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E

XTERNAL

M

ODEM

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NSTALLATION WITH

W

INDOWS

95

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6.

Next, click the

Diagnostics

tab at the top

of the “Modems Properties” screen. Write
down the COM setting for your modem
below. (Your screen may show a different
setting than that shown in the following
screen.) You will need to know this setting
when you install fax/data communications
software. Click

OK

.

COM Port _______

You are now ready to install the

Connections

program group and register your modem
online. Turn to “Software Installation” (

page

47

) for more information.

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Содержание 005605-00

Страница 1: ...the property of their respective owners 1998 3Com Corporation 7770 North Frontage Road Skokie IL 60077 2690 All Rights Reserved IMPORTANT In accordance with the ITU T standard for 56K transmissions this modem is capable of 56 Kbps downloads However due to FCC rules which restrict power output of the service providers modems current download speeds are limited to 53 Kbps Actual speeds may vary depe...

Страница 2: ...dem s Settings 7 Testing an Installed Modem 9 What to Do with ComTest s Recommendation 10 How to Change the Modem s Settings 12 How to Insert the Modem into the Computer 14 Internal Modem Installation with Windows 95 21 How to Prepare for Plug and Play Installation 22 How to Insert the Modem into the Computer 23 Installing the Modem Drivers 27 External Modem Installation with Windows 95 35 Determi...

Страница 3: ...Data Software 50 Type of Modem 50 Initialization String 50 Flow Control 51 UART External Modems Only 51 Using Modem Station 52 What Does Modem Station Do 52 Why Modem Station 52 Installing Modem Station 52 Starting Modem Station 55 Using Detect New Modems 57 Using Terminal 58 Using Modem Configurator 60 Using Modem to Computer 63 Using the Extended Information Screens 67 ...

Страница 4: ...nline Help Resources 76 RapidComm Voice Troubleshooting Tips 82 If Plug and Play Does Not Detect Your Modem 83 Online Help Resources 84 Are You Still Having Problems 87 If You Need to Return the Modem to Us for Repair 87 Glossary 88 Regulatory Information 102 Manufacturer s Declaration of Conformity 102 Limited Warranty 109 ...

Страница 5: ...viders that offer the ITU 56K standard technology or x2 technology to their customers 3Com is working with providers everywhere to quickly upgrade their service to the ITU 56K standard In accordance with the ITU T standard for 56K transmissions this modem is capable of 56 Kbps downloads However due to FCC rules which restrict power output of the service providers modems current download speeds are...

Страница 6: ...ards EIA 578 Class 1 FAX EIA 592 Class 2 0 FAX Front Channel Link Rates 28000 29333 30666 32000 33333 34666 36000 37333 38666 40000 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 33600 V 34 Link Rates 4800 7200 9600 12000 14400 16800 19200 21600 24000 26400 28800 31200 33600 ...

Страница 7: ...n point to Settings and then click Control Panel 2 Double click the System icon 3 When the System Properties screen appears click the Device Manager tab 4 Double click Computer and the Computer Properties screen appears 5 Select the option at the top of the screen to show Interrupt Requests IRQs You will see the IRQs your system is currently using If IRQs 3 4 5 and 7 are being used you need to fre...

Страница 8: ...on your desktop with the right mouse button 2 Click Properties 3 In the System Properties screen look at the system information under the General tab circled in the following screen image The number following the text Microsoft Windows 95 will end with 950 950a or 950b This indicates your version of Windows 95 Write this number on the blank below for later reference Then click OK Windows 95 versio...

Страница 9: ...s mouse sound card enhanced graphics card scanner etc require a special connection through which they can communicate with the computer For some devices this connection is called a communications or COM port Most computers have 1 or 2 COM ports though they can have up to 4 Although internal modems do not connect to COM ports directly they do require a COM port setting which is determined by the se...

