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U.S. R

OBOTICS

ODEM

PDATE

IZARD

installed to. Make a note of this
information if you haven’t already.

•

Windows will now restart.

•

After the system finishes testing your
modem, you will see a screen indicating
that your modem was successfully
installed. Congratulations—you have
successfully updated your Winmodem!

•

When you see the screen telling you to
remove the diskette after clicking the OK
button, click OK.

•

You must now restart your system in
order to complete the installation.

If you have Windows 3.xx:

•

Remove the diskette from the drive.

•

After exiting Windows, turn off your
computer.

•

Turn on your computer and restart
Windows.

If you have Windows 95:

•

Windows will automatically shut down your
system.

•

When you see a screen saying “It’s now
safe to turn off your computer”, turn off
your computer.

•

Remove the diskette from the drive and turn
the computer back on.

14.

Windows will test your modem and then
display a screen indicating that your update
was successful.

Congratulations—you have successfully
updated your Winmodem to the latest
technology!

Содержание 002605-00 -

Страница 1: ...ape Navigator is a trademark of Netscape Communications Corp Any other trademarks trade names or service marks used in this manual are the property of their respective owners 1997 3Com Corporation or its subsidiaries 7770 North Frontage Road Skokie IL 60077 2690 All Rights Reserved IMPORTANT All x2 products are capable of 56 kbps downloads however due to FCC rules which restrict power output of th...

Страница 2: ...indows 950 or 950a 10 Installing the Winmodem Software Under Windows 950b 12 Uninstalling the Winmodem Software in Windows 95 16 Windows 3 x Hardware Installation 19 How to Insert the Modem 20 Running the Installation Program on a Windows 3 1 or 3 11 System 23 Software Installation and Testing 29 Software Installation and Registration using the Setup Wizard 29 Sending Your First Fax 44 Using Other...

Страница 3: ...es 68 Connecting to the 3Com BBS 68 Downloading the Technical Reference Guide 69 World Wide Web 71 CompuServ 71 America Online 71 Fax and Technical Support Hotline 71 RapidComm Trouble Shooting Tips 73 Using Modem Station 75 Installing Modem Station 75 Using Detect New Modems 80 Using Terminal 82 Using Modem Configurator 84 Using Modem to Computer 87 ...

Страница 4: ...iv The Extended Information Screens 92 Glossary 93 Technical Quick Reference 107 Command Summary 108 S Registers 123 Regulatory Information 134 Fax Branding 136 For Canadian Modem Users 138 Limited Warranty 142 Index 144 ...

Страница 5: ...output of your service provider s modems current download speeds are limited to 53 kbps This modem is software upgradable allowing easy upgrades to new features and enhancements as they become available An integrated end to end solution from the leader 3Com is well positioned to bring you x2 Technology Our U S Robotics Sportster modems are the world s number one seller and our Total ControlTM and ...

Страница 6: ...han modulation it can give you download speeds that you never thought possible What s more with standard V 42 bis compression x2 can download at speeds up to a blistering 115 2 kbps Updating x 2technology is easy and FREE Read the section of this manual titled U S Robotics Modem Update Wizard page 41 for information about using this software on the Connections CD to update your modem s code to the...

Страница 7: ...T V 17 ITU T V 29 ITU T V 27ter ITU T V 21 Fax Standards EIA 578 Class 1 FAX EIA 592 Class 2 0 FAX Front Channel Link Rates 33333 37333 41333 42666 44000 45333 46666 48000 49333 50666 52000 53333 54666 56000 57333 Back Channel Link Rates 4800 7200 9600 12000 14400 16800 19200 21600 24000 26400 28800 31200 V 34 Link Rates 4800 7200 9600 12000 14400 16800 19200 21600 24000 26400 28800 31200 33600 V ...

Страница 8: ...tallation Guide Plus a screwdriver not included NOTE These instructions are for Windows 95 users If your computer is running Windows 3 x please refer to the online documentation included on the Connections CD ROM The software installation instructions in the Software Installation and Testing section of this manual apply to both Windows 95 and Windows 3 x users ...

Страница 9: ...ich version of Windows 95 you have Please follow these instructions to check Checking Your Version of Windows 95 1 Start Windows Right click the My Computer icon 2 Select Properties 3 Find your version number in the upper right corner of the General screen below In the example preceding the version is 950a ...

Страница 10: ... modem came in If you ever need to call our technical support department the technical support representative will ask you for the serial number This will help him or her identify the type of modem you have 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 If you haven t added accessories to yo...

Страница 11: ...ver should be the same Refer to your computer manufacturer s manual if you need further instructions 4 Find an empty ISA expansion slot that s at least as long as the gold edge of your modem ISA slots are black plastic grooves lined with metal Unscrew and remove the expansion slot cover the long narrow piece of metal that keeps dust from entering through the opening that s perpendicular to the slo...

Страница 12: ... a gentle back and forth motion helps get the modem all the way into the slot If you feel resistance the modem may not be properly lined up with the slot Do not force it Take the modem all the way out and try again 5 Once the modem is seated secure it using the screw you removed in step 4 6 Put the computer s cover back on and replace the screws 7 If you currently have a phone plugged into the wal...

Страница 13: ...L lines Attaching your modem to a digital line will damage the modem 9 Plug the other end of the cable into the wall jack 10 If you want to use a telephone on the same line as the modem plug the telephone s cable into the modem s PHONE jack 11 Plug the power cords cables and peripherals back into the computer and turn the computer on ...

