Page 1 Connections, Total Control, Courier, RapidComm, x2, and the x2 logo are trademarks and Towne Square 2000 is a service mark of 3Com Corporation or its subsidiaries. Windows and Internet Explorer are registered trademarks of Microsoft Corp. CompuServe is a registered trademark of CompuServe Inc.
Page 2: Table Of Contents
Before You Begin (Windows 95 Users) Determining Available Resources Determining Your Version of Windows 95 Upgrading to x2 Technology Modem Installation with Windows 3.x A Word About COM Ports and IRQs How to Use ComTest to Determine Your Modem’s Settings Testing an Installed Modem What to Do with ComTest’s Recommendation How to Change the Modem’s Settings...
Page 3 Installing Other Fax/Data Software Type of Modem Initialization String Flow Control U.S. Robotics Modem Update Wizard Installation Operation Using Modem Station Troubleshooting and Online Help Resources When Plug and Play Fails Online Help Resources Are You Still Having Problems? If You Need to Return the Modem to Us RapidComm Voice Troubleshooting Tips A Note to Users with Older Versions of RapidComm Voice on Their Systems Glossary...
Page 4 Caution to the User IC (Canada) UL Listing/CUL Listing Connecting to the Telephone Company Fax Branding Radio and Television Interference For Canadian Modem Users Limited Warranty Index ABLE OF ONTENTS...
Page 5: Before You Begin (Windows 95 Users)
EFORE Determining Available Resources ® Your Sportster Voice modem is a Plug and ™ Play device. Windows 95 can automatically identify a Plug and Play device and determine if your system has the resources necessary to support the device. However, Plug and Play will not work if you do not have resources available or if devices on your system are not reporting resource usage correctly.
Page 6: Determining Your Version Of Windows 95
28.8 kbps. An x2 modem, an analog phone line compatible with x2 technology, and an Internet Service Provider with x2 service are necessary for these high-speed downloads. See http://www.3com.com/x2 for details. SERS ™ Technology ™...
Page 7: Modem Installation With Windows 3
ODEM NSTALLATION WITH You’ll need these items from your ® Sportster modem box: modem ™ Connections Plus: a screwdriver (not included) A Word about COM Ports and IRQs Most computer accessories — a mouse, sound card, enhanced graphics card, scanner, etc.
Page 8 Sportster modem. ODEM NSTALLATION WITH INDOWS 3Com has set your modem to a default Plug and Play setting geared towards Windows 95 users. In this configuration, the shunts used to set your modem’s COM port and IRQ settings are hanging from single jumper pins and will not affect your modem’s settings.
Page 9: How To Use Comtest To Determine Your Modem's Settings
How to Use ComTest to Determine Your Modem’s Settings 1. Insert the Connections CD into your CD- ROM drive. 2. In Windows’ Program Manager, click Run on the File menu. Type d:\comtest.exe and press ENTER. This starts ComTest, the program that determines which COM ports and IRQs are available for use by your modem.
Page 10 4. Click Internal Modem. Then click Next. 5. If you have a free setting, you will see a screen like this. ODEM NSTALLATION WITH INDOWS COM2/IRQ3 is free in this example. ComTest might instead recommend COM1/IRQ4, COM3/IRQ4, or COM4/IRQ3 for your modem. Write down the displayed settings.
Page 11: Testing An Installed Modem
Click Finish to exit ComTest. Go to “What to Do with ComTest’s Recommendation” on page 8. 6. When you see this screen, click Finish to exit ComTest. Go to “What to Do with ComTest’s Recommendation” on page 8. ODEM NSTALLATION WITH INDOWS Testing an Installed Modem If there is a modem already installed in your...
Page 12: What To Do With Comtest's Recommendation
What to Do with ComTest’s Recommendation NOTE: If your communications software requires a modem that ComTest does not recommend, there is a good chance that the setting is being used by another device in your system. To free that setting in your system, consult your computer’s manual.
Page 13 If you do not have a sound card, use COM3/IRQ5. Write “COM3” and “IRQ5” somewhere where it will be handy during software installation. You will have to change the settings on your modem. Go to “How to Change the Modem’s Settings” on page 10. If you do have a sound card, use COM2/IRQ3.
Page 14: How To Change The Modem's Settings
Find out which socket is COM1 and which is COM2. If nothing is plugged into either port, you may choose either of the ports to disable. Your computer manufacturer’s manual will tell you how to disable the COM port. If one port does not have anything plugged into it, note if the port is COM1 or COM2.
Page 15 modem’s jumper pins (see the following diagram). 3. To change the COM port and IRQ settings, you need to reposition the jumper shunts on the COM port and IRQ pins. To do this, lift the jumper shunts off the pins. ODEM NSTALLATION WITH INDOWS...
Page 16: How To Insert The Modem Into The Computer
4. Move the jumper shunt to the new setting. The COM port setting can involve one to three shunts. The four possible COM port settings are as follows: COM 1 COM 2 COM 3 COM 4 Unlike most COM port settings, the IRQ setting involves only one jumper shunt.
Page 17 1. Turn off your computer and unplug it from the electrical outlet. 2. Unplug any peripheral devices (printer, monitor, keyboard, mouse, etc.) from the computer. TIP: Before you unplug anything, label the cords or make a sketch of how things are connected. This can be helpful when you plug things back in later.
