layer 1
| D channel protocol
| layer 1 | |
| commun. comp. | Bitübertragungsschicht |
| D channel protocol | |
| commun. | D-Kanal-Protokoll |
| D-channel protocol | |
| commun. IT | D-Kanalprotokoll |
| |||
| Bitübertragungsschicht f | |||
|
layer 1 : 11 phrases in 3 subjects |
| Communications | 9 |
| Education | 1 |
| Electronics | 1 |