The Multi-Mission Module (M3) Interface Control Document outlines the interface requirements between the M3 and its host, typically a Space Vehicle (SV). It details mechanical, electrical, and thermal interfaces, with specific requirements for mass, center of mass, vibration conditions, input voltage, power isolation, and command and telemetry protocols. Key specifications include the M3's mass range of 2 to 6.5 kg, power supply requirements of 28V +/- 6V, and strict communication protocols via RS422 interfaces for command, telemetry, and data transfer. The host is obligated to provide peak power of up to 200W while ensuring a reliable thermal interface, maintaining temperatures between 0°C and 40°C. The document emphasizes compliance and precedence of the Interface Control Document over any conflicting host or M3 requirements, facilitating controlled interoperability between various systems in aerospace contexts. Overall, it serves to ensure that M3 modules function effectively within their designated host systems, vital for successful aerospace missions. This summary reflects the structured nature of the document and includes core details pertinent to its implementation and operational standards.

The Space Development Agency has issued a detailed technical drawing for the M3 Enclosure, outlining its specifications and installation instructions. Key details include the enclosure's material, dimensions, and processes for proper assembly. The drawing stipulates adherence to standards such as ASME Y14.5-2018 and various military specifications for finishing and environmental conditions. Five installation options are provided, highlighting methods for securing via socket head cap screws. Emphasis is placed on thermal management, requiring designs capable of dissipating up to 205 watts while addressing connector specifications for reliable functionality. Additionally, the document includes tolerances for dimensions and critical safety and performance details. This guidance is crucial for ensuring that the enclosure meets necessary operational requirements and quality standards before production or deployment, reinforcing the agency's commitment to rigorous engineering practices.

The Space Development Agency (SDA) is issuing a Request for Information (RFI) to gather industry feedback on the Battle Management, Command, Control, and Communications (BMC3) Multi-Mission Module (M3) interface documentation. This initiative aims to refine the interface requirements for future spacecraft, enabling a Modular Open System Approach (MOSA) that allows independent development of capabilities by component vendors. SDA, established in 2019, focuses on creating the Proliferated Warfighter Space Architecture (PWSA), which comprises a network of satellites providing critical data for national defense and military operations. The RFI acknowledges the evolving needs of space-based capabilities, emphasizing the necessity for fast integration and interface documentation that promotes technological interoperability. Comments and recommendations regarding the M3 interface documentation are expected by April 11, 2025. The RFI includes appendices detailing specific interface control documents relevant to the M3 architecture. SDA's mission aligns with the National Defense Strategy, aiming to deliver resilient capabilities to enhance U.S. military advantage in space, addressing the urgency of evolving threats and the requirements of the warfighter.