光缆通信在我国已有20多年的使用历史，这段历史也就是光通信技术的发展史和光纤光缆的发展史。光纤光缆在我国的发展可以分为这样几个阶段：对光缆可用性的探讨；取代市内局间中继线的市话电缆和pcm电缆；取代有线通信干线上的高频对称电缆和同轴电缆。-cable communications in China has more than 20 years of use history, this is history - the development of ICT and in the history o

Testing optical fiber communication ber adopts serial RS232 interface, connected to the lower machine, through the optical fiber transmission in the middle