Страница 14: ... Driver from disk option is not already selected select it now Click Next to continue 2 When you see this screen insert the Winmodem floppy disk and Click OK 3 You will see a screen confirming that you are installing a Winmodem When that finishes remove the Winmodem disk The following screen tells you which communications port your Winmodem has been installed to ...

Страница 15: ...start Click Yes on this screen to restart Windows 5 When Windows restarts check to see if the Winmodem is correctly installed Click Start and point to Settings Click Control Panel You should see a new Winmodem icon like the one pictured below Turn to the section entitled Software Installation and Testing page 21 to begin installing your RapidComm communications software ...

Страница 16: ...nstalling the Winmodem software under Windows 950b The procedure for installing your Winmodem software is slightly different under Windows 950b Please follow these instructions to install your software 1 When you see this screen after Windows starts DO NOT click anything DO NOT press ENTER Instead insert your Winmodem disk in your floppy drive Once you ve installed the Winmodem software the modem ...

Страница 17: ...LLATION 13 2 Click Next on this screen to continue 3 When you see this screen click Finish NOTE If you see the screen below instead of the screen preceding click the Back button 4 When you see this screen click the OK button ...

Страница 18: ...iles from box Then click OK 6 You will see a series of screens as files copy and drivers build 7 Finally you will see a screen telling you that the modem has been installed This screen will also show the COM port assignment for the modem Click OK 8 Windows will now restart 9 Once Windows restarts check the installation by going into the Control Panel ...

Страница 19: ...ou did not see a Winmodem icon or the screen directly above if you instead got a message that files are corrupt turn to the section entitled Re Installing the Winmodem Software 12 For instructions on how to install the RapidComm fax data software go to the section entitled Software Installation and Testing page 21 ...

Страница 20: ... icon and then select Uninstall Follow the onscreen prompts After running the uninstall please follow these steps to insure that the Winmodem software has been completely removed from your system 1 Restart Windows 2 Insert the Winmodem disk that came with your new modem into your floppy drive 3 Start the Windows Explorer program 4 Click the icon for your floppy drive ...

Страница 21: ... was found Otherwise when you see this screen click Yes 7 When you see this screen click OK 8 Shut down your computer 9 Start Windows 10 If you are uninstalling your Winmodem Software due to a failed installation please proceed to the section entitled Installing the Winmodem Software under Windows 950 or 950A page 11 or the section entitled Installing the Winmodem Software under Windows 950b page ...

Страница 22: ...re using please refer to the section entitled Checking your Windows Version page 6 These instructions cover the installation of the Winmodem hardware and the accompanying software under Windows 3 x These instructions are for users of either Windows 3 1 Windows 3 11 or Windows for Workgroups ...

Страница 23: ...n Guide Plus a screwdriver not included This chapter will walk you through the installation of your Winmodem There are two parts to the installation hardware the modem and software The modem must be installed before the software Plug and Play Your Winmodem supports Plug and Play installation the fastest easiest way to add new features a modem a sound card etc to your PC ...

Страница 24: ...or her identify the type of modem you have 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 If you haven t added accessories to your computer before we suggest labeling the cords and cables before unplugging them CAUTION To avoid being shocked make sure your computer and all peripheral devices...

Страница 25: ...you need further instructions 4 Find an empty ISA expansion slot that s at least as long as the gold edge of your modem ISA slots are black plastic grooves lined with metal Unscrew and remove the expansion slot cover the long narrow piece of metal that keeps dust from entering through the opening that s perpendicular to the slot ...

Страница 26: ...times a gentle back and forth motion helps get the modem all the way into the slot If you feel resistance the modem may not be properly lined up with the slot Do not force it Take the modem all the way out and try again 5 Once the modem is seated secure it using the screw you removed in step 4 6 Put the computer s cover back on and replace the screws 7 If you currently have a phone plugged into th...

Страница 27: ...ble into the modem s PHONE jack 11 Plug the power cords cables and peripherals back into the computer and turn the computer on 12 If Windows does not start automatically please start it now Modem Initialization Your Winmodem came with a diskette that contains an installation program that will help your computer finish installing the modem The installation program will also copy modem programs from...

Страница 28: ...exe Click OK 2 The next screen will tell you where the Winmodem installation files will be located Click Continue to copy the Winmodem files to this directory If you wish to copy the Winmodem files to a different directory type the path to that directory here 3 This screen tells you that the software will create the new Winmodem directory Click Yes ...

Страница 29: ...tion software is being loaded to your hard drive Let it finish 5 This next screen tells you that modifications have been made to your Windows system files Click OK 6 This next screen tells you that the software will automatically detect available communications ports for the Winmodem Click OK ...

Страница 30: ...or the Winmodem Highlight any free one and then click OK See the troubleshooting section if the software does not locate an available COM port 8 Congratulations your Winmodem software has been installed Click Restart Windows to finish the process 9 Windows will now restart At this point you will see a new Winmodem group like ...

Страница 31: ... O address and an available IRQ Do not select Let plug and play configure For the I O address Choose any on the list For the IRQ The COM port IRQ combinations shown here work with most computer set ups COM IRQ 1 4 2 3 3 5 7 or 9 4 5 7 or 9 If you have a sound card SCSI card or game card it might be using IRQ 5 or 7 Do not make 5 or 7 your first choice then because it might not be available ...

Страница 32: ... dialog box that appears If you chose an unavailable IRQ you may encounter problems when your communications software program tells you it cannot find the modem At that point choose another IRQ in the Configuration dialog box You can find it by clicking on the Configurator icon in the Winmodem group in the Program Manager window Once you ve finished installing your modem you are ready to install t...

