Digital Signal Designation

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Digital Signal Designation is the classification of digital bandwidth used in transport from one location to another in telecommunications.

Contents

[edit] Digital signal line rates

[edit] North America

Digital Signal Designation Bandwidth/data rate Channels (DS0s) Carrier designation
DS0 64 kbit/s 1
DS1 1.544 Mbit/s 24 T1
DS1C 3.152 Mbit/s 48 T1c
DS2 6.312 Mbit/s 96 T2
DS3 44.736 Mbit/s 672 T3
DS4 274.176 Mbit/s 4032 T4

[edit] Europe

Digital Signal Designation Bandwidth/data rate Channels (DS0s) Carrier designation
Signal Level 0 64 kbit/s 1
SL1 2.048 Mbit/s 30 E1
SL2 8.448 Mbit/s 120 E2
SL3 34.368 Mbit/s 480 E3
SL4 139.264 Mbit/s 1920 E4
SL5 565.148 Mbit/s 4032 E5

[edit] Optical carrier

See SONET for more information.


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