OTN technology

Hi there!
The cross-connect module receives data of each service board through the backplane, performs electrical grooming of the VC-4/ODUk (k=0, 1, 2, 2e, 3, 4, or flex) service, and then sends the service to each service board. In this manner, the cross-connect module implements service cross-connection.

For detailed cross-connection principles, you can refer to the SDH cross-connection process because they are time-division cross-connections. So the principle is the same.

https://patents.google.com/patent/US6693902B1/en

Thank you!