Страница 10: ...ns cannot understand either request a computer can lock up or otherwise fail to communicate properly with your modem when there is an IRQ conflict KEY POINT Accessories cannot share COM ports and should not share IRQs When accessories try to share settings they will either not work properly or not work at all 3Com has set your modem to a default Plug and Play setting which is ideal for Windows 95 ...

Страница 11: ...tions CD into your CD ROM drive 2 In Windows Program Manager click File and then click Run Type d comtest exe and press ENTER This starts ComTest the program that determines which COM ports and IRQs are available for use by your modem 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 U S Robotics modem go to Testi...

Страница 12: ...reen like this COM2 IRQ3 is free in this example Write down the displayed settings here COM Port_________ IRQ_________ You will need to know these settings later Click Next If you do not have a free setting you will see a screen like the follwoing Click Finish to exit ComTest Go to What to Do with ComTest s Recommendation on page 10 ...

Страница 13: ...u can determine its COM and IRQ settings by selecting the Test an installed modem option Follow the instructions on screen until you see the screen that tells you 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 U S Robotics modem Write down the displayed settings here COM Port_________ IRQ...

Страница 14: ... being used the IRQ part of the setting is not acceptable When ComTest recommends either COM3 IRQ4 or COM4 IRQ3 the IRQ in the setting is being used by another accessory You could use the suggested IRQ for the modem but you run the risk that the modem and or the other accessory sharing the IRQ might not work properly If you do not have a sound card use COM3 IRQ5 Write COM3 and IRQ5 where it will b...

Страница 15: ... to How to Change the Modem s Settings on page 12 If ComTest reports that You do not have any available COM ports and or IRQs We recommend you disable COM1 or COM2 When you disable one of these COM ports you can use it and its default IRQ for your modem Go to your computer manufacturer s manual Find out which socket is COM1 and which is COM2 If nothing is plugged into either port you may choose ei...

Страница 16: ...ent during the software installation Go to How to Change the Modem s Settings on this page How to Change the Modem s Settings 1 Always touch an unpainted metal part of your computer the back is usually unpainted to discharge static electricity before handling the modem Static can damage your modem Then take the modem out of its plastic bag 2 Find the COM and IRQ jumper shunts small black plastic p...

Страница 17: ...omputer with the tweezers pliers A jumper shunt needs to be sitting on both jumper pins in order to effectively set the modem to the desired setting 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 0 1 SEL COM 1 0 1 SEL COM 3 0 1 SEL COM4 0 1 SEL COM2 Unlike most COM port settings the IRQ setting invo...

Страница 18: ...our customer support department a customer support representative will ask you for the serial number This will help him or her identify your modem 1 Turn off your computer and unplug it from the electrical outlet 2 Unplug any peripheral devices printer monitor keyboard mouse etc from the computer TIP Before you unplug anything label the cords or make a sketch of how things are connected This can b...

Страница 19: ... your computer manufacturer or review their manual if you need further instructions 4 Find an empty ISA expansion slot at least as long as the gold edge of your modem ISA slots are usually black plastic grooves lined with silver metal 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 Be careful not...

Страница 20: ...e to seat the modem properly Sometimes a gentle back and forth motion helps to fit 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 into the slot Remove the modem and try again 6 Once the modem is in the slot fasten it firmly into place using the screw that you removed in step 4 7 Replace the computer s cover and fasten...

Страница 21: ...e modem into the TELCO jack at the rear of the modem Plug the other end of the cord into the wall jack 10 If you wish to use a phone through the line the modem uses 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 11 Plug the microphone into the MIC jack on the modem 12 T...

Страница 22: ...er and turn the computer on 14 Start Windows 15 If you have your modem set to COM1 IRQ4 or COM2 IRQ3 go to Software Installation on page 47 If you have your modem configured to any other setting open Program Manager and double click the Main icon 16 Double click the Control Panel icon 17 Double click the Ports icon ...

