| Acronym | Meaning |
| CRYO | Cryogenic |
| SID | Standard Interface Document |
| IC/ES | Intercommunication/Emergency Station |
| DPP | Data Processing System (Subsystern) |
| TMBU | Table Maintenance Block Update |
| KBPS | Kilobits Per Second |
| PCB | Power Circuit Breaker |
| PRS | Personnel Rescue Service |
| PFRT | Preliminary Flight Rating Test |
| CTM | Crystalline Transitional Material |