3Com U.S. Robotics 56K Winmodem Manual
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3Com U.S. Robotics 56K Winmodem Manual

3Com U.S. Robotics 56K Winmodem Manual

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56K Winmodem
User's Guide & Reference
PN 1.024.1721-00

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Summary of Contents for 3Com U.S. Robotics 56K Winmodem

  • Page 1 56K Winmodem User’s Guide & Reference PN 1.024.1721-00...
  • Page 2 Uploads from users to server equipment travel at speeds up to 31.2 Kbps. An analog phone line compatible with the V.90 standard or 3Com 56K technology, and an Internet provider or corporate host site compatible with the V.90 standard or 3Com 56K technology are necessary for these high-speed downloads.
  • Page 3 RODUCT ISCLAIMER • This manual covers features that may or may not be present on your modem. Please consult your computer manufacturer’s documentation for a list of your modem’s supported features. • For service and repair issues, contact your computer system manufacturer.

  • Page 4: Table Of Contents

    ABLE OF ONTENTS Welcome to 56K*Information Access Product Features Voice Product Features Voice Product Features Voice Product Features Voice Product Features Installing the Winmodem with Windows 95, Windows 98, and Windows NT 4.0 Plug and Play (PNP) Installation How to Insert the Modem into the Computer Installing Winmodem Drivers with Windows 95 Installing Winmodem Drivers with Windows 98 Installing Winmodem Drivers with Windows NT 4.0...

  • Page 5: Able Of Ontents

    T T T T C C C C ABLE OF ABLE OF ABLE OF ABLE OF ONTENTS ONTENTS ONTENTS ONTENTS Uninstalling the Winmodem with Windows 95, Windows 98, and Windows NT 4.0 Troubleshooting Glossary Technical Reference Typing Commands Basic Data Commands Extended Data Commands S-Registers Fax Commands...
  • Page 6 T T T T C C C C ABLE OF ABLE OF ABLE OF ABLE OF ONTENTS ONTENTS ONTENTS ONTENTS Regulatory Information Manufacturer's Declaration of Conformity Caution to the User IC (Canada) UL Listing/CUL Listing Connecting to the Telephone Company Fax Branding Radio and Television Interference For Canadian Modem Users...

  • Page 7: Welcome To 56K*Information Access

    31.2 compliant modems and fax machines Kbps. An analog phone line compatible with the worldwide. V.90 standard or 3Com 56K technology, and an The ITU has decided on a worldwide provider or corporate host site Internet standard for 56K modem technology.
  • Page 8 RODUCT EATURES Modulation Schemes Fax Modulation Schemes V.34+ Link Rates ITU-T V.90 ITU-T V.17 4800, 7200, 9600, 12000, 3Com 56K technology ITU-T V.29 14400, 16800, 19200, 21600, ITU-T V.34+ ITU-T V.27ter 24000, 26400, 28800, 31200, ITU-T V.34 ITU-T V.21 33600 ITU-T V.32bis...

  • Page 9: Product Features

    OICE RODUCT EATURES If your new modem has voice If your new modem has voice If your new modem has voice If your new modem has voice capabilities, capabilities, the following information capabilities, capabilities, will apply: Speakerphone Speakerphone Speakerphone Speakerphone For voice enabled modems that do not have audio connectors on the bracket, you will With the addition of a microphone, a set of...
  • Page 10 V V V V P P P P F F F F OICE OICE OICE OICE RODUCT RODUCT RODUCT RODUCT EATURES EATURES EATURES EATURES With Personal Voice Mail and the appropriate software, you can record custom greetings, receive messages, and set up multiple voice “...

  • Page 11: Windows Nt

    The modem must be installed before resources before installing the modem. any software is loaded. 1. Click Start, point to Settings, and then Your 3Com U.S. Robotics® modem is a click Control Panel. Plug and Play device. However, Plug and 2. Double-click the System icon.
  • Page 12 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...

  • Page 13: How To Insert The Modem Into The Computer

    ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 14 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 15 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 16 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 17 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...

  • Page 18: Installing Winmodem Drivers With Windows 95

    ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 19 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...

  • Page 20: Installing Winmodem Drivers With Windows 98

    ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 21 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 22 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...

  • Page 23: Installing Winmodem Drivers With Windows Nt

    ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...

