PMC is an industry leader in SONET/SDH Optical Transport solutions, delivering a complete portfolio of SONET/SDH Framers, ADM-on-a-Chip solutions scaling from OC-3/STM-1 to OC-192/STM-64, and a family of SONET/SDH switching elements scaling to 640Gbps with switching granularity down to VT/TU. These products enable optical transport equipment suppliers to design and deploy low power, low chip-count architectures suited for Metro Access, Aggregation and Core SONET/SDH optical networking.