USRobotics 33600 Network Card User Manual
Contents
1. The Sportster Winmodem 33600 amp x2 56K s data compression feature can pack data down to a fraction of its original size It can also de compress data compressed by the remote modem V 42 bis MNP 5 data compression With Windows Sportster Winmodem 33600 amp x2 56K is designed to operate exclusively in the Windows environment with fully compliant Windows software It will not work in MS DOS or in an MS DOS shell under Windows WARNING THE MODEM WILL BE DAMAGED IF YOU USE A DIGITAL PHONE LINE Since some homes and most businesses have digital lines before plugging your Sportster Winmodem 33600 amp x2 56K into a jack you are unsure about ask the person in charge of the phone system if the line is digital Other Features Plug and Play Plug and Play allows a computer to configure the modem s settings automatically Your computer sets the optimal configuration for the modem and your software applications automatically adjust to that configuration Once your system sets the configuration it will use this configuration every time you turn on your machine In order to use this feature you must have either a Plug and Play BIOS or Windows 95 Sportster Winmodem 33600 amp x2 56K User s manual 3 Speakerphone Working with the Sound Card The modem fitted in your Pc is equipped with jack sockets for speakers and microphone on the rear panel as well as an internal connection that goes directly to the sound card if2. a The Intelligent Choice in ininrmatiqn Access Sportster Winmodem 33600 amp x2 56K User s Manual Depending on line conditions U S Robotics and the U S Robotics logo are 3Com registered trademarks IBM IBM PC PC XT and PC AT are International Business Machines Corporation trademarks Microcom Networking Protocol MNP is a Microcom Inc registered trademark 1997 Table of Contents Introduction 1 How a Modem Wotks c ccceccseeseeeeeeseeeeeaeeeeeeaes 1 How Does Your Sportster Winmodem 33600 amp x2 56K WOK Zee a gute Bert a Mae bed acted 2 Other Features cc cece cece cc cece se esse seeeeeeeesaeeeueaes 3 Package Content 0 ccccceeeceeeeeseeeeeeeeeaeaaeneeeeeeees 4 Installation 5 Sportster Winmodem 33600 amp x2 56K Installation 5 STEP 1 Insert the Modem Into the Computer 6 STEP 2 Run the Modem s Installation Program 8 STEP 3 Installing the Communications Software 11 Changing Country Setup under Windows 95 13 Using the Modem 15 Installation Test a eonia a 15 Factory Settings ccceceeeeeceeeeeeeeeeeeeeeaeaaeeees 16 Resetting the Modem to Factory Settings 17 Remarks on Using the Modem 44444 4 gt 18 Un Installing the Modem s 19 Troubleshooting 21 Problems and Solutions m nn 21 If You Are Still Having Problems 31 Voice Functions Overview of Voi
3. icon 3 From within the Properties dialogue box click the Change Country button Note A warning reminds you that selecting another country different from the one that actually matches your present location may cause the Sportster Winmodem PC Card to operate incorrectly Sportster Winmodem 33600 amp x2 56K User s manual 13 3 Click OK The Modem Change Country Setup dialogue box should appear Note The upper half of this window displays the current country selected The lower section displays a series of flags offering alternative setup options 4 Select the appropriate country flag and Click OK Click on Yes to Save Note The Sportster Winmodem PC Card will be reconfigured automatically To revert back to the original country specification you must repeat the above procedure 14 Sportster Winmodem 33600 amp x2 56K User s manual Using the Modem Installation Test Follow this procedure to check that the modem works correctly 1 2 Turn the computer on Load and run the communications software Check the software installation manual for further information Do not be alarmed when a DOS based hardware diagnostic tool does not detect the presence of your new modem The new architecture of Sportster Winmodem 33600 amp x2 56K is unknown to many comtest programs and DOS based tools Inthe software set the serial port rate to 9 600 bits per seco
4. 21 10 Sets the length in 10 millisecond units of breaks sent from the modem to the compu ter applies to ARQ mode only 22 17 Stores the ASCII decimal code for the XON character Valid range is 0 127 50 Sportster Winmodem 33600 amp x2 56K User s manual 23 19 Stores the ASCII decimal code for the XOFF character Valid range is 0 127 S24 0 Reserved Reg Default Function S25 5 Sets the duration in hundredths of a second that DTR must be dropped so that the modem doesn t interpret a random glitch as a DTR loss Most users will want to use the default this register is useful for setting compatibility with older systems running under older operating software S26 0 Reserved S27 1 Bit mapped register To set the register see the instructions for S13 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 1 2 Enables unencoded non trellis coded modulation in V 32 mode rarely used part of ITU T Recommendation V 32 2 4 Disables V 32 modulation 8 Disables 2100 Hz answer tone to allow two V 42 modems to connect more quickly 16 See next page 32 See next page 64 Reserved 128 This setting disables the codes and displays the 9600 code instead The actual rate of the call can be viewed on the ATI6 screen Used for unusual NO Of Sportster Winm
5. and stop bits as the remote modem Peripherals drivers for hardware and software may be interfering with the transmission Try disabling the extensions before you run your communications software The flow control settings for your software and modem may be different Check to see that your software and the modem are set for the same kind of flow control either hardware or software hardware is recommended Some communications programs also require that you disable the kind of flow control you are not using Load the template that enables hardware flow control as well as other optimal settings Go into terminal mode your communications software should let you switch to terminal mode and 1 Type AT amp F1 2 And then press the ENTER key If the settings are the same the problem may be with the phone line Sportster Winmodem 33600 amp x2 56K User s manual 29 If your communi cations software is reporting many Cyclic Redundancy Check CRC errors and low Characters Per Second CPS e Place the call again You may have had a bad phone line or a bad connection The telephone company routes all calls even local calls differently each time you call e Load the template that enables hardware flow control as well as other optimal settings Go into terminal mode your communications software should let you switch to terminal mode and 1 Type AT amp F1 2 And then press the ENTER key e Try the Zm
6. at 2400 bits s 8 bit characters with a start and stop bit for a total of 10 bits per character are transmitted at an approximate rate of 240 characters per second cps Some protocols such as the error correction protocols in the modem use advanced techniques requiring longer transmission frames and data compression to increase the number of characters per second 62 Sportster Winmodem 33600 amp x2 56K User s manual Data mode Mode in which the fax modem can send and receive data files A standard modem without facsimile capabilities is always in data mode DCE Data Carrier Equipment Termination equipment of the data circuit In this manual this term applies to modems that establish and control the data link on the telephone network Digital signals Discreet and uniform signals In this manual the term refers to bits 0 and 1 DTE Data Terminal Equipment Data processing terminal equipment Generally a computer or terminal generates data or is the final destination of data Duplex Defines a communications channel capable of transmitting signals in both directions half duplex or full duplex Full duplex Simultaneous flow of signals in two directions In micro computer communications full duplex can refer to suppressing the local echo of transmitted characters Half Duplex Signal flow in two directions but only in one at a given time In micro computer communications half duplex can refer to enabling
