| Acronym | Meaning |
| PFK | Payload Function Key |
| SSPDA | Space Shuttle Payload Data Activity |
| LUCS | Instrumentation Update Command SYstem |
| N | Newton |
| IDD | Interface Definition Document(s) |
| E-MUX | Electrical Multiplex |
| KSC | Kennedy Space Center |
| RS | Redundancy Status |
| VDD | Verification Description Document |
| MP&C | Maintenance Planning And Control |