2-pair UTP/STP of Cat. 5 or above (<100 m)

TP-LINK (TL-FC111PB-20) 10/100 Mbps WDM Media Converter with 1-Port PoE, up to 20km, 802.3u 10/100Base-TX, 100Base-FX, Single-Mode, Half-Duplex/Full-Duplex