| ASDL | Asymmetric Digital Subscriber Line [engl.] Schnelle Datendienste über vorhandene Kupferkabel mit unterschiedlichen Datenraten in den beiden Übertragungsrichtungen |
| PDSL | Power Line Digital Subscriber Line |
| SDSL | Single line Digital Subscriber Line |
| DSL | Digital Subscriber Line |
| IDSL | ISDN Digital Subscriber Line |
| T-DSL | Telekom Digital Subscriber Line |
| EDSL | Ethernet Digital Subscriber Line |
| FDSL | Flexible Digital Subscriber Line |
| WDSL | Wireless Digital Subscriber Line |
| DSLB | Digital Subscriber Line Board |
| BDSL | Broadcast Digital Subscriber Line [engl.] Schneller Internetzugang über Rundfunkdienste |
| LDSL | Low Speed ISDN Digital Subscriber Line |
| RADSL | Rate Adaptive Digital Subscriber Line |
| CDSL | Consumer Digital Subscriber Line [engl.] |
| DSLAM | Digital Subscriber Line Access Multiplexer |
| RDSL | Residential / Reverse Digital Subscriber Line |
| UDSL | Unidirectional / Universal Digital Subscriber Line |
| MADSL | Margin Adaptive Digital Subscriber Line |
| ADSL | Asymmetrical Digital Subscriber Line // Loop [engl.] Teilnehmer-Anschluss mittels Telefonkabel |
| VHDSL | Very High Bit Rate / Speed Digital Subscriber Line |
| VDSL | Very High Data Rate Digital Subscriber Line |
| MDSL | Medium Bit Rate/Multirate Digital Subscriber Line |
| SDSL | Single Line / Single Pair / Symmetric Digital Subscriber Line |
| SHDSL | Single-pair High Speed Digital Subscriber Line |
| RSLE | Remote Subscriber Line Equipment |
| RSLM | Remote Subscriber Line Module |
| DSS | Digital Subscriber Signalling |
| EDSS | European Digital Subscriber System |
| HDSL | High rate Digital Subscriber Link |
| DPL | Digital Power Line |
| DLG | Digital Line Graph |
| DLTU | Digital Line/Trunk Unit |
| DLCU | Digital Line Carrier Unit |
| DCLU | Digital Carrier Line Uint |
| BAC | Binary Asymmetric Channel |
| OAEP | Optimal Asymmetric Encryption Padding |
| AMP | Asymmetric Multi Processing [engl.] |
| ATSP | Asymmetric Traveling Salesman Problem [engl.] Mathematisches Problem der Wege-Optimierung unter Beachtung weiterer Einschränkungen |
| SN | Subscriber Number |
| SCM | Subscriber Carrier Module |
| OPSM | Outside Plant Subscriber Module |
| MSE | Mobile Subscriber Equipment |
| ABS | Absent Subscriber [engl.] Teilnehmer nicht erreichbar [Telefon] |
| STD | Subscriber Trunk Dialing |
| MSN | Multiple Subscriber Number |
| DVI-D | Digital Video Interface Digital only |
| SIM | SIM-Karte [Subscriber Identity Module] |
| SWING | Subscriber Wireless Network Gateway |
| USIM | Universal Subscriber Identification Module |
| ASAM | ATM Subscriber Access Multiplexer [engl.] |