GTN6800-W platform is a series of compact platforms developed according to the characteristics of communication subsystem products, includes GTN6800-W1,GTN6800-W2,GTN6800-W5,which is the basis of DWDM Transmission products integration. The platforms are compatible with different kinds of service cards, such as, EDFA, EYDFA, OEO, OLP, FEC, RAMAN, VPON REPEATER, VPON VMUX, passive module and so on. Those platforms are characterized by high compact structure, flexible configuration, low power consumption, and supporting network management of C/S architecture with simple maintenance. It is widely used in metro transport fields of operators, power, radio and television, etc. It builds a multi-service access platform and one-stop solutions for customers.