| SDSL | Symmetric Digital Subscriber Line | 对称数字用户线路 |
| SDSL | Symmetric Digital Subscriber Line | 对称数字用户线路 |
| SDSL | Single-line DSL | HDSL的单线版 |
| SDSL | Synchronous Digital Subscriber Line | 同步数字用户线 |
| SDSL | Single-Pair Digital Subscriber Line | 单对数字用户线 |
| SDSL | Single-line Digital Subscriber Line | 单线数字用户线 |
| SDSL | Seismic Data System Library | 地震数据系统库 |