Страница 33: ...uter desktop You can build your own fax directory send faxes to specified groups of phone numbers request individual cover pages when necessary and send individual faxes without exiting your word processing program Additionally RapidComm lets you connect to BBSs and other online data providers Take advantage of this access to enter a new world of information and entertainment NOTE The following in...

Страница 34: ...k Start and select Run 2 In the Run 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 Click OK 3 You will briefly see a screen that looks like this 4 When you are asked if you wish to run the Setup Wizard click Yes ...

Страница 35: ... TESTING 31 5 This is the introduction to the Setup Wizard After reading this screen click Next 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 ...

Страница 36: ...on each screen when you have filled in all of the necessary information 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 Microsoft s Internet Explorer on your system If the Setup Wizard does not find Internet Explorer it will automatically install the application later in the Setup Wizard process ...

Страница 37: ...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 ...

Страница 38: ...verify that your Sportster is correctly installed Choose By Modem by clicking OK 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 pause after d...

Страница 39: ...ons CD ROM 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 When you see the following screen cl...

Страница 40: ... screen Click Yes Windows 95 users Windows will restart and the Connections CD will launch automatically upon restart 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 on this icon to launch the CD ...

Страница 41: ... in the menu on the left hand side of the screen circled below 16 Double click the RapidComm button on the Business Productivity menu 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 ...

Страница 42: ...arn More Get Software circled in the screen image below 18 The next screen displays information about RapidComm You can use the scroll bar on the right hand side of the screen to scroll through the text When you are ready to install RapidComm click Install circled in the lower left hand corner of the following screen image ...

Страница 43: ... wish to copy the RapidComm files to a different directory type that location in the text box before clicking on Install 20 You will see this screen as files are copied 21 When you see this screen click on 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 If you click No RapidComm w...

Страница 44: ... you must select 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 Clicking OK returns you to the Connections interface Click Exit circled in the following screen image ...

Страница 45: ...g the Restart the Computer option from the Shut Down menu in the Windows Start menu 25 When your desktop appears launch RapidComm from the Windows Start menu 26 The following screen is the first screen of the RapidComm Setup Wizard After you read the screen click Next ...

Страница 46: ...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 28 After you verify the information on this screen click Next ...

Страница 47: ...n Then click Next 30 When you see this screen If you want RapidComm to launch with every Windows startup click on the box to the left of Run RapidComm at Windows startup A check will appear in the box Then click Finish If you do not want RapidComm to start every time you start Windows simply click Finish ...

Страница 48: ...ax machine Once you learn the basics of sending faxes you can learn more involved fax 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 manual on your Connections CD This chapter will walk you through sending your first fax 1 Open an application in which you can create do...

Страница 49: ...pplication to indicate that you are ready to print in the Print dialog box 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 U S Robotics fax number 847 676 3559 NOTE If you need to enter a prefix such as 9 to dial a number outside your building type the prefix before the fax number in the Fax Number field ...

Страница 50: ...een successfully transmitted you will see a screen that looks like the screen on the right Congratulations you are now ready to start using your Winmodem 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 Winmodem and RapidComm ...

Страница 51: ...munications software programs will ask you to specify the modem you are using Select a U S Robotics Sportster high speed modem If that selection is not listed select U S Robotics Courier V Everything or one of the other Courier high speed modems D KEY POINT Refer to the manual that came with your software for its installation instructions The software s installation program will ask you questions ...

Страница 52: ...ow control select XON XOFF NOTE Disable the type of flow control hardware or software that you are not using 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 referred to as autobaud select OFF ...

Страница 53: ...NOTE You can obtain the Modem Update Wizard from our BBS 847 982 5092 or from our World Wide Web page www usr com if you do not have a Connections CD ROM NOTE Complete the instructions in the Software Installation and Testing section of this manual before installing the Modem Update Wizard NOTE These instructions pertain to Windows 3 x and Windows 95 However only Windows 95 screen shots are shown ...

Страница 54: ...From the Windows Start menu point to Programs point to U S Robotics Connections and select Connections NOTE Windows 3 x users launch the CD ROM by clicking on the Connections icon in the Connections program group 3 From the main Connections menu click Customer Support circled in the following screen shot ...

Страница 55: ...U S ROBOTICSMODEMUPDATEWIZARD 51 4 When the Customer Support menu appears click on the Modem Update Wizard button circled in the following screen shot ...

Страница 56: ...U S ROBOTICSMODEMUPDATEWIZARD 52 5 Next click on the Learn More Get Software button circled in the following screen shot 6 In the following screen click on the Install button circled below ...

Страница 57: ...EWIZARD 53 7 This launches the U S Robotics Modem Update Wizard Installer You will see the following screen for a moment 8 The screen that follows is the welcome screen for the installer After you read this screen click Next ...

Страница 58: ...table click Next Otherwise click Browse to find an acceptable directory 10 You will see the following screen for a moment as the installer creates the Modem Update Wizard program group 11 This screen indicates that the setup is complete Click OK Operation 1 Close any other Windows applications and start the program by clicking Start and pointing to Programs ...

Страница 59: ...ection phase finishes you will see this screen Your screen will list any U S Robotics modems found on your system 6 Highlight the U S Robotics modem you wish to upgrade and click Next to continue 7 A screen will tell you to have a blank formatted diskette ready You ll save downloaded files to the diskette If you do not have a diskette you can save the files to your hard drive We recommend you save...

