 |
| |||
| double current signaling (ssn); double current signalling (ssn) | |||
| polarized working | |||
| double-current signaling | |||
| двухполюсная передача: 1 Phrase in 1 Thematik |
| Technik | 1 |
|
| |||
| double current signaling (ssn); double current signalling (ssn) | |||
| polarized working | |||
| double-current signaling | |||
| двухполюсная передача: 1 Phrase in 1 Thematik |
| Technik | 1 |