| Acronym | Meaning |
| ALS | Advanced Launch System |
| PKD | Programmable Keyboard And Display |
| HDC | HYbrid Device Controller |
| CBE | Connector Bracket |
| TCS | Test Control System |
| IARS | Independent Air Revitalization System |
| EPS | ExPerimental Power Supply |
| SDH | Software Development Handbook |
| SPPL | Spare Parts Provisioning List |
| RCHCS | Regenerable CO And Humidity Contro SYstem |