The Cisco 10720 Internet Router provides network access using Ethernet and optionally Dynamic Packet Transport (DPT) technology for optical connectivity. Each router is equipped with one uplink card located in the upper card slot. The 2OC-48/STM-16c DPT uplink card is equipped with dual OC-48c/STM16c DPT uplink network ports with an aggregate bandwidth of 5 Gbps.This card supports the long reach of 80 km.