Страница 60: ... Dial You will see a series of screens as the files are downloaded 10 When you see this screen Insert a blank formatted diskette If you prefer to copy the files to your hard drive click Browse to select the drive and folder to store the files in We highly recommend saving the Winmodem update files to diskette This ensures that they will be available in the event you have to reinstall your Winmodem...

Страница 61: ...puter Turn on your computer and restart Windows If you have Windows 95 Windows will automatically shut down your system When you see a screen saying It s now safe to turn off your computer turn off your computer Remove the diskette from the drive Restart Windows by turning the computer back on 13 When your system restarts If you have Windows 3 xx Click the File menu from Program Manager and then c...

Страница 62: ... backups have been made of your Windows system files When you see the screen on the right choose one of the COM ports labeled Free and then click OK The next screen will ask you to restart Windows Click OK to restart Windows When Windows restarts you will see the screen on the next page Note if your system is Plug and Play capable Windows may automatically configure your modem In that case you wil...

Страница 63: ...u do not see this screen up front on your desktop look behind your Program Manager screen Select the IRQ and I O Address settings that your Winmodem has been using and click OK Note If you do not know what the settings are try different settings ...

Страница 64: ...ou have Windows 95 You will see a series of New Hardware Found screens after Windows restarts You will then see a screen asking you to select which driver to use to install your new hardware Select Driver from disk provided by manufacturer If you saved the files downloaded from the server to diskette recommended insert that diskette into your diskette drive Select the letter for your diskette driv...

Страница 65: ...restart your system in order to complete the installation If you have Windows 3 xx Remove the diskette from the drive After exiting Windows turn off your computer Turn on your computer and restart Windows If you have Windows 95 Windows will automatically shut down your system When you see a screen saying It s now safe to turn off your computer turn off your computer Remove the diskette from the dr...

Страница 66: ...BLESHOOTING AND ONLINE HELP RESOURCES 62 This section provides you with some fast solutions to common modem problems It also explains how to contact us via our various Internet sites and how to use our BBS ...

Страница 67: ...ring modem commands properly Local echo is activated on both the modem and the software Solutions The Winmodem requires FULLY Windows based software Some software may run in Windows but have DOS components Check with your software manufacturer for more information Check to make sure that you have the correct COM port and IRQ settings assigned in your software and in Windows Modem commands must be ...

Страница 68: ... cord should run from the wall jack to the TELCO jack on the modem Do not use a cord longer than 12 feet Use the cord included with your Winmodem if possible If you are unsure if you have a digital line contact your phone company Plugging your modem into a digital line can damage the modem There should be no line splitters fax machines etc between the modem and the wall jack Place the call again T...

Страница 69: ...trol settings The optimum flow control settings may not be enabled on your modem The phone connection might not be able to handle high speed data transmission Solutions Check to make sure that auto answer is enabled in your software In RapidComm type ATS0 1 in Terminal Mode Set your modem s word length parity and stop bits to match those the remote modem is using Make sure that your software and y...

Страница 70: ...uble with the file transfer protocol you are using There may be a memory resident program such as a virus checker clock or calendar program or system monitoring software running in the background Solutions Try placing the call again The phone company routes calls differently each time Type AT F1 and press the ENTER key while in Terminal Mode Lower the serial port rate settings in your communicatio...

Страница 71: ...too high RapidComm s port settings may be incorrect Solutions Enter the following initialization string in your software setup screen AT H3 I2 R2S7 90 Some memory resident programs can interfere with data or fax communications Disable any memory resident programs running in the background Load the comdriver that came with your fax software This may require re installation of your modem software Lo...

Страница 72: ... emulation Data Bits 8 Parity None Stop Bits 1 2 Put RapidComm in Terminal mode by clicking on the Terminal button see the following screen image 3 Type the following command ATDS0 and press ENTER NOTE ATDS0 automatically dials 1 847 982 5092 the U S Robotics BBS If you must dial a number such as 9 to reach an outside line instead type ATDT9 18479825092 If you dial a different number substitute th...

Страница 73: ...at the introduction screen of the 3Com BBS will look like Using the BBS you can send a message to Technical Support or access the U S Robotics File Library The library contains hundreds of helpful files and tips to make using your modem and computer a breeze Downloading the Technical Reference Guide 1 To download the Technical Reference Guide follow these steps From the main menu select D for Down...

Страница 74: ...for Transfer Your selection depends on what your software supports If possible make Zmodem your first choice Xmodem should be your last choice since it is very slow 5 Depending on the software you are using you will either be prompted where you want the file placed or the file will be placed in the directory where your communications software is loaded 6 When the file transfer is complete and you ...

Страница 75: ...ge containing the same information as the Internet on Demand listing as well as information about U S Robotics Log on to http www usr com correct web address CompuServe Access U S Robotics Support and Service by selecting GO USRobotics America Online Connect to U S Robotics through America Online Go to the Keyword field and type USROBOTICS to connect to various U S Robotics resources such as file ...

Страница 76: ...elp you contact 3Com U S Robotics Customer Support When you call specify your modem serial number found on the modem and on the outside of the box the software being used and if possible the contents of your ATI7 screen If You Must Return the Modem to Us If the Customer Support representative determines that you need to return the modem you will receive an SRO Service Repair Order number You must ...

Страница 77: ...port the activity of the modem We are aware of this problem and are working to rectify the situation in upcoming versions of the software PROBLEM The station ID works intermittently DIAGNOSIS Under certain circumstances including receiving a fax the station ID may not work properly PROBLEM RapidComm does not work properly at 115 2 Kbps DIAGNOSIS The presence of disk compression software on your sy...

