| European | Speed | Equals |
|---|---|---|
| E0 | 64 Kbs | 1 E0 |
| E1 | 2.048 Mbs | 32 E0 |
| J1 | 2.048 Mbs | |
| E2 | 8.45 Mbs | 128 E0 |
| E3 | 34 Mbs | 16 E1 |
| E4 | 140 Mbs | 64 E1 |
| North American | Speed | Equals |
| T0 / DS0 | 64 Kbit | 1 DS0 |
| T1 / DS1 | 1.544 Mbs | 24 DS0 |
| T2 / DS2 | 6.3 Mbs | 96 DS0 |
| T3 / DS3 | 45 Mbs | 28 DS1 |
| SDH | SONET | Speed |
| - | OC1 | 51.84 Mbs |
| STM1 | OC3 | 155.52 Mbs |
| OC9 | 466.56 Mbs | |
| STM4 | OC12 | 622.08 Mbs |
| OC18 | 933.12 Mbs | |
| - | OC24 | 1244.14 Mbs |
| OC36 | 1866.24 Mbs | |
| STM16 | OC48 | 2488.32 Mbs |
| OC96 | 4976.64 Mbs | |
| STM64 | OC192 | 9953.28 Mbs |
| OC768 | 39813.12 Mbs |