This Recommendation gives the characteristics of a synchronous digital multiplex equipment, to combine up to 31 tributary channels at 64 kbit/s or n x 64 kbit/s in a 2048 kbit/s digital stream.

 
  • 本建议给出了一种同步数字复用设备的特性,它能将多达31个64 kbit/s 的支路合并成2048 kbit/s 的数字流。
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