7. disk in files and be converted and processed by specific applications On the other hand this digitized data can be re transmitted to the voice modem which reconstructs the original sounds from it If most messages transit over the telephone line the modem user can use according to the available equipment e a telephone set a sound card connected to a microphone and speaker to record and listen to messages the built in soeakerphone feature allowing hand free communication Please refer to the nstallation section page 5 for instructions on how to set up your modem for voice functions These capabilities coupled with the power of specific computer applications can be used for the PC to simulate either an answering machine voice mail or any other communications application that processes voice data Sportster Winmodem 33600 amp x2 56K User s manual 33 Speakerphone The full duplex SpeakerPhone feature of the modem is accessible by connecting an external speaker to the jack on modem backpanel and a microphone NOTE Make sure that the microphone and speaker are at least 30 centimeters apart and not directly facing each other so as to avoid acoustical coupling between the speaker output and microphone input Implementing Voice Functions Voice Applications To use the voice functions of the modem you must use an application designed for this type of modem The answering machine voice mail different
8. failed Check if there are any time share applications or programs working in parallel to the communications application The quality of the telephone line is too low to withstand high speed data transfer decrease the modem s transmission speed International connections cannot be made Because of the length of the number dialed and the differences in telephone networks it may be the case that some digits do not get interpreted during the dialing process Insert commas between parts of the dialing number in order to create pauses For example if you are calling 123456789 insert commas and dial 1 23 456789 instead Calls to foreign countries terminate with a NO CARRIER message Increase the amount of time to wait for a carrier signal In terminal mode type ATS7 60 and press the Enter key The range of acceptable values is country dependent Sportster Winmodem 33600 amp x2 56K User s manual Intercontinental connections are sometimes interrupted If the telephone line s quality is low it is best to reduce the transmission speed in order to insure that the connection remains stable During file transfer the modem sends back many transmission errors or a very low transfer rate The telephone line is bad select a lower transmission speed Re initialize the modem to the factory settings Change the transfer protocol During transmission of a fax errors alt
9. if you d like You can fax a graphic to an overseas supplier update files on your computer at work from your computer at home surf the Internet he list goes on Quickly The Sportster 33600 Winmodem Voice modem installed in your PC can transmit and receive data as well as transmit and receive facsimile documents as follows a Utilizing new X2 technology the modem can receive up to 56Kbits per second to enable fast download of web pages and images Contact your local Internet provider to ascertain the availabilty of this service The actual speed achieved will depend on your location relative to your ISP and in particuliar the method used by your local telephone company to provide normal telephone service e Conforming to international standards the modem will transmit and receive data at up to 33 6 Kbit s dependant on the corresponding modem s capability O Utilizing the preloaded software in your machine the modem will transmit and receive facsimile documents at speeds up to 14 4 Kbit s using ITU standard V17 protocol e YOUR SPORTSTER WINMODEM 33600 amp X2 56K WILL NOT OPERATE UNDER THE MS DOS ENVIRONMENT IT RELIES ON THE WINDOWS OPERATING SYSTEM TO FUNCTION Depending on line conditions 2 Sportster Winmodem 33600 amp x2 56K User s manual Accurately Sportster Winmodem 33600 amp x2 56K can automatically detect and correct errors during a transmission V 42 MNP 2 4 error control Efficiently
10. of the local echo that causes the modem or the software to send a copy of transmitted data to the screen of the transmitting computer Error correction Various techniques that check the reliability of the characters or data blocks The V 42 and MNP2 2 10 error correction protocols use error detection using a CRC type control code and re transmit erroneous frames ARQ Sportster Winmodem 33600 amp x2 56K User s manual 63 Fallback Rate adjustment A function that lets rapid modems with error correction control the line quality and fall back to a lower speed if it becomes degraded Modems go back to a higher speed if the line quality improves Fax mode Mode in which the fax modem can transmit and receive facsimiles Flow control A method that compensates for differences in the data flow coming in to and going out from a modem or other device See RTS CTS and XON XOFF IRQ Interrupt Request In a computer IRQs are used to temporarily interrupt current processing when an event requires immediate attention such as for example the arrival of data at the serial port LAPM Link Access Procedure for Modems Error correction protocol incorporated in the ITU T V 42 recommendation Just like the MNP protocols LAPM uses cyclical redundancy check CRC and automatic re transmission of data ARQ to guarantee data reliability Local Echo A function of the modem used to display keyboard command and transmitted data
11. 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 a remote modem printer application is losing characters 14 0 Bit mapped register Allowable non default value is 1 Bit Value Result 0 1 The modem hangs up on receipt of returns to command mode and sends the NO CARRIER result code 1 7 Reserved Sportster Winmodem 33600 amp x2 56K User s manual 49 Reg Default Function 15 0 Bit mapped register To set the register see the instructions for 13 Bit Value Result 0 zero 1 Disable ARQ MNP for V 22 1 2 Disable ARQ MNP for 22bis 2 4 Disable ARQ MNP for V 32 V 32bis V 32terbo 8 Disable MNP handshake 16 Disable MNP level 4 32 Disable MNP level 3 64 MNP incompatibility Disable V 42 detection phase 00 NU Nour w rep S16 0 it mapped test register Allowable value is it Value Result Reserved 2 Touch tone dialing test 2 7 Reserved S17 0 Reserved 18 0 Test timer for amp Tn loopback testing Sets the time in seconds of testing before the modem automatically times out and terminates the test When set to 0 the timer is disabled 19 0 Sets the duration in minutes for the Inac tivity Timer The timer activates when there is no data activity on the phone line at timeout the modem hangs up S19 0 disables the timer 20 0 Reserved
12. to lightning and water damage THIS LIMITED WARRANTY DOES NOT GUARANTEE YOU UNINTERRUPTED SERVICE REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS LIMITED WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED 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 OR OTHER BENEFITS LOSS OF DATA OR USE DAMAGE TO EQUIPMENT AND CLAIMS AGAINST THE PURCHASER BY ANY THIRD PERSON EVEN IF U S ROBOTICS HAS BEEN Sportster Winmodem 33600 amp x2 56K User s manual 69 ADVISED OF THE POSSIBILITY OF SUCH DAMAGES This limited warranty gives you specific legal rights You may have others which vary from nation to nation Some nations do not allow limitations on duration of an implied warranty or the exclusion or limitation of incidental or consequential damages so the above exclusion or limitation may not apply to you 70 Sportster Winmodem 33600 amp x2 56K User s manual lh Toe nig Chi ia krmation Hoses 1 024 1388 00
