How many OC-3s are in an OC-12?

Working

OC-12 → 4 × OC-3

1. 4 × OC-3 in each OC-12 Telcordia GR-2534 × OC-3. Channelized OC-12 is 12 STS-1s.

• 4 OC-3s

Leftover capacity

0 bit/s of each OC-12 line rate (622.080 Mbit/s) sits outside 4 × 155.520 Mbit/s of OC-3 line rate (622.080 Mbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.

OC-12 reference · OC-3 reference · Open in the converter