The Huawei OptiX OSN1800 is a series of box architecture Multi-Service Optical Transport Network (MS-OTN) transmission equipment that supports Time Division Multiplexing (TDM), packet, and Optical Transmission Network (OTN) services over a metro or campus optical network. This equipment enables multiple high-bandwidth services (from 2 Mbit/s to 100 Gbit/s) to be delivered at less cost. The HUNQ2 board is a 4 x 10G Universal Line Service Processing Board applied to Huawei OSN 1800V and supports hybrid transmission of ODU0, ODU1, ODU2, ODU2e, ODUflex, VC-12, VC-3, VC4, and packet services with the total bandwidth not exceeding 40 Gbit/s. It can also receive and transmit only one or two of these services. The HUNQ2 board processes and converts the received service signals into four OTU2/OTU2e signals, which are carried over four ITU-T G.694.1-compliant DWDM wavelengths.