13. 00 amp x2 56K comes with an installation diskette that contains an installation program that will help your computer finish installing the modem This program will also copy modem programs from the diskette onto your computer s hard drive The installation program runs a little differently for Windows 95 than it does for Windows 3 1 and 3 11 In this section follow the steps for the Windows operating system you have Skip the other set of Windows instructions Running the Installation Program on a Windows 3 1 or 3 11 System After inserting the Sportster Winmodem 33600 amp x2 56K by following the steps previously described in the STEP 1 Insert the Modem Into the Computer section page 6 1 Insert the installation diskette 2 Run the a install program From Program Manager pull down the File menu and select Run Enter A INSTALL EXE if that is the drive you are running the installation diskette from 3 Follow the screen commands to complete the installation program NOTE At one point you ll be asked to select a COM port for the modem Choose any port that s labeled Free Do not choose a port labeled In use If you choose an In use port the device that has been using that port will not work Write the COM port on the first page of this manual You may need to know the number later When you ve finished the installation program Windows will restart 8 Sportster Winmodem 33600 amp x2 56K User s manual At t
14. 2400 9600 14400 or 28800 Xmodem The first of a family of error correction software protocols used to transfer files between modems These protocols are in the public domain and are available on many servers Ymodem and Zmodem are later protocols 66 Sportster Winmodem 33600 amp x2 56K User s manual XON XOFF Standard ASCII control characters used to tell an intelligent device to stop or resume data transmission In most systems typing lt Ctrl gt S sends the XOFF character which tells the remote device to stop transmitting Some equipment including your modem interpret lt Ctrl gt Q as XON which tells the remote device to resume transmission others interpret touching any key after lt Ctrl gt S as an XON Sportster Winmodem 33600 amp x2 56K User s manual 67 68 Sportster Winmodem 33600 amp x2 56K User s manual Limited Warranty U S Robotics warrants to the original end user purchaser that this product will be free from defects in materials and workmanship for a period of five years from the date of purchase During the limited warranty period and upon proof of purchase the product will be repaired or replaced with the same or a similar model which may be a refurbished model at U S Robotics option without charge for either parts or labor This limited warranty shall not apply if the product is modified tampered with misused or subjected to abnormal working conditions including but not limited
15. and set Flow control Telephone interface Voice coding Tone detection Call differentiation x2 56K Specifications Data ITU T V 34 V FC ITU T V 32 bis V 23 V 22 bis V 22 V 21 and Bell 212A 103 Fax Send and receive Group Ill Fax Class 1 Class 2 0 ITU T V 17 V 29 V 27 ter Data 33 6K 31 2K V 34 28 8K 26 4K 24K 21 6K 19 2K 16 8K 14 4K 12K 9600 7200 4800 2400 1200 1200 75 75 1200 300 bps Fax 14 4K 12K 9600 7200 4800 2400 ITU T V 42 MNP 2 4 ITU T V 42 bis MNP level 5 Full Half duplex on 2 wire telephone line Serial binary asynchronous Compatible with the AT command set Fax mode EIA 578 Class 1 EIA 592 Class 2 0 XON XOFF RTS CTS RJ11 IMA ADPCM DTMF Toggle between voice fax and data according to the country Sportster Winmodem 33600 amp x2 56K User s manual 57 Silence detect Adjustable level and duration Dialing Pulse pulses 0 9 tone DTMF 0 9 Call status Dial tone busy tone voice detect Configuration storage Two modem configurations and four telephone numbers Transmission level Country specific Reception sensitivity Country specific Operating temperature From 0 to 50 C Storage temperature From 40 to 70 C Transportation temperature From 40 to 70 C Operating humidity From 20 to 80 without condensation Storage humidity From 5 to 90 without condensation Operating altitude 3000 meters Electrical power Before making connecti
16. ce Functions n Speakerphone ccceceeeeeeeeeeeeeeaeaaeeeeeeeeees Implementing Voice Functions Voice Applications cc ceeeeeeeseeeeeeeeaeeees Application Settings nn Appendix A Technical Reference Main AT commandsS u uu2022 nenne sees eens Appendix B Technical Specifications Sportster Winmodem 33600 amp x2 56K SP CHICALIONS sies retre nnr Eea REA REE EE RAD Safety nk aeo Eaa Ea ES Glossary Limited Warranty Introduction How a Modem Works A modem is a computer peripheral that allows you to communicate with other computers via telephone lines Because ordinary telephone lines cannot carry digital information a modem changes the digital data from your computer into analog signals which can be transmitted much like voice signals In a similar manner the modem receiving the call then changes the analog signals back into digital data that the receiving computer can understand This shift of digital data into analog signals and back again allows two computers to speak with one another Called modulation demodulation this transformation of data and signals is how the modem received its name Sportster Winmodem 33600 amp x2 56K User s manual 1 How Does Your Sportster Winmodem 33600 amp x2 56K Work With your Sportster Winmodem 33600 amp x2 56K you can move beyond the boundaries of your computer around the world
17. e of acceptable values is country dependert 13 Stores the ASCII code for the Carriage Return character Valid range is 0 127 10 Stores the ASCII decimal code for the Line Feed character Valid range is 0 127 8 Stores the ASCII decimal code for the Back space character A value of 128255 disables the Backspace key s delete function Sportster Winmodem 33600 amp x2 56K User s manual S6 S7 S8 S9 S10 60 Sets the number of seconds the modem waits before dialing If Xn is set to X2 or X4 the modem ignores this register and dials as soon as it detects a dial tone fast dials The range of acceptable values is country dependent Sets the number of seconds the modem waits for a carrier May be set for much longer duration if for example the modem is originating an international connection Sets the duration in seconds for the pause option in the Dial command Sets the required duration in tenths of a second of the remote modem s carrier sig nal Sets the duration in tenths of a second that the modem waits after loss of carrier before hanging up This guard time allows the modem to distinguish between a line hit or other disturbances that momentarily break the connection from a true disconnect hang up by the remote modem While we don t recommend connecting the modem to a line with call waiting if you have it you may wish to adjust this setting upward to prevent the modem from mis
18. em 33600 amp x2 56K User s manual 27 If both modems exchange carrier signals but fail to establish a data communications link cont When the call is finished reset the modem by 1 Typing ATZ 2 And then pressing the ENTER key Make sure you ve set your software to the same data format word length parity and number of stop bits required by the modem you re trying to connect with and if your modem is dialing out that your software is set to a baud rate equal to or higher than that of the other modem NOTE Using a data format different from the other modem s can alter data If you cannot call to find out the other modem s data format trying the following data formats in this order 8 None 1 7 Even 1 7 Odd 1 and 7 Mark 1 Make sure your modem s connection rate isn t locked The default of amp No the last character is zero the variable connection rate lets the two modems negotiate the best possible connection rate See annin the Commands chapter Make sure the modem is in the right mode for what you re trying to do e Data mode for a data call e Fax mode for a fax call 28 Sportster Winmodem 33600 amp x2 56K User s manual During Data Transfers If your screen displays random or garbage characters Make sure your communications port is set to connect at the maximum possible connect rate Set your software to the same word length parity
