Digital Signal Designation
Digital Signal Designation is the classification of digital bit rates in the digital multiplex hierarchy used in transport of signals from one location to another in telecommunications.
Digital signal line rates
North America
| Digital Signal Designation | Bandwidth/data rate | Channels (DS0s) | Carrier designation |
|---|---|---|---|
| DS0 | 64 kbit/s | 1 | |
| DS1 | 1.544 Mbit/s | 24 | T1 |
| DS1 | 3.152 Mbit/s | 48 | T1c |
| DS2 | 6.312 Mbit/s | 96 | T2 |
| DS3 | 44.736 Mbit/s | 672 | T3 |
| DS4 | 274.176 Mbit/s | 4032 | T4 |
| DS5 | 400.352 Mbit/s | 5760 | T5 |
Europe
| Digital Signal Designation | Bandwidth/data rate | Channels (SL0s) | Carrier designation |
|---|---|---|---|
| Signal Level 0 | 64 kbit/s | 1 | |
| SL1 | 2.048 Mbit/s | 30 | E1 |
| SL2 | 8.448 Mbit/s | 120 | E2 |
| SL3 | 34.368 Mbit/s | 480 | E3 |
| SL4 | 139.264 Mbit/s | 1920 | E4 |
| SL5 | 565.148 Mbit/s | 7680 | E5 |
Optical carrier
See SONET for more information.
References
- Weik, Martin (6 December 2012). Fiber Optics Standard Dictionary. ISBN 9781461560234. Retrieved 6 August 2015.
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