US Robotics 001171-00 User Manual Download Page 47

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n Sets floor connect speed when &Un is set greater than 0.

&Nn is the ceiling connect speed. See &Nn.

&U0

Disabled

&U1

300 bps

&U2

1200 bps

&U3

2400 bps

&U4

4800 bps

&U5

7200 bps

&U6

9600 bps

&U7

12.000 bps

&U8

14.400 bps

&U9

16.800 bps

&U10

19.200 bps

&U11

21.600 bps

&U12

24.000 bps

&U13

26.400 bps

&U14

28.800 bps

&U15

31.200 bps

&U16

33.600 bps

n Writes current configuration to NVRAM templates.

&W0

Modifies the NVRAM 0 template (Y0)

&W1

Modifies the NVRAM 1 template (Y1)

Sets break handling.
&Y0

Destructive, but doesn’t send break

&Y1

Destructive, expedited

&Y2

Nondestructive, expedited

&Y3

Reserved

Summary of Contents for 001171-00

Page 1: ...re registered trademarks of U S Robotics Any trademarks trade names service marks or service names owned or registered by any other company and used in this manual are the property of their respective companies 1996 by U S Robotics 7770 North Frontage Road Skokie IL 60077 2690 All Rights Reserved ...

Page 2: ...nstallation and operating instructions for the following U S Robotics modems Sportster Voice 33 600 and 28 800 Faxmodem This product complies with the Low Voltage Directive LVD and Electromagnetic Compatibility EMC directive ...

Page 3: ...ics 1 Introduction to Modem Technology 2 Features 3 External Modem Installation 5 Internal Modem Installation 8 Communications Software 13 Troubleshooting 16 U S Robotics Online Resources 21 Glossary 24 Quick Reference 34 S Registers 47 Warranty 55 ...

Page 4: ...a new world of information access As an innovator in the data communications field U S Robotics has a history of bringing the latest technology to market at an affordable price U S Robotics owns the core technology known as the data pump that works in its access products This allows U S Robotics to bring new technologies and features to market faster and at a lower cost while passing the savings o...

Page 5: ... the call then changes the analog signal back into digital data that the computer can digest This shift of digital data into analog data and back again allows two computers to speak with one another Called modulation demodulation this transformation of signals is how the modem received its name With a modem and a standard telephone line you can send faxes to the office or important customers witho...

Page 6: ...V FC V 32 bis V 32 V 22 bis Bell 212A V 22 V 23 V 25 and Bell 103 V 21 modems Fax Capability You can use your modem with Class 1 or Class 2 0 fax software to exchange faxes with Group 3 fax machines worldwide at speeds up to 14 400 bps 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 so...

Page 7: ...lt in microphones and you can attach a microphone and speaker to the internal models Personal Voice Mail With Personal Voice Mail your modem is a full featured messaging system offering business quality voice mail features in the convenience of your home or office Using this feature you can send voice greetings and record voice messages like a standard answering machine with several voice mailboxe...

Page 8: ...e and Manual RJ11 phone cord Power Adapter Telephone plug Analog Standard Telephone Jack This Guide There are two parts to installation software and hardware Software allows you to communicate with your modem so that you can send and receive data and faxes as well as activate voice features Software installation is discussed in your communications software manual Hardware is the modem itself which...

Page 9: ...ary when installing your communications software 2 Plug the power adapter into the power jack and into a standard wall outlet 3 Plug one end of the phone cord into the telephone jack labeled with a wall plug icon on the bottom of the case and the other end into a phone wall jack 4 If you wish to use your modem and phone through the same phone wall jack plug your phone s cord into the modem s other...

Page 10: ...ilt into your modem is located on the front panel Installing your Software 1 Insert the software diskette included with your modem or another modem software disk If using other software consult its own manual for installation procedures 2 From Program Manager choose File Then choose Run and type a install and press Enter 3 Once the software is installed enter the software group and click on the ap...