Page 18 4. Find an empty ISA expansion slot at least as long as the gold edge of your modem. (ISA slots have black plastic grooves lined with silver.) Unscrew and remove the expansion slot cover (the long narrow piece of metal that keeps dust from entering through the opening perpendicular to the slot).
Page 19 modem all the way into the slot. If you feel resistance, the modem may not be properly lined up with the slot. Do not force it into the slot. Remove the modem and try again. 6. Once the modem is in place, fasten it firmly using the screw that you removed in step 4.
Page 20 NOTE: You cannot use the modem and a phone at the same time if they share the same telephone line. 11. Plug the microphone included with your modem into the MIC jack on the modem. 12. To enhance the modem’s full-duplex speakerphone capabilities, plug a set of powered external speakers (not included) into the SPEAKER jack on the modem.
Page 21 14. Double-click the Control Panel icon. 15. Double-click the Ports icon. ODEM NSTALLATION WITH INDOWS 16. If it’s not already selected, click the COM port for your modem. Then click Settings. 17. Click Advanced.
Page 22 18. In the Interrupt Request Line (IRQ) box, select the IRQ that ComTest recommended. 19. Click OK. ODEM NSTALLATION WITH INDOWS You will see a brief series of screens after the preceding screen. Click OK on each screen until you see a screen with a Close button. Click Close to exit Program Manager.
Page 23: Modem Installation With Windows 95
ODEM NSTALLATION WITH You will need these items from your ™ Sportster modem box: modem ™ Connections Plus: a screwdriver (not included) Since your new Sportster is a “Plug and Play” device, Windows 95 may be able to detect your modem automatically after you plug it into your computer.
Page 24 3. Find the jumper shunts (small black plastic pieces) on the COM port and IRQ jumper pins on your modem. They should be in roughly the area indicated in the following illustration. When doing a “Plug and Play” installation, the jumper shunts should be placed so that they are hanging from single jumper pins rather than on pairs of pins.
Page 25: How To Insert The Modem Into The Computer
How to Insert the Modem into the Computer NOTE: Before installing your modem, write down its serial number. (You’ll find the serial number underneath the bar code on the white sticker on the modem and on the outside of the box the modem came in.) If you ever need to call our customer support department, a customer support representative will...
Page 26 in the following diagrams. Your computer may differ in appearance from these diagrams, but the basic principle for removing the cover should be the same. Refer to your computer manufacturer’s manual if you need further instructions. ODEM NSTALLATION WITH INDOWS 4.
Page 27 5. Holding the modem at each corner, with the gold edge facing the slot, push the modem down as gently as possible until it snaps into the expansion slot. (NOTE: The following diagram shows horizontally aligned expansion slots. Some computers have vertically aligned slots.
Page 28 this jack, disconnect the telephone cord from the jack. WARNING : The phone jack you use must be for an ANALOG phone line (the type found in most homes). Many office buildings have digital phone lines. Be sure you know which type of line you have.
Page 29: Installing The Modem Drivers
13. Plug the power cords, cables, and peripherals back into the computer and turn on the computer. Installing the Modem Drivers NOTE: If you wrote “950b” on page 2 of this User’s Guide, go to “Installing Modem Drivers with Windows 95 Version 950b” on page 29. Otherwise, follow these instructions.
Page 30 2. When you see this screen, insert the Connections CD into your CD-ROM drive and type D:\ to replace the A:\. (NOTE: If your CD-ROM drive has a different letter name, type that letter instead of D.) Click OK. Windows will load the modem’s drivers.
Page 31 ODEM NSTALLATION WITH INDOWS 4. Double-click the Modems icon (circled in 5. In the “Modems Properties” screen, you the screen image below). should see “Sportster 33600 Voice Internal PnP” listed.
Page 32 This means the installation was a success. Click OK. NOTE: If you do not see your modem listed in the preceding screen, the Plug and Play installation was unsuccessful. Please refer to “When Plug and Play Fails” on page 6. Next, click the Diagnostics tab at the top of the “Modems Properties”...
Page 33 Installing Modem Drivers with Windows 95 Version 950b 1. When Windows restarts, it should detect the modem (see following screen image). Insert the Connections CD and click Next. NOTE: If this screen does not appear, go to the section titled “When Plug and Play Fails”...
Page 34 3. Once Windows 95 has installed the modem’s drivers, you will see the following screen. This screen tells you which communications port your modem is installed to. (NOTE: Your screen may show a different COM port.) Make a note of the COM port setting. You will need this information later when you installing the software on the CD-ROM.
Page 35 ODEM NSTALLATION WITH INDOWS 5. Double-click the Modems icon (circled in 6. In the “Modems Properties” screen, you the screen image below). should see “Sportster 33600 Voice Internal PnP” listed.
Page 36 This means the installation was a success. Click OK. NOTE: If you do not see your modem listed in the preceding screen, the Plug and Play installation was unsuccessful. Please refer to “When Plug and Play Fails” on page 7. Next, click the Diagnostics tab at the top of the “Modems Properties”...
Page 37: Software Installation And Testing
OFTWARE Software Installation and Registration Using the Setup Wizard This section guides you through the U.S. Robotics Setup Wizard, the Connections CD-ROM interface, and the installation of ™ RapidComm Voice fax/data/voice software. It also shows you how to register and test your new Sportster modem.
