| Acronym | Meaning |
| GSA | General Services Administration |
| O/V-U/V | Over Voltage/Under Voltage |
| MDM | Multiplexer/Demultiplexer |
| SSCHS | Space Shuttle Cargo Handling System |
| F | Farad (SI Unit Of Capacitance) |
| COMR&DSAT | Communication Research And Development Satellite |
| EC | Events Coupler |
| RANN | Research Applied To National Needs |
| DB | Distribution Box |
| RFA | Request For Action |