HTF DWDM equipments deployed in Oversea data center

5 point to point ring Network, use 400G muxponder card+ edfa + OLP + MUX DEMUX.

With this design, help HTF overseas data center customer expand the capacity easily, and can do the protection witih OLP.
Future can expand to 40*400G=16000G with using AWG card. and just need add the 400G muxponder card and optical module base on the capacity requirement.