Page 11: ...t you have an available 8 or 16 bit expansion slot in your computer Installation There are two parts to the installation of your modem hardware and software Hardware is the modem itself which will be installed inside of your computer Your modem should be installed before your software Software allows you to communicate with your modem so that you can send and receive faxes call an online service t...

Page 12: ...or computer manufacturer to see whether your system supports the Plug and Play features Once your system sets the configuration it will use this configuration every time you turn on your machine In order to activate the Plug and Play feature with your modem you must take off all the contacts on the COM port and IRQ jumpers on the modem You will be able to tell which COM port your modem has been se...

Page 13: ... on your modem lift the black plastic pieces and place them on the contacts to match the desired settings The settings are as follows 0 1 SEL COM 1 0 1 SEL COM 3 To change the settings on your modem lift the black plastic pieces and place them on the contacts to match the desired settings The settings are as follows The following is a list of recommended combinations of COM port and IRQ settings w...

Page 14: ...d remove the solid bracket at the back of any available expansion slot 6 Insert the modem board into the slot you have chosen with the gold leads on the modem board s edge firmly in the slot s groove 7 Once the modem is in place screw the bracket at the back of the modem firmly to the computer s rear panel This ensures that the modem board is firmly in place 8 Replace the computer cover and all it...

Page 15: ...selection in the Manufacturers list 4 Next find and click on your modem model listed in the Models list Then click on the OK button Windows 95 has now been configured to work with your new modem Now you re ready to install your software Installing your Software 1 Insert the software diskette included with your modem or another modem software disk If using other software consult its own manual for ...

Page 16: ... information Be sure to install software after the modem is installed Configuring Your Modem Some programs allow you to select your modem type from a menu Select the appropriate U S Robotics Sportster High Speed modem If yours is not present try a Courier Dual Standard V 32 bis V FC or V 34 Other programs require you to enter an initialization string in the software Modem Setup screen If this is t...

Page 17: ...ype Also fix or lock the serial port rate if referred to as autobaud select OFF UART Serial Rate 16550 115 2K or 57 6K bps 16450 38 4K bps 8250 19 2K bps Note All internal Sportsters have a 16550 UART on the modem Some software packages offer 12 000 bps as a serial port rate Do NOT select this option Your modem will not function properly with that setting 6 Specify the serial COM port used by the ...

Page 18: ... allowing you to send commands directly to the modem 2 To determine if your computer and modem are communicating properly type the following command AT E1 Q V1 Enter If the COM port and IRQ settings are correct on your modem and in your software the modem responds OK If the characters you type do not appear no OK appears or double characters appear see the Troubleshooting section in this guide ...

Page 19: ...ettings Lift the black plastic shunts off the modem and replace the COM port shunt to 3 and the IRQ shunt to 5 If you change your COM port and IRQ settings also make the changes in your software and in Windows If your modem displays double characters on your monitor Both your modem s and software s local echoes are on and need to be turned off by typing the command ATE0 Enter If your modem doesn t...

Page 20: ...sable error control with the following command AT M0 Enter Try connecting with the remote modem again When the call is finished remember to reset the modem ATZ Enter During data transfer If your screen displays random or garbage characters Set your software to the same word length parity and Stop bits as the remote modem Make sure that your software and modem are set to the same flow control setti...

Page 21: ...curring in your V 17 fax transmissions Enter the following initialization string in your software modem setup screen AT H3 I2 R2S7 90 Disable any Terminate and Stay Resident TSR programs that are running in the background If your problems occur when you send faxes from Windows and your computer had a 16550 UART load the comdriver that came with your fax software This may require re installing the ...

Page 22: ...odem 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 USR BBS 01734 692200 USR FaxBack 01734 228299 CompuServe GO USROBOTICS Internet uksupport usr com Fax 01734 694222 Hotline 01734 441000 If you must return the modem to us Contact U S Robotics Customer Support to obtain a Return Materials Authorization RMA num...