Page 38 1. From the Windows 95 desktop, click the Start button and then click Run. 2. In the text box, type D:\setup.exe. (If your CD-ROM drive has a letter name other than D, type that letter in place of D.) OFTWARE NSTALLATION AND ESTING 3.
Page 39 5. This is the Setup Wizard’s “Welcome” screen. After reading the screen, click Next. 6. When you see the following screen, select your modem from the list and select the correct COM port setting in the Port box. Then click Next. OFTWARE NSTALLATION AND ESTING...
Page 40 7. When you see the next two screens, fill in the blank boxes with the appropriate information, using the TAB key to move between fields. Click Next on each screen when you have filled in all of the necessary information. OFTWARE NSTALLATION AND ESTING...
Page 41 OFTWARE NSTALLATION AND ESTING 10. The next screen introduces the U.S. Robotics Registration Wizard. After you read the screen, click Next. Read through each of the next two screens and verify or correct the information you typed earlier. Click Next on each screen to move on.
Page 42 11. When you see this screen, you are ready to register your new modem. Click By Modem. We recommend you choose the By Modem option because it’s a great way to verify that your Sportster modem is correctly installed. OFTWARE NSTALLATION AND ESTING 12.
Page 43 If you do not need to dial a prefix, simply click Dial. 13. You will see a screen indicating that the registration information has been sent (see circled text in the screen below). 14. The next screen indicates that the Setup Wizard is finished.
Page 44 At the end of the installation process, you will see the following screen. Click Yes. Windows 95 users: Windows will restart and the Connections CD will launch automatically upon restart. OFTWARE NSTALLATION AND ESTING Windows 3.x users: Windows will restart. When your desktop reappears, you will see a Connections icon (shown below) in the Connections program group.
Page 45 15. When the main Connections menu appears, click Business & Productivity on the menu on the left hand side of the screen (circled below). OFTWARE NSTALLATION AND ESTING 16. On the Business & Productivity menu is a RapidComm Voice button (circled in the following screen shot).
Page 46 17. The next screen contains another menu on the right hand side of the screen. Included on the menu is a Learn More & Get Software button (circled in the screen image below). Click this button. OFTWARE NSTALLATION AND ESTING 18.
Page 47 NOTE: If you are using Netscape Navigator to view your Connections CD- ROM, you may be asked to save the application’s installer to your computer when you click the Install button. Note the installer’s file name and its location on your computer. To run the installer or demo, find the file on your computer and double-click it.
Page 48 When you see this screen, click either If you click Yes, every document you print will be treated as a fax unless you change the printer selection in the program from which you are printing. If you click No, RapidComm Voice will not be selected as the default printer.
Page 49 24. Restart Windows by clicking the Windows Start button and pointing to Shut Down. Click Restart the Computer? on the “Shut Down Windows” screen. Then click Yes. 25. When your desktop appears, click Windows Start. Point to Programs. Then point to RapidComm Voice. OFTWARE NSTALLATION AND ESTING...
Page 50 27. When you see this screen, verify the information shown and then fill in the Data box (if you have a third phone number just for your modem) and the Local Area Code box. Then click Next. OFTWARE NSTALLATION AND ESTING 28.
Page 51 OFTWARE NSTALLATION AND ESTING 29. Select the correct modem in the text box 30. The next screen allows you to select single on the following screen. Then click Next. or multiple mailboxes for your personal voice mail system. Click Single or Multiple and then click Next.
Page 52: Sending Your First Fax
31. When you see this screen… If you want the RapidComm Voice program to launch at Windows startup, select the box to the left of Run RapidComm Voice at Windows startup. A check will appear in the box. Then click Finish. OFTWARE NSTALLATION AND ESTING...
Page 53 functions, such as sending documents to groups of numbers at assigned times and how to transfer data files. These more advanced functions are explained in the electronic RapidComm Voice manual on your Connections CD. This chapter will walk you through sending your first fax. 1.
Page 54 5. When you see the following screen, fill in the 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 a prefix (such as 9) to dial a number...
Page 55 OFTWARE NSTALLATION AND ESTING Congratulations —you are now ready to start using your Sportster modem! Go to the electronic RapidComm Voice manual on your Connections CD for more detailed instructions on sending faxes and other things you can do using your Sportster modem and RapidComm Voice software.
Page 56: Installing Other Fax/Data Software
NSTALLING Your modem was designed for and tested using a wide range of communications software packages. This section will guide you through some of the details you may need to know when installing communications software packages other than RapidComm Voice (included on the Connections CD-ROM).
Page 57: Robotics Modem Update Wizard
* Fee for upgrades is subject to change. NOTE: You can obtain this software from our BBS (847-982-5092) or from our World Wide Web page (www.3com.com) if you do not have a Connections CD-ROM. ODEM the Software Installation and Testing section of this manual before installing ™...
Page 58 2. Click the Windows Start menu and point to Programs. Point to U.S. Robotics Connections. Then click Connections. NOTE: Windows 3.x users launch the CD-ROM by clicking the Connections icon in the Connections program group. U.S. R OBOTICS ODEM PDATE 3.
