OTM inserts SDH and other service signals into DWDM lines through multiplexing units and separates them from DWDM lines through demultiplexing units. OTM site mainly includes multiplexing/demultiplexing unit, optical amplification unit, wavelength conversion unit and optical monitoring unit.

OTM teaching method ends:

That is, target teaching method, which is a new international education learning model, is widely used in the subject education of primary schools, middle schools and universities in Europe and America. Hampson Yang's tutor innovatively applied this teaching method to local English training.

Relying on the only largest foreign teacher training center in China to enrich foreign teachers' resources and integrating Hampson's concept of "tailor-made", we will create a complete set of perfect learning system of "assessment, grading, objectives, courses, assessment and standards" for foreign teachers, and truly create a practical and efficient learning effect of "one class is worth ten classes".