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US Robotics Sportster 56K Modem Jumpers

Caution Only authorized service personnel should install hardware. Anyone who wants to install hardware themselves should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.

The default setting for COM Ports and IRQ jumpers is open, (PnP mode) as shown below.

Jumpers
US Robotics Sportster Jumpers

Jumper Locations