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Diamond Point International

Contec DIO-0808LY-USB - Isolated Digital I/O Terminal for USB2.0

Eight Channel Opto-Isolated Inputs, Eight Channel Opto-Isolated Outputs


Contec's DIO-0808LY-USB is a USB 2.0-compatible digital I/O terminal, which can be connected to a USB interface of a PC to input and output digital signals (12 - 24 VDC) easily. Input up to eight channels and also output up to eight channels. Using bundled driver library [API-USBP(WDM)], you can create Windows application software for this terminal in your favorite programming language supporting Win32 API functions, such as Visual Basic or Visual C++. A LabVIEW library is also available.

  • Eight channel opto-isolated input, eight channel opto-isolated output (output rating: up to 35VDC/100mA per channel).
  • Compliant with USB2.0/USB1.1 specifications and capable of a high-speed transfer (480Mbps)
  • As the USB (PC) is isolated from the input and output interfaces by opto-couplers, this product has excellent noise performance.
  • Output circuits include zener diodes for surge voltage protection and poly-switches for overcurrent protection.
  • Adoption of terminal connector (with screws) enables to achieve easy wiring.


Digital I/O/Counter/Timers

I/Os8 opto-isolated inputs
8 opto-isolated outputs
InputsOpto-isolated input (Compatible with current sink output) (Negative logic)
Input resistance: 4.7 kOhms
Input ON current: 2.0mA or more
Input OFF current: 0.16mA or less
Response time: 300 microsecs
OutputsOpto-isolated open collector output (current sink type) (Negative logic)
Output voltage: 35VDC (Max.)
Output current: 100mA (per point) (Max.)
Residual voltage with output on:
• 0.5V or less (Output current <50mA),
• 1.0V or less (Output current <100mA)
Surge protector: Zener diode RD47FM(NEC) or equivalent
Response time: 300 microsecs
Connectors(s)14 pin (screw-terminal) plug header


ExpansionUSB specification 2.0/1.1 standard
Electrical5VDC 250mA
Bus powered
MechanicalConnector: 14 pin (screw-terminal) plug header
Size: 64(W) x 62(D) x 24(H) mm (exclusive of protrusions)
Cable: USB cable 1.8m, included
SoftwareWindows: Win32 API (Visual C# .Net, Visual Basic .Net, Visual C++ .Net examples), 32 or 64 bit architecture
OS Support:
• Windows 2000 (32 bit only)
• Windows XP, Vista, Server 2008, 7, 8, 8.1 (all 32 and 64 bit)
Data acquisition VI library for LabVIEW (VI-DAQ)
TemperatureTemperature range (operation): 0 to +50°C
Humidity10 - 90%RH (No condensation)
Weight70g (Not including the USB cable, attachment)
Safety/CertificationFCC, VCCI
Warranty1 Year

Ordering Details

DIO-0808LY-USB Isolated Digital I/O Terminal
AccessoriesBRK-USB-Y Bracket for USB I/O Terminal products
CN6-Y14 14 pin Terminal connector(screw type) 6/set
VI-DAQ VI Library of data acquisition for LabVIEW (free download)