Quantity is how many containers you have. The result is how many tributaries fit, the path, and the leftover line rate. The choices stay in the URL, so you can share them.
Result: standard mapping
How many DS1s are in a STM-0?
A STM-0 carries 28 DS1s, per ITU-T G.707.
28
DS1s in a STM-0
Working
STM-0 → 28 × DS1
- 28 × DS1 in each STM-0 ITU-T G.707One VC-3 holds 7 TUG-2 × 4 TU-11 (DS1).
- 28 DS1s
Leftover capacity
8.608 Mbit/s of each STM-0 line rate (51.840 Mbit/s) sits outside 28 × 1.544 Mbit/s of DS1 line rate (43.232 Mbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.
By bit rate only
Dividing the line rates gives 33.57, which floors to 33 DS1s by bit rate only. The standard mapping is 28. Use the mapping.
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