DB-24P/DIN CR
24-ch OPTO-Isolated Input Board with DIN-rail Mounting
- Optically isolated digital input channels
- Connects directly to DIO24,DIO48,DIO144 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
The DB-24P is a 24 channel isolated digital input daughter board for DIO24,DIO48,DIO144 ,PIO-D144,OPTO-22 Compatible digital input board or any 722,724, digital input board . The optically isolated inputs of the DB-24P consist of a bi-directional opto-couple with a resistor for current sensing . You can use the DB-24P to sense DC signal from TTL levels up to 24V. You can also use DB-24P to sense a wide range of AC signals. The DB-24 P 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.
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
Digital Logic Level:
Input low voltage (DC or peak AC):
Minimum: 0
Maximum: +/-1V
Input high voltage DC /1kHz AC:
Minimum: +/-2.8VDC, 4Vrms
Maximum: +/-24VDC, 24VAC
Input impedance: 1.2k
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