| Acronym | Meaning |
 | MCS | Measurements Calibration System |
| MSC | Master Sequence Controller |
| NET | NNET Network (N/W Preferred) |
| REOD | Required |
| SPCW | StoredProgramCommandWord |
| UWS | User Work Station |
| IGSE | In-Space Ground SUPPort Equipment |
| SSMECA | SSM E Controller Assembly |
| TARC | Test Article Specification |
| USB | Unified S-Band |
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