D-Link DMC-920 – 10/100BASE-TX to 100BASE-FX Single-Fiber Media Converter, 20km Single-Mode Distance, WDM TX/RX Pair, Auto MDI/MDIX & Chassis Support
Overview:
• The D-Link DMC-920 is a Fast Ethernet Single-Fiber Media Converter designed to convert 10/100BASE-TX Ethernet twisted-pair signals into 100BASE-FX single-mode fiber signals.
• It uses single-fiber WDM technology, combining transmit and receive signals over one fiber strand using two different wavelengths.
• The DMC-920 is designed to be used in pairs, with DMC-920R and DMC-920T working together at both ends of the fiber link.
• It supports single-mode fiber up to 20km, making it suitable for long-distance network extension between buildings, remote sites, CCTV networks, and telecom cabinets.
• The converter supports Auto-Negotiation, Auto MDI/MDIX, store-and-forward mechanism, IEEE 802.3x Flow Control, back-pressure, front panel LEDs, standalone operation, and chassis installation.
Key Features:
• Fast Ethernet media converter
• 10/100BASE-TX to 100BASE-FX conversion
• Single-fiber WDM technology
• Single-mode fiber support
• Fiber distance up to 20km
• DMC-920R and DMC-920T pair operation
• Auto-Negotiation on TX port
• Auto MDI/MDIX on TX port
• Store-and-forward mechanism
• IEEE 802.3x Flow Control
• Back-pressure support
• Full wire-speed forwarding rate
• Front panel status LEDs
• Standalone operation support
• Chassis installation support
• Hot-swappable when used with chassis
• Manageable through Intelligent Chassis System
Technical Specifications:
General:
• Brand: D-Link
• Model: DMC-920
• Product Type: Fast Ethernet Single-Fiber Media Converter
• Conversion Type: 10/100BASE-TX to 100BASE-FX
• Fiber Type: Single-Mode Fiber
• Fiber Technology: Single-Fiber WDM
• Maximum Fiber Distance: 20km
• Installation: Standalone / Chassis Installation
• Application: Ethernet to Fiber Conversion, Long-Distance Fiber Extension, Single-Fiber Network Links
Model Pairing:
• DMC-920R: TX 1310nm / RX 1550nm
• DMC-920T: TX 1550nm / RX 1310nm
• Pair Requirement: DMC-920R and DMC-920T must be used together on both ends of the fiber link
Network Interface:
• Copper Port: 1 × RJ45 10/100BASE-TX Port
• Fiber Port: 1 × 100BASE-FX Single-Mode Fiber Port
• Copper Speed: 10/100Mbps
• Fiber Speed: 100Mbps
• Fiber Supported: 9/125µm and 10/125µm Single-Mode Fiber
• Auto MDI/MDIX: Supported on TX Port
• Auto-Negotiation: Speed and Duplex Mode on TX Port
Media Converter Features:
• Duplex Mode Configuration: Slide Switch for Fixed Half / Full Duplex Modes
• Transmission Method: Store-and-Forward
• Back Pressure: Supported
• Flow Control: IEEE 802.3x Flow Control
• Forwarding Rate: Full Wire-Speed Forwarding Rate
• Chassis Support: Supported
• Hot-Swappable: Supported When Used with Chassis
• Management: Manageable Through Intelligent Chassis System
LED Indicators:
• Per Device: Power
• Speed: 100Mbps
• Per Port: Full Duplex / Collision
• Per Port: LINK / ACT
Power Specifications:
• AC Input: 7.5V / 1.5A External Power Adapter
• Maximum Power Consumption: 7.2W
Physical Specifications:
• Dimensions: 120 × 88 × 25mm
• Weight: 305g
Environmental Specifications:
• Operating Temperature: 0°C to 40°C
• Storage Temperature: -25°C to 70°C
• Operating Humidity: 10% to 90% Non-Condensing
Certifications:
• EMI: FCC Class A, CISPR Class A, CE Class A, VCCI Class A
Applications:
• Ethernet to fiber conversion
• Single-fiber network extension
• Long-distance fiber links up to 20km
• Building-to-building network connection
• CCTV fiber backbone
• Remote site network connectivity
• Telecom cabinet installations
• Switch-to-switch fiber link
• Chassis-based media converter systems
Connect Gates Recommendation:
• Connect Gates recommends the D-Link DMC-920 for projects that require single-fiber Fast Ethernet media conversion over long distances.
• It is suitable when only one fiber core is available and the network link needs to reach up to 20km.
• The DMC-920R / DMC-920T pair design, WDM transmission, Auto MDI/MDIX, and chassis support make it practical for CCTV, telecom, and building-to-building fiber projects.
• For proper installation, Connect Gates recommends checking the required pair type, fiber distance, single-mode fiber availability, TX/RX wavelength direction, chassis requirement, and power location before deployment.