TSoP Smart SFP converts SONET/SDH traffic to packet streams, allowing SONET/SDH signals to be transported across packet networks transparently while maintaining protections and synchronization. It can replace SFPs in routers and switches. This simplifies configuration and service for SONET/SDH connections over packet networks, while reducing costs and complexity. TSoP Smart SFP supports OC-3/STM-1 and OC-12/STM-4 rates with reaches up to 80km.