3Com 1.024.1644-00 manual

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Internal Modem Installation with Windows 3.x

The jumper shunts will be hanging from single jumper pins as shown in the following illustration.

4.To change the COM port and IRQ settings, you need to reposition the jumper shunts on the COM port and IRQ pins. To do this, lift the jumper shunts off the pins.

Grasp the jumper shunts with a tweezers or needle-nosed pliers. DO NOT grasp too firmly, as you may crush the shunts. If a jumper shunt seems stuck, gently rock it back and forth as you lift. Do not touch any other part of the modem or your computer with the tweezers/pliers. A shunt needs to be sitting on both jumper pins in order to effectively set the modem to the desired setting.

5.Move the jumper shunt to the new setting.

∙The COM port setting can involve one to three shunts. The four possible COM port settings are as follows:

∙Unlike most COM port settings, the IRQ setting involves only one jumper shunt. Simply move the jumper shunt to the pins labelled with the IRQ you need.

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 Control Panel Determining Available ResourcesWindows 95 version Determining Your Version of WindowsClick Properties How to Prepare for Plug and Play Installation Plug and Play InstallationSerial Number How to Insert the Modem into the ComputerPage Page Page Page Moving Through the New Hardware Found Screens Installing Modem Drivers With Windows Versions 950 and 950aPage COM Port Click More Info… Using the Update Device Driver Wizard Screens Installing Modem Drivers With Windows Version 950bPage 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 Windows Software InstallationFlow Control Type of ModemInitialisation String Read This First Possible SolutionTroubleshooting Possible Solution Possible Solution Possible Solution Troubleshooting Possible Solution Support Resources Support Resources Are You Still Having Problems?Answer mode Analogue signalsAnalogue loopback ApplicationGlossary Baud rate Glossary Auto dialBinary digit bit Bit rateGlossary Character Data modeCharacters per second CPS Class 1Detect phase DefaultDigital signals GlossaryFax mode Glossary Error controlFacsimile Flow controlModem Local echoNonvolatile memory Nvram OFF/ON hookGlossary Online fallback/fall forward Originate modeParity ProtocolSerial transmission Terminal modeStart/stop bits Terminal27ter 22 bis32 bis See online fall back/fall forwardXmodem 42 bisYmodem Ymodem GTechnical Reference ITU-T answer sequence Technical ReferenceDials the specified phone number, includes the following En Sets local echoTechnical Reference Hn Controls ON/OFF hook Ln Controls speaker volume internals onlyDisplays the following information Mn Operates speakerVerbal codes Numeric codes11/RINGING Technical Reference Sets result code displayed, default isTechnical Reference Displays a list of ampersand & commands Resets modemAn Enables/disables additional result code subsets see Xn Cn Controls Carrier Detect CD signalKn Enables/disables data compression Fn Loads a read-only non-programmable factory configurationSets 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 Yn Sets break handling Wn Writes current configuration to Nvram templates64 56K Voice Faxmodem Internal User’s Guide Registers Register Default FunctionBit Value Result Default FunctionS13 Technical Reference Register Default FunctionTimer S27 See the instructions for S13 S34 Bit +FCLASS=n Sets the mode of operation Fax CommandsDisplayed As a number Words Description +FTH=n+FRH=n CE Compliance RegulatoryLimited Warranty