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 an OC-192?

An OC-192 carries 1,344 DS2s, per Telcordia GR-253.

1,344

DS2s in an OC-192

Working

OC-192 → 192 × OC-1 (STS-1) → 7 × DS2

192 × OC-1 (STS-1) in each OC-192 Telcordia GR-253192 × OC-1 (STS-1). Channelized OC-192 is 192 STS-1s.
7 × DS2 in each OC-1 (STS-1) Telcordia GR-253Seven VT groups, one VT6 (DS2) each.

192 OC-1s
192 × 7 = 1,344 DS2s

Leftover capacity

1.469952 Gbit/s of each OC-192 line rate (9.953280 Gbit/s) sits outside 1,344 × 6.312 Mbit/s of DS2 line rate (8.483328 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 1,576.88, which floors to 1,576 DS2s by bit rate only. The standard mapping is 1,344. Use the mapping.

Share this result. Pairing page