| |||
| Hauptkoppelfeld n (System 12); Teilkoppelfeld n (exchange) | |||
| Gruppenkoppler m; Gruppenschalter m | |||
| Bündelweiche f | |||
|
group switch : 8 phrases in 5 subjects |
| Communications | 1 |
| Measuring instruments | 1 |
| Optics branch of physics | 1 |
| Technology | 4 |
| Telecommunications | 1 |