The MikroTik S-31DLC20D is a professional-grade 1.25G SFP transceiver module designed for high-reliability fibre optic networking. It features a 1310nm wavelength and a Dual LC connector, making it an ideal solution for long-distance single-mode fibre links up to 20 kilometers. Equipped with Digital Diagnostics Monitoring (DDM), this module allows for real-time monitoring of key operational parameters to ensure network stability.
Technical Specifications
- Product Code: S-31DLC20D
- Form Factor: SFP
- Data Rate: 1.25 Gbps
- Wavelength: 1310 nm
- Connector Type: Dual LC UPC
- Fibre Type: Single Mode (SM)
- Maximum Distance: 20 km
- Diagnostics: DDM (Digital Diagnostics Monitoring) supported
- Operating Temperature: -40°C to +70°C (Tested)
Key Features
- Long-Reach Connectivity: Optimised for stable, high-speed Gigabit Ethernet transmission over distances of up to 20 kilometers.
- Universal Compatibility: While tested for seamless integration with MikroTik hardware (such as the CCR, CRS, and RB2011/3011 series), it is also compatible with non-MikroTik SFP devices.
- Industrial Resilience: Engineered for reliable performance across a wide ambient temperature range, making it suitable for varied deployment environments.
- Real-Time Monitoring: Built-in DDM support provides essential health and performance data, simplifying maintenance and troubleshooting for network administrators.





