Cisco 3GE-GBIC-SC

Cisco 3GE-GBIC-SC GSR 12000 3-Port Gigabit Ethernet Line Card, can be configured with up to three of the following interface types: a 1000BASE-SX multimode fiber interface with up to a 550-meter reach, a 1000BASE-LH single-mode fiber interface with up to a 10-km reach, or a 1000BASE-ZX single-mode fiber interface with up to a 70-km reach