Product category:
PC-Compatible Boards and Assemblies
News Release from: Acces I/O Products | Subject: USB-DA12-8A I/O module
Edited by the Electronicstalk Editorial
Team on 03 October 2007
I/O module offers noise immunity
The USB-DA12-8A can be used in an assortment of USB-based embedded applications including stimulus-response, test, simulation, industrial equipment control and waveform/audio synthesis.
Acces I/O Products has released the Model USB-DA12-8A I/O module The board features eight independent 12bit digital-to-analogue convertors (DACs) and broadly configurable arbitrary waveform generation (ARB) capabilities
This article was originally published on Electronicstalk on 24 Jun 2003 at 8.00am (UK)
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Boards embed four or eight switchable serial ports
The 104-COM-8S and 104-COM-4S are the latest additions to the line of PC/104 boards from Acces I/O Products.
Four Es a jolly good acquisition system
The Model E4-DAS takes its name from being an easy to use, Ethernet enabled, embedded and environmentally adaptable PC/104-based data acquisition system.
This module can be used in any PC or embedded system with a USB port and is suitable for test and embedded system designers.
It has both single-ended and differential outputs for increased noise immunity, ARB status and control signals via external connections, and two DB25 industry-standard connectors.
The unit is fully compatible with USB 2.0 ports and hot-plug functionality allows for quick connect/disconnect.
Further reading
Analogue I/O board squeezes in 16 channels
The model LPCI-A16-16A is a high-speed PCI 16bit multifunction analogue I/O board for precision PC-based measurement, analysis, monitoring and control in space-limited embedded applications.
Digital input board has four relay outputs
The Model 104-II32-4RO is a 36-channel PC/104 utility board featuring 32 optically isolated digital inputs with change-of-state interrupt generation and four electromechanical relay outputs.
Board embeds waveform generation capabilities
The latest PC/104 board from Acces I/O Products combines eight independent 12bit DACs with broadly configurable arbitrary waveform generation capabilities.
The USB-DA12-8A can be used in an assortment of USB-based embedded applications including stimulus-response, test, simulation, industrial equipment control and waveform/audio synthesis.
For the laser entertainment industry, the differential output connector conforms to the ILDA (International Laser Display Association) standard as a laser graphics signal source.
Arbitrary waveform generation capability becomes increasingly necessary as CPUs are burdened with more complex tasks.
An arbitrary waveform is a user-defined set of digital values specified point by point over time.
These values are then clocked through a DAC to provide the analogue output signal.
Virtually any waveform can be created using the software tools provided by Acces and third-party software packages.
The ARB relieves some of the load placed on the CPU by handling the waveform generation at the hardware level using on-board memory and control logic.
This is especially useful in time-critical applications as outputs remain unaffected by latencies inherent in popular operating systems.
Acces I/O's ARB architecture allows for flexibility in allocating the onboard RAM across the channels depending on the complexity of the desired waveform.
The USB-DA12-8A is designed to be used in rugged industrial environments but is small enough to fit nicely onto any desk or testing station.
The board measures has a steel powder-coated enclosure with an anti-skid bottom.
A DIN rail mounting provision is available for installation in industrial environments.
Its PCB size and pre-drilled mounting holes match the PC/104 form factor (without the bus connections).
This ensures easy installation using standard standoffs inside most enclosures or systems.
The USB-DA12-8A can be integrated into any PCI-104 or PC/104 stack by connecting it to a simple USB port, usually included on-board with embedded CPU form factors such as EBX, EPIC, and PC/104.
This is important since many newer CPU chipsets do not support ISA and have plenty of USB ports.
The USB-DA12-8A is supported for use in most operating systems and includes a free Linux (including Mac OS X) and Windows 95/98/Me/NT/2000/XP/2003-compatible software package.
This package contains sample programs and source code in Visual Basic, Delphi, C++ Builder and Visual C++ for Windows.
Also incorporated is a graphical setup program and utilities to generate waveforms in Windows.
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