3Com 1.024.1644-00 manual How to Change the Modem’s Settings

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Internal Modem Installation with Windows 3.x

Accessories cannot share COM ports and should not share IRQs. When accessories try to share settings, they will either not work properly or not work at all.

3Com has set your modem to a default Plug and Play setting geared towards Windows 95 users. In this configuration, the shunts used to set your modem’s COM port and IRQ settings are hanging from single jumper pins and will not affect your modem’s settings

Some communications software programs require a particular setting for your modem. Now is a good time to read the software’s manual to determine what setting is required.

How to Change the Modem’s Settings

1.Always touch an unpainted metal part of your computer (the back is usually unpainted) to discharge static electricity before handling the modem. Static can damage your modem.

2.Take the modem out of its plastic bag.

3.Find the COM and IRQ jumper shunts (small black plastic pieces) on your modem’s jumper pins (refer to the diagram).

22 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 PanelClick Properties Determining Your Version of WindowsWindows 95 version 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 WindowsInitialisation String Type of ModemFlow Control 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 operation+FRH=n +FTH=nDisplayed As a number Words Description Regulatory CE ComplianceLimited Warranty