| Acronym | Meaning |
![](file.png) | PUCS | Propellant Utilization Control System |
![](file.png) | O/L | Overload |
![](file.png) | FCPS | Fuel Cell Power System (Subsystem) |
![](file.png) | ISPG | Institutional Support Planning GrouP |
![](file.png) | GCN | Ground Communications Network (A/G Worldwide Net) |
![](file.png) | UUT | Unit Under Test |
![](file.png) | CSM | Computer Status Matrix |
![](file.png) | LWR | Lower |
![](file.png) | MCIU | Manipulator Controller Interface Unit |
![](file.png) | FEID | Flight Equipment Interface Device |