在国家经济与科技快速发展的影响下,网络通信技术得以快速发展,为更好的促进通信业务发展,OTN光输网络被研制出来,各个国家也正不断向大容量骨干光输网OTN网络建设努力。为做好大容量骨干光传输网OTN设备配置,本文将从OTN网络结构基本情况入手,研究其设备类型与保护方式。 Under the influence of the rapid development of national economy and science and technology, the network communication technology has been rapidly developed. In order to better promote the development of communication services, OTN optical transmission network has been developed, and various countries are also continuing to construct the OTN network with large capacity backbone Work hard. In order to do a good job of OTN equipment configuration of large-capacity backbone OTN, this article starts with the basic situation of OTN network structure and studies its equipment types and protection methods.