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PCI-bus 32 Ch high density isolated Digital Input & 32 Ch OC Out US$181.00

PCI-bus 32 Ch high density isolated Digital Input & 32 Ch OC Out


The EX-94264/AC is 64-CH high-density isolated digital input and/or output product. This I/O card is isolated up-to 5000 Vdc (excluding cables) for channel-to-computer isolation. It protects your computer against damage caused by accidental contact with high external voltage and eliminates troublesome ground loops.

The EX-94264/AC fully implements the PCI local bus specification Rev 2.1. All bus relative configurations, such as base memory and interrupt assignment, are automatically controlled by BIOS software.>


The EX-94264/AC Isolated digital I/O card provide the following advanced features:
  • 32 Isolated digital Input channels (non-polarity input for EX94264AC)
  • 32 Isolated digital output channels
  • High output driving capability, 500mA sink current on isolated output
  • 5000 Vrms high voltage isolation
  • External interrupt signal on DI channels
  • Built-in digital debounce
  • 68-pin SCSI-II connector (Pin compatible to EX-98068 )(see page 44 )


  • Laboratory and Industrial automation
  • Watchdog timer
  • Event counter
  • Frequency counter and generator
  • Low level pulse generator
  • Time delay


  • Optical Isolated Input Channel
    • Numbers of Channel: 32 Digital Inputs
    • Input polarity: polarity sensitive for EX-94264, and non-polarity for EX-94264AC
    • Input Voltage: 0 - 24V dc
    • Logic H: 3~24V
    • Logic L: 0~2.4V
    • Input resistance: 4.7 @ 0.5W
    • Isolated voltage: 5000 Vrms
    • Throughput: 10K Hz (0.1 ms)
  • Optical Isolated Output Channel
    • Numbers of Channel: 32 Digital Outputs
    • Output type: Darlington transistors with common ground
    • Output voltage: 5VDC min, 90VDC maximum
    • Output Device:ULN2803(common ground)
    • Sink Current: Max. 500mA/ch for only one of the ULN2803 transistor is ON
    • Power Dissipation: 1.47W per ULN2803 device (8 channels)
    • Isolated voltage: 5000 VDC
  • Interrupt Sources
    • Channel 0 to channel 7 of digital input channels
    Digital debounce
    • Software programmable from 10msec to 160 msec
  • General Specifications
    • Connector: 68-pin SCSI-II connector
    • Operating temperature: 0°C ~ 60°C
    • Storage temperature: -20°C ~ 80°C
    • Humidity: 5 ~ 95%, non-condensing
    • Power Consumption: +5V @ 530 mA typical
    • Dimension: 170mm(W) x102mm (H)

Software Support

TOPSCCC provides versatile software drivers and packages for users’ different approach to built-up a system. They not only provide a programming library such as a DLL for many Windows systems, but also provide drivers for many software package such as LabVIEW™, Intouch™ and so on. All the software options are included in the provided CD.

Programming Library

The provided CD includes the function libraries for many different operating systems, including:
  • DOS Library: Borland C/C++ and Microsoft C++, the functions descriptions are included in this user’s guide.
  • Windows 98/2000/NT/Me/XP DLL: For VB, VC++, BC5, the functions descriptions are included in this user’s guide.
  • Windows 98/2000/NT/Me/XP ActiveX: For Windows applications
  • LabVIEW ® Driver: Contains the VIs, which are used to interface with NI’s LabVIEW ® software package. Supporting Windows 95/98/NT/2000. The LabVIEW ® drivers are free shipped with the board.
  • InTouch Driver: Contains the InTouch driver which support the Windows 98/2000/NT/XP. The InTouch ® drivers are free shipped with the board.


EX94264 User Manual
EX94264 Driver

Lead time: 4 business days

This product was added to our catalog on Wednesday 03 September, 2008.


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