INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X10• Refer to your computer manufacturer’smanual to find out which socket is COM1and which is COM2.• If nothing is plugged into either port, youcan choose either of the ports to disable.Your computer manufacturer’s manual willtell you how to disable the COM port.• If one port does not have anything pluggedinto it, use that port for your modem. Yourcomputer manufacturer’s manual will tellyou how to disable that COM port. Note ifthe port is COM1 or COM2.• If both ports are being used, you may beable to attach one of the plugged-inaccessories elsewhere so that you candisable its COM port. The accessory willnot work once its port is disabled.If you’ve disabled COM1, you can now usethe COM1/IRQ4 setting. Go to “How toChange the Modem’s Settings.”If you’ve disabled COM2, you can now usethe COM2/IRQ3 setting. Write the settingdown somewhere.How to Changethe Modem’s Settings1. Always touch an unpainted metal part ofyour computer (the back is usuallyunpainted) to discharge static electricitybefore handling the modem. Static candamage 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
