Hope they prove to be useful to you. |
Digital Signal Level
Transmission Throughput US (ANSI) |
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Digital Signal Level | Throughput | Notes |
DS0 | 64 Kbps | 1 T1 Channel |
DS1 | 1.544 Mbps | 1 T1 (24 DSO's) |
DS1C | 3.152 Mbps | 2 T1's |
DS2 | 6.312 Mbps | 4 T1's |
DS3 | 44.736 Mbps | 28 T1's |
DS4 | 274.176 Mbps | 168 T1's |
DS1's are commonly referred to as T's - T Spans -
T1's. |
Digital Signal Level
Transmission Throughput European (CCITT or ITU) |
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Digital Signal Level | Throughput | US Equiv. |
E1 | 2.048 Mbps | 1 T1 |
E2 | 8.448 Mbps | 4 T1's |
E3 | 34.368 Mbps | 16 T1's |
E4 | 139.264 Mbps | 64 T1's |
It should be noted that the CCITT (Consultative Committee for International Telephony and Telegraphy) or the ITU (International Telecommunications Union) recognize DS0 through DS4 Signaling Levels. |