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Xenon Foundation 05
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Fall/1993 Issue: 5
INTRODUCTION TO BASIC DIGITAL TECHNOLOGY
Written by: Erik Turbo
File: 5 of 6
5. Digital Hierarchy
5.1 Digital Hierarchy Chart
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| LEVEL | BIT RATE | NO. OF VOICE | FACILITY | NUMBER OF | TYPE DSX |
| | | CIRCS. EQUIV. | | DIGROUPS | |
|----------------------------------------------------------------------------|
| | 1667 Mb/sec | 24192 | FT "G" | 1008 | LCIE |
| DS5 | 564.922Mb/s | 8064 | LTS 1565 | 336 | LCIE |
| | 417 Mb/s | 6048 | FT "G" | 252 | LCIE |
| DS4 | 274.176Mb/s | 4032 | LIGHTWAVE | 168 | LCIE |
| DS3C | 89.472 Mb/s | 1344 | LIGHTWAVE | 56 | LCIE |
| DS3 | 44.736 Mb/s | 672 | T3 OR LT | 28 |DSX-3/LCIE|
| DS2 | 6.312 Mb/s | 96 | T2 | 4 | DSX-2 |
| DS1C | 3.152 Mb/s | 48 | T1C | 2 | DSX-1C |
| DS1 | 1.544 Mb/s | 24 | T1 | 1 | DSX-1 |
| DS0 | 64 Kb/s | 1 | -- | -- | |
|____________________________________________________________________________|
| SUB RATES - DATA ONLY |
|____________________________________________________________________________|
| | 56 Kb/s | | | | |
| | 9.6 Kb/s | | | | |
| | 4.8 Kb/s | | | | |
| | 2.4 Kb/s | | | | |
|____________________________________________________________________________|
LCIE = Lightguide Interconnect Equipment
> The baisc unit of the hierarchy is the DS1 signal - which is a 24 channel,
TDM, 1.544 Mb/s signal.
> The number of voice channels carried of the other digital signal levsls are
direct multiples of the basic DS1 signal.
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EOF ---------------- Xenon Foundation Productions 1993 -------------------EOF
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