19. er its legibility or cut off the connection Check the modem s and the software s flow control Remove all Terminate and stay resident programs TSRs that could be active during the connection If the problem occurs during the trans mission of a fax from Windows or OS 2 check that the communications driver that you are using is the one corresponding to the environment that you use Windows OS 2 or the one supplied specifically with the communications software You get a message telling you that the modem is conflicting with another device With a Windows 3 1 or 3 11 system Click on the Configurator icon in the Sportster Winmodem 33600 amp x2 56K program group to get access to changing the setting s Try different I O addresses and IRQ lines If that does not work you may need to free up an I O address or IRQ line With a Windows 95 system Click on the Start button Scroll to Help Click on the Contents tab Select Troubleshooting Select If you have a hardware conflict Follow the screen commands ORSON A Be Sportster Winmodem 33600 amp x2 56K User s manual 25 Before the Modems Connect If your modem does not respond to AT commands Make sure you are in terminal mode Your communications software should let you switch to terminal mode Check that the modem is set to display result codes and that the result codes are displayed as words Try going into term
20. fitted It is recommended that for higher quality recording and playing of messages and playing of audio files your speakers and microphones are connected on the sound card and not directly to the jack sockets on the modem This will enable the sound output and record input to be regulated via the mixer control panel In the event that you do not have a sound card fitted powered speakers and a microphone can be connected directly to the sockets on the modem Personal Voice Mail Using this feature you can send voice greetings and record voice messages like a standard answering machine with several voice mailboxes on one system You can even access your voice messages remotely Your modem will autodetect incoming fax voice data calls and provides fax on demand services you can tailor to your needs Package Contents e Sportster Winmodem 33600 amp x2 56K e RJ11 phone cord User s guide e Voice mail fax and data communications software for Windows 4 Sportster Winmodem 33600 amp x2 56K User s manual Installation Sportster Winmodem 33600 amp x2 56K Installation NOTE Turn the computer and any connected peripheral devices off This chapter will walk you through the installation of your Sportster Winmodem 33600 amp x2 56K There are two parts to the installation Hardware the modem and software The modem must be installed before the software Plug and Play Sportster Winmodem 33600 am
21. his point you ll either OR e Be able to find the Sportster Winmodem 33600 amp x2 56K group in the Program Manager window If you can find this group you re ready to install the communications software e If the computer cannot configure the modem automatically you will get a Configuration dialog box You will have to choose an available I O address and an available IRQ NOTE Do not check the Let Plug amp Play configure option e For the I O address Choose any on the list e For the IRQ The COM port IRQ combinations shown here work with most computer set ups If you choose Then try this COM port this IRQ 1 4 2 3 3 5 7or9 4 5 7or9 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 If the configuration you ve chosen works you should be able to find the Sportster Winmodem 33600 amp x2 56K group in the Program Manager window If you can find this group you re ready to install the communications software following the directions page 11 Sportster Winmodem 33600 amp x2 56K User s manual 9 If the configuration you ve chosen does not work you chose an I O address and or an IRQ that is not available If you chose an unavailable I O address you will get an error message Choose another I O address in the Configuration dialog box that appears If you chose an unavailable IRQ you ll find ou
22. iage Return Escapes to online command mode Displays a list of ampersand amp commands Aborts off hook dial answer operation and hangs up Manual Answer goes off hook in answer mode Pressing any key aborts the operation Bn U S ITU T answer sequence Dn DL DSn D BO B1 ITU T answer sequence U S answer tone Dials the specified phone number Includes any of the following P T Pulse rotary dial Tone dial Comma Two second pause linked to S 8 register Semicolon Return to Command mode after dialing Dials the letters that follow in an alphabetical phone number Delays for 125 msec before proceeding with dial string Wait for second dial tone X3 or higher linked to S6 register Dials waits for quiet answer and continues X3 or higher Originates call using answer reverse frequencies Dials the last dialed number Dials the phone number string stored in NVRAM at position n n 03 Phone numbers are stored with the amp Zn s command Displays a list of Dial commands En Sets local echo 38 Sportster Winmodem 33600 amp x2 56K User s manual EO Echo OFF E1 Modem displays keyboard commands Sportster Winmodem 33600 amp x2 56K User s manual 39 Fn Hn Ln Sets online local echo of transmitted data ON OFF FO Local echo ON Modem sends a copy of data it sends to the remote system to your screen F1 Local echo OFF Receiving system may send a remote ech
23. iating Data Fax Voice calls and recognition of remote telephone tones DTMF are the main functions used by voice applications Application Settings In the section corresponding to the modem settings in the voice application choose the exact modem type in the list of modems displayed If the modem is not included in the list you can 1 Try a modem containing words such as Generic or voice modem 2 Contact the software manufacturer to ask for advice on choosing the driver be sure to mention that your voice modem recognizes AT V type commands 3 Contact your modem reseller 34 Sportster Winmodem 33600 amp x2 56K User s manual In the following paragraphs you will find some indications pertaining to the settings of voice applications in order to use the modem Input Output Source Selection Set the recording or playback sources as the devices from which you are going to record the local message and listen to the received messages External powered speakers microphone headset or sound card Recording and Playback Quality The greater the sampling rate the better the quality of the message is This also means also that the message file size on the disk will be greater For example 10 seconds recorded on 2 bits equals about 18 kbytes whereas a message with twice the quality 4 bits will require for 10 seconds about 36 kbytes Level and Length of Silence Aside from the various adjustment
24. inal mode and 1 Typing ATE1v1Q0 the last character is zero 2 And then pressing the ENTER key See Qn and Vnin the Commands chapter Check that your modem s Data Terminal Ready DTR signaling is set correctly See amp Dnin the Commands chapter You may need to review the manual that came with your communication software to see what DTR operation your software requires If you are not using the communication software that came with the Sportster Winmodem 33600 amp x2 56K you may need to change the DTR setting Check the manual that came with the software If your modem does not answer the phone or does not go off hook to answer the phone Review the manual that came with your communication software to see what Data Terminal Ready DTR operations are required See amp Dnin the Commands chapter of this manual too If you are not using the communication software that came with the modem you may need to change the DTR setting Check the manual that came with the software Try going into terminal mode your communications software should let you switch to terminal mode and 1 Typing ATX3DT as the dial string 2 And then pressing the ENTER key For answering Make sure your software has auto answer enabled 26 Sportster Winmodem 33600 amp x2 56K User s manual If your PC reacts as though you are online but no call has been initiated or received Check that modem s Carrie
