Half-size CPU Card HSB-668I
Chapter 2 Quick Installation Guide
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2.4 List of Jumpers
The board has a number of jumpers that allow you to configure your
system to suit your application.
The table below shows the function of each of the board's jumpers:
Jumpers
Label Function
JP1 COM2 Pin 9 Function Selection
JP2 Clear CMOS
JP3 LCD Voltage Selection