritesdans la norme sur le matériel brouilleur:Appareils Numériques, NMB-003 édictée parl'Industrie Canada.

UL Listing/CUL ListingThis information technology equipment is UL-Listed and CUL-Listed for use with UL-Listedpersonal computers that have installationinstructions detailing user installation of cardcage accessories.


140

Connecting to the Telephone CompanyIt is not necessary to notify the telephonecompany before installing the modem.However, the telephone company mayrequest the telephone number(s) to which theSportster modem is connected and thedeclaration of conformity to FCC Parts 15and Part 68 on the first page of this section.

Be sure that the telephone line you areconnecting the modem to is a standardanalog line and not a digital (PBX), party, orcoin telephone line.

If the modem is malfunctioning, it may affectthe telephone lines. In this case, disconnectthe modem until the source of the difficulty istraced.

Fax BrandingThe Telephone Consumer Protection Act of1991 makes it unlawful for any person to use acomputer or other electronic device, includingfax machines, to send any message unless suchmessage clearly contains in a margin at the topor bottom of each transmitted page or on thefirst page of the transmission, the date and timeit is sent, an identification of the business orother entity, or other individual sending themessage, and the telephone number of thesending machine or of such business, otherentity, or individual. (The telephone numberprovided may not be a 900 number or anyother number for which charges exceed localor long-distance transmission charges.)

In order to program this information into yourSportster modem, refer to the RapidCommmanual on the CD-ROM that shipped with


141

your modem. If you’re using a differentcommunications software program, refer to itsmanual.

Radio and Television InterferenceThis equipment generates and uses radiofrequency energy and if not installed and usedproperly, in strict accordance with themanufacturer’s instructions, may causeinterference to radio and television reception.This modem complies with FCC Part 15,Class B of the FCC rules for digital devices.These rules are designed to provide reasonableprotection against radio frequency interferencefrom a digital device in a residential installation.

However, there is no guarantee thatinterference will not occur in a particularinstallation. If this device does causeinterference to radio or television reception,

which you can determine by monitoringreception when the modem is installed andwhen it is removed from the computer, try tocorrect the problem with one or more of thefollowing measures:

• Reorient the receiving antenna (fortelevisions with antenna reception only) orcable input device.

• Relocate the computer with respect to thereceiver.

• Relocate the computer and/or the receiverso that they are on separate branch circuits.

If necessary, consult your dealer or anexperienced radio/television technician foradditional suggestions. You may find thefollowing booklet, prepared by the FederalCommunications Commission, helpful:


142

How to Identify and Resolve Radio-TV Interference ProblemsStock No. 004-000-0345-4U.S. Government Printing OfficeWashington, DC 20402

In accordance with Part 15 of the FCC rules,the user is cautioned that any changes ormodifications to the equipment described inthis manual that are not expressly approved by3Com could void the user’s authority tooperate the equipment.

For Canadian Modem UsersNOTICE: The Industry Canada (IC) labelidentifies certified equipment. This certificationmeans the equipment meets certaintelecommunications network protective,operational, and safety

requirements as prescribed in the appropriateTerminal Equipment Technical Requirementsdocument(s). The Department does notguarantee the equipment will operate to theuser’s satisfaction.

Before installing this equipment, users shouldensure that it is permissible to be connected tothe facilities of the local telecommunicationscompany. The equipment must also be installedusing an acceptable method of connection. Insome cases, the company’s inside wiringassociated with a single-line, individual servicemay be extended by means of a certifiedconnector assembly (telephone extensioncord.) The customer should be aware thatcompliance with the above conditions may notprevent degradation of service in somesituations. Currently, telecommunicationcompanies do not allow users to connect their


143

equipment to jacks except in precise situationsthat are spelled out in tariffing arrangementswith those companies.

Repairs to certified equipment should becoordinated by a representative designated bythe supplier. Any repairs or alterations madeby the user to this equipment, or equipmentmalfunctions, may give the telecommunicationscompany cause to request the user todisconnect the equipment.