Page 59 U.S. R OBOTICS ODEM PDATE IZARD 4. When the Customer Support menu appears, 5. Next, click Learn More & Get Software click Modem Update Wizard (circled in the (circled in the following screen shot). following screen shot).
Page 60 6. In the following screen, click Install (circled below). U.S. R OBOTICS ODEM PDATE 7. This launches the U.S. Robotics Modem Update Wizard Installer. The screen that follows is the welcome screen for the installer. After you read this screen, click Next. IZARD...
Page 61 8. The next screen indicates where the installer will store the files for the Update Wizard. If the indicated location is acceptable, click Next. Otherwise, click Browse to find an acceptable directory. U.S. R OBOTICS ODEM PDATE 9. You will see the following screen for a moment as the installer creates the Modem Update Wizard program group.
Page 62: Operation
Operation 1. Click the Windows Start button. Point to Programs. Then point to U.S. Robotics Modem Update Wizard. Finally, click Modem Update Wizard. 2. After you read the “Welcome” screen, click Next. U.S. R OBOTICS ODEM PDATE 3. This brings up the license agreement. After reading the license agreement, click Accept to continue.
Page 63 4. The software will now detect any modems installed on your system. When the detection phase finishes, you will see the following screen (the modems shown on your screen may differ). Click the modem you wish to upgrade and then click Next to continue. U.S.
Page 64 Click Other to learn more about how to purchase a U.S. Robotics x2 modem. Upgradable Modems If the modem IS software upgradable, you will see the following screen. Click Dial U.S. Robotics (which should be the default selection) in the pull-down menu. Click Upgrade to x2 Technology if you wish U.S.
Page 65 7. The following screen dials the U.S. Robotics Update Server. Click Tone or Pulse dialing as necessary. If you normally dial a prefix (such as 9) to dial out on your phone line, type that prefix before the 1 in the Prefix box. Then click Dial.
Page 66 8. Once connected, the server will compare available upgrades with the current code in your modem. If they differ, the server will automatically initiate the download procedure. NOTE: Users purchasing a 56K upgrade are asked if the charge is acceptable (see the following screen image).
Page 67 9. You will see this screen as the Wizard downloads the file for your modem. 10. When the download is complete, the modem disconnects from the server. The words “Downloading file…” change to “Upgrading …” or “Updating …”, depending on whether you are upgrading or updating your modem.
Page 68 12. You will see a “Congratulations!” screen. Click Details. U.S. R OBOTICS ODEM PDATE 13. Click OK once you verify that the process was a success. When you return to the “Congratulations!” screen, click Finished. Congratulations! Enjoy the benefits of your updated Sportster modem! IZARD...
Page 69: Using Modem Station
What Does Modem Station Modem Station provides a simple to use interface that makes communicating with your modem even easier. Modem Station allows you to point and click your way through configuration. Modem Station can automatically detect your modem and provide you with all the technical information you need, whenever you need it! Why Modem Station?
Page 70 6. You will be asked whether you wish to install Modem Station. Click Yes. 7. Wait a few moments for the Installation Wizard to load. 8. After reading the information on the “Welcome” screen, click Next. SING ODEM TATION 9. When you see this screen, click Next to accept the default directory or click Browse to change directories.
Page 71 10. Click Next on the following screen to accept the default program folder. You can place Modem Station in an existing folder by selecting one from the list. SING ODEM TATION 11. When you see the following screen, click Finish to complete the installation. If this is the first time you’ve installed Modem Station, you may be asked to restart your computer.
Page 72 Starting Modem Station 1. If you didn’t start Modem Station from the Setup program, please start it now. 2. Click Windows Start button and then point to Programs. Click U.S. Robotics Modem Station (or the folder you selected during installation). 3.
Page 73 The main menu gives you direct access to the following options: DETECT NEW MODEMS TERMINAL MODEM CONFIGURATOR ABOUT CONTACT/SUPPORT DETECT NEW MODEMS This option detects US Robotics modems installed on your system and shows what COM port they are using. Click this option if you are running Modem Station for the first time, if you are changing modems, or if you simply need to know what port your modem is...
Page 74 CONTACT/SUPPORT This option details how to get in touch with U.S. Robotics. TIP: For your convenience, we provide many on-line support avenues. For specific questions, our fax-on-demand service is a good place to start. You can download FAQs, software, and help files from our Web sites and BBS, or receive individualized support via support@usr.com.
Page 75 2. Click Scan to have Modem Station check for installed modems. This may take a few moments. 3. When the scan finishes, you will see the following display. Your display may differ depending on the type and number of modems installed. SING ODEM TATION...
Page 76 If you look at the information for the port your modem is using, you will see three buttons. These allow you to access Terminal and Modem Configurator without going back to the main menu. Extended Information provides detailed information about your modem, previous connections, firmware dates, etc.
Page 77 SING ODEM TATION NOTE: Modem Station’s Terminal window is provided primarily for troubleshooting convenience. If you frequently use BBSs, you will probably want to use a separate, full-featured Terminal program like the one provided in our RapidComm software. On the lower part of the Terminal screen, you will see the COM port your modem is currently using.
Page 78 modem. We will discuss port speed settings in detail later in this section. Terminal includes a basic auto dialer. To have Terminal dial a number for you, click Dial to bring up the “Dial” screen. You need to tell the Dialer a few things about your phone system, such as whether it uses tone or pulse dialing, what digit, if any, you need to dial to get an outside line, and whether...
