| General | |
| Brand | TP-Link |
| Model | TL-FC311B-20 |
| HARDWARE FEATURES | |
| Interface | 1× Gigabit SC Fiber Port 1× 10/100/1000 Mbps RJ45 Port (Auto MDI/MDIX) |
| Main Features | |
| Network Standard | IEEE 802.3, IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3x, IEEE 802.3z |
| Environment | Operating Temperature 0˚C to 50˚C (32˚F to 122˚F) Storage Temperature -40˚C to 70˚C (-40˚F to 158˚F) Operating Humidity 10% to 90% RH non-condensing Storage Humidity 5% to 90% RH non-condensing |
| Power | |
| Power Supply | External Power Adapter: 5 V/0.6 A |
| Physical Design & Dimensions | |
| Dimensions (W x H x D) | 3.7 × 2.9 × 1.1 in (95 × 73 × 27 mm) |
| LED Indicators | PWR, Link/Act |
| Warranty Information | |
| Warranty | 01-Year |
The TP-Link TL-FC311B-20 Gigabit WDM Media Converter is a high-performance networking device designed to bridge the gap between traditional copper Ethernet and modern fiber-optic networks, offering reliable and cost-effective long-distance data transmission for a variety of commercial and industrial applications. Whether you’re expanding your business network, deploying remote surveillance systems, or connecting buildings across a campus, this media converter delivers stable Gigabit connectivity over extended distances.
At its core, the TL-FC311B-20 features a 10/100/1000 Mbps auto-negotiation RJ45 copper port and a Gigabit SC fiber port, allowing seamless conversion between electrical Ethernet signals and optical fiber signals. This hybrid connectivity lets you extend your LAN infrastructure without sacrificing speed or performance. The RJ45 port also supports Auto-MDI/MDIX, simplifying installation by removing the need for crossover cables.
One of the standout features of the TL-FC311B-20 is its use of WDM (Wavelength Division Multiplexing) technology. Unlike traditional fiber devices that require two separate fiber strands for sending and receiving data, WDM lets this converter both transmit and receive signals over a single fiber strand using different wavelengths (1310 nm for transmission and 1550 nm for reception). This effectively cuts fiber cabling costs in half while delivering long-distance connectivity of up to 20 km over single-mode fiber.
In practical terms, this makes the TL-FC311B-20 ideal for video surveillance, wireless networking backhaul, building-to-building connectivity, or any scenario where you need robust, long-reach Gigabit links without expensive fiber deployments. It supports both half- and full-duplex modes, automatically negotiating the best link performance for connected devices.
The unit is compact and easy to deploy either as a standalone converter or as part of a larger rack-mounted solution when paired with optional accessories. Its external power adapter (5 V, 0.6 A) ensures efficient power usage, and the tough metal housing offers durability for everyday networking environments.
With simple plug-and-play operation, industry-standard compliance (IEEE 802.3 series), and support for fiber distances that far exceed typical copper Ethernet limits, the TL-FC311B-20 delivers a cost-effective, future-ready networking solution for enterprises, service providers, and modern IT infrastructures.