Page 23: ...erminal emulation Data Bits 8 Parity None Stop Bits 1 2 Put your computer in Terminal mode Enter the following command ATDT 01734692200 Enter 3 If this is your first time connecting to our BBS you will be asked to enter your name and a password as well as fill out a questionnaire 4 When you finish registering press enter with each prompt until you come to the main menu Select the appropriate lette...

Page 24: ...KUNZIP EXE is also available on the BBS 5 SP_HELP ZIP The Guide in a zipped Windows Help format 6 SP_ASCI TXT The Guide in an uncompressed ASCII format 7 Protocol Type for Transfer Your selection depends on what your software supports If possible make Zmodem your first choice Xmodem should be your last choice since it is very slow 8 Depending on the software you are using you will either be prompt...

Page 25: ...S Robotics Home Page containing the same information as the Internet on Demand listing as well as information about U S Robotics Logon to http www usr com CompuServe Access the same information as the Internet FTP site Connect through the Modem Vendor Forum or e mail us through CompuServe Mail for a response within 24 hours Modem vendor forum address is GO USROBOTICS Modem Vendor Section 4 Address...

Page 26: ...a voice over the phone line Contrast with digital signals Answer Mode The mode used by your modem when answering an incoming call from an originating modem The transmit receive frequencies are the reverse of the originating modem which is in Originate mode Application A computer program designed to perform a specific function such as a word processor or a spreadsheet ARQ Automatic Repeat reQuest A...

Page 27: ... to dila voice numbers See command Dn Baud Rate A term used to measure the speed of an analog transmission from one point to another Although not technically accurate baud rate is commonly used to mean bit rate Binary Digit A 0 or 1 reflecting the use of the binary numbering system only two digits Used because the computer recognizes either of two states OFF or ON Shortened form of binary digit is...

Page 28: ...t and Stop bits for a total of ten bits per character will be transmitted at a rate of approximately 240 characters per second cps Some protocols such as error control protocols employ advanced techniques such as longer transmission frames and data compression to increase cps Class 1 and 2 0 International standards used between facsimile application programs and facsimile modems for sending and re...

Page 29: ... assumed at startup or reset by the computer s software and attached devices and operational until changed by the user or software Detect Phase In the ITU T V 42 error control protocol the first stage in establishing if both modems attempting to connect have V 42 capability Dictionary The term used for compression codes built by the V 42 bis data compression algorithm Digital Loopback A test that ...

Page 30: ...ransmitting the image on a page from one point to another Commonly referred to as fax Fax Mode The mode in which the fax modem is capable of sending and receiving files in a facsimile format See definitions for V 17 V 27ter V 29 Flow Control A mechanism that compensates for differences in the flow of data input to and output from a modem or other device See commands Hn In Rn Frame A data communica...

Page 31: ...aph and Telephone Consultative Committee LAPM Link Access Procedure for Modems an error control protocol defined 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 ...

Page 32: ...the called modem which is in Answer mode Parity A simple error detection method that checks the validity of a transmitted character Character checking has been surpassed by more reliable and efficient forms of error checking including V 42 and MNP 2 4 protocols Either the same type of parity must be used by two communicating computers or both may omit parity Protocol A system of rules and procedur...

Page 33: ...The signaling bits attached to a character before the character is transmitted during Asynchronous 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 m...

Page 34: ...ell 212A V 22 modems V 27 A ITU T standard for facsimile operations that specifies modulation at 4800 bps with fallback to 2400 bps V 29 A ITU T standard for facsimile operations that specifies modulation at 9600 bps with fallback to 7200 bps V 32 A ITU T standard for modem communications at 9600 bps and 4800 bps V 32 modems fall back to 4800 bps when line quality is impaired V 32 bis A ITU T stan...

Page 35: ...ain and are available from many bulletin board services XON XOFF Standard ASCII control characters used to tell an intelligent device to stop resume transmitting data 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 w...

Page 36: ...33 4XLFN 5HIHUHQFH Introduction The Quick Reference appendix includes information about the following Front Panel Lights Command Summary S Registers ...