Страница 23: ...not already selected click the COM port for your modem Then click Settings 19 Click Advanced 20 In the Interrupt Request Line IRQ box select the IRQ that ComTest recommended 21 Click OK 22 You will see a screen prompting you to restart Windows Click Restart Now ...

Страница 24: ...AL MODEM INSTALLATION WITH WINDOWS 3 X 20 When Windows restarts you are ready to install the Connections program group and register your modem online Turn to Software Installation page 47 for more information ...

Страница 25: ...OTE Complete the instructions in the section Before You Begin Windows 95 Users on page 3 before continuing with the following instructions Your new U S Robotics modem is a Plug and Play device This means Windows 95 should be able to detect your modem automatically after you plug it into your computer The next section covers preparing your new modem for Plug and Play installation ...

Страница 26: ...ake the modem out of its plastic bag 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 Move your jumper shunts so they a...

Страница 27: ...it back and forth as you lift How to Insert the Modem into the Computer NOTE Before installing your modem write its serial number here SERIAL NUMBER________________ You ll find the serial number underneath the bar code on the white sticker on the modem and on the outside of the box the modem came in If you call our customer support department a customer support representative will ask you for the ...

Страница 28: ... helpful when you plug them back in later CAUTION To avoid risk of electric shock make sure your computer and all peripheral devices are turned off and unplugged from electrical outlets 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 ...

Страница 29: ...t later to screw the modem into place 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 The following diagram shows horizontally aligned expansion slots Some computers have vertically aligned slots The instructions apply to both styles You need to apply a little pressure to seat the modem properly ...

Страница 30: ...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 The modem will be damaged if you use a digital phone line 9 Plug one end of the phone cord included with the modem into the TELCO jack at the rear of the modem Plug the other end of the cable into...

Страница 31: ...rs not included into the SPEAKER jack on the modem 13 Plug the power cords cables and peripherals back into the computer and turn on the computer Installing the Modem Drivers NOTE If you wrote 950b on page 4 of this User s Guide go to Installing Modem Drivers with Windows 95 Version 950b on page 31 Otherwise follow these instructions Installing Modem Drivers with Windows 95 Versions 950 and 950a 1...

Страница 32: ...screen does not appear go to the section titled If Plug and Play Does Not Detect Your Modem on page 83 2 When you see this screen insert the Connections CD into your CD ROM drive and type D to replace the A If your CD ROM drive has a different letter name type that letter instead of D Click OK Windows will load the modem s drivers ...

Страница 33: ...s 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 point to Settings Then click Control Panel 4 Double click the Modems icon circled in the screen image below ...

Страница 34: ...e Plug and Play installation was unsuccessful Please refer to the If Plug and Play Does Not Detect Your Modem section on page 83 6 Next click the Diagnostics tab at the top of the Modems Properties screen Write down the COM setting for your modem below Your screen may show a different setting than that shown in the following screen You will need to know this setting when you install fax data commu...

Страница 35: ...e Connections program group and register your modem online Turn to Software Installation page 47 for more information Installing Modem Drivers with Windows 95 Version 950b 1 When Windows restarts it should detect the modem see screen below Insert the Connections CD and click Next ...

Страница 36: ...ar go to If Plug and Play Does Not Detect Your Modem on page 83 2 When you see the following screen click Finish 3 Now you should verify that the modem installation was a success When your desktop returns click the Windows Start button and point to Settings Then click Control Panel ...

Страница 37: ...ALLATION WITH WINDOWS 95 33 4 Double click the Modems icon circled in the screen image below 5 In the Modems Properties screen you should see a description of your modem This means the installation was a success Click OK ...

Страница 38: ...ck the Diagnostics tab at the top of the Modems Properties screen Write down the COM setting for your modem below Your screen may show a different setting than that shown in the following screen You will need to know this setting when you install fax data communications software Click OK COM Port _______ You are now ready to install the Connections program group and register your modem online Turn...

