"This unit offers cost-efficiency for extending distances up to 2km (multi-mode fiber) and 120km (single mode fiber). The IRF-629 enables network managers to install fiber cabling anywhere within an existing network environment without the removal, replacement or modification of the current copper-based RS-422/485 infrastructure. Plus, it is capable of 4-wire and 2-wire operations via DIP switch. Simply use the DIP switch to adapt to different cabling environments (e.g.4-wire or 2-wire).
The converter is ideal for connecting data communication devices situated in manufacturing-intensive environments where electromagnetic and radio-frequency interference is a major concern. Data integrity is also assured because the characteristics of fiber-optic cables make any break in transmission integrity immediately detectable."