MuxRates

Result: standard mapping

How many STM-4s are in a STM-256?

A STM-256 carries 64 STM-4s, per ITU-T G.707.

64

STM-4s in a STM-256

Working

STM-256 → 64 × STM-4

  1. 64 × STM-4 in each STM-256 ITU-T G.70764 × STM-4.

Leftover capacity

0 bit/s of each STM-256 line rate (39.813120 Gbit/s) sits outside 64 × 622.080 Mbit/s of STM-4 line rate (39.813120 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.

STM-256 reference · STM-4 reference · Open in the converter