This paper gives a brief description of the design principles of a PCM multiplex terminal for fibre-opticcommunication, namely, speech channel, timing, synchronization, coding decoding and format.
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。
2
Coaxial and fibre-optic cables are popular communication lines for LANs because they provide fast data transmission and are easy to install.
同轴电缆与光纤缆线是局域网络常用的通讯线路，提供快速的数据传输，安装容易。
3
Fibreopticcommunication subsystem basic test procedures. part 2 - 5 : test procedures for digital systems. jitter transfer function measurement.