| Acronym | Meaning |
| M | ECCA Master Electrical Common Connector Assembly |
| NOSP | Network Operations Support Plan |
| DCV | Direct Current Volts |
| SPG | Signal Point Ground |
| DB | Decibel |
| OSDH | Orbiter System Definition Handbook |
| RPO | Radiation Protection Officer |
| ESR | Engineering Support Request |
| SID | Simulator Interface Devices |
| POST | Program To OPtimize Simulated Trajectories |