| Acronym | Meaning |
| TSC | Two-Stage Command |
| SACS | Systems Software Avionics Command SuPport |
| MTEO | Optical Maintenance Test Equipment |
| DBGMP | Data Bus Isolation Amplifier |
| DF | Development-Forward |
| TZ | Translation Hand Controller Z-Axis Direction |
| PETB | Preflight Test Bus |
| EO | Earth Orbit |
| IOE | Input/Output Error Log Table |
| GITG | Ground Interface Technical Group |