Page 79 The Modem Configurator menu gives you access 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. SING ODEM TATION The “Data Control” screen allows you to assign the following basic communications settings: PORT SPEED...
Page 80 Once you have entered the Data Control settings, click Save to Modem. This stores the settings so that you do not have to re-enter them. This screen also displays the default DIP switch settings. TECHNICAL STUFF: switches are tiny switches that control a few basic functions on some external modems.
Page 81 Use the “Connections Control” screen to configure 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 Quick Reference” sections of this manual. TIP: On external modems, receiving a Data Terminal Ready signal causes the TR light to light up.
Page 82 If you look in the upper left hand corner of the display, you will see the commands currently in use. The “Modem to Computer” screen allows you to configure the following settings: LOCAL ECHO RESULT CODES RESULT CODE PREFERENCES SING ODEM TATION TIP:...
Page 83 CONNECTION RATES The “Connection Rates” screen allows you to configure modem speeds and protocols. WARNING! Use caution when changing connection settings. Improper settings may cause your modem to function incorrectly, disconnect, or fail to connect at all. SING ODEM TATION In the upper left hand corner of the screen you will see the current connection commands.
Page 84 DIALING/ANSWERING The next screen allows you to adjust how your modem initiates and receives calls. Using this screen, you can configure the following dial settings: WAIT FOR CARRIER AUTO-ANSWER # OF RINGS SPEAKER OPERATION DIALING METHOD SPEAKER VOLUME SING ODEM TATION TECHNICAL STUFF: “Negotiation”...
Page 85 To store a number in your modem’s memory, simply click in one of the entry boxes. Type in the phone number exactly as you would dial it. NOTE: Position Zero has a special feature. You can set your modem to automatically dial this number when your computer is turned on or when it is reset.
Page 86: Information Screens
available from many of the screens within Modem Station. When you click Restore Defaults, you will see a confirmation screen asking if you are sure you want to restore defaults. Click OK to proceed. TIP: Restore Defaults will set your modem back to factory specifications.
Page 87 CONFIGURATION PROFILE LINK DIAGNOSTICS VxD CONFIGURATION DIAL/SECURITY Winmodem users will have access to VxD information via these screens. Courier users will have access to Dial/Security information. Click ROM Checksum to bring up the following screen. SING ODEM TATION Technicians use the ROM Checksum to verify information stored in the modem’s Read Only Memory.
Page 88 The “Product” screen displays the make and model of your modem. It is the equivalent of the ATI3 command. Your modem is able to store two configurations or “profiles.” Only one can be active at any time. SING ODEM TATION To see information about the profile in use, click Active Profile to bring up the next screen.
Page 89 The two lines below the connection settings are the advanced commands currently in use. Below them is a display of the contents of the ‘S-Registers’ for your modem. These registers are special programmable areas of your modem’s memory. They are used to store commands that are too complex to be handled by the standard (or ‘AT’) commands.
Page 90 The “Configuration” screen displays the following information about your modem. Product Type displays the information relating to the make and model of your modem. Options displays the protocols available to your modem. Fax Options displays your fax compatibility. Clock Frequency displays the speed of the tiny “clock”...
Page 91 DAA Country displays the countries your modem is designed for. This is important because phone systems and telecommunications laws vary from country to country. Click Link Diagnostics to bring up the “Link Diagnostics” screen. SING ODEM TATION The “Link Diagnostics” screen displays statistics about your last connection.
Page 92 The rest of the screen contains information about CRC errors, Block Errors (Blers), resent data, and other data. This information is very important if you experience problems transmitting or receiving data or if you suspect problems with your phone service. Only our U.S.
Page 93: Troubleshooting And Online Help Resources
ROUBLESHOOTING AND PROBLEM DIAGNOSIS The computer or Your modem might not software will not be turned on. recognize the modem. You may not be entering modem commands in the proper manner while in terminal mode. You may have a COM port/IRQ conflict.
Page 94 Place the call again. Calls are routed differently each time. To verify a valid phone connection, enter RapidComm’s Terminal mode, type ATX3DT18479825092 (the 3Com BBS), and press ENTER. This string bypasses the dial tone, allowing a connection if the modem is functioning properly.
Page 95 To verify a valid phone connection, enter RapidComm’s Terminal mode and type ATX3DT18479825092 and press ENTER (the phone number is the 3Com BBS). This string bypasses the dial tone, allowing a connection if the modem is functioning properly.
Page 96 ROUBLESHOOTING AND PROBLEM DIAGNOSIS Your modem won’t connect The modem you’re trying at 2400 bps with a 2400 bps to connect with could be modem. an older model that doesn’t support error control. Your screen keeps You could have a conflict displaying random garbage with the remote modem’s characters.
Page 97 ROUBLESHOOTING AND PROBLEM DIAGNOSIS Your communications You may have a bad software is reporting many phone line. cyclic redundancy check Optimum flow control (CRC) errors and low settings may not be characters per second enabled on your modem. (CPS). The serial port rate in your communications software may be set too high for your modem’s...
