Input-Output Unit (IOU) for Secure Processing and Routing of Hull, Mechanical, & Electrical (HM&E) and Navigation Signals

Navy Phase I SBIR Topic: DON27BZ01-NV004
Pre-release Oct 7, 2026   Opens to accept proposals Oct 28, 2026   Closes Nov 25, 2026 12:00pm ET    [ View TPOC Information ]

DON27BZ01-NV004 TITLE: Input-Output Unit (IOU) for Secure Processing and Routing of Hull, Mechanical, & Electrical (HM&E) and Navigation Signals

COMPONENT TECHNOLOGY PRIORITY AREA(S): Integrated Network Systems-of-Systems;Microelectronics;Sustainment

PROJECTED CMMC LEVEL REQUIREMENT: Level 2 (Self)

The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), 22 CFR Parts 120-130, which controls the export and import of defense-related material and services, including export of sensitive technical data, or the Export Administration Regulation (EAR), 15 CFR Parts 730-774, which controls dual use items. Offerors must disclose any proposed use of foreign nationals (FNs), their country(ies) of origin, the type of visa or work permit possessed, and the statement of work (SOW) tasks intended for accomplishment by the FN(s) in accordance with the Announcement. Offerors are advised foreign nationals proposed to perform on this topic may be restricted due to the technical data under US Export Control Laws. 

OBJECTIVE: Develop a dust-protected, water splash-resistant Input-Output Unit (IOU) capable of interfacing with legacy and modern equipment to send, receive, process, and route signals throughout the hull and superstructure of naval vessels.

DESCRIPTION: IOUs are used on all Navy DDG 51 class ships to transfer Steering Control, Machinery Control, and Damage Control signals, as well as Interior Communication Alarm and Indication, Synchro and Digital Navigation data. They are also used on USN LHA(R) class ships, in Aegis Ashore facilities, and across a variety of Foreign Military Sales (FMS) cases. IOUs serve as a translation point when sending and receiving non-Ethernet traffic, such as synchro and low-level serial data, to Ethernet user systems.

IOUs are installed in a variety of air-conditioned and non-air-conditioned spaces. Their use in engineering spaces that historically have relied on Halon 1301 (safe for sensitive electronics) for fire suppression has been complicated by the Navy’s transition away from Halon and toward water mist protection systems. Additionally, existing IOUs rely on the integration of a wide variety of circuit card assemblies (CCA) to process different types of signals, creating hardware challenges for lifetime support and technology refresh.

The Navy seeks to reduce lifecycle costs with a simplified design that has fewer hardware dependencies, hardware component updates, and more open and modular system architectures.

The IOU is intended to be operated continuously. The IOU shall be designed to permit routine maintenance and troubleshooting. Repair actions should be possible while the IOU is energized without loss of required functionality and operating. Reliability and Survivability are essential and all IOU components must demonstrate Mean Time Between Failures (MTBF) in excess of 10,000 hours. While the IOU as a whole product does not exist commercially, the base technology required is available in industry. The focus of this SBIR topic is to integrate the capabilities into a synergized product.

Requirements:

The Navy requires a dust-protected, water splash-resistant (IEC 60529 IP54-rated) IOU capable of interfacing with legacy and future equipment to send, receive, process, and route signals throughout the hull and superstructure of naval vessels. The enclosure must protect the power supply, cooling components, and electronics necessary to connect serial (RS-232, RS-422, RS-485, NTDS-E), fiber Ethernet, Cat 5 Ethernet (unicast, multicast), analog synchro (60 and 400 Hertz), and analog voltage (AC and DC) capabilities. External connections are made by triaxial, 42-pin, and 92-pin cables, as well as fiber optic connectors to redundant Gigabit Ethernet (GbE) shipboard networks.

Design must accommodate an additional fifty percent capacity for future growth from initial defined design specifications and capability descriptions. It must also provide adequate internal cooling while meeting or exceeding IP54 dust and spray requirements.

All hardware components must be compliant with Restriction of Hazardous Substances (RoHS) directive 2011/65/EU.

Enclosure:

Maximum size and weight (excludes external mounting dimensions):

Weight: 188 pounds; Depth: 17 inches; Width: 26 inches; Height: 27 inches.

The IOU must be mountable from the rear or the bottom and allow cable attachment/removal and reasonable access to all user interfaces and cable attachment points in any mounted configuration.

Power Supply:

Internal Alternating Current (AC) power supply will connect to two independent 120V, 60Hz shipboard lighting circuits (2 of 3 phases) for redundancy. Synchro reference power (400Hz and 60Hz) is necessary for some user interfaces (separate from IOU AC power). IOUs should require less than 600 Watts of power when fully loaded.

IOU must strictly comply with MIL-STD-1399-300, operating reliably on both Type I and Type II power. The design must tolerate all specified voltage and frequency fluctuations, withstand severe voltage spikes, and limit maximum instantaneous input current (inrush current) when initially energized. To maintain ship-wide power quality and ensure system compatibility, the IOU must also adhere to strict limits on harmonic distortion, maintain a high-power factor, and meet the electromagnetic interference (EMI) and electromagnetic compatibility (EMC) requirements of MIL-STD-461. To ensure the IOU design is suitable for shipboard environments, the IOU must meet the requirements of the latest revisions of MIL-STD-810 (currently Rev H with Change Notice 1), MIL-DTL-901 (currently Rev E), MIL-STD-167 (currently Rev 1A with Validation Notice 1), and MIL-HDBK-2164 (currently Rev A),

IOU must remain fully operational through momentary power interruptions from the selected power source. If all AC power is lost, the IOU will automatically restart within 30 seconds following restoration of at least one power source. Adequate cooling must be maintained in any power-on condition.