25. interpreting the second call signal as a disconnect by the remote modem A better alternative is to ask your phone company how to temporarily disable call waiting usually 70W For example ATDT 70W phonenumber NOTE If you set S10 255 the modem will not hang up when carrier is lost Dropping DTR hangs up the modem This possibility is country dependent S11 Sets the duration and spacing in milli seconds for tone dialing The range of acceptable values is country dependent Sportster Winmodem 33600 amp x2 56K User s manual 47 12 50 Sets the duration in fiftieths of a second of the guard time for the escape code sequence 48 Sportster Winmodem 33600 amp x2 56K User s manual Reg Default Function 13 0 Bit mapped register Select the bit s you want on and set S13 to the total of the val ues in the Value column For example ATS13 17 enables bit 0 value is 1 and bit 4 value is 16 Bit Value 0 1 1 2 2 4 3 8 4 16 5 32 6 64 7 128 Result Reset when DTR drops Reset non MNP transmit buffer from 1 5K to 128 bytes 4 Set backspace key to delete On DTR signal auto dial the number stored in NVRAM at position 0 At power on reset Auto Dial the number stored in NVRAM at position 0 Reserved Reserved Disconnect on escape code The 128 byte option lets remote users with slower modems keep data you re sending from scrolling off their screens When remote users
26. is initialization string AT amp F1 2 And then pressing the ENTER key e If you re asked for a serial port baud rate set the rate for the highest option 115 200 bps is a good choice for most programs If you experience trouble later unusually slow transmissions errors in transmissions etc reduce the rate Do not choose 28 800 bps 14 400 bps or 12 000 bps however Sportster Winmodem 33600 amp x2 56K will not work properly at these serial port rates e If you have to specify the COM port being used refer to the number you wrote on the first page of this manual If you are asked to specify a flow control setting choose RTS CTS for hardware flow control highly recommended or XON XOFF the amp F2 command for software flow control Disable the type of flow control you are not using Sportster Winmodem 33600 amp x2 56K User s manual 11 12 Sportster Winmodem 33600 amp x2 56K User s manual Changing Country Setup under Windows 95 When travelling with the Sportster Winmodem PC Card you may need to change the country setup to attain correct operation using other telephone networks These networks may use different technical parameters such as Ring pattern and Voltage level Using Windows 95 follow the procedure below for changing to the required country setup 1 Click Start Settings Control Panel from the main Windows 95 task bar 2 Select double click the Sportster Winmodem PC Card
27. nd bps for a V 22 bis modem 19 200 bps for a V 32 bis modem 57 600 bps for a V 34 model 57 600 bps 115 200 bps if available for a V 34 model in some software this is referred to as the baud rate The modem will automatically detect this setting when you send a command to it Specify the serial communications port used by the modem COM1 COM2 or other Set the data format to an 8 bit length with no parity or to a 7 bit length with even or odd parity either one will do and 1 stop bit Sportster Winmodem 33600 amp x2 56K User s manual 15 6 Execute the function that authorizes sending AT commands to the modem in other words put the computer in terminal mode 7 Verify that the computer and the modem can communicate with each other by sending the following AT command you can type the command either with uppercase or lowercase letters but you must not combine the two different types of letters Press the Enter key carriage return indicated in the following example by the word Enter surrounded by brackets AT lt Enter gt If everything is OK the modem will respond with the following message OK If the command is not echoed back AT is not displayed on the screen it means that local echo is turned off In order to turn it on send the following command to the modem ATE1 lt Enter gt If on the contrary the screen displays double characters it means that local echo is t
28. nd some communications programs let you choose the modem in a menu list If you can t find your modem there you can enter these initialization strings above in the settings screen of the application Sportster Winmodem 33600 amp x2 56K User s manual 17 Remarks on Using the Modem Remember the Following Points When Using the Modem e The modem might not work with all modular telephone sets Specifically you must not use the modem with multi line telephone sets sets with indicator lights or line selection buttons e Some voice mail message systems use a specific tone to indicate that a voice message has been received The modem will not be able to dial as long as this signal is on the line Listen to the waiting messages in order to get the normal dial tone back so that the modem can dial e The modem has an automatic speed reduction function This means that it automatically reduces its data transmission speed in order to match the speed of the remote modem This also means that it may take the modem up to 30 seconds to establish communications with a slower modem e Acomma in the dialed number causes a pause during dialing You can insert multiple commas in the command line in order to obtain a longer pause e The modem must detect a carrier within a specific time interval otherwise it will display the message NO CARRIER or NO ANSWER You can increase this interval in seconds by going into the terminal m
29. ned in the software correspond to the settings of the remote modem Data compression could be used on one of the modems and not on the other Check the flow control If required reconfigure the modem to the factory settings Using a certain terminal emulation application the modem sends back many transmission errors Check the way the application initializes the modem AT amp F lt Enter gt This re initialization includes resetting the hardware flow control If you want to set software flow control on XON XOFF type the following command instead AT amp F amp K4 lt Enter gt Sportster Winmodem 33600 amp x2 56K User s manual 23 The modem connects itself correctly to the remote modem but the connection is interrupted during communications with the message NO CARRIER Connection problem with a 2400 bps modem Someone probably hung up from another extension The modem detected a call waiting signal on the line Contact the local tele communications agency to find out how to turn this signal off when you use the modem Try calling another modem to check if the problem is general or unique to one specific modem The telephone line is of low quality try communicating at a lower speed Some older modem models will not connect when the error correction protocol is on Turn this protocol off with the following command MISSING COMMAND High speed data transmission
30. o of data it receives Controls ON OFF hook HO Hangs up goes on hook H1 Goes off hook Displays the following information 10 Four digit product code l1 Results of ROM checksum 12 Results of RAM checksum I3 Product type 14 Current modem settings I5 Nonvolatile memory NVRAM settings I6 Link diagnostics I7 Product configuration 18 Returns the blacklisted phone numbers Controls speaker volume internals only LO Low L1 Low L2 Medium L3 High Operates speaker MO Speaker always OFF M1 Speaker ON until CONNECT M2 Speaker always ON M3 Speaker ON after dial until CONNECT Returns online O0 Returns online O1 Returns online and retrains Sets pulse dial for phone lines that don t support touchtone dialing Qn Displays suppresses result codes QO 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 40 Sportster Winmodem 33600 amp x2 56K User s manual Sr Sr S Vn Xn n Sets register rto n See list of S register settings on the next section Displays contents of S register r Displays a list of the S Registers See list of S register settings on the next section Sets tone dial Displays verbal numeric result codes VO Numeric codes V1 Verbal codes Sets result code displayed Default is X4 Sportster Winmodem 33600 amp x2 56K Use
31. ode of the communications application and typing in AT S7 value NOTE This va ue must be between 1 and 255 seconds refer to the AT command table for further details The range of acceptable values is country dependent 18 Sportster Winmodem 33600 amp x2 56K User s manual Un Installing the Modem Un installing the Sportster Winmodem 33600 amp x2 56K requires that you e Remove the modem from the expansion slot after turning off your computer e Remove the modem programs from the computer s hard drive after turning your computer back on You should do this with the uninstall program which can be found In the Sportster Winmodem 33600 amp x2 56K group of the Program Manager window in Windows 3 1 and 3 11 systems In the Sportster Winmodem 33600 amp x2 56K icon of the Control Panel window in Windows 95 systems It does not matter which of these you do first removing the modem or removing the modem programs but you must do both to completely un install the modem Sportster Winmodem 33600 amp x2 56K User s manual 19 20 Sportster Winmodem 33600 amp x2 56K User s manual Troubleshooting Problems and Solutions If you encounter problems even though you have followed the installation and use instructions of the modem refer to the following table that lists the most common failures and their solutions Identifying the current problem Symptom Solution The sof
