TP-Link TL-FC111B-20 WDM Media Converter

802.3u 10/100Base-TX, 100Base-FX standards, Auto-negotiation of Half-Duplex/Full-Duplex transfer mode, Bidirectional WDM communication on a single fiber, Ranges up to 20km (12.4 miles), Wave Length: 1310 nm TX, 1550 nm RX, FCC, CE, RoHS