Page 1 Sportster 56 kbps internal and external modems U.S. Robotics, the USRobotics logo, and Sportster are registered trademarks and Connections, Total Control, Courier, RapidComm, x2, and the x2 logo are trademarks of 3Com Corporation and its subsidiaries. Windows and Internet Explorer are registered trademarks of Microsoft Corp.
Page 2: Table Of Contents
Welcome to x2 Information Access Product Features Before You Begin (Windows 95 Users) Internal 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 How to Insert the Modem into the Computer Internal Modem Installation with Windows 95...
Page 3 Installing Other Fax/Data Software Type of Modem Initialization String Flow Control UART (External Modems Only) Using Modem Station Why Modem Station? What Does Modem Station Do? Installing Modem Station Starting Modem Station Using Detect New Modems Using Terminal Using Modem Configurator Using Modem to Computer Using the Extended Information Screens U.S.
Page 4 Glossary Technical Quick Reference Front Panel Lights (External Modems) Command Summary DIP Switches (Modems with DIP Switches Only) S-Registers The Serial Interface Regulatory Information Manufacturer’s Declaration of Conformity 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...
Page 5: Welcome To X2 Information Access
An integrated end-to-end solution from the leader U.S. Robotics is well positioned to bring you x2 technology. Our Sportster world's number one seller, and our Total Control and Courier favored by many Internet service providers.
Page 6 Taking advantage of the modern telephone network x2 technology takes advantage of the typical network configuration found when an analog subscriber connects to a digitally connected server. Because it requires no analog-to-digital conversions in the downstream path (which can cause line noise), x2 can use nearly all of the available 64K network bandwidth.
Page 7 Your new x2 modem provides many advanced features. Here are just a few: Modulation Schemes x2 technology ITU-T V.34+ ITU-T V.34 ITU-T V.32bis ITU-T V.32 ITU-T V.22bis ITU-T V.22 ITU-T V.23 Bell 212A ITU-T V.21 Bell 103 Error Control and Data Compression Schemes ITU-T V.42...
Page 8: Before You Begin (Windows 95 Users)
EFORE Your Sportster 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 9: Internal Modem Installation With Windows 3
NTERNAL You’ll need these items from your Sportster modem box: modem Connections CD Plus: a screwdriver (not included) ODEM NSTALLATION WITH INDOWS A Word about COM Ports and IRQs Most computer accessories — a mouse, sound card, enhanced graphics card, scanner, etc.
Page 10 This section of the manual will help you understand the COM/IRQ settings on your new Sportster modem. ODEM NSTALLATION WITH INDOWS U.S. Robotics has set your modem to a default Plug and Play setting geared towards Windows 95 users.
Page 11: How To Use Comtest To Determine Your Modem's Settings
3. The screen in the next column appears when ComTest starts. If there is a modem in your computer which you are replacing with your new Sportster modem, go to “Testing an Installed Modem” on page 9 to determine which...
Page 12 NTERNAL 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 in the spaces provided on the first page of this manual.
Page 13: Testing An Installed Modem
“Testing is complete.” This screen will also tell you which COM and IRQ settings your present modem is using. These are the settings you want to use for your new Sportster modem. Write the settings down in the spaces provided on the first page of this manual.
Page 14: What To Do With Comtest's Recommendation
NTERNAL 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 15 NTERNAL If you do not have a sound card, use COM3/IRQ5. Write “COM3” and “IRQ5” in the spaces provided on the first page of this manual. You will have to change the settings on your modem. Go to “How to Change the Modem’s Settings”...
Page 16: How To Change The Modem's Settings
NTERNAL Find out which socket is COM1 and which is COM2. If nothing is plugged into either port, you can 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 17 NTERNAL The jumper shunts will be hanging from single jumper pins as shown in the following illustration. ODEM NSTALLATION WITH INDOWS 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.
Page 18: How To Insert The Modem Into The Computer
NTERNAL 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 19 NTERNAL 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.
Page 20 NTERNAL 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 21 NTERNAL 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 into place using the screw that you removed in step 4.
Page 22 NTERNAL 10. If you wish to use a phone through the same phone wall jack as the modem when the modem is not in use, plug your phone’s cord into the modem’s PHONE jack. NOTE: You cannot use the modem and a phone at the same time if they share the same telephone line.
Page 23 NTERNAL ODEM NSTALLATION WITH INDOWS 15. Double-click the Ports icon. 16. If it’s not already selected, click the COM port for your modem. Then click Settings.
Page 24 Click Close to exit Program Manager. You are now ready to install the software on the Connections CD-ROM (included with your Sportster modem). Turn to “Software Installation and Testing” (page 43) for detailed information about installing the software, registering the modem, and trying out your...