32. odem 33600 amp x2 56K User s manual 51 software incompatibilities Some software may not accept 7200 12000 and 14400 bps result codes 52 Sportster Winmodem 33600 amp x2 56K User s manual Bit 4 Bit5 Result 0 0 Complete handshaking sequence V 42 Detection LAPM error control MNP 16 0 Disable MNP 0 32 Disable V 42 Detection and LAPM 16 32 Combined value of 48 nego tiates LAPM without Detec tion phase Choose this value if the remote modem uses LAPM but does not support the Detection phase Reg Default Function 28 S29 S30 S31 S32 Sets the V 32 handshaking time allowable range of 0 25 4 seconds 0 zero Eliminates the V 32 answer tones for a faster connection 8 Default time all times are in tenths of seconds 255 Disables all connections except V 32 at 9600 bps 20 Sets the duration in tenths of a second of the V 21 answer mode fallback timer 0 Reserved 128 Reserved 2 Bit mapped register setup for the 28 8 speed modems only To set the register see the instructions for S13 Bit Value Result O zero 1 V 8 Call Indicate enabled 2 Enables V 8 mode 4 Reserved 8 Disable V 34 modulation 16 Disable 33 6 kbps support 32 Reserved 64 Reserved OaRWND Sportster Winmodem 33600 amp x2 56K User s manual 53 7 128 Reserved Reg Default Function 33 0 Bit mapped register setup for the 28 8 speed modems only To set the register see the instr
33. odem file transfer protocol If that does not work try Ymodem Only use Xmodem as a last resort During Fax Transmissions If errors are occurring in your V 17 14 4 fax transmissions Type this initialization string in your software initialization string screen AT amp H3 amp I2 amp R2S7 90 last character is zero 30 Sportster Winmodem 33600 amp x2 56K User s manual If You Are Still Having Problems e Re read this manual especially the Remarks on Using the Modem section e Contact your reseller who will be able to provide you with the necessary assistance This is much more efficient and less costly than sending the modem back to us for a problem that is possibly only a simple matter of adjusting the settings e f your reseller can t help you contact your PC Company 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 Sportster Winmodem 33600 amp x2 56K User s manual 31 32 Sportster Winmodem 33600 amp x2 56K User s manual Voice Functions Overview of Voice Functions A voice modem has the capability of being able to transform analog sound data such as voices into digital data that are compatible with computers This digitization operation is called sampling Once the data is in digitized form it can be stored on the computer s hard
34. ollows connection rate amp B1 Fixed serial port rate amp B2 Fixed in ARQ mode variable in non ARQ mode amp Cn Controls Carrier Detect CD signal amp CO CD override amp C1 Normal CD operations amp Dn Controls Data Terminal Ready DTR operations amp DO DTR override amp D1 DTR toggle causes online Command mode amp D2 Normal DTR operations amp D3 Resets on receipt of DTR amp Fn Loads a read only non programmable factory configuration amp FO Generic template amp F1 Hardware flow control template amp F2 Software flow control template Sportster Winmodem 33600 amp x2 56K User s manual 43 amp Gn amp Hn amp ln amp Kn amp Mn amp Nn 44 Sets Guard Tone amp GO No guard tone U S and Canada amp G1 550 Hz guard tone some European countries requires BO setting amp G2 1800 Hz guard tone U K requires BO setting Sets Transmit Data TD flow control amp HO Flow control disabled amp H1 Hardware flow control Clear to Send CTS amp H2 Software flow control XON XOFF amp H3 Hardware and software control Sets Receive Data RD software flow control see also amp Rn amp l0 Software flow control disabled amp 11 XON XOFF signals to your modem and remote system amp l2 XONXOFF signals to your modem only Enables disables data compression amp KO Data compression disabled amp K1 Auto enable disable amp K2 Data compression enabled amp K3 MNP5 comp
35. on the screen This function is provided with most communications software MNP Microcom Networking Protocol Error correction protocol developed by Microcom Inc and now in the public domain MNP protocol guarantees error free transmissions using error detection CRC and re transmission of incorrect data frames 64 Sportster Winmodem 33600 amp x2 56K User s manual The modem uses MNP 2 4 and MNP 5 error correction and data compression techniques that are incorporated in recommendation ITU T V 42 NVRAM Non Volatile Random Access Memory which can be programmed by the user with data that are stored when the modem is powered down The modem includes this kind of memory to store a default configuration defined by the user and loaded into random access memory RAM upon power up Parity Error detection method that checks the correctness of transmitted characters Verification of characters has been replaced by more reliable and efficient block control methods including Xmodem types of protocols and the ARQ protocol implemented in the modem Two communicating computers must use the same kind of parity Protocol Set of rules and procedures describing communications between different devices Protocols vary but communications equipment must use the same protocol in order to exchange data Data formats the ready to receive or transmit states error detection and correction are some of the operations that can be defined in pr
36. ons check the safety levels on the various interfaces e Telephone line connector TNV These indications are classified as per security standard EN 60 950 A2 10 93 e SELV Very Low Safety Voltage e TNV Telecommunications Network Voltage voltages in compliance with standard EN 41003 08 93 criteria 58 Sportster Winmodem 33600 amp x2 56K User s manual CE Mark Electromagnetic Compatibility This device complies with the following standards in accordance with the European Directives 91 263 CEE e Immunity EN 50082 1 06 92 e Emission EN 55022 class B 08 87 Safety This device complies with the following standard in accordance with the European Directives 91 263 CEE EN 60950 A2 10 93 Sportster Winmodem 33600 amp x2 56K User s manual 59 60 Sportster Winmodem 33600 amp x2 56K User s manual Glossary Analog signals Variable and continuous waves such as voice tones carried by telephone lines Compare with digital signals ARQ General term qualifying error correction protocols that detect errors and automatically re transmit the incorrect data blocks See MNP and V 42 ASCII Acronym for American Standard Code for Information Interchange 7 bit binary code 0 and 1 used to represent letters numbers and special characters such as and Asynchronous transmission Data transmission during which the time between transmission of characters can vary Since the time delays between characters a
37. otocols Remote Echo A copy of the data received by the remote system is sent back to the transmitting system and displayed on the screen Remote echo is a function of the remote system and is often used in full duplex transmissions RTS CTS Hardware check used to tell an intelligent device to stop or resume data transmission Sportster Winmodem 33600 amp x2 56K User s manual 65 Serial transmission Sequential data transfer one bit at a time using only one electrical circuit Synchronous transmission Data transmission during which both communicating devices are synchronized by a common clock Using this mode eliminates the need to systematically add a stop bit and a start bit to each transmitted character Terminal mode Required simulation mode for computers to transmit data In terminal mode the computer acts as though it were a dumb terminal rather than a data processing unit Keystrokes go directly to the modem whether they are modem commands or data to be transmitted via the telephone lines Received data are displayed directly on the screen Terminal A unit whose keyboard and screen are used to send and receive data via a communications link A terminal differs from a micro computer in that it has very little or no internal processing capabilities Transmission rate Number of bits transmitted per second bit s Communications channels using modems on telephone lines are set to binary rates generally