Page 98 ROUBLESHOOTING AND PROBLEM DIAGNOSIS Your communications You may be trying to software is reporting many download a file to a cyclic redundancy check compressed area of your (CRC) errors and low hard disk. characters per second (CPS) Your modem initialization (cont.).
Page 99: When Plug And Play Fails
ROUBLESHOOTING AND When Plug and Play Fails If you have been directed to this section, your Plug and Play installation was not successful. Try the following possible solutions: 1. Click Windows 95 Start and click Shut Down. When asked if you wish to shut down your computer, click Yes.
Page 100: Online Help Resources
Online Help Resources Connecting to the 3Com BBS To connect to the 3Com Bulletin Board System, follow these steps: 1. Start the RapidComm Voice program. The software settings for the BBS are: ANSI terminal emulation...
Page 101 ROUBLESHOOTING AND The preceding screen shot is what the introduction screen of the 3Com BBS will look like. The BBS gives you access to customer and technical support documents and the BBS library which contains hundreds of helpful files and tips to help simplify using your modem.
Page 102 6. When the file transfer is complete, and you are ready to leave the BBS, type G (for Good-bye) from the main menu. 3Com offers a number of other online technical support options for our U.S. Robotics Sportster modems. Choose any...
Page 103 ROUBLESHOOTING AND Internet FTP Provides free library containing the same files as the BBS site. FTP to ftp.usr.com. Internet on Demand Provides automatic technical support through a library containing product information, quick reference cards, and installation help. To obtain an index of available documents, send a blank e-mail to support@usr.com.
Page 104: Are You Still Having Problems
NLINE ESOURCES (Hours: 8:00 am - 6:00 pm CST) Priority No-Hold Service 3Com also staffs its own 900 fee-based number for immediate assistance. These lines are staffed from 8 a.m. - 6 p.m. CST Monday through Friday. No-Hold line 900-555-USR1 There is a $1.50 per minute charge which will...
Page 105: If You Need To Return The Modem To Us
ATI7 screen available. If You Need to Return the Modem to Us Contact 3Com Customer Support. If the support representative determines that you need to return the modem, you will receive an SRO (Service Repair Order) number. You must have an SRO number before returning the modem to us.
Page 106: Rapidcomm Voice Troubleshooting Tips
ROUBLESHOOTING AND RapidComm Troubleshooting Tips PROBLEM: The lights in the RapidComm Voice software’s modem light monitor do not correspond to the actual lights on an external modem. DIAGNOSIS: Under certain circumstances, the modem light monitor does not correctly report the activity of the modem. We are aware of this problem and are working to rectify the situation in upcoming versions of the software.
Page 107: Glossary
Cross references are printed in boldface. Cross references with items in the Command Summary, found in the Technical Quick Reference (Section D), are printed in italics. analog loopback A modem self-test in which data from the keyboard or an internal test pattern is sent to the modem's transmitter, turned into analog form, looped back to the receiver, and converted back into digital form.
Page 108 auto answer Sets the modem to pick up the phone line when it detects a certain number of rings. See S-register S0 in the “Technical Quick Reference.” auto dial A process where your modem dials a call for you. The dialing process is initiated by sending an ATDT (dial tone) or ATDP (dial pulse) command followed by the telephone number.
Page 109 carrier The basic signal altered or modulated by the modem in order to carry information. character A representation, coded in binary digits , of a letter, number, or other symbol. characters per second (CPS) A data transfer rate generally estimated from the and the character length.
Page 110 data mode Mode used by a modem when sending and receiving data files. Data Communications (or Circuit-Terminating) Equipment, such as dial-up modems that establish and control the data link via the telephone network. default Any setting assumed, at startup or reset, by the computer's software and attached devices.
Page 111 Electronic Industries Association (EIA) Group which defines electronic standards in the U.S. error control Various techniques that check the reliability of (parity) or blocks of data. V.42 and MNP error-control protocols use error detection ( CRC) and retransmission of flawed frames (ARQ). facsimile A method for transmitting the image on a page from one point to another.
Page 112 Hertz, a frequency measurement unit used internationally to indicate cycles per second. ITU-T An international organization that defines standards for telegraphic and telephone equipment. For example, the Bell 212A standard for 1200-bps communication in North America is observed internationally as 2400-bps communication, most U.S.
Page 113 online fall back/fall forward A feature that allows high-speed, error-control modems to monitor line quality and fall back to the next lower speed in a defined range if line quality diminishes. As line conditions improve, the modems switch up to the next higher speed.
Page 114 Read Only Memory. Permanent memory, not user- programmable. serial transmission The consecutive flow of data in a single channel. Compare to parallel transmissions where data flows simultaneously in multiple channels. start/stop bits The signaling bits attached to a character before and after the character is transmitted during asynchronous transmission .
Page 115 V.22 bis An ITU-T standard for modem communications at 2400 bps. The standard includes an automatic link negotiation fallback to 1200 bps and compatibility with Bell 212A/V.22 modems. V.27 ter An ITU-T standard for facsimile operations that specifies modulation at 4800 bps, with fallback to 2400 bps. V.29 An ITU-T standard for facsimile operations that specifies modulation at 9600 bps, with fallback to 7200 bps.
Page 116 Xmodem The first of a family of error control software protocols used to transfer files between modems. These protocols are in the public domain and are available from many bulletin board services. XON/XOFF Standard ASCII control characters used to tell an intelligent device to stop/resume transmitting data.
