Advantech MIC-1810 User Manual page 27

Single-ended Channel Connections
Single-ended connections use only one signal wire per channel. The voltage on the
line references to the common ground on the card. A signal source without a local
ground is called a "floating" source. It is fairly simple to connect a single ended chan-
nel to a floating signal source. A standard wiring diagram looks like this:
Figure 3.6 Single-ended input channel connections
When to use single-ended channel connections?
Single-ended connections are only used for the following conditions:
All input signals that can share a common reference point, AGND.

The wires connecting the signal to the device are less than 3 m.

19 MIC-1810 User Manual