Omega Products OME-DB-24P User Manual
24-Channel OPTO-Isolated Input
Board OME-DB-24P/OME-DB-24PD
$
169
Basic Unit
⻬ Optically Isolated
Digital Input Channels
⻬ Connects Directly to
OME-PIO-D144
⻬ AC/DC Signal Input
⻬ AC Signal Input
with Filter
⻬ Input Buffer with
Voltage Comparators
⻬ Isolated Digital Input
Sensing
The OME-DB-24P is a 24 channel
isolated digital input daughter board
for OME-PIO-D144 digital input
board. The optically isolated inputs
of the OME-DB-24P consist of a bidirectional opto-couples with a
resistor for current sensing. You can
use the OME-DB-24P to sense DC
signals from TTL levels up to 24 V.
You can also use OME-DB-24P to
sense a wide range of AC signals.
The OME-DB-24P registers a
constant logic high if the frequency
of the input AC signal is greater or
equal to 1 kHz, and if the voltage of
the AC signal is at least 4 Vrms. If
you are using an AC input signal,
you must short the AC filter jumper.
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.
Specifications
I/O CONNECTOR ELECTRICAL
SPECIFICATIONS
Configuration: 24 optically isolated
digital input channels
Compatibility: TTL compatible
Connector: OME-DB-24P, one
50-pin header; OME-DB-24PD,
one 50-pin header and one 37-pin
D-sub connector
DIGITAL INPUT
Number of channels: 24, each with
its own ground reference isolated
from other channels
Maximum Input Voltage:
24 Vdc or 24 Vac
Input Impedance: 1.2 K
SOURCE CURRENT
5 V inputs: 4 mA per
channel (min)
24 V inputs: 20 mA per
channel (min)
Response Time: 20 µs
without filter/2.2 ms with filter
Power Supplies:
+5 V @ 336 mA max
Dimensions:
132 H x 220 mm W
(5.2 x 8.7")
Operating Temperature:
0 to 60°C (32 to 140°F)
Storage Temperature:
-20 to 70°C (-4 to 175°F)
Humidity: 5 to 90%
RH non-condensing
Level Minimum Maximum
Input low voltage 0 ±1 V
(DC or peak AC)
Input high voltage ±2.8 Vdc ±24 Vdc
DC/KHz AC 4 Vrms 24 Vac
OME-DB-24P &
OME-DB-24PD
shown smaller
than actual size
Digital Logic Level
Each board is supplied with complete operator’s manual on CD ROM.
Ordering Example: OME-DB-24P
24-channel OPTO-22 compatible opto-isolated input board
and OMEGACARESM1 year extended warranty for OME-DB-24P (adds 1 year to standard
1 year warranty), $169 + 25 = $194.
To Order
(Specify Model Number)
Model Number Price Description
OME-DB-24P $169 24-channel OPTO-22 compatible opto-isolated
input board, includes 1.5 m (5') 50-pin flat cable
OME-DB-24P/DIN 179 OME-DB-24P with DIN-Rail mounting kit
OME-DB-24PD 169 24-channel OPTO-22 compatible opto-isolated
input board with D-Sub 37 connector,
includes 1 m (3') 37-pin D-sub connector cable
OME-DB-24PD/DIN 179 OME-DB-24PD with DIN-Rail mounting kit
OME-CA-5015 30 50-pin flat cable, 1.5 m (5')
OME-CA-3720 59 37-pin male-male D-sub connector cable 2 m (7')
OME-CA-3710 49 37-pin male-male D-sub connector cable 1 m (3')
MOST POPULAR MODEL HIGHLIGHTED!
OMEGACARESMextended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
SM
covers parts, labor and equivalent loaners
H-1
Extended Warranty
Program
SM
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
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