Measurement Computing PointScan 300 Series rev.1.0 - Manual (Page 20)

4-4 Discrete Input Modules 8-23-01 PointScan/300 User’s Manual
PointScan/322
High density Input Module
This high density discrete input module has 16 channels that accept inputs from 10 to 32 volts DC. Connect
your input signals to terminals 1 through 16. Connect the return from your DC power source to terminal 18.
You will need to externally distribute the (+) DC power to your field devices.