Страница 78: ...omm on Their Systems You must uninstall older versions of RapidComm from your system before installing the most recent version contained on the CD ROM that came with your new 56K modem Otherwise you may introduce conflicts in your system that will hamper RapidComm s ability to work properly ...

Страница 79: ...ing 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 Installing Modem Station If you did not install Modem Station when you first installed the Connections CD please follow these instructions 1 Place the Connections CD in your ...

Страница 80: ...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 to continue 9 When you see this screen click Next to accept the default directory or choose Browse to change directories ...

Страница 81: ... default program folder You can place Modem Station in an existing folder by selecting one from the list 11 When you see the next 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 ...

Страница 82: ...tart Modem Station from the Setup Program please start it now 2 Click Start and point to Programs Select U S Robotics Modem Station or the folder you selected during installation 3 Double click the Modem Station icon This brings up the main menu shown on the right ...

Страница 83: ...r modem and displays the responses You can use Terminal to dial up BBSs In addition you can configure your modem using Terminal However it is much easier to use the Modem Configurator MODEM CONFIGURATOR Modem Configurator provides an easy to use interface for entering hard to remember commands Use Modem Configurator for troubleshooting initial configuration and tuning your modem for optimum perfor...

Страница 84: ...and help files from our Web sites and BBS or receive individualized support via support usr com Type 0000 4 zeroes in the subject line of your e mail Using Detect New Modems 1 Click Detect New Modems to bring up this screen The screen consists of four columns one for each possible COM port on a PC You can choose a specific port s to scan by clicking the checkbox for that port 2 Click Scan to have ...

Страница 85: ...t displays a Port Error it usually means that the port is disabled in system setup NOTE Different systems and BIOSes use different methods of disabling COM ports As a result we cannot provide support for enabling COM ports Please refer to your system s documentation or contact the manufacturer of your system for further information If you look at the information for the port your modem is using yo...

Страница 86: ...ion Using Terminal You can access Terminal from either the main menu or the Detect New Modems screen Clicking Terminal to bring up the Terminal window In addition to allowing direct entry of modem commands the Terminal screen also allows you to dial into Bulletin Boards listing services and other online services ...

Страница 87: ...t speed is the speed at which your computer sends data to the modem We 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 on 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 g...

Страница 88: ...onfigurator from either the main menu or the Detect New Modems screen Click on the Modem Configurator button to bring up this menu 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 ...

Страница 89: ...reen you will see the data control commands currently in use Once you have entered the Data Control settings click on 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 DIP switches are tiny switches that control a few basic functions on some external modems On modems without DIP switches these f...

Страница 90: ... settings 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 ...

Страница 91: ...ing 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 If you look in the upper right 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 CONNECTION RATES R...

Страница 92: ...ference sections of this manual Click on Help to see quick definitions of terminology used in this screen This screen also includes a chart of the ways result codes can be displayed Click on Codes to view a chart of the display options Once you configure your settings click on Save To Modem to save your choices CONNECTION RATES The Connection Rates screen allows you to configure modem speeds and p...

Страница 93: ...ick on Exit to return to the Modem Configurator menu Please refer to the main body of the manual and the Glossary for detailed information about the terminology and settings used in this screen Click on Help for quick definitions of terminology used in this screen DIALING ANSWERING The next screen allows you to adjust how your modem initiates and receives calls Using this screen you can configure ...

Страница 94: ...he phone numbers currently stored in your modem s memory Use this screen to edit or add numbers stored in the modem s memory 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 at Power On or at reset This is very useful...

Страница 95: ...vice of course Once you ve entered the numbers you wish to store click on Save To Modem to store them Click on Exit to return to the main menu The last option Restore Defaults resets your modem to factory specifications This option is available from many of the screens within Modem Station When you select Restore Defaults you will see a confirmation screen asking if you are sure you want to Restor...

Страница 96: ...tion about your modem Extended Information makes it more efficient and convenient for a technician to gain access to that information If you need to call Customer Support for assistance with your modem the Support representative may instruct you to go into the Extended Information screens if needed to continue troubleshooting ...

Страница 97: ...wavelengths that can be transmitted over communications lines such as the sound of a voice over the phone line Contrast with digital signals answer mode The mode used by your modem when answering an incoming call from an originating modem The transmit receive frequencies are the reverse of the originating modem which is in originate mode application A computer program designed to perform a specifi...

Страница 98: ...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 to dial Auto dial is used to dial voice numbers See command Dn baud rate A term used to measure the s...

Страница 99: ...ilobits per second or Kbps buffer A memory area set aside to be used as temporary storage during input and output operations An example is the modem s command buffer byte A group of binary digits stored and operated upon as a unit In user documentation the term usually refers to 8 bit units or characters One kilobyte KB is equal to 1 024 bytes or characters 640 KB indicates 655 360 bytes or charac...

Страница 100: ...ing and receiving faxes cyclic redundancy checking CRC An error detection technique consisting of a test performed on each block or frame of data by both sending and receiving modems The sending modem inserts the results of its tests in each data block in the form of a CRC code The receiving modem compares its results with the received CRC code and responds with either a positive or negative ackno...

Страница 101: ...ITU T V 42 error control protocol the first stage in establishing if both modems attempting to connect have V 42 capability dictionary The term used for compression codes built by the V 42 bis data compression algorithm digital loopback A test that checks the modem s RS 232 interface and the cable that connects the terminal or computer and the modem The modem receives data in the form of digital s...

Страница 102: ...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 facsimile A method for transmitting the image on a page from one point to another Commonly referred to as fax fax mode The mode in which the faxmodem is capable of sending and receiving files in a facsimile format See definitions for...

