Advantech AIIS-1882 User Manual page 7

Safety Precautions - Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage.
To avoid electrical shock, always disconnect the power from the PC chassis

before manual handling. Do not touch any components on the CPU card or
other cards while the PC is powered on.
Disconnect the power before making any configuration changes. A sudden rush

of power after connecting a jumper or installing a card may damage sensitive
electronic components.
AIIS-1882
vii User Manual