The OME-DB-16P is a 16 channel
isolated digital input daughter board.
The optically isolated inputs
of the OME-DB-16P consist of
a bi-directional OPTO-coupler
with a resistor for current sensing.
You can use the OME-DB-16P to
sense DC signals from TTL levels
up to 24V. You can also use
OME-DB-16P to sense a wide
range of AC signals. You can use
the board to isolate the computer
from large common-mode
voltages, ground loops and
voltage spikes that often
occur in industrial environments.