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DIO-1616LN-USB N Series for USB. Isolated Digital I/O Unit (16ch DI, 16ch DO)
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USB 2.0 isolated digital I/O unit with 16 opto-coupler inputs (compatible with current sink and current source) and 16 opto-coupler open-collector outputs (current sink). 200 µs response, interrupt on 8 inputs, digital filter, and surge/overcurrent protection. Bus power or 12–24VDC external power. DIN rail mount.
The DIO-1616LN-USB provides 16 opto-coupler isolated inputs (compatible with current sink and current source outputs) and 16 opto-coupler isolated open-collector outputs (current sink type). Common terminals are provided per 8 channels, allowing different external power supplies. Input status can be monitored via LED indicators.
Isolation: USB (PC) is isolated from I/O interfaces by opto-couplers, providing excellent noise immunity. Isolation voltage: 1000 Vrms.
Operates via USB bus power (no external supply needed) or with 12–24VDC external power for battery saving or use with non-powered hubs. Compact design (188.0(W) × 78.0(D) × 30.5(H) mm) supports DIN rail, screw fastening, or magnet mounting (option).
| Specification | Detail |
|---|---|
| Input type | Opto-isolated (compatible with sink/source), negative logic |
| Input channels | 16 (8 channels available for interrupts) |
| Input resistance | 15 kΩ |
| Input ON current | 0.7 mA or more |
| Input OFF current | 0.15 mA or less |
| Interrupts | 8 signals → single INTA, rising/falling edge selectable |
| Response time | 200 µs (max) |
| Output type | Opto-isolated open collector (current sink), negative logic |
| Output channels | 16 (8 channels share 1 common) |
| Output rating | 60VDC (max), 100mA per channel |
| Residual voltage | ≤0.5V at 50mA, ≤1.0V at 100mA |
| Surge protector | Zener diode CMZB68 or equivalent |
| Overcurrent protection | Per 8-channel group |
| USB spec | USB 2.0/1.1, Full-speed (12Mbps) / High-speed (480Mbps) |
| Power supply | Bus power or self-powered (12–24VDC ±10%) |
| Current consumption | 12VDC 200mA / 24VDC 100mA |
| Isolation voltage | 1000 Vrms |
| Dimensions (mm) | 188.0(W) × 78.0(D) × 30.5(H) |
| Weight | 300 g |
| Operating temperature | 0 – 60°C |
| Humidity | 10 – 90%RH (no condensation) |
| Certifications | VCCI Class A, CE (EMC Class A, RoHS), UKCA |
Uses supplied 10-pin screw terminal connectors. Input and output signals are arranged in 8-channel groups with dedicated commons for flexible wiring.
| Part Number | Description | Notes |
|---|---|---|
| POA201-10-2 | AC-DC Power Adapter (12VDC, 1A) | External power supply |
| CPS-MAG01-4 | CONPROSYS Series Magnet (Four Piece Set) | Magnetic mounting |
The DIO-1616LN-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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