D-Link DEM-315GT – 1000BASE-LX Single-Mode 80km Gigabit SFP Transceiver with Duplex LC Connector, 1550nm Wavelength & Hot-Pluggable Design
Overview:
• The D-Link DEM-315GT is a 1000BASE-LX Single-Mode Gigabit SFP Transceiver designed for compatible switches and network devices with SFP slots.
• It supports Gigabit Ethernet optical communication over 9/125µm single-mode fiber with transmission distance up to 80km.
• The transceiver uses a Duplex LC connector and operates at 1550nm wavelength.
• It supports full-duplex Gigabit speeds, making it suitable for long-distance fiber uplinks, backbone connections, campus networks, and metropolitan network links.
• The DEM-315GT is hot-pluggable, has a metal enclosure for lower EMI, supports 3.3V power, and includes a TTL signal detect indicator.
Key Features:
• 1000BASE-LX Gigabit SFP transceiver
• Single-mode fiber support
• Distance up to 80km
• Duplex LC connector
• 1550nm wavelength
• Full-duplex Gigabit operation
• IEEE 802.3z compliant
• 802.3x Flow Control support
• Hot-pluggable design
• TTL signal detect indicator
• Metal enclosure for lower EMI
• Low power dissipation
• Class 1 laser product
• Suitable for long-distance Gigabit fiber uplinks
Technical Specifications:
General:
• Brand: D-Link
• Model: DEM-315GT
• Product Type: Gigabit SFP Transceiver
• Transceiver Type: SFP / Mini-GBIC
• Fiber Media Support: Single-Mode
• Network Standard: IEEE 802.3z 1000BASE-LX
• Speed: Gigabit Full-Duplex
• Distance: Up to 80km
• Application: Gigabit Fiber Uplink, Backbone Connection, Campus Network Link, Metropolitan Network Link
Interface and Fiber Specifications:
• Connector: Duplex LC Connector
• Fiber Type: 9/125µm Single-Mode Fiber
• Wavelength: 1550nm
• Power Budget: 22dB
• Low Power Dissipation: Less than 700mW
• Signal Indicator: TTL Signal Detect Indicator
Power and Compliance:
• Power Support: 3.3V
• Flow Control: IEEE 802.3x Flow Control
• Hot Pluggable: Supported
• Laser Safety: Class 1 Laser Product, EN60825-1 Compliant
• Housing: Metal Enclosure for Lower EMI
Applications:
• Long-distance Gigabit fiber uplink
• Single-mode fiber backbone connection
• Switch-to-switch fiber connectivity
• Campus network infrastructure
• Metropolitan Area Network links
• Building-to-building fiber connection
• Enterprise network expansion
• Fiber links requiring up to 80km distance
Connect Gates Recommendation:
• Connect Gates recommends the D-Link DEM-315GT for projects that require long-distance Gigabit single-mode fiber connectivity up to 80km.
• It is suitable for backbone, campus, and MAN links where a reliable Duplex LC single-mode SFP module is required.
• The 1550nm wavelength, 22dB power budget, hot-pluggable design, and metal enclosure make it practical for professional long-distance 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.