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This SAE Aerospace Information Report (AIR5271) covers the basic attributes of a second-generation
robust, reliable high-density fiber optic interconnect system for aerospace applications. The intent is to
take advantage of recent commercial developments in materials, components and manufacturing
methods to develop rugged high-density fiber optic interconnects optimized for aerospace and
automotive applications, which can accommodate a variety of optical fiber waveguide types. These
waveguide types include single mode and multi-mode glass/glass fibers and waveguides, plastic clad
silica fibers and waveguides, and all polymer fibers and waveguides. This second generation
interconnect system should represent a dramatic improvement over first generation. The cable should
be extremely robust eliminating any concerns over cable damage or fiber breakage in an aerospace
environment.
A high-density fiber optic interconnect system provides the physical medium for optical data and
control communication in aerospace vehicles. As such, it consists of the cables and harnesses,
connectors, splices, backplane interfaces, transceivers, fiber optic couplers, and includes test and
maintenance concepts for these items. Also included are manufacturing, installation and repair tools,
processes and training programs. The high-density format should provide for both redundant serial
data transmission or parallel data transfer by providing a scaleable fiber count. Connectors should
provide an extremely small footprint, with low mass connector shells and array inserts, and
accommodate both single and multi-mode fibers. Fiber spacing and cladding diameter should be
standardized and coatings utilized to guarantee long term reliability. The cable connector interface
shall be optimized to preclude damage during installation and/or maintenance actions as well as ease
of termination. All elements of the cable plant should be compatible including splices and couplers
with minimum weight, volume and footprint. This optimized cable plant shall serve as an integrated
information distribution system capable of transferring all information on military and commercial
aircraft with dramatic improvements in affordability, reliability, fault tolerance, EMI/EMP immunity and
safety. Utilization of this cable plant will improve aircraft performance and fuel economy, providing
operational cost effectiveness while reducing new aircraft certification costs.strRefField
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