Page 25: Internal Modem Installation With Windows 95
NTERNAL You’ll need these items from your Sportster modem box: modem Connections CD Plus: a screwdriver (not included) ODEM NSTALLATION WITH INDOWS Plug and Play Installation With Windows 95, you may be able to simply plug your new modem into your computer, power up, and be ready to work.
Page 26 NTERNAL 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 27: How To Insert The Modem Into The Computer
If you ever need to call our customer support department, a customer support representative will ask you for the serial number. This will help him or her identify your Sportster modem. ODEM NSTALLATION WITH INDOWS 1. Turn off your computer and unplug it from the electrical outlet.
Page 28 NTERNAL 3. Remove the screws from your computer’s cover and then remove the cover, as shown 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. Contact your computer manufacturer or review their manual if you need further instructions.
Page 29 NTERNAL 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 30 NTERNAL this jack, disconnect the phone’s 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 31: How To Move Through The "New Hardware Found" Screens
NTERNAL How to Move Through the “New Hardware Found ” Screens 1. When Windows 95 restarts, the following screen appears automatically after a few seconds. Click Driver from disk provided by hardware manufacturer. Then click OK. ODEM NSTALLATION WITH INDOWS 2.
Page 32 NTERNAL 3. Once Windows 95 finishes loading the information from the CD-ROM, you should verify that the modem installation was a success. When your desktop returns, click the Windows’ Start button and then point to Settings. Then click Control Panel. ODEM NSTALLATION WITH INDOWS...
Page 33 NTERNAL 5. In the “Modems Properties” screen, you should see “Sportster 56000 Fax Internal PnP” listed. This means the installation was a success. Click OK. ODEM NSTALLATION WITH INDOWS NOTE: modem listed in the preceding screen, the installation was unsuccessful. Please refer to the “Troubleshooting and Online Help...
Page 34 NTERNAL ODEM NSTALLATION WITH INDOWS Turn to “Software Installation and Testing” (page 43) for detailed information about installing RapidComm, registering the modem, and trying out your modem by faxing U.S. Robotics.
Page 35 XTERNAL ODEM You’ll need these items from your Sportster modem box: modem Connections CD power adapter Plus: Serial modem cable. (Not included. See next column.) NSTALLATION WITH How to Determine Which Serial Cable to Buy Before you can begin installation, you need to purchase an RS-232 serial modem cable.
Page 36: External Modem Installation With Windows 3
XTERNAL If your PC's serial connector looks like this… you need a shielded serial modem cable with a 25-pin female to 25-pin male connector. If your PC's serial connector looks like this… you need a shielded serial modem cable with a 9-pin female to 25-pin male connector.
Page 37 XTERNAL on the bottom of the case) and the other end into a phone wall 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.
Page 38 XTERNAL You are now ready to install the software on the Connections CD-ROM (included with your Sportster modem). Turn to “Software Installation and Testing” (page 43) for detailed information about installing ODEM NSTALLATION WITH INDOWS the software, registering the modem, and trying out your modem by faxing U.S.
Page 39: External Modem Installation With Windows 95
XTERNAL ODEM You’ll need these items from your Sportster modem box: modem Connections CD power adapter Plus: Serial modem cable. (Not included. See next column.) NSTALLATION WITH How to Determine Which Serial Cable to Buy Before you can begin installation, you need to purchase an RS-232 serial modem cable.
Page 40: How To Connect The Modem To The Computer
XTERNAL If your PC's serial connector looks like this… you need a shielded serial modem cable with a 25-pin female to 25-pin male connector. If your PC's serial connector looks like this… you need a shielded serial modem cable with a 9-pin female to 25-pin male connector.
Page 41 XTERNAL 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. The modem will be damaged if you use a digital phone line.
Page 42 XTERNAL 1. When Windows restarts, the following screen appears automatically after a few seconds. Click Driver from disk provided by hardware manufacturer. Then click OK. 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 ODEM NSTALLATION WITH...
Page 43 XTERNAL ODEM NSTALLATION WITH INDOWS 3. Once Windows finishes loading the 4. Double-click the Modems icon (circled in information from the CD-ROM, you should the screen image below). verify that the modem installation was a success. When your desktop returns, click the Windows Start button and point to Settings.
Page 44 XTERNAL 5. In the “Modems Properties” screen, you should see “Sportster 56000 Fax External PnP” listed. This means the installation was a success. Click OK. ODEM NSTALLATION WITH INDOWS NOTE: modem listed in the preceding screen, the installation was unsuccessful. Please refer to the “Troubleshooting and Online Help...
Page 45 XTERNAL ODEM NSTALLATION WITH INDOWS Turn to “Software Installation and Testing” (page 43) for detailed information about installing the software, registering the modem, and trying out your modem by faxing U.S. Robotics.
