3Com 1.024.1644-00 manual Possible Solution

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Troubleshooting

PROBLEM: If Plug and Play 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.

POSSIBLE SOLUTION

The Plug and Play installation was not successful. Try the following:

1.Click Windows 95 Start and click Shut Down. When asked if you wish to shut down your computer, click Yes. When Windows 95 indicates that it is safe to turn off your computer, turn it off and wait 15 seconds. Then turn the computer back on. Windows 95 may detect your modem upon this restart, even if it did not detect the modem during the initial installation. If you see screens indicating that new hardware has been detected by Windows 95, follow the on-screen instruction to install the modem. If you do not see the new hardware screens, continue with step 2 below.

2.Click Windows 95 Start, point to Settings, and click Control Panel. Double-click the System icon and then click the Device Manager tab on the “System Properties” screen. Look for “Other Devices” or “Unknown Devices” in the list that appears. If you do not see either of these options in the list, please contact our technical support department. If you do see one of these options, double-click the option. If the description that appears matches the modem you are trying to install, click Remove. Click OK when Windows asks if you wish to remove the device. Next, restart the computer and continue with the on-screen instructions. If the computer does not detect the modem after this second restart, please contact our technical support department.

38 56K Voice Faxmodem Internal - User’s Guide

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Contents 56K Voice Faxmodem Internal Page Table of Contents Page Table of Contents Page Welcome to 56K*Information Access Product Features Back Channel Link Rates Upload Speeds Flash ROM Upgradable Determining Available Resources Control PanelWindows 95 version Determining Your Version of WindowsClick Properties Plug and Play Installation How to Prepare for Plug and Play InstallationHow to Insert the Modem into the Computer Serial NumberPage Page Page Page Installing Modem Drivers With Windows Versions 950 and 950a Moving Through the New Hardware Found ScreensPage COM Port Click More Info… Installing Modem Drivers With Windows Version 950b Using the Update Device Driver Wizard ScreensPage COM Port Click More Info… Word about COM Ports and IRQs How to Change the Modem’s Settings Page How to Insert the Modem into the Computer Page Page Page Page Restart Now Software Installation WindowsFlow Control Type of ModemInitialisation String Possible Solution Read This FirstTroubleshooting Possible Solution Possible Solution Possible Solution Troubleshooting Possible Solution Support Resources Are You Still Having Problems? Support ResourcesAnalogue signals Answer modeAnalogue loopback ApplicationGlossary Glossary Auto dial Baud rateBinary digit bit Bit rateData mode Glossary CharacterCharacters per second CPS Class 1Default Detect phaseDigital signals GlossaryGlossary Error control Fax modeFacsimile Flow controlLocal echo ModemNonvolatile memory Nvram OFF/ON hookOriginate mode Glossary Online fallback/fall forwardParity ProtocolTerminal mode Serial transmissionStart/stop bits Terminal22 bis 27ter32 bis See online fall back/fall forward42 bis XmodemYmodem Ymodem GTechnical Reference Technical Reference ITU-T answer sequenceDials the specified phone number, includes the following En Sets local echoLn Controls speaker volume internals only Technical Reference Hn Controls ON/OFF hookDisplays the following information Mn Operates speakerNumeric codes Verbal codesTechnical Reference Sets result code displayed, default is 11/RINGINGTechnical Reference Resets modem Displays a list of ampersand & commandsAn Enables/disables additional result code subsets see Xn Cn Controls Carrier Detect CD signalFn Loads a read-only non-programmable factory configuration Kn Enables/disables data compressionSets Guard Tone Hn Sets Transmit Data TD flow control see also &Rn300 bps Sets pulse rotary dial make/break ratio No restrictions on the minimum speed for Wn Writes current configuration to Nvram templates Yn Sets break handling64 56K Voice Faxmodem Internal User’s Guide Register Default Function RegistersDefault Function Bit Value ResultTechnical Reference Register Default Function S13Timer S27 See the instructions for S13 S34 Bit Fax Commands +FCLASS=n Sets the mode of operationDisplayed As a number Words Description +FTH=n+FRH=n Regulatory CE ComplianceLimited Warranty