Страница 39: ...is not included See next column for more details NOTE Complete the instructions in the section Before You Begin Windows 95 Users on page 3 before continuing with the following instructions Determining Which Serial Cable to Buy Before you can begin installation you need to purchase an RS 232 serial modem cable NOT a null modem cable This section will help you to determine which serial modem cable t...

Страница 40: ...ch the enlarged portions of the diagrams If you cannot locate the proper connector refer to your computer s manual 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 ...

Страница 41: ... of your computer look for labels marked COM MODEM RS 232 or SERIAL DO NOT select AUX GAME LPT or PARALLEL 3 Plug one end of the phone cord into the TELCO jack and the other end into a phone wall jack CAUTION 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...

Страница 42: ...ame time if they share the same telephone line 4 Plug the power adapter that came with the modem into a standard 110 volt wall outlet and insert its plug into the power jack on the modem NOTE If you use a different power adapter or plug the adapter into a higher voltage outlet you may damage the modem 5 Turn on your modem The power switch is next to the modem s phone cord jacks 6 Turn on your comp...

Страница 43: ... wrote 950 or 950a follow the instructions that begin below Installing Modem Drivers with Windows 95 Versions 950 and 950a 1 When Windows 95 restarts it should detect the modem If it does you will see the following screen Click Driver from disk provided by hardware manufacturer Then click OK NOTE If this screen does not appear go to the section titled If Plug and Play Does Not Detect Your Modem on...

Страница 44: ...If your CD ROM drive has a different letter name type that letter instead of D Click OK Windows will load the modem s drivers 3 Once Windows 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 point to Settings Then click Control Panel ...

Страница 45: ...MODEM INSTALLATION WITH WINDOWS 95 41 4 Double click the Modems icon circled in the screen image below 5 In the Modems Properties screen you should see your modem listed This means the installation was a success ...

Страница 46: ...our modem below Your screen may show a different setting than that shown in the following screen You will need to know this setting when you install fax data communications software Click OK COM Port _______ You are now ready to install the Connections program group and register your modem online Turn to Software Installation page 47 for more information ...

Страница 47: ...indows 95 Version 950b 1 When Windows restarts it should detect the modem Insert the Connections CD and click Next NOTE If this screen does not appear go to the section titled If Plug and Play Does Not Detect Your Modem on page 83 2 When you see the following screen click Finish ...

Страница 48: ... 95 44 3 Now you should verify that the modem installation was a success When your desktop returns click the Windows Start button and point to Settings Then click Control Panel 4 Double click the Modems icon circled in the screen image below ...

Страница 49: ...nd Play installation was unsuccessful Please refer to the If Plug and Play Does Not Detect Your Modem section on page 83 6 Next click the Diagnostics tab at the top of the Modems Properties screen Write down the COM setting for your modem below Your screen may show a different setting than that shown in the following screen You will need to know this setting when you install your communications so...

Страница 50: ...EXTERNAL MODEM INSTALLATION WITH WINDOWS 95 46 You are now ready to install the Connections program group and register your modem online Turn to Software Installation page 47 for more information ...

Страница 51: ...ram group and testing your modem by registering online Follow this section s instructions to start the Wizard and then follow the Wizard s on screen instructions NOTE The following instructions apply to Windows 3 x and Windows 95 users However only Windows 95 screens are shown Running the Setup Wizard 1 From the Windows 95 desktop click the Start button and then click Run ...

Страница 52: ... the Connections CD at any time by following these steps 1 Insert the Connections CD into your CD ROM drive 2 Click Start point to Programs point to U S Robotics Connections and then click Connections Installing the RapidComm Voice Fax Data Voice Software NOTE If you have an older version of RapidComm Voice installed on your system uninstall it before continuing To start the uninstall Windows 3 x ...