Page 46 ™ RapidComm (fax/data software). It also shows you how to register and test your new Sportster modem. RapidComm fax/data software simplifies sending and receiving faxes directly from your computer desktop. You can build your own fax directory, send faxes to specified groups of...
Page 47: Software Installation And Testing
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 48 5. This is the Setup Wizard’s “Welcome” screen. After reading the screen, click Next. OFTWARE NSTALLATION AND ESTING 6. When you see the following screen, select your modem from the list, verify that the COM port setting is correct, and then click Next.
Page 49 OFTWARE NSTALLATION AND ESTING 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.
Page 50 8. You will see the following screen as the Setup Wizard creates a U.S. Robotics Connections program group. 9. Next, the Setup Wizard looks for Netscape Navigator on your system. If the Setup Wizard does not find Netscape Navigator, it searches for Microsoft’s Internet Explorer.
Page 51 ESTING 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.
Page 52 12. When you see this screen… If you need to dial a prefix (such as 9) to make a call outside your building, type the prefix before the 1 in the Prefix box and then click Dial. If the modem still does not dial the number properly, you may need to insert a comma between the prefix and the 1 to force the modem to...
Page 53 OFTWARE NOTE: If the Setup Wizard detected Internet Explorer on your system during the setup process, your computer will launch the Connections CD-ROM when you click OK. Continue at step 15. If the Setup Wizard DID NOT detect Internet Explorer on your system earlier in the setup process, it will launch the Internet Explorer installation utility after you click OK.
Page 54 Windows 3.x users: Windows will restart. When your desktop reappears, you will see a Connections icon (shown below) in the Connections program group. Double-click the icon to launch the CD. OFTWARE NSTALLATION AND ESTING 15. When the main Connections menu appears, click Business &...
Page 55 16. On the Business & Productivity menu is a RapidComm button (circled in the following screen shot). RapidComm is the fax/data software you can use to send faxes directly from your desktop, transfer files electronically, or dial into a BBS. Click RapidComm.
Page 56 18. The next screen displays information about RapidComm. When you are ready to install RapidComm, click Install (circled in the lower left hand corner of the following screen image). OFTWARE NSTALLATION AND ESTING NOTE: 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.
Page 57 type that location in the text box before clicking Install. 20. You will see this screen as files are copied. OFTWARE NSTALLATION AND ESTING 21. When you see this screen, click either Yes or No. 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.
Page 58 RapidComm as the printer in the program from which you are printing. 22. This screen marks the end of the RapidComm installation. Click OK. 23. Click OK to return to Connections. Click Exit (circled in the following screen image). OFTWARE NSTALLATION AND ESTING...
Page 59 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 click RapidComm. OFTWARE NSTALLATION AND ESTING...
Page 60 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 61 OFTWARE NSTALLATION AND ESTING 29. Select the correct modem in the text box 30. When you see this screen… on the following screen. Then click Next. If you want RapidComm to launch with every Windows startup, select the Run RapidComm at Windows startup check box.
Page 62: Sending Your First Fax
31. You will see this screen. This is the main RapidComm screen. To send your first fax, keep this screen open. (After this initial run, RapidComm will not need to be running in order to send a fax.) OFTWARE NSTALLATION AND ESTING Sending Your First Fax Using RapidComm, you can send and receive...
Page 63 sentence or two. Name the document tester. Keep the document open. 2. From the File menu, click Print. 3. Select RapidComm as the printer. This can be changed in most Windows applications in the Print dialog box. 4. Click OK or Print (whichever button you click in your application to indicate that you are ready to print) in the Print dialog box.
Page 64 Congratulations —you are now ready to start using your Sportster modem! Go to the electronic RapidComm manual on your Connections CD for more detailed instructions on sending faxes and other things you can do using your Sportster modem and RapidComm.
Page 65: Installing Other Fax/Data Software
Type of Modem Most communications software programs will ask you to select the type of modem you are using. Select a U.S. Robotics Sportster high speed modem. If that selection is not listed, pick Courier Dual Standard, V.32bis, or V.
Page 66: Uart (External Modems Only)
If this is your UART... 16550* 16450 8250 *All Sportster internal modems have a 16550 UART. NOTE: DO NOT select a 28,800, 14,400, or 12,000 bps serial port rate, if offered. Your modem will NOT work correctly with any of these settings. Fix or lock the serial port (baud) rate (if it’s...
Page 67: Using Modem Station
SING What Does Modem Station Modem Station provides a simple to use interface that takes the pain out of communicating with your modem. 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!
Page 68 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 69 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 70: Starting Modem Station
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 71 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 using.