  • Page 24: Installing Winmodem Drivers With Windows Nt

    ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 25 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 26 ® ® ® ® I I I I W W W W W W W W 95, W W W W W W W W NT 4.0 NT 4.0 NT 4.0 NT 4.0 NSTALLING THE NSTALLING THE NSTALLING THE NSTALLING THE INMODEM WITH INMODEM WITH INMODEM WITH...
  • Page 27 NINSTALLING THE INMODEM WITH ® 95, W INDOWS INDOWS NT 4.0 INDOWS 6.When your computer is shut down, turn The process for removing your Winmodem from your computer is the same whether it off. your operating system is Windows 95, 7. Unplug the computer’s power cord from Windows 98, or Windows NT.
  • Page 28 ROUBLESHOOTING Read This First! 1. Click Windows Start, point to Settings, and click Control Panel. 2. Double-click the Modems icon. 3. Click the Diagnostics tab. 4.Click on the COM port that your modem is assigned to, so that it is highlighted. If you do not see your modem on this screen, you need to shut down the computer and uninstall the modem.
  • Page 29 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING PROBLEM The computer or software will not recognize the modem. POSSIBLE SOLUTION You may have a COM port/IRQ conflict. 1. Right-click the My Computer icon on your desktop. 2. Click Properties. 3. Click the Device Manager tab. • If you see a yellow exclamation point over your modem, you have a resource conflict, and it is probably an IRQ conflict.
  • Page 30 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING 7. When the “ Confirm Device Removal” screen disappears, shut down Windows and turn off your computer. 8.Unplug the computer from its electrical outlet. 9.Remove the cover of the computer, physically remove the modem from its expansion slot, and replace the cover.
  • Page 31 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING POSSIBLE SOLUTION Make sure the modem is turned on. An internal modem should turn on automatically when the computer is turned on. POSSIBLE SOLUTION You may not be entering modem commands in the proper manner. Type in all upper case (AT) or all lower case (at).
  • Page 32 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING POSSIBLE SOLUTION You may have plugged your modem’s phone cord into the wrong jack on the modem. Make sure the phone cord is plugged into a jack labeled with POSSIBLE SOLUTION You might have a bad phone cord connection to your modem. The phone cord should be plugged into the jack labeled on the modem and the wall phone jack.
  • Page 33 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING POSSIBLE SOLUTION If you have voice mail, your dial tone may be altered because messages are waiting. Retrieve your voice mail messages to restore your normal dial tone. POSSIBLE SOLUTION Your software may not have auto answer enabled. Enable the auto answer feature. In your communication software’s terminal mode, type ATS0=1 and press ENTER.
  • Page 34 POSSIBLE SOLUTION The phone lines in your area may not be 56K compatible. Call your phone company to find out if your phone line is compatible with the ITU standard for 56K and/or is compatible with 3Com 56K technology. POSSIBLE SOLUTION You may have devices between the modem and the phone jack.
  • Page 35 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING PROBLEM Errors are constantly occurring in your V.17 fax transmissions. POSSIBLE SOLUTION Your modem initialization string may be insufficient for fax transmissions. In terminal mode, type the following initialization string: AT&H3&I2&R2S7=90S36=0 then press ENTER. The standard string for faxing is AT&F1S36=0.
  • Page 36 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING POSSIBLE SOLUTION You may be trying to fax a compressed file. Decompress the file using the application with which it was compressed. Then open it in the application with which it was created. Select your fax software as the printer and then print the file.
  • Page 37 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING PROBLEM If Plug and Play (PNP) does not detect your modem. You have installed the modem and Windows has restarted, but you see only your normal desktop. You do not see any screens indicating new hardware has been detected.
  • Page 38 T T T T ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING ROUBLESHOOTING 7. Point to Settings 8.Click Control Panel. 9.Double-click the System icon. 10. C lick the Device Manager tab on the “ System Properties” screen. 11.Look for “ Other Devices” or “ Unknown Devices” in the list that appears. • If you do not see either of these options in the list, contact your computer manufacturer for technical assistance.
  • Page 39 LOSSARY answer mode Cross references are printed in boldface. Cross references with items in the Data The mode used by your modem when Commands found in the “ Technical answering an incoming call from an Reference” section, are printed in italics. originating modem.
  • Page 40 G G G G LOSSARY LOSSARY LOSSARY LOSSARY ASCII auto-answer American Standard Code for Information In this setting the modem can pick up the Interchange is a code used to represent phone line when it detects a certain number letters, numbers, and special characters, of rings.
  • Page 41 G G G G LOSSARY LOSSARY LOSSARY LOSSARY binary digit buffer A 0 or 1, which reflects the use of the A memory area set aside to be used as binary numbering system. It is used because temporary storage during input and output the computer recognizes either of two operations.
  • Page 42 G G G G LOSSARY LOSSARY LOSSARY LOSSARY character cyclic redundancy checking (CRC) A representation, coded in binary digits, of An error-detection technique consisting of a a letter, number, or other test performed on each block, or frame, of symbol.characters per second (CPS) data by both sending and receiving A data transfer rate generally estimated modems.
