Product Support Equipment
The TTU/515E or O/I Level Test Set was developed to provide a full end-to-end test of the NACES and FAST electronic sequencers used on the NACES ejection seat. The O/ITS provides simulated inputs and measures the timing of initiator firing sequencer outputs. The O/ITS, via a serial channel in the test connector, performs discrete element diagnostics on all the sequencer's redundant electronics and verifies its full functionality.
