OSN 7500 II is a new-generation optical transmission system developed by Huawei based on the current applications and development trend of MANs. It is an optical core switching (OCS) device applied to service scheduling nodes at the backbone layer of MANs.
OSN 7500 II adopts a unified switching architecture and can function as an MPLS/MPLS-TP-based packet device or a TDM device. When working with other devices of Huawei, OSN 7500 II supports various networking modes, including the pure packet mode, hybrid networking (packet + TDM) mode, and pure TDM mode, achieving optimal processing for packet services and traditional SDH services.
In TDM mode, OSN 7500 II supports 360 Gbit/s higher order cross-connect capacity and 40 Gbit/s lower order cross-connect capacity. In packet mode, OSN 7500 II supports 320 Gbit/s packet switching capacity.
OptiX OSN series products use a unified switching architecture, which can meet the requirements of conventional services and mushrooming packet services.
OSN 7500 II supports unified transmission of 40 Gbit/s packet and TDM services at a maximum distance of 80 km without optical amplifiers or dispersion compensation. The channel bandwidth can be flexibly adjusted based on the bandwidth of packet and TDM services, reducing the deployment costs of MANs.
OSN 7500 II provides a comprehensive solution for 3G/LTE mobile backhaul based on its packet domain to achieve convergence and scheduling of wireless services at the core layer.
OSN 7500 II uses the built-in WDM technology to transmit several wavelengths over an optical fiber. This feature allows OSN 7500 II to interconnect with WDM equipment to achieve flexible networking.
The TP-assist implements care-free maintenance solutions for packet transport networks (PTNs) based on the MPLS/MPLS-TP architecture. The OSN 7500 II provides a planning tool for PTNs, which enables end-to-end visible service configuration of media gateways and instrument-free site deployment. Moreover, the OSN 7500 II supports automatic fault locating and performance monitoring of packet services.