TP-Link FC311B-20 Gigabit WDM Media Converter
- 1 × 10/100/1000Mbps Auto-Negotiation RJ45 port supports Auto-MDI/MDIX
- Auto-negotiation of Half-Duplex/Full-Duplex transfer mode
- Adopts WDM technology, transmitting and receiving data on one single fiber
- Extends fiber distance up to 20 km

TL-FC311B-20 is a gigabit media converter, providing a gigabit RJ-45 port and a gigabit SC fiber port, which can convert between electrical and optical signals. And long-distance data transmission through optical fiber can be applied to commercial scenarios such as park security monitoring and wireless networking. TL-FC311B-20 adopts WDM (wavelength division multiplexing) technology, helping send and receive data at a distance of up to 20 km with only a single mode fiber, which saves half of the cable deployment cost for customers. TL-FC311B-20 transmits data at 1310 nm wavelength and receives data at 1550 nm wavelength on optical fiber. Therefore, the terminal device used in conjunction with the TL-FC311B-20 should send data at a wavelength of 1550 nm and receive data at a wavelength of 1310 nm. TP-Link another media converter TL-FC311A-20 is one of the products that can cooperate with TL-FC311B-20. Besides, this media converter can be used as a standalone device (no rack required) or used with TP-Link's TL-FC1420 rack for auto MDI/MDI-X in TX port in which duplex mode is automatically negotiated.
TP-Link TL-FC311B-20 Media Converter Features
- Gigabit Ports: 1- 10/100/1000Mbps Auto-Negotiation RJ45 port supports Auto-MDI/MDIX, allowing for seamless connectivity with different devices.
- Versatile Transfer Modes: Auto-negotiation of Half-Duplex/Full-Duplex transfer mode enhances the performance based on the connected network.
- WDM Technology: Adopts WDM technology, transmitting and receiving data on one single fiber, optimizing the use of existing fiber infrastructure.
- Extended Distance: Extends fiber distance up to 20 km, making it ideal for long-distance networking without compromising speed.
TP-Link TL-FC311B-20 Detailed Specifications
| Model | TP-Link TL-FC311B-20 |
| Port Type | 1- RJ45, 1- SC Fiber |
| Data Rate | 10/100/1000Mbps |
| Wavelength | Transmits at 1310 nm, Receives at 1550 nm |
| Max Distance | 20 km |
| Duplex Mode | Auto-negotiated Half-Duplex/Full-Duplex |
| Rack Compatibility | Can be used standalone or with TL-FC1420 rack |









