Convert and extend a 10100 mbps ethernet connection up to 12 miles2km over multi mode st fiber the et90110st2 10100 mbps multimode fiber media converter st 2 km lets you extend a fast ethernet network 10100 mbps over multimode fiber at distances of up to 2 km 12 miles a cost effective solution for connecting a 10100 mbps ethernet 10100base t network to remote network segments over a 100base fx fiber backbone designed to offer a durable and convenient ethernet to fiber sol