Page 72 SING ODEM TATION 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 73: Using Detect New Modems
Using Detect New Modems 1. Click Detect New Modems to bring up the following screen. The screen consists of four columns, one for each possible COM port on a PC. You can scan a specific port(s) by selecting the checkbox for that port. SING ODEM TATION...
Page 74: Using Terminal
If your modem is installed and configured correctly, Modem Station will find the modem and display make and model information under the assigned port. All currently active ports should display “Port OK” under the heading. If a port displays a “Port Error”, it usually means that the port is disabled in system setup.
Page 75 SING ODEM TATION In addition to allowing direct entry of modem commands, the Terminal window also allows you to dial into Bulletin Boards, listing services, and other online services.
Page 76 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 such as that 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 77: Using Modem Configurator
When you are finished using Terminal, click Exit to return to the screen you accessed it from. Using Modem Configurator You can access Modem Configurator from either the Main menu or the Detect New Modems screen. Click Modem Configurator to bring up this menu.
Page 78 The “Data Control” screen allows you to assign the following basic communications settings: PORT SPEED PARITY STOP BITS WORD FLOW CONTROL SERIAL PORT RATE For information on using these settings, please refer to the “Glossary” at the back of this manual.
Page 79 CONNECTION CONTROL This is where you adjust your modem’s connection and transmission settings. Click Connection Control to bring up this screen. In the upper left hand corner of this screen, you will find the current Connection Control settings. SING ODEM TATION Use the “Connections Control”...
Page 80: Using Modem To Computer
Once you have configured your Connection Control settings, click Save to Modem to save your settings Using Modem to Computer These settings control how your modem and computer communicate with each other. They control what you see on your terminal screen and how results are displayed.
Page 81 TIP: If you type ATDT and see ‘AATTDDTT’ on your screen, it is possible that both your software and modem have Local Echo set to ‘ON’. Turn Local Echo ‘OFF’ on EITHER the modem or the software to solve this problem.
Page 82 In the upper left hand corner of the screen you will see the current connection commands. This screen allows you to configure the following 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 to the Modem Configurator menu.
Page 83 TECHNICAL STUFF: “Negotiation” is the noise we hear when two modems connect. The modems exchange information about their respective protocols and configurations. Once they agree on the fastest protocol they can both handle, transmission begins. STORED NUMBERS The “Stored Numbers” screen displays the phone numbers currently stored in your modem’s memory.
Page 84: Using The Extended Information Screens
You can change stored numbers by highlighting them and then typing the new numbers in their place. Once you store your numbers, you can dial them by entering this command from Terminal Mode: ATDS0, ATDS1, ATDS2, etc. Your U.S. Robotics modem comes with one phone number already stored in Position 0.
Page 85 We devote a separate section to the Extended Information screens so that we can explain what you’ll see (and why it is important to you) as fully as possible. There are a series of commands used to obtain detailed information from U.S. Robotics modems.
Page 86 Technicians use the ROM Checksum to verify information stored in the modem’s Read Only Memory. You can check the ROM Checksum from any Terminal program by typing ATI1 and pressing ENTER. For information about the specific modem you are using, click Product to bring up the next screen.
Page 87 To see information about the profile in use, click Active Profile to bring up the next screen. This screen contains information about your modem’s current configuration. Starting from the top, you will see the make and model of your modem. Directly below that you will see basic commands currently in use.
Page 88 same format as the “Active Profile” screen with the addition of stored phone numbers. The next two screens contain information that our technical support representatives may need if you request support. Click Configuration to bring up the first of these screens. SING ODEM TATION...
Page 89 stored in the Supervisor chip. (The Supervisor chip contains the special software used to control your modem’s functions.) If a support representative asks you for your Supervisor or EPROM date, look here. DSP Date is the date of the ‘firmware’ that controls the DSP in your modem.
Page 90 The “Link Diagnostics” screen displays statistics about your last connection. This screen is most often used as an aid in diagnosing connection failures, but it also can provide information about connection speeds and phone line conditions. Modulation displays the speed and type of connection.
Page 91 You may need this information to configure your communications software. We hope that you enjoy exploring the world of information and entertainment your new Sportster modem will open up for you and that Modem Station will make using and...
Page 92 configuring your new modem as simple as possible. Remember: If you have any questions or problems, feel free to visit one of our many online forums. SING ODEM TATION For answers to specific questions, be sure to visit our World Wide Web support site at www.usr.com/home/online/main.htm, or try our BBS (847-982-5092).
