• USB 8 Opto In + 8 Relay Card
• Special Features: Input edge detection ( 8 Flipflops through software readable ), Timeout detection ( switches all outputs off if software hangs ), IRQ on change of input signal
• Fast and precise recording and processing of switching events
• 16 LED´s for optical function control of all in- and output signals
• Simple assembly in a rack, as a standalone equipment in the laboratory area or as a mobile equipment for a notebook
• External power supply of 12 V possible
• Up to 7 USBOPTOREL8 supported
• CD contains drivers for Windows XP / 2000 / ME / 98 / 95 / Linux
• Samples for .NET, Visual Basic, Visual-C/C++, Borland Delphi, Borland Builder, Labview, Sun Java, Agilent VEE, LabWindows/CVI and Linux 2.4.x & 2.6.x Kernel

The QUANCOM® USBOPTOREL8 board has 8 opto inputs and 8 relays and is designed for industrial purposes. The relays are able to switch up to 3A / 90W. To switch higher capacity and voltage exernal relays are necessary. This is for example our QUANCOM® MODSSR230 for 230V.
 Connection examples for optocoupplers and relays

Optocouplers protecting all inputs up to 500 Volts
Your personal computer is protected against damage by galvanic isolationin in case of overvoltage. These optocouplers are designed as alternating current optocouplers which means that you can choose the polarity of input signals optionally. You can also adapt the input voltage range individually by a pluggable resistor network. Feel free to tell us your special requests concerning the input voltage range in your order.

Input edge detection
The 16 inputs are equiped with input flip flops which detect quick input state changes or remove switch bounce. This allows the detection of fast input changes. It is also possible to generate an interrupt if an input changes.
 Flip-Flop Explanation drawing

Timeout control
The board has a configurable onboard timeout control which detects all processes to the USBOPTOREL8 USB module. If the software hangs and the board isn't controlled by the personal computer the outputs are switched off. Think about a heating which overheats because the PC is "to busy" to switch the heating off. You may setup the timeout period from 1ms to 16 hours in different steps. This feature can be switched off by a software command.
 Timeout controll explanation

Software library

VB USBOPTOREL8 example
The USBOPTOREL8 example shows the programming with Visual Basic

You don't nedd any knowledge in the driver development. We implemented a command set which is usable for all operating systems. An application that controls the USBOPTOREL8, and which is generated for Windows 98 can be used directly on a Windows XP PC.

With QLIB it is easy to create applications with Visual-Studio .NET, Visual-Basic, Borland Delphi or other modern compilers. Even an interface to MS Excel, MS Access or Sun Java is available.

The QLIB is an API which provides its functions through a Windows DLL, so it is possible to use QLIB with all applications that allow access to external DLL functions.

Technical Data

Included drivers

• Visual-Studio VB .NET
• Visual-Studio C# .NET
• Visual C++
• Visual Basic
• Borland C++ Builder
• Borland Delphi
• Sun Java

• Agilent VEE
• LabView

• MS Excel
• MS Access

Included Programs

Available accessories