Media converter MC112CS 10/100 Mbps, multimode/SMF fiber link up to 20 km

The MC112CS media converter provides a simple way to extend 10/100 Mbps Ethernet networks over fiber for links up to 20 km. It includes a copper RJ45 port for standard Ethernet and a fiber interface compatible with single-mode fiber, enabling connection of distant network segments, building-to-building links, or backbone extension. The compact unit is suitable for desktop or rack deployment in small offices, branch sites and network closets where reliable fiber connectivity is required.

Advantages

The device converts 10/100 Mbps Ethernet signals to a fiber interface while preserving link integrity and auto-negotiation on the copper side. Its support for single-mode fiber enables long-distance connectivity up to 20 km without additional repeaters. The compact design and standard power input make it practical for constrained spaces and simple installations. Low latency and transparent data forwarding allow the converter to integrate into existing Ethernet networks with minimal configuration.

Suitable for

• Extending LAN connections between buildings or floors over fiber
• Connecting remote network devices where copper cabling is impractical
• Integrating fiber segments into small office or branch networks
• Backbone extension for video surveillance, access control or data aggregation

Key specifications

• Data rate: 10/100 Mbps Ethernet
• Copper interface: RJ45, Ethernet over UTP
• Fiber interface: single-mode fiber compatible
• Maximum fiber link distance: up to 20 km
• Media conversion: electrical-to-optical and optical-to-electrical
• Form factor: compact desktop or rack-mountable module
• Latency: low, suitable for transparent Ethernet bridging

How to use

Install the media converter on a stable surface or in a rack location with adequate ventilation and power it using the supplied power adapter or standard power source. Connect the Ethernet device or switch to the RJ45 port using appropriate UTP cable and attach the single-mode fiber cable to the fiber port, ensuring correct transmit/receive alignment. Verify link LEDs to confirm successful electrical and optical link establishment. No additional software configuration is required for basic media conversion; the converter will pass Ethernet frames transparently and support auto-negotiation on the copper port.

Usage recommendations

Place the unit in a dry, temperature-controlled environment and use single-mode fiber with compatible connectors for optimal performance. Check fiber connectors for cleanliness before insertion and observe bend radius guidelines. For integration into managed networks, plan link testing and monitoring from network switches or external tools to verify quality and throughput. If using multiple converters in a chain, ensure power redundancy and proper labeling to simplify maintenance.