User Interfaces, Routing, Processing:

IOU must adhere to a defined set of core networking standards. The unit must ensure full compliance with the foundational protocols for internetworking, including IPv4 (RFC 791) and IPv6 (RFC 8200). To support efficient one-to-many data distribution, the IOU must implement IP Multicasting (RFC 1112). For high-availability and fault tolerance, the IOU must also support the Parallel Redundancy Protocol (PRP) in accordance with IEC 62439-3.

Fiber optic cables connecting the IOU to shipboard networks will be supplied by the shipbuilders and will utilize a four-fiber cable per MIL-PRF-85045/18 with a fiber cable class of single mode per MIL-PRF-49291/7.

Reliance on legacy hardware and proprietary data currently limits the Navy's ability to use open competition. Updating the design to include commercially available components will eliminate these constraints and significantly reduce lifecycle costs.

PHASE I: Develop a concept for an IOU that meets the requirements described above. Demonstrate through modeling and simulation and other supporting documentation the efficacy of the proposed system design for satisfying prototype system requirements. If the Phase I Option is exercised, include the initial design specifications and capabilities or description to build a prototype solution in Phase II.

PHASE II: Construct, test, and deliver a prototype in accordance with the above Description that can be inserted in a network lab environment to verify continuity and throughput of all required signal types with legacy connections. Ensure that the prototype must demonstrate adequate cooling capability under sustained heavy loading and meet or exceed IP54 as verified by testing in accordance with IEC 60529 (Ingress Protection codes for electrical equipment enclosures) and MIL-STD-1399 (Shipboard Electric Plants), paragraph 300F.

PHASE III DUAL USE APPLICATIONS: With enclosures that maintain adequate cooling while maintaining IP54 protection, IOUs may continue to be used in a wide variety of shipboard spaces and use could be more readily expanded to commercial industrial operations. Future designs could investigate expanding processing and storage capability at IOUs to create distributed processing capabilities across industrial networks or translate hardware signals to a cloud architecture. Additionally, IOUs could be tailored and optimized for specific activities or modified for use in other types of networks or at higher classification levels.

Support the Navy in transitioning the IOU technology for fleet-wide use, providing the necessary equipment, training, and logistical documentation.

Potential commercial applications for an IOU include commercial maritime systems, offshore extraction, and advanced industrial processes.

REFERENCES:

  1. Meier, S. J. and Manfredi, A. "Gigabit Ethernet Data Multiplex System (GEDMS) - Enabling the Net-Centric Evolution of Navy Combatants." IEEE Xplore, October 2006, IEEE. https://ieeexplore.ieee.org/document/4086704
  2. European Parliament & Council of the European Union. "Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment." EUR-Lex., June 8, 2011, Official Journal of the European Union. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32011L0065
  3. McHale, J. "Demanding high-speed I/O." Military & Aerospace Electronics, Volume 20, September 2009; pp. 34-37, 42. https://www.militaryaerospace.com/computers/article/16713292/demanding-highspeed-io
  4. Keller, J. "Gigabit Ethernet Data Multiplex System installed on Navy destroyer for shipboard networking." Military & Aerospace Electronics, Volume 23, February 2012; p. 27. https://www.militaryaerospace.com/home/article/16714441/gigabit-ethernet-data-multiplex-system-installed-on-navy-destroyer-for-shipboard-networking
  5. Cooney, M. "Gigabit Ethernet goes to war: Navy, NASA and others deploying Gigabit Ethernet networks." Network World (Online), Volume 1, July 8, 2009: inclusive pages. https://www.networkworld.com/article/731388/lan-wan-gigabit-ethernet-goes-to-war.html
  6. International Electrotechnical Commission. "Degrees of protection provided by enclosures (IP Code) (IEC Standard No. 60529:1989+AMD1:1999+AMD2:2013 CSV)." IEC Webstore, August 2013. https://webstore.iec.ch

KEYWORDS: Ethernet Networks; Alternating Current; AC; Input Output Unit; Parallel Redundancy Protocol; PRP; Dust-Protected; Water Splash-Resistant

TPOC 1 : Christopher Strater
(202) 781-2221
christopher.l.strater.civ@us.navy.mil

TPOC 2 : Ken Broadbent
(202) 781-4205
kenneth.s.broadbent2.civ@us.navy.mil

** TOPIC NOTICE **

The Navy Topic above is an "unofficial" copy from the Navy Topics in the DoW FY-27 Release 1 SBIR BAA. Please see the official DoW Topic website at www.dodsbirsttr.mil/submissions/solicitation-documents/active-solicitations for any updates.

The DoW issued its Navy FY-27 Release 1 SBIR Topics pre-release on October 7, 2026 which opens to receive proposals on October 28, 2026, and closes November 25, 202 (12:00pm ET).

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