Page 93: Robotics Modem Update Wizard
U.S. R OBOTICS Your Connections CD-ROM includes the U.S. Robotics Modem Update Wizard. This software is designed to quickly update your modem, whether to a newer version of its current code or to U.S. Robotics’ revolutionary new x2 technology. You can update your modem in any of the following 3 ways: 33.6 K to 33.6 K (update)
Page 94 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 IZARD 3.
Page 95 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 96 6. In the following screen, click Install (circled below). U.S. R OBOTICS ODEM PDATE IZARD 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.
Page 97 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 IZARD 9. You will see the following screen for a moment as the installer creates the Modem Update Wizard program group.
Page 98: Operation
Operation 1. Click the Windows Start button. Point to Programs. Then point to U.S. Robotics Modem Update Wizard. Finally, point to the Modem Update Wizard selection. 2. After you read the “Welcome” screen, click Next. U.S. R OBOTICS ODEM PDATE IZARD 3.
Page 99 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 100 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 101 Users Purchasing 56K Upgrades Users Updating Their Modem’s Code U.S. R OBOTICS ODEM PDATE IZARD 7. This 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.
Page 102 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. Click Yes to continue. The price of the upgrade is subject to change and includes applicable taxes.
Page 103 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 104 12. You will see a “Congratulations!” screen. Click Details. U.S. R OBOTICS ODEM PDATE IZARD 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!
Page 105: 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. If you are using an external modem, the COM port may not be enabled.
Page 106 The phone cord should be no longer than 12 feet in length. Use the phone cord included in your Sportster box if possible. There should be no line splitters, fax machines, or other devices between the modem and the wall jack.
Page 107 ROUBLESHOOTING AND PROBLEM DIAGNOSIS The modem won’t If you have voice go off hook to dial mail, your dial tone or doesn’t answer may be altered when the phone (cont.) messages are waiting. Your software may not have auto answer enabled.
Page 108 ROUBLESHOOTING AND PROBLEM DIAGNOSIS Your modem The modem you’re trying to won’t connect with could be an connect at older model that doesn’t 2400 bps with support error control. a 2400 bps modem. You could have a conflict with the remote modem’s settings for word length, parity, and stop bits.
Page 109 ROUBLESHOOTING AND PROBLEM DIAGNOSIS Your You may have a bad phone communicatio line. ns software is Optimum flow control reporting settings may not be enabled many cyclic on your modem. redundancy check (CRC) The serial port rate in your errors and communications software may be set too high for your characters per...
Page 110 PROBLEM DIAGNOSIS Your You may be trying to download a file to a communications compressed area of your hard disk. software is reporting many cyclic Your modem initialization string could be redundancy insufficient for fax transmissions. check (CRC) errors and low There may be a Terminate and Stay characters per Resident (TSR) program (such as a screen...
Page 111: Online Help Resources
ROUBLESHOOTING AND Online Help Resources Connecting to the U.S. Robotics BBS To connect to the U.S. Robotics Bulletin Board System, follow these steps: 1. Start RapidComm. The software settings for the BBS are: ANSI terminal emulation Data Bits: 8 Parity: None Stop Bits: 1 2.
Page 112 ROUBLESHOOTING AND create a password of your choice, and to fill out a questionnaire. The preceding screen shot is what the introduction screen of the U.S. Robotics BBS will look like. The BBS gives you access to customer and technical support documents and the BBS library.
Page 113 ROUBLESHOOTING AND 2. A Filename to Download: text box appears on the screen. 3. Type the name of the file you wish to receive. You have three manual formats from which to choose: x2_WORD.ZIP—The Guide in a zipped Word for Windows v6.0 format.
Page 114 Log on to: www.usr.com/home/online/main.htm CompuServe Access the same information as the Internet FTP site. Connect through the US Robotics Forum or e-mail us through CompuServe Mail for a response within 24 hours. The U.S. Robotics forum address is GO USROBOTICS.
Page 115: Are You Still Having Problems
ROUBLESHOOTING AND message boards, online customer support, and product announcements. Technical Support Hotline Technical questions about U.S. Robotics modems can also be answered by technical support representatives. Hotline (847) 982-5151 (Hours: 8:00 am - 6:00 pm CST) Priority No-Hold Service U.
Page 116: Rapidcomm Troubleshooting Tips
ROUBLESHOOTING AND before returning the 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 the original box. Send ONLY the modem (NOT the power supply, manuals, CD- ROM, etc.).
Page 117: A Note To Users With Older Versions Of Rapidcomm On Their Systems
ROUBLESHOOTING AND NLINE ESOURCES PROBLEM: RapidComm does not work properly at 115.2 kbps. DIAGNOSIS: The presence of disk compression software on your system hampers RapidComm’s ability to work properly at 115.2 kbps. Removal of the disk compression software from your system will allow RapidComm to operate at 115.2 kbps.
