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

PDF print version of this specification : A4

The 120-Channel Digital Input / Output (DIO) Board offers a number of I/O types of data on a single 3U VPX board.

The DIO Board provides TTL input and output channels, LVDS input and output channels, RS-422/485 channels, and digital input and output channels. The DIO Board provides RS-422/485 to RS-232 conversion as well as differential SPI channels. All I/O signals are routed to either the VPX backplane or a 160-pin Front Panel connector.

The DIO Board also offers a configurable clock and onboard user-controlled LEDs.

A user-programmable Xilinx Artix -7 Field-Programmable Gate Array (FPGA) is used to provide access to the digital data over the PCIe interface. The FPGA is programmed automatically on power-up through a configuration PROM.


Block Diagram

Block Diagram of the 120-Channel Isolated Digital I/O 3U VPX Board

  • Xilinx Artix-7 XC7A100T FPGA
  • 4-Lane PCIe interface (VPX)
  • Configuration PROM
  • Configurable clock up to 250 MHz
  • User-controlled LEDs
  • Five Differential SPI channels
  • 20 x TTL Inputs
  • 20 x TTL Outputs
  • 10 x LVDS Inputs
  • 10 x LVDS Outputs
  • 20 x RS-422/485 Inputs and Outputs
  • 20 x RS-232 Inputs and Outputs
  • 10 x Digital Inputs
  • 10 x Open Collector Outputs

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)
Power 3,3 V DC at 0,3 A (1 Watt); 5 V DC at 0,5 A (2,5 Watt)
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 VxWorks and Linux.
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/CDIO/FP/COM Air Front Panel Commercial
CCII/DIO/3UVPX/CDIO/FP/IND Air Front Panel Industrial
CCII/DIO/3UVPX/CDIO/FP/RGD Air Front Panel Ruggedised
CCII/DIO/3UVPX/CDIO/BP/COM Air Backplane Commercial
CCII/DIO/3UVPX/CDIO/BP/IND Air Backplane Industrial
CCII/DIO/3UVPX/CDIO/BP/CC Conduction Backplane Ruggedised

CDIOSS14 Version 0.2 2019-02-26
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