基本光纤子系统由一个光发送机一个光接收机和光纤链路串连组成的系统它提供了上述单元之间的光学通道
The basic optical fiber subsystem consists of an optical transmitter, an optical receiver and a series of optical fiber links that provide the optical channel between the above units
以上为机器翻译结果，长、整句建议使用 人工翻译 。