| Acronym | Meaning |
 | DABS | Discrete Address Beacon SYstem |
| MON | Monitor |
| EXCH | Exchange |
| UPS | Uninterruptible Power Supply |
| POCN | Purchase Order Change Notice |
| MORD | Medical Operations Requirements Document |
| R&DO | Research And Development Operations (MSFC) |
| FD | Flight Deck |
| MACDS | Monitor And Control Display System |
| BTC | Binary Time Code |
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