Page 37: ...dem sends result codes or passes received data bits SD Send Data Flashes when computer sends a data bit TR Data Terminal ON if modem receives a DTR Ready signal from computer Always ON modem ignores DTR if the DTR override is ON D0 CS Clear to Send ON until modem lowers CTS when Transmit Data hardware flow control is enabled H1 H3 ARQ Error Control Data Mode Automatic Repeat Request FAX Fax Operat...

Page 38: ...The modem doesn t count the AT prefix carriage returns or spaces Note Defaults are marked with an asterisk Command Set Displays a basic command list online help A Manual Answer goes off hook in answer mode Pressing any key aborts the operations A Re executes the last issued command Used mainly to redial This does not require the AT prefix or a Carriage Return A Re executes the last command that wa...

Page 39: ...nd continues X3 or higher R Originates call using answer reverse frequencies Extended touch tone pad tones DL Dials the last dialed number DSn Dials the phone number string stored in NVRAM at position n n 0 3 Phone numbers are stored with the Zn s command D Displays a list of Dial commands En Sets local echo E0 Echo OFF E1 Modem displays keyboard commands Fn Sets online local echo of transmitted d...

Page 40: ...e memory NVRAM settings I6 Link diagnostics I7 Product configuration I9 Plug and Play information I11 Call statistics Ln Controls speaker volume L0 Low L1 Low L2 Medium L3 High Mn Operates speaker M0 Speaker always OFF M1 Speaker ON until CONNECT M2 Speaker always ON M3 Speaker ON after dial until CONNECT On Returns online O0 Returns online O1 Returns online and retrains P Sets pulse dial for phon...

Page 41: ... codes only in Originate mode Q3 Displays result codes only in Ring mode Sr b n Sets bit b of register r to n 0 OFF or 1 ON Sr n Sets register r to n Sn Displays contents of S Register n S Displays a list of the S Registers T Sets tone dial Vn Displays verbal numeric result codes V0 Numeric codes V1 Verbal codes ...

Page 42: ...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 Adaptive Dialing Wait for 2nd Dial Tone W Wait for Answer Fast Dial Requires in dial string replaces NO CARRIER ...

Page 43: ...efault profile 1 F1 Z5 Resets modem to factory default profile 2 F2 Displays a list of ampersand commands An Enables disables ARQ codes A0 ARQ result codes disabled A1 ARQ result codes enabled A2 V modulation indicator added A3 Protocol indicators added LAPM MNP NONE error control and V42bis MNP5 data compression Bn Sets modem s serial port rate B0 Variable follows connection rate B1 Fixed serial ...

Page 44: ...H1 Hardware flow control Clear to Send CTS H2 Software flow control XON XOFF H3 Hardware and software flow control In Sets Receive Data RD software flow control see also Rn I0 Software flow control disabled I1 XON XOFF signals to your modem and remote system I2 XON XOFF signals to your modem only Kn Enables disables data compression K0 Data compression disabled K1 Auto enable disable K2 Data compr...

Page 45: ...N14 28 800 bps N15 31 200 bps N16 33 600 bps Note When N is used in conjunction with U N sets the highest speed at which your modem will connect and U sets the lowest speed at which the modems will connect The factory default settings for these values should be sufficient for most users N 0 N 0 U 0 Connects at best possible speed between your modem and remote modem Connects at speed defined by N U...

Page 46: ...on RTS Sn Controls Data Set Ready DSR operations S0 DSR override always ON S1 Modem controls DSR Tn Begins test modes T0 Ends testing T1 Initiates Analog Loopback T2 Reserved T3 Initiates Local Digital Loopback T4 Enables Remote Digital Loopback T5 Prohibits Remote Digital Loopback T6 Initiates Remote Digital Loopback T7 Initiates Remote Digital with self test and error detector T8 Initiates Analo...

