DSx (Digital Signal X)
A standard for signaling and multiplexing of data on digital communications circuits.
The DSx standard is derived from: ANSI T1.107.
DSx data rates are multiples of one DS0 = one 64 Kbps channel.
A DS0 normally carries one phone voice channel or 64Kbps of data.
A DS3 (also known as a T3 Line) is an ultra high-speed connection that is capable of transmitting data at rates as fast as up to 45 Mbps which is equivelent to 28 T1 circuits.
| ID | Speed | Num DS0 | E/T Equiv |
| DS0 | 64 Kbps | 1 | – |
| DS1 | 1.544 Mbps | 24 | T1 |
| – | 2.048 Mbps | 32 | E1 |
| DS1c | 3.152 Mbps | 48 | – |
| DS2 | 6.312 Mbps | 96 | T2 (4 T1) |
| – | 8.448 Mbps | 128 | E2 (4 E1) |
| – | 34.368 Mbps | 512 | E3 (4 E2 or 16 E1) |
| DS3 | 44.736 Mbps | 672 | T3 (28 T1) |
| – | 139.264 Mbps | 2048 | E4 (4 E3 or 64 E1) |
| DS4/NA | 139.264 Mbps | 2176 | – |
| DS4 | 274.176 Mbps | 4032 | – (168 T1) |
| – | 565.148 Mbps | 8192 | E5 (4 E4 or 256 E1) |
April 7, 2023
Phone System 