
2 • Introduction
1.2 Applications
l Programmable mixed digital input & output
l Industrial monitoring and control
l Digital I/O control
l Contact closure, switch/keyboard monitoring
l Connects with OPTO-22 compatible modules
l Useful with A/D and D/A to implement a data acquisition & control
system
1.3 Specifications
I/O channels 24
Input Signal Logic High Voltage :2.0 V to 5.25V
Logic Low Voltage : 0.0 V to 0.80V
Logic High Current : 20.0 uA
Logic Low Current : -0.2 mA
Output Signal Logic High Voltage : Minimum 2.4 V
Logic Low Voltage : Maximum 0.5V
Logic High Current : -15.0 mA
Logic Low Current : 24.0 mA
Operating Temperature
0° ~ 60° C
Storage Temperature
-20° ~ 80° C
Humidity 5% ~ 95% non-condensing
I/O Connector 50-pin male ribbon cable connector
Bus PC/XT Bus
IRQ Level IRQ2 ~ IRQ7
I/O port address 4 bytes(Hex 200 ~ Hex 3FF)
Power Consumption 0.5A @5VDC ( Typical)
0.8A @5VDC ( Maximum)
Transfer Rate 300 K bytes/sec (Typical)
500 K bytes/sec (Maximum)
Dimension (108 mm X 107mm)
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