27
GETTING TO KNOW YOUR MTC-2021
2.4 Jumper Setting
You may configure your card to match the needs of your application by setting
jumpers. A jumper is a metal bridge used to close an electric circuit. It consists
of two metal pins and a small metal clip (often protected by a plastic cover) that
slides over the pins to connect them. To “close” a jumper, you connect the pins
with the clip. To “open” a jumper, you remove the clip. Sometimes a jumper will
have three pins, labeled Pin 1, Pin 2 and Pin 3. In this case you would connect
either Pin 1 and Pin 2, or Pin 2 and Pin 3.
The figure below is the top view of the MTC-2021 mainboard. It shows the
location of all jumpers.
