| Acronym | Meaning |
| RSCIE | Remote Station Communication Interface Equipment |
| IMU | Inertial Measurement Unit |
| MVGVT | Mated Vertical Ground Vibration Test |
| CWE | Caution And Warning Electronics |
| MEIU | Main Engine Interface Unit |
| PCI | Product Configuration Identification |
| HFMU | High Fidelity Mockup |
| CICU | Computer Interface Control Unit |
| OEM | Original Equipment Manufacturer |
| CKS | Checks |