Sundstrand 5005-09N Serial BTR-G1 Data Interface Module

Sundstrand 5005-09N Serial BTR-G1 Data Interface Module is a white-enclosed serial data interface unit from Sundstrand, identified by model BTR-G1 and part number 5005-09N. The designation appears in Sundstrand documentation and is listed under the Sundstrand Serial BTR-G1 name in catalog and refurbished inventories. As a data interface module, it handles serial communications between subsystems within a Sundstrand avionics ecosystem, serving as a dedicated bridge for data exchange in legacy aerospace applications. Historical references from Sundstrand documentation and NASA materials confirm the existence of the BTR-G1 data interface module and its role in serial data networking within aerospace systems. This item has appeared in refurbished online inventories marketed as Sundstrand Serial BTR-G1 with the 5005-09N identifier, making it accessible through aftermarket suppliers for restoration or retrofitting projects. Buyers sourcing this part should verify compatibility with their backplane, connectors, and cabling against the equipment's service documentation, since exact interface details can vary by installation and equipment configuration. The 5005-09N / BTR-G1 designation uniquely identifies this module in inventories and historical Sundstrand references.