 |
| German | English |
| Bitraten der digitalen Hierarchie | digital hierarchy bit rates |
| digitale Hierarchie | digital hierarchy (ITU-T (CCITT) Rec. G.702) |
| plesiochrone digitale Hierarchie | plesiochronous digital hierarchy |
| Synchron-Digital-Hierarchie-Standard | SDH standard (ITU-T (CCITT) Rec. G.707-709 155 Mbit/s, radio link, FO) |
| synchrone digitale Hierarchie | synchronous digital hierarchy |