Страница 53: ... Setup Wizard does not install RapidComm Voice Follow these instructions to install RapidComm Voice 1 Start the Connections CD follow the instructions in the section Using Connections on page 48 2 On the main Connections menu click the Business Productivity button 3 Click the RapidComm Voice button 4 Follow the on screen instructions to finish the installation The CD also contains an electronic us...

Страница 54: ... 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 34 KEY POINT Refer to your software manual for the program s installation instructions The software s installation program will ask you questionsaboutthe modemyouareusing Initialization String For hardware flow control a fixed seria...

Страница 55: ...ss ENTER Follow the on screen instructions to access the COM port settings panel In this panel you should find the UART chip used Match the UART type listed in MSD with the serial rate listed in the chart below Select this serial rate sometimes called the port rate in any communications software you use Select this If this is your UART serial rate 16550 115 2 or 57 6 kbps 16450 38 4 kbps 8250 19 2...

Страница 56: ... Why Modem Station Modem commands can be confusing and difficult to memorize Communications software often requires technical information about your modem You may want to tweak your modem for optimum performance Installing Modem Station If you did not install Modem Station when you first installed the Connections CD please follow these instructions 1 Insert the Connections CD into your CD ROM driv...

Страница 57: ...o 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 9 When you see this screen click Next to accept the default directory or click Browse to change directories ...

Страница 58: ...fault program folder You can place Modem Station in an existing folder by selecting one from the list 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 ...

Страница 59: ...access to the following options DETECT NEW MODEMS This option detects U S 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 TERMINAL Terminal allows you to send commands directly to your modem and displays the res...

Страница 60: ...m s performance We will discuss Modem Configurator s options in more detail in later sections ABOUT The About option provides copyright and version information CONTACT SUPPORT This option details how to get in touch with 3Com 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 ...

Страница 61: ...PC You can scan a specific port s by selecting the checkbox for that port 2 Click Scan to have Modem Station check for installed modems This may take a few moments 3 When the scan finishes you will see the following display Your display may differ depending on the type and number of modems installed If your modem is installed and configured correctly Modem Station will find the ...

Страница 62: ...n or contact the manufacturer of your system for further information If you look at the information for the port your modem is using you will see three buttons These allow you to access Terminal and Modem Configurator without going back to the main menu Extended Information provides detailed information about your modem previous connections firmware dates etc This next section details using the Te...

Страница 63: ...ll 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 To select another modem simply click on the arrow and select that modem s assigned port To the right of the port settings are the port speed settings Port speed is the speed at which your c...

Страница 64: ...et an outside line and whether the dialer should wait between dialing that digit and the rest of the number Once you provide this information simply enter the phone number as if you were dialing a telephone Click Dial Now to dial the number You can end a call by clicking Hang Up at the bottom of the screen When you are finished using Terminal click Exit to return to the screen you accessed it from...

Страница 65: ...OL SERIAL PORT RATE For information on using these settings please refer to the Glossary at the back of this manual Click Help for quick definitions of the terminology used in this screen In the upper left hand corner of the screen you will see the data control commands currently in use Once you have entered the Data Control settings click Save to Modem This stores the settings so that you do not ...

Страница 66: ...return to the Modem Configurator menu 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 Use the Connection Control screen to configure the following settings DATA TERMINAL READY DTR ERROR CORRECTION DATA COMP...

Страница 67: ...y signal from the PC causes the TR light to light up Click Help for quick definitions of terminology used in this screen 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 displa...

Страница 68: ...h 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 For details on using the commands in this screen refer to the Glossary or Technical Quick Reference sections of this manual Click 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...

Страница 69: ...he 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 Please refer to the main body of the manual and the Glossary for detailed information about the ter...

Страница 70: ...PERATION DIALING METHOD SPEAKER VOLUME STORED NUMBERS The Stored Numbers screen displays the 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 Position Zero has a special feature You can set you...

Страница 71: ...eady stored in Position 0 If you haven t changed the default typing ATDS0 will automatically dial the 3Com BBS Once you enter the numbers you wish to store click Save to Modem to store them Click 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 TIP Restore Defaults wil...

