Advantech IPPC-6152A User Manual page 52

 Digital I/O Configuration
The default configuration for the Digital I/O Pins is [Input]. Users can set these
items as [Output High] or [Output Low] according to their usage requirements.
Smart Fan Function

The default configuration is [Enabled].
 Smart Fan Mode Configuration
This item is used to configure the CPU fan and system fan mode.
IPPC-6152A/6172A/6192A User Manual 44