Key Specifications
Key Features
- MIL-STD Power Interface
Accepts 9–60 Vdc input with internal EMI filtering and conversion to +5 Vdc for the hosted GPSR, eliminating the need for external power conditioning.
- RS-422 Signal Conversion
Converts NavFire™ 3.3V CMOS outputs to RS-422 for direct interfacing to flight computers and other standard avionics buses.
- 1PPS Fan-Out
Distributes the GPSR’s 1PPS synchronization signal to five RS-422 outputs and one CMOS output simultaneously for multi-system timing distribution.
- SDN500 INS Tightly Coupled Interface
Enables tightly coupled GPS/INS integration with the Emcore (Systron-Donner) SDN500-xx76 IMU, combining GPSR and IMU data into a blended INS solution.
- Key Loading Interface
Provides a DB-9 encryption key loading port to support classified GNSS operation.
- Optional Auxiliary Power and Timing Signals
Battery backup input, 10.949 MHz time synchronization, 50 Hz T20 clock, and spin pulse output are all available as optional interfaces.
Typical Applications
- Launch Vehicle GPS/INS Navigation
Interfaces a NavFire™ GPSR to a flight computer for GPS-based navigation during ascent.
- Tightly Coupled GPS/INS Integration
Pairs with an SDN500 IMU for blended inertial/GPS navigation on spinning or high-dynamic vehicles.
- Multi-System 1PPS Distribution
Distributes GPS timing to multiple avionics subsystems requiring synchronized time references.
- Classified GNSS Operations
Supports encryption key loading for M-code or anti-jam GPS operation on government missions.
Available Configurations
Hosts NavFire™ GPSR with RS-422 conversion and 1PPS distribution. Configurable for direct flight computer connection or SDN500 INS + flight computer connection.
Invocon can adjust connector pinouts and optional interface enables (battery backup, MST_CLK, T20, spin pulse) to match specific vehicle integration requirements.
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Related Products
Invocon Flight Computer (IFC)
Integrated Pulse Coded Modulation Encoder (iPCMe)
Power Control Assembly (PCA)
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