38. p x2 56K supports Plug and Play installation the fastest easiest way to add new features to your PC a modem a sound card etc Sportster Winmodem 33600 amp x2 56K User s manual 5 STEP 1 Insert the Modem Into the Computer Inserting the board into the groove Installation Procedure 1 Turn off and unplug the computer 2 Unplug all the peripheral devices screen printer etc 3 Remove the computer s cover to have easy access to the internal bus connectors 4 Choose an unused expansion slot and remove its bracket shaped like a square ruler located on the back panel 5 Insert the board into the groove making sure that its edge makes contact with the back panel of the machine 6 Fasten the edge to the computer s panel replace the cover and screws 7 Plug in the end of the phone cord that came with the modem into the modem s TELCO jack The 6 Sportster Winmodem 33600 amp x2 56K User s manual TELCO jack is accessible through an opening in the computer s case 8 Plug the other end of that cord into a wall jack for an analog line 9 If you want to use a telephone on that line the setup is as follows Plug the telephone s cord into the telephone wall jack as shown above 10 Plug in the power plug and turn the computer on Sportster Winmodem 33600 amp x2 56K User s manual 7 STEP 2 Run the Modem s Installation Program Sportster Winmodem 336
39. quence A pause in dialing may be needed to allow time to connect to the outside PSTN line An example of dialing an outside line is shown below where a9 is used to access the outside line and a comma causes a pause in the dialing sequence ATD9 12345678 The value of register S8 may be adjusted to give the required delay or use a W in place of acomma The W causes the modem to wait for a second dial tone before continuing and may result in faster dialing 22 Sportster Winmodem 33600 amp x2 56K User s manual There is no audible tone when you try to call The speaker is turned off reset the modem s settings to the factory settings The cables are not correctly connected Check all connections from the telephone wall jack to the modem There is a problem with the telephone line check it using a standard telephone set You are connected to an incompatible telephone network Refer to the section Utilization Notes in this manual The modem does not respond to incoming calls Check that the application s auto answer mode is turned on Some office networks use a low voltage call signal that the modem cannot recognize Try connecting the modem to a line that is not part of this type of network The modem connects to the remote modem but the text received is illegible Incorrect software configuration Check that the transmission speed the parity and the number of stop bits defi
40. r Detect CD signaling is set correctly See amp Cn in the Commands chapter You may need to review the manual that came with your communication software to see what CD operation your software requires If you are not using the communication software that came with the modem you may need to change the CD setting Check the manual that came with the software If double characters are displayed on your screen Example AATT If both modems exchange carrier signals but fail to establish a data communications link Both your modem and your communications software s local echo features are on Turn one off by going into terminal mode your communications software should let you switch to terminal mode and 1 Typing ATEo the last character is zero 2 And then pressing the ENTER ke Place the call again You may have had a bad phone line or a bad connection The telephone company routes all calls even local calls differently each time you call Call a different modem to see if the problem persists The remote modem might be an older 2400 bps modem that does not support error control Disable error control by going into terminal mode your communications software should let you switch to terminal mode and 1 Typing AT amp Mo the last character is zero 2 And then pressing the ENTER key 3 Typing ATDT followed by the telephone number 4 And then pressing the ENTER key Sportster Winmod
41. r s manual 41 Xn Setting gt i gt ie x gt Result Codes XO x1 gt a 0 OK 1 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 Functions Adaptative Dialing e Wait for 2nd dial tone W Wait for answer e Fast Dial Requires in dial string replaces NO CARRIER 42 Sportster Winmodem 33600 amp x2 56K User s manual Yn Selects power on reset default configuration YO Default is profile 0 setting in NVRAM Y1 Default is profile 1 setting in NVRAM Z Resets modem based on factory settings ZO Resets modem to NVRAM profile selected by Y command Z1 Resets modem to NVRAM profile 0 Z2 Resets modem to NVRAM profile 1 Z3 Resets modem to factory default profile 0 amp FO Z4 Resets modem to factory default profile 1 amp F1 Z5 Resets modem to factory default profile 2 amp F2 Advanced Command Set amp An Enables disables ARQ codes amp AO ARQ result codes disabled amp A1 ARQ result codes enabled amp A2 V 32 modulation indicator added amp A3 Protocol indicators addedLAPM MNP NONE error control and V42BIS MNP5 data compression amp Bn Sets modem s serial port rate amp BO Variable f
42. re not uniform the receiving modem must be signaled when the start and end of a characters data bits occur Stop and start bits are therefore added to each character transmitted Baud rate Number of state transitions per second on a communications channel Even though it is incorrect from a strictly technical point of view the baud rate is often used to indicate the transmission rate Sportster Winmodem 33600 amp x2 56K User s manual 61 Bit A 0 or a 1 reflecting the use of a binary numbering system a system that consists of 2 values This system is used because the computer only recognizes two states off or on Start Stop bits Signaling bits attached to a character before it is transmitted used for asynchronous transmissions Bits Start Stop bits Signaling bits attached to a character before it is transmitted used for asynchronous transmissions Bps The rate in bits per second Thousands of bits per second are expressed as kilobits Buffer An area of memory used as temporary storage during input output operations The modem has for example a command buffer Carrier Continuous frequency that can be modulated or act as a support to another data carrier signal Carrier waves are generated and maintained by modems via the telephone companies transmission lines Cps Data transfer rate Characters per second It is generally estimated from the binary rate and the length of characters For example
43. ression disabled Sets Error Control ARQ 1200 bps and higher amp MO Normal mode error control disabled amp M1 Reserved amp M2 Reserved amp M3 Reserved amp M4 Normal ARQ amp M5 ARQ mode Sets forced connect speed If connection cannot be established at this speed the modem will hang up amp NO Variable rate amp N1 300 bps amp N2 1200 bps amp N3 2400 bps amp N4 4800 bps amp N5 7200 bps amp N6 9600 bps amp N7 12 000 bps amp N8 14 400 bps Sportster Winmodem 33600 amp x2 56K User s manual amp Pn amp Rn amp Sn amp Tn amp Wn amp Yn amp N9 16 800 bps amp N10 19 200 bps amp N11 21 600 bps amp N12 24 000 bps amp N13 26 400 bps amp N14 28 800 bps amp N15 31 200 bps amp N16 33 600 bps Sets pulse rotary dial make break ratio amp PO U S Canada ratio 39 61 amp P1 U K ratio 33 67 Sets Receive Data RD hardware flow control Request to Send RTS see also amp In amp R1 Modem ignores RTS amp R2 Received Data to computer only on RTS Controls Data Set Ready DSR operations amp S0 DSR override always ON amp S1 Modem controls DSR Begins test modes amp TO Ends testing amp T1 Analog Loopback amp T2 Reserved amp T3 Local Digital Loopback amp T4 Enables Remote Digital Loopback amp T5 Prohibits Remote Digital Loopback amp T6 Initiates Remote Digital Loopback amp T7 Remote Digital with self te
