Dear friend!
The cross-connect capacity of a product refers to the capacity or capability of the cross-connect board to forward service signals. The maximum line rate refers to the maximum line board bandwidth supported by the product.
The cross-connect capacities of the OTN, TDM, and packet cross-connect boards vary because different users have different requirements on the types of services to be transmitted. You need to select the most appropriate cross-connect board according to your requirements.
Thanks!