AXIOMTEK IPC960-525 Series User Manual page 39

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 voltage 5~30 VDC 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.
Introduction
IPC960/IPC962/IPC964-525 Series User's Manual
31