| Acronym | Meaning |
| SID | Standard Interface Document |
| PMU | Pulse Modulation Unit |
| MYVAL | MMYVALMaintainability Evaluation |
| GCDC | Ground Checkout Display And Control |
| IPS | Inverter Power Supply |
| MDE | Mission Dependent Experiment |
| SYMM | Symmetrical |
| SDR | Spacelab DisPosition Record (ESA) |
| SAG | E Stratospheric Aerosol Gas Experiment |
| DACBU | Data Acquisition And Control Buffer Unit |