For your own protection, make sure that theelectrical ground connections of the powerutility, telephone lines, and internal metallicwater pipe system, if present, are connectedtogether. This precaution may be particularlyimportant in rural areas.CAUTION: Do NOT attempt to make suchconnections yourself. Instead contact an

electric inspection authority or electrician, asappropriate.

NOTICE: The Ringer Equivalence Number(REN) assigned to each terminal deviceprovides an indication of the maximum numberof terminals allowed to be connected to atelephone interface. The termination on aninterface may consist of any combination ofdevices subject only to the requirement that thesum of the Ringer Equivalence Numbers of allthe devices does not exceed 5.

The Ringer Equivalence Number is located onthe bottom of the modem’s case (externalmodems) or on the modem’s circuit board(internal modems).WARRANTY AND REPAIR SERVICECENTER:


144

Keating Technologies25 Royal Crest Court, Suite 200Markham, ONT L3R 9X4

«AVIS : L'étiquette d'Industrie Canadaidentifie le matériel homologué. Cette étiquettecertifie que le matériel est conforme auxnormes de protection, d'exploitation et desécurité des réseaux de télécommunications,comme le prescrivent les documentsconcernant les exigences techniques relativesau matériel terminal. Le Ministère n'assuretoutefois pas que le matériel fonctionnera à lasatisfaction de l'utilisateur.

Avant d'installer ce matériel, l'utilisateur doits'assurer qu'il est permis de le raccorder auxinstallations de l'entreprise locale detélécommunication. Le matériel doit égalementêtre installé en suivant une méthode acceptée

de raccordement. L'abonné ne doit pas oublierqu'il est possible que la conformité auxconditions énoncées cidessus n'empêche pas ladégradation du service dans certainessituations.

Les réparations de matériel homologué doiventêtre coordonnées par un représentant désignépar le fournisseur. L'entreprise detélécommunications peut demander àl'utilisateur de débrancher un appareil à la suitede réparations ou de modifications effectuéespar l'utilisateur ou à cause de mauvaisfonctionnement.

Pour sa propre protection, l'utilisateur doits'assurer que tous les fils de mise à la terre dela source d'énergie électrique, des lignestéléphoniques et des canalisations d'eaumétalliques, s'il y en a, sont raccordés


145

ensemble. Cette précaution estparticulièrement importante dans les régionsrurales.Avertissement: L'utilisateur ne doit pas tenterde faire ces raccordements lui même; il doitavoir recours à un service d'inspection desinstallations électriques, ou à un électricien,selon le cas.

«AVIS : L'indice d'équivalence de lasonnerie (IES) assigné à chaque dispositifterminal indique le nombre maximal determinaux qui peuvent être raccordés à uneinterface. La terminaison d'une interfacetéléphonique peut consister en unecombinaison de quelques dispositifs, à la seulecondition que la somme d'indices d'équivalencede la sonnerie de tous les dispositifs n'excèdepas 5.»

Centre de guarantie et de service après-vente:

Keating Technologies25 Royal Crest Court, Suite 200Markham, ONT L3R 9X4

Limited Warranty

U.S. Robotics Access Corp., a subsidiaryof 3Com Corporation, warrants to theoriginal end-user purchaser that thisproduct will be free from defects inmaterials and workmanship for a period offive years from the date of purchase. Duringthe limited warranty period, and upon proofof purchase, the product will be repaired orreplaced (with the same or a similar model,which may be a refurbished model) at U.S.Robotics’ option, without charge for eitherparts or labor. This limited warranty shallnot apply if the product is modified,


146

tampered with, misused, or subjected toabnormal working conditions (including, butnot limited to, lightning and water damage).

