S-85DLC05D SFP Transceiver

The MikroTik S-85DLC05D is a multimode fiber SFP transceiver designed for short-range Gigabit Ethernet connections. This hot-swappable module enables network expansion over fiber infrastructure up to 550 meters. It’s ideal for enterprise networks, data centers, and building-to-building connectivity requiring reliable high-speed links.

Key Features & Benefits

• Hot-Swappable Design: Replace or add modules without powering down network equipment, minimizing downtime during maintenance or upgrades
• Multimode Fiber Support: Works with cost-effective OM2 and OM3 fiber cables, reducing infrastructure expenses for short-distance deployments
• 1.25Gbps Data Rate: Delivers full Gigabit Ethernet bandwidth for bandwidth-intensive applications like video streaming and large file transfers
• 550-Meter Transmission Range: Connects buildings or floors within campus environments without requiring signal repeaters or media converters
• MikroTik Ecosystem Compatibility: Integrates seamlessly with RouterBOARD switches and routers, ensuring plug-and-play deployment with MikroTik hardware

Technical Specifications

Optical Characteristics

• Wavelength: 850nm (short wavelength for multimode fiber)
• Data Rate: 1.25Gbps
• Maximum Distance: 550 meters over OM2 multimode fiber
• Connector Type: Dual LC (duplex configuration)
• Fiber Type: 50/125µm or 62.5/125µm multimode

Physical & Electrical

• Form Factor: SFP (Small Form-Factor Pluggable)
• Operating Temperature: 0°C to 70°C
• Power Consumption: <1W typical
• Digital Diagnostic Monitoring: DDM/DOM support for real-time performance monitoring

Compatibility

• Standards Compliance: IEEE 802.3z Gigabit Ethernet, SFF-8472 MSA
• Compatible with: MikroTik Cloud Router Switch series, RouterBOARD devices with SFP ports
• Protocol Support: 1000BASE-SX Ethernet

Use Cases & Applications

The S-85DLC05D transceiver module serves diverse networking scenarios effectively. For campus networks, it connects distribution switches across buildings within 550-meter distances. Data centers utilize these modules for rack-to-rack connectivity where fiber infrastructure exists. Additionally, the module works well for connecting wireless access point controllers to switches in hospitality or commercial facilities.

Network administrators appreciate the hot-swap capability during incremental network expansions. The 850nm wavelength optimizes performance over legacy multimode fiber installations, making upgrades cost-effective. Moreover, the digital diagnostic monitoring provides visibility into link quality, helping troubleshoot connectivity issues before they impact operations.