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The Cisco ONS 15100 Series products are high performance, IP-aware optical systems ideally suited for scaling, managing and extending Packet-over-SONET (POS) and Resilient Packet Ring (RPR) networks. The Cisco ONS 15104 Optical Regenerator transmits OC-48/STM-16 optical signals over very long distances. The Cisco ONS 15194 IP Transport Concentrator is a superior scaling and management solution for OC-48c/STM-16c networks within service provider point of presence (PoP), regional metro, and metro access networks.