| Acronym | Meaning |
| POC | Purchase Order Closeout |
| RIC | Resistance Inductance And Capacitance |
| QCOP | Quality Control Operating Procedure |
| FT | Formal Training |
| STM | Signal Termination Module |
| PSU | Power Switching Unit |
| MDCS | Malfunction Display And Control System |
| K-IUSN | KSC [US Notice |
| ICDU | Inertial CouPling Data Unit |
| OWF | OPtimum Working Frequency |