network switching
| subsystem
| network switching | |
| radio | central nodal |
| -subsystem | |
| commun. IT | subsistema |
| subsystem | |
| comp., MS | subsistema |
| |||
| central nodal video | |||
|
network switching : 56 phrases in 5 subjects |
| Communications | 23 |
| Data processing | 4 |
| Electronics | 18 |
| Information technology | 10 |
| Technology | 1 |