Страница 103: ...omputer 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 Hz Hertz a frequency measurement unit used internationally to indicate one cycle per second ITU T An international organization that defines standards for telegraphic and telephone equipment For example the Bell 212A standard fo...

Страница 104: ... the screen See command Hn MNP Microcom Networking Protocol an error control protocol developed by Microcom Inc and now in the public domain There are several different MNP protocols but the most commonly used one ensures error free transmission through error detection CRC and retransmission of erred frames modem A device that transmits receives computer data through a communications channel such ...

Страница 105: ... 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 originate mode The mode used by your modem when initiating an outgoing call to a destination modem The transmit receive frequencies are the reverse of the called modem which is in answer mode parity A simple error detection method that checks the vali...

Страница 106: ...power is turned off The modem s RAM holds the current operational settings a flow control buffer and a command buffer remote digital loopback A test that checks the phone link and a remote modem s transmitter and receiver remote echo The sending system displays data sent to the remote system Remote echoing is a function of the remote system ROM Read Only Memory Permanent memory not user programmab...

Страница 107: ...econd without the overhead of protocol information such as start stop bits or frame headers and trailers Compare with characters per second V 8 The ITU T standard specification that covers the initial handshaking process 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...

Страница 108: ...ulation at 9600 bps with fallback to 7200 bps V 32 An ITU T standard for modem communications at 9600 bps and 4800 bps V 32 modems fall back to 4800 bps when line quality is impaired 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...

Страница 109: ...version commonly found in modem connections X2 connections require an X2 capable modem calling a digitally connected X2 capable host 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 ...

Страница 110: ...odem except it includes no error checking which makes it faster Zmodem Similar to Xmodem and Ymodem except it includes batch transfer the ability to recover from a partially complete transfer an autostart feature and improved efficiency ...

Страница 111: ...TECHNICAL QUICK REFERENCE 107 This section includes information about Command Summary S Registers ...

Страница 112: ...ic options and you don t include a number zero is assumed For example if you type ATB the command ATB0 is assumed Every command except A and must begin with the AT prefix and be entered by pressing Return The maximum command length is 58 characters The modem doesn t count the AT prefix carriage returns or spaces Note All defaults are based on the F1 Hardware Flow Control template loaded in NVRAM w...

Страница 113: ...fix or a Carriage Return Any key Aborts off hook dial answer operation and hangs up AT Required command prefix except with A and Use alone to test for OK result code Bn U S ITU T answer sequence B0 ITU T answer sequence B1 U S answer tone Dn Dials the specified phone number Includes the following L Dials the last dialed number P Pulse rotary dial R Originates call using answer reverse frequencies ...

Страница 114: ...ter dialing Dials the letters that follow in an alphabetical phone number Exclamation point Flashes the switch hook Delays for 125 ms before proceeding with dial string W Wait for second dial tone X2 or X4 linked to S6 register Dials waits for quiet answer and continues X3 or higher Displays a list of Dial commands En Sets local echo E0 Echo OFF E1 Modem displays keyboard commands ...

Страница 115: ...ceives Hn Controls ON OFF hook H0 Hangs up goes on hook H1 Goes off hook In Displays the following information I0 Four digit product code I1 Results of ROM checksum I2 Results of RAM checksum I3 Product type I4 Current modem settings I5 Nonvolatile memory NVRAM settings I6 Link diagnostics I7 Product configuration Mn Operates speaker M0 Speaker always OFF M1 Speaker ON until CONNECT M2 Speaker alw...

Страница 116: ...isplays suppresses result codes Q0 Displays result codes Q1 Quiet mode no result codes Q2 Displays result codes only in Originate mode Sr b n Sets bit b of register r to n 0 OFF or 1 ON Sr n Sets register r to n Sr Displays contents of S Register r S Displays a list of the S Registers T Sets tone dial Vn Displays verbal numeric result codes V0 Numeric codes V1 Verbal codes ...

Страница 117: ...CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIAL TONE 7 BUSY 8 NO ANSWER 10 CONNECT 2400 13 CONNECT 9600 18 CONNECT 4800 20 CONNECT 7200 21 CONNECT 12000 25 CONNECT 14400 43 CONNECT 16800 85 CONNECT 19200 91 CONNECT 21600 99 CONNECT 24000 103 CONNECT 26400 107 CONNECT 28800 151 CONNECT 31200 155 CONNECT 33600 ...

Страница 118: ...TECHNICAL QUICK REFERENCE 114 Xn continued Xn Setting Functions X0 X1 X2 X3 X4 Adaptive Dialing Wait for 2nd Dial Tone W Wait for Answer Fast Dial Requires in dial string replaces NO CARRIER ...

Страница 119: ... Resets modem to NVRAM profile 0 Z2 Resets modem to NVRAM profile 1 Z3 Resets modem to factory default profile 0 F0 Z4 Resets modem to factory default profile 1 F1 Z5 Resets modem to factory default profile 2 F2 Displays a list of ampersand commands An enables disables additional result code subsets see Xn A0 ARQ result codes disabled A1 ARQ result codes enabled A2 V 32 modulation indicator added ...

Страница 120: ...iable in non ARQ mode Cn Controls Carrier Detect CD signal C0 CD override C1 Normal CD operations Dn Controls Data Terminal Ready DTR operations D0 DTR override D1 DTR toggle causes online Command mode D2 Normal DTR operations D3 Resets on receipt of DTR Fn Loads a read only non programmable factory configuration F0 Generic template F1 Hardware flow control template F2 Software flow control templa...