Страница 72: ...nded Information The Extended Information screen provides access to the following information about your modem ROM CHECKSUM PRODUCT ACTIVE PROFILE STORED PROFILE CONFIGURATION PROFILE LINK DIAGNOSTICS VxD CONFIGURATION DIAL SECURITY Winmodem users will have access to VxD information via these screens Courier users will have access to Dial Security information Click ROM Checksum to bring up the fol...

Страница 73: ...s or profiles Only one can be active at any time 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 followed by the current connection settings ...

Страница 74: ... see the last number dialed The next option displays the Stored Profile screen This screen shows the configuration stored in your modem s NVRAM special programmable memory Note that any stored phone numbers are displayed on this screen as well The next two screens contain information that our technical support representatives may need if you request support Click Configuration to bring up the firs...

Страница 75: ...OM Date displays the version date of the firmware 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 Supervisor and DSP rev or revisions are the equivalent of software version nu...

Страница 76: ...mission Trellis Code Nonlinear Encoding Shaping and Precoding all refer to methods of handling high speed data transmission The items followed by dB dB dBm and msec refer to variations in the modulation tones that actually carry the information The rest of the screen contains information about CRC errors Block Errors Blers resent data and other data This information is very important if you experi...

Страница 77: ...tions handled by hardware in our other modems If you are using a Winmodem the Extended Information menu will offer you the option of clicking on VxD to view information on the Winmodem driver Please refer to your Winmodem manual for detailed information on the Winmodem drivers Courier users will see a display of current Dialback Security settings Refer to your Courier documentation for instruction...

Страница 78: ...ur World Wide Web page http www 3Com com 56k NOTE Complete the instructions in the Software Installation chapter starting on page 47 before installing the Modem Update Wizard NOTE The following instructions apply to Windows 3 x and Windows 95 users However only Windows 95 screens are shown Installing the Wizard 1 Insert the Connections CD into your CD ROM drive 2 Click Start and point to Programs ...

Страница 79: ...lete the installation 8 When you see the screen below the setup is complete Click OK NOTE For more detailed instructions see our World Wide Web page http www 3Com com 56k Updating Your Modem 1 Click Start Point to Programs Then point to U S Robotics Modem Update Wizard Finally point to the Modem Update Wizard selection 2 Follow the on screen instructions to complete the update process ...

Страница 80: ...case AT or all lower case at WINDOWS 95 USERS Uninstall the modem from your computer In Device Manager determine what COM port and IRQ settings are free on your system Set the jumper shunts on your modem s jumper pins to these free settings using the diagrams on page 13 as a guide If no IRQ setting is available you may need to move a device off of an IRQ in order to free it for use by your modem M...

Страница 81: ...g your modem s phone cord into a digital phone line can damage the modem Call your phone company if you are unsure whether or not your phone line is digital The phone cord should be plugged into the TELCO jack on the modem and an analog wall phone jack The phone cord should not exceed 12 feet in length Use the phone cord included with your modem if possible Have your phone company make sure that t...

Страница 82: ...tring to permanently enable auto answer Try placing the call again The phone company routes calls differently each time To verify a valid phone connection enter the RapidComm Voice software s Terminal mode and type ATX3DT18479825092 and press ENTER the phone number is the 3Com BBS This string bypasses the dial tone allowing a connection if the modem is functioning properly Check http www 3com com ...

Страница 83: ...dem You can disable error control on your modem by typing AT M0 in terminal mode and pressing ENTER Now try placing the call to the remote modem again When finished reset your modem to enable the error control features In terminal mode type ATZ and press ENTER Note ATZ4 or AT F1 are often the best reset strings as they restore hardware flow control defaults Set your modem s word length parity and ...

