TP-Link
TP-Link TL-FC111A-20 10/100Mbps Fiber Media Converter 20km
★★★★★
Extend Your Network with Fiber ConnectivityIntroducing the TP-Link TL-FC111A-20 Fiber Media Converter. This device converts 10/100 Mbps Ethernet to 100Base-FX single-mode fiber, extending network distances up to 20 km. 10/100 Mbps WDM Media Converter Extends fiber distance up to 20km ...
$24.43*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.
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Overview
Extend Your Network with Fiber Connectivity
Introducing the TP-Link TL-FC111A-20 Fiber Media Converter. This device converts 10/100 Mbps Ethernet to 100Base-FX single-mode fiber, extending network distances up to 20 km.
- 10/100 Mbps WDM Media Converter
- Extends fiber distance up to 20km
- Transmits data at 1550 nm
Key Features
Designed to convert 100BASE-FX SC fiber to 100Base-Tx copper media or vice versa
Auto-negotiation of Half-Duplex/Full-Duplex transfer mode
Supports auto MDI/MDIX for TX port
TL-FC111A-20 adopts WDM (wavelength division multiplexing) technology, helping send and receive data at a distance up to 20 km with only one single-mode fiber, which saves half of the cable deployment cost for customers compares to dual-fiber deployment
Wavelength: Tx 1550 nm, Rx 1310nm; Compatible TP-Link model: TL-FC111B-20, TL-FC111PB-20
Specifications
Conversion Type
Fiber to Copper
Fiber Standard
100BASE-FX SC
Copper Standard
100Base-Tx
Data Rate
10/100Mbps
WDM Technology
Yes
Distance
Up to 20 km
Fiber Type
Single-mode
Tx Wavelength
1550 nm
Rx Wavelength
1310 nm
Duplex Mode
Auto Half-Duplex/Full-Duplex
TX Port Feature
Auto MDI/MDIX
Compatible Models
TL-FC111B-20, TL-FC111PB-20
Pros & Cons
👍 Pros
- Converts 100BASE-FX SC fiber to 100Base-Tx copper media or vice versa, enabling flexible network integration
- Utilizes WDM (wavelength division multiplexing) technology, allowing data transmission up to 20 km over a single-mode fiber, halving cable costs
- Supports auto-negotiation of Half-Duplex/Full-Duplex transfer mode, simplifying configuration for network administrators
- Features auto MDI/MDIX for the TX port, which eliminates the need for crossover cables when connecting devices
- Offers an extended transmission distance of up to 20 km, suitable for connecting geographically separated network segments
👎 Cons
- Specifically designed for 10/100Mbps speeds, meaning it is not suitable for Gigabit Ethernet or faster networks
- Requires a compatible TP-Link model like TL-FC111B-20 or TL-FC111PB-20 for a complete WDM link, which is an additional purchase
- The use of SC fiber connectors may not be compatible with all existing fiber optic infrastructures without adapters
- WDM technology is efficient for single-fiber deployment but specific wavelength requirements might limit compatibility with other WDM devices
- Installation may require basic networking knowledge to ensure proper configuration and connection for optimal performance
Frequently Asked Questions
What is the primary function of the TP-Link TL-FC111A-20?
The primary function of the TP-Link TL-FC111A-20 is to convert 100BASE-FX SC fiber media to 100Base-Tx copper media, or vice versa, to bridge different network types.
How far can this media converter transmit data?
This media converter can send and receive data at a distance of up to 20 km using only one single-mode fiber, thanks to its WDM technology.
What is WDM technology and how does it benefit cable deployment?
WDM (wavelength division multiplexing) technology allows data to be sent and received over a single optical fiber, which effectively saves half of the cable deployment cost compared to dual-fiber setups.
Does this converter support different duplex transfer modes?
Yes, the TL-FC111A-20 supports auto-negotiation of Half-Duplex/Full-Duplex transfer mode for flexible network configurations.
What are the specific wavelengths used for transmission and reception?
This model uses a Tx (transmit) wavelength of 1550 nm and an Rx (receive) wavelength of 1310 nm.
Is this device compatible with all fiber media converters?
This converter is designed to be compatible with specific TP-Link models such as the TL-FC111B-20 and TL-FC111PB-20 to complete a WDM link.
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