| Acronym | Meaning |
| OPI | Orbiter Payload Interrogator |
| HIGH | PressuHigh Pressure |
| I | DAS Integrated Data Acquisition System |
| NOT | ProvideNot Provided |
| IPS | IRIG-BInterrange Instrumentation Group B |
| CAPCOM | Capsule Communicator |
| RCCP | Recorder And Communications Control Panel |
| VRL | Vertical Recovery Line |
| ILS | IntegratedLogistics System |
| SIS | Shuttle Interface Simulator |