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 OC-1s are in an OTU2?

An OTU2 carries 192 OC-1s, per ITU-T G.709 and Telcordia GR-253. This path maps OC-192 into ODU2 as a client, then follows that client's tributaries.

192

OC-1s in an OTU2

Working

OTU2 → 1 × ODU2 → 1 × OC-192 → 192 × OC-1 (STS-1)

1 × ODU2 in each OTU2 ITU-T G.709The OTU2 frame carries exactly one ODU2.
1 × OC-192 in each ODU2 ITU-T G.709Client mappingCBR OC-192, the same client rate as STM-64, mapped into OPU2.
192 × OC-1 (STS-1) in each OC-192 Telcordia GR-253192 × OC-1 (STS-1). Channelized OC-192 is 192 STS-1s.

1 ODU2
1 × 1 = 1 OC-192
1 × 1 × 192 = 192 OC-1s

Leftover capacity

755.945316 Mbit/s of each OTU2 line rate (10.709225316 Gbit/s) sits outside 192 × 51.840 Mbit/s of OC-1 line rate (9.953280 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 206.58, which floors to 206 OC-1s by bit rate only. The standard mapping is 192. Use the mapping.

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