OMS/OCh Adaptation

The bidirectional OMS/OCh adaptation (OMS/OCh_A) functions are performed by a co-located pair of sources and sink OMS/OCh adaptation functions. The OMS/OCh adaptation source (OMS/OCh_A_So) performs the following processes between its input and its output:   

•modulation of an optical carrier signal by means of a defined modulation scheme 

•wavelength (or frequency) and power allocation to the optical carrier 

•optical channel multiplexing to form an optical multiplex  

The OMS/OCh adaptation sink (OMS/OCh_A_Sk) performs the following processes between its input and its output:  

•optical channel demultiplexing according to carrier wavelength (or frequency) 

•termination of the optical carrier and recovery of the optical transport unit