| Circuit | Bearer (B) Channels 64 Kb/s |
Data (D) Channel |
Bandwidth | Comments | |
|---|---|---|---|---|---|
| BRI | 2 | 16 Kb/s | 144 | Kb/s | Basic Rate Interface |
| PRI - NA | 23 | 64 Kb/s | 1.544 | Mb/s | Primary Rate Interface - North America |
| PRI - EUR | 30 | 64 Kb/s | 2.048 | Mb/s | Primary Rate Interface - Europe |
| Circuit | Voice Channels |
Bandwidth | Comments | |
|---|---|---|---|---|
| DS0 | 1 | 64 | Kb/s | |
| DS1 | 24 | 1.544 | Mb/s | |
| DS1C | 48 | 3.152 | Mb/s | |
| DS2 | 96 | 6.312 | Mb/s | DS1 x 4 |
| DS3 | 672 | 44.736 | Mb/s | DS1 x 28 |
| DS4 | 4032 | 274.176 | Mb/s | DS3 x 6 |
| Circuit | Voice Channels |
Bandwidth | Comments | |
|---|---|---|---|---|
| E1 | 30 | 2.048 | Mb/s | |
| E2 | 120 | 8.448 | Mb/s | E1 x 4 |
| E3 | 480 | 34.368 | Mb/s | E2 x 4 |
| E4 | 1920 | 139.264 | Mb/s | E3 x 4 |
| E5 | 7680 | 565.148 | Mb/s | E4 x 4 |
| Circuit | Voice Channels |
Bandwidth | Comments | |
|---|---|---|---|---|
| OC1 | 672 | 51.84 | Mb/s | DS3 |
| OC3 | 2016 | 155.52 | Mb/s | OC1 x 3 |
| OC12 | 8064 | 622.08 | Mb/s | OC3 x 4 |
| OC48 | 32256 | 2.49 | Gb/s | OC12 x 4 |
| OC192 | 129024 | 9.6 | Gb/s | OC48 x 4 |