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介绍一种 S12综合光纤传输系统的原理与应用 ,它既适用于 S12交换机远端用户模块局 ,也可兼做通用的光传输设备 ,用于 DDN、GSM等。
Introduces the principle and application of an S12 integrated optical fiber transmission system. It applies to the remote subscriber module office of the S12 switch and can also serve as a common optical transmission equipment for DDN, GSM, and so on.