Further information for Advantech ADAM-4055-BE -
The ADAM-4055 features 8-channel digital isolated inputs and 8-channel digital isolated outputs for safety-related applications. The inputs can accept a voltage of 10 - 50 V, the outputs deliver 5 - 40 VDC on the open collector. The
I/O type: 8 DO/DI
Input voltage: 10 - 50 VDC
Open collector to 40 VDC
Surge protection: 70 VDC
2,500 VDC optically isolated