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 DS2s are in a STM-16?

A STM-16 carries 336 DS2s, per ITU-T G.707 and ANSI T1.107.

336

DS2s in a STM-16

Working

STM-16 → 16 × STM-1 → 3 × DS3 → 7 × DS2

16 × STM-1 in each STM-16 ITU-T G.70716 × STM-1.
3 × DS3 in each STM-1 ITU-T G.707Three VC-3s, each able to carry a DS3.
7 × DS2 in each DS3 ANSI T1.107M13 multiplex: seven DS2s.

16 STM-1s
16 × 3 = 48 DS3s
16 × 3 × 7 = 336 DS2s

Leftover capacity

367.488 Mbit/s of each STM-16 line rate (2.488320 Gbit/s) sits outside 336 × 6.312 Mbit/s of DS2 line rate (2.120832 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.

By bit rate only

Dividing the line rates gives 394.22, which floors to 394 DS2s by bit rate only. The standard mapping is 336. Use the mapping.

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