| Acronym | Meaning |
| IOBPS | Input/Output Box And Peripheral Simulator |
| RJD | Reaction Jet Driver |
| RHFEB | Right Hand Forward EquiPment Bay |
| HMF | Horizontal Mating Facility |
| PTP | Point-to-Point Phone(s) |
| MTS | Master Timing System |
| SSITP | Shuttle System Integrated Test Plan |
| PRSD | Power Reactant Supply And Distribution |
| ITRDS | Integrated Test Requirements Documents |
| LCUG | Liquid Cooling Under Garment |