Omega OME-PIO-D144 - Manual (Page 17)

2.6.5 OME-DB-24P/24PD Isolated Input Board
The OME-DB-24P is a 24 channel isolated digital input daughter board. The optically
isolated inputs of the OME-DB-24P consist of a bi-directional opto-coupler with a resistor
for current sensing. You can use the OME-DB-24P to sense DC signal from TTL levels up
to 24V or use the OME-DB-24P to sense a wide range of AC signals. You can use this
board to isolate the computer from large common-mode voltage, ground loops and
transient voltage spike that often occur in industrial environments.
V+
V-
OME-PIO-D144
OME-PIO-D144
50-Pin cable
CN6 CN2
Opto-Isolated
OME-DB-24P
AC or DC Signal
0V to 24V
OME-DB-24P
OME-DB-24PD
50-pin flat-cable header Yes Yes
D-sub 37-pin header No Yes
Other specifications Same
OME-PIO-D144 User’s Manual (Ver.2.1, Sep/2001) ----- 15