The TP-Link TL-FC311B-20 is a Gigabit WDM (Wavelength Division Multiplexing) media converter designed to extend network connectivity over long distances. It features:
WDM Technology: Transmits and receives data over a single strand of single-mode fiber using different wavelengths (1310 nm for transmission and 1550 nm for reception), reducing cable requirements and costs.
20 km Fiber Distance: Supports fiber distances up to 20 kilometers, ideal for connecting remote locations such as surveillance cameras, remote offices, or network equipment.
Gigabit Ethernet Port: Equipped with a 10/100/1000 Mbps RJ45 port, providing high-speed Ethernet connectivity.
SC Fiber Port: Includes a Gigabit SC fiber port for reliable and high-performance fiber connections.
Plug-and-Play Operation: No configuration required; simply connect your devices to establish a network link.
Compact Design: Fanless and compact, suitable for desktop or rack-mounted installations.
Ideal for applications requiring long-distance data transmission, such as security surveillance, campus networking, or connecting remote buildings.
| Field | Value |
|---|---|
| Brand | TP-Link |
| Model | TL-FC311B-20 |
| Media Type | Electrical (RJ45) / Optical (SC Fiber) |
| WDM Technology | Yes |
| Transmission Wavelength | 1310 nm |
| Reception Wavelength | 1550 nm |
| Fiber Mode | Single-mode |
| Maximum Fiber Distance | 20 km |
| Ethernet Port | 1 × 10/100/1000 Mbps RJ45 |
| Fiber Port | 1 × SC Fiber Port |
| Auto-Negotiation | Yes |
| Auto-MDI/MDIX | Yes |
| Power Supply | 5V DC |
| Dimensions (W × D × H) | 94.5 × 73 × 27 mm |
| Weight | Approximately 0.2 kg |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -40°C to 70°C |
| Humidity | 10% to 90% non-condensing |