Page 118: 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 119: Asynchronous Transmission
asynchronous transmission Data transmission in which the length of time between transmitted characters may vary. Because characters may not be transmitted at set intervals, start/stop bits are used to mark the beginning and end of each character. auto answer Sets the modem to pick up the phone line when it detects a certain number of rings.
Page 120 rates, commonly 2400, 4800, 9600, 14,400, 28,800 and higher. bits per second (bps) The bits (binary digits) per second rate. Thousands of bits per second are expressed as kilobits per second (kbps). buffer A temporary memory area used as storage during input and output operations.
Page 121 The longer the table, the more efficient throughput gained. 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.
Page 122 default Any setting assumed, at startup or reset, by the computer's software and attached devices. The computer or software will use these settings until changed by the user or other software. detect phase In the ITU-T V.42 error-control protocol, the first stage in establishing if both modems attempting to connect have V.42 capability.
Page 123 Electronic Industries Association (EIA) Group which defines electronic standards in the U.S. error control Various techniques that check the reliability of characters (parity) or blocks of data. V.42 and MNP error-control protocols use error detection (CRC) and retransmission of flawed frames (ARQ).
Page 124 half duplex Signals can flow in both directions, but only one way at a time. In microcomputer communications, may refer to activation of the online local echo, which causes the modem to send a copy of the transmitted data to the screen of the sending computer.
Page 125 (NVRAM) User-programmable random access memory whose data is retained when power is turned LOSSARY off. On the Sportster modem, it includes four stored phone numbers and the modem settings. off/on hook Modem operations that are the equivalent of manually lifting a phone receiver (taking it off- hook) and replacing it (going on-hook).
Page 126 parity A simple error-detection method that checks the validity of a transmitted character. Character checking has been surpassed by more reliable and efficient forms of error checking, including V.42 and MNP 2-4 protocols. Either the same type of parity must be used by two communicating computers, or both may omit parity.
Page 127 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 128 V.17 fax An ITU-T standard for making facsimile connections at 14,400 bps, ,12,000 bps, 9,600 bps, 7,200 bps. V.21 An ITU-T standard for modems operating in asynchronous mode at speeds up to 300 bps, full-duplex, on public switched telephone networks. V.22 An ITU-T standard for modem communications at 1200 bps, compatible with...
Page 129 V.32 bis An ITU-T standard that extends the V.32 connection range: 4800, 7200, 9600, 12,000, and 14,400 bps. V.32 bis modems fall back to the next lower speed when line quality is impaired, fall back further as necessary, and also fall forward (switch back up) when line conditions improve (see online fall back/fall forward).
Page 130 XON/XOFF Standard ASCII control characters used to tell an intelligent device to stop/resume transmitting data. Ymodem An error-checking protocol that can send several files of data at a time in 1024-byte (1K) blocks. This protocol can use either checksums or CRC for error checking. LOSSARY Ymodem G Similar to Ymodem, except it includes no error...
Page 131: Technical Quick Reference
ECHNICAL UICK EFERENCE This section includes information about: Front Panel Lights Command Summary DIP Switches S-Registers The Serial Interface (cable information)
Page 132: Front Panel Lights (External Modems)
Front Panel Lights (External Modems) Symbol Meaning AA ... Auto Answer...Answer mode: ON when register S0 is set to 1 or higher (Auto CD... Carrier Detect ...ON if modem receives a valid data signal (carrier) from a remote RD... Received Data...Flashes when modem sends result codes or passes received data SD ...
Page 133: Command Summary
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 134 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 135 ECHNICAL 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. “ Dials the letters that follow (in an alphabetical phone number). (Exclamation point) Flashes the switch hook.
Page 136 remote system to your screen. Local echo OFF. Receiving system may send a remote echo of data it receives. Controls ON/OFF hook. Hangs up (goes on hook). Goes off hook. Displays the following information. Four-digit product code Results of ROM checksum ECHNICAL UICK...
Page 137 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. Quiet mode; no result codes.
Page 138 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 139 Xn (continued) Result Codes (cont.) 155/CONNECT 33600 180/CONNECT 33333 184/CONNECT 37333 188/CONNECT 41333 192/CONNECT 42666 196/CONNECT 44000 200/CONNECT 45333 204/CONNECT 46666 208/CONNECT 48000 212/CONNECT 49333 216/CONNECT 50666 220/CONNECT 52000 224/CONNECT 53333 228/CONNECT 54666 232/CONNECT 56000 236/CONNECT 57333 Adaptive Dialing Wait for 2nd Dial Tone (W) Wait for Answer (@) Fast Dial *Requires @ in dial string;...
Page 140 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 141 &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 142 &F2 Software flow control template &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).
