Description
The DB-24P is a 24 channel isolated digital input daughter board for the PIO-Dxx range of OPTO-22 Compatible digital input boards or any 722,724 digital input board .
The optically isolated inputs of the DB-24P consist of a bi-directional opto-coupler with a resistor for current sensing . You can use the DB-24P to sense a DC signal from TTL levels up to 24V. You can also use DB-24P to sense a wide range of AC signals. The 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 4Vrms. If you are using 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.
Includes : CA-5015 (50-pin Flat Cable 1.5m)
Features
- Optically isolated digital input channels
- Connects directly to PIO-Dxx series OPTO-22 compatible digital input card or any 722,724 OPTO-22 compatible digital input board.
- AC/DC Signal Input
- AC Signal Input with filter
- Input buffer with voltage comparators
- Isolated digital input sensing
Specifications
- I/O connector Electrical Specifications
- Configuration : 24 optically isolated digital input channels
- Compatibility : TTL compatible
- Digital Input
- Number of channels : 24,each with its own ground reference isolated from other channels
- Maximum input voltage :24 VDC or 24 VAC
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Digital Logic Level
LEVEL Minimum Maximum Input low voltage (DC or peak AC) 0 +/-1V Input high voltage DC /1kHz AC +/-2.8VDC, 4Vrms +/-24VDC, 24VAC - Input impedance : 1.2k
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Source Current:
5V inputs : 4mA/channel minimum
24V inputs : 20mA/channel minimum - Response Time :20us without filter / 2.2ms with filter
- Power Supplies : +5v :336mA /maximum
- Board Dimension : 213mm x 132mm
- Operating Temperature : 0 -60°C
- Storage Temperature : -20~70°C
- Humidity : 5% to 90 % noncondensing