Page 117: Technical Quick Reference
ECHNICAL UICK EFERENCE This section includes information about: AT Command Summary S-Registers...
Page 118: At Command Summary
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 since it is stored in the modem buffer.) If a command has numeric options and you don’t include a number, zero is assumed.
Page 119: Command Set
Command Set Use in conjunction with D, S, or & commands (or just AT) to display a basic command list; online help. Manual Answer: goes off hook in answer mode. Pressing any key aborts the operations. Re-executes the last issued command.
Page 120 Dials the phone number string stored in NVRAM at position n (n = 0 3). Phone numbers are stored with the &Zn=s command. Tone dial (Comma) Pause, See S8 definition; which it’s linked to. (Semicolon) Return to Command mode after dialing.
Page 121 Sets online local echo of transmitted data ON/OFF. Local echo ON. Modem sends a copy of data it sends to the remote system to your screen. Local echo OFF. Receiving system may send a remote echo of data it receives. Controls ON/OFF hook.
Page 122 Operates speaker. Speaker always OFF. Speaker ON until CONNECT. Speaker always ON. Speaker ON after dial, until CONNECT. Returns online. Returns online. Returns online and retrains. Sets pulse dial (for phone lines that don’t support touch-tone dialing). Displays/suppresses result codes. Displays result codes.
Page 123 ECHNICAL UICK EFERENCE Sets result code displayed. Default is X4. Xn Setting Result Codes 0/OK 1/CONNECT 2/RING 3/NO CARRIER 4/ERROR 5/CONNECT 1200 6/NO DIAL TONE 7/BUSY 8/NO ANSWER* 9/RESERVED 10/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...
Page 124 Xn (continued) Result Codes (cont.) Adaptive Dialing Wait for 2nd Dial Tone (W) Wait for Answer (@) Fast Dial *Requires @ in dial string; replaces NO CARRIER ECHNICAL UICK EFERENCE...
Page 125 Selects power-on/reset default configuration. Default is profile 0 setting in NVRAM Default is profile 1 setting in NVRAM Resets modem. Resets modem to NVRAM profile selected by Y command or dip 7. Resets modem to NVRAM profile 0 Resets modem to NVRAM profile 1 Resets modem to factory default profile...
Page 126 &A3 Protocol indicators added LAPM/MNP/NONE (error control) and V42bis/MNP5 (data compression) &Bn Manages modem’s serial port rate. &B0 Variable, follows connection rate &B1 Fixed serial port rate &B2 Fixed in ARQ mode, variable in non-ARQ mode &Cn Controls Carrier Detect (CD) signal.
Page 127 &Gn Sets Guard Tone. &G0 No guard tone, U.S. and Canada &G1 550 Hz guard tone, some European countries, requires B0 setting. &G2 1800 Hz guard tone, U.K., requires B0 setting. &Hn Sets Transmit Data (TD) flow control (see also &Rn). &H0 Flow control disabled &H1 Hardware flow control, Clear to Send...
Page 128 &K3 MNP5 compression disabled &Mn Sets Error Control (ARQ) for connections at 1200 bps and higher. &M0 Normal mode, error control disabled &M1 Reserved &M2 Reserved &M3 Reserved &M4 Normal/ARQ &M5 ARQ mode &Nn Sets connect speed. If connection cannot be established at this speed, the modem will hang up.
Page 129 &Pn Sets pulse (rotary) dial make/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) (see also &Hn). &R0 Reserved &R1 Modem ignores RTS &R2 Received Data to computer only on RTS &Sn Controls Data Set Ready...
Page 130 &T8 Analog Loopback with self-test and error detector &Un Sets floor connect speed when &Un is set greater than 0. &Nn is the ceiling connect 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...
Page 131 &Y3 Nondestructive, unexpedited &Zn=s Writes phone number string s to NVRAM at position n (n = 0 3). &Zn=L Writes last executed dial string to NVRAM at position n (n = 0 3). &Zn? Displays the phone number stored at position n (n = 0 &ZL? Displays the last executed dial string.
Page 132: S Registers
S Registers To change a setting, use the ATSr=n command, where r is the register and n is a decimal value from 0 255 (unless otherwise indicated). Register Default Function Sets the number of rings on which to answer in Auto Answer Mode. When set to 0, Auto Answer is disabled.
Page 133 Register Default Function 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. Sets the number of seconds the modem waits for a carrier. May be set for much longer duration if, for example, the modem is originating an international connection.
Page 134 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.
Page 135 Register Default Function S13 (cont.) The 1.5K-byte non-ARQ buffer allows data transfer with without using flow control. The 128-byte option lets remote users with slower modems keep data you’re sending from scrolling off their screens. When remote users send your computer an XOFF (Ctrl-S) and you stop transmitting, the data in transit from your modem’s buffer doesn’t exceed the size of their screen.
Page 136 Register Default Function S15 (cont.) To disable V.42 detect phase, select the total of the values for bits 3 and 7. Bit-mapped register setup. To set the register, see instructions for S13. Test timer for &T loopback testing. Sets the time in seconds of testing before the modem automatically times out and terminates the test.
