| Acronym | Meaning |
 | IUE | Interface Unit Error Count Table |
| GUCP | Ground Umbilical Carrier Plate |
| OBS | Operational Bioinstrumentation System |
| SF | Signaling Frequency |
| NTS | Not To Scale |
| PSS | Payload Specialist Station |
| SRA | Spin Reference Axis |
| DRA | Data Release Authorization |
| FDS | Fluid Distribution System |
| CTIS | Crawler Transporter Intercom System |
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