AXIOMTEK IPC972, User Manual

Page: 36 / 94

IPC972 Series U
ser’s Manual
28 Introduction
Digital I/O Specification (per port)
⚫
Isolated Digital Input
The figure shows how to connect between external input source and the system.
Each of the isolated digital input channels accepts 0~30 VDC with sink type and
source type.
⚫
Isolated Digital Output
The figure shows how to connect between an output channel and the system.
If an external 5~30 VDC voltage is applied to an isolated output channel, the
current will flow from the external voltage source to the system.
Please note that the current through each DO channel should not exceed 200 mA.