Страница 121: ...Transmit Data TD flow control see also Rn H0 Flow control disabled H1 Hardware flow control Clear to Send CTS H2 Software flow control XON XOFF H3 Hardware and software flow control In Sets Receive Data RD software flow control see also Rn I0 Software flow control disabled I1 XON XOFF signals to your modem and remote system I2 XON XOFF signals to your modem only Kn Enables disabl es data compressi...

Страница 122: ...de error control disabled M1 Reserved M2 Reserved M3 Reserved M4 Normal ARQ M5 ARQ mode Nn Sets connect speed If modem cannot connect at this speed the modem will hang up Sets ceiling connect speed if Un is greater than 0 See Un N0 Variable rate N1 300 bps N2 1200 bps N3 2400 bps N4 4800 bps N5 7200 bps N6 9600 bps N7 12 000 bps N8 14 400 bps N9 16 800 bps N10 19 200 bps N11 21 600 bps N12 24 000 ...

Страница 123: ...50 666 bps N27 52 000 bps N28 53 333 bps N29 54 666 bps N30 56 000 bps N31 57 333 bps 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 DSR operations S0 DSR override always ON S1 Mod...

Страница 124: ...Loopback T7 Remote Digital with self test and error detector 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 U8 14 400 bps U9 16 800 bps U10 19 200 bps U11 21 600 bps U12 24 000 bps U13 26 400 bps U14 ...

Страница 125: ...4 48 000 bps U25 49 333 bps U26 50 666 bps U27 52 000 bps U28 53 333 bps U29 54 666 bps U30 56 000 bps U31 57 333 bps Wn Writes current configuration to NVRAM templates W0 Modifies the NVRAM 0 template Y0 W1 Modifies the NVRAM 1 template Y1 Yn Sets break handling Y0 Destructive but doesn t send break Y1 Destructive expedited Y2 Nondestructive expedited ...

Страница 126: ...hone 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 3 ZL Displays the last executed dial string Escapes to online command mode ...

Страница 127: ...AutoAnswerisdisabled S1 0 Countsandstoresthenumberofringsfromanincomingcall S0mustbegreater than0 S2 43 StorestheASCIIdecimalcodefortheescapecodecharacter Defaultcharacter is Avalueof128 255disablestheescapecode S3 13 StorestheASCIIcodefortheCarriageReturncharacter Validrangeis 0 127 S4 10 StorestheASCIIdecimalcodefortheLineFeedcharacter Validrangeis 0 127 S5 8 StorestheASCIIdecimalcodefortheBacks...

Страница 128: ...nseconds forthepause optionintheDialcommand S9 6 Setstherequiredduration intenthsofasecond oftheremotemodem scarrier signalbeforerecognitionbytheSportster S10 7 Setstheduration intenthsofasecond thatthemodemwaitstohangupafterloss ofcarrier Thisguardtimeallowsthemodemtodistinguishbetweenaline disturbancefromatruedisconnect hangup bytheremotemodem Whilewedon trecommendconnectingthemodemtoalinewithca...

Страница 129: ...oppingDTRhangsupthemodem S11 70 Setsthedurationandspacing inmilliseconds fortonedialing S12 50 Setstheduration infiftiethsofasecond oftheguardtimefortheescapecode sequence S13 0 Bit mappedregister Selectthebit s youwantonandsetS13tothetotalofthe valuesintheValuecolumn Forexample ATS13 17enablesbit0 valueis1 andbit4 valueis16 Bit Value Result 0 1 Reset when DTR drops 1 2 Reset non MNP transmit buff...

Страница 130: ...th 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 This is also very helpful in situations when ...

Страница 131: ...2bis 2 4 Disable ARQ MNP V 32 V 32bis V 32terbo 3 8 Disable MNP handshake 4 16 Disable MNP level 4 5 32 Disable MNP level 3 6 64 MNP incompatibility 7 128 Disable V 42 operation S16 0 Bit mappedregistersetup Tosettheregister seeinstructionsforS13 Bit Value Result 0 1 Reserved 1 2 Touch tone dialing test 2 7 4 128 Reserved S17 0 Reserved ...

Страница 132: ...drangeis1 255 S19 0 Setstheduration inminutes fortheinactivitytimer Thetimeractivateswhen thereisnodataactivityonthephoneline attime outthemodemhangsup S19 0disablesthetimer S20 0 Reserved S21 10 Setsthelength in10 millisecondunits ofbreakssentfromthemodemtothe computer appliestoMNPorV 42modeonly S22 17 StorestheASCIIdecimalcodefortheXONcharacter S23 19 StorestheASCIIdecimalcodefortheXOFFcharacter...

Страница 133: ...ftware S26 0 Reserved S27 0 Bit mappedregistersetup Tosettheregister seeinstructionsforS13 Bit Value Result 0 1 Enables ITU T V 21 modulation at 300 bps for overseas calls in V 21 mode the modem answers both overseas and domestic U S and Canada calls but only originates V 21 calls Default Bell 103 1 2 Enables unencoded non trellis coded modulation in V 32 mode 2 4 Disables V 32 modulation 3 8 Disa...

Страница 134: ... and displays the 9600 code instead The actual rate of the call can be viewed on the ATI6 screen Used for unusual software incompatibilities S28 0 EliminatestheV 32answertonesforafasterconnection 8 Defaultitem alltimesareintenthsofseconds 255 DisablesallconnectionsexceptV 32at9600bps S29 20 Setstheduration intenthsofasecond oftheV 21answermodefallbacktimer S30 0 Reserved S31 128 Reserved ...