THIS LIMITED WARRANTY DOESNOT GUARANTEE YOUUNINTERRUPTED SERVICE. REPAIROR REPLACEMENT AS PROVIDEDUNDER THIS LIMITED WARRANTYIS THE EXCLUSIVE REMEDY OF THEPURCHASER. THIS LIMITEDWARRANTY IS IN LIEU OF ALLOTHER WARRANTIES, EXPRESS ORIMPLIED, INCLUDING, BUT NOTLIMITED TO, ANY IMPLIEDWARRANTY OFMERCHANTABILITY OR FITNESSFOR A PARTICULAR USE ORPURPOSE. U.S. ROBOTICS SHALL INNO EVENT BE LIABLE FOR ANY

SPECIAL, INDIRECT, INCIDENTAL,PUNITIVE, OR CONSEQUENTIALDAMAGES OF ANY KIND ORCHARACTER, INCLUDING,WITHOUT LIMITATION, LOSS OFREVENUE OR PROFITS, FAILURE TOREALIZE SAVINGS OR OTHERBENEFITS, LOSS OF DATA OR USE,DAMAGE TO EQUIPMENT, ANDCLAIMS AGAINST THE PURCHASERBY ANY THIRD PERSON, EVEN IFU.S. ROBOTICS HAS BEEN ADVISEDOF THE POSSIBILITY OF SUCHDAMAGES.

This limited warranty gives you specificlegal rights. You may have others, whichvary from state to state.

Some states do not allow limitations onduration of an implied warranty, or the


147

exclusion or limitation of incidental orconsequential damages, so the aboveexclusion or limitation may not apply toyou.

To obtain service under this limited warranty,contact the 3Com Technical SupportDepartment at 847-982-5151 or by mail at3Com, 7770 N. Frontage Road, Attn.:Technical Support Dept., Skokie, Illinois60077-2690. You will be given a ServiceRepair Order (“SRO”) number to help 3Comkeep track of your limited warranty request.Once you have received your SRO number,take or send the product, postage prepaid andinsured, to 3Com, Attn: RMA, [your SRO#],6201 W. Oakton, East Dock, Morton Grove,IL 60053. Pack the modem in a strongcorrugated cardboard box with plenty ofpacking material. DO NOT send the modem

back in its original box. DO NOT sendanything but the modem (do not send back thepower supply, CD-ROM, documentation,etc.). If possible, send the modem via a couriercapable of tracking the progress of theshipment. Include proof of the date ofpurchase. IMPORTANT: If you send yourunit, pack it securely, and be sure that yourSRO number is visible on the outside of thepackage.

INDEX

148

AAmerica Online, U.S. Robotics online supportand, 99analog phone lines, vs. digital, 15, 24AOL. See America Online, U.S. Roboticsonline support and

BBBS, 3Com, 96-98

Ccharacters per second (cps)

low, errors and, 93-94COM ports

conflicts, 89-90and Plug and Play installations, 19-20

CompuServe, U.S. Robotics online supportand, 99

Connections CD-ROMModem Update Wizard, 53-64software installation, 33-50

Ddrivers, modem

installing, 25-32

Eerror control

disabling, 92

Ffaxing with RapidComm Voice software, 48-50flow control, 51FTP, U.S. Robotics online support and, 98

Index

149

IIRQs, 1, 3-12, 20

conflicts, 89-90ISA expansion slots, 14, 22

Jjumper pins, 10-12, 20jumper shunts, 10-12, 20

Mmicrophone installation, 16, 24modem installation

Plug and Play, 19-32With Windows 3.x, 3-18

Modem Update Wizard, 53-64installing, 53-57using, 58-64

Oonline help resources, 96-100

Pparity, 92Plug and Play installation, 19-32

failures, 95

RRapidComm Voice software

faxing with, 48-50installing, 33-50troubleshooting, 101

Sserial number, modem, 12, 21shunts, jumper, 10-12, 20speakerphone feature, 16, 24

Index

150

TTechnical Support Hotline, 99terminal mode, 96, 99Terminate and Stay Resident programs, errorsand, 93, 94troubleshooting, 89-94

RapidComm Voice software, 101-102TSR. See Terminate and Stay Residentprograms

Uupgrading/updating modems, 53-64

VV.17 fax transmissions, errors and, 94

WWindows 95

determining your version, 2World Wide Web (WWW), 3Com onlinesupport and, 96-100

Xx2 technology, 2, 53-64

u.s. robotics voice modem manual · 2001-10-26 · 5. if you have a free setting, you will see a...

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