Page 143 &K1 Auto enable/disable &K2 Data compression enabled &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.
Page 144 &N16 33,600 bps &N17 33,333 bps &N18 37,333 bps &N19 41,333 bps &N20 42,666 bps &N Continued &N21 44,000 bps &N22 45,333 bps &N23 46,666 bps &N24 48,000 bps &N25 49,333 bps &N26 50,666 bps &N27 52,000 bps &N28 53,333 bps &N29 54,666 bps &N30 56,000 bps &N31 57,333 bps...
Page 145 &Sn Controls Data Set Ready (DSR) operations. &S0 DSR override; always &S1 Modem controls DSR &Tn Begins test modes. &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...
Page 146 &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 &U17 33,333 bps &U18 37,333 bps &U19 41,333 bps &U20 42,666 bps &U21 44,000 bps &U22 45,333 bps &U Continued &U23 46,666 bps &U24 48,000 bps...
Page 147 &Yn Sets break handling. &Y0 Destructive, but doesn’t send break &Y1 Destructive, expedited &Y2 Nondestructive, expedited &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).
Page 148: Dip Switches (Modems With Dip Switches Only)
DIP Switches (Modems with DIP Switches Only) Note: If a DIP switch is on, it is down. If a DIP switch is off, it is up. Defaults are in italics. Factory Switch Setting Function Data Terminal Ready (DTR) Override OFF Normal DTR operations: computer must provide DTR signal for the modem to accept commands;...
Page 149 ON Disables auto answer Factory Switch Setting Function Carrier Detect (CD) Override OFF Modem sends CD signal when it connects with another modem, drops CD on disconnect ON CD always ON (Override) Power-on and ATZ Reset Software Defaults OFF Loads Y or Y1 configuration from user-defined nonvolatile memory (NVRAM) ON Loads &F0 Generic template from read only memory (ROM) AT Command Set Recognition...
Page 150: 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 151 Sets the duration, in seconds, for the pause (,) option in the Dial command. Sets the required duration, in tenths of a second, of the remote modem’s carrier signal before recognition by the Sportster modem. Sets the duration, in tenths of a second, that the modem waits to hang up after loss of carrier.
Page 152 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 153 Register Default Function S13 (cont.) Value The 1.5K-byte non-ARQ buffer allows data transfer with Xmodem- and Ymodem-type file transfer protocols 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 154 Register Default Function S15 (cont.) Value 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. Value 4-128 Reserved Test timer for &T loopback testing. Sets the time in seconds of testing before the modem automatically times out and terminates the test.
Page 155 Register Default Function Sets the duration, in minutes, for the inactivity timer. The timer activates when there is no data activity on the phone line; at time-out the modem hangs up. S19 = 0 disables the timer. Reserved Sets the length, in 10-millisecond units, of breaks sent from the modem to the computer;...
Page 156 Register Default Function Bit-mapped register setup. To set the register, see instructions for S13. Value ECHNICAL UICK EFERENCE Result 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.
Page 157 Register Default Function 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 158 Register Default Function Bit-mapped register setup. To set the register, see the instructions for S13. Value Bit-mapped register setup. To set registers, see instructions for S13. Value ECHNICAL UICK EFERENCE Result Disable 2400 symbol rate. Disable 2743 symbol rate. Disable 2800 symbol rate. Disable 3000 symbol rate.
Page 159 Register Default Function S34 (cont.) Value Reserved S36-S37 Reserved 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 160 Register Default Function S39-S40 Reserved Bit-mapped register setup. To set registers, see instructions for S13. Value Reserved ECHNICAL UICK EFERENCE Result Distinctive ring enabled.
Page 161: The Serial Interface
FCC regulations require the use of a shielded cable when connecting a modem to a computer to ensure minimal interference with radio and television. Pin assignments are factory-set in the Sportster modem to match the standard DB-25 assignments in the following table. DB-9 connectors for IBM/AT-compatible computers should be wired at the computer end of the cable as shown in the DB-9 column.
Page 162: Serial Interface Pin Definitions
Serial Interface Pin Definitions DB-25 DB-9 Circuit Function — Chassis Ground Transmitted Data Received Data Request to Send Clear to Send Data Set Ready Signal Ground Carrier Detect — Speed Indicate Data Terminal Ready Ring Indicate ECHNICAL UICK EFERENCE Signal Source Computer/Modem Both Computer...
Page 163: Regulatory Information
U.S. Robotics 7770 North Frontage Road Skokie, Illinois 60077-2690 U.S.A. declares that the product U.S. Robotics Sportster 56K Faxmodem conforms to the FCC’s specifications: Part 15: Operation is subject to the following two conditions: (1) this device may not cause harmful...
