D-Link DEM-314GT – 1000BASE-LH Single-Mode 50km Gigabit SFP Transceiver with LC Connector, 1550nm Wavelength & Hot-Pluggable Design
Overview:
• The D-Link DEM-314GT is a Gigabit SFP Transceiver designed for compatible switches and network devices with SFP / mini-GBIC slots.
• It supports 1000BASE-LH Gigabit fiber connectivity over single-mode fiber with a transmission distance up to 50km.
• The transceiver uses an LC connector and operates at 1550nm wavelength, making it suitable for long-distance fiber backbone and uplink applications.
• It supports full-duplex IEEE 802.3x Flow Control, 3.3V power support, standard-compliant operation, and a metal enclosure to reduce EMI.
• The DEM-314GT is hot-pluggable, allowing installation and replacement without shutting down the compatible network device.
Key Features:
• 1000BASE-LH Gigabit SFP transceiver
• Single-mode fiber support
• Distance up to 50km
• LC connector
• 1550nm wavelength
• Full-duplex IEEE 802.3x Flow Control
• 3.3V power support
• Hot-pluggable design
• Standard-compliant operation
• Metal enclosure to reduce EMI
• Class 1 laser product
• Suitable for long-distance Gigabit fiber uplinks
• Designed for backbone and enterprise fiber applications
Technical Specifications:
General:
• Brand: D-Link
• Model: DEM-314GT
• Product Type: Gigabit SFP Transceiver
• Transceiver Type: SFP / Mini-GBIC
• Fiber Media Support: Single-Mode
• Network Standard: 1000BASE-LH
• Speed: Gigabit Ethernet
• Distance: Up to 50km
• Application: Gigabit Fiber Uplink, Backbone Connection, Enterprise Network Link, Long-Distance Fiber Extension
Interface and Fiber Specifications:
• Connector Type: LC
• Fiber Type: Single-Mode Fiber
• Wavelength: 1550nm
• Optical Receiver Sensitivity: -22dBm Max
• Fiber Distance: 50km
Power and Operational Specifications:
• Power Support: 3.3V
• Supply Voltage Range: 3.1V to 3.5V
• Maximum Voltage: 6.0V
• Maximum Current: 300mA
• Flow Control: Full-Duplex IEEE 802.3x Flow Control
• Hot Pluggable: Supported
• Housing: Metal Enclosure to Reduce EMI
Physical Specifications:
• Dimensions: 3.02 × 1.19 × 5.71cm
Safety and Certifications:
• Laser Safety: Class 1 Laser
• Safety Standard: EN 60825-1
• FDA: 21 1040.10 & 1040.11
Applications:
• Long-distance Gigabit fiber uplink
• Single-mode fiber backbone connection
• Switch-to-switch fiber connectivity
• Enterprise network expansion
• Campus network backbone
• Building-to-building fiber links
• Metropolitan network fiber links
• Network expansion using compatible SFP ports
• Fiber links requiring up to 50km distance
Connect Gates Recommendation:
• Connect Gates recommends the D-Link DEM-314GT for projects that require long-distance Gigabit single-mode fiber connectivity up to 50km.
• It is suitable for backbone, campus, and enterprise fiber links where a reliable LC single-mode SFP module is required.
• The 1550nm wavelength, hot-pluggable design, 3.3V power support, and metal enclosure make it practical for professional network infrastructure.
• For proper installation, Connect Gates recommends checking switch SFP compatibility, single-mode fiber availability, LC connector compatibility, required distance, and optical power budget before deployment.
Documents