Advantech ARK-2121F-U0A1E User Manual page 27

2.3.1.9 DIO Connector
ARK-2121F offers 8 PIN Isolated DIO and 2 PIN Ground.
Type: 0~3 PIN; DI; 4~7 PIN DO: 8~9 PIN Ground
Input Voltage: 0 to 30 VDC at 25 Hz
*Isolation level: 3kV
Digital Output levels: for Wet contacts:
Logic Level 1: Close to GND
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Logic Level 0: Open
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Digital Input Levels: for Wet contacts:
Logic level 0: +3 V max.
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Logic level 1: +5 V to +30V
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Output Current: Max. 50 mA per channel
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