The DCI-2 is a high-rate WDM transmission product. It supports multi-service and large-capacity transmission networking applications. It is mainly launched for the data center interconnect of operators and Internet enterprises, and can also be applied to local networks/Metropolitan area network convergence layer and access layer long-distance network transmission applications. The chassis is only 2U, with 8 general service slots, and the performance of a single slot can be flexibly expanded to meet different service needs. It adopts advanced hardware architecture and no mid-board design, which improves the ventilation and heat dissipation capacity of the equipment, and the single slot capacity is up to 800Gbps, the full system supports a maximum of 3.2Tbps electrical layer processing capacity, providing customers with various transmission solutions with different capacities, different transmission distances, and intelligent business applications.