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Diamond Point International

Aitech C437 - ARINC-429 A/D, D/A and Digital I/O VME Board

4 Opto-isolated Inputs & Outputs, 16 ARINC-429 Inputs, Eight ARINC-429 Outputs and more


Aitech's C437 provides multiple I/O including ARINC-429, Analog to Digital, Digital to Analog, and discretes, as well as an MP3 player with stereo audio output, on a single slot rugged VME board. The card integrates a sophisticated design totally separating it into independent analog, digital, and discrete domains, thereby minimizing crosstalk and interference, allowing it to achieve high quality analog to digital and digital to analog conversions.

With its extensive I/O capabilities, the C437 provides an attractive solution for system integrators requiring I/O for large numbers of sensors and actuators as in avionics and other versatile control systems. Analog inputs and outputs can be factory configured for compatibility with a wide range of devices. Also provided is an Audio Announcement System with stereo audio output for systems that provide audiomessages playback. Dedicated Flash and SRAM resources enable the C437 to play pre-recorded audio messages in various formats (mp3, wav, etc.) as well as run time messages. 

With its exceptionally low power consumption per functionality, the C437 can easily be integrated into systems having moderately sized power supplies. System thermal design is also simplified by the low power consumption.

The VMEbus interface implemented in the C437 is incorporated in an FPGA logic device providing simple and reliable interface. The VME interface provides slave functionality only and supports A32/D08/D16/D32 access modes.

The FPGA also provides full autonomous control over all onboard functions, leaving the VME host board free to perform other tasks.

The C437 is delivered with a complete set of drivers and Built-In Tests (BIT) for all on board resources. The drivers integrated into the VME host card environment provide full control/status and access to all of
the C437 modules.

The C431 is optionally delivered with a complete set of drivers and optional Built-In Tests (BIT) for all of its on board resources. The drivers integrated into the VME host card environment provide full control and access to all of the C431 modules. The on-board temperature sensor enables fixing of analog and digital conversion errors.



FeaturesRugged/Mil 6U VME Single Slot Board
VME Slave Interface
Four (4) Opto-isolated Diffrential 16-bit A/D Input Channels
Four (4) Opto-isolated Diffrential 16-bit D/A Output Channels
Two (2) +10 VDC and Two (2) -10 VDC Voltage Reference Source Sets
Opto-isolated Discrete I/O Channels
45 GND/OPEN Inputs
Ten (10) 28V/OPEN Inputs
Five (5) 28V/GND Inputs
41 GND/OPEN Discrete Outputs
16 ARINC-429 Inputs
Eight (8) ARINC-429 Outputs
• High or Low Speed Configuration
Audio Announcment System
All I/O Signals Routed to the VME P2 & P0 Connectors
Low Power Consumption
VxWorks Drivers including BIT
VME64x Compliant
Conduction and Air-Cooled Versions
Vibration and Shock Resistant


ExpansionThe C437 VME Bridge is implemented in an FPGA logic device. The VME Bridge provides slave VME capabilities and supports A32/D08/D16/D32 data
transfers from/to any standard VME host board the C437 supports VMEbus interrupts generation on any of the seven VME interrupt levels.
ElectricalIn its default configuration, the C437 receives all its power from the VME backplane +5.0 V, +12 V, and - 12 V supplies. It can also be configured at the factory to utilize the +3.3 V power supply from the backplane supply as defined in the VME64x specification.
Typical power consumption of the fully featured C437 is 14 W, as follows:
+5.0 V @ 0.4 A
+3.3 V @ 0 A
+12 V @ 0.5 A
?12 V @ 0.5 A
MechanicalAir-cooled: per ANSI/VITA 1-1994
Conduction cooled: per IEEE 1101.2
Conformal CoatingConformal coating on request
SoftwareVxWorks, Linux, and INTEGRITY Drivers (Optional)
TemperatureSeries-100 Commercial
• Temperature range (operation): 0 to +55C
• Temperature range (storage): -40 to +85C

Series-200 Rugged
• Temperature range (operation): -40 to +71C
• Temperature range (storage): -50 to +100C

Series-400 Military
• Temperature range (operation): -55 to +85C
• Temperature range (storage): -62 to +125C

Ruggedization level is determined in the part numbering scheme - refer to datasheet for further details
HumiditySeries-100 Commercial: 0-90%
Series-200 Rugged, Series-400 Military: 0-95% or 0 to 100% with coating
AltitudeSeries-100 Commercial: 15,000ft
Series-200 Rugged, Series-400 Military: 70,000ft
VibrationSeries-100 Commercial
• Random (g2/Hz): 20-2000Hz/0.02 g2/Hz
• Sine (g PEAK): 10-100Hz/2g

Series-200 Rugged
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
• Air-Cooled: Random (g2/Hz): 20-2000Hz/0.04 g2/Hz
• Air-Cooled: Sine (g PEAK): 10-100Hz/2g

Series-400 Military
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
• Air-Cooled: Random (g2/Hz): 20-2000Hz/0.04 g2/Hz
• Air-Cooled: Sine (g PEAK): 50-500Hz/5.5g
ShockSeries-100 Commercial: 20g/6mS
Series-200 Rugged: Conduction-cooled: 40g/11ms, 100g/6ms
Series-200 Rugged: Air-Cooled: 30g/11ms, 75g/6ms
Series-400 Military: Conduction-cooled: 40g/11ms, 100g/6ms
Series-400 Military: Air-Cooled: 30g/11ms, 75g/6mS
Warranty1 Year

Ordering Details

BoardRefer to datasheet for ordering part number scheme