Page 164: Caution To The User
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. See installation instructions for details. Caution to the User...
Page 165: Connecting To The Telephone Company
However, the telephone company may request the telephone number(s) to which the Sportster modem is connected and the FCC information printed on this page. Be sure that the telephone line you are connecting the modem to is a standard analog line and not a digital (PBX), party, or coin telephone line.
Page 166: 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 167: For Canadian Modem Users
For Canadian Modem Users NOTICE: The Industry Canada (IC) label identifies certified equipment. This certification means the equipment meets certain telecommunications network protective, operational, and safety EGULATORY NFORMATION requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document(s).
Page 168 users to connect their 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...
Page 169 Keating Technologies 25 Royal Crest Court, Suite 200 Markham, ONT L3R 9X4 AVIS: L'étiquette de Industrie Canada identifie le matériel homologué. Cette étiquette certifie que le matériel est conforme à certaines normes de protection, d'exploitation et de sécurité des réseaux de télécommunications. Le Ministére n’assure toutefois pas que le matériel fonctionnera à...
Page 170: Limited Warranty
Avertissment: L’utilisateur ne doit pas tenter de faire ces raccordements luimême; il doit avoir recours à un service d’inspection des installations électriques, ou á un électricien, selon le cas. NOTICE: L’Indice d’Equivalence de la Sonnerie (IES) de chaque appareil donne une indication du nombre maximal de terminaux qui peut être branché...
Page 171 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. THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED...
Page 172 above exclusion or limitation may not apply to you. To obtain service under this limited warranty, contact the U.S. Robotics Technical Support Department at 847-982-5151 or by mail at 3Com, 7770 N. Frontage Road, Attn.: Technical Support Dept., Skokie, Illinois 60077-2690.
Page 173: Index
America Online, U.S. Robotics online support and, 108-109 American Standard Code for Information Interchange. See ASCII analog loopback, 113 analog phone lines, vs. digital, 18, 26, 33, 37 analog signals, 113 answer mode, 113 AOL. See America Online, U.S. Robotics online support and ARQ.
Page 174 carrier, 115 carrier detect (CD) light, 124 character, 115 characters per second (cps), 115 low, errors and, 103 class 1 and 2.0 faxing standards, 115 clear to send (CS) light, 124 COM ports conflicts with IRQs, 99-100 and Plug and play installations, 6, 21- COM drivers, outdated, 104 command summary, 125-139 communications software...
Page 175 data compression table, 115 data mode, 116 data terminal (terminating) equipment (DTE), data terminal ready (TR) light, 124 default settings, 116 detect phase, 116 dictionary, 116 digital loopback, 116 digital signals, 116 DIP switches, 140-141 DTE. See data terminal (terminating) equipment duplex, 116 EIA.
Page 176 front panel lights, summary, 124 FTP, U.S. Robotics online support and, 108 full duplex, 117 glossary, 113-122 half duplex, 117 hertz (Hz), 118 internal modems faxing with, 58-60 hardware installation Windows 3.x, 5-20 Windows 95, 21-29 Index and Plug and Play installation, 6, 21- International Telegraph and Telephone Consultative Committee (ITU-T), 118...
Page 177 Link Access Procedure for Modems (LAPM), local echo, 118 turning off, 101 Microcom Networking Protocol (MNP), 118 MNP. See Microcom Networking Protocol Modem Station, 63-86 installing, 63-65 using, 66-86 Modem Update Wizard, 87-98 installing, 87-91 using, 92-98 nonvolatile memory (NVRAM), 118 Index NVRAM.
Page 178 installing, 43-58 troubleshooting, 110-111 read only memory (ROM), 120 received data (RD) light, 124 remote digital loopback, 119 remote echo, 119 s-registers, 142-152 send data (SD) light, 124 serial cable, purchasing, 31-32, 35-36 serial interface, 153-154 pin definitions, 154 serial number, modem, 15, 23 serial (COM) ports, 5-14, 21-22, 32, 36 conflicts, 99-100 serial transmission, 118...
Page 179 U.S. Robotics BBS, 105-106 online help resources, 105-109 Technical Reference Guide, downloading, 106-108 Technical Support Hotline, 109 V.17 fax transmissions, errors and, 104 World Wide Web (WWW), U.S. Robotics online support and, 108 x2 technology, 2-3 Xmodem, 122 Index xon/xoff, 122 Ymodem, 122 Ymodem G, 122 Zmodem, 122...

This manual is also suitable for:

Sportster 56k

US Robotics Sportster Operating Instructions Manual

Quick Links

Troubleshooting

Related Manuals for US Robotics Sportster

Summary of Contents for US Robotics Sportster

This manual is also suitable for:

Table of Contents