| Acronym | Meaning |
 | SV | Safety Valve |
 | EMU | Extravehicular Mobility Unit |
 | DMS | Data Management System |
 | RTD | Rate Damping |
 | RTD | Resistance Temperature Device |
 | FDX | Full Duplex |
 | OSTS | Office Of Space Transportation Systems |
 | M | Isc Miscel Laneous |
 | MDM | Multiplexer/Demultiplexer |
 | SCF | Statistical Collection File |