低速数字系统LSDS ？
本文叙述了一种适用于低速数字信道的地址编码时分交换系统的新的电路方案。
A new circuit scheme for the address coded TDM switching system of low speed digital channels is discussed in this paper.
给出一种基于脉冲编码调制原理实现高速数字传输系统中低速设备接入的方法。
On the basis of PCM Encoding Theorem, a method for low rate equipments' imported into high rate digital transmission systems is given.
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