BA-440 Router/Filter

The BA-440 Router/Filter is designed to perform hundreds of functions with only configuration changes without impacting the software or hardware. The flexibility allows us to provide a complete system within a few weeks after receiving your aircraft functional requirements.

Blue Avionics INC

Configurable Functions using the BA-440 Router/Filter (RFS):

  • ARINC 429 Bus Routing
  • Active ARINC 429 Bus Switching
  • ARINC 429 Bus Combining
  • ARINC 429 Label Filtering or Passing
  • ARINC 429 Bit Mapping
  • ARINC 429 Configurable Boolean Calculations and computations to derive outputs
  • ARINC 429 SDI and SSM Changes
  • ARINC 429 Label Changes
  • ARINC 429 Data Monitoring and Driving Data outputs or Annunciations
  • Integrating non-compatible systems
  • Mapping Discrete Inputs to ARINC 429 Conversion and vice versa.
  • Function Calculations such as
  • ADS-B DO-260B Monitoring
  • True North Calculations
  • Bus Combining and Switching
  • Label Filtering and Passing (Change up to 100 Labels)
  • Intregration Solutions using ARINC 429 Busses and Discretes
  • Trend and complex monitoring algorithms
  • Boolean Logic Calculations
  • ARINC 575 to ARINC 429 Conversions
  • Integration of Complexed systems such FMS and Electronic Display systems
  • Autopilot Interface
  • Flight Data Concentration
  • Combinations of all the above on all Channels and Discrete Inputs.


+28 VDC Nominal Input Range +32Vdc  to +10Vdc
0.7 A nominal

Four (4) Channels of ARINC 429 (HS/LS)
Eight (8) Discrete Inputs (GND/OPEN)

Four (4) Channels of ARINC 429 (HS/LS)
Sixteen (16) Discrete Outputs (GND/OPEN)

Built-In-Test (Self-monitoring)
98% Detection BUILT-in-TEST with a Valid Discrete Output

DO-254 DAL B
DO-160G Non-pressurized, Non-Temp controlled, Very High Levels of EMI/EMC tolerance


  • Unique Configuration Part Number (CPN) is generated for each STC/TC to protect the STC/TC usage rights.
  • Configurations can be accomplished in a few days to few weeks depending on complexity.
  • Configuration changes can be made in the field during engineering testing in minutes using our 626 Configuration Plug Cable.