Convert and extend a gigabit ethernet connection up to 550 m 1804 ft over multimode lc fiber the et91000lc2 1000 mbps gigabit multimode fiber media converter lc 550m lets you extend a gigabit ethernet network over multimode fiber at distances up to 550m 1804 ft a cost effective solution for connecting a gigabit ethernet 1000base t network to remote network segments over a 1000base lxsx fiber backbone this gbe to mm fiber converter supports full gigabit speeds for ideal network