Page 47: ... 000 bps U8 14 400 bps U9 16 800 bps U10 19 200 bps U11 21 600 bps U12 24 000 bps U13 26 400 bps U14 28 800 bps U15 31 200 bps U16 33 600 bps Wn Writes current configuration to NVRAM templates W0 Modifies the NVRAM 0 template Y0 W1 Modifies the NVRAM 1 template Y1 Yn Sets break handling Y0 Destructive but doesn t send break Y1 Destructive expedited Y2 Nondestructive expedited Y3 Reserved ...

Page 48: ...L Writes last executed dial string to NVRAM at position n n 0 3 Zn Displays the phone number stored at position n n 0 3 Ctrl C Cancels the display of the help screens Ctrl K Cancels the display of the help screens Ctrl S Pauses help screens Escapes to online command mode ...

Page 49: ...lt character is S3 13 Stores the ASCII code for the Carriage Return character CR S4 10 Stores the ASCII decimal code for the Line Feed character LF S5 8 Stores the ASCII decimal code for the Backspace character BS S6 2 Sets the number of seconds the modem waits for dial tone before dialing S7 60 Sets the number of seconds the modem waits for a carrier or answers before returning on hook and sendin...

Page 50: ...call waiting if you have it you may wish to adjust this setting upward to prevent the modem from misinterpreting 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 70 For example ATDT 70 phone number Note If you set S10 255 the modem will not hang up when carrier is lost Dropping DTR hangs up ...

Page 51: ...on reset Auto Dial the number stored in NVRAM at position 0 5 32 Reserved 6 64 Reserved 7 128 Disconnect on escape code The 1 5K byte non ARQ buffer allows data transfer with Xmodem and Ymodem type file transfer protocols without using flow control The 128 byte option lets remote users with slower modems keep data you re sending from scrolling off their screens When remote users send your computer...

Page 52: ...6 Disable MNP level 4 5 32 Disable MNP level 3 6 64 MNP incompatibility 7 128 Disable V 42 operation S16 0 Bit mapped register setup To set the register see instructions for S13 Bit Value Result 0 1 Reserved 1 2 Touch tone dialing test 2 7 4 128 Reserved S17 0 Reserved S18 0 Test timer for T loopback testing Sets the time in seconds of testing before the modem automatically times out and terminate...

Page 53: ...the modem to the computer applies to MNP or V 42 mode only S22 17 Stores the ASCII decimal code for the XON character S23 19 Stores the ASCII decimal code for the XOFF character S24 0 Reserved S25 20 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 f...

Page 54: ...s coded modulation in V 32 mode rarely used part of ITU T Recommendation V 32 2 4 Disables V 32 modulation 3 8 Disables 2100 Hz answer tone to allow two V 42 modems to connect more quickly 4 16 Enables V 23 fallback mode 5 32 Disables V 32 bis mode 6 64 Reserved 7 128 Software compatibility mode This setting disables the codes and displays the 9600 code instead The actual rate of the call can be v...

Page 55: ...ster setup To set the register see the instructions for S13 Bit Value Result 0 1 V 8 Call Indicate enabled 1 2 Enables V 8 mode 2 4 Disable V FC modulation 3 8 Disable V 34 modulation 4 16 Disable 33 6 kbps support 5 32 Reserved 6 64 Reserved 7 128 Reserved S33 0 Bit mapped register setup To set the register see the instructions for S13 Bit Value Result 0 1 Disable 2400 symbol rate 1 2 Disable 274...

Page 56: ...el deviation 6 64 Disable Pre emphasis 7 128 Disable Pre coding S35 S37 Reserved S38 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 The modem immediately hangs up when DTR drops This option only applies to co...

Page 57: ...ED 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 LIMIT...

Page 58: ...Berks You will be given a Return Authorization Number RMA to help U S Robotics keep track of your limited warranty request Once you have received your RMA number take or send the product postage prepaid and insured to U S Robotics at the above address Include proof of the date of purchase IMPORTANT If you send your unit pack it securely and be sure that your RMA number is visible on the outside of...

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