| Acronym | Meaning |
| LN | Line |
| LSE | Life Support Equipment |
| MIO | Management Integration Office |
| PMIA | Parallel Multiplexer Interface Adapter |
| WA | Work Authorization |
| MM | Major Mode Or Mass Memory |
| PIC | Pyro Initiator Capacitors |
| TPF | Terminal Phase Finalization (Braking) |
| FTR | Functional Test Requirement |
| LSB | Least Significant Bit |