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 DS0s are in an OC-48?

An OC-48 carries 32,256 DS0s, per Telcordia GR-253 and ANSI T1.107.

32,256

DS0s in an OC-48

Working

OC-48 → 48 × OC-1 (STS-1) → 28 × DS1 → 24 × DS0

48 × OC-1 (STS-1) in each OC-48 Telcordia GR-25348 × OC-1 (STS-1). Channelized OC-48 is 48 STS-1s.
28 × DS1 in each OC-1 (STS-1) Telcordia GR-253Seven VT groups × four VT1.5 (DS1).
24 × DS0 in each DS1 ANSI T1.10724 payload timeslots. The framing bit adds 8 kbit/s and brings the line rate to 1.544 Mbit/s.

48 OC-1s
48 × 28 = 1,344 DS1s
48 × 28 × 24 = 32,256 DS0s

Leftover capacity

423.936 Mbit/s of each OC-48 line rate (2.488320 Gbit/s) sits outside 32,256 × 64 kbit/s of DS0 line rate (2.064384 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 38,880, which floors to 38,880 DS0s by bit rate only. The standard mapping is 32,256. Use the mapping.

Share this result. Pairing page