Страница 84: ...placing the call again The phone company routes calls differently each time In terminal mode type AT F1 and press ENTER to load the optimum hardware flow control settings Lower the serial port rate in your communications software to 57 600 bps 38 400 bps or 19 200 bps Some software programs including AOL allow port settings of 14 400 28 800 and 33 600 These settings are invalid and should not be u...

Страница 85: ...compressed file The RapidComm Voice software s port settings may be incorrect If you are using an external modem it may not be turned on Download to an uncompressed area on your hard drive In your communications software change the modem initialization string to AT H3 I2 R2S7 90 Disable any TSR programs such as screen savers or virus scanners running in the background If you have software running ...

Страница 86: ...m 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 Voice software does not work properly at 115 2 kbps DIAGNOSIS The presence of disk compression software on your system hampers the RapidComm Voice software s...

Страница 87: ...rnal modems If not continue with the next step 2 Click Windows 95 Start point to Settings and click Control Panel Double click the System icon and then click the Device Manager tab on the System Properties screen Look for Other Devices or Unknown Devices in the list that appears If you do not see either of these options in the list continue with the next section to learn about our support options ...

Страница 88: ... terminal emulation Data Bits 8 Parity None Stop Bits 1 2 Put the software in Terminal mode 3 Type ATDS0 the last character is a zero and press ENTER NOTE ATDS0 the last character is a zero automatically dials 1 847 982 5092 the 3Com BBS If this is your first time connecting to our BBS you will be asked to enter your name create a password of your choice and to fill out a questionnaire The introdu...

Страница 89: ...dem Internet FTP Provides free library containing the same files as the BBS site FTP to ftp usr com Internet on Demand Provides automatic technical support through a library containing product information quick reference cards and installation help To obtain an index of available documents send a blank e mail to support usr com To have a document e mailed to you send the document s number as the s...

Страница 90: ...m Voice see the section title Software Installation on page 47 3 Enter RapidComm Voice s terminal mode by clicking the Terminal button 4 Type ATI7 and press ENTER 5 The information that appears will be useful to the technical support representative who attempts to troubleshoot your problem when you call Select Print from the File menu or leave the information on screen Hotline 847 982 5151 Hours 8...

Страница 91: ...the support representative determines that you need to return the modem you will receive an SRO Service Repair Order number You must have an SRO number before returning the modem to us 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 Incl...

Страница 92: ...gnals and wavelengths that can be transmitted over communications lines such as the sound of a voice over the phone line 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 specific task or set of tas...

Страница 93: ... 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 Auto dial is used to dial voice numbers See command Dn baud rate A term used to measure the speed of an analog transmission from one point to an...

Страница 94: ...ed as kilobits per second kbps buffer A temporary memory area used as 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 Most often the term refers to 8 bit units or characters One kilobyte KB is equal to 1 024 bytes or characters 640 KB is equal to 655 360 bytes or characters carrier The basic signal...

Страница 95: ...ssion to increase cps class 1 and 2 0 International standards used by fax application programs and faxmodems for sending 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 ...

Страница 96: ...ons or Circuit Terminating Equipment such as dial up modems that establish and control the data link via the telephone network default Any setting assumed at startup or reset by the computer s software and attached devices 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 establishin...

Страница 97: ...inal or Terminating Equipment A computer that generates or is the final destination of data duplex Indicates a communications channel capable of carrying signals in both directions See half duplex full duplex 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 ...

Страница 98: ...ly includes a frame number block size data error check codes and Start End indicators full duplex Signals can flow in both directions at the same time over one line In microcomputer communications may refer to the suppression of the online local echo 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 loca...

Страница 99: ...in ITU T Recommendation V 42 Like the MNP protocols LAPM uses cyclic redundancy checking CRC and retransmission of corrupted data ARQ to ensure data reliability local echo A modem feature that enables the modem to display keyboard commands and transmitted data on the screen See command En MNP Microcom Networking Protocol an error control protocol developed by Microcom Inc and now in the public dom...

