The International Space Station (ISS) program has identified specific Orbital Replaceable Units (ORUs) as candidates for on-orbit intermediate level maintenance. Performing intermediate level maintenance on-orbit will allow sparing at the Shop Replaceable Unit (SRU) level rather than the ORU level. This will minimize cost and volume to transport replaceable units to and from orbit, minimize stowage on-orbit, and maximize on-orbit spare availability that will in turn minimize system downtime. To accomplish on-orbit intermediate level maintenance, additional requirements for fault isolation and confidence testing must be implemented. Test equipment used on-ground to perform fault isolation and acceptance testing is large and heavy. Consideration for weight and volume is an important factor for any test equipment that is to be transported, used and stowed on-orbit. This paper summarizes a phased approach to testing electronic hardware on-orbit with minimal additional weight and volume for the test equipment.
The International Space Station on-orbit tester
Space Technology and Applications International Forum - 2001 ; 2001 ; Albuquerque, New Mexico
AIP Conference Proceedings ; 552 , 1 ; 147-152
2001-02-02
6 pages
Conference paper
Electronic Resource
English
The International Space Station On-Orbit Tester
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