The Cisco OC-48 Dynamic Packet Transport (DPT) Interface Module Set for the Cisco uBR10012 provides the industry's first integrated high-speed optical interface for a CMTS. This new interface delivers scalable Internet service and reliable IP-aware optical transport to support the expanded bandwidth requirements of mass-market voice and commercial services. The OC-48 DPT interface is part of Cisco's Dynamic Packet Transport/Resilient Packet Ring (DPT/RPR) portfolio and enables a range of carrier-class optical internetworking solutions ideally suited for CMTS aggregation and commercial service applications.