The Max Technologies IPM-429-E-T4-R4 is an ARINC-429 IndustryPack module designed for avionics communication and data transfer in aerospace and defense systems. It delivers 4 transmit and 4 receive channels with independent configuration and operation, supporting both polling and interrupt-driven software strategies. The module handles message scheduling with 1 microsecond time-tagging precision and includes a 32-word ARINC-429 FIFO buffer with programmable almost-full/almost-empty thresholds.
Technical Specifications
• ARINC-429 Channels: 4 Transmit (Tx), 4 Receive (Rx)
• Data Rate: 3900 bps to 125 kbps per channel (configurable)
• Word Length: Selectable 25-bit or 32-bit
• Time-Tagging Precision: 1 microsecond
• FIFO Buffer: 32 ARINC-429 word capacity
• Operating Temperature: 0°C to 70°C
• Humidity: 0 to 95% relative humidity (non-condensing)
• MTBF (MIL-HDBK-217 FN2, 30°C): 1,254,404 hours
• ARINC-429 Voltage Levels: Receive ±6.5 V to ±13 V, ±2.5 V (Null)
– Key Features
• Independent channel configuration with programmable parity, word length, bit-rate, and slew-rate
• Receiver label filtering for selective message acceptance
• Parity and short-word error detection
• External Loopback (ELB) option for automatic transmitter verification
• Short-circuit protected transmitters
• Internal loopback receiver configuration
• 8 independently configurable General Purpose Discrete I/O lines
• DIO ports programmable to toggle during individual message word transmission
– Typical Applications
• Aircraft avionics systems
• Aerospace data acquisition and monitoring
• Defense platform communication networks
• Real-time databus integration
– Compatibility & Integration
• Form Factor: IndustryPack single-size module
• Primary Interface: ARINC-429
• Secondary Interface: 8 Discrete I/O lines
• Software: Supports both polling and interrupt-driven execution models
















