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Digital I/O Boards

For applications that involve a high number of digital I/O lines, UEI offers four models in the PD2-DIO PCI digital I/O board family with either 64 or 128 I/O lines. Instead of following the industry trend of implementing discrete I/O with cumbersome and limiting 8255-type devices, we work with 16-bit line drivers under control of a DSP and custom logic.

As a result, you no longer need to create external circuitry to guarantee power-on startup states; our software allows you to configure startup states in groups of 16-bit ports. You no longer need to design separate interrupt circuitry; our hardware comes with four high-speed interrupts waiting for you to use. The digital I/O lines are protected against electrostatic discharge and automatically detect shorts on power up.

Besides digital I/O, the board features three 24-bit counter/timers as well as two high-speed ESSI (Enhanced Synchronous Serial Interface) ports. The onboard DSP and optimized PCI-bus interface also allow the card to optionally stream digital data to or from disk at rates as high as 2 Mbytes/s and count events up to 16.5 MHz

Distribution panels make all the board's I/O capabilities available for field connection. Further, an optional accessory (PD2-DIO-CONN64-4) distributes 64 of the digital I/O points into four sets of 16 lines through industry-standard 50-pin IDC connectors. They, in turn, attach directly to relay panels available from UEI and many other sources.

The PD2-DIO series provides an ideal way to add digital input and output capability to any PCI based data acquisition (DAQ), measurement and/or control system.

If you have any questions please call us at: (508)-921-4600 or email us at: info@ueidaq.com

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  1. PD2-DIO-128

    PD2-DIO-128

    128-channel, 16-bit PCI digital I/O board

    • For PCI bus
    • 128 lines (5 V/TTL) of I/O in 16-bit ports
    • Generate interrupts on any line
    • Four separate high-speed IRQ lines (100 ns)
    • User-defined power-up state in 16-bit groups (High, Low, Tri-stated)
    • Two Enhanced Synchronous Serial Interfaces (ESSIs) for high-speed devices such as codecs
    • Three clock/interrupt lines, three 24-bit counters/timers
    • Onboard 16-bit FIFO: 2k samples
    • Port-scan list
    • PowerDAQ Software for Windows NT/2000/XP and Linux/RTLinux

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  2. PD2-DIO-128i

    PD2-DIO-128i

    128-channel Optoisolated Digital I/O Board

    • 64 optoisolated digital inputs
    • 64 optoisolated digital outputs
    • Configured in ports with 16 channels
    • User-configurable glitch-free startup state for all output ports
    • 125V isolation between ports
    • Generate interrupt on any input line
    • Works with I/O levels to 32V
    • Onboard FIFO: 1k 16-bit words In / 2k 16-bit words Out

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  3. PD2-DIO-64

    PD2-DIO-64

    64-channel, 16-bit PCI digital I/O board

    • For PCI bus
    • 64 lines (5 V/TTL) of I/O in 16-bit ports
    • Generate interrupts on any line
    • Four separate high-speed IRQ lines (100 ns)
    • User-defined power-up state in 16-bit groups (High, Low, Tri-stated)
    • Two Enhanced Synchronous Serial Interfaces (ESSIs) for high-speed devices such as codecs
    • Three clock/interrupt lines, three 24-bit counters/timers
    • Onboard 16-bit FIFO: 2k samples
    • Port-scan list
    • PowerDAQ Software for Windows NT/2000/XP and Linux/RTLinux

    Add to Wishlist
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About UEI

For more than 15 years, UEI has made continuous efforts in the development of high performance, PC-based, data acquisition (DAQ) products, and support. Continuing to develop and manufacture new and uniquely powerful and configurable hardware is what makes UEI the right choice for data acquisition and control in multiple industries.
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