Страница 100: ...mbers 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 online fall back fall forward A feature that allows high speed error control modems to monitor line quality and fall back to the next lower speed in a defined range if line quality diminishes As line conditions improve the modems s...

Страница 101: ...l in order to exchange data The format of the data readiness to receive or send error detection and error correction are some of the operations that may be defined in protocols RAM Random Access Memory Memory that is available for use when the modem is turned on but that clears of all information when the power is turned off The modem s RAM holds the current operational settings a flow control buf...

Страница 102: ...synchronous transmission terminal A device whose keyboard and display are used for sending and receiving data over a communications link Differs from a microcomputer or a mainframe in that it has little or no internal processing capabilities terminal mode Software mode that allows direct communication with the modem Also known as command mode throughput The amount of actual user data transmitted p...

Страница 103: ...V 22 An ITU T standard for modem communications at 1200 bps compatible with the Bell 212A standard observed in the U S and Canada V 22 bis An ITU T standard for modem communications at 2400 bps The standard includes an automatic link negotiation fallback to 1200 bps and compatibility with Bell 212A V 22 modems V 27 ter An ITU T standard for facsimile operations that specifies modulation at 4800 bp...

Страница 104: ...l back further as necessary and also fall forward switch back up when line conditions improve see online fall back fall forward V 34 An ITU T standard that currently allows data rates as high as 28 800 bps V 34 An enhancement to V 34 that enables data transfer rates as high as 33 600 bps V 42 An ITU T standard for modem communications that defines a two stage process of detection and negotiation f...

Страница 105: ...lligent 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 Ymodem G Similar to Ymodem 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 ...

Страница 106: ...device must accept 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 if requested The REN is used to determine the number of devices you may legally co...

Страница 107: ...ty responsible for compliance could void the user s authority to operate the equipment Industry Canada IC 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 applic...

Страница 108: ...ion 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 identification of the business or other entity or other individual sending the message and the ...

Страница 109: ...ular installation If this device does cause interference to radio or television reception which you can determine by monitoring reception when the modem is installed and when it is removed from the computer try to correct the problem with one or more of the following measures Re orient the receiving antenna for televisions with antenna reception only or cable input device Relocate the computer wit...

Страница 110: ...uipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means of a cer...

Страница 111: ...t in rural areas CAUTION Do NOT attempt to make such connections yourself Instead contact an electric inspection authority or electrician as appropriate NOTICE The Ringer Equivalence Number REN assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface The termination on an interface may consist of any combination of ...

Страница 112: ...riel 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 le dégradation du service dans certaines situations Les réparations de matériel homologué doivent être effectuées par un centre d entretien canadien autorisé désigné par le fournissuer La compagnie de télé...

Страница 113: ...r le réseau seulement si la somme des IES de tous les appareils n excède pas 5 L Indice d Equivalence de la Sonnerie IES est situé au revers du modem modems externes ou sur le circuit imprimé modems internes Centre de guarantie et de service après vente Keating Technologies 25 Royal Crest Court Suite 200 Markham ONT L3R 9X4 Limited Warranty U S Robotics Access Corp a subsidiary of 3Com Corporation...

Страница 114: ...ITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE U S ROBOTICS SHALL IN NO EVENT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL PUNITIVE OR CONSEQUENTIAL DAMAGES OF ANY KIND OR CHARACTER INCLUDING WITHOUT LIMITATION LOSS OF REVENUE OR PROFITS FAILURE TO REALIZE SAVINGS O...

Страница 115: ...vice Repair Order SRO number to help U S Robotics keep track of your limited warranty request Once you have received your SRO number take or send the product postage prepaid and insured to 3Com Attn RMA your SRO 6201 W Oakton East Dock Morton Grove IL 60053 Pack the modem in a strong corrugated cardboard box with plenty of packing material DO NOT send the modem back in its original box DO NOT send...

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