| Acronym | Meaning |
| PBIM | Programmable Buffer Interface Module |
| SHA | System Hazard Analysis |
| NARS | National Archives And Record Services |
| PSP | Payload Signal Processor |
| DDR | Design Development Record |
| BDA | Blast Danger Area |
| IFRU | In-Flight Replacement Unit |
| MO | Move |
| FO/FS | Fail-Operational/Fail-Safe |
| MIA | Multiplexer Interface Adapter |