US Robotics Sportster Operating Instructions Manual page 17

The jumper shunts will be hanging from
single jumper pins as shown in the following
illustration.
I M I
NTERNAL ODEM NSTALLATION WITH
W 3.
INDOWS X
3. 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.
TIP:
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.
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