sm fiber meaning in Chinese

单条单模光纤

1 . for sm fiber coupling , the customer has to offer the sm fiber with connector
1 .对于单模光纤耦合，需要客户自己提供单模光纤及连接器，
To realize the multi - service transport ability in metro wdm networks , we have built a platform based on sdh / wdm in chapter 3 . the platform composes of sdh & wdm equipments at two nodes which connected by only one 50km sm fiber . some vlan modules are inserted , and the sdh forms a single - fiber bidirectional lan to transport ip service . some coders / decoders of video are connected to the modules to finish the video service transport
在第四章，我们提出两种保护方案： sfvpp保护方案充分利用光纤的波分复用特性，针对复杂的网络结构，把不同波长通道业务划分成不同虚拓扑(虚环网) ，综合利用wdm环网光层保护策略，实现网络中不同的环网综合保护。