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 STM-16s are in an OTU1?
An OTU1 carries 1 STM-16, per ITU-T G.709. This is a client mapping of STM-16 into ODU1.
1
STM-16 in an OTU1
Working
OTU1 → 1 × ODU1 → 1 × STM-16
- 1 × ODU1 in each OTU1 ITU-T G.709The OTU1 frame carries exactly one ODU1. The line-rate gap is OTU overhead and FEC.
- 1 × STM-16 in each ODU1 ITU-T G.709Client mappingCBR STM-16 mapped into OPU1.
- 1 ODU1
- 1 × 1 = 1 STM-16
Leftover capacity
177.737143 Mbit/s of each OTU1 line rate (2.666057143 Gbit/s) sits outside 1 × 2.488320 Gbit/s of STM-16 line rate (2.488320 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.
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