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3U VPX 64-Channel Isolated Digital I/O Board

PDF print version of this specification : A4 or Letter

The 64-Channel Digital Input/Output (I/O) Board provides 32 opto-isolated digital output channels, each with internal output status feedback, as well as 32 opto-isolated digital input channels on a single 3U VPX board. A Field-Programmable Gate Array (FPGA) and a PCIe bridge is used to provide access to the digital data over the PCIe interface.

I/O channels to system isolation is 2 500 V RMS.

Photograph of DIO Board
3U VPX 64-Channel Isolated Digital I/O Board


A FPGA is used to control the 32 output channels and read the 32 input channels, and provides the PCI interface to the PCIe bridge. LED optocouplers on all inputs provide 2 500 V RMS isolation, while outputs are driven by high-voltage Darlington transistor arrays.

Block Diagram
Block Diagram of the 3U VPX 64-Channel Isolated Digital I/O Board

  • wide input range (3 V to 35 V)
  • wide range output (3 V to 35 V)
  • Air-Cooled version
  • Commercial, Industrial and Ruggedised grades
  • programmable inputs and outputs
  • high output sink current (up to 300 mA)
  • high number of digital inputs and digital outputs
  • internal output feedback
  • I/O channel to system voltage isolation
  • board identification switch
  • DC inputs
  • frontpanel I/O

Formfactor and Bus Interface ANSI/VITA 46.0-2007 (R2013), VPX Base Standard
ANSI/VITA 46.4-2012, PCI Express on VPX Fabric Connector
PCI Express Base 1.0a compliant (1 lane, 2,5 GHz)
Digital Outputs 32 Optically Isolated Open Collector Darlington Transistor
Digital Inputs 32 Optically Isolated DC
Voltage Isolation 2 500 V RMS (I/O channel to system)
Power 3,3 V DC at 0,3 A (1 Watt); 5 V DC at 0,5 A (2,5 Watt)
Input Resistance 2 400 Ohm +/- 5%
MTBF Figures according to MIL-HDBK-217F, Parts Stress Method
Commercial and Industrial Grades Ground Benign, Controlled, 25 C 1 220 000 hours
Ruggedised Grade Ground, Mobile, 45 C
Naval, Sheltered, 40 C
Airborne, Inhabited Cargo, 55 C
210 000 hours
291 000 hours
195 000 hours
Software Drivers Support for Linux.
VxWorks, Windows and others are costed options.
Physical Characteristics
Cooling Type Air-Cooled
Dimensions 100 mm x 160 mm
Mass 200 g +/- 10 g
Environmental Specifications
Grade Commercial Industrial Ruggedised
- Operating
- Storage
0 C to +55 C
-40 C to +85 C
-15 C to +75 C
-40 C to +85 C
-40 C to + 85 C
-55 C to +125 C
Humidity 0% - 90% 0% - 95% 0% - 95%
Shock 10 g peak for 11 ms 20 g peak for 11 ms 40 g peak for 11 ms
- Sine
- Random

2 g (peak) at 10 Hz to 100 Hz
0,04 g/Hz at 15 Hz to 2 kHz

5 g (peak) at 5 Hz to 2 kHz
0,06 g/Hz at 15 Hz to 2 kHz

10 g (peak) at 5 Hz to 2 kHz
0,1 g/Hz at 15 Hz to 2 kHz
Part Designation Cooling Connector Grade
CCII/DIO/3UVPX/64C/FP/COM Air Frontpanel Commercial
CCII/DIO/3UVPX/64C/FP/IND Air Frontpanel Industrial
CCII/DIO/3UVPX/64C/FP/RGD Air Frontpanel Ruggedised

CDIOSS10 Rev. 1.4 2015-06-30
CCII Systems (Pty) Ltd P.O. Box 171 Rondebosch 7701  South Africa 
Telephone : (+27 21) 683 5490 Facsimile : (+27 21) 683 5435 WWW : www.ccii.co.za

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