WAN Connection Speeds
Digital Signal Levels for Copper | ||||||
Level | North America | Europe | Japan | |||
Circuits | Speed | Circuits | Speed | Circuits | Speed | |
| DS-0 | 64 K | 1 | 64 K | 1 | 64 K | |
| T-1 (DS-1) | 24 | 1.544 M | 30 | 2.048 M | 24 | 1.544 M |
| T-1C | 48 | 3.152 M | none | none | none | none |
| T-2 (DS-2) | 96 | 6.312 M | 120 | 8.448 M | 96 | 6.312 M |
| T-3 (DS-3) | 672 | 44.736 M | 480 | 34.368 M | 480 | 32.064 M |
| T-4 (DS-4) | 4032 | 274.176 M | 1920 | 139.268 M | 1440 | 97.728 M |
| T-5 | none | none | none | none6760 | 400.352 M | |
Optical Conductor Trunk Levels | |||
| Optical Conductor Trunk Line Speeds are very easy to compute. The OC-1 is the building block for which all the OC levels are determined. An OC-3 is 155.52 Mbps, which is 3 * 51.840 Mbps. An OC-1 is the optical equivalent of a T3 circuit. It has more bandwidth on the line, but that extra bandwidth is used for switching. | Level | Speed | Call |
| OC-1 | 51.840 Mbps | 672 | |
| OC-3 | 155.52 Mbps | 2,016 | |
| OC-12 | 622.08 Mbps | 8,064 | |
| OC-48 | 2,488.32 Mbps | 32,256 | |
| OC-192 | 9,953.28 Mbps | 129,024 | |
| OC-256 | 13,271.04 Mbps | 172,032 | |
