 |
| |||
| open-circuit signaling; open-circuit signalling | |||
| direct current signaling; direct current signalling; DC signaling; DC signalling | |||
|
likstromssignalering : 2 צירופים, 1 נושאים |
| תקשורת | 2 |
|
| |||
| open-circuit signaling; open-circuit signalling | |||
| direct current signaling; direct current signalling; DC signaling; DC signalling | |||
|
likstromssignalering : 2 צירופים, 1 נושאים |
| תקשורת | 2 |