Страница 135: ...e enabled 1 2 Enables V 8 mode 3 8 Disable V 34 modulation 4 16 Disable 33 6 Kbps support 5 7 32 128 Reserved S33 0 Bitmappedregistersetupforthe28 8andhigherspeedmodemsonly Tosetthe register seetheinstructionsforS13 Bit Value Result 0 1 Disable 2400 symbol rate 1 2 Disable 2743 symbol rate 2 4 Disable 2800 symbol rate 3 8 Disable 3000 symbol rate 4 16 Disable 3200 symbol rate 5 32 Disable 3429 rat...

Страница 136: ... 8andhigherspeedmodemsonly Toset registers seeinstructionsforS13 Bit Value Result 0 1 Disable 8S 2D trellis encoding 1 2 Disable 16S 4D trellis encoding 2 4 Disable 32S 2D trellis encoding 3 8 Disable 64S 4D trellis encoding 4 16 Disable non linear coding 5 32 Disable TX level deviation 6 64 Disable Pre emphasis 7 128 Disable Pre coding S35 S37 Reserved ...

Страница 137: ...ndclearingofthe TransmitbufferwhenDTRdropsduringanARQcall Thisallowstimefora remotemodemtoacknowledgereceiptofalltransmitteddatabeforeitis disconnected ThemodemimmediatelyhangsupwhenDTRdrops ThisoptiononlyappliestoconnectionsterminatedbydroppingDTR Ifthe modemreceivestheATHcommand itignoresS38andimmediatelyhangsup ...

Страница 138: ...any interference received including interference that may cause undesired operations Part 68 This equipment complies with FCC Rules Part 68 Located on the bottom of the modem is the FCC Registration Number and Ringer Equivalence Number REN You must provide this information to the telephone company when requested The REN is used to determine the number of devices you may legally connect to your tel...

Страница 139: ...y responsible for compliance could void the user s authority to operate the equipment IC Canada This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the interference causing equipment standard entitled Digital Apparatus ICES 003 of Industry Canada Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux ...

Страница 140: ... modem until the source of the difficulty is traced Fax Branding The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device including fax machines to send any message unless such message clearly contains in a margin at the top or bottom of each transmitted page or on the first page of the transmission the date and time it is sent an ...

Страница 141: ...ing device in accordance with the specifications in Part 15 of FCC rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this device does cause interference to radio or television reception which you can determine by monitoring reception when th...

Страница 142: ...approved by 3Com Corporation or its subsidiaries could void the user s authority to operate the equipment 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 requirements as prescribed in the appropriate Terminal Equipment Technical Requirements ...

Страница 143: ...ipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment For your own protection make sure that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas CAUTION Do NOT attempt to ma...

Страница 144: ...ilisateur Avant d installer ce matériel l utilisateur doit s assurer qu il est permis de le raccorder aux installations de l enterprise locale de télécommunication Le matériel doit également être installé en suivant une méthode acceptée de raccordment L abonné ne doit pas oublier qu il est possible que la conformité aux conditions énoncées ci dessus n empêche pas la dégradation du service dans cer...

Страница 145: ...à 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 à l interface téléphonique La termination d une interface peut consister de n importe qu elle combinaison d appareils sur le réseau seulement si la somme des IES de tous les appareils n excède pas 5 L Indice d Equivalence de la ...

Страница 146: ...y shall not apply if the product is modified 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 THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRES...

Страница 147: ... apply to you To obtain service under this limited warranty contact the 3Com Customer Support Department at 847 982 5151 or by mail at 3Com Corporation 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 Send the product postage...

Страница 148: ...ne support and ARQ See Automatic Repeat reQuest ASCII American Standard Code for Information Interchange 97 asynchronous transmission 97 auto answer 69 98 auto dial 98 Automatic Repeat reQuest 97 115 B baud rate 98 binary digit 98 bit rate 98 bits per second bps 98 buffer 98 byte 98 C carrier 99 carrier detect CD 90 116 character 99 characters per second cps 99 low errors and 70 class 1 and 2 0 fa...

Страница 149: ...ompression table 99 data mode 100 data terminal terminating equipment DTE 100 data terminal ready DTR 116 default settings 108 detect phase 100 dictionary 100 digital loopback 100 119 digital signals 100 DTE See data terminal terminating equipment duplex 101 E error control 90 101 115 117 F facsimile fax 101 fax mode 101 faxing with RapidComm 48 50 flow control 51 52 70 101 117 119 frame 101 FTP U...

Страница 150: ...e Consultative Committee L LAPM See Link Access Procedure for Modems Link Access Procedure for Modems LAPM 102 local echo 67 91 102 110 M memory resident programs 70 71 Microcom Networking Protocol MNP 102 126 N Nonvolatile memory NVRAM 103 108 120 NVRAM See Nonvolatile memory O off on hook 68 103 111 Online fallback fall forward 103 originate mode 103 P parity 69 89 103 protocol 70 74 103 ...

Страница 151: ... 104 remote digital loopback 104 119 127 remote echo 104 S s registers 112 122 132 serial COM ports 7 16 28 35 64 67 serial transmission 104 start stop bits 104 T Technical Reference Guide downloading 73 74 throughput 104 troubleshooting 67 78 V V 17 fax transmissions errors and 59 W World Wide Web WWW U S Robotics online support and 63 X x2 106 Xmodem 106 ...

Страница 152: ...INDEX 148 Y Ymodem 106 Ymodem G 106 Z Zmodem 106 ...

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