D-Link 100Base-TX to 100Base-FX Multi-mode Fiber (SC) Media Converter (DMC-300MSC)
The D-Link DMC-300MSC Media Converter enables seamless integration between copper Ethernet and fiber optic networks, extending the reach of your network beyond standard Ethernet cable limits. This media converter connects 10/100 Mbps twisted-pair Ethernet devices to 100 Mbps multi-mode fiber networks using an SC connector, supporting distances of up to 2 km. Ideal for data centers, enterprise networks, and long-distance office connectivity, the DMC-300MSC supports full- and half-duplex operation, auto-MDI/MDIX, and store-and-forward transmission, providing reliable, high-performance network expansion with easy plug-and-play deployment.
Product Features
Copper-to-Fiber Conversion
Converts 10/100 Mbps copper Ethernet signals to 100 Mbps multi-mode fiber, allowing network expansion over long distances without signal loss.
High-Speed Data Transmission
Supports Ethernet (10/20 Mbps) and Fast Ethernet (100/200 Mbps) with full wire-speed forwarding for efficient and reliable network performance.
Flexible Media Support
Compatible with Cat 3/4/5/5e twisted-pair cables for 10/100 Mbps connections and multi-mode fiber with SC connectors for distances up to 2 km.
Duplex and Auto-MDI/MDIX Support
Supports both half-duplex and full-duplex operation, along with auto-MDI/MDIX for easy integration with existing network devices.
Diagnostic LEDs
Equipped with power, speed, full-duplex/collision, and LINK/ACT indicators for simplified monitoring and troubleshooting.
Store-and-Forward Transmission
Ensures accurate data delivery by checking packets before forwarding, reducing network errors and improving reliability.
Compact and Easy Installation
Small form factor design with an external 5V/1A power adapter allows simple, space-saving deployment.
Product Specifications
- Ports:1 x 10/100BASE-TX RJ-45, 1 x 100BASE-FX SC
- Standards: IEEE 802.3 (10BASE-T/F), IEEE 802.3u (100BASE-TX/FX)
- Data Transfer Rate:Ethernet: 10 Mbps/20 Mbps (half/full-duplex), Fast Ethernet: 100 Mbps/200 Mbps (half/full-duplex)
- Duplex Mode: Half-duplex/full-duplex
- Media Types:10BASE-T: 2-pair Cat 3/4/5/5e UTP (up to 100 m), 10/100BASE-TX: 2-pair Cat 5/5e UTP (up to 100 m), 100BASE-FX: Multi-mode fiber with SC connector (up to 2 km)
- Media Exchange Interface: Auto-MDI/MDIX
- Transmission Mode: Store-and-forward
- Forwarding Rate: Full wire-speed
- Diagnostic LEDs: Power, Speed (twisted pair), Full-duplex/Collision, LINK/ACT (twisted pair)
- AC Input: 5 V / 1 A external power adapter



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