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56K Voice Faxmodem Internal 
 
 
 
User’s Guide 
 
 
 
 
 
 
 
PN 1.024.1644-00 
 
                                                                                                                                                                                                                                                                                                                                                                                                                         
                    
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                          This manual covers installation and operating instructions for the following  3Com U.S. Robotics modem:  56K* Voice Faxmodem Internal     * IMPORTANT!  In accordance with the ITU standard for V.90 transmissions, this modem  is capable of 56 Kbps downloads. However, the download speeds you experience  may be lower due to varying line conditions and other factors. Uploads from users to  server equipment travel at speeds up to 31.2 Kbps. An analogue phone line compatible  with the ITU V.90 standa
                    
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                        Table of Contents  WELCOME TO 56K INFORMATION ACCESS......................................1  PRODUCT FEATURES.......................................................................2  INTERNAL MODEM INSTALLATION WITH WINDOWS 95...................5  DETERMINING AVAILABLE RESOURCES....................................................5  DETERMINING YOUR VERSION OF WINDOWS 95.........................................6  PLUG AND PLAY INSTALLATION..........................................................
                    
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                        Table of Contents  TECHNICAL REFERENCE ................................................................51  TYPING COMMANDS..........................................................................51  BASIC DATA COMMANDS ..................................................................51  EXTENDED DATA COMMANDS.............................................................57  S-REGISTERS..................................................................................64  FAX COMMANDS .............
                    
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                        Welcome to 56K*Information Access     The International Telecommunications Union (ITU) decides the technical  protocols that communications devices must use to operate with each  other. Modems that comply with ITU standards can “talk” to other  standards-compliant modems and fax machines worldwide.  The ITU has determined a worldwide standard for 56K modem technology.  With a U.S. Robotics modem, you can get 56K Internet access from any  service provider who offers the ITU V.90 standard or 3Com’
                    
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                        Product Features  Modulation Schemes  ITU-T V.90  x2™ technology (Download up to 56kbps, and Upload using V.34)   ITU-T V.34+  ITU-T V.34   ITU-T V.32bis  ITU-T V.32   ITU-T V.23  ITU-T V.22bis  ITU-T V.22  Bell 212A  ITU-T V.21  Bell 103  Error Control and Data Compression Schemes  ITU-T V.42  ITU-T V.42bis  MNP 2-5  Fax Modulation Schemes  ITU-T V.17  ITU-T V.29  ITU-T V.27ter  ITU-T V.21  Fax Standards  EIA 578 Class 1 FAX  EIA 592 Class 2.0 FAX  Front Channel Link Rates (Download Speeds)  28
                    
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                        Product Features  Back Channel Link Rates (Upload Speeds)  4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400,  28800, 31200  V.34+ Link Rates  4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400,  28800, 31200, 33600  V.32bis Link Rates  4800, 7200, 9600, 12000, 14400  Additional Link Rates  300, 1200/75 (V.23), 1200, 2400  Fax Link Rates  2400, 4800, 7200, 9600, 12000, 14400     56K Voice Faxmodem Internal - User’s Guide 3                                           
                    
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                        Product Features  Flash ROM Upgradable  56K Voice Faxmodem Internal supports software download through flash  memory. You can obtain the latest features by downloading updates  quickly and easily.    Speakerphone*  With the addition of an inexpensive set of externally powered speakers,  your new voice modem provides all the convenience of a full-duplex  speakerphone. Unlike many half-duplex speakerphones, your modem  allows you to converse normally without annoying echoes and distortion.  Simply
                    
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                        Internal Modem Installation   with Windows 95  Before you start your installation, make sure that you have the following  items:  Modem  U.S. Robotics Disk  RJ-11 Phone Lead  Tail Lead  Microphone  Analogue (Standard) Telephone Wall Socket  Phillips Head Screwdriver or ¼” Hex Screwdriver  Data/Fax/Voice Communications Software and Manual  Determining Available Resources  Your U.S. Robotics  modem is a Plug and Play device. Windows  95  can automatically identify a Plug and Play device and determ
                    
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                        Internal Modem Installation with Windows 95  You will see the IRQs your system is currently using. If IRQs 3, 4, 5, and  7 are being used, you need to free an IRQ before you begin installation.  This process involves moving a device from the IRQ you want to use to a  different (and usually higher) IRQ setting. Please read the documentation  for (or contact the manufacturer of) the device that is currently using the  IRQ you want to use for your modem, to learn more about what you  should do to m
                    
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                        Internal Modem Installation with Windows 95  Plug and Play Installation  This modem’s factory default setting is “Plug and Play” operation. If you  are using the Windows 95 environment, the COM port and IRQ will  automatically be set to Windows as the environment. Since your new  U.S. Robotics modem is a “Plug and Play” device, Windows 95 may be  able to detect your modem automatically after you plug it into your  computer. The operating system should do all the work of recognising the  modem fo
                    
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                        Internal Modem Installation with Windows 95  4. 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 are hanging as in  the diagram.    If you need to move the jumper shunts, grasp them with tweezers or  needle-nosed pliers. DO NOT grasp too firmly, however, or you may crush  the jumper shunts. If a jumper shunt seems stuck, try gently rocking it  back and for
                    
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                        Internal Modem Installation with Windows 95  4. Remove the screws from your computer’s cover and then remove the  cover, as shown in the following diagrams. Your computer may differ in  appearance from these diagrams, but the basic principle for removing  the cover should be the same. Refer to your computer manufacturer’s  manual if you need further instructions.      5. Find an empty ISA expansion slot that’s at least as long as the gold  edge of your modem. (ISA slots are dark plastic grooves 
                    
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                        Internal Modem Installation with Windows 95  6. Holding the modem by each corner, align the gold edge with the empty  expansion slot. Push down gently until the modem snaps into the slot.  The 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.  Sometimes a gentle back and forth motion helps fit the modem all the  way into the slot. If you fee
                    
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                        Internal Modem Installation with Windows 95     56K Voice Faxmodem Internal - User’s Guide 11                                                                                                                                                                                                                                                                                                                                                                                                                       
                    
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                        Internal Modem Installation with Windows 95  You cannot use the modem and a phone at the same time if they  share the same telephone line. If you want to use a telephone on the  same line as the modem when the modem is not in use, plug your  telephone cord into the modem’s PHONEsocket, using the supplied  Tail Lead Adaptor.   12. An external, powered speaker must be connected for speakerphone    and voice mail usage. Plug a set of powered, magnetically-shielded,  external speakers or a headset (
                    
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                        Internal Modem Installation with Windows 95  Installing Modem Drivers   with Windows 95:  Versions 950 and 950a  Moving Through the “New Hardware Found” Screens  1. When Windows 95 starts, 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.  If this screen does not appear, go to “If Plug and Play Does Not Detect  Your Modem” on page 37.  2. When you see the Install from Disk screen, insert the di
                    
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                        Internal Modem Installation with Windows 95  3. Once Windows finishes loading the information from the disk, 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).    14 56K Voice Faxmodem Internal - User’s Guide