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USB
Interface/Experiment Board Kit or Assembled Unit
The K8055 usb interface board has 5 digital input channels and 8 digital output channels. In addition, there are two analogue inputs and two analogue outputs with 8 bit resolution. The number of inputs/outputs can be further expanded by connecting more (up to a maximum of four) cards to the PC's USB connectors. All communication routines are contained in a Dynamic Link Library (DLL). You may write custom Windows (98SE, 2000, Me, XP) applications in Delphi, Visual Basic, C++ Builder or any other 32-bit Windows application development tool that supports calls to a DLL.
Specifications Hardware:
- power supply through USB: approx. 70mA
- 5 digital inputs (0= ground, 1= open) (on board test buttons provided)
- 2 analog inputs with attenuation and amplification option (internal test +5V provided)
- 8 digital open collector output switches (max. 50V/100mA) (on board LED indication)
- 2 analog outputs:
- 0 to 5V, output resistance 1K5
- PWM 0 to 100% open collector outputs max 100mA / 40V (on board LED indication)
- general conversion time: 20ms per command
- dimensions: 5.7" x 3." x 0.8"
Specifications Software:
- separate output / input test
- clear all / set all function
- counter function on inputs 1 and 2 with adjustable debounce (max 2kHz depends on total I/O load)
- analog output set sliders
- analog input bar-graph indication
- minimum system requirements:
Pentium class CPU
USB1.0 or higher connection
Windows 98SE or higher (Win NT excluded)
CD ROM
See
VEK8055users.pdf for
hardware details,
including schematic and theory of operation. See
VEK8055software.pdf
for software details. Requires Adobe Acrobat Reader
available at www.adobe.com for FREE!
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