Single Mode SC WDM Bi-Directional Fiber Media Converter - 100 Mbps

In this review the Single Mode SC WDM Bi-Directional Ethernet Fiber Media Converter is evaluated for small offices and network installers who need a simple, reliable way to extend Fast Ethernet over long distances. The bottom line: it is a compact, metal-housed converter that uses WDM single-strand fiber to carry 100 Mbps traffic up to 12.4 miles, making it an economical choice when a single-fiber run is the limiting factor. It works as a stand-alone unit or inside the vendor chassis and ships with the external 5 VDC power adapter and instructions for quick installation.

Key Features

• Single-strand WDM: Uses wavelength division multiplexing so transmit and receive run on one single-mode fiber strand, reducing cabling needs.
• 100 Mbps performance: Offers Fast Ethernet speeds with a 100Base-FX fiber port and a 10/100Base-TX RJ45 copper port for common network devices.
• Long reach: SC single-mode port supports distances up to 20 km (12.4 miles), suitable for campus and remote building links.
• Auto MDI/MDI-X RJ45: The copper port supports Auto MDI/MDI-X and jumbo frames up to 1.6 KBytes for easier integration and larger packet support.
• Metal housing and LEDs: A sturdy metal enclosure and status LEDs make the device durable and easy to monitor in rack or wall setups.
• Chassis compatibility: Can be used standalone or inserted into a 14-slot media converter chassis for consolidated deployment.

Who It's For

This converter is aimed at network technicians, small IT teams, and contractors who need a simple link to extend Fast Ethernet over single-mode fiber where only one fiber strand is available. It is especially useful in retrofits or sites where pulling additional fiber is costly.

It is not for users who require Gigabit throughput, multimode fiber, or advanced managed features like SNMP; those needing higher speeds or managed switching should look at fiber switches or gigabit converters instead.

Pros & Cons

Pros

• Single-strand WDM reduces cabling requirements for long-distance links.
• Simple plug-and-play integration with Auto MDI/MDI-X RJ45 and status LEDs.
• Metal housing and 3 year manufacturer warranty provide durability and peace of mind.

Cons

• Limited to Fast Ethernet (100 Mbps), so it is not suitable where Gigabit speeds are required.
• Requires a matching WDM converter on the far end (model 510530) to function, so paired purchase or inventory is necessary.

Specifications

Our Verdict

The converter is a practical, cost-effective tool for extending Fast Ethernet over long single-mode links where using one fiber strand matters. For installers who need a rugged, NDAA-compliant unit that fits in a media converter chassis or runs standalone, it delivers straightforward operation and good reach. Avoid it if you need Gigabit speeds or managed features, but for 100 Mbps single-strand links it represents solid value backed by a three year warranty.

Frequently Asked Questions

Do I need a matching unit on the far end?
Yes, it must be paired with the corresponding WDM bi-directional converter on the remote end to complete the single-strand link.

What speeds are supported?
The unit provides Fast Ethernet speeds (100 Mbps) via 100Base-FX on fiber and 10/100Base-TX on copper.

Is the power adapter included?
Yes, the external 5 VDC power adapter and instructions are included with the converter.