Page 137 Register Default Function Stores the ASCII decimal code for the XON character. Stores the ASCII decimal code for the XOFF character. Sets the duration, in hundredths of a second, that DTR must be dropped so that the modem doesn’t interpret a random glitch as a DTR loss. (Most users will want to use the default;...
Page 138 Register Default Function S27 (cont.) Eliminates the V.32 answer tones for a faster connection. Default item, all times are in tenths of seconds. Disables all connections except V.32 at 9600 bps. Sets the duration, in tenths of a second, of the V.21 answer mode fallback timer. Reserved Reserved Bit-mapped register setup.
Page 139 Register Default Function S32 (cont.) Bit-mapped register setup. To set the register, see the instructions for S13. Bit-mapped register setup. To set registers, see instructions for S13. ECHNICAL UICK EFERENCE Value Result Reserved. Disable V.34 modulation. Disable V.34+ modulation. 32-128 Reserved. Value Result Disable 2400 symbol rate.
Page 140 Register Default Function S34 (cont.) Bit-mapped register setup. To set registers, see instructions for S13. ECHNICAL UICK EFERENCE Value Result Disable 32S-2D trellis encoding. Disable 64S-4D trellis encoding. Disable non-linear coding. Disable TX level deviation. Disable Pre-emphasis. Disable Pre-coding. Value Result Limit back channel rate.
Page 141 Register Default Function 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 a remote modem to acknowledge receipt of all transmitted data before it is disconnected.
Page 142: Regulatory Information
EGULATORY Manufacturer’s Declaration of Conformity 3Com 7770 North Frontage Road Skokie, Illinois 60077-2690 U.S.A. declares that the product U.S. Robotics Sportster Voice 33600 Internal Faxmodem conforms to the FCC’s specifications: Part 15, Class B: Operation is subject to the following two...
Page 143: Caution To The User
This equipment uses the following USOC jacks: RJ-11C. This equipment may not be used on coin service provided by the telephone company. Connection to party lines is subject to state tariffs. An FCC compliant telephone cord and modular plug are provided with this equipment, which is designed to connect to the telephone network or premises wiring using a Part 68 compliant compatible jack.
Page 144: Connecting To The Telephone Company
Connecting to the Telephone Company It is not necessary to notify the telephone company before installing the modem. However, the telephone company may request the telephone number(s) to which the Sportster modem is connected and the declaration of conformity to FCC Parts 15 and Part 68 on the first page of this section.
Page 145: Radio And Television Interference
your modem. If you’re using a different communications software program, refer to its manual. Radio and Television Interference This equipment generates and uses radio frequency energy and if not installed and used properly, in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception.
Page 146: For Canadian Modem Users
3Com could void the user’s authority to operate the equipment. For Canadian Modem Users NOTICE: The Industry Canada (IC) label identifies certified equipment.
Page 147 equipment to jacks except in precise situations that are spelled out in tariffing arrangements with those companies. Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Page 148 Keating Technologies 25 Royal Crest Court, Suite 200 Markham, ONT L3R 9X4 «AVIS : L'étiquette d'Industrie Canada identifie le matériel homologué. Cette étiquette certifie que le matériel est conforme aux normes de protection, d'exploitation et de sécurité des réseaux de télécommunications, comme le prescrivent les documents concernant les exigences techniques relatives au matériel terminal.
Page 149: Limited Warranty
25 Royal Crest Court, Suite 200 Markham, ONT L3R 9X4 Limited Warranty U.S. Robotics Access Corp., a subsidiary of 3Com Corporation, warrants to the original end-user purchaser that this product will be free from defects in materials and workmanship for a period of five years from the date of purchase.
Page 150 tampered with, misused, or subjected to abnormal working conditions (including, but not limited to, lightning and water damage). THIS LIMITED WARRANTY DOES NOT GUARANTEE YOU UNINTERRUPTED SERVICE. REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS LIMITED WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER.
Page 151 3Com, 7770 N. Frontage Road, Attn.: Technical Support Dept., Skokie, Illinois 60077-2690. You will be given a Service Repair Order (“SRO”) number to help 3Com keep track of your limited warranty request. Once you have received your SRO number, take or send the product, postage prepaid and insured, to 3Com, Attn: RMA, [your SRO#], 6201 W.
Page 152: Index
America Online, U.S. Robotics online support and, analog phone lines, vs. digital, 15, 24 AOL. See America Online, U.S. Robotics online support and BBS, 3Com, 96-98 characters per second (cps) low, errors and, 93-94 COM ports conflicts, 89-90 and Plug and Play installations, 19-20 CompuServe, U.S.
Page 153 IRQs, 1, 3-12, 20 conflicts, 89-90 ISA expansion slots, 14, 22 jumper pins, 10-12, 20 jumper shunts, 10-12, 20 microphone installation, 16, 24 modem installation Plug and Play, 19-32 With Windows 3.x, 3-18 Modem Update Wizard, 53-64 installing, 53-57 using, 58-64 Index online help resources, 96-100 parity, 92...
Page 154 RapidComm Voice software, 101-102 TSR. See Terminate and Stay Resident programs upgrading/updating modems, 53-64 V.17 fax transmissions, errors and, 94 Windows 95 Index determining your version, 2 World Wide Web (WWW), 3Com online support and, 96-100 x2 technology, 2, 53-64...

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