--- type: product schema_version: 1 stock_number: "90196-1" canonical_url: "https://www.artisantg.com/90196-1/L3-Harris-49072121-1" json_url: "https://www.artisantg.com/90196-1/L3-Harris-49072121-1.json" generated_at: "2026-11-07T12:59:35.182Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # L3 Harris / L-3 Communications 49072121-1 FPP4 MUXbus Interface Board _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: L3 Harris - Model: 49072121-1 - Condition: Used and in Excellent Condition - Price: Quote only - Availability: In stock - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 3 lb, estimated - Shipping dimensions: 12X9X6 in, estimated ## Categories - Test Equipment > Electrical Test > Adapters (primary) - Test Equipment > Electrical Test > Control Bus Interfaces - Military and Embedded Equipment > Embedded & Industrial > Other Modular ## Details ### Configuration - Memory: 1 MB CMOS SRAM - FIFO: 32 KB CMOS SyncFIFO Part Number: 49072121-1 ## Overview Integrates MUXbus communication protocol within electronic systems, designed for defense and aerospace applications; employs printed circuit board hardware. Connects via electrical connectors to other avionics equipment for data transmission and interfacing. Commonly used in military aircraft systems for signal processing, data management, and communications interfacing. Supports multi-channel data handling and real-time data processing, ensuring secure and reliable communications between various subsystems. ## Function Digital interface board that provides bidirectional communication between MUXbus architecture and external systems. Implements protocol conversion, signal conditioning, and data routing for avionics bus integration. Features multiple channel I/O ports, programmable data rates, built-in error detection/correction, and hardware-level message filtering. Supports MIL-STD-1553 and ARINC protocols with real-time data transfer capabilities. Includes onboard memory buffers, timing synchronization circuits, and diagnostic monitoring. Commonly deployed in military aircraft systems, flight control computers, and mission systems requiring reliable multiplex bus connectivity for critical data exchange between subsystems. ## Platform The FPP4 MUXbus Interface Board is designed for embedded systems, operating on a VMEbus backplane. It provides MIL-STD-1553B and ARINC 429 communication interfaces. The board facilitates data transfer and control functions within aerospace and defense applications, integrating with host processors via the VMEbus and connecting to external devices through its bus interfaces. ## Application Provides multiplexed data bus interfacing capabilities for avionics and mission systems integration. Enables bidirectional communication between disparate subsystems using standardized MUXbus protocols. Supports high-speed serial data transfer, protocol conversion, and signal conditioning. Interfaces with flight management computers, navigation systems, weapons control units, and sensor packages. Common applications include military aircraft avionics integration, unmanned aerial vehicle control systems, electronic warfare platforms, and ground-based command and control stations. Used in retrofit programs for legacy aircraft modernization and new platform development requiring robust data distribution architectures. ## Accessories Requires FPP4 MUXbus backplane or compatible chassis for installation; interfaces include MUXbus edge connector for board insertion. Connectors: 1) A micro-miniature or custom MUXbus connector interfacing with backplane signals; 2) standard I/O connectors defined by the system using the MUXbus interface. No separate external connectors or standalone interface cables are typical; operation depends on integration within the MUXbus framework. No additional specific accessories documented. ## Interface MUXbus Interface Board designed with a MUXbus connector interface (specific pin count not detailed). Typically mounts into a compatible backplane or chassis supporting MUXbus architecture for signal multiplexing and data transfer. Intended to interface with other modules via MUXbus standard connectors. Detailed references indicate operational control and monitoring via standard industrial connectors consistent with L3Harris board designs, but specific connectors and pin counts for this model are not explicitly documented in the provided data. ## Images - - - -