How many OC-1s are in an OC-3?

Working

OC-3 → 3 × OC-1 (STS-1)

1. 3 × OC-1 (STS-1) in each OC-3 Telcordia GR-2533 × OC-1 (STS-1). Channelized OC-3 is 3 STS-1s.

• 3 OC-1s

Leftover capacity

0 bit/s of each OC-3 line rate (155.520 Mbit/s) sits outside 3 × 51.840 Mbit/s of OC-1 line rate (155.520 Mbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.

OC-3 reference · OC-1 reference · Open in the converter