User Manual

INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X
10
• Refer to your computer manufacturer’s
manual to find out which socket is COM1
and which is COM2.
• If nothing is plugged into either port, you
can 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, use that port for your modem. Your
computer manufacturer’s manual will tell
you how to disable that COM port. Note if
the port is COM1 or COM2.
• 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. Go to “How to
Change the Modem’s Settings.”
If you’ve disabled COM2, you can now use
the COM2/IRQ3 setting. Write the setting
down somewhere.
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