44. s to recording or playback levels there are usually two of them that relate to the silence These settings are used one to set the minimum noise level on the line that the modem can consider as silent the other the maximum length of silence before going on hook Sportster Winmodem 33600 amp x2 56K User s manual 35 36 Sportster Winmodem 33600 amp x2 56K User s manual Appendix A Technical Reference Main AT commands 1 Type the commands entirely in upper case or lower case but do not type commands using a combination of the two cases 2 All commands with the exception of A and are preceeded by the AT prefix and are executed after pressing the Enter Carriage Return key lt Enter gt 3 The maximum length of a command is 40 characters The modem does not count the AT prefix character the Enter key or spaces On the other hand it does count punctuation marks such as dashes and parentheses 4 Any missing numeric parameter is considered to be equal to zero for instance the disconnect command ATH lt Enter gt is equivalent to ATHO lt Enter gt Sportster Winmodem 33600 amp x2 56K User s manual 37 Basic Command Set AT amp Any key A Required command prefix except with A and Use alone to test for OK result code Displays a basic command list online help Re executes the last issued command Used mainly to redial This does not require the AT prefix or a Carr
45. st and error detector amp T8 Analog Loopback with self test and error detector Writes current configuration to NVRAM templates amp WO Modifies the NVRAM 0 template Y0 amp Wi Modifies the NVRAM 1 template Y1 Sets break handling amp YO Destructive but doesn t send break amp Y1 Destructive expedited amp Y2 Nondestructive expedited amp Y3 Nondestructive unexpedited Sportster Winmodem 33600 amp x2 56K User s manual 45 amp Zn s amp Zn L Writes phone number string sto NVRAM at position n n 03 Writes last executed dial string to NVRAM at position n n 03 amp Zn Displays the phone number stored at position n n 03 amp ZL Displays the last executed dial string S Registers e Default values are appropriate for most users The settings are modified with the ATSr n command where r is the number of the S register and nis a decimal value between 0 and 255 unless otherwise stated e Use ATSr to examine the configuration of a register For example ATSO Enter Reg Default Function SO S1 S2 S3 S4 S5 46 0 Sets the number of rings on which to answer in Auto Answer Mode When set to 0 Auto Answer is disabled 0 Counts and stores the number of rings from an incoming call SO must be greater than 0 43 Stores the ASCII decimal code for the es cape code character Default character is A value of 128 255 disables the escape code The rang
46. t later 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 Configuration icon in the Sportster Winmodem 33600 amp x2 56K group in the Program Manager window Running the Installation Program on a Windows 95 System After inserting the Sportster Winmodem 33600 amp x2 56K by following the steps in the STEP 1 Insert the Modem Into the Computer section page 6 1 When the screen tells you to insert the installation disk 2 Follow the screen commands to complete the installation program NOTE At one point you ll be told which COM port the modem has been installed on Write the COM port on the first page of this manual You may need to know the number later When you ve finished the installation program a Sportster Winmodem 33600 amp x2 56K icon will appear in the Control Panel window You ll then be ready to install the communications software See instructions below 10 Sportster Winmodem 33600 amp x2 56K User s manual STEP 3 Installing the Communications Software You ll need communications software to get the modem working dialing numbers downloading files sending faxes etc e If you re asked to select your modem type from a list select a high speed Sportster or Courier Dual Standard e f you cannot select a Sportster or Courier model from the list try 1 Typing th
47. tware indicates that the modem is not installed Check the software configuration Make sure that it is configured for the appropriate COM port in most cases it should be set to COM2 Check also that no other application is using this same port Check also that the modem is properly inserted in its casing The modem displays double characters on the terminal screen Both the modem and the application local echoes are turned on To turn local echo off type ATEO lt Enter gt Sportster Winmodem 33600 amp x2 56K User s manual 21 The modem does not respond when in terminal mode you send AT commands Check that the COM port to which the modem is connected is properly declared Check the IRQ configuration in the communications software or in the Windows Control Panel Check that the application is in terminal mode If none of the preceeding solutions solve the problem it means that the modem is certainly in conflict at the COM port IRQ level Begin the installation procedure in the Installation chapter If you change the COM IRQ configuration don t forget to make these changes in the application as well The modem cannot make a call and sends the message NO DIAL TONE The modem cannot make a call when connected to a PBX Check the connection to the telephone line It could be that the modem cannot detect the dial tone Try the ATX3DT lt phone number gt dial se
48. uctions for S13 Bit Value Result 0 zero 1 Disable 2400 symbol rate 1 2 Disable 2743 symbol rate 2 4 Disable 2800 symbol rate 3 8 Disable 3000 symbol rate 4 16 Disable 3200 symbol rate 5 32 Disable 3429 symbol rate 6 64 Reserved 7 128 Disable shaping S34 O zero Bit mapped register setup To set registers see instructions for 13 Bit Value Result 0 zero 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 38 0 Sets an optional delay in seconds before a forced hang up and clearing of the Transmit buffer when DTR drops during an ARQ call This allows time for a remote modem to acknowledge receipt of all transmitted data before it is disconnected Default 0 the modem immediately hangs up when DTR drops 54 Sportster Winmodem 33600 amp x2 56K User s manual This option only applies to connections terminated by dropping DTR If the modem receives the ATH command it ignores S38 and immediately hangs up Sportster Winmodem 33600 amp x2 56K User s manual 55 56 Sportster Winmodem 33600 amp x2 56K User s manual Appendix B Technical Specifications Sportster Winmodem 33600 amp Compatibility Speeds Error correction Data compression Operation Format DTE DCE Comm
49. urned on both at the modem and in the software Turn the software local echo off if such an option is available or turn the modem local echo off with the following commana ATEO lt Enter gt Factory Settings The modem has been pre configured at the factory In most cases it will work properly with these factory settings However if necessary you can modify them with the communication commands In order to display the present modem settings do the following 1 Run the communications program 2 Go into the program s terminal mode 3 Type 16 Sportster Winmodem 33600 amp x2 56K User s manual ATI4 lt Enter gt The modem will respond to this command by displaying a list of the configuration settings To modify them please refer to Appendix A Resetting the Modem to Factory Settings Some transmission sessions can modify the modem s configurations If you are unsure of the current configuration of the modem or if it seems to be not working correctly you might want to reset it to the factory settings To do this 1 Run the communications program 2 Go into the program s terminal mode 3 Type AT amp F1 lt Enter gt This re initialization includes resetting the hardware flow control a fixed speed on the communication port and complete result codes If you want to set software flow control on KON XOFF type the following command instead AT amp F2 lt Enter gt On the other ha
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