本文扼要的介绍了脉冲编码传输设备的原理，其中包括有话路、定时、同步、编译码和帧结构。
This paper gives a brief description of the design principles of a PCM multiplex terminal for fibre-optic communication, namely, speech channel, timing, synchronization, coding decoding and format.
详细探讨了基于RPR的MSR的工作机理，包括协议栈和帧结构、节点功能结构、组网应用等几个方面。
This article discusses the working mechanism of RPR-based MSR with protocol stack frame structure node function and networking included.
这个充分条件对LA码的序列设计和采用LA码的系统帧结构的设计都有着重要的意义。
This sufficiency condition is important for the design of LA code and the frame structure of the system in which LA code is used.
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