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MODEM INSTALLATION WITH WINDOWS 3.X
10
• Find out which socket is COM1 and which
is COM2.
• If nothing is plugged into either port, you
may choose either of the ports to disable.
Your computer manufacturer’s manual will
tell you how to disable the COM port.
• If one port does not have anything plugged
into it, note if the port is COM1 or COM2.
This is the port you’ll want to disable for
your modem.
• If both ports are being used, you may be
able to attach one of the plugged-in
accessories elsewhere so that you can
disable its COM port. The accessory will
not work once its port is disabled.
If you’ve disabled COM1, you can now use
the COM1/IRQ4 setting. Write it down
somewhere where it will be handy during
software installation. Go to “How to Change
the Modem’s Settings” (on this page).
If you’ve disabled COM2, you can now use
the COM2/IRQ3 setting. Write the setting
down somewhere where it will be handy during
software installation.
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. Then take the
modem out of its plastic bag.
2. Find the COM and IRQ jumper shunts
(small black plastic pieces) on your