Flight spare multi-cryocooler control parts

The NASA/NSSC is seeking a contractor to provide a flight spare multi-cryocooler control electronics unit for the EXoplanet Climate Infrared TElescope (EXCITE) mission. The contractor shall provide a spare main board for the same model, and the flight spare units will drive Thales LPT-9310/LPT-9310-HP pulse tube cryocoolers. The technical requirements include that the flight spare complete MCCE unit shall be identical to EXCITE's two flight units, and the main board shall be a drop-in replacement for the main boards on any of the three complete MCCE units. Key points to consider: • The flight spare units must be identical to the flight units, which have serial numbers 001 and 002. • The main board must be a drop-in replacement for the main boards on any of the three complete MCCE units. • All mechanical, electrical, and software interfaces for the flight spare units must be identical to those of the flight units.