The TP-Link TL-FC111PB-20 is a high-performance 10/100 Mbps WDM media converter that bridges optical fiber and copper networks efficiently. Featuring a single 10/100 Mbps PoE RJ45 port compliant with IEEE 802.3af standard and a 100 Mbps SC fiber port, this device is designed for extending fiber optic networks up to 20 km using single-mode 9/125 μm fiber. Utilizing advanced Wave Division Multiplexing (WDM) technology, it transmits and receives data over a single fiber strand (TX at 1310 nm and RX at 1550 nm), reducing fiber cabling costs and complexity.

Ideal for long-distance surveillance camera deployments, the converter supplies power over Ethernet (PoE) to remote devices, simplifying installations by eliminating the need for additional power cables. It supports IEEE 802.3, 802.3i, and 802.3u standards with robust auto-negotiation for half/full duplex modes and Auto MDI/MDIX on the TX port. Status LEDs indicate power, link activity, and PoE operation for easy monitoring.

Built for reliability, the TL-FC111PB-20 operates under temperatures from 0 to 50 °C and can be stored in harsh conditions (-40 to 70 °C). The compact design (94.5 × 73.0 × 27.0 mm) allows for standalone use or rack installation with compatible TP-Link mounting solutions. Powered by an external 48 V/0.5 A adapter, it delivers an economical and efficient solution to extend network reach while powering devices remotely over fiber infrastructure.