The Cisco uBR10012 OC-48 dynamic packet transport (DPT) and Packet-over-SONET interface module is a full-height line card for the Cisco uBR10012 universal broadband router. This card provides trunk uplink capabilities that support up to 1.4 Gbps full duplex throughput over a standard SONET/ITU-T Synchronous Digital Hierarchy (SDH) interface, using a single-mode fiber with SC connectors.The Cisco uBR10012 OC-48 DPT/POS interface module provides a point-to-point connection to a backbone router and encapsulates IP packets with byte-wise high level data link control (HDLC) framing, placing them directly into the OC-48 SONET (or SDH) payload.