| Acronym | Meaning |
| PVR | Precision Voltage Reference |
| SIG | GEN Signal Generator |
| VTR | Video Tape Recorder |
| MCCS | Mission Control Center Simulation (System) |
| MA&P | Maintenance Analysis And Planning |
| M+R | Time In Days Before Move Operations |
| DG | Display Generator |
| EIVT | Electronic Installation Verification Test |
| SCB | Selection Control Board |
| PRS | Provisioning Requirements Statement |