
Contec Americas Inc. / Digital Input/Output
DIO-1616HN-USB Digital I/O USB I/O unit 16ch/16ch (isolated 5 - 50VDC) - the N series
Contact Sales Department for Pricing New DIO-1616HN-USB 16 Isolated Inputs 16 Isolated Outputs 5‑50VDC USB Isolated Internal Input Power VCCI-A · FCC-A · CE · UKCA 16 opto‑isolated inputs (current sink compatible) and 16 opto‑isolated open‑collector outputs (current...
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16 opto‑isolated inputs (current sink compatible) and 16 opto‑isolated open‑collector outputs (current sink type) in a compact USB unit. 5‑50 VDC operation, 200 µs response. Internal power for inputs — no external supply needed for input section. Outputs support 100 mA per channel with surge and overcurrent protection.
Isolated USB I/O
with Internal Input Power
The DIO‑1616HN‑USB provides 16 opto‑isolated inputs (current sink compatible) and 16 opto‑isolated open‑collector outputs (current sink type) in a compact USB 2.0 unit. Inputs are internally powered (5 VDC) — no external supply needed for input section. Outputs require an external 5‑50 VDC supply and support 100 mA per channel.
- 16 channels, opto-isolated
- Current sink compatible
- 5‑50 VDC external signal
- Internal power for opto-couplers
- 1 common per 16 channels
- 16 channels, open-collector
- Current sink type
- 60 VDC max, 100 mA per channel
- Zener diode surge protection
- Overcurrent protector (8 ch/group)
Internal power for inputs — no external power supply needed for the input section. Outputs require external 5‑50 VDC supply. Common terminals: inputs share 1 common; outputs share 1 common per 8 channels.
Built for Industrial Applications
- Opto‑isolated bus — 500 Vrms isolation between USB and I/O interfaces, excellent noise immunity.
- Internal input power — opto‑couplers powered internally; no external supply needed for inputs.
- Surge protection — zener diode (RD68FM or equivalent) on each output transistor.
- Overcurrent protection — per 8 output channels; temporarily disables outputs when triggered.
- Compact design — 188.0(W) × 78.0(D) × 30.5(H) mm; screw, magnet, DIN rail, or floor/wall mounting.
- USB 2.0/1.1 — High Speed (480 Mbps) and Full Speed (12 Mbps) compatible.
Full Specifications
| Item | Specification |
|---|---|
| Model | DIO‑1616HN‑USB |
| Input type | Opto‑isolated (current sink compatible), negative logic |
| Input channels | 16 (1 common) |
| Input resistance | 560 Ω |
| Input ON current | 1.15 mA min |
| Input OFF current | 0.16 mA max |
| Input response time | 200 µs max |
| Output type | Opto‑isolated open‑collector (current sink type), negative logic |
| Output channels | 16 (8 channels share 1 common) |
| Output voltage rating | 60 VDC max |
| Output current (ON) | 100 mA per channel max |
| Residual voltage (ON) | ≤0.5V at 50mA; ≤1.0V at ≤100mA |
| Surge protector | Zener diode RD68FM or equivalent |
| Output response time | 200 µs max |
| USB bus specification | USB Specification 2.0/1.1 compliant |
| USB transfer rate | 12 Mbps (Full-speed), 480 Mbps (High-speed) |
| Power supply | Bus power |
| External circuit power supply | 5‑50 VDC ±10% (for outputs) |
| Current consumption | 5 VDC, 300 mA max |
| Isolation voltage | 500 Vrms |
| Connector | European type terminal 3.5mm pitch 10‑pin |
| Connecting distance | Approx. 50 m (depending on wiring) |
| Dimensions (W × D × H) | 188.0 × 78.0 × 30.5 mm |
| Weight | 300 g (excluding cables, attachments) |
| Operating temperature | – |
| Certifications | VCCI Class A, FCC Class A, CE (EMC Class A, RoHS), UKCA |
Connector & Cabling
The unit uses two 10‑pin terminal connectors (3.5mm pitch). The supplied plug connectors mate with the board‑mounted jacks. Compatible wire: AWG28‑16. The USB connection uses a standard USB Mini B connector with included 1.8m cable.
- Input connector — 10‑pin plug, signal pins I0‑0 to I0‑7, common pin, and NC.
- Output connector — 10‑pin plug, signal pins O1‑0 to O1‑7, common pins (2 per 8 channels), and NC.
- Wiring — use European type terminal connectors (included). Do not remove by pulling cable.
- Included accessories — USB cable (1.8m), interface connectors (4), rubber feet (4), magnets (2), USB cable attachment.
Certifications & Compliance
- VCCI Class A — Japanese EMC for commercial/industrial environments.
- FCC Class A — U.S. emissions compliance for industrial use.
- CE (EMC Directive Class A + RoHS) — European conformity.
- UKCA — UK conformity assessed.
Optional Accessories
| Part Number | Description |
|---|---|
| – | Consult Contec website for available cables and accessories |
Software & Packing List
| Item | Description |
|---|---|
| Windows driver | API‑DIO(WDM) – Win32 API, samples (C#, VB.NET, VC++, Python), diagnostic tool |
| Linux driver | API‑DIO(LNX) – shared library, gcc (C/C++) and Python samples, config tool |
| SDK & support | Additional software tools available for download |
| Packing List | Product ×1, interface connectors ×4, USB cable attachment ×1, rubber feet ×4, USB cable (1.8m) ×1, magnets ×2, "Please read the following" document |
Ready to add isolated USB digital I/O?
The DIO‑1616HN‑USB is available through Contec Americas on a quote basis. Contact our sales team for volume pricing, cable assemblies, and integration support.
Taxes and shipping calculated at checkout.
Lead times may vary for products shipped from Japan:
Products sourced from Japan may take between 4 to 5 weeks to arrive. We will provide updated shipping timelines upon order confirmation.
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