The AC4451 Gigabit Ethernet Media Converter provides a flexible high-performance solution for a fast and easy transition from Gigabit Ethernet over fiber to Gigabit Ethernet over copper (RJ45) and vice versa. The unmanaged media converter has an open SFP slot for accommodating one singlemode or multimode uncoded SFP transceiver. Additionally, the Ethernet media converter features Link Fault Passthrough (LFP) for detecting link failures. Different work modes can be set by the on-board dip switches.