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128 bi-directional opto-isolated I/O pins with common input/output functionality — each pin can be used as input or output without rewiring. 24VDC, 200 µs response, interrupt on 16 inputs, digital filter, overcurrent protection, and USB hub function. Windows/Linux drivers.
The DIO-128SLX-USB provides 128 opto-coupler isolated I/O pins where each pin can function as either an input or output without changing wiring. Common terminals per 16 channels allow different external power supplies. Inputs are compatible with current sink outputs; outputs are open-collector (current sink type). 24VDC external power is required.
Bi-directional design: Each I/O pin can be used as input or output without changing wiring — ideal for flexible system configurations.
Built-in USB hub allows up to 4 units to be connected to a single USB port. Windows and Linux drivers (API-DIO) provide digital I/O control with sample programs for C#, Visual Basic .NET, Visual C++, Python, and gcc. A diagnostic program is included.
| Specification | Detail |
|---|---|
| I/O type | Opto-isolated (current sink), bi-directional pins |
| I/O channels | 128 (common input/output per pin) |
| I/O voltage | 24VDC (external power required) |
| Output current | 100mA per channel (max) |
| Residual voltage | ≤0.5V at 50mA, ≤1.0V at 100mA |
| Overcurrent protection | Per 8-channel group |
| Interrupts | 16 input signals (bit-selectable) |
| Response time | 200 µs (max) |
| USB spec | USB 2.0/1.1, Full/High speed |
| Power supply | Self-power (5VDC, AC adapter included) |
| Current consumption | 5VDC 830mA (Max.) |
| Connector | 100-pin 0.8mm pitch (2 × CNA/CNB) |
| Dimensions (mm) | 180(W) × 140(D) × 34(H) |
| Weight | 400 g (excluding cable and attachments) |
| Operating temperature | 0 – 40°C |
| Humidity | 10 – 90%RH (no condensation) |
| Certifications | VCCI Class A, CE (EMC Class A, RoHS), UKCA |
Uses two 100-pin 0.8mm pitch connectors (CNA and CNB). I/O pins are organized in 16-channel groups with dedicated positive and negative commons. Multiple negative common pins are provided to handle total current requirements.
| Part Number | Description | Notes |
|---|---|---|
| PCB100PS-0.5 | Shielded cable, 100-pin both ends, 0.5m | Shielded cables for 100-pin connector |
| PCB100PS-1.5 | Shielded cable, 100-pin both ends, 1.5m | |
| PCB100PS-3 | Shielded cable, 100-pin both ends, 3m | |
| PCB100PS-5 | Shielded cable, 100-pin both ends, 5m | |
| PCB100/96PS-1.5 | Conversion cable (100P → 96P), 1.5m | Conversion cables |
| PCB100/96PS-3 | Conversion cable (100P → 96P), 3m | |
| PCB100WS-1.5 | Conversion cable (100P → 37P ×2), 1.5m | Conversion to 37-pin D-SUB |
| PCB100WS-3 | Conversion cable (100P → 37P ×2), 3m | |
| EPD-100A | Screw terminal (M3 × 100, spring-up) | Terminal accessory (cable required) |
| CCB-96 | Connector conversion board (96-pin → 37-pin ×2) | Cable required separately |
| BRK-USB-X | USB I/O Unit Bracket for X Series | Mounting bracket |
The DIO-128SLX-USB is available through Contec Americas on a quote basis. Contact our sales team to discuss quantity, accessories, and integration with your application.
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