Huawei OSN2500 Product Overview Huawei OSN2500 SDH intelligent optical transmission system inherits all the characteristics of MSTP technology, and is compatible with traditional SDH and MSTP networks. It integrates SDH, PDH, Ethernet, WDM, ATM, ESCON, FC/FICON, DVB-ASI (Digital Video Broadcast- Asynchronous Serial Interface), RPR and other technologies as a new generation of 2.5G/622M multi-service optical transmission platform (MSTP), mainly used in the convergence and access layer of the metropolitan area network, for the existing SDH equipment to intelligent optical network equipment The transition provides a complete solution. Huawei OSN2500 SDH is applied to the access layer and aggregation layer in the metropolitan area transmission network, and can be used with OptiX OSN9500, OptiX OSN7500, OptiX OSN3500, OptiX OSN35001I, OptiX OSN2500 REG, OptiX OSN1500, OptiX 2500+ (Metro3000), OptiX 155/622H (Metro1000) hybrid networking, to achieve access to services of different capacities. OSN2500 supports network topologies such as STM-1/STM-4/STM-16/level chain, ring, ring tangent, ring intersection, ring belt chain, double ring interworking, hub and mesh networks. It can also be connected with Huawei OSN series equipment, DWDM series equipment and Metro series equipment to build a complete transmission network solution. Huawei OSN2500 SDH Product Feature Cost-effective platformization OptiX OSN 7500/3500/2500/1500 boards and software are fully compatible and constitute a unified platform. This can greatly reduce maintenance costs and the cost of spare parts. The OSN intelligent platform is efficiently combined in terms of service capabilities, giving operators the most cost-effective solution, at the same time, it can be mixed with Huawei’s existing equipment and can be included in Huawei’s optical network management solution for unified management Large capacity scheduling Support 20G high and low order full crossover: high order 128?128 VC-4, low order 8064?8064 VC-12 or equivalent VC-3 crossover capability. Multi-service provision Service interface Support STM-1(O/E), Support STM-4/16 standard or cascade service, Support E1/T1/E3/T3/E4, Support transparent transmission and exchange of FE and GE services, Support ATM service, Support IMA service, Support SAN service and video service. Provide fast end-to-end services based on GMPLS. Strong networking capability Support Mesh network node plug and play Support Mesh network online upgrade and expansion at any rate, Support up to 40 optical directions in Mesh network, Support a variety of SDH network topologies such as chain, ring, intersecting ring, and tangent ring, Support RPR, VP-RING ring network, The single subrack can realize 1?STM-64 four-fiber ring or 2?STM-16 four-fiber ring or 4?STM-16 two-fiber ring. Built-in WDM technology Provide dual-channel optical bifurcation multiplex boards, Provide any rate optical wavelength conversion board. Mesh recovery Support distributed recoverable rerouting protection, Provide 5 more detailed serviceprotection solutions, according to different SLA: Diamond, Gold, Silver, Bronze and Iron services.