  • Page 43 G G G G LOSSARY LOSSARY LOSSARY LOSSARY data compression table default A table containing values assigned for each Any setting assumed, at startup or reset, by character during a call under MNP5 data the computer's software and attached compression. Default values in the table are devices.
  • Page 44 G G G G LOSSARY LOSSARY LOSSARY LOSSARY digital loopback duplex A test that checks the modem's RS-232 Duplex indicates a communications channel interface and the cable that connects the capable of carrying signals in both terminal (computer) and the modem. The directions.
  • Page 45 G G G G LOSSARY LOSSARY LOSSARY LOSSARY fax mode full duplex The mode in which the faxmodem is These signals will flow in both directions at capable of sending and receiving files in a the same time over one line. In facsimile format.
  • Page 46 G G G G LOSSARY LOSSARY LOSSARY LOSSARY ITU-T local echo An international organization that defines A modem feature that enables the modem standards for telegraphic and telephone to display keyboard commands and equipment. For example, the Bell 212A transmitted data on the screen. See standard for 1200 bps communication in command En.
  • Page 47 G G G G LOSSARY LOSSARY LOSSARY LOSSARY modem online fall back/fall forward A device that transmits/receives computer A feature that allows a high-speed, error- data through a communications channel control modem to monitor line quality and such as radio or telephone lines. It also fall back to the next lower speed in a changes signals received from the phone defined range if line quality diminishes.
  • Page 48 G G G G LOSSARY LOSSARY LOSSARY LOSSARY parity A simple error-detection method that Random Access Memory is memory that is checks the validity of a transmitted available for use when the modem is turned character. Character checking has been on, but that clears of all information when surpassed by more reliable and efficient the power is turned off.
  • Page 49 G G G G LOSSARY LOSSARY LOSSARY LOSSARY terminal Read Only Memory is permanent memory, A device whose keyboard and display are which is not user-programmable. used for sending and receiving data over a communications link. This device differs serial transmission from a microcomputer or a The consecutive flow of data in a single mainframe in that it has little or no internal...
  • Page 50 G G G G LOSSARY LOSSARY LOSSARY LOSSARY V.22bis The ITU-T standard specification that An ITU-T standard for modem covers the initial handshaking process. communications at 2400 bps. The standard includes an automatic link negotiation V.17 fax fallback to 1200 bps and compatibility with An ITU-T standard for making facsimile Bell 212A/V.22 modems.
  • Page 51 G G G G LOSSARY LOSSARY LOSSARY LOSSARY V.29 V.34 An ITU-T standard for facsimile An ITU-T standard that currently allows operations that specifies modulation at 9600 data rates as high as 28,800 bps. bps, with fallback to 7200 bps. V.34+ V.32 An enhancement to V.34 that enables data...
  • Page 52 G G G G LOSSARY LOSSARY LOSSARY LOSSARY V.90 Ymodem The ITU-T standard for 56 Kbps modem An error-checking protocol that can send communications. several files of data at a time in 1024-byte (1K) blocks. This protocol can use either Xmodem checksums or CRC for error checking.
  • Page 53 EGULATORY NFORMATION Manufacturer’s Declaration of Manufacturer’s Declaration of Manufacturer’s Declaration of Manufacturer’s Declaration of You must provide this information to the telephone company if requested. The REN Conformity Conformity Conformity Conformity is used to determine the number of devices The manufacturer of this modem declares you may legally connect to your telephone that the product conforms to the FCC’s line.
  • Page 54 R R R R I I I I EGULATORY EGULATORY EGULATORY EGULATORY NFORMATION NFORMATION NFORMATION NFORMATION UL Listing/CUL Listing An FCC compliant telephone cord and modular plug are provided with this This information technology equipment is equipment, which is designed to connect to UL-Listed and CUL-Listed for use with the telephone network or premises wiring UL-Listed personal computers that have...
  • Page 55 R R R R I I I I EGULATORY EGULATORY EGULATORY EGULATORY NFORMATION NFORMATION NFORMATION NFORMATION If the modem is malfunctioning, it may (The telephone number provided may not affect the telephone lines. In this case, be a 900 number or any other umber for disconnect the modem until the source of which charges exceed local or long-distance the difficulty is traced.
  • Page 56 R R R R I I I I EGULATORY EGULATORY EGULATORY EGULATORY NFORMATION NFORMATION NFORMATION NFORMATION If this device does cause interference to You may find the following booklet, radio or television reception, which you can prepared by the Federal Communications determine by monitoring reception when Commission, helpful: the modem is installed and when it is...
  • Page 57 R R R R I I I I EGULATORY EGULATORY EGULATORY EGULATORY NFORMATION NFORMATION NFORMATION NFORMATION For Canadian Modem Users service may be extended by means of a certified connector assembly (telephone NOTICE: The Industry Canada (IC) label extension cord.) The customer should be identifies certified equipment.
  • Page 58 R R R R I I I I EGULATORY EGULATORY EGULATORY EGULATORY NFORMATION NFORMATION NFORMATION NFORMATION For your own protection, make sure that the the requirement that the sum of the Ringer electrical ground connections of the power Equivalence Numbers of all the devices utility, telephone lines, and internal metallic does not exceed 5.”...

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