I/O LED Indicators

Near each of the 13 3-pin I/O terminal blocks there is an LED that will indicate the state of that connector.

I/O LED States

Off: Connector is in the logic FALSE state.
On: Connector is in the logic TRUE state.
PWM Modulated: The LED is dimmed to reflect the analog or PWM value on the connector.
Strobed: There is an overload condition.