TP-Link
TP-Link TL-FC111A-20 100 Mbps WDM Media Converter 20 km switch module
Converts 10/100 Mbps copper to single-mode fibre over 20 km using WDM on one strand
- SpecificationsStandards and Protocols: IEEE 802.3, IEEE 802.3i, IEEE802.3u
- FeaturesComplies with 802.3u 10/100Base-TX, 100Base-FX standards Aut
- Extends network reach up to 20 km over single-mode fiber
- Single-fiber WDM technology transmits and receives on one strand
- Auto-negotiation handles half-duplex and full-duplex modes automatically
- Conforms to IEEE 802.3u 100Base-TX and 100Base-FX standards
- Pairs with TL-FC111B-20 for complete bidirectional link
What it is and who it serves
The TP-Link TL-FC111A-20 is a 100 Mbps WDM media converter that bridges a 100M RJ-45 copper port and a 100M SC single-mode fibre port. It converts electrical signals to optical signals, extending network reach up to 20 km over 9/125 µm fibre. Network engineers and installers use it to link copper segments with fibre backbones in campus, security or wireless deployments where EMI immunity and distance matter.
Suitable for and not for
This module suits teams that need a cost-effective way to add a single-fibre link up to 20 km using wavelength-division multiplexing, and who can deploy the matching TL-FC111B-20 at the far end. It does not suit installations that require gigabit throughput, multi-mode fibre, dual-strand fibre connectors, or managed switching features such as VLANs or SNMP monitoring.
The deciding specification
The single specification that determines fit is the 100 Mbps WDM single-mode fibre interface with a 20 km range, which dictates the required pairing with a TL-FC111B-20 unit operating on the complementary wavelength.
Highlights
- Extends network reach up to 20 km over single-mode fiber
- Single-fiber WDM technology transmits and receives on one strand
- Auto-negotiation handles half-duplex and full-duplex modes automatically
- Conforms to IEEE 802.3u 100Base-TX and 100Base-FX standards
- Pairs with TL-FC111B-20 for complete bidirectional link
Specifications
| Brand | TP-Link |
|---|---|
| Model | TL-FC111A-20 |
| Specifications | Standards and Protocols: IEEE 802.3, IEEE 802.3i, IEEE802.3u Basic Function: - Auto-negotiation of half-duplex / full-duplex transfer mode - Full-duplex flow control (IEEE 802.3x) - Half-duplex flow control (Backpressure) - Extends fiber distance up to 20km (12.4 miles) Ports: - 1 x 100M single SC/UPC port - 1 x 10/100M RJ45 port (Auto MDI/MDIX) WDM TX: 1550 nm WDM RX: 1310 nm Network Media 10BASE-T: - UTP category 3, 4, 5 cable (maximum 100m) - EIA/TIA-568 100O STP (maximum 100m) Network Media 100BASE-T: - UTP category 5, 5e cable (maximum 100m) - EIA/TIA-568 100O STP (maximum 100m) |
| Features | Complies with 802.3u 10/100Base-TX, 100Base-FX standards Auto-negotiation of Half-Duplex/Full-Duplex transfer mode 9/125 µm SMF (Single-Mode Fiber) Bidirectional WDM communication on a single fiber Ranges up to 20km (12.4 miles) Work with TL-FC111B-20 as a pair |
| Shipping weight | 0.34 kg |
| Package size | 203 × 165 × 64 mm |
Questions about this item
What does the 100Base-FX standard cap the fibre link at in practice?
The 100Base-FX standard limits the fibre port to 100 Mbps full-duplex, so the link runs at 100 Mbps even though the RJ-45 port can auto-negotiate 10 or 100 Mbps.
What physical fibre connector and cable type does the module need to fit?
It uses an SC connector on 9/125 µm single-mode fibre, so you must patch it with a matching SC-terminated SMF cable.
How is the converter installed, and which pairing step is often missed?
Insert the module into a compatible switch slot, connect the RJ-45 and SC cables, then pair it with a TL-FC111B-20 unit at the far end so the WDM wavelengths match.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
IBM
IBM 00JX058 Xeon E5-2640 v3 8-core 2.60 GHz 20 MB L3 90 W switch module
$217.99
0.00262522BTC
In stock
