3Com 005605-00 Manual

Contents

INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X10What to Do with ComTest’sRecommendationNOTE: If your communicationssoftware requires a modem setting thatComTest does not recommend, there isa good chance that the setting is beingused by another device in your system.To free that setting in your system,consult your computer’s manual. Go to“How to Change the Modem’s Settings”on page 12.If ComTest recommended COM3/IRQ4or COM4/IRQ3Do not use either of these settings. While theCOM port part of the setting is acceptable(ComTest only recommends COM ports thatare not being used), the IRQ part of the settingis not acceptable. When ComTestrecommends either COM3/IRQ4 orCOM4/IRQ3, the IRQ in the setting is beingused by another accessory. You could use thesuggested IRQ for the modem, but you run therisk that the modem and/or the other accessorysharing the IRQ might not work properly.If you do not have a sound card, useCOM3/IRQ5. Write “COM3” and “IRQ5”where it will be convenient during thesoftware installation. You will have to changethe settings on your modem. Go to “How toChange the Modem’s Settings” on page 12.If you do have a sound card, useCOM2/IRQ3. To use this setting, you have tofirst disable your computer’s second serial port(COM2). This is